CLL Testing Archives

Testing is an ever-present part of the cancer journey, helping identify stage, treatment options, progress, and potential recurrence. Testing can also introduce a whole new vocabulary into your life. Don’t let jargon overwhelm you or undermine your grasp of test options and results.

We can help you evolve into an informed Chronic Lymphocytic Leukemia (CLL) advocate who understands results and how to use testing as a conduit to the most personalized care.

More resources for Chronic Lymphocytic Leukemia (CLL) Testing from Patient Empowerment Network.

What Tests Should I Get Before Seeing a CLL Specialist?

What Tests Should I Get Before Seeing a CLL Specialist? from Patient Empowerment Network on Vimeo.

Chronic lymphocytic leukemia (CLL) patients are advised to have some testing before seeing a CLL specialist. Watch as Dr. Nadia Khan from Fox Chase Cancer Center explains tests that help predict CLL progression, treatment response, and time to treatment.

See More from START HERE CLL

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Can Supplements Be Taken During CLL Treatment?

Can Supplements Be Taken During CLL Treatment?

How is Flow Cytometry Used in CLL?

Will CLL Watch and Wait Be Redefined for Patients?

Will CLL Watch and Wait Be Redefined for Patients?


Transcript:

Mary Leer: 

Here’s a question from Richard: I am a CLL patient currently on “watch and wait.”  When is the right time and what tests should have been performed before seeing a CLL specialist? 

Dr. Nadia Khan: 

Richard, thank you for your excellent question. There are a number of tests with respect to CLL that help us to prognosticate more accurately, and those would include either a FISH panel, fluorescence in situ hybridization for CLL which identifies this common amplification and deletions that have been described in CLL. Additionally, an IgVH mutational test and a TP53 sequencing test would be the three basic prognostic tests used to identify what kind of CLL a patient has. 

This testing should be repeated at any point wherein a patient is changing therapy or at any point where there’s a change in the clinical status of the patient. Outside of these standard tests, there are other molecular tests that can be ordered and are commercially available for use…for use by clinicians. These molecular tests can also identify changes within the CLL that can help to prognosticate at this time, outside of the standard tests that I mentioned to you, there are no proven benefits to other testing, but the results of additional testing can just really help inform your clinician about the likelihood of you needing treatment in the near future and the likelihood of response to therapy.

What Tests Reveal If CLL Treatment Is Working?

What Tests Reveal If CLL Treatment Is Working? from Patient Empowerment Network on Vimeo.

Some chronic lymphocytic leukemia (CLL) patients may wonder how they can check to see if treatment is working. Watch as Dr. Nadia Khan from Fox Chase Cancer Center answers a viewer’s question and provides insights on what tests are used in assessing response to CLL treatment.

See More from START HERE CLL

Related Programs:

Can Supplements Be Taken During CLL Treatment?

Can Supplements Be Taken During CLL Treatment?

How is Flow Cytometry Used in CLL?

Will CLL Watch and Wait Be Redefined for Patients?

Will CLL Watch and Wait Be Redefined for Patients?


Transcript:

Mary Leer: 

Dr. Khan, here’s a question that I think many are probably thinking of right now, what tests do you give patients to see if CLL treatment is working?

Dr. Nadia Khan: 

Thank you, Jessica. During the course of CLL treatment and at the end of a time-limited treatment course, we’re assessing for responses, so as a patient is going through their treatment, we may decide to re-image to determine if there has been debulking of lymph nodes. And depending on the treatment that we’re administering and where the lymph nodes are located, we may decide to do imaging sooner or later, so for example, if there are palpable lymph nodes while a patient is on therapy, and we can measure these readily by physical exam in the clinic, we may not feel as compelled to re-image at an early time point, if there is valiantly or in large seen that is hard to palpate. And we want to understand if treatment is working after approximately three to four cycles of therapy, we would assess for a good response to treatment if clinically, it also does appear that patients are responding, and if there was any question as to respond, we would image at an earlier time point when patients are being treated with a venetoclax-based (Venclexta) regimen and there is significant adenopathy or an enlarged spleen, we may reassess the size of lymph nodes and spleen during the course of venetoclax ramp-up to determine if patients can be transitioned from inpatient to outpatient ramp-up. 

How Often Do CLL Patients Develop a Second Gene Mutation?

How Often Do CLL Patients Develop a Second Gene Mutation? from Patient Empowerment Network on Vimeo.

Chronic lymphocytic leukemia (CLL) patients can sometimes develop a second gene mutation. Watch as Dr. Nadia Khan from Fox Chase Cancer Center shares how common it is to develop a second mutation and when it’s important to retest for genetic changes.

See More from START HERE CLL

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Are There Any Long-Term Side Effect Risks for CLL Patients?

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How to Approach Side Effects With CLL Medications

How to Approach Side Effects with CLL Medications


Transcript:

Mary Leer: 

This question comes from Laurie. How common is it for CLL patients to develop a second gene mutation? 

Dr. Nadia Khan: 

Laurie, Thanks for that question. It is not common for most call patients to have significant alterations in the genetic landscape of the CLL. With that being said, there are a few notable exceptions for CLL with TP53 dysfunction or complex cytogenetics, there is a higher likelihood that there will be genetic instability in those CLL clones. Therefore, it’s important to retest for changes if there is a change in the biology of the CLL, if there is a progression on therapy, for example, or at the time when a new therapy is planned. 

CLL Patient-Expert Q&A

Dr. Nadia Khan | CLL Patient-Expert Q&A from Patient Empowerment Network on Vimeo.

Is CAR T-cell therapy a cure for chronic lymphocytic leukemia (CLL)? What specific lab tests will I need to get a second opinion? CLL expert Dr. Nadia Khan answers questions from CLL patients and families. 

Have a question for a future Patient-Expert Q&A Email us: question@powerfulpatients.org with subject line: CLL Patient-Expert Q&A 

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How to Approach Side Effects with CLL Medications


Transcript:

Mary Leer:

Dr. Khan, first of all, thank you for being part of this program. 

Dr. Nadia Khan:

Thank you so much for inviting me to participate.

Mary Leer:

We have a question from Larry about side effects. Larry says: I’ve been fighting side effects with each medicine. Will the correct answer for side effects in CLL always be to stop the medicine? 

Dr. Nadia Khan:

Larry, thank you for your question. It is an excellent one, and this is something that we encounter on a very regular basis in CLL patients who are on targeted therapies. The side effects occur frequently in patients taking BTK inhibitors, in patients taking PIK inhibitors, and we have some side effects reported on BCLT inhibitors as well, typically side effects on all of these targeted therapies can be managed with either dose reduction or supportive therapies, and we don’t necessarily have to stop a medication due to a side effect that is encountered, and of course, it would depend on the type of side effect and the severity of the side effect before deciding to pause therapy for a time or to dose reduce or add other medications to help.

Mary Leer:

Sarah has a question about side effects. How can I tell if side effects are from CLL, my medicine, or just a part of aging? 

Dr. Nadia Khan:

Thanks for that question, Sarah. It can be a challenge to tease out the cause of any given complaint, whether the symptom is due to underlying other medical conditions, the medications a patient is on, their CLL therapy, their CLLl itself is something that we find to be challenging, and it can often be a process of elimination and understanding when side effects started and how they are related to the known side effect profile of a therapy is often a starting point. Depending on the side effect, we may decide to institute a treatment holiday, and if the side effect improves or resolves during the treatment holiday, it’s more clear that the side effect is due to the medication in question. If the side effect persists during that period of time, then it’s more likely to be due to something else.

Mary Leer:

George asks, are there any long-term side effect risks for CLL patients? 

Dr. Nadia Khan:

That’s a great question, George. It really would depend on the therapy being instituted and when in the chemoimmunotherapy era for CLL patients, we have a very different perspective of what short-term and long-term side effects were and are for those patients who have been treated with chemoimmunotherapy. For patients treated with targeted therapies and immunotherapy combinations today, there tends to be fewer serious long-term side effects when looking at the various drug classes. For example, BTK inhibitors, there is a risk of atrial fibrillation that remains constant throughout the course of therapy, and if a patient is on therapy for one year or 10 years, they can develop that particular side effect. High blood pressure can be significant with BTK inhibitors as well, and that risk also tends to be stable. In terms of infection risk, there is relative immunosuppression with all CLL therapeutics, and so our concern, more recently has been focused on COVID infection, serious bacterial and viral infections tend to be less frequent, we don’t institute prophylaxis for those infections because they tend to be so few and far between in the patients that we’ve treated. 

Mary Leer:

Thank you, Dr. Khan. Here’s a question from Richard:  I am a CLL patient currently on “watch and wait.”  When is the right time and what tests should have been performed before seeing a CLL specialist? 

Dr. Nadia Khan:

Richard, thank you for your excellent question. There are a number of tests with respect to CLL that help us to prognosticate more accurately, and those would include either a FISH panel, fluorescence in situ hybridization for CLL which identifies this common amplification and deletions that have been described in CLL. Additionally, an IgVH mutational test and a TP53 sequencing test would be the three basic prognostic tests used to identify what kind of CLL a patient has. This testing should be repeated at any point wherein a patient is changing therapy or at any point where there’s a change in the clinical status of the patient. Outside of these standard tests, there are other molecular tests that can be ordered and are commercially available for use… For use by clinicians. These molecular tests can also identify changes within the CLL that can help to prognosticate at this time, outside of the standard tests that I mentioned to you, there are no proven benefits to other testing, but the results of additional testing can just really help inform your clinician about the likelihood of you needing treatment in the near future and the likelihood of response to therapy. 

Mary Leer:

This question comes from Laurie. How common is it for CLL patients to develop a second gene mutation? 

Dr. Nadia Khan:

Laurie, Thanks for that question. It is not common for most call patients to have significant alterations in the genetic landscape of the CLL. With that being said, there are a few notable exceptions for CLL with TP53 dysfunction or complex cytogenetics, there is a higher likelihood that there will be genetic instability in those CLL clones. Therefore, it’s important to retest for changes if there is a change in the biology of the CLL, if there is a progression on therapy, for example, or at the time when a new therapy is planned.

