Agenus Inc. (AGEN) Earnings Call Transcript & Summary

September 21, 2020

NASDAQ US Health Care Biotechnology special 58 min

Earnings Call Speaker Segments

Matthew Phipps

analyst
#1

All right. Hello, everyone. Thank you all for joining. My name is Matt Phipps. I'm a biotech analyst here at William Blair. I do have to first point you all to williamblair.com for a list of disclosures. But I'm happy today to have both management from Agenus Bio; and Dr. David O'Malley, a professor in the Department of Obstetrics and Gynecology at The Ohio State University, to discuss the really important results presented over the weekend at ESMO combining the PD-1 plus CTLA-4 inhibitor bal/zal combo, at monotherapy and combo in second-line cervical cancer. So today, we'll kind of review the data, go over some questions both specifically about the data and how this combination could fit into the cervical landscape, also talk about a couple of the other kind of key things being studied in this tumor type and then finish up with more of a kind of corporate look at what's going on. We do have Dhan Chand here as well, Head of Drug Discovery at Agenus, to chime in for some of that later Q&A. But Dr. O'Malley, I was wondering if we could kick it off just by kind of giving a high-level overview and maybe just your overall opinions of the data set.

David O'Malley;The Ohio State University;Professor-Clinical, Department of Obstetrics and Gynecology

attendee
#2

Thanks, Matt. Pleasure to be here today. I really appreciate you taking the time to introduce us and the exciting results with regards to these 2 independent Phase II trials I think that's important to think about. Overall, we need better options for recurrent cervical cancer patients. The current landscape, as we all know, the checkpoint inhibitor, pembro was approved for a 14% response rate, 14.5% response rate in PD-L1-positive tumors. But I was looking for more options for these patients as they really don't have anything beyond the first-line therapy. First-line therapy is considered a platinum doublet with bevacizumab or Avastin. I'll refer to bevacizumab as bev throughout this talk. If I say bevacizumab too much, I'll sound like an idiot. So we'll do that. And really beyond that triplet and what we consider the GOG 240 regimen, there's really not any options for our patients. And so pembro was approved, a small subset of patients, accelerated approval for this, as I said, 14.5% response rate. So this trial is really looking at that recurrent cervical cancer patient population. I'm happy to go through some of the slides if you like.

Matthew Phipps

analyst
#3

Great. And I think there's obviously going to be comparisons amongst the data sets that are initially made. You have similar drugs with overall similar results but some slight differences. So I guess one of the biggest things that jumped out was the ability of balstilimab did get some responses in PD-L1-negative patients, which wasn't seen in the cohort E of KEYNOTE-158. So -- and that's why KEYTRUDA only got a label in PD-L1-positive patients. So I guess, Dr. O'Malley, do you think that this is enough of an effect that was shown in PD-1 negatives to warrant a broader label for balstilimab?

David O'Malley;The Ohio State University;Professor-Clinical, Department of Obstetrics and Gynecology

attendee
#4

I think the option is definitely there. I mean obviously, the precedent for PD-L1 positive, and we know that the KEYNOTE-158 0 responses in those, I think, 17 patients that were PD-L1 negative. So to see this 8% to 10% response rate in patients who were PD-L1 negative, I think it offers us some hope that though it's modest, that there may be a pathway for regulatory approval moving forward. Obviously, as you know, that will ultimately will be a review question, but there's definitely option here since we saw a 0% response rate in the KEYNOTE-158.

Matthew Phipps

analyst
#5

Yes. Okay. And I guess the other difference being that this separate study also looked at the combination with CTLA-4 inhibitor, zalifrelimab, and not surprisingly, I think, showed an increase in the overall response rate, kind of similar to what Opdivo and Yervoy had showed. But I was actually a little surprised that the response would seem to be really more driving better responses in the PD-L1-positive patients, make deep responses there because they showed kind of similar response rates in the PD-1-negative patient population where you -- I guess, was that surprising to you? Or is that kind of what you might have thought having based on the Opdivo and Yervoy results?

David O'Malley;The Ohio State University;Professor-Clinical, Department of Obstetrics and Gynecology

attendee
#6

It's interesting. I think as we're seeing these biomarker-negative patients and still seeing the responses, how do we make these -- can we make these cold tumors hot with the addition of CTLA-4? And I'm not sure that's there. But what we do see is the duration of responses with the combination. So a marked difference in the overall response rate, I wasn't that surprised, but ultimately, the duration response and drivers in this select group of patients or the biomarker-negative patients, I think, is an opportunity again. And we see this in both the single agent where we did have -- we did see a duration of response reached, which is an important differentiation that we had 2 months longer follow-up than the KEYNOTE-158. So when the people had asked me that previously, well, they didn't see their duration of response. Well, in those 2 additional months where you actually see now up to 15% -- 15 months, excuse me, in the combination, we don't see that duration of response reached in a similar follow-up. So really, when we look at the combination, I suspect we'll continue -- this response rate is not going to get worse, right? But we know with immune therapies that we can have some late responders. So will we see that improve? Not sure we'll see a marked improvement, but there's definitely the duration, and we'd see these patients potentially cured. And that's a really important differentiation if we see the cure rate go from 2% to 6%. And that's the difference between cytotoxic agents and immune therapy. A complete response in cytotoxic agent is not going to be curative. A complete response in an immune therapy may be curative. Unheard of in previous experiences in cervix cancer that you'd have a cure in a recurrent setting. So though modest at 6%, in our bal/zal trial, if we have an option to cure 1 out of 20 patients, that's going to be pretty exciting to the practitioners who are prescribing the option for the combination.

