Greetings, and welcome to Monte Rosa Therapeutics Conference Call to discuss the company's pipeline updates and clinical results. At this time, all participants are in a listen-only mode. A question-and-answer session will follow the formal presentation. As a reminder, this conference call is being recorded. It is now my pleasure to introduce Andrew Funderburk, Senior Vice President, Investor Relations and Strategic Finance at Monte Rosa. Thank you, Andrew. You may begin.

Thank you. Good morning, everyone, and thank you for joining our conference call to discuss the clinical and preclinical updates across our pipeline. With us on today's call are Markus Warmuth, Chief Executive Officer; Filip Janku, Chief Medical Officer; Sharon Townson, Chief Scientific Officer; and Phil Nickson, Chief Business and Legal Officer. Before we begin, I would like to remind everyone that any statements we make or information presented on this call that are not historical facts are forward-looking statements that are based on our current beliefs, plans and expectations and are made pursuant to the Safe Harbor provisions of the Private Securities Litigation Reform Act of 1995. Please refer to our annual report and other filings we make with the SEC for our risk factors and other information. With that, I'll turn the call over to Markus.

Thank you, Andrew, and thanks everyone for joining us this morning. It's real pleasure to provide today exciting updates across our clinical and preclinical programs. I'll kick it off by just outlining some of the highlights we will go through in this call today. First, we'll talk about results from our Phase 1 healthy volunteer study of MRT-6160, which very clearly support our path into broad Phase 2 development of this asset. Filip will discuss these results in a minute, but heads up, we really strengthen our conviction in the potential of MRT-6160 as a broadly applied novel treatment approach for immune mediated disease. We will then briefly touch on our NEK7 program, which is on track for an IND submission in the first half of this year. We're also going to provide some details today on the IND enabling studies and some results there as well as our thoughts on clinical development for this program. And then as sort of a last contribution from the I&I side, I will show you a few slides on how we're using our clean platform to expand our portfolio of oral I&I drugs. Lastly, of course, we'll also get into our oncology programs, but I'll talk about some of those details later in this presentation. So now let's turn to the I&I program starting with MRT-6160 our VAV1 directed molecular glue degrader. And so as you can see on Slide 5, VAV1 is a signaling molecule critical in both T and B cell receptor signaling. VAV1 regulates secretion of key immune modulatory cytokines including IL-2, IL-17 interferon-gamma and IL-6. And by doing so, VAV1 is really critical for the interplay of T cells in particular TH17 cells with B cells in immune mediated diseases. And where there's a clear evidence that VAV1 is critical for hyperactivation of these pathways. Most importantly with the overlap of MRT-6160 is [indiscernible] with those known for approved biologics, we think this could be an exciting alternative to many of these therapies. And so we believe MRT-6160, as mentioned before, could have very broad potential applications in immune mediated diseases. We've designed MRT-6160 as a highly selective MGD targeting VAV1, and we moved it into a Phase 1 healthy volunteer study last year in August. In October, seeing the broad potential for this target across the new mediated diseases, we were very pleased to announce our exclusive strategic development agreement with Novartis by collaborating with a key player in the I&I space, with a company that has outstanding clinical development organization. We believe we can accelerate and broaden the scope of potential development for MRT-6160 by retaining substantial value for Monte Rosa. So with that, I'm pleased to turn the call over to Filip, our Chief Medical Officer, to review the actual datum we have from our Phase 1 study.

