Tag Archive for: CAR-T cells

What Helps Determine a CLL Patient’s Treatment Options?

What Helps Determine a CLL Patient’s Treatment Options? from Patient Empowerment Network on Vimeo.

What guides a CLL treatment choice? Dr. Catherine Coombs discusses genetic mutations and factors that may help determine a CLL patient’s therapy .

Dr. Catherine Coombs is an Assistant Professor of Medicine in the Division of Hematology at The UNC Lineberger Comprehensive Cancer Center. Learn more about Dr. Coombs here.

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Transcript:

Katherine:

There’s not necessarily a one-size-fits-all approach to treating CLL, so how do you decide which treatment is right for a patient?  

Dr. Coombs:

I always look at their underlying disease biology. There’s a couple really important tests that I send for all of my CLL patients by the time that they need therapy. The first is to see what their underlying cytogenetics and molecular findings are. There are certain good findings, and then certain bad findings.  

One of the bad findings is having a deletion in the 17th chromosome in the short arm of that chromosome. The chromosomes are the big pieces of DNA within everyone’s cells. There are findings that are common in CLL: a 17p deletion is a poor prognostic feature. There’s a separate test where we can actually identify mutations in a gene called TP53. And these behave largely the same as 17p deletions, so I always check for both. It’s two different tests.  

Oftentimes patients have both of these findings: a 17p deletion and a TP53 mutation. But sometimes you can have the mutation without the deletion and vice versa. That is one finding that’s important when talking about different therapies. The other really important prognostic test is the IGHV gene mutation status. This is another specialized sequencing test. It looks to see if the patient’s heavy chain, if their immunoglobulin protein has undergone something called somatic hypermutation or not.  

It’s actually good to be mutated. What we know about people who are mutated is that they typically have better responses to most therapies and their disease typically is one that grows slower. So, I use those factors and then I have a conversation with the patient. The two main treatment classes that I spoke about – so the BTK inhibitors, those work actually really well and even the people with these bad prognostic features.  

So, people with the 17p deletion, people with the TP53 mutation, they can have disease control for six plus years on a BTK inhibitor, which is really good.  

That was not the case a decade ago when we didn’t have these drugs. That’s something that’s been hugely beneficial for our patients. The venetoclax/obinutuzumab regimen, that still works when people have the 17p or the TP53, but it probably doesn’t work as well.   

I’d mentioned the median time for disease to come back hadn’t been reached yet. It had been reached for that poor risk subset. The expectation for people with that poorest marker is that the median PFS, progression-free survival. So, again, when after someone starts therapy, when the disease then progresses is 49 months. It kind of gives me a rough estimate of, “Gosh, these are your therapy options and based on your underlying biologic factors unique to your disease, this is what you can expect out of therapy A or therapy B.”  

The mutated or unmutated IGHV, similarly, those BTK inhibitors work extremely well, even in people with the bad unmutated finding. I think those are always an option. The other treatment is an option, but the people with that bad finding do have a shorter time until they progress of just under five years.  

Diffuse Large B-Cell Lymphoma (DLBCL) Treatment and Research News

Diffuse Large B-Cell Lymphoma (DLBCL) Treatment and Research News from Patient Empowerment Network on Vimeo.

What’s the latest diffuse large B-cell lymphoma (DLBCL) treatment and research news? Dr. Jean Koff explains study findings shared at the recent American Society of Clinical Oncology (ASCO) 2021 meeting and what they could mean for the future of DBCL treatments.

Dr. Jean Koff is an Assistant Professor in the Department of Hematology and Oncology at Winship Cancer Institute at Emory University. Learn more about Dr. Koff, here.

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Transcript:

Katherine Banwell:

Cancer researchers came together recently to share findings at the annual American Society of Clinical Oncology meeting. Also known as ASCO. Are there highlights from the meeting that patients should know about?

Dr. Koff:

Well, I think at every meeting, there are lots of exciting updates to possible treatments for DLBCL. I think with the recent ASCO meeting, what a lot of researchers and clinicians are excited about are treatments in the relapse setting for DLBCL. So, there may be shifts where we are more likely to use immunotherapies known as CAR T-cells rather than what we have standardly used for patients who have relapsed after their frontline therapy.

So, that’s one of the exciting updates and we’re eager to see more details on this data. But one of the other exciting areas that we’re following closely in and ask were there several updates are a newer class of drugs, a type of immunotherapy known as fites. And these are immunotherapies that help to target the lymphoma by binding to a marker on the lymphoma tumor surface and recruiting your own immune system to attack the lymphoma. And so, we’re getting more results from clinical trials from lots of these types of agents that are showing very promising results in patients who have relapsed DLBCL.