Matthew Phipps

analyst
#7

Absolutely. On kind of some of that talk of continuing to follow this over time, I guess, just in general, do you have an idea, either you or Jen, how many patients remain on therapy at this point, so potential to get deeper responses over time and continue to increase that duration of response? Just a ballpark.

David O'Malley;The Ohio State University;Professor-Clinical, Department of Obstetrics and Gynecology

attendee
#8

Jen, do you have those numbers on where we are on those who are still on therapy? I can't remember off the top of my head. You're muted. All right. Well...

Jennifer Buell

executive
#9

Is it okay? Can you hear me?

David O'Malley;The Ohio State University;Professor-Clinical, Department of Obstetrics and Gynecology

attendee
#10

Yes, now we can hear you.

Jennifer Buell

executive
#11

For the bal monotherapy, we have 47 patients who remain on therapy; and for the combination, 53.

Matthew Phipps

analyst
#12

Okay. So still a meaningful population...

Jennifer Buell

executive
#13

Good number, yes.

Matthew Phipps

analyst
#14

Remain on treatment for both of those, it's great. One thing that's come up...

David O'Malley;The Ohio State University;Professor-Clinical, Department of Obstetrics and Gynecology

attendee
#15

Yes, over 1/3.

Jennifer Buell

executive
#16

Yes.

Matthew Phipps

analyst
#17

Yes, that's impressive. One question that's come up is, does prior Avastin and prior bev, as you referred to, make a difference here? Have you been able to tease that out for these drugs and, I guess, other combinations going forward? Do you think that will play a role?

David O'Malley;The Ohio State University;Professor-Clinical, Department of Obstetrics and Gynecology

attendee
#18

Yes. So that's a really interesting question. One of the little aspects of the KEYNOTE-158 which was not discussed much is that only 2 of the responders had had prior bev. So when you think about that, it is something that has not been looked at more closely by the regulatory agencies, but we have an opportunity to educate them with regards to we are seeing responders in bev prior treated. And I think we'll -- and the final manuscript will attest to that. Obviously, that's not publicly available right now, but that is something that will be further described. Now it is important to say that we also are -- will have that broken down in bev prior treatment. The other interesting part is this -- on the KEYNOTE-158, the pembro approval, was the emphasis on the squamous cell patients. And I think that's really important because those are going to be a higher chance -- I think that was one of the questions, Matt. Those are going to have a higher chance to be PD-L1 positive, but we're seeing those responses across. And really, when you look at the squamous cell population, it's really an interesting data to see the marked response rate in using squamous cell as a biomarker, which is probably a better biomarker than PD-L1 status. But we know the regulatory agencies love the nonhistology biomarkers.

Matthew Phipps

analyst
#19

Yes. No, that's interesting. Yes, I was wondering that. Okay. I would like to touch on the tolerability of the combination. Not surprisingly, you do see a few increases in AEs mainly around like lab normality -- abnormalities and endocrine disorders. But overall, I would say it appears tolerable, but I'd appreciate your opinion on that. And also, there's been this viewpoint especially in the community setting where PD-1 plus CTLA-4 was too toxic. And I think it's been driven by the melanoma experience, which is obviously the first one and used the high dose of IPI. And so to me, going forward, it's been much more manageable. And obviously, physicians we talked to have gotten more used to it. So I guess first, 2 questions there. One, just talk about the combo in this study specifically. And then more broadly, do you think it can be viewed in a new light as opposed to just getting bucketed under the old IPI toxicity basket?

David O'Malley;The Ohio State University;Professor-Clinical, Department of Obstetrics and Gynecology

attendee
#20

The most -- I didn't mean to cut you off there, sorry. The most important differentiation here is the high-dose IPI versus the low dose. And when we are looking at the design of this trial and future designs moving forward, the toxicity and the tolerance of the high dose versus -- I shouldn't call it the low dose but the more chronic dose, I would call it, is an important differentiator in the tolerability. Looking at the older NIVO+IPI from the melanoma, you just see an extremely high rate of colitis as well as other immune-associated toxicities. So when we're balancing which dosing to use and how to move forward, obviously, the efficacy was a main characterization. But also, as we look at the safety particularly in these patients in cervix cancer, who are often challenging patients to treat from a toxicity standpoint, the majority of them have had radiation, they've had at least one line of chemotherapy, if not more, so the tolerance is really important as we look at this. Now the combination clearly will have more toxicities, and that ultimately will need to be balanced with the patient sitting in front of the practitioner. But I think with the information we have here, having both an accelerated approval for the single-agent bal with this combination of bal and zal, allowing practitioners and allowing patients to make that decision based on a slightly increased risk of side effects, right, versus an increased ability for curative intent, longer duration of response and balancing those 2 things will be important ultimately in the marketplace. How many patients will get started on bal versus bal/zal? I'm not sure I can make that prediction. But clearly, clearly, having both drugs in the marketplace, feeling comfortable dropping one of them, zal, if we start having toxicities. But clearly, we have to continue to educate the community about these toxicities and that they are manageable by the -- by far, the majority. And when I counsel patients, I usually counsel 30% to 40% chance of immune-associated toxicities. Of those, 5% to 10% will require hospitalization. Of those, about 1% to 2% could be life threatening or life altering. And I don't see -- we definitely don't see any difference in these across both of these trials.