Thank you, Markus, and thanks, everyone, for joining. We are really pleased with the data from our Phase 1 SAD/MAD study of MRT-6160 in healthy volunteers. As shown on Slide 8, MRT-6160 was dosed in five single ascending dose cohorts and three multiple ascending dose cohorts. The primary endpoints of the study were safety and tolerability. Other endpoints included pharmacokinetic, pharmacodynamic, which included VAV1 degradation levels in T and B cells as well as assessment of ex-vivo response to T cell and B cell receptor stimulation. Here on Slide 9, you can see the analysis of plasma concentration of MRD-6160 over time, which in healthy volunteers demonstrated a dose dependent pharmacokinetic profile. Multiple ascending doses resulted in an approximately twofold increase in exposure at steady state and no food effects were observed. As shown on Slide 10, VAV1 degradation was assessed by flow cytometry of CD3 T cells and CD19 B cells. In addition, ex vivo stimulation of whole blood was performed to assess T and B cell functions, including CD69 upregulation measured by flow cytometry and cytokine secretion measured by immunoassays. As we show on Slide 11, MRD-6160 achieved dose dependent VAV1 degradation in peripheral blood T cells, which exceeded 90% after single and multiple dose administrations except for dose level one of SAD where we get to 80% degradation. We were very pleased to see this level of potency consistent with our preclinical studies and matching our target profile. In addition, VAV1 protein reduction was sustained into the post treatment period with dose dependent recovery following treatment. Similar results were observed in B cells. Next, we evaluated the impact of MRT-6160 on the functional inhibition of T and B cells as measured across several well characterized immunomarkers. In our clinical study, VAV1 degradation by MRT-6160 resulted in significant…

Thanks, Filip. Shown on Slide 22, we believe the potency selectivity and long lasting PD profile of 8102 creates potential differentiation from competitive approaches. We have demonstrated potent and mono selective degradation of NEK7, including no degradation of any of the other NEK family members. Our data also demonstrates that drug exposure results in a prolonged PD effect, which we think distinguishes our NEK7 degrader from NLRP3 inhibitors. Preclinical profile of 8,102 has been highly favorable and supportive of continued development as shown on Slide 23. In the left panel, we show after five days of dosing in CYNOS, in vivo NEK7 degradation leads to near complete inhibition of caspase one activity and IL-1 beta release in ex vivo stimulation assays. Moreover, the preclinical GLP toxicology study suggests a considerable safety margin for MRT-8102. The no observed adverse effect level was the highest dose tested in both rats and CYNOS with a greater than 200 fold exposure margin over the projected human efficacious dose in both species. Importantly, there were no MRT-8102 related clinical signs, no changes in immunophenotyping and no growth or clinical pathology findings at any dose level. We also studied 8102 in a rabbit gout model to better characterize its effect on inflammatory diseases. As shown on Slide 24, daily oral dosing of 8102 at 50 mgs per kg reduced pathogenic effects associated with GAP, including reduction in joint swelling and histopathology scores. Overall, we are highly encouraged by the preclinical profile of 8102 and look forward to filing an IND in the first half of this year. This now brings us to the potential for expansion of our NEK7 program and the optimization of our NEK7 degraders for CNS penetration. Given the large therapeutic potential we see for NEK7, we've been advancing MGD specifically optimized for…

Thank you, Sharon. So just to recap the I&I part of today's call, we just showed you very encouraging data for MRT-6160 in our healthy volunteer trial. And we really got to the 80% plus degradation of VAV1 and cytokine modulation of 82% to 99%, very encouraging data set and mapping a clear path into Phase 2 trials. We're also looking at an IND in the first half of this year for our next seven degrader MRT-6160 and two targeting our pathway, the NLRP3 inflammasome that's getting more and more attention. And then we talked about creating more opportunities for us to utilize, clean our discovery engine and to build a highly differentiated portfolio of oral I&I drugs. And so now let's turn to our oncology programs equally exciting. In the second half of the call, we will provide you an update on our MRT-2359 development program. And we will show you some really encouraging data in castration resistant prostate cancer, a tumor type characterized by widespread expression of c-MYC on top of AR of course. And we will discuss why we decided to prioritize this indication over other expansion cohorts. But bottom-line, we see this as a hugely exciting opportunity for MRT-2359 moving forward with the added benefits of not having to develop a companion diagnostic in that setting. Towards the end, we will also touch base on CDK2 and cyclin E1, two very, very interesting programs on highly validated targets. I'm going to provide you a quick update on our path to an IND submission in 2026. And so with that, I'll hand it back over to Filip to lead you through our updates on MRT-6160.