Mary Leer:

Yolanda’s question is, what is CAR T therapy and who is eligible? 

Dr. Nadia Khan:

Thank you, Yolanda. This is a question that I get asked very frequently. CAR-T therapy is an exciting cellular therapy that has been FDA-approved in a number of lymphomas, and it is currently not FDA-approved for patients with CLL. So at this time, CLL patients can receive CAR-T therapy in the setting of a clinical trial only, and it is typically reserved for those patients who have progressed or relapsed after multiple lines of therapy and for whom there is no alternative therapy for consideration. Often, it is considered in the context of the clinical trial prior to the use of allogeneic stem cell transplant, because the results of allo transplant and CAR-T seemed to be fairly comparable. CAR T therapy, however is much better tolerated than allo transplant, both of these modalities are very rarely employed for our CLL patient today because of the very effective targeted therapies and immunotherapies that we have to use. 

Mary Leer: 

Dr. Khan, Chuck’s question is, what are the side effects of CAR-T cell therapy? 

Dr. Nadia Khan: 

Thank you, Chuck. For your excellent question, CAR-T-therapy is associated with two main types of side effects, one is Cytokine Release syndrome or CRS, which happens within the first two weeks of receiving CAR cells, and that can manifest as fevers, chills, a drop in blood pressure, shortness of breath, and the requirement of oxygen. When that happens to patients, there are medications that are given to help improve those cytokine-mediated events. Another major side effect with CAR-T therapy is neurotoxicity, which also happens within the first 14 days in some patients who receive CAR therapy, and that can manifest as anything from a headache to more concerning confusion, seizures and coma. CRS happens commonly in patients who receive party therapy and is usually managed very successfully with anti-inflammatory therapies given intravenously in the hospital and can be used for patients even who get outpatient CAR-T therapy.

Dr. Nadia Khan: 

When patients do suffer with neuro toxicities, intravenous therapies are also employed to combat that, and when necessary, patients might require escalation to an intensive care setting when these toxicities are very severe.

Mary Leer: 

Dr. Khan, is CAR T therapy a cure for CLL? 

Dr. Nadia Khan: 

Thank you for your question, Bernard. CAR-T therapy has been curative for a minority of patients who have been treated with CARs on clinical trials, and unlike other lymphomas In CLL, there hasn’t been an FDA approval as yet for CAR-T therapy, and we are hopeful for that to change in the future as CARs are modified and may potentially become more effective at eradicating the CLL and hopefully resulting in better side effect profiles and patients who do receive CAR-T therapy, the majority of patients who have received CARs in CLL studies have not had durable remission, unfortunately.

Mary Leer: 

Dr. Khan, what is conditioning therapy and why is it given prior to infusion of the CAR T cells?

Dr. Nadia Khan: 

Thank you, Samuel. Conditioning therapy is a course of – a briefer course of chemotherapy that’s given just prior to CAR-T therapy, really to prepare the body in a way to receive the CARs, and it makes the CARs more effective when there has been a level of immunosuppression to allow the CARs to expand more freely after they have been re-infused into a patient.

Mary Leer: 

Okay, here’s a question that Sandra asks, I’m preparing for CLL treatment, can I take my vitamins, herbs, or other supplements during treatment?

Dr. Nadia Khan: 

Thanks for that excellent question, Sandra. It’s so important to review all of your medications with your provider before starting any therapy during the course of your CLL treatment, drug interactions with herbals and over-the-counter medications can result in serious side effects, some over-the-counters and Herbals can inhibit the effectiveness of CLL therapy. So it’s important to discuss these with your provider on a case-by-case basis.

Mary Leer: 

Dr. Khan, here’s a question that I think many are probably thinking of right now, what tests do you give patients to see if CLL treatment is working?

Dr. Nadia Khan: 

Thank you, Jessica. During the course of CLL treatment and at the end of a time-limited treatment course, we’re assessing for responses, so as a patient is going through their treatment, we may decide to re-image to determine if there has been debulking of lymph nodes. And depending on the treatment that we’re administering and where the lymph nodes are located, we may decide to do imaging sooner or later, so for example, if there are palpable lymph nodes while a patient is on therapy, and we can measure these readily by physical exam in the clinic, we may not feel as compelled to re-image at an early time point, if there is valiantly or in large seen that is hard to palpate. And we want to understand if treatment is working after approximately three to four cycles of therapy, we would assess for a good response to treatment if clinically, it also does appear that patients are responding, and if there was any question as to respond, we would image at an earlier time point when patients are being treated with a Venetoclax [VENCLEXTA] based regimen and there is significant adenopathy or an enlarged spleen, we may reassess the size of lymph nodes and spleen during the course of Venetoclax [VENCLEXTA] ramp-up to determine if patients can be transitioned from inpatient to outpatient ramp-up.

Mary Leer: 

Dr. Khan, this is our final question. Karen asks, with many new therapies available, will watch and wait be redefined for CLL patients? 

Dr. Nadia Khan: 

What an excellent question, Karen. Currently, the strategy for CLL patients is to institute therapy when there is likely to be a benefit with the intervention, and there are studies that are ongoing looking at earlier intervention with oral therapy, and once we see the readout for patients with particularly high-risk features. I think it is possible that we’ll have an alternative strategy for those patients. Thankfully, our CLL patients live very long lives, and what we’ve come to see over decades of treatment experience with our CLL patients is that early intervention to date has not resulted in longer… Longer survival. So at this point, it’s not something that’s recommended, but we may have more information soon.

Mary Leer: 

Dr. Khan, thanks for joining us today and answering all of these questions for our audience. Just a reminder to our audience, please take the CLL-Patient-Expert Q&A survey following this webinar.

Mary Leer: 

Dr. Khan, before we end this program,  what are you optimistic about for the future of CLL? 

Dr. Nadia Khan: 

So I’m very optimistic about the future of CLL therapeutics, we’ve already come to see excellent responses that are very durable with time-limited targeted therapy and immunotherapy approaches. In the future, it is likely that we will be using a more personalized approach to treating any given CLL patient using their genetic and molecular profile to decide on their treatment strategy, a single-agent approach versus multiple targeted therapies to eradicate CLL clones. In the future will be looking at endpoints like minimal residual disease, as well as clonal evolution to help guide our treatment strategy for patients with CLL

Which Tests Do You Need Before Deciding on a CLL Treatment Path?

Which Tests Do You Need Before Deciding on a CLL Treatment Path? from Patient Empowerment Network on Vimeo.

Why do you need biomarker testing before deciding on a treatment plan for your CLL? Learn which key tests should occur before treatment begins and how the results may impact your care decisions.

See More From INSIST! CLL


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What CLL Tests Are Essential and How Do Results Impact Treatment and Prognosis?

What CLL Tests Are Essential and How Do Results Impact Treatment and Prognosis?

What is High-Risk CLL and How Is It Treated?

What is High-Risk CLL and How Is It Treated?

What Factors Impact CLL Treatment Options?

What Factors Impact CLL Treatment Options?

 

Transcript:

Why do you need biomarker testing before deciding on a treatment plan for chronic lymphocytic leukemia—also known as CLL?

The results may predict how your CLL will behave and could indicate that one type of treatment may be more effective than another.

Biomarker testing—also referred to as risk stratification, genetic, or molecular testing—identifies specific gene mutations, proteins, chromosomal abnormalities and/or other molecular changes that are unique to YOUR CLL. 

These changes are only in the CLL cells and do not affect all the cells in your body.  These are not genetic changes that you inherit or pass on to your children.

Several tests that may help to guide these decisions, include:

  • The FISH test identifies chromosome abnormalities, including high-risk markers like the 17p deletion.
  • Next is testing for IGHV mutational status, which determines whether IGHV is mutated in a patient. Mutated IGHV indicates lower-risk CLL.
  • Then there is the TP53 mutation status test, which looks for mutations in the TP53 gene.

So why do these tests results matter?

One reason they matter is because patients with certain biomarkers may respond better to one treatment approach over another. 

  • For example, patients who are IGHV mutated have a special benefit from chemoimmunotherapy with FCR and could consider this approach. Patients who are IGHV unmutated should not consider FCR.
  • Additionally, patients with deletion 17p or TP53 mutations should never take chemoimmunotherapy, as it results in only a very short-term benefit.

When are these tests administered?

IGHV status typically doesn’t change over time and only needs testing at diagnosis or before your initial treatment.

FISH and TP53 should be repeated before beginning every treatment regimen, as these results may change over the course of the disease.

How can you make sure you have had essential biomarker testing?

  • First, always speak up and ask questions. Remember, you have a voice in YOUR CLL care. Your doctor is expecting you to ask questions and should be able to answer them.
  • Ask your doctor if you have had or will receive biomarker testing—including FISH, IGHV, and TP53–and how the results may impact your care and treatment plan. Be sure to ask for paper or electronic copies of your important test results.
  • And finally, bring a friend or a loved one to your appointments to help you process information and to take notes.

To learn more about your CLL and access tools for self-advocacy, visit powerfulpatients.org/CLL.

What Are Common Symptoms of CLL?

What Are Common Symptoms of CLL? from Patient Empowerment Network on Vimeo.

What are common signs and symptoms of chronic lymphocytic leukemia (CLL)? Dr. Lindsey Roeker reviews how CLL is typically diagnosed and symptoms that patients may experience.

Dr. Lindsey Roeker is a hematologic oncologist at Memorial Sloan Kettering Cancer Center. Learn more about Dr. Roeker here.

Download Guide

See More From INSIST! CLL


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What CLL Tests Are Essential and How Do Results Impact Treatment and Prognosis?

What CLL Tests Are Essential and How Do Results Impact Treatment and Prognosis?

What is High-Risk CLL and How Is It Treated?

What is High-Risk CLL and How Is It Treated?

What Factors Impact CLL Treatment Options?

What Factors Impact CLL Treatment Options?

 

Transcript:

Katherine:                  

How is CLL diagnosed?