Matthew Phipps

analyst
#21

That makes sense. And yes, I mean you really did touch on this, right, right then. But okay, these agents are out there, and you have new patients that just had recurrent disease. What are you going to look at from that patient to make a decision, what to start them with, whether it's monotherapy or combo? And we'll get in a second to maybe some of the other options but, first, specifically bal/zal.

David O'Malley;The Ohio State University;Professor-Clinical, Department of Obstetrics and Gynecology

attendee
#22

Well, I'm glad you're giving me the break and letting me start with bal versus bal/zal and not throwing in the competition yet. I think we're seeing an extremely changing landscape in the treatment of cervical cancer, and this is going to continue to change significantly over the next 3 to 10 years. So there will be options there. I think some of it will be obviously prior treatments. We're seeing more and more checkpoint inhibitors in the upfront setting. They previously have received a checkpoint inhibitor, then obviously single agent, then we'd go to combination, and we'll look to move forward to gain more data in that in the future. In a patient who is young, healthy and once -- or 1 out of 20 chance -- again, I don't want to be too dramatic here. I want to be fair to the data. But again, complete responses in immune-associated therapies offers an option for curative intent. And so when you're talking about this, about the toxicity versus the efficacy, I suspect more patients will be started with the bal/zal and then drop the zal if the toxicity is evident. There may be people out there who say, if they haven't had previous immune therapy, I'll start with the bal, I'll see how they do for the first couple of cycles and then add zal. It's usually not the way we do it because we'd like to get the response earlier on, but I think both options are viable.

Matthew Phipps

analyst
#23

And you drive -- another part of that is there are frontline trials ongoing that are looking at -- it's mainly PD-1 plus chemoradiation, I believe. Correct me if I'm wrong there, but that's mainly what's being looked at as a frontline option.

David O'Malley;The Ohio State University;Professor-Clinical, Department of Obstetrics and Gynecology

attendee
#24

Well, as well as advanced recurrent, we're combining it with chemotherapy.

Matthew Phipps

analyst
#25

Yes. And so I guess if a patient gets treated in one of those studies and then obviously doesn't have response or loses that response, you would be willing to say, okay, we'll try them now with PD-1 plus CTLA-4 even though they got that PD-1 plus chemo, right? You would view that as kind of...

David O'Malley;The Ohio State University;Professor-Clinical, Department of Obstetrics and Gynecology

attendee
#26

I think right now, I don't let -- there would be no data to hinder me from doing that. Obviously, what the approval will look like and what we can do is the question. Obviously, we'd like to see more data in the future. As we design the confirmatory trial as we move forward, looking to see what options are available, you know that we already have RaPiDS enrolling, which is a randomized Phase II, looking at bal versus bal/zal in a placebo-controlled trial. And that is really to add to the Phase II data to ensure we have enough patients in the subgroups to justify moving forward in accelerated approval with the final data set. So that is not the confirmatory trial. I think that's very important. In the current time, we're moving forward with how can you bring these agents to the marketplace both for our patients in the recurrent setting, but is there an option elsewhere, too?

Matthew Phipps

analyst
#27

Okay. So not surprisingly, questions coming in about the data that was just presented not too long ago with the tissue factor, antibody drug conjugate with tisotumab vedotin.

David O'Malley;The Ohio State University;Professor-Clinical, Department of Obstetrics and Gynecology

attendee
#28

Yes. Nice. I call it TV. I call it TV. So Rob Coleman just presented that data, and I would have been in my Phase I clinic here. So I was not a coauthor on that paper, so I'm just seeing the final data as we came into this meeting here today. I think TV efficacy looks similar, similar patient population treated, again, about 100 patients. And so -- and there's single arm. In this report, it was Phase II. So -- and what's interesting there is a similar complete response rate. I think it was 7% in what he presented. But -- that's why I made a point at the very beginning when we're talking about cytotoxic or antibody-drug conjugates, complete response rate really has not been associated with potentially curative intent. So I think it's a pretty important differentiator. But what's the most important differentiator? Listen, TV is a good drug, and I'm moving forward and participate in those clinical trials. And I would love to see that drug also in the marketplace. But as I look at the -- ultimately what's available in the recurrent cervix cancer, there are some challenges to the toxicity profile with -- particularly for neuropathy. And the inflammation of conjunctiva can always be a challenge. So I think you need to look at that. Obviously, with regards to some of the bleeding issues, which I think are not that worrisome but yet, again, if you have a patient who's already having some issues with the central tumor in the cervix, that can also come into play. I'd love to see all 3 of these drugs be in the marketplace. And ultimately, how we prioritize the treatment of those and where those are used will just be helpful to our patients. And I think as we see more options available, we're going to see better outcomes and more opportunities for patients to get more lines of therapy. Right now, we just beat them to death. That's a terrible term. I apologize. We just -- we really are utilizing chemotherapy and just keep giving it and keep giving and keep giving it. I think sometimes the chemotherapy toxicity can be worse than the disease. And then after that, trying to get any additional therapy is really a challenge. In the future, we're going to be able to change that paradigm. In these patients, we'll see 3, 4, 5, 6 agents, not like now they only see 1, maybe 2.