Thank you, Markus. I'll start off with a brief recap for our terraforming hypothesis for the GSPT1 program. So GSPT1 is a translation termination factor, which has an important role in termination of the protein translation. Of interest, we discovered that molecular Glue degrader induced GSPT1 degradation is deeper and faster in MYC-driven cells compared to other cells, resulting in impaired protein translation, synthetic vitality and ultimately reduced MYC expression. Therefore, GSPT1 degradation offers a potential therapeutic modality to drug MYC driven cancers. The three different MYC family members are involved in multiple cancers, including ones which are listed here on Slide 33 and which we explored in our Phase 1/2 study of MRT-2359. This includes both small cell lung cancer, non-small cell lung cancer driven by N-MYC or L-MYC, high grade neuroendocrine tumors and androgen receptor positive prostate cancer as well as hormone receptor positive breast cancer driven by c-MYC. Based on our more recent data, we started to focus on tumors that are primarily known to be c-MYC driven, which has the added benefit of not requiring biomarker based selection of patients. One of these tumor types is prostate cancer in which c-MYC over expression drives androgen receptor dependence and therapeutics resistance and castration resistant prostate cancer. Our Phase 1/2 study of MRT-2359 was designed to assess safety, tolerability, pharmacokinetics, pharmacodynamics and preliminary clinical activity of MRT-2359 in patients with previously treated selected solid tumors. Our [indiscernible] escalation cohorts focused on selected MYC driven tumors such as non-small cell lung cancer, small cell lung cancer, high grade neuroendocrine tumors and tumors with L-MYC amplifications. We dosed patients at multiple dose levels using a 5 days on, nine days off schedule as well as a 21 days on, 7 days off schedule. Late last year, we announced that the…

Thanks, Filip. I'm excited to now share some promising preclinical data from both our cyclin E1 and CDK2 programs. As many of you know, cyclin E1 and CDK2 are key drivers of cancers caused by changes in the CDK pathway. However, for both targets, there have been challenges for conventional inhibitor approaches, and we believe our highly selective MGDs could have key advantages here. Slide 44 highlights some of our in vivo findings for our cyclin E1 program, where we assessed our selective degrader 50969 in cyclin E1 amplified gastric cancer and breast cancer models. In both instances, we're seeing quite potent monotherapy effects in these difficult to treat tumors, including near complete tumor regression in the cyclin E1 amplified breast cancer model. Moving to our CDK2 program on Slide 45. We assess the therapeutic effects of our CDK2 degrader 51443 in combinations with a standard of care regimen of ribociclib and fulvestrant in two ER positive breast cancer models. In both models, the results demonstrated profound tumor regression for the triple combination relative to standard of care treatment. In summary, we're very excited with the strong preclinical results we're seeing from both our cell cycle programs. Our focus going forward is on benchmarking our MGDs for both CDK2 and cyclin E1 to determine the optimal molecule to advance to an expected IND submission in 2026. With that, I'm happy to turn the call back over to Marcus for a summary and concluding remarks before we open up the call to Q&A. Markus?

Thanks, Sharon and Filip for sharing these exciting updates with us this morning. So in summary, I'd like to state we're very, very proud of the progress we've made throughout 2024 and as a matter of fact, in the first quarter of this year, with a number of significant milestones of course still coming up throughout this year next. So let me just quickly summarize on this slide what you've seen today and also give you some guidance on what to expect moving forward. So today, we share encouraging clinical data with you on MRT-6160. These data are mapping a clear path, as mentioned before, to Phase 2 studies. While I can't give you guidance on exact timing for the Phase 2 initiations, I can say that we are working with our collaborators at Novartis to advance this program as efficiently as possible, building on the promising data we shared with you today. As discussed, we're also quite encouraged with what we see early on for our cohort of heavily pretreated castrate resistant prostate cancer patients. It's a small sample size, but given how heavily pretreated these patients are, certainly encouraging. And so in light of that, we made the strategic decision to focus on the cohort not open any other cohorts at this point for all the reasons we've discussed. We expect additional data for this program in the second half of this year. As to NEK7, we also look forward to an IND submission for MRT-8102 and that's going to happen in the first half of this year. And then a potential IND for our CNS optimized NEK7 program next year. Our cell cycle programs are projected to have an IND in 2026 as well and we hope to share more on the exciting work coming from our clean platform in particular in the INI space in the context of more oral INI drugs in relatively near future. And so lastly, as stated on this slide, importantly, we do think we are well-positioned to advance these programs with a very strong balance sheet and providing cash runway anticipated into 2028. And so with that, I would like to open up the call for any questions you have. Operator?