Dr. Roeker:                 

So, for most patients, CLL is diagnosed after a routine blood test shows a high white blood cell count. That’s kind of the most common way that we find people entering into our clinic. Other things that people can notice is they have lumps or bumps that they’ve felt in their neck or under their armpits. Those are some other symptoms that can lead to the diagnosis, but often once a patient finds that their white blood cell count is high, some additional testing is done, and the diagnosis of CLL is made.

Katherine:                  

What are some common symptoms of CLL? You mentioned the lumps and bumps.

Dr. Roeker:                 

So, often in early stages, the lumps and bumps in the neck are the most common that people recognize, but fevers or chills, night sweats, where patients are waking up drenched, having to change their pajamas, or weight loss without trying, are some other symptoms that can raise some alarm bells and make people start looking for something.

And CLL can be a diagnosis that can be found through that, as well.

Confusing CLL Terms Defined

Confusing CLL Terms Defined from Patient Empowerment Network on Vimeo.

What is FISH testing? What is IGHV? Physician assistant Danielle Roberts explains the meaning of these often confusing terms and their role in disease monitoring and CLL treatment decisions.

Danielle Roberts is a physician assistant with the Bone Marrow Stem Cell Transplant (BMT) team at Winship Cancer Institute at Emory University. Learn more here.

See More From INSIST! CLL


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Practical Advice for Coping with a CLL Diagnosis: What’s Next?

Practical Advice for Coping with a CLL Diagnosis: What’s Next?

Could CLL Be Inherited?

Could CLL Be Inherited?

What Should You Know About CLL Genetic Testing?

 

Transcript:

Danielle Roberts:    

So, a FISH test is a test from your either blood in your bloodstream or from your bone marrow biopsy. And it stands for florescence in situ hybridization. And this is a highly specific test that looks at the chromosomal changes with CLL. This can be done in the peripheral blood or in the bone marrow.

And it’s important to remember that when we consider genetic testing and CLL, we aren’t talking about inherited genes, but the abnormalities that occur within the CLL itself.

So, an IGHV test is a mutational test that stands for the immunoglobulin heavy-chain variable gene locus. This can also be done in the peripheral blood and the bone marrow biopsy. This test can help us determine treatment options as well as help with determining what high-risk features there are for your particular disease.

So, 17p deletion is the deletion of the long arm of chromosome 17. This can be seen at initial diagnosis or it can be acquired later on in disease progression. So, for all patients this is one of the more important tests that if you’re going to ask your doctor if you’ve had, you should ask at a diagnosis. If you’ve relapsed later on, you should ask again if that mutational status is being observed or checked in your follow-up testing.

17p deletion is something that can be acquired along the course of your disease progression. It is not always seen at initial diagnosis but can be acquired if you are relapsed or refractory. Therefore I recommend that every time you’re having peripheral blood for flow or if you’re having bone marrow biopsies, especially if it’s for treatment planning purposes, you should advocate to your physician team to make sure that this test is being performed as it will drive – or as it can drive treatment decision-making.

What Tests Should CLL Patients Insist They Receive?

What Tests Should CLL Patients Insist They Receive? from Patient Empowerment Network on Vimeo.

Which chronic lymphocytic leukemia (CLL) tests are most critical in CLL care? Dr. Jennnifer Woyach details the key tests, what the tests identify, and how they help provide optimal care personalized to each patient.

Dr. Jennifer Woyach is a hematologist-oncologist specializing in chronic lymphocytic leukemia (CLL) at Ohio State’s Comprehensive Cancer Center – James Cancer Hospital & Solove Research Institute. Find out more about this expert here. 

See More From INSIST! CLL


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What Should You Know About CLL Genetic Testing?

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What Does It Mean to Have High-Risk CLL?

 

Transcript:

Katherine:                  

The goal of this program, Dr. Woyach, is to provide the confidence and tools for patients to advocate for the essential tests to get the best care personalized to them. Are there specific tests that patients should make sure they have?

Dr. Woyach:               

Yeah. In CLL, I would say there are three that are very, very important before starting treatment. The first is something called the IGHV mutational status.

What that is defined as is the changes in the variable region of the immunoglobulin heavy chain. That’s a big mouthful that doesn’t mean a lot to most people. So, I’ll give you just a little background on what that really means biologically and then, what that means clinically. So, every B lymphocyte, so a normal B lymphocyte and a CLL cell, has receptors on the surface of the cell that allow it to interact with the environment. And in a normal B lymphocyte, this is really important for the immune system. So, bacteria, virus, something is in the body and the B cell surface receptor is going to be able to recognize that that’s not supposed to be there and then, do something about it.

In CLL, the surface receptors don’t do a lot of interacting with the outside environment but they’re still present there. And in a normal B cell development, the B cells are initially formed in the bone marrow.

And at the time that they’re formed, every one of those receptors is exactly the same. So, we can do DNA sequencing on those receptors and you’ll see that every one is identical. So, during a normal development of a B cell, it undergoes this process that’s called somatic hypermutation, which is where those receptors mutate or change. And that’s important because then, they can recognize different things. And so, you end up with this whole repertoire of thousands or millions of B cells that all are a little bit different and can recognize something different.

So, CLL cells, they’re all clonally related to each other. They’re all going to have the same receptor on their surface. And about 60 percent of the time that receptor is different than the newly born B cells. And so, this is probably a little bit more simplistic than it actually is. But the way we think about that is that those B cells or those CLL cells, which we call mutated because they underwent that mutational process, we think that that means that they come from a more mature initiating cell.

And they tend to be less aggressive, more slow growing. The other 40 percent of patients, if you look at the receptor on their surface, it’s exactly the same as the new B cells in the bone marrow. And we call those IGHV unmutated because they haven’t done that mutational process. And they behave very differently. So, in mutated CLL, only about half of people will ever need therapy in their lives. An average time from diagnosis to first treatment is about 10 years. In contrast to those patients who have unmutated IGHV, basically, all of those people will need therapy at some point in their lives. And average time from diagnosis to first treatment is about three years.

So, you can see how it really breaks people up into two very different categories of disease.

So, that’s the first test and one that’s really important. That’s also one that doesn’t change during the course of the disease. So, if somebody is diagnosed with mutated CLL, it’s always mutated. So, the next marker that’s important is, actually, chromosome changes. So, we know that there are a few different recurrent chromosome abnormalities in CLL that are common and important prognostically. So, one of these is a deletion of part of chromosome 13. It’s called a 13q deletion. It indicates, again, very slow-growing CLL. Patients how have normal chromosomes also are very good disease biology.

Some people have an extra copy of chromosome 12. That’s called trisomy 12, and that’s an intermediate marker. And then, there are two markers that are associated with a little bit more aggressive CLL. One is a deletion of proto chromosome 11. That’s called an 11q deletion.

And the other one is a deletion of proto chromosome 17 called a 17p deletion. These are all abnormalities that are important to test for. And the way that we test for these is something called FISH testing. And FISH stands for fluorescence in situ hybridization. And it’s a way to use an antibody to look for specific abnormalities in the CLL cells. So, that’s important. And another thing that can be done at specialized centers is something called stimulated cytogenetics. So, I mentioned to you with FISH testing, we’re looking for specific abnormalities with antibodies. But the things that we don’t test for we’re not going to see.

So, if they have a chromosome change that we don’t have an antibody looking at, we’ll never detect it. And we know that patients with CLL who have what’s called a complex karyotype, which is three or more chromosome abnormalities, they also have more aggressive disease.

So, like I said, at specialized centers, we can do what’s called a stimulated karyotype, which is where we look at all of the chromosomes. So, that’s FISH testing and karyotype. And then, the last thing is, actually, doing DNA sequencing for a specific mutation called a TP53 mutation. And TP53 is an important tumor suppressor protein. And it is mutated quite commonly in CLL. About 8 to 10 percent of patients at the time of first treatment and, actually, up to about 40 percent of people later on in the course of the disease. Most of the time, we see TP53 mutations occur at the same time as 17p deletions. About 80 percent of the time, those occur together but they can occur on their own.

So, that’s the third test that’s often helpful, especially prior to starting treatment.

Katherine:                  

Do patients need to be retested over time?

Dr. Woyach:               

Yeah. So, for the TP53 mutation and for FISH, it’s important to test for those before each line of therapy. Because those are so important in indicating disease biology and, specifically, with the 17p deletion and TP53 mutation, those indicate patients that are likely to not have as good of a response to treatment. It’s always important to check for those prior to therapy.

What Should You Know About CLL Genetic Testing?

What Should You Know About CLL Genetic Testing? from Patient Empowerment Network on Vimeo.

In chronic lymphocytic leukemia (CLL) diagnosis and disease management, genetic testing plays a key role. Dr. Jennifer Woyach explains what is examined in CLL genetic testing, the timing and administration of testing, and testing advances.

Dr. Jennifer Woyach is a hematologist-oncologist specializing in chronic lymphocytic leukemia (CLL) at Ohio State’s Comprehensive Cancer Center – James Cancer Hospital & Solove Research Institute. Find out more about this expert here. 

See More From INSIST! CLL


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Could CLL Be Inherited?

What Tests Should CLL Patients Insist They Receive?

What Does It Mean to Have High-Risk CLL?

 

Transcript:

Katherine:                  

Before we get deeper into our conversation about genetics, there are a few terms that patients are often confused by. As a primer, I thought we could start by defining some of these terms. First, what is genetic or molecular testing?

Dr. Woyach:               

So, all cancer cells will have a collection of mutations or abnormalities in the DNA that either make the cell a cancer cell or make it behave in a certain way. And so, these mutations are referred to as the genetic abnormalities of the CLL cells. So, when we talk about genetic testing in CLL, we use it to mean a number of things. We can use it to look specifically for types of mutations so types of genetic abnormalities.

 We also sometimes use that as a kind of catch-all term like genetic or molecular testing also to refer to looking at changes in the chromosomes inside of a CLL cell. That’s also called cytogenetic testing. And then, we also use a number of tests in CLL where we look at specific, not necessarily abnormalities, but just changes in the cell that can indicate a certain type of behavior.

Katherine:                

How is this different from genomic testing?

