Tag Archive for: inflammatory markers

How Can Variable Patient Groups Be Addressed in CAR T?

How Can Variable Patient Groups Be Addressed in CAR T? from Patient Empowerment Network on Vimeo.

Can CAR T-cell therapy address variable patient groups? Expert Dr. Krina Patel from The University of Texas MD Anderson Cancer Center discusses variances in different myeloma patient groups, the KarMMa-3 study, and proactive advice for patients.

[ACT]IVATION TIP

“…if you are in a area, let’s say rural America where you don’t have access or you are in a minority population, African American, Hispanic, etcetera, or older, frail patients who are older that are considered vulnerable as well, absolutely make sure to talk to your doctors about these novel therapies because you still can get them safely and they will work. They can work. You just have to go to a center where they know how to adjust those types of therapies to make sure you get the best options out there as well.”

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Related Resources:

What Patient Types Are Good Candidates for CAR-T Therapy?

What Patient Types Are Good Candidates for CAR T-Cell Therapy?

Are CAR-T Clinical Trials Studying Use As a Frontline Therapy?

Are There Myeloma Trials Investigating CAR T for Frontline Therapy?

A Look at Promising Strategies to Improve CAR T-Cell Therapy Access

A Look at Promising Strategies to Improve CAR T-Cell Therapy Access

Transcript:

Lisa Hatfield:

Dr. Patel, how might the heterogeneity of patient populations impact the standardization and reproducibility of CAR T therapy outcomes across different clinical settings, and what initiatives are in place to address this variability?

Dr. Krina Patel:

Yeah, I think that’s a great question because again, this is a personalized therapy. So it depends on what your myeloma is like, the genomics, the genetics of your myeloma, how aggressive is it, plus your T cells, right? And so everybody’s genetic ancestry, etcetera, is very different. So the idea of a personalized medicine, more than just even across groups of people, it’s at the individual level. And I think when you talk about different races or ethnicities, we have seen some differences in our real-world data, in very relapsed/refractory patients, where people can get great response rates still.

So, for instance, Caucasian patients versus African American patients, our response rates are still high in the 80s and 90 percent, but the toxicity is a little bit higher in our African American patients. It’s still not high grade. It’s not anything that makes me say, I’m not going to give this, but the baseline inflammatory markers are a little bit higher. And so once we get the CAR T, our patients tend to get a little bit more CRS.

They end up in the hospital a little bit longer. Now, again, this is a multivariate analysis and we couldn’t find any other difference, but when we look at KarMMa-3, which is one of our big studies that led to ide-cel (idecabtagene vicleucel) [Abecma] being approved early, we actually had an outcomes of African American patients only that we looked at and that we presented just this past TCT, and response rates were actually a little bit better.

Again, you can’t compare them because the numbers aren’t there to power that to compare, but numerically the numbers were better in terms of response rate, in terms of progression-free survival, it was actually more months that it beat the standard of care and we didn’t see more toxicity.

And so I think we do need to look at these things and make sure there’s not one group of patients has a lower efficacy for some reason, and why is that and how can we improve that? And so far, we don’t really see that. And the other is the toxicity piece, to make sure that these therapies that do cause some strange toxicities that we’re watching and seeing who might be more vulnerable to those toxicities, who do we need to maybe even prevent, do prevention strategies for, but so far we haven’t seen it.

And then I think coming back to the individual, right?So again, all of us have these different T cells that have different mutations in them, and some folks, for some reason, even with less myeloma, their T cells just expand really fast and other folks, they don’t. And so in the future to get best outcomes, we need to see how we can turn the volume lower for those folks who have really sensitive T cells.

And for those who don’t, how do we, what else can we add in combination to actually increase those T cells so that they’re actually doing a better job at killing the myeloma, right? And including the microenvironment too. So I think there’s a lot of translational work as well as the epidemiology side of things to say, okay, how do we first diagnose the problem, find the problems, and then how do we figure out how to intervene to then improve outcomes for all our patients? I think the activation tip here is that if you are in a area, let’s say rural America where you don’t have access or you are in a minority population, African American, Hispanic, etcetera, or older, frail patients who are older that are considered vulnerable as well, absolutely make sure to talk to your doctors about these novel therapies because you still can get them safely and they will work. They can work. You just have to go to a center where they know how to adjust those types of therapies to make sure you get the best options out there as well.