[Operator Instructions] And the first question comes from Kelly Shi with Jefferies.

Congrats on the progress and thank you for taking my questions. So on VAV1, given that it is involved in multiple signaling pathways, How do you decided and also with your partner the most promising indications to pursue based on now available panel of biomarker profiling data? Also have follow-up.

Great question, Kelly. And so obviously, you can tell, we're still preparing for those Phase 2 studies and so final decisions haven't been made. That said, as you know, you might remember lots of preclinical data that we have generated in the past two, three years. I mean, in particular in indications that are driven by either T cells in particular TH17 cells or TB cells combined. And so, as you remember, we had a very strong data on preclinical data in UC, very interesting data in rheumatoid arthritis. I think there's related diseases you could think about and I think the data we showed today from the healthy volunteer trial of course, in that context is very informative because again, where this data of course is ex vivo stimulation not in vivo data from patients. Nevertheless, I think it gives us clear indications that we are hitting the cytokines we want to hit and we can sort of modulate how deep we want to go in regards to inhibiting their secretion.

Thank you very much. And also one follow-up is we see pretty good biomarker inhibition by using this ex vivo simulation approach. Curious how does it differ from the direct in vivo measurement to represent the treatment impact. And what level of in vivo biomarker reduction could we expect in I&I patients based on this result?

Yes. I mean, honestly, I have to put a number out on what percentage to expect in patients, because that will actually depend on the type of disease you're targeting. I think what we find encouraging here is for a healthy volunteer trial, where we looked at what we thought important benchmark healthy volunteer trials were matching up very, very well in regards to depths of cytokine secretion or as a fact inhibition of them. And so I think from here, I'm fairly confident that this molecule can hit the mark in vivo in patients as well. But again, the exact percentage of course will really depend on sort of the actual disease you're treating and the tissue where you're measuring cytokine secretion or levels or inhibition thereof.

And the next question comes from Edward Tenthoff with Piper Sandler.

Great. Thanks. Good morning and thanks for the very thorough and extensive update today. My question has to do with the prostate cancer, the focus on prostate cancer, which makes a lot of sense. Obviously, as men go through multiple cycles, including androgen deprivation therapy, and enzalutamide and abiraterone, their mutation burden changes, where do you think the ideal application is for 2359 and what kind of combinations do you think are worth exploring?

Yes. Thank you, Ed. It's a great question. I think, logically, I think starting off with the second line and the combination with drugs like enzalutamide essentially androgen receptor inhibitors is probably a good starting point. But I think the potential applications have definitely beyond that. So essentially, in a way, I mean, your target might be ended up with the coverage of the same population as enzalutamide currently covers, which is actually both castrate resistant prostate cancer as well as the castrate sensitive prostate cancer. So, actually, I think the ultimate population you can target, this is actually quite broad.

And would you envision combination trials in the future?

The combination trials beyond the combination of enzalutamide. It's certainly a possibility. I mean, there doesn't seem to be any significant addition of toxicity by combining these two drugs together. So I think it's definitely combinable. I think the first step would be to develop this as a combination of this on the androgen receptor agent and potentially again either in the second line or even in the first line when there is a possibility that we potentially replace combination of androgen receptor inhibitors with chemotherapy.

And our next question will come from Mark Fromm with TD Cowen.