Dr. Woyach:               

So, genetic and genomic testing, I think, are usually used interchangeably. But sometimes, we use them in different contexts but they really mean the same thing in this case.

Katherine:                  

Okay. And what is a chromosome change?

Dr. Woyach:              

So, as you might remember from biology class maybe a long time ago, as it was for me, inside a cell, so a normal cell or a cancer cell, you have the nucleus, which holds the DNA.

And the DNA is organized into chromosomes. And so, when a cell goes through division, it takes those chromosomes, copies them and then, breaks them apart into two different cells. So, changes can happen in the level of the DNA itself. So, a mutation where one base is changed to something different. So, that would be just like a single nucleotide change. And that’s something you’re not going to see as a change to a chromosome. Another thing that can happen in CLL and in other cancers, too, is that during that process of cell division, an entire chromosome could be duplicated. It could be absent.

More commonly, parts of chromosomes can change. This is all because cancer cells just do a very poor job of editing their division.

An in normal cells, there are multiple steps along the way from the process of copying the genes to copying the chromosomes to doing the division. And every step along the way, if something happens incorrectly, which happens a lot, the cell usually just dies. But a cancer cell is not going to do that because it has so many signals that keep telling it to stay alive that it can tolerate a lot of different abnormalities. And so, you end up with cells that are just very different from what you would see normally.

Katherine:                  

All right. Well, that’s a great way for us to start. Let’s go into the discussion of the relationship between testing and CLL. How is testing administered?

Dr. Woyach:               

So, almost all testing, in terms of molecular genomic testing in CLL, can be done on a blood sample. So, that’s one important thing.

The CLL guidelines recommend that testing for certain prognostic factors be done before the administration of therapy. So, at the very least, before somebody starts treatment, they should have these tests performed. In my practice and I think most CLL specialists find it really helpful to do these tests, not necessarily just at the time of treatment but really at the time of diagnosis or the time we first see the patient because CLL is a very heterogenous disease, which means that it behaves very differently in different people. So, there are some people that are diagnosed and will go 10 or 20 years before they need any treatment.

And many don’t need treatment at all. Whereas other people are very likely to need treatment within the first few years after diagnosis. Some of the genetic tests that we do can help counsel patients on where they’re likely to fall in that spectrum.

And so, I think that’s helpful for people to know early on in the disease course. But really, the tests can be performed at any time before treatment

Katherine:              

Have there been advances in testing?

Dr. Woyach:               

Absolutely. I think in every cancer, we’ve learned so much more about the biology of the disease, specific mutations that cause specific behaviors of cells, and really much more in CLL about the common genetic changes and what those means to response to therapy.

CLL Treatment: Finding the Best Option for YOU

CLL Treatment: Finding the Best Option for YOU from Patient Empowerment Network on Vimeo.

How could genetic testing results impact your chronic lymphocytic leukemia (CLL) treatment options and overall care? Dr. Jennifer Woyach discusses essential molecular testing and provides tools for self-advocacy and decision making.

Dr. Jennifer Woyach is a hematologist-oncologist specializing in chronic lymphocytic leukemia (CLL) at Ohio State’s Comprehensive Cancer Center – James Cancer Hospital & Solove Research Institute. Find out more about this expert here. 

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Transcript:

Katherine:                  

Welcome to Insist CLL, a program focused on empowering chronic lymphocytic leukemia patients to take an active role and insist on better care. Today, we’ll discuss the latest advances in CLL, including the role of genetic testing and how this may affect treatment options. I’m Katherine Banwell, your host for today’s program. Joining me is Dr. Jennifer Woyach. Welcome. Would you please introduce yourself?

Dr. Woyach:               

Sure. My name is Jennifer Woyach. I’m a CLL specialist from the Ohio State University.

Katherine:                  

Thank you. A reminder, this program is not a substitute for seeking medical advice. Please refer to your own healthcare team. Well, Dr. Woyach, let’s start by understanding CLL. Would you briefly walk us through what CLL actually is?

Dr. Woyach:               

Sure. CLL is a cancer of the blood, the lymph nodes, and the bone marrow.

And it happens when a particular type of white blood cell called a B lymphocyte acquires genetic mutations and transforms into a cancer cell. And then, over time, those cancer cells continue to grow and divide. And they can cause symptoms such as enlarged lymph nodes if the cells get stuck in the lymph nodes and continue to grow there. It can cause a high white blood cell count, which usually doesn’t cause any symptoms but is one of the things that we see often in CLL. And then, it can also cause the bone marrow to not be able to produce normal cells because it can get so infiltrated or so full of CLL cells.

And this can cause things like anemia, which is lowering of the red blood cell count and thrombocytopenia, which is lowering of your platelet count.

Katherine:                  

What are the steps involved in reaching a diagnosis?

Dr. Woyach:               

CLL is an interesting disease because it’s one of the only cancers that does not require a biopsy of something for a diagnosis.

So, we can, actually, make the diagnosis of CLL based on the peripheral blood. So, just a blood draw in somebody’s doctor’s office. Usually, CLL is diagnosed in the asymptomatic stage. So, somebody goes to their primary care doctor, has blood drawn usually for another reason, and is found to have a high white blood cell count or sometimes even a fairly normal white blood cell count but a high percentage of lymphocytes. That certain type of cancerous white blood cell. So, the next step in the diagnosis then is something called peripheral blood flow cytometry, which is a specialized test where we look at the markers or antigens on the surface of white blood cells.

So, there is kind of a code of these markers on the surface of all of your blood cells that can tell what type of cells they are. So, for CLL in particular, we’ll see that the cells express some of the normal markers we would see on a normal B lymphocyte.

Things like CD19, CD20, CD23. But they also express a marker called CD5, which is found on normal T lymphocytes but shouldn’t be found on B lymphocytes. And so, this collection of surface markers can make the diagnosis of CLL. Sometimes, we do need to do extra studies like a bone marrow biopsy or a lymph node biopsy. But often times, those are not necessary at the time of diagnosis.

Katherine:                  

When you meet with patients, Dr. Woyach, what are some common misconceptions that you hear about?

Dr. Woyach:               

I think the biggest thing that I hear, and grant it I see a lot of patients after they’ve been diagnosed by someone, gone to see an oncologist and then, come to me after, but one of the common things that I hear is that somebody has told them along the way that they have the good type of cancer, which I think is not a very helpful thing to hear as a patient because, of course, no cancer is a good type of cancer.

I think it’s important to note that CLL is one that has a lot of treatment options and usually extended survival. But I think that’s one of the most common misconceptions that I hear.

Katherine:                  

Before we get deeper into our conversation about genetics, there are a few terms that patients are often confused by. As a primer, I thought we could start by defining some of these terms. First, what is genetic or molecular testing?

Dr. Woyach:               

So, all cancer cells will have a collection of mutations or abnormalities in the DNA that either make the cell a cancer cell or make it behave in a certain way. And so, these mutations are referred to as the genetic abnormalities of the CLL cells. So, when we talk about genetic testing in CLL, we use it to mean a number of things. We can use it to look specifically for types of mutations so types of genetic abnormalities.

We also sometimes use that as a kind of catch all term like genetic or molecular testing also to refer to looking at changes in the chromosomes inside of a CLL cell. That’s also called cytogenetic testing. And then, we also use a number of tests in CLL where we look at specific, not necessarily abnormalities, but just changes in the cell that can indicate a certain type of behavior.

Katherine:                  

How is this different from genomic testing?

Dr. Woyach:               

So, genetic and genomic testing, I think, are usually used interchangeably. But sometimes, we use them in different contexts but they really mean the same thing in this case.

Katherine:                  

Okay. And what is a chromosome change?

Dr. Woyach:               

So, as you might remember from biology class maybe a long time ago, as it was for me, inside a cell, so a normal cell or a cancer cell, you have the nucleus, which holds the DNA.

And the DNA is organized into chromosomes. And so, when a cell goes through division, it takes those chromosomes, copies them and then, breaks them apart into two different cells. So, changes can happen in the level of the DNA itself. So, a mutation where one base is changed to something different. So, that would be just like a single nucleotide change. And that’s something you’re not going to see as a change to a chromosome. Another thing that can happen in CLL and in other cancers, too, is that during that process of cell division, an entire chromosome could be duplicated. It could be absent.

More commonly, parts of chromosomes can change. This is all because cancer cells just do a very poor job of editing their division.

An in normal cells, there are multiple steps along the way from the process of copying the genes to copying the chromosomes to doing the division. And every step along the way, if something happens incorrectly, which happens a lot, the cell usually just dies. But a cancer cell is not going to do that because it has so many signals that keep telling it to stay alive that it can tolerate a lot of different abnormalities. And so, you end up with cells that are just very different from what you would see normally.

Katherine:                  

All right. Well, that’s a great way for us to start. Let’s go into the discussion of the relationship between testing and CLL. How is testing administered?

Dr. Woyach:               

So, almost all testing, in terms of molecular genomic testing in CLL, can be done on a blood sample. So, that’s one important thing.

The CLL guidelines recommend that testing for certain prognostic factors be done before the administration of therapy. So, at the very least, before somebody starts treatment, they should have these tests performed. In my practice and I think most CLL specialists find it really helpful to do these tests, not necessarily just at the time of treatment but really at the time of diagnosis or the time we first see the patient because CLL is a very heterogenous disease, which means that it behaves very differently in different people. So, there are some people that are diagnosed and will go 10 or 20 years before they need any treatment.

And many don’t need treatment at all. Whereas other people are very likely to need treatment within the first few years after diagnosis. Some of the genetic tests that we do can help counsel patients on where they’re likely to fall in that spectrum.

And so, I think that’s helpful for people to know early on in the disease course. But really, the tests can be performed at any time before treatment

Katherine:                  

Have there been advances in testing?

Dr. Woyach:               

Absolutely. I think in every cancer, we’ve learned so much more about the biology of the disease, specific mutations that cause specific behaviors of cells, and really much more in CLL about the common genetic changes and what those means to response to therapy.