Matthew Phipps

analyst
#29

Right. All right. Yes, one question, and I don't know if you saw the specific tidbit, but I guess there was a difference, again, in the TV data for whether or not a patient had prior Avastin.

David O'Malley;The Ohio State University;Professor-Clinical, Department of Obstetrics and Gynecology

attendee
#30

Yes.

Matthew Phipps

analyst
#31

And just kind of interesting here now seeing this, I guess, more clearly. So would that impact, I guess, how you sequence therapies based on whether somebody had Avastin upfront?

David O'Malley;The Ohio State University;Professor-Clinical, Department of Obstetrics and Gynecology

attendee
#32

Well, I want to make sure I'm saying what's publicly available because I have some other information. So I just am flipping over here and looking at what's publicly available.

Matthew Phipps

analyst
#33

I think there was [ 30% ] response rate in Avastin-naïve versus 19% in Avastin, if I'm looking at the right thing.

David O'Malley;The Ohio State University;Professor-Clinical, Department of Obstetrics and Gynecology

attendee
#34

Yes. Thank you. I just want to make sure what I was saying was publicly available because, as I said, I participate in clinical trials for both of these -- or all 3 of these agents. So clearly, there's a difference between bev pretreated here in those patients. And I'm not sure it's completely explained by the mechanism of action in -- or the mechanism but also how to deliver it with the antibody-drug conjugate. So I think we need to continue to look at that in the immune therapy. It's not -- it's probably not as marked of a difference, but yet seeing that in the pembro data, you could argue that the responses were not nearly as wide in the bev pretreated. So another data which is maturing as we move forward, we'll have that answer especially in the combination and the single agent.

Matthew Phipps

analyst
#35

Yes. Okay. Dr. O'Malley, another therapy that gets brought up a lot, and just to get your opinion on that, is the tumor-infiltrating lymphocytes and specifically the process of harvesting and shipping them off, having them kind of reinvigorated and grown back up and then tuned back, I mean amazing response rates data and also kind of seem to show that durability of immunotherapy but I'm sure a little bit laborious and burdensome to get. So I guess just your thoughts on that and where that would fit in with some of the other agents that are kind of getting close.

David O'Malley;The Ohio State University;Professor-Clinical, Department of Obstetrics and Gynecology

attendee
#36

Yes. Great, great, great option for patients, but the problem with it, it's a pretty limited group of patients which are going to be able to undergo that therapy. You need to have a slowing-enough, progressing tumor to wait for the 6 to 8 weeks process as you go through. You have to have a tumor that's clean, that you can resect and send off. So a patient with a central cervix tumor can't be used. A patient who has tumor on the bowel cannot be used. So you have to have the right patient that you can harvest the tumors. Again, a very exciting option for our patients, but it's going to be a much more limited population. I already talked about how our patients are really compromised from the amount of chemotherapy they received and the prior radiation as well as patients with a lot of comorbidities. And so to undergo lymphodepletion and then the high-dose -- I guess not high dose, the dose in the IL-2 takes a unique patient population and a group of patients. So the safety on that obviously is a challenge. The patient selection is obviously a challenge. And again, I hope we have all the technologies available to us for our patients, but this would be a smaller patient population.

Matthew Phipps

analyst
#37

So Dr. O'Malley, now to your -- you get the option to run a frontline trial with no regards for corporate incentives. Yes, we talked about there are the PD-1 chemos ongoing. To my knowledge, there's not a frontline PD-1/CTLA-4 ongoing. And then obviously, maybe looking at some of the TV plus PD-1 could be interesting. What do you think you would want to try to kind of deliver the best chance of long-term duration of response to patients?

David O'Malley;The Ohio State University;Professor-Clinical, Department of Obstetrics and Gynecology

attendee
#38

Yes. Great question, Matt. How are we going to cure more people? If we don't cure them, how are we going to improve their quality of life? And you just heard me say the option of chemotherapy and continued chemotherapy. So I think we need to look at can we replace chemotherapy. That's an extremely high regulatory approval to take on, platinum, taxane, bev versus an immune therapy, and probably not the design of the trial that is going to ever occur because of the bar that's set by that triplet combination but ultimately having patients be cured with advanced recurrent. And probably most importantly, we have a lot more patients with local regional disease which are -- have as high as a 50% recurrence rate with treatment of chemoradiation. So I really like to see us improve upon that. I think the option of single-agent checkpoint inhibitor, in this case PD-1, is already being done, as you know. But looking at the option to bring combination therapy, can we do a better job of curing more patients? And then on that same note, can we do a better job of curing more patients with combination immune therapy in the advanced, recurrent, metastatic first line? I think those are 2 great options that we continue to look at in our design of our -- and moving forward.