Thanks for taking my questions and thanks for the very comprehensive presentation. Maybe on VAV1, just the cytokine changes that you're able to show in the ex vivo simulation and, can you put this into context of maybe what's been achieved with maybe a B cell directed therapy like a BTK or on the T cell side with more of the T cell specific therapies like the IL-17 inhibitors and other single cytokine mechanisms just to kind of put the context of this broad inhibition kind of what are you achieving on each side of the equation? And then also with the dosing, just the PK and the MAD dosing, it looks like you're getting very sustained suppression of VAV1. Should we think about extended dosing beyond once daily to maybe test out weekly or anything like that in some of these trials that are to come?

Yes. I mean, I'll start with your second question. I think the high level short statement here is, yes, I think what you saw in today's presentation, of course, creates a lot of optionalities in regards to those regimens. I think that's certainly a strength of molecular glue degraders in general, right, with the catalytic mechanism. Of course, depending a little bit on sort of what the re-synthesis rate of the protein is, daily dosing is not the only option you have. And I think that can create interesting opportunities. On how we compare to other molecules, I would say really well, right? I mean, sure, I mean, we looked at what does a BTK inhibitor do at clinical doses, what are the IL-17 and the IL-23 antagonists doing. And again, I think we compare very favorable here. Obviously, not every healthy volunteer trial in that space has been reported out and not every assay protocol is the same. We've used interferon gamma a lot, because that seems to be the one everyone looks at. And I would say we clearly hit the mark here with up to 99% inhibition. Again, it doesn't mean that we need to get to 99%, but I think it's great to have that to see that and then obviously adjust the dose as you want to get to whatever that we think is best for your indication.

Okay. That's very helpful. Then maybe just on the prostate cancer expansion cohort, I recognize it's up to 20 to 30. Are there kind of any interim kind of gating factors that we should think about in terms of the enrollment through the rest of the year?

Yes, I mean, it's a Simon Stage-2 design, so there's an interim efficacy readout. Again, admittedly, this is early, but as we said, super encouraging with that response with the stable diseases. And clearly have just obviously to gain excitement and momentum on enrollment. And so there's an interim efficacy criteria that we look at for full expansion to 20 to 30, but of course, it's not as simple as looking at a response rate, Rob, because I think you also need to look at how heavily are these being pretreated. Of course, needless to say, we've been looking at the early data, not the recently released data, the early Phase 1 data from Pfizer and the combination with the EZH2 inhibitor and to throw it out, I think our patient population here is more heavily pretreated. Everyone, not just the ones where we have equity assessment, the ones that have been enrolled since have some form of a mutation in the androgen receptor pathway. And so obviously we have to put that into the equation. I'm sure there was a lengthy answer to a relatively short question and the short answer is yes, there's an interim efficacy assessment to then go to before 20 to 30.

And our next question comes from Robert Driscoll with Wedbush.

Thanks. Good morning, guys. Congrats on all the progress here. Just a couple of questions. On 2359 for the breast cancer cohort, how are you thinking about the MYC biomarker there and I guess the potential patient population? And then second question, just any extended thoughts on why there appears to be this discrepancy between the preclinical data and the clinical data for the MYC biomarker in the other cancer cohorts?

Yes. So let's start with breast, right? So we look at breast in a very similar way as we look at prostate, right? Like our preclinical data, immediately in satellites and in PDXs, suggests that c-MYC high expression is very widespread. So we don't think we need to hone in on a particular subpopulation, just like for CRPC, no need to have a companion diagnostic in that setting. And just like we've alluded to this interplay between c-MYC and AR, we see this for c-MYC and ER as well. But again, this cohort lags a little bit behind and so we don't really have any data yet from that cohort to share. In regards to biomarker positivity, sure, I mean, you obviously scratch your head, Rob, when you see it. We spent a lot of time looking at real world data sets, not just cell line or PDX data, even real world data sets. I'm sure I think you're probably looking at a situation where our clinical trial population is more heavily pretreated than what you typically get in these real world data sets, not mentioning the companies we got the data from, but definitely more heavily pretreated. And we're using a different assay and again sure we try to make sure that these assays somehow match-up and it's not completely off-site, but sure like small cell 70% to 80% as predicted versus 30%. That is a huge difference and obviously made small cell lung cancer for us a lot more, less attractive on top of the fact that again Schroder standard of cares in that population have changed. And certainly, you're now current population isn't any easier to treat. I think that's our best explanation. And again, sure part of the now focusing with all the data we have, the totality of the data we have on prostate cancer makes a ton of sense.

