Which Tests Are Essential to Diagnose and Treat Myeloma?

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Which Tests Are Essential to Diagnose and Treat Myeloma? from Patient Empowerment Network on Vimeo.

Several tests follow a myeloma diagnosis and continue throughout one’s care. Myeloma expert Dr. Saad Usmani provides an overview of these essential tests, including blood tests and cytogenetics, and how the results impact overall treatment options.

Dr. Saad Usmani is the Chief of Myeloma Service at Memorial Sloan Kettering Cancer Center in New York City. Learn more about Dr. Usmani, here.

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Transcript:

Katherine Banwell:

What tests are necessary to help understand a patient’s specific disease both at diagnosis and prior to treatment?

Dr. Usmani:

So, the testing includes – what’s the objective of testing – we do tests to help diagnosis to assess how much of cancer we’re dealing with and then what kind of cancer we’re dealing with. Even within a given cancer, how much cancer you have and what kind you have is important. Folks can have a little bit of cancer in terms of burden. But it can be aggressive in its nature. So, you can have King Kong at your door, or it could be the green giant just trying to serve up veggies. Whereas King Kong will bite your head off.

So, with that in mind, there are things that we do such as blood tests to see effects on blood counts, kidneys, liver. We also do certain blood tests to identify what kind of multiple myeloma a patient may have as an example. So, the kind of myeloma protein they’re secreting. The kind of light chain they’re secreting. Then urine tests are done to see if there are any proteins that are leaking through the kidneys if there is kidney damage. Then bone marrow biopsy to a) look at how much myeloma and b) what kind by specific testing that we do on the bone marrow biopsy. And then imaging to see what parts of the bone’s affected.

Katherine Banwell:

Great. I’m assuming that these tests will help with the opening of the stages of myeloma.

So, how is myeloma staged?

Dr. Usmani:

So, the staging of myeloma is still a work in progress. The reason why I say that is we have a good way of accessing how much myeloma a patient may have. But if we don’t combine it well with what kind or how aggressive it may be. So, staging in myeloma relies on two blood tests that are serum albumin and serum beta-2 macroglobulin.

And they help us give a good assessment of how much myeloma patients have. And maybe a little bit of information about whether patients may have a bit more aggressive kind. But then you overlay that with cytogenetic information from the myeloma cells that are from the biopsy as well as another blood test called LDH.

If patients have any of the quote unquote high-risk features, they are – along with a high level of beta-2 microglobulin, you stage them as stage 3. If they don’t have them, they’re stage 1. If they have some of the features, they’re kind of in between in stage 2. And that’s how we stage multiple myeloma.

Katherine Banwell:

You mentioned cytogenetics. What testing is involved in that?

Dr. Usmani:

So, bone marrow biopsy – it’s very broad. But there are two parts to it.

One part is getting the bone marrow aspirated where we insert a needle into the pelvic bone and get parts of the bone marrow – the blood inside the bones out. And look at how much percentage of plasma cells are there. What kind of surface markers or features they have.

And then we look at if those cancer cells have any chromosome abnormalities that are unique to myeloma. And some chromosome abnormalities can be high-risk.

What does high-risk mean? High-risk means if you treat patients in a certain fashion, they have a higher chance of relapsing or a higher chance of the myeloma coming back out of remission. So, we identify those features by way of looking at cytogenetics. And there are different techniques in which we can take a look at that.

Katherine Banwell:

And what are those techniques? There’s something called FISH, right?

Dr. Usmani:

Yes.

Katherine Banwell:

And flow cytometry and also next generation sequencing?

Dr. Usmani:

Yes. So, and there is also conventional cytogenetics. So, flow cytometry looks at the different proteins that are part of the surface of any cell – any blood cell for that matter. It could also be any other cell as well, not just blood cells.

But in this particular case when we do flow on the blood marrow aspirate, we’re looking for unique features of those myeloma cells. But that does not tell us anything about the chromosomes. Conventional cytogenetics is the old fashion way. It’s a 40 – 50-year-old technique in which you make the cells in a test tube. You make those cells go through cell division. Each human cell has 46 chromosomes or 23 pairs. And when the cells are dividing, those chromosomes kind of line up in the center.

And the old fashion technique of conventional cytogenetics was take a look at the cells when those cells – when the chromosomes are aligned, and see if some parts of the chromosomes are missing or one chunk of one chromosome has attached to the other. That’s the old fashion way. The FISH technique, what it does is it’s geared toward identifying specific abnormalities.