Matthew Phipps

analyst
#39

Great. I think just one more question that I get is, okay, KEYTRUDA is approved second line for PD-1-positive patients alone, used pretty ubiquitously across a lot of other tumor types now, so just very familiar with that. You have a new PD-1 drug that comes in. I guess on the one hand, physicians often do follow labels, yes, especially more in the commune setting, and so that could kind of drive which one they reach for. But also, maybe they just kind of bucket in PD-1s as PD-1s. And so I guess what do you think is going to be kind of things that will influence which drug on the shelf a physician reaches for particularly if you're, I guess, looking mainly just at pembro versus bal or the bal/zal combo, I guess?

David O'Malley;The Ohio State University;Professor-Clinical, Department of Obstetrics and Gynecology

attendee
#40

Yes. So the PD-1 inhibitors are more similar than they are different from an efficacy and tolerance standpoint. But what do we -- can you guys still hear me?

Matthew Phipps

analyst
#41

Yes.

David O'Malley;The Ohio State University;Professor-Clinical, Department of Obstetrics and Gynecology

attendee
#42

Okay. Sorry, I'm getting -- so what do we really look at? When I set out in this adventure working with Agenus and the team there, I want to applaud them. We really challenged each other to say, how are we going to do better? And do we want just a me-too drug? And that wasn't the goals here of Agenus, and it sure wasn't my goal. So as we look to say where are we from a single-agent standpoint, absolutely do I want that option, absolutely do I want to potentially expand the label to include adenocarcinomas, to include PD-L1 negative? I hope we get that. We ultimately will see. But the combination is really where are we going to make a difference in the treatment of these patients with recurrent cervix cancer is the combination, and that is not going to happen with pembro. We haven't seen BMS pursuing approval, which was surprising to many of us. And there's been -- I haven't heard any plans for that to move forward, nor is publicly available at least.

Matthew Phipps

analyst
#43

Okay. Great. So I think with that, I would like to bring in Dhan and Jen to kind of get some steps -- next steps and talk about where the company wants to go from here. So congrats also, by the way, of initiating that rolling submission of the BLA. That's really exciting for bal. And I guess just any high-level thoughts, Jen, on how long will that process take, do you think, and kind of if there's other things that need to be really completed and then particularly the next steps for the combination.

Jennifer Buell

executive
#44

Excellent. Thanks, Matt. And thank you again for joining, Dr. O'Malley. Great presentation this weekend. So what's next? First thing, of course, would be to fully publish these data. So Dave did a fantastic job in presenting the data to date where we've already prepared -- we're in the process of preparing a manuscript of the information. The BLA submission is already being initiated. We've initiated the submission with some of the components already submitted. As you can recall, we received Fast Track designation for these agents which makes us eligible for Priority Review. So with our filings planned to be fully submitted this year, we would expect to be -- have a decision by -- the latest would be midyear next year. So balstilimab monotherapy will be the first submission in. And we are planning to nearly immediately, if not in parallel, get the combination in.

Matthew Phipps

analyst
#45

Great. And actually, I want to take one other question that I think will involve Dr. O'Malley, if I may. I know you're kind of part of the NCCN Guidelines or committees.

Jennifer Buell

executive
#46

Yes.

Matthew Phipps

analyst
#47

And so also while you're going through this process of that, how are you working on talking to the societies and making sure this data, I guess, gets in front of the people it needs to get in front to, to get into guidelines and such inclusion there?

David O'Malley;The Ohio State University;Professor-Clinical, Department of Obstetrics and Gynecology

attendee
#48

Well, as you know, Matt, that the NCCN Guidelines, unless the drug is approved in the marketplace, they're not going to include it. So if it's included in another disease site, would that be an option? Potentially. I sit on the ovarian cancer guidelines. I do not sit in the cervix, nor the uterine. So the precedent for us is obviously, usually, it has to be a large -- in ovary. I can't attest to cervix. But across the NCCN Guidelines, it has to be a well-powered Phase II to garner a Compendium listing. That bar, because of the number of trials being done, seems to be raising a little bit more in the future. But I wouldn't expect a Compendium listing or NCCN Guideline listing unless a drug is approved in the marketplace. With regards to how do we get this out, well, I think the ESMO, IGCS, SGO, ASCO, all being remote has been a challenge. We continue to find ways to disseminate and discuss this as we're doing a Zoom call here today. Yes, we're also working -- I've put Agenus in contact with our CME groups to make sure that they're working with education with regards to recurrent cervix cancer. And we have this information out as a thought leader in the immuno-oncology space in GYN cancers and as part of the GOG Partners mechanism. We -- that's -- much of our emphasis is placed on educating the other GYN oncologists and medical oncologists who treat cervix cancers across the U.S. and across the world involvement in these societies. So we continue to look for ways to better educate during these challenging times.

