Tag Archive for: KarMMa-9

What CAR T Research Is Ongoing to Improve Treatment Response?

What CAR T Research Is Ongoing to Improve Treatment Response? from Patient Empowerment Network on Vimeo.

 How can CAR T treatment response be improved with research? Expert Dr. Krina Patel from The University of Texas MD Anderson Cancer Center discusses the CARTITUDE, KARMMA-9, and LEGEND studies and proactive patient advice about bispecific therapy and CAR T.

[ACT[IVATION TIP

“…before you start bispecific therapy, talk to your doctor about CAR T. And the reason I say that is that when you get a bispecific therapy, and currently that is not a fixed duration therapy, it is a continuous therapy. So patients are on it until they relapse. And the problem is that once you relapse on that T-cell therapy, your risk of losing BCMA, losing the antigen is much higher. There are mutations that we’re seeing that most patients get.”

Download Guide | Descargar Guía

See More from [ACT]IVATED CAR T

Related Resources:

What Is the Impact of CAR T Therapy Access Barriers on Patients?

What Is the Impact of CAR T-Cell Therapy Access Barriers on Patients?

What Are CAR T Therapy Requirements for Care Partners?

What Are CAR T-Cell Therapy Requirements for Care Partners?

CAR T-Cell Therapy Patient Eligibility | What Patients Should Know

CAR T-Cell Therapy Patient Eligibility | What Patients Should Know

Transcript:

Lisa Hatfield:

So, Dr. Patel, given the risk of relapse following initial CAR T therapy, what approaches are being investigated to enhance the persistence and durability of CAR T-cell responses in patients? I know there are a lot of theories out there saying things like antigen loss might be an issue, the loss of the target BCMA, T-cell exhaustion, the environment of the bone marrow, what of those theories are being investigated or looked at?

Dr. Krina Patel:

Yeah, I think without causing too many issues with why we think CAR T is so great, where it’s a one-and-done, right? That gives people this wonderful time off. In the relapsed/refractory setting, I think our goal is can we use CAR T to cure, right? That is the ultimate question. And, again, with cilta-cel (ciltacabtagene autoleucel) [Carvykti], with the original data from the LEGEND study, which was the original study in China, those patients had a little bit less therapy than CARTITUDE. However, there are about 15 percent of patients that are six years out from their CAR T still in remission, right?

And so that gives us a little bit of hope that maybe we’ll have a small tail and a small number of patients that are cured from our current CAR T approaches. But the question is, how do we now increase that tail and make it more like lymphoma? And then hopefully, 90, 100 percent of patients eventually, how can we, how can you get everyone cured? And so I think it comes down to myeloma is not the same for everybody, right? So you have our high-risk patients versus our standard-risk patients. And I think the strategies are going to be different for those two patient populations.

They already are in the way we treat patients with even induction therapy and maintenance and consolidation. We tend to be much more aggressive with folks who have high-risk disease versus those who don’t. And so, I think the biggest studies right now that are looking at this are really the combination studies. And so looking at CAR T followed by some type of maintenance, but fixed duration maintenance. So CARTITUDE 5 and 6 and KarMMa-9, these are all the studies of the BCMA CAR Ts in frontline. All of them will have maintenance afterwards, but it seems to be that they’re going to be two years of LEN maintenance and that’s it, nothing after that.

So LEN, lenalidomide (Revlimid), we know that it activates T cells. It activates other immune cells like NK cells in the body, even B cells. And so when you get cytokine release syndrome from the CAR T, you’re already making more of these immune cells and activating them. And now you’re going to have lenalidomide in there to kind of keep that going, right? And so that could help with this, not persistence of the CAR T itself, but persistence of better immune cells that can actually keep your myeloma down, right? So I think that’s one way.

The other way is some of the new therapies like CELMoDs. So these are sort of the newer version of lenalidomide and pomalidomide. They tend to have more immune effect than the other two drugs. So there’s studies looking at other CAR Ts, so a different target, right? So we talked about antigen loss. If you’ve lost BCMA, then what do we do?

Well, there’s other targets like GPRC5D. So a couple of the studies are looking at GPRC5D-CAR-T plus mezigdomide, which is one of the CELMoDs, or another arm is iberdomide, which is the other CELMoD, and looking at different doses without causing too many side effects, but still helping the T cell keep going, all kinds of things going on there. So those are some interesting studies.