Katherine:                  

The goal of this program, Dr. Woyach, is to provide the confidence and tools for patients to advocate for the essential tests to get the best care personalized to them. Are there specific tests that patients should make sure they have?

Dr. Woyach:               

Yeah. In CLL, I would say there are three that are very, very important before starting treatment. The first is something called the IGHV mutational status.

What that is defined as is the changes in the variable region of the immunoglobulin heavy chain. That’s a big mouthful that doesn’t mean a lot to most people. So, I’ll give you just a little background on what that really means biologically and then, what that means clinically. So, every B lymphocyte, so a normal B lymphocyte and a CLL cell, has receptors on the surface of the cell that allow it to interact with the environment. And in a normal B lymphocyte, this is really important for the immune system. So, bacteria, virus, something is in the body and the B cell surface receptor is going to be able to recognize that that’s not supposed to be there and then, do something about it.

In CLL, the surface receptors don’t do a lot of interacting with the outside environment but they’re still present there. And in a normal B cell development, the B cells are initially formed in the bone marrow.

And at the time that they’re formed, every one of those receptors is exactly the same. So, we can do DNA sequencing on those receptors and you’ll see that every one is identical. So, during a normal development of a B cell, it undergoes this process that’s called somatic hypermutation, which is where those receptors mutate or change. And that’s important because then, they can recognize different things. And so, you end up with this whole repertoire of thousands or millions of B cells that all are a little bit different and can recognize something different.

So, CLL cells, they’re all clonally related to each other. They’re all going to have the same receptor on their surface. And about 60% of the time that receptor is different than the newly born B cells. And so, this is probably a little bit more simplistic than it actually is. But the way we think about that is that those B cells or those CLL cells, which we call mutated because they underwent that mutational process, we think that that means that they come from a more mature initiating cell.

And they tend to be less aggressive, more slow growing. The other 40% of patients, if you look at the receptor on their surface, it’s exactly the same as the new B cells in the bone marrow. And we call those IGHV unmutated because they haven’t done that mutational process. And they behave very differently. So, in mutated CLL, only about half of people will ever need therapy in their lives. An average time from diagnosis to first treatment is about 10 years. In contrast to those patients who have unmutated IGHV, basically, all of those people will need therapy at some point in their lives. And average time from diagnosis to first treatment is about three years.

So, you can see how it really breaks people up into two very different categories of disease.

So, that’s the first test and one that’s really important. That’s also one that doesn’t change during the course of the disease. So, if somebody is diagnosed with mutated CLL, it’s always mutated. So, the next marker that’s important is, actually, chromosome changes. So, we know that there are a few different recurrent chromosome abnormalities in CLL that are common and important prognostically. So, one of these is a deletion of part of chromosome 13. It’s called a 13q deletion. It indicates, again, very slow growing CLL. Patients how have normal chromosomes also are very good disease biology.

Some people have an extra copy of chromosome 12. That’s called trisomy 12 and that’s an intermediate marker. And then, there are two markers that are associated with a little bit more aggressive CLL. One is a deletion of proto chromosome 11. That’s called an 11q deletion.

And the other one is a deletion of proto chromosome 17 called a 17p deletion. These are all abnormalities that are important to test for. And the way that we test for these is something called FISH testing. And FISH stands for fluorescence in situ hybridization. And it’s a way to use an antibody to look for specific abnormalities in the CLL cells. So, that’s important. And another thing that can be done at specialized centers is something called stimulated cytogenetics. So, I mentioned to you with FISH testing, we’re looking for specific abnormalities with antibodies. But the things that we don’t test for we’re not going to see.

So, if they have a chromosome change that we don’t have an antibody looking at, we’ll never detect it. And we know that patients with CLL who have what’s called a complex karyotype, which is three or more chromosome abnormalities, they also have more aggressive disease.

So, like I said, at specialized centers, we can do what’s called a stimulated karyotype, which is where we look at all of the chromosomes. So, that’s FISH testing and karyotype. And then, the last thing is, actually, doing DNA sequencing for a specific mutation called a TP53 mutation. And TP53 is an important tumor suppressor protein. And it is mutated quite commonly in CLL. About eight to ten percent of patients at the time of first treatment and, actually, up to about forty percent of people later on in the course of the disease. Most of the time, we see TP53 mutations occur at the same time as 17p deletions. About 80% of the time, those occur together but they can occur on their own.

So, that’s the third test that’s often helpful, especially prior to starting treatment.

Katherine:                  

Do patients need to be retested over time?

Dr. Woyach:               

Yeah. So, for the TP53 mutation and for FISH, it’s important to test for those before each line of therapy. Because those are so important in indicating disease biology and, specifically, with the 17p deletion and TP53 mutation, those indicate patients that are likely to not have as good of a response to treatment. It’s always important to check for those prior to therapy.

Katherine:                  

We have a patient question. I have 17p deletion. Should I be worried?

Dr. Woyach:               

So, 17p deletion is usually associated with more aggressive disease biology almost always associated with that unmutated IGHV. The reason I bring that up is there are a very small subset of patients who have 17p deletion and mutated IGHV who, actually, have pretty indolent or slow growing disease.

People who don’t, which is the majority of them with 17p deletion, do have a shortened time to treatment and shortened survival with most of our current therapies. There have been a lot of advances though in the treatment of 17p deleted CLL. And may of our newer therapies can very much prolong the remission time in the lives of patients with 17p deletion.

Katherine:                  

Dr. Woyach, how do these chromosomal changes affect disease progression and prognosis?

Dr. Woyach:               

So, the markers that are associated with more aggressive disease biology usually are going to be associated with people that need treatment within the first few years after diagnosis, especially those people who have 17p deletion, 11q deletion, unmutated IGHV.

Katherine:                  

What exactly are prognostic factors? Would you define that?

Dr. Woyach:               

Sure. Prognostic factors, and I mentioned three of them, the IGHV, FISH, and the TP53 mutation, are ones that have been studied extensively and shown that the presence of this marker or some change in this marker is associated with a change in the biology of the disease or in the response to therapy.

Katherine:                  

How does the identification of these changes or mutations affect treatment options?

Dr. Woyach:               

Well, right now, we’re lucky in CLL because we have a lot of treatment options. I would say the most important changes when we’re talking about somebody with CLL that is about to start their first treatment is the decision of whether chemotherapy is ever appropriate. So, almost everybody with CLL now is treated exclusively with targeted therapies.

So, nonchemotherapeutic options. There are some people who are young, and in CLL terms that means under the age of 65, who have mutated IGHV and who otherwise have good genetic list disease. So, normal chromosomes of the 13q deletion, no TP53 mutation. That small subset of patients, actually, has the potential to be cured with a specific type of chemotherapy. It’s called FCR or fludarabine, cyclophosphamide, rituximab. So, for those young, healthy patients, it’s really important to know those risk factors to know if they are in that group that has that potential for cure.

The converse to that is if patients don’t fall in that group, they probably shouldn’t receive chemotherapy as their first treatment because it’s not as effective as our other therapies.

Katherine:                  

Yeah. It makes sense.

Dr. Woyach:               

And then, even in the future with first and other treatments with novel therapies, we know that patients with 17p deletion and TP53 mutation tend to have a shorter response time. And so, what I use that for in my practice is I know that those are people that I really have to be sure that we’re following them closely, taking any signs of progression seriously, and always have a back up plan for what we’re going to do if this treatment doesn’t work.

Katherine:                  

We have another question from a patient who wants to know if their children will inherit CLL. Is there any link between inherited mutations and CLL?

Dr. Woyach:               

That’s a very, very common and really important question. I would say of the hematologic cancers, CLL is one with higher linkage in families, which means that people with CLL are more likely to have another family member with CLL though it’s still not very common.

And it’s very different from breast cancer or the solid tumors where we know that these specific mutations indicate families that are going to have risk of disease. There has actually been a lot of study over the years of families that tend to have multiple people with CLL. Unfortunately, there really have not been genes identified that are the reason for those family linkages. I think there has been only one family that I know of where they’ve actually found a gene that was likely the cause of multiple family members’ illnesses. So, yeah, there is no indication to test family members.

I tell people do not worry that you’re going to pass this to your children or your grandchildren. CLL is not something that we should be using as like a marker of whether you should have kids or should have anything like that.

So, maybe a little more likely in family members but not enough to really be worried about that.

Katherine:                  

What are the differences or difference between inherited and acquired genetic mutations?

Dr. Woyach:               

So, inherited mutations are those that you get from your parents. And there are lots of inherited mutations that, actually, can predispose to cancer. Specifically, I mentioned the TP53 mutation and CLL cells. Well, there are also people who inherit a TP53  mutation have risk factors for multiple cancers. And CLL, specifically, every mutation that we talk about is an acquired mutation. So, that’s also known as a somatic mutation. So, they’re mutations in the cancer cells. But if you did DNA sequencing of the normal cells, they would not be there.

Katherine:                  

We have a question from a patient. If I have FCR, does that rule out me using a targeted therapy later on?

Dr. Woyach:               

Absolutely not. And, actually, all of the studies of the targeted therapies, all of the early studies were done in people who previously had had chemotherapy. Most of them had received FCR. So, certainly, receiving chemotherapy doesn’t mean that you can’t get a targeted therapy later on.

Katherine:                  

What are other factors that are important to consider when deciding on a treatment route?

Dr. Woyach:               

So, besides the genetic factors we talked about, other things are age and very closely related to age is fitness status. So, how active is somebody? How able are they to do all of their normal activities? Are there other health problems that we need to be concerned about when thinking of treatment?

As well, certain medications can influence treatment choices, specifically, with oral therapies where there might be drug interactions. And then, also a lot of the decision of frontline therapy is patient preference right now. So, do people prefer to have a time limited therapy? Do they prefer to have an indefinite therapy? Do they prefer an all p.o. regimen or a mix of p.o. and IV? So, there are definitely a lot of considerations when thinking about frontline treatment.

Katherine:                  

Dr. Woyach, what do you feel is the patient’s role in this conversation about treatment approaches?