Katherine Banwell:

What are you excited about when it comes to DLBCL research?

Dr. Koff:

So, I’m very excited about what we call precision medicine.

Which is matching a variety of treatments that we have to what is best for an individual patient. Based on the factors we talked about, like the patient level factors, but more importantly the tumor level factors. Things like gene abnormalities or even abnormalities in the patient’s immune system. We’re still in the infancy of really getting a good understanding of how these molecular factors might be matched to an ideal treatment. But that to me is really the future is matching these patients based on their tumor profiles with a treatment that is the most likely to control the lymphoma, get rid of the lymphoma and offer patients a cure.

What Could Emerging AML Treatment Approaches Mean for You?

What Could Emerging AML Treatment Approaches Mean for You? from Patient Empowerment Network on Vimeo.

In the changing landscape of acute myeloid leukemia (AML) research, how could emerging treatments impact care for patients? Dr. Pinkal Desai shares information about combination therapies, immunotherapy, and clinical trials, and explains the value of MRD in tracking AML response.

Dr. Pinkal Desai is Assistant Professor of Medicine at Weill Cornell Medical College and a hematologist specializing in acute myeloid leukemia (AML) at Weill Cornell Medicine. Learn more about Dr. Desai, here.

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Transcript:

Katherine:                  

Are there emerging approaches for treating AML that patients should know about?

Dr. Desai:                   

So, there are several, and this is where there’s lots of lots of new drugs that have been approved. A lot of drugs in the pipeline. And within the categories, you can divide up where the advances are being made in several categories. So, the first one is, can you make a better induction regimen? So, how can you combine chemotherapy or hypomethylating agent plus venetoclax combination?

Can you add more targeted agents to these bad points to improve the chances of remission and to keep the patients in remission? So, that’s one aspect of it, that this is important.

There’s obviously this whole concept of immunotherapy of AML, where there’s a lot of antibodies treatment or drugs that affect the immune modulation that are being used both in up-front leukemia, in many times in the older patients, itself. There are clinical trials, obviously.

And also, in the relapse setting, there are CAR-T cells being used in leukemia therapy in the relapse setting. This is important, and a lot of new drugs are being used in the relapse setting. So, there’s this whole new sort of portfolio of clinical trials and treatment options for patients.

And the third aspect, which is, I would say, very important and as important as using better drugs, is to be able to quantify how the patients are responding to these treatments. Because we don’t want to start treatment, and then be blind about the kind of responses they’re getting.

There’s a whole new concept, what we call MRD measurements, or minimal residual disease, or measurable residual disease, MRD monitoring. That’s very important. So, when a patient starts with chemotherapy, and then you have subsequent bone marrows, even if they’re in remission, the quality of remission matters. The amount of MRD or amount of leukemia that’s left behind matters. And how do we direct our treatments to clean up that MRD? And how do we monitor this MRD, so that we can see what happens in the future? Many times, MRD can tell us that a patient’s going to relapse six months later. And how do we use that information?

So, these are very important aspects of monitoring of treatment that is important, and to measure MRD, not just by looking at the cells themselves, but using the patient’s own signature of molecular mutations that we found at baseline at the time of diagnosis. And how do we keep an eye on that?

This is another new world and new ways to figure out how best to use new drugs, maintenance approaches, better consolidation approaches, and how do we use MRD to mix all of these together to get the best possible outcome for these patients.

I think we’ve seen tremendous progress in leukemia, just over the last five years. We went from pretty much having two drugs to treat leukemia, chemotherapy, 7 and 3, and some hypomethylating agents, to a flurry of 15 new approvals. We now have targeted therapies. We have new clinical trials. I’m very hopeful that the combination of all of the things that we’re talking about, how to monitor patients, how to best utilize stem cell transplants. We’re entering a new age in leukemia, and I’m hopeful that with the advent of all of these drugs and what we know about leukemia, we can actually have a very good shot now to improve cure rates in leukemia.

How Could Emerging CLL Treatments Impact Your Care?

How Could Emerging CLL Treatments Impact Your Care? from Patient Empowerment Network on Vimeo.

In the changing world of chronic lymphocytic leukemia (CLL) research, how can emerging treatments impact care for patients? Dr. Jennifer Woyach shares information about targeted therapies, immunotherapy and clinical trials, and explains why she is hopeful about the future of CLL care.

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:                  

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 10 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.