And one of the cohorts, it’s actually using a GPRC5D-CAR-T with a BCMA bispecific after, that’s combinations. So now you’re targeting two different antigens and you’re using T cells in two different ways, right? And again, it’s fixed duration so that it’s not forever, but after a certain period, hopefully, we fix the bone marrow and we’ve killed enough myeloma that hopefully it won’t come back.

And so I think all of those are different strategies for the T-cell exhaustion to help with that, to hopefully keep from getting antigen loss, or if someone does have antigen loss, figuring out a way to go around it. And then the microenvironment I think is the biggest one, is how do we find cytokines and other things that can give us a bone marrow microenvironment that makes it really inhospitable for that myeloma to ever come back again.

So there are early Phase I studies looking at some of this, but I think down the line, that’s really what it will be, that once people go into their stringent CRs, MRD undetectable, now what can we do to keep that bone marrow from ever letting it grow again? And I think those are some interesting studies in the future.

Lisa Hatfield:

Okay. Thank you. So some patients are asked questions about the sequencing, and you’d mentioned different therapies. So I’ll ask this really quickly as follow-up, do you have any recommended or are there recommended sequencing of these different therapies like CAR T, then bispecifics, then CELMoDs, not all of them are FDA-approved at this point, but what are your thoughts on sequencing of those therapies?

Dr. Krina Patel:

So my activation tip here is that before you start bispecific therapy, talk to your doctor about CAR T. And the reason I say that is that when you get a bispecific therapy, and currently that is not a fixed duration therapy, it is a continuous therapy. So patients are on it until they relapse. And the problem is that once you relapse on that T-cell therapy, your risk of losing BCMA, losing the antigen is much higher. There are mutations that we’re seeing that most patients get.

So that means the next time we try to use a different BCMA therapy, there’s a big chance it’s not going to work. And we have small studies that show that, that people who get a bispecific, and then we try to go to CAR T for both CAR Ts that the response rates go down and the progression-free survival. So the months that patients get without, needing other therapy goes down for cilta-cel (ciltacabtagene autoleucel) [Carvykti], 33 months in CARTITUDE. It goes down to six months in CARTITUDE-2 where they did CAR T after prior BCMA therapy. That’s a huge drop.

In ide-cel, the real-world data, we saw that after bispecifics, you only get 2.8 months. If you get a CAR T, even though the response rates were still 70, 80 percent, it obviously there are clones that that BCMA isn’t there anymore that we can’t kill. And then it just grows back, right? The other way around, we actually see still a really good response because CAR T is a one-and-done, most of the time, you’re not going to lose BCMA.

So that let’s say a few years later, the myeloma was coming back. It usually has the same BCMA on there. So now I can use a bispecific. And yes, the PFS is still shorter than what you would see if you never had any BCMA therapy. It’s still in the realm of, almost a year, PFS though. So it’s much closer to what we see in the real world for bispecifics than the other way around for CAR T, it’s much, much lower. So we try to do CAR T first then bispecific, if possible. The other part is a T cell. So if you try to make T cells right after someone’s coming off of a bispecific, it is really hard to get T cells that are functional that then we can actually put a CAR into and make it work. So again, why, doing a CAR T first, and then a bispecific makes the most sense for the majority of our patients if they can do it that way.


Share Your Feedback

Create your own user feedback survey

Are There Myeloma Trials Investigating CAR T for Frontline Therapy?

Are There Myeloma Trials Investigating CAR T for Frontline Therapy? from Patient Empowerment Network on Vimeo.

Is it possible for CAR T-cell therapy to be used as a frontline therapy? Expert Dr. Krina Patel from The University of Texas MD Anderson Cancer Center sits down with her patient, Lisa Hatfield to discuss CAR T-cell clinical trials, including CARTITUDE-4, KarMMa-2, and KarMMA-9, and trials currently under study. 

[ACT]IVATION TIP

“…talking to a myeloma specialist about different options that are out there for trials because different centers will have different trials that are open and you need someone to help you navigate with that. Which ones are the best ones for you? And then I would say talking to your patient advocacy groups, because that’s really where a lot of my patients hear the information. And then they come to me and say, ‘Listen, I heard this, what does it mean?’ And I think that really helps you kind of even know where to start from.”

Download Guide | Descargar Guía

See More from [ACT]IVATED CAR T

Related Resources:

How Can Variable Patient Groups Be Addressed in CAR T?