And one part of that particular protein or molecule that goes and attaches to that chromosome has a color-coded probe. So, you can see within a cell different colors light up. And based on those unique features, you can identify “Okay. This cell over here is missing a part of chromosome 17. Or this part of chromosome 14 is attached to chromosome 4.” That’s FISH. So, FISH is very specific. Conventional cytogenetics is not. Next-generation sequencing, there are – that’s a broad term.

You can measure different types of nucleic acids: RNA versus DNA. And those different techniques identify specific – they can identify specific mutations in a cancer cell.

So, each of these techniques provide different layers of information for our myeloma patients. 

How Does Essential Testing Affect Myeloma Care and Treatment?

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How Does Essential Testing Affect Myeloma Care and Treatment? from Patient Empowerment Network on Vimeo.

 Why is it important to ask about essential testing for your myeloma? Find out how test results could reveal more about your myeloma and may help determine the most effective care for your individual disease.

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Transcript:

Why should you ask your doctor about essential myeloma testing?

When a patient is diagnosed with myeloma, they typically undergo a series of tests that aid in diagnosing and staging their individual disease. The standard tests include:

  • Blood Test
  • Urine Test
  • Bone Marrow Biopsy, and
  • Imaging

As research in the field evolves, genetic profiling via more in-depth cytogenetic testing is increasingly common to further classify your myeloma. This testing often identifies unique biomarkers of the myeloma, such as translocations or changes in chromosomes.

So why do the results of these tests matter?

  • The presence of certain biomarkers can indicate a patient is low-risk, which can suggest a more positive prognosis.
  • There are certain biomarkers that indicate high-risk myeloma, meaning an aggressive treatment approach may be more effective.

Knowing your risk in myeloma is useful to your healthcare team when choosing a treatment approach or may help in determining if a clinical trial might be right for you.

How can you Insist on the best care for YOUR myeloma?

  • First, always speak up and ask questions. Remember, you have a voice in YOUR myeloma 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 genetic testing for risk stratification 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 myeloma and access tools for self-advocacy, visit powerfulpatients.org/myeloma 

What Should You Ask Your Doctor About Myeloma Testing?

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What Should You Ask Your Doctor About Myeloma Testing? from Patient Empowerment Network on Vimeo.

Testing and test results may affect your myeloma care and treatment. Dr. Nina Shah, a myeloma expert, shares key questions to ask your doctor about testing and reviews testing techniques for myeloma. 

Dr. Nina Shah is Associate Professor of Medicine in the Fepartment of Medicine at the University of California San Francisco (UCSF) and treats patients at the Hematology and Blood and Marrow Transplant Clinic at UCSF Helen Diller Family Comprehensive Cancer Center. Learn more about Dr. Shah, here.

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Transcript:

Katherine Banwell:

If a patient wants testing beyond the standard, what should they be asking their doctors for?

Dr. Shah:

Well, thankfully a lot of these tests can be done as a standard. We actually have some approved testing for it. So, the most important thing is to ask the doctor at all. For example, the patient may ask, 1.) “When will my next bone marrow biopsy be?” and 2.) “When I get that bone marrow biopsy, will you be looking at cytogenetics and FISH?” and 3.) “When you get the bone marrow biopsy, will you be also looking for minimal residual disease?” And finally, “What technique will you use to look for that minimal residual disease?” There are different ones that the patients might find useful to know about.

Katherine Banwell:

What are some of the different techniques?

Dr. Shah:

There are a variety of ways that we can look for minimal residual disease. One of them is called flow cytometry. What that is is you send all the cells that are in the bone marrow through a chute, and in that chute you can sort of detect one or however many cells that are – that have a specific characteristic on their cell surface.

You think of it as a bunch of balls with lollipops sticking out of it. And based on the characteristics of those lollipops, you can tell if there are any plasma cells or myeloma cells. Another thing we do with minimal residual disease, another technique, is called the next-gen sequencing or NGS.

And for that, we need to know the specific DNA sequence that is very personal to your myeloma cells. So, your particular plasma cell or the cancer cell will have a sort of sequence, a specific sequence that can be identified when you’re first diagnosed. And if you have access to that tissue, that can be sent off to the company, and they use that as sort of a template or a measure – an individual identification. And then, they scan the subsequent bone marrow samples against that to see if there’s any sequence that matches that original one, and that’s the way you can detect one in a million positive cells, if there are any. 