Dr. Woyach:               

I think that, obviously, the patient is the most important part of the talk of treatment indications. Like I mentioned, sometimes we have the discussion of chemotherapy versus a targeted therapy. More often, the discussion is we have three approved frontline CLL therapies right now. We have two BTK inhibitors or Bruton’s tyrosine kinase inhibitors, ibrutinib, acalabrutinib.

And then, we have a BCL-2, venetoclax, that’s given in combination with an antibody called obinutuzumab. These are very different treatments in terms of side effects, [inaudible] [00:28:13] how they’re administered, how often they’re administered, just as an example. The BTK inhibitors are pills. And they’re meant to be given indefinitely. So, you start them with plans that you’re not going to stop them, unless the patient doesn’t tolerate them or they stop working. And so, with that type of regimen, you have the kind of burden of being on treatment for a long period of time.

But on the flipside, it’s very easy to start treatment. So, if you decide you want a BTK inhibitor, I write a prescription for it, it comes to your house, you start it. I usually see patients monthly for the first six months and then, we go to every three months. It’s very easy to start treatment.

The other type of treatment, the Venetoclax plus with the obinutuzumab regimen, that’s the BCL-2 inhibitor with an antibody, it’s a finite therapy. So, people are treated for a year and then, they go off treatment. The flipside of that is they’re a lot more time intensive in the beginning. So, you have the IV therapy with the obinutuzumab. Venetoclax you, actually, have to ramp up the dose so patients have to come in weekly for the first five weeks and they have to come in monthly for their infusions. So, it’s much more time intensive upfront but then, you get to stop treatment. And so, those are considerations that I can’t answer for somebody.

I don’t know which one people would prefer and people prefer different things. So, we spend a lot of time talking about all of the different scenarios and what’s going to make the therapy work best for the patient.

Katherine:                  

How can patients stay informed about CLL?

Dr. Woyach:               

There is a lot of good information about CLL that’s available online through The Leukemia & Lymphoma Society.

They have a number of resources for lots of different cancers, including CLL. There are a number of different patient centered websites. One is called the CLL Society. There are others that are heavily moderated, provide a lot of good information, and tend to stay on topic with CLL current developments and don’t get into the weeds too much I would say.

Katherine:                  

If there are side effects, what would some of the side effects be for these targeted therapies?

Dr. Woyach:               

So, it depends on the drug. So, BTK inhibitors, specifically, ibrutinib can cause some joint and muscle pain, some rashes, diarrhea, heart burn. Those are things that tend to, if they’re going to happen, usually happen earlier on in treatment and tend to get better over time. It can also cause high blood pressure. It can cause an abnormal heart rhythm called atrial fibrillation.

So, those are things we watch out for with ibrutinib. Acalabrutinib really has all of the same side effects but for many of them, they don’t occur as often. And then, the tradeoff there is ibrutinib is given once a day and acalabrutinib is given twice a day. With venetoclax plus obinutuzumab with that regimen, you get a lot more hematologic toxicity. So, you see more lowering of the good white blood cell count, which is, obviously, a risk for infections. That regimen comes with a risk of something called tumor lysis syndrome, which is where the cells can break down too quickly and cause damage to the kidneys, damage to the heart.

It can also cause some GI disturbance like some diarrhea, nausea, abdominal pain, things like that. I see there are a lot of side effects. And, of course, when I’m talking to a patient about treatment, we go over them in more detail than that. But I think the important thing is with all of these therapies, we do have ways to manage these side effects.

One thing I think is important for patients to remember is your doctor doesn’t know you’re having side effects unless you tell them. So, we know that people have these side effects. But if you don’t tell us that you’re having diarrhea or heart burn or things like that, we can’t help with it. And we have a lot of medicines that can help these things.

Katherine:                  

That’s a good point. Are there emerging treatments patients should know about?

Dr. Woyach:               

Yeah. There are a lot of really exciting things going on in CLL right now. And CLL is a disease that has been completely transformed in the last five to ten years and is poised to do so again. So, I mentioned these therapies that we use for frontline treatment and there are clinical trials now combining them together. So, these agents work so well on their own. Are they going to be even better if we add them together?

There are also newer target therapies, different targets that we are finding increasingly important in CLL, as well as a modality called CAR-T cells, which most people have heard of where we take patients’ own T cells, modify them in the lab and then, give them back with a goal of getting those cells engineered to kill CLL cells.

These are all things that are not ready for prime time in CLL yet but are available in clinical trials. And I think one other thing I’d really like to put a plug in for is clinical trials in CLL because right now, we’re at a point where our therapies are really very good. But if people just do those treatments, we are never going to figure out which one is the best or figure out, for specific types of patients, which treatment is the best. And so, I advocate that any of my patients that are eligible for clinical trials should consider them because that’s how we make progress in the disease from an altruistic sense.

That’s how we make things better for everybody. That’s one way a patient can think about it. But more personally than that, being in a clinical trial gives somebody the opportunity to get a treatment that they otherwise wouldn’t get that might be better than our standard of care therapies.

Katherine:                  

Dr. Woyach, as a researcher in the field, why are you hopeful?

Dr. Woyach:               

I am so hopeful in CLL because there is so much that we’re learning every day about the biology of the disease, about specific mutations and other genetic factors that are important and really can be targeted by new drugs. Paralleling our understanding of the disease, there also are many more techniques to make these targeted therapies that kill cancer cells selectively while sparing normal cells and making our drugs even more tolerable.

And I think both the targeted therapies like this and the potential of combining them, figuring out sequences that are best but then, also these newer modalities where we, actually, get the immune system involved like the CAR-T cells. They’re making CAR NK cells now. And just lots of other strategies that could be used together with targeted therapies to, hopefully, cure the disease.

Katherine:                  

Thank you for taking the time to join us today and sharing all of this information with the patients. We appreciate it.

Dr. Woyach:               

Of course. It’s my pleasure.

Katherine:                  

Please take a moment to fill out our survey. It helps us as we plan upcoming programs. And thank you to all of our partners. To learn more about CLL and to access tools to help you become a proactive patient, visit Powerfulpatients.org. I’m Katherine Banwell.

Ask Your Doctor About These Essential Genetic Tests for CLL

Ask Your Doctor About These Essential Genetic Tests for CLL from Patient Empowerment Network on Vimeo.

Genetic testing results can impact a chronic lymphocytic leukemia (CLL) patient’s treatment options and provide a deeper understanding into their disease. Dr. Steven Coutre, a CLL specialist, reviews essential tests and explains their role in CLL care.

Dr. Steven Coutre is a Professor of Medicine in the Hematology Department at Stanford University Medical Center. Learn more about this expert here.

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Transcript:

Dr. Steven Coutre:

In terms of testing for CLL, additional testing, of course, diagnostically, it’s generally not a challenge. It’s very straight-forward. A test that we call Flow Cytometry on a blood sample is usually sufficient to establish the diagnosis. Very, very uncommonly would a bone marrow exam be needed, for example. And in routine practice, also, we don’t necessarily give CT scans to establish a diagnosis or even to, as people say, stage the disease. It really isn’t necessary in most cases.

However, we do have a staging system that correlates with the extent of the disease and that’s simply based on our exam and blood counts, but people also want more information. They wanna know how they’re gonna do, specifically. So, we can add additional tests, genetic testing as people often call it, that can further subdivide individuals into groups that give you additional information on how you might do, meaning if you’re without symptoms, and an observation is recommended, you wanna know, “Well, how long is it gonna be before I need treatment?” Although our staging system gives that information, we can refine that further.

One test is the so-called FISH test, which looks at specific chromosome abnormalities, and the second test that’s generally used is called the IGHV Mutation Assay. That’s really looking at what’s called the mutational status of your immunoglobulin genes. So, it’s really those two broad categories that are most relevant.

Now, we don’t necessarily advocate doing that testing on everyone at the time of diagnosis. Certainly, not everyone who is without symptoms, where we’ve already decided that treatment is not indicated. So, as you can imagine, you can do that testing. You might come up with a profile that’s less favorable. And then, instead of the watch and wait approach, or as folks like to call it, “watch and worry approach,” you worry even more. But then, of course, if you have a favorable profile, then you’re happier. You’re more pleased.

However, we don’t do anything differently regardless of what those tests show, at least at current state. Compared to a decision that’s already been made about treat or not treat. We do, however, strongly advocate getting that testing at the time of treatment, and sometimes, repeating some of the testing with subsequent treatment, when you require treatment, say, a second time, in some cases. So, very important to have a discussion about these tests and what information you will get from them.

Well, we’ll often see patients who are coming for another opinion about their disease. Perhaps they’ve been recently diagnosed, and they have been advised for observation, so, it’s, of course, natural to ask whether that’s a reasonable approach. And in that context, other testing often comes up in the conversation. Perhaps they had the testing done, the FISH, and the mutational testing, and they wanna know what it means, or actually we see some results that have been obtained and we ask them about it. And there’s very often confusion, or really lack of information about what they mean.

So, we really try to discuss that issue. That issue of testing with each and every patient, whether or not they’ve had it done, really trying to let them know what it means. That way they’re fully informed, and in some cases, people feel very strongly that they would like to have it done, even through they realize that we’re not gonna act on it at that point. So, I think pretty much for all patients, it should be part of the initial discussion.

Again, in terms of genetic testing are these tests that I discussed. It’s important to understand what information they give you so you understand why your physician may be making a distinction between one therapy versus another. It is very, very important to get that testing, if somebody is talking about using chemotherapy, for example, hopefully. That’s quite uncommon. But with our newer agents, we know that they work broadly despite those other features.

Nevertheless, I think it’s important for a patient to at least expect the discussion about these tests. We’re not asking you to go to your physician and ask that they be done in all cases, but really understand perhaps why your physician recommended that they not be done at that particular time. 

Advocate for These CLL Genetic Tests

Advocate for These CLL Genetic Tests from Patient Empowerment Network on Vimeo.

Genetic testing results can influence a chronic lymphocytic leukemia (CLL) patient’s treatment options and provide a more in-depth understanding into their disease. Dr. Philip Thompson, a CLL specialist, reviews key tests that CLL patients should advocate for.