Matthew Phipps

analyst
#49

Sure. And so I guess, Jen, on your side of things, how are you helping Dr. O'Malley here? And I guess how are you thinking about approaching the market in sizing that infrastructure appropriately to help get this out there?

Jennifer Buell

executive
#50

So Matt, maybe just by way of just recognizing that these trials move from Phase I in multiple solid tumors, generating data across a number of different tumors, including complete responses in angiosarcoma, very lengthy, durable responses in ovarian, and then we expanded into the cervical cancer. So all of those data are being prepared or have been presented at conferences or published under different mechanisms. We've already started speaking through our contacts with the NCCN about the requirements and eligibility of these programs. And based on the size and scope of the trial and the conduct of the trial, the rigor of the data and the independent review, we meet the requirements for NCCN issuance. Of course, that will require a couple of things that are still pending such as the publication in cervical cancer, which will be our first priority; the submission and approval dates right, we will need the required -- the requisite approvals for submission in cervical cancer. There are some other tumors for which we have some data -- generated some data that may be more rare than cervical, that we could be eligible for expanded NCCN inclusion and that being tumors like angiosarcoma. So we have a series of tumors that we will be planning to approach NCCN with, cervical being our highest priority, and the planning being to make sure that we line up all of the data and the publications and submissions in parallel, so at the time of approval, we would hope to be included in the guidelines at that time.

Matthew Phipps

analyst
#51

Great. Jen, I guess just on a broader view and a longer view, how do you kind of balance further development of the bal/zal combo and other tumor types or maybe other pipeline combination versus kind of pushing forward with 1181 and kind of replacing bal. Not to say it needs to be replaced, but I think we're both pretty excited about 1181. Dr. O'Malley, I don't know if you want to get your hands on 1181 in cervical as well, if you're familiar with that, the next-gen CTLA-4. But just how are you thinking about that, Jen, as far as you got to pick where to start with these trials and can't necessarily do all of them, right?

Jennifer Buell

executive
#52

Well, that's right. I think part of this is 1181 is telling us where to go already, so with respect bal/zal, these are mature assets now with a significant and a robust safety database and an opportunity really to be second to market -- maybe first to market in cervical possibly and second to market in a number of indications. And as we've spoken about previously, Matt, we could be second to market in some relatively large indications, even pursuing 5% or 10% of the market in tumors like lung, melanoma, RCC for a significant upside for us. And we're talking about $700 million to about $1 billion in revenue, which would be very meaningful for company our size, right? We're quite efficient. So I would say that's an important piece. These trials are -- effectively, these agents are so far along that we have a big opportunity to take advantage of some of those markets now. The 1181, it is -- we look forward to presenting some additional data at a medical conference this year. I'm really excited about how the data continue to evolve. We've presented early data, 1 mg per kg monotherapy CTLA-4 showing complete responses and microsatellite stable, so very difficult to treat tumors previously known to be unresponsive to I-O agents, and we're seeing activity. We've now expanded our profile of clinical benefit in a number of different solid tumors that we're pursuing. Now what we've looked to do, there are a few paths here. We are seeing activity in patients who are homozygous for the CD16 allele polymorphism, which is very important. These tumors are unresponsive to anything available. While we continue to opening -- keep our trials open to all allele-status patients, right, homozygous and heterozygous, we are expanding and enriching in tumors such as colorectal, microsatellite stable, endometrial as well as in tumors like lung melanoma. We will be telling you more as we share some of the data that will be coming out later at a medical conference. We'll be sharing a summary of where we'll be taking these agents with you. So stay tuned. It won't be very long, but we have a pretty exciting plan to talk to the markets about.

David O'Malley;The Ohio State University;Professor-Clinical, Department of Obstetrics and Gynecology

attendee
#53

You're killing me, man. Let's stay -- we're this close. You're trying to get me the switch to use 1181? I mean come on. So I think what we need to -- I applaud Agenus. Their pipeline is quite impressive and, actually, the opportunity to partner with them moving forward with their pipeline and the options, which are quite limited in other pharma partners that I work with. So having this option for our first-generation PD-1 and CTLA-4 inhibitor, getting it to the marketplace, getting approval and utilizing that as the stepping stone into further indications with the new agents is exactly where they should be. And we look forward to continue exciting data for the next generation of CTLA-4 in these immune therapies.

Jennifer Buell

executive
#54

You are absolutely right. And that -- I think that we -- when we look at our pipeline right now, we have 8 programs in the clinic, right? So these are -- it's so critical that we get these over the finish line. Bali plus/minus zali are going to be at the foundation for everything else that we do. 1181, 1223, 2373, I mean it is just -- but ideally, what we'd like to do is to give all of our compounds to Dr. O'Malley. Every time a patient likes to see him, he has something for them, right? That's the complete solution. That's what we want. We never want him to say what protocols do I have access to, and we want him to be able to drive that treatment decision, having all of these options at his fingertips. But the base of this all will be bali/zali, so looking forward to getting those through to the finish line.