How Is Minimal Residual Disease (MRD) Testing Used in Myeloma Care?

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How Is Minimal Residual Disease (MRD) Testing Used in Myeloma Care? from Patient Empowerment Network on Vimeo.

Myeloma expert Dr. Nina Shah explains minimal residual disease (MRD) and how the results of this test may impact patient care and treatment.

Dr. Nina Shah is Associate Professor of Medicine in the Fepartment of Medicine at the University of California San Francisco (UCSF) and treats patients at the Hematology and Blood and Marrow Transplant Clinic at UCSF Helen Diller Family Comprehensive Cancer Center. Learn more about Dr. Shah, here.

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Transcript:

Katherine Banwell:

What is minimal residual disease testing, and when should it take place?

Dr. Shah:

Minimal residual disease is exactly what it sounds like. It’s the disease that you can’t see under the microscope, but it’s still there.

And I sort of equate it to the little deep food particles that are in a pot after you clean it and really, really scrub it, but still, something is in there. And that’s what it is for myeloma. And really, that depends on how sensitive your test is. We now know we can test for at least one in a million cells by some advanced techniques, and we like to test to see if there’s any disease left after certain treatments are done – for example, after a patient undergoes an autologous stem cell transplant.

Katherine Banwell:

What impact do results have on care decisions?

Dr. Shah:

Minimal residual disease testing can be useful for patients to understand the true burden of their disease. For example, it may be that there’s no more M-protein in the blood, or the light chains are normal, or even the bone marrow showed no plasma cells. But the minimal residual disease testing may show that, in fact, there are a few cells still in there, and that can help patients to decide, “Yes, I want proceed with maintenance therapy,” for example, or “No, I would not like to.” Although, we generally recommend it, patients like to have as much information as possible to make their decisions. 

How Are Cytogenetics Used in Myeloma Care?

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How Are Cytogenetics Used in Myeloma Care? from Patient Empowerment Network on Vimeo.

Myeloma expert, Dr. Nina Shah, explains cytogenetics and how results of these tests affect care and treatment for myeloma patients.

Dr. Nina Shah is Associate Professor of Medicine in the Fepartment of Medicine at the University of California San Francisco (UCSF) and treats patients at the Hematology and Blood and Marrow Transplant Clinic at UCSF Helen Diller Family Comprehensive Cancer Center. Learn more about Dr. Shah, here.

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Transcript:

Katherine Banwell:

What is cytogenetics, and how is it used in myeloma patient care?

Dr. Shah:

We use the term cytogenetics and FISH sort of interchangeably, and really what it is, is the DNA characteristics of the bad plasma cells. So, the myeloma cells, and a lot of them may have changes in their DNA that are what we call clonal, meaning that they’re in a significant percentage of those cancer cells, or they might be non-clonal, which are less significant. But it’s the way the DNA is put together or maybe cut and pasted so that it changes the characteristics and maybe the aggressiveness of the disease.

Katherine Banwell:

What is the goal of this in-depth testing? Are there specific markers you’re looking for?

Dr. Shah:

When we look for things like cytogenetics and send FISH testing, we look to see if patients have changes that might make their disease may be more aggressive.

For example, it may cause their plasma cells, the myeloma cells, to grow faster or more aggressively. So, we look for changes that might, for example, have a deletion of a certain chain that puts the brakes on tumors, or it may have a translocation, which is when the chains sort of do-si-do together and that makes the cells grow faster. 

How Does Myeloma Testing Affect Care and Treatment?

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How Does Myeloma Testing Affect Care and Treatment? from Patient Empowerment Network on Vimeo.

What is cytogenetic testing in myeloma? Donna Catamero, a nurse practitioner specializing in myeloma, describes this in-depth testing, including the FISH test, and how the results impact the care of patients.

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Transcript:

Katherine:

Blood and urine tests, bone marrow biopsy and imaging tests are all standard following a myeloma diagnosis, but what about more in-depth testing?

Because the terminology around biomarker testing varies, can you help break this down for patients, and how this in-depth testing is referred to in myeloma?

Donna:

So, biomarkers is a term that is commonly tossed around in many different cancer diagnoses and it means different things. But in general, it’s characteristics that can inform us about a diagnosis, about a patient’s prognosis and about their response to treatment. So, this can include things that we measure in the bloodwork, in the urine, even imaging. These are all things or markers that we look at to determine a patient’s either, like I said, response or risk stratification.