How Can Variable Patient Groups Be Addressed in CAR T?

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

What Patient Types Are Good Candidates for CAR T-Cell 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:

So, Dr. Patel, for this next question, I’m going to preface it by saying that anybody that I have ever talked to in my advocacy work about myeloma and how to get care for myeloma, I’m a huge advocate for seeing a myeloma specialist. And I will tell everybody out there that Dr. Patel at MD Anderson is my myeloma specialist, and I’ve been with her since I was diagnosed in 2018. I live in an area where we don’t have any myeloma specialists. And so I’m an advocate for that. And anybody listening, I hope that they know that they can seek out the care of a specialist even for initial consult or even once throughout their journey.

Having said all that, I know Dr. Patel, because you’ve talked to me about them before, that you’re involved in some clinical trials for CAR T therapy. Can you talk a little bit about your trials that you’re doing right now that offer CAR T in earlier lines of therapy, including frontline therapy, and what this could mean for patients?

Dr. Krina Patel:

Yeah, no, I think the CAR T trials are what allowed us to even get to second and third line. The KarMMa-3 and  CARTITUDE-4 were the two trials that brought ide-cel (idecabtagene vicleucel) [Abecma] and cilta-cel (ciltacabtagene autoleucel) [Carvykti] forward, which is fantastic. And I think now it’s how can we improve even further? So some of our clinical trials are even earlier line, like you said, frontline. So we have one called KarMMa-9 that is for patients who have less than a VGPR, meaning that they didn’t get all their myeloma gone after their initial transplant, if they went to transplant, you can do consolidation with CAR T. And we’ve had a few patients that we did on a smaller study called KarMMa-2 that are doing really well after they were on that cohort for that study.

So that’s sort of why they’re doing a bigger study for FDA approval now. And then CAR T 2-5 and 6, we don’t have that at MD Anderson, but a lot of centers do. But that is now trying to see if cilta-cel can actually beat stem cell transplant, which again, a lot of us are really excited about, but we need to do the trial to make sure it’s just as safe and hopefully more efficacious. So I think those are really, really important. Auto-transplant, I was a transplanter when I first became faculty at MD Anderson.

And so I do think it has a role, but it’s high-dose chemo and there are secondary potential side effects that can happen. And people really have to kind of stop their lives for at least two, three months, if not longer, to go through that. Where in CAR T, I think it’s that quality of life piece. Again, it’s one and done. It doesn’t take as long to recover for the majority of patients. And it really is using immune therapy instead of chemo to kill that myeloma, right? So it is very different.

And we’ve seen some amazing depth of response for CAR T compared to what we see with the normal chemotherapy. So the other piece is how we have other trials that are doing earlier lines. So there’s new CAR Ts that are coming out, hopefully in the near future as a standard of care. So there’s one called ddBCMA. It’s a study by Arcellx. And the big news was that Kite, which is one of the big lymphoma CAR T companies, just took over to do their big Phase III study.

So hopefully we’ll have FDA approval for this in the next year with our Phase II study. But the Phase III will be in second line forward just like the CAR T 2-4 was. And this CAR T, it’s different in the way it’s built. And we really don’t see any of the neurotoxicity at all so far, which has been pretty impressive. But we see the same efficacy that we saw with cilta-cel. So this could be sort of best of both worlds, knock on wood. But so far we’ve seen some really great responses. And I think that trial being offered earlier will be great as well for a lot of our patients to get something that might be better than what we have already. The other trials are with other targets.

So we do have some studies that are looking at different targets instead of BCMA. So now we have patients who have already had CAR T with BCMA and over time, years, for the most part, they’re relapsing. And so now we have GPRC5D CAR Ts that are actually being combined with different things to then be able to give them a little bit earlier rather than waiting till after BCMA or fifth line, etcetera. So we have lots of trials looking at all different ways to combine CAR Ts or newer versions of the BCMA CAR Ts that I think are really, really exciting. And I think it’s really hard to keep up with this.

So my activation tip here is really talking to a myeloma specialist about different options that are out there for trials because different centers will have different trials that are open and you need someone to help you navigate with that. Which ones are the best ones for you? And then I would say talking to your patient advocacy groups, because that’s really where a lot of my patients hear the information. And then they come to me and say, “Listen, I heard this, what does it mean?” And I think that really helps you kind of even know where to start from.


Share Your Feedback

Create your own user feedback survey