Matthew Phipps

analyst
#55

Well, I mean I think it's a great transition to talking about a few of those here in the last couple of minutes that you just mentioned. So Dhan, to bring you on now, I think -- if you don't mind, first, there was some data over the weekend about targeting TIGIT from Merck. You guys are obviously right on the cusp, you're getting your own TIGIT molecules, and you have 2 of them. And so I guess over the past 6 months, we've seen -- not even 6 months, we've seen data from Roche and Merck that have generated some polarizing opinions on is TIGIT a real target, is it just a little bit of a step, is it really going to be anything beyond like IPO on expressing non-small cell lung cancer. I'll say that's not an important opportunity. But curious, Dhan, what your opinions are and how you guys are thinking about the next steps with your own molecules.

Dhan Chand

executive
#56

Matt, thank you for that question. I take that you can hear me well. Good. Well, I would say that we remain very encouraged by the data coming from Merck and from Roche. I would say there's 3 things to note here. The first is that both Roche and Merck are showing that adding a TIGIT on top of PD-1 is expanding responses. In the case of Merck's PD-1-naïve population, you're seeing evidence of deeper responses with TIGIT therapy. Yes, it is incremental, and we've articulated many times why that would be the case. We've demonstrated preclinically that this current generation of TIGIT molecules are not ultimately designed to really target TIGIT. Now we like TIGIT as a target. I think many people do because you recognize the importance of TIGIT. In fact, you have to go all the way back to PD-1 and CTLA-4 to see the first I-O plus I-O combination. And outside of PD-1 plus CTLA-4, there's no other I-O plus I-O that's really starting to emerge as a validated approach other than perhaps TIGIT plus PD-1. We've said -- we've stated very early on that TIGIT is an ideal combination partner for PD-1, but you need the right TIGIT molecule. And we published on the importance of Fc. You'd recall from our presentation at AACR last year, how our Fc engineering approach gives monotherapy activity, which is not something you see with the current generation of TIGIT molecules, both preclinically and now clinically, but also then our combination activity. So that's a very important point to make, that the clinical data is encouraging, but like what we've seen preclinically, we were starting to see the same thing clinically, it's not optimal, right? And then lastly, we -- as you're aware, at R&D Day, we mentioned that we're pursuing a TIGIT bispecific as well. And we haven't disclosed what that second arm is, but we have articulated that it addresses a major or potential relapse or resistance mechanism to TIGIT therapy. And we are seeing in our preclinical data responses in PD-1 refractory models. That's what we've shared with you last time we spoke about this. But I would say that the data is very encouraging. It certainly bolsters our position in TIGIT therapy. And we remain very encouraged by that data and, of course, enthusiastic with moving our TIGIT therapy to the clinic. We believe we have a better-designed molecule to address the limitations of the first -- or current generation of TIGIT antibodies.

Matthew Phipps

analyst
#57

Dhan, I guess then just based on what you've seen, does that kind of influence your initial clinical trial designs? I mean obviously, not going to be dose escalation, but were you really focused on moving quickly to that combo in PD-L1-positive tumors? Or you guys have thoughts on maybe other places that you can make it work?

Dhan Chand

executive
#58

Yes. I think it's pretty interesting that there's a lot of focus on PD-L1-positive tumors. Not a lot of talk about TIGIT positivity or PVR positivity. Part of that can just be limitations of the tools available. As you know, when we advance our drugs to the clinic, we take a very laser-focused approach to measuring potential biomarkers, both that are predictive of response but also indicative of activity of the drug. So I think we have definitely an approach that would not only be complementary to what others are doing, but it's also unique to help identify the right patients for TIGIT therapy but also identify the right combination. I think PD-1 is definitely a goal. There's a lot of literature showing TIGIT plus PD-1 co-expression. The clinical data support the combo. Bali, you spoke earlier about where do you take bali next. Well, as Jen mentioned, bali is going to be a cornerstone going forward. TIGIT is definitely one of those therapies we add to bali. But we also have zalifrelimab. We have 1181, right? That's another way we can differentiate as we advance our TIGIT therapy on top of having what we believe as a best-in-class molecule.

Matthew Phipps

analyst
#59

Dhan, I appreciate that response. And then the other interesting thing at ESMO kind of from an earlier clinical standpoint is some of the 4-1BB -- tumor-localized 4-1BB targets. So we saw Pieris and Roche both had updates, one on HER2, one FAP. I think it's some interesting work. One, I do think they've shown that they can get over some of the toxicity that urelumab showed and showing signs of activation. And Pieris showed a lot about serum 4-1BB as well as increases in T cells in the tumor. I know you guys are in the clinics with 2373, which is not a tumor-specific 4-1BB activator. And I know it's partnered with Gilead, so I know there's not too much you can say. But curious just what you think about the data that was shown over the weekend and how that might influence kind of 2373 next steps or how you're thinking about what to combine that with or anything like that.