Dr. Phillip Thompson is an Assistant Professor in Medicine in the Department of Leukemia at The University of Texas MD Anderson Cancer Center. Learn more about this expert here.

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Transcript:

Dr. Philip Thompson:

I would say that I see a lot of patients that have previously seen an oncologist closer to home and then traveled to MD Anderson for a second opinion. And so, I can say that over the last three or four years, there’s definitely a significant change in the awareness of physicians in general about doing genetic testing for CLL.

So, in particular, almost everybody will get a FISH test, which I didn’t always see three or four years ago. And more patients are now having IGHV mutation status analysis done. The thing that I see that is very rarely done, though, is what we call next-generation sequencing, or NGS, that looks for mutations in individual genes, and most importantly, in the TP-53 gene that I mentioned.

So, I would – and the other thing that often isn’t done is what we call a carrier tag, which is a routine analysis of the chromosomes of the CLL cells. And it requires some special techniques for the lab to get it to work in CLL. But that can actually provide additional information compared to just FISH.

So, I would suggest to a patient, particularly if they’re gonna do a bone marrow biopsy on you, which is an invasive procedure, that you really try to get some clarity around what tests are going to be ordered on that beforehand. And if you’ve just been diagnosed and you’ve got early-stage CLL, you can make an argument about how many of these tests are absolutely necessary to start with. Because the biggest utility in these tests is in determining what type of treatment you’re going to have.

If you’re not immediately going to have treatment, they don’t necessarily change what your oncologist is going to do. They’re going to monitor you over time and see if your disease is getting worse or not. But I still think they’re useful to have the – a lot of them are useful, particularly the IGHV mutation status and FISH are useful to have at initial diagnosis. Because they give you a really good idea of what the biology of this disease is – this patient’s disease is like and how quickly they’re likely to progress, and that may change how frequently you monitor the patient.

But anyway, I would say it’s important to ask them what genetic testing you are gonna get. And that you ask – have an understanding of what can be ordered.

 And in particular, if you’re going to get treatment, you must ask for TP-53 sequencing, FISH for 17-P deletion, and IGHV mutation status because those three things are essential to determine the optimal treatment that you have. And you shouldn’t feel shy about asking, are those things going to be done.   

What Do Genetic Tests Reveal About My CLL Treatment Options?

What Do Genetic Tests Reveal About My CLL Treatment Options? from Patient Empowerment Network on Vimeo.

 
Genetic testing results can influence a chronic lymphocytic leukemia (CLL) patient’s treatment options and provide a more in-depth understanding into their disease. Dr. Phillip Thompson, a CLL specialist, reviews three important testing results that can impact treatment timing and approaches.
 
Dr. Phillip Thompson is an Assistant Professor in Medicine in the Department of Leukemia at The University of Texas MD Anderson Cancer Center. Learn more about this expert here.

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Transcript:

Dr. Philip Thompson:

So, there are three main things we look at before initiating treatment in a patient.

One is what we call the IGHV mutational status of the patient. And this basically splits people into types of CLL. So-called mutated or unmutated. And this is a relatively complex concept. Basically, what happens in normal B-lymphocyte development, so B-lymphocytes are part of your immune system. Their job is they have a probe on the surface of the cell that looks for invading microorganisms. And when they find an invader, this probe binds to the organism. And then the cell actually undergoes, as part of its normal development, a process of mutation so that it makes the best possible antibody to fight that infection. So that’s a normal process that the B-lymphocyte undergoes when fighting infections.

So, CLL can arise from what we call a mature antigen-experienced mutated B-cell, or it can arise from a naive B-cell that has never gone through that process, in which case, it will have an unmutated IGHV. Now, it’s kind of counterintuitive, but the patients with a mutated IGHV generally have better outcomes. That type of CLL is less proliferative, it doesn’t grow as fast, and it also tends to respond better to certain types of treatment. Particularly, it responds better to chemotherapy than patients with unmutated IGHV.

However, the difference between those two is less important if you’re getting some of the newer therapies. Particularly, it seems like if you receive BTK inhibitors, it doesn’t really matter if you have mutated or unmutated IGHV, patients are responding very well. But I like to know whether they have a mutated or unmutated IGHV because it’s helpful for giving the patient an expectation of how their disease is likely to behave biologically.

But also, if they have a mutated they may be a candidate for chemotherapy-based treatment. Whereas if they have unmutated IGHV, I don’t use chemotherapy for those patients.

 

The second thing is a test called FISH. And FISH looks for chromosome abnormalities. So, we have 46 chromosomes, 23 from our mother and 23 from our father. They contain all of our genetic information. And in malignant diseases, you can have major abnormalities in the chromosomes of the cancer cells. Not in the rest of your body, just in the cancer cells. And they happen because of errors that are made when the cells are replicating their chromosomes.                                                                 

So, in CLL, there are four common abnormalities that we look for in a test called FISH, and they tell us a lot about the patient’s prognosis. And there’s one in particular that we look at that has a major impact on our decision making, and that’s a deletion on Chromosome 17.

So, a missing piece of Chromosome 17. And the reason that that’s important is it tends to be an aggressive form of CLL. It also does not respond to chemotherapy, or if it does, the responses are very, very short-lived. So basically, that’s a contrary indication to receiving chemotherapy for your CLL when you should receive another form of therapy if you have a 17-P deletion.

And then, finally, we look at a type of – we look for individual gene mutations in the cells. And that’s different from IGHV mutational status, although the names are kind of similar.

So, in CLL, there are numerous genes that can be affected by mutations that alter the function of the gene. In some cases, it makes the gene non-functional; in some cases, it changes the function in some way that perturbs the normal functioning of the cell and contributes to the malignant transformation of that cell.

So, the most important one, again, relates to a gene called TP-53. So that’s the gene that is deleted if you lose a piece of Chromosome 17. It’s located on the P arm of chromosome 17. If you mutate that gene, it has the same consequences essentially for the cell as if you delete it by deleting a piece of the chromosome. And the two often go together, so you’ll have a 17-P deletion and a mutation of the TP-53 gene on your other Chromosome 17. Because remember, you have two chromosome 17s. So, if you lose both, it may be even worse than only having one. However, it does seem that if you only have a mutation on the TP-53 gene, but you don’t have a deletion on Chromosome 17, that the responses of those patients to chemoimmunotherapy are still really poor.

So, it’s very important to find out, do you have a TP-53 mutation as well as do you have a deletion on Chromosome 17 before you embark on treatment, particularly if that treatment is going to be chemotherapy. So, those are the three things that we look for before    we start any patient on therapy.

The Truth About the Causes of CLL

The Truth About the Causes of CLL from Patient Empowerment Network on Vimeo.

 What causes chronic lymphocytic leukemia (CLL)? Dr. Kerry Rogers shares facts and addresses common misconceptions about the causes of CLL.

Dr. Kerry Rogers is a hematologist-oncologist at The James Cancer Hospital and Solove Research Institute. More about Dr. Rogers here.

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Transcript:

Patricia:                      

Here we go. Dr. Rogers, let’s talk about facts and fiction around CLL. Here’s what we’ve heard from CLL patients. Are these fact or fiction? “Exposure to pesticides caused my CLL.”

Dr. Rogers:                 

So, this is a very difficult one, and I will preface this by saying I’m not actually an expert in environmental exposures. I am more an expert in CLL management. But, there is some evidence that exposure to pesticides, including Roundup, increases the risk for developing non-Hodgkin’s lymphoma, and there’s a class-action lawsuit against Roundup that my patients keep asking me about.

I think it’s really hard to say for any one person whether or not their cancer is caused by pesticide exposure. If it’s someone that sprayed Roundup in their garden a couple times, then no, I wouldn’t think so. If it’s someone that was bathing in it regularly, exposed to it on the farm all the time, then it might have contributed, but there’s usually more than one thing that goes into someone getting CLL, so I would never plant the entire blame for something on one particular exposure, but I do think it’s quite possible that pesticide exposure can increase a person’s risk for developing CLL and non-Hodgkin’s lymphoma.

Patricia:                      

This is probably applicable just to veterans. “I was exposed to Agent Orange, and it caused my CLL.”

Dr. Rogers:                 

So, the same stuff I said about pesticides applies to Agent Orange, but Agent Orange can be a factor in developing CLL. It is in the VA list of diseases associated with Agent Orange exposure. So, for anyone that was exposed to Agent Orange that developed CLL, I would really encourage them to go to the VA and get their Agent Orange intake interview because they are likely entitled to VA benefits because they have CLL and were exposed to Agent Orange.

Patricia:                      

Do you hear that often from your patients who were exposed to Agent Orange?

Dr. Rogers:                 

That they’ve gone to the VA? Yes. Actually, I have a couple people that – many of these people get care at the VA, which is also great, but I do take care of a couple of people who have VA benefits due to Agent Orange exposure who have CLL for sure.

I also have a couple people that, despite the fact that they were exposed to Agent Orange, didn’t feel like going to the VA and seeing if they could get benefits, and I think that’s very reasonable, too. Whether or not people wanna do that is an individual decision, but is definitely on the list of Agent Orange exposure-related diseases. And so, the VA could provide care, medications for CLL, and in some cases, other financial benefits, so for anyone who would like, I think contacting the VA if you have CLL and were exposed to Agent Orange is not a bad idea.

Patricia:

How about this one? “CLL is only a disease of the elderly.”

Dr. Rogers:

Oh. Well, that one is definitely not true. So, CLL is not really a disease of children. I’ve never seen someone under 18 with it, and of course, the median age of diagnosis is somewhere between 65 and 70, sort of around 65, so that means that there’s a lot of people less than 65 living with CLL.

I’ve seen people as young as 20, I’ve seen some people in their 30s, I see many people in their 40s and 50s, and also, part of this question is what do you consider elderly? I don’t really know that I consider people in their 60s elderly in many cases. So, people in their 90s are usually willing to accept that they’re elderly, but people in their 60s, often, I wouldn’t call them elderly, and I know you draw these age numbers to say you’re a senior citizen, but there’s more things that contribute to the word “elderly.”