Katherine:

What about cytogenetics? What is that exactly and does that fit under the umbrella of biomarker testing?

Donna:

Yeah, so cytogenetics is a genetic snapshot of a patient’s cancer. So, it will give us a sense of how the disease will – the characteristics of how it will behave. But again, it’s just a snapshot and it’s not a precise science but certain mutations or certain genes will kind of inform us like “This might be maybe a more aggressive form and we need to do X, Y and Z.”

Katherine:

Which of these more in-depth tests are necessary in myeloma? Let’s start with the FISH test.

Donna:

So, FISH is a cytogenetic technique. So, what we do is, when we do the bone marrow, we send that off and we look at the genetics. Like I said, it’s a snapshot. And certain mutations will put patients in different risk stratifications, so we normally do this at the time of diagnosis and then with each relapse.

Katherine:

It seems that all of the test results can aid in determining outpatient’s risk. So, why is risk stratification so important?

Donna:

So, risk stratification is important.

It will give us a sense of how a patient might respond to certain treatments. Maybe a patient won’t respond as well to a stem cell transplant as someone with standard risk. So, we take this into account, but in this current time, in 2021, we don’t typically change our treatments according to risk. That’s why clinical research is very important because we’re studying right now patients with high-risk cytogenetics, do they do they better on certain therapies.

Katherine:

How do the results of these tests affect treatment choice and prognosis?

Donna:

So, someone who might have high-risk cytogenetics, we might want to be maybe more aggressive with our therapy. So, we might change how we want to maintain a patient. Usually, after a stem cell transplant, we give patients maintenance therapies. So, patients who have high-risk disease, we might change our strategy and have a more aggressive regimen in that maintenance setting. And with patients with higher risk, we probably will monitor them very, very closely in case – looking for signs for relapse. 

What Standard Testing Follows a Myeloma Diagnosis?

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What Standard Testing Follows a Myeloma Diagnosis? from Patient Empowerment Network on Vimeo. 

What tests will you have following a myeloma diagnosis? Are there additional tests you should request? Dr. Joshua Richter provides an overview of key testing for myeloma and why each test is necessary.

Dr. Joshua Richter is director of Multiple Myeloma at the Blavatnik Family – Chelsea Medical Center at Mount Sinai. He also serves as Assistant Professor of Medicine in The Tisch Cancer Institute, Division of Hematology and Medical Oncology. Learn more about Dr. Richter, here.

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Transcript:

Katherine:

What standard testing follows a myeloma diagnosis?

Dr. Richter:

So, the standard testing that follows a myeloma diagnosis is multifaceted. So, the first one is blood work. And we draw a lot of blood tests to look at the bad protein that the cancer cells make. So, we send tests like a protein electrophoresis which tells us how high that bad protein is. We send immunofixation. That test tells us what type of bad protein it is. You’ll hear names like IgG kappa and IgA lambda.

These are the different types of bad proteins made by myeloma cells. Oftentimes, we’ll send urine tests to find out how much of that bad protein that was in the blood is coming out in the urine. We will, typically, do a bone marrow biopsy. It’s a test where we put a needle into the back of the hip bone to look at the marrow itself. And we’ll use that marrow to figure out how much myeloma there is, any other characteristics like the genetic changes in those cells.

The other big thing is imaging. So, the classic imaging that we do with myeloma is something called a skeletal survey. It’s, basically, a listing of X-rays from head to toe. But nowadays, we have newer techniques, things like whole body low-dose CAT scans, something called a PET-CT scan, and MRI scans. And your care team may have to figure out which one is right for you at what given time.

Katherine:

Mm-hmm. Are there additional tests that patients should ask for?

Dr. Richter:

Absolutely. One of the most important things from myeloma has to do with the genetic risk stratification.

So, for almost all cancers, the staging has a very big impact. And people will often think of cancer in stages I, II, III, and IV, and they’re managed very differently depending upon what stage it is. Myeloma has three stages, stage I, II, and III. But the most important thing is, actually, beyond the staging is what’s called the cytogenetics risk stratification. So, it’s really important when the bone marrow is sent to be sure that it is sent for, kind of, advanced techniques. Because you really want that snapshot of exactly what the genetic profile is, because that gives us information of A) how to treat, and B) prognostic, you know, who will tend to do better or worse based on this information. And even though that may not tell us which drugs to use, specifically, it may say, should we do something like a transplant or not? Should we consider a clinical trial early or not?