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How Do Race and Ethnicity Impact CAR T Side Effects?

How Do Race and Ethnicity Impact CAR T Side Effects? from Patient Empowerment Network on Vimeo.

How are CAR T side effects impacted by race and ethnicity? Expert Dr. Sikander Ailawadhi from Mayo Clinic shares some research study results about CAR T response rates and disease progression in African American and Hispanic patients and solutions for clinicians.

[ACT]IVATION TIP

“…there are some differences by race, ethnicity, specifically for the side-effect profile, patients should be aware of it, and clinicians who are the CAR T specialists should be aware of it so that they can manage the side effects well in their patients.”

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See More from [ACT]IVATED CAR T

Related Resources:

How Can Equitable CAR T-Cell Therapy Access Be Increased?

How Can Equitable CAR T-Cell Therapy Access Be Increased?

How Can Information Disparities on Emerging Therapies Be Addressed?

How Can Information Disparities on Emerging Therapies Be Addressed?

Can Race or Ethnicity Impact CAR T-Cell Therapy Response?

Can Race or Ethnicity Impact CAR T-Cell Therapy Response?

Transcript:

Lisa Hatfield:

Dr. Ailawadhi, real-world data from one of the available CAR-T-cell therapies, ide-cel (Abecma), has shown some differences in the side effect profile and benefit by patient race and ethnicity. What is your take on this, and how do you utilize this in your clinical practice? And also, what do you think researchers should do next to learn more about how CAR T therapies affect different people?

Dr. Sikander Ailawadhi:

This is an extremely important question, looking at what is the data currently on the risks and benefits of CAR T-cell therapy in patients from different racial ethnic groups, and then how are we using that in the clinic today and where should the field go about research in this area. So, Lisa, you’ve correctly pointed out that this study that was published recently is based on some real world data from one of the CAR T cells available, ide-cel.

Now, I shouldn’t say that this is specifically to ide-cel, but basically, ide-cel has been around a little bit longer than cilta-cel (Carvykti), and so the real-world data on ide-cel was to the point that this racial ethnic analysis could be done, and it was reported. That said, we don’t know how cilta-cel would be. That data just does not exist. So, I’m not saying that this is applicable to cilta-cel or not, because at least this study was specifically for ide-cel because that data was mature enough to be reported. That was just a qualifier of this particular question.

Now, what that study showed was that some of the side effects, including CRS, the cytokine release syndrome, and certain markers that can be an accompaniment of CRS, like the ferritin or what’s called CRP, C-reactive protein, which are inflammatory markers. So, inflammatory markers were higher in African Americans, and the CRS was also higher in African Americans from that real-world data.

The other thing that it showed was that the response rates were lower in Hispanics, but the progression-free survival, meaning time it took for the disease to progress and require more treatment, was lower in African Americans or overall survival was same across the racial ethnic groups. So, side effects a little bit more in African Americans, and the immediate response, a little bit less in Hispanics, but overall outcome, similar across races. Now, this is important for us to know because African Americans tend to have certain inflammatory disorders more frequently, like even asthma is seen more frequently in African Americans.

So, CRS, which is an immune system mediated inflammatory response, I can imagine that some of it might be higher in African Americans. So, in our clinics, what we are doing is when we are monitoring the patients, every patient is getting monitored the same way, but when it’s an African American patient, we are putting a little bit more focus on those inflammatory markers that can sometimes start showing up even before the CRS happens. I don’t think the response rate portion of Hispanics that we’re really taking into account much because the overall outcome or the long-term outcome was not really different between races and ethnicities.

Of course, there needs to be much more research, so I think we need longer-term follow-up data, we need larger number of patient data, and what I alluded to in the very beginning, we do need data on cilta-cel also, which has not yet been presented, but we are hoping that it will come out very soon. So, my activation tip for this question is, that there are some differences by race, ethnicity, specifically for the side-effect profile, patients should be aware of it, and clinicians who are the CAR T specialists should be aware of it so that they can manage the side effects well in their patients.


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