So, I guess what I’d say is this is – CLL is definitely not exclusively a disease of the elderly. There are many people in their 40s living with this, and I’ve seen people as young as their 20s, and then, also, you gotta figure out for yourself where you’re gonna draw the line and say “elderly.”

Patricia:

Sure. How about this one? “CLL is genetic, and my children may inherit it.”

Dr. Rogers:

So, this is a very difficult question. Instead of saying CLL is genetic, I think what I would say is that CLL is heritable, meaning it can run in families.

And, the rough estimate is that 1 in every 10 people that are living with CLL have someone in their family that will also get CLL, so we know that it does run in families – not in every case, but many cases – and I think at least in terms of people I’ve seen with this, people come and see me, and they either say, “Oh yeah, sure, my cousin, my uncle, my parents, my brother – everybody had CLL.” Or, they’ll say, “Really? Someone else in my family could get this?” So, it becomes pretty clear who’s gonna have it in their family and who’s not, but it does increase the risk of your family members getting CLL.

The interesting part of that is as a CLL community, I think we have not done a very – or, we have not been able to pin down a gene that causes it. So, if you think about breast cancer, colon cancer, you can say, “Oh, someone has a BRCA mutation, the family needs to get tested, we can do something to avoid your kids getting breast cancer.”

But really, with CLL, they’ve done a lot of research looking at family cohorts – and, by “they,” I mean not me specifically, but other CLL researchers have done this – and really have not identified anything that’s saying, “Oh, if you have this gene, you’re gonna get CLL, you’re at risk for CLL,” so, we can’t say it’s genetic and there’s one gene it’s pinned on, although it might be genetic based on a constellation of genes or a gene we haven’t identified. So, I think that’s kind of interesting.

The other thing that I’ll say that’s really important when thinking about whether or not your family could be at risk for CLL is that even people that have very what we call unfavorable or high-risk CLL, with something like deletion 17p, other family members that have CLL end up having a pre-CLL condition called monoclonal B lymphocytosis, or 13q CLL, or 11q CLL, so they have a completely different genetic feature for their CLL, even though you can tell they’re in the family as people with CLL.

So, it’s not that the CLL genetic factors we use to predict how you’re gonna do with it are inherited throughout the family, just the risk for getting CLL. I think that’s important to realize.

The other thing is that unlike breast cancer, where you say, “Oh, this is in your family, you should get breast MRIs, you should consider a prophylactic mastectomy,” there’s not a good screening system for CLL, and since when it’s diagnosed, it’s observed, and there’s no known way that we have to prevent it, it’s not like you have to go and get your entire family tested because we don’t have a genetic test, and a screening is not as beneficial as it is in breast cancer where you can get a surgery to prevent yourself from getting the disease. Does that make sense? Okay.

Patricia:

Thank you. What are some of the things that you hear from your patients that we haven’t mentioned?

Dr. Rogers:

About CLL?

Patricia:

About the way they got it.

Dr. Rogers:

Oh, the way they got it. Hmm.

I think the most common things I hear from people that we haven’t mentioned are in either the exposure category, to things that aren’t known to cause CLL, or infections, like, “Oh, I had a really bad bout of influenza,” or “I got pneumonia, and then I got CLL.” I don’t know if these – I don’t know if any infections that are demonstrated to cause CLL.

Sometimes, the white count can go up when people have infections in response to that, because they’re still living immune system cells, so if people get diagnosed when they have an infection because they got their blood drawn or because their white count went up because they were sick, but that’s something common I hear. And so, it’s really hard to say, “Your bout of pneumonia isn’t why you got this,” but it is frequently how people get diagnosed with that, so I hear that sometimes.

Patricia:

What are the actual causes of CLL? What do we know?

Dr. Rogers:

So, CLL, like most blood cancers is – the way I like to think about it is that your blood cells are one of the most rapidly growing and dividing cells in the body.

You know how over the course of your lifespan, your skin sloughs off, your hair grows, you have to cut it? So, your blood cells divide and turn over within your body, and they’re really quite rapidly dividing, and when cells divide, they replicate their genetic material, and just because it happens so many times over the lifespan, they make mistakes and pick up mutations.

So, many of the mutations they pick up either cause that cell to die, which is fine, or cause your immune system to attack it as abnormal, which is fine. But, in some cases, the mistake or mutation they made when the cells were dividing causes the calls to become broken or mutated in a very specific way that makes them CLL. And, it’s probably not just one mutation; it’s probably a series of them that accumulate to cause CLL.

And so, some of these things are those things we test for in a FISH panel, like 17p is an abnormal genetic change that happened as these cells were dividing over the course of the person’s lifespan, but there’s probably more changes than that that go on, and eventually, the cells become CLL, grow out of control, and have the common features of CLL. So, that’s how I like to think about it.

And then, these questions of “Oh, did pesticides contribute? Did this contribute? Did Agent Orange contribute?” is really just about did those agents cause your cells to break or mutate more, or in a specific way that would make them CLL? So, a lot of things that cause cancers in general, and not just CLL or increased risks for cancers in general, are things that alter, break, or change DNA.

CLL Staging: What Does It Mean for You?

 

CLL Staging: What Does It Mean for You? from Patient Empowerment Network on Vimeo.

Dr. Kerry Rogers explains chronic lymphocytic leukemia (CLL) staging and how it can impact a patient’s prognosis, treatment options and overall care.

Dr. Kerry Rogers is a hematologist-oncologist at The James Cancer Hospital and Solove Research Institute. More about Dr. Rogers here.

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Transcript:

Patricia:

Let’s talk a little bit about how CLL is staged, Dr. Rogers.

Dr. Rogers:

So, unlike most cancers, where CLL is staged with CT scans or PET scans, the staging for CLL is actually remarkably simple, and I really like this because it limits the amount of testing you have to do for people, especially the people that might be just monitored for their CLL or observed. You don’t wanna put them through a lot of intensive testing they don’t need. So, the only two things you need to properly stage CLL are a complete blood count and a good physical exam.

So, in the United States, we use something called RAI staging, which is R-A-I staging, and before I launch into what it is, I will just say that even RAI stage 4 CLL is very treatable, and people do well for many years, so this is not the same as when you think about lung cancer or breast cancer staging, where stage 4 is a much worse spot than stage 1. The staging for CLL – all of it is still very treatable.

So, RAI stage 0 is when you only have an increase in lymphocytes, which is the CLL cells in the blood. Stage 1 is when you have increasing lymph nodes in addition to that. Stage 2 is an increased size of the liver or spleen. And then, if someone has anemia from CLL, then it’s stage 3, and stage 4 is if you have low platelets from CLL. So, 3 and 4 are indications that the bone marrow’s not working well due to CLL.

Patricia:

Dr. Rogers, it seems like CLL is a very manageable disease. What are you considering when you’re making a prognosis with a patient?

Dr. Rogers:

So, for many people, CLL is a very manageable disease. Like I said, some people have had CLL longer than I’ve been a doctor and have needed no treatment for it. However, there are people with CLL that go on to have a lot of difficulty from it, including not doing well with more than therapy or needing really new, advanced therapies, like something called CAR T-cell therapy.

So, for any individual person, you can never say how it’s gonna turn out for them, but we do use our experience taking care of lots of people with CLL to make an educated guess as to if this person’s gonna be someone that’s gonna expect to need a lot of treatment in their lifetime, or maybe no treatment in their lifetime.

And, the main things we look at in addition to just the staging or are they having symptoms or problems from CLL yet is molecular testing. So, these are genetic tests just on the cancer cells, so they’re not genetic tests that other people in the family get tested for, it’s just changes in the cancer cells, so that can give us a guess as to how long before people need treatment and how well they’ll respond to treatment.

And, I know a lot of people are probably already familiar with this, but there’s a particular chromosome change you can test for called deletion 17p, and that predicts a shorter time to needing treatment, needing more treatments in your lifetime, maybe going on to needing those advanced treatments like CAR T-cell therapy.

It used to be recommended that people with 17p get regular like-donor stem cell transplants, which, in some cases, is still done. And then, on the other end of the spectrum, there’s a chromosome change called deletion 13q, which predicts that in many cases, people don’t need treatment for many years and do very well. So, there’s a panel of chromosome changes that can predict where people are gonna fall on the spectrum.

The other chromosome change that’s become important is something called complex karyotype – and again, this is just in the CLL cells, but the karyotype is the arrangement of the chromosomes and these – the other tests I was talking about are chromosome changes picked up with a test called FISH. This is just looking at all the chromosomes, what they look like, and if there are three unrelated genetic abnormalities are more, it’s something called a complex karyotype, and it predicts people will fall in this category of needing more treatment or having more things to do with their CLL in their lifetime rather than not.

And then, the third thing that is really important is something called – and, this is gonna sound long – but, it’s immunoglobulin heavy chain gene mutational status, and mutations in the immunoglobulin heavy chain gene occur normally as these B cells mature, so people that are mutated have more mature cells that became CLL, and people that are unmutated have less mature cells, and people who are mutated that have more mature cells tend to have fewer problems from CLL in their lifetime, and there’s a few implications for CLL treatment for that category.

So, I kind of take all those things into consideration, and then, the other thing that I think is important to consider is newer molecular testing, but that’s still in development, so I think I’ll just end there for now in what I take into account.

Patricia:

I did want to ask one follow-up. Dr. Rogers, how often do you like to check in with your patients with CLL?

Dr. Rogers:

Oh, that’s an excellent question, because I think it really depends on how they’re doing.

So, people that have had a lot of changes in their CLL, like the white counts increasing, healthy blood counts going down, lymph nodes changing – then usually, I see them back more often, so I even see someone maybe six or eight weeks later if they have a lot of changes. And then, generally, people who are having changes in their CLL are taking treatment for CLL; I’ll see them at least every three months.

However, like I said, there are people who have had this CLL for decades with no changes in how their disease is, so those people I’ll see every six months, or even sometimes once a year, especially if it’s been 10 years and nothing has changed with the CLL. Even though I like them and enjoy seeing them, I’m sure they have things they’d like to do rather than coming to see me.