Katherine:

I see. How do test results affect treatment choices?

Dr. Richter:

So, test results can affect treatment choices in a number of ways. Probably, the most common one is thinking about the routine blood tests like your CBC or complete blood count and your chemistry, which looks at things like your kidney function. Some drugs tend to have more toxicity to the blood counts. So, if your blood counts are very low, we may choose drugs that don’t lower the blood counts very much.

Kidney function which we, usually, measure by something called the creatinine. Creatinine is made by the muscles and cleared out by the kidneys. So, if your kidneys aren’t working very well, you don’t pee out creatinine, and that creatinine level will rise in the blood. If your creatinine level is high, we may choose certain drugs that don’t affect the kidneys or not metabolized or broken down by the kidneys.

The genetic studies that we use – we’re not quite at this base yet where we can say, if you have this genetic abnormality in your myeloma, we should use this drug except there’s some really great data on the cutting edge about a drug called venetoclax.

Venetoclax is a pill that’s used to treat other diseases like lymphoma and leukemia. And it turns out that people who have what’s called a translocation (11:14) which means part of the 11th chromosome and part of the 14th chromosome in the cancer cells swap material.

Those people respond amazingly well to venetoclax. So, we’re starting to have what we would call precision medicine where we find your genetic abnormalities, not that you got from your parents or passed to your kids, but the genetics inside the tumor cells to tell us which treatments will work best for you.

Essential Imaging and Chromosome Tests after a Myeloma Diagnosis

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Essential Imaging & Chromosome Tests After a Myeloma Diagnosis from Patient Empowerment Network on Vimeo.

Charise Gleason, a nurse practitioner, explains why tests such as bone marrow biopsy, FISH test and full-body imaging are considered essential for patients after a myeloma diagnosis.

Charise Gleason is a nurse practitioner specializing in myeloma and serves as the Advanced Practice Provider Chief at Winship Cancer Institute of Emory University. Learn more about Charise, here.

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Transcript:

Charise:                       

The essential testing that a myeloma patient should undergo following a diagnosis is – obviously, you’ve had those diagnostic test labs, the 24-hour urine, some scans, but the specific things that we need are a bone marrow biopsy.

That includes cytogenetics and FISH, and we can talk a little bit more about that. You also want full-body imaging. We used to always use a skeletal survey, which was an X-ray of the long bones. But, really, the standard of care now is a whole-body scan.

So, depending on what your oncologist or your institution has, that would be a full-body CT scan, a PET-CT scan, or a full-body MRI. So, one of those tests is recommended. It’s not unusual if you have a PET. Like our institution, we use PET-CT. So, for a newly diagnosed patient, we’re also going to get an MRI of the spine for a further snapshot.

What we’re looking for with a full-body imaging is we want to make sure that there aren’t any lytic lesions.

So, with an X-ray, you have to have about 30 percent bone loss before it’s going to show up on an X-ray. So, those traditional X-rays that we used to use could actually miss an active lesion. So, in that diagnosis, we want to know that there is no active myeloma. And those other scans are going to be more specific to that.

So, the cytogenetics of a bone marrow biopsy are going to tell us more about the biology of the disease. So, cytogenetics actually grows out the pairs of cells. And so, that’s why that portion of the test can take a while to get back.

At our institution, it can take two to three weeks, because you’re actually growing out those cells to look at the chromosomes. And remember these are chromosomes, or genes, of the plasma cells. And so, we’re looking for those abnormalities that might be present. So, you think about it more for the biology of the disease.

When we’re looking at FISH, we’re also looking… That test shows a little bit different. It comes back quicker. It shows two different phases of cell changes.

And so, it will tell us about chromosomes as well. But do you have any additional chromosomes – so, that would make it a hyperdiploid narrow. It tells us if there’s a loss of a chromosome – so, you’re missing one, a hypodiploid. It also tells us about translocations – so, when you’ve had a piece of a chromosome change and go to another cell. And so, that, for instance, would be like that translocation t(11;14) or translocation t(4;14). So, it’s essential to have that testing to tell us about that, because it helps guide treatment. And as we talk more about targeted therapy, these things really can come into play.