Dhan Chand

executive
#60

Yes. So Matt, you correctly stated that these bispecifics are designed to be tumor-specific because they have a tumor antigen as the second arm. I would like to highlight though that 2373 is designed to avoid peripheral activation and activation in the tumor microenvironment. One thing to point out here is that I think the idea of targeting CD137 or 4-1BB has been shown many times over, both in the cell therapy space and most recently now with these newer approaches. The goal is ready to get activity in the tumor. And these bispecifics, while they are designed to address safety, they're limited to just tumors that express that particular antigen, right, whereas agent 2373 does not have that problem. We designed the molecule to be active in the tumor irrespective of whatever tumor antigen that they present. So while you know that, I mean, anything is a real concern, what will you give patients who need CD137 but no longer express HER2 and no longer express FAP, right? This is where 2373 really shines. It's because the molecules Fc engineered can only be active or only be agonist to 4-1BB in the context of the right immune cells present in tumor microenvironment. So we're not limited in terms of indications. And we think that we still have the better molecule compared to the bispecific approach with respect to broadening the reach of 4-1BB. In terms of the soluble 4-1BB, I think that's not -- I think the jury is still out on whether or not that could be a biomarker to predict those. From the Pfizer study, they demonstrated 4-1BB based on immune activation. It's a well-known activation marker, but there's already dose response to it and correlating with response. So I think that the jury is still out there.

Matthew Phipps

analyst
#61

All right. Thanks, Dhan. Well, Jen, maybe I'll turn it over to you to kind of wrap things up, I guess, just to summarize here. You kind of hit all the marks for the data presentation this weekend, started the rolling submission already for the mono. You talked about soon to come for the combo as well as the publication, so really kind of getting all the pieces together to show the totality of the data here that get you that first indication and then broadening out from there. But I guess anything else you want to touch on? Or Dr. O'Malley as well, if you have any things worth wrapping up with? Otherwise, I think I'm out of questions.

Jennifer Buell

executive
#62

I'll just -- I'll ask Dr. O'Malley if he has anything else that he wants to say, and then I'm happy to close out the call.

David O'Malley;The Ohio State University;Professor-Clinical, Department of Obstetrics and Gynecology

attendee
#63

Yes, I think I'm honored to talk about this exciting data. It's obviously a step in the right direction for ultimately gaining access for these -- both these agents in -- for our patients. We're going to continue to look for ways and more to come on that with regards to offering them to a greater group of patients and increasing the chances of curative intent in these hard-to-treat patients. So really, thank you for all of you attending. Matt, thank you for being a great moderator. And appreciate Jen and Dhan and their insight today. Thank you.

Jennifer Buell

executive
#64

Thank you very much, Dave and Matt. Thanks very much for the call. And of course, tremendous thanks to all of our patients who have participated in these trials. Dave mentioned this earlier, cervical cancer has been, is a very underserved tumor, and there have been very few treatment options that have come forward. And the data that we presented at ESMO present a few different options, right: one, broadening the patients who can benefit from a PD-1 inhibitor; and then also potentially doubling response rates specifically in certain histology groups like the largest histology that we see, squamous cell carcinoma. That combination with balstilimab and zalifrelimab represents some very meaningful potential best-in-class treatment benefit to patients. So we're really looking forward to getting those into the market as quickly as practical. Dhan mentioned a few options with respect to our portfolio, our pipeline, the differentiation of some of the novel therapies. And I think an important piece to remember about Agenus' portfolio is we have all of these agents in our own hands, so it gives us enormous flexibility to continue to deliver responses to patients over time. So we can participate in their journey, ideally, expanding the number of patients who can be cured. If we don't hit those cures, we continue to give them treatment options. That's what we're designed to do, and we have a pipeline and a number of programs. So 8 of these assets that we've discovered are in the clinic in our own hands. And 7 additional are in our partners' hands, and some of those data you also saw at ESMO. Merck presented data on MK-4830. That's a molecule that we discovered, addressing myeloid biology and ILT4 mechanism. And there are a number of discoveries like that, that we've partnered with to really expand our opportunity to broaden the reach to patients. So I wanted to just end on that note, Matt, and thank you again for the opportunity to speak with you today.

Matthew Phipps

analyst
#65

Thank you all so much. Thanks for bringing up the ILT4 antibody. I can't believe I forgot about that. We have Merck share some interesting data there, too.

Jennifer Buell

executive
#66

Yes.

Matthew Phipps

analyst
#67

So all good things. Dr. O'Malley, thank you very much for taking the time out of your day to go over those results. And Jen and Dhan, I appreciate it again as well, and look forward to seeing more.

Jennifer Buell

executive
#68

Excellent. Thank you, Matt.

Matthew Phipps

analyst
#69

Thanks, everybody. Bye.

Jennifer Buell

executive
#70

Bye.

Dhan Chand

executive
#71

Bye.

Read the full transcript via the API

You're viewing the first half of this call. Get the complete Agenus Inc. transcript — plus 252,000+ transcripts from 12,000+ companies, speaker segments, AI summaries and full-text search — through the EarningsCalls.dev API.

Get the API View API docs →

This call discussed

For developers and AI pipelines

Programmatic access to Agenus Inc. earnings transcripts and 252,000+ others is available through the EarningsCalls.dev REST API. Plans from $24.99/month — full transcripts, speaker segments, full-text search, and the recently-added /api/v1/transcripts/recent polling endpoint for ETL pipelines.