And the next question will come from Michael Schmidt with Guggenheim.

Thanks for taking my questions. Question on VAV1, obviously the safety profile looked very clean as you described it. Are there any expected on target side effects that you're paying attention to, for example, infections or other things that are interesting?

So you were breaking up a bit, but I tried to answer based on what I thought I understood. So on target potential on target toxicities, I would say really none based on the preclinical data we have. Obviously, four week GLP tox study showed nothing, no test article related findings and we dosed extremely high. We talked about this data a while ago. We have margin C of 500 fold and above based on calculating this off either red or signals. All the information we have, I mean, we did immunophenotyping in CYNOS and suggested this immune modulatory and not immune suppressive. Can you absolutely exclude infection risk? I'd say no. I think no one in this field, no one in I&I can actually confidently do this. I think it's obvious there as a risk, but again based on everything we've seen so far, we're not concerned at all. Obviously, we do have longer term tox studies in hand as well and we haven't disclosed any details there, but I think we did make a statement in today's presentation that clinical data combined with the long term tox data we now have gives us a lot of confidence and that's a clear path.

Okay, great. Thanks. And then a question on the GSPT1 program, just sort of reconciling some of the data that was presented today. Have you looked at correlating GSPT1 degradation with clinical activity in the patients so far? And I don't know if you disclosed the tumor type that one responder in the biomarker positive patients was to the lung cancer patient or neuroendocrine and then same for the unconfirmed response in non-biomarker?

Yes. So the PR that we saw in the biomarker positive patient during dose escalation, there was a neuroendocrine bladder characterized by extremely high expression of N-MYC, almost let's call it a signature patient for the setting, but again fair to say and we've discussed it, that sort of high N-MYC population sadly was like rare, not as frequent as we had hoped even in your endocrine tumors. But again, certainly a patient that gives us confidence that the drug works. And of course, in the patient we saw the 60% some percent degradation of TSPT1. In totality, although it's not many patients as you can tell in the biomarker positives, we've seen very decent levels of degradation, 60% to 70% in line with the preclinical data and expectation. We have not received yet any data from prostate mostly because not just mostly, simply because we weren't able to get the clear biopsies. These are not trivial things again. We're always happy when we get the screening biopsies and I think we've done really well. We are getting that second biopsy. Again, we have a very decent success rate there with about a third of the patients, but we're not getting that on everyone and sadly for prostate we haven't gotten the paired samples yet.

The next question comes from Eric Joseph with JPMorgan.

Thanks for taking the questions. Good morning. Maybe just one question on the VAV1 program. Anything you can share at this point in terms of how Novartis might be thinking about duration of the initial Phase 2 trial? And I wondered, here just given the 7 day MAD portion of this study, is there any chance of I guess, masking your own comfort on the safety side, whether you expect any sort of intermediate length Phase 1b type trial before moving into a longer randomized Phase 2 program? And then on the GSPT1 program, just having focused in prostate cancer going forward, can you just talk a little bit about your sense of how MYC expression tracks with line of treatment? What is it there's any, I guess, variation as patients are more heavily pretreated?

Yes. So I start on the -- your VAV1 question. And I think again best answer I can give you is work in progress, trial designs are being worked on. No details disclosed. I think the best assumption here is pretty much going to be standard designs. I think with regards to the length of the treatment in MAD, yes, it's seven doses, but of course the upside here is as you were able to see in the presentation, VAV1 levels stay down for an additional seven days from a safety assessment with the additional one week of collecting safety observations, right, we've essentially recorded two weeks of low VAV1 with a total of three weeks observation. And so I think for whatever the length of the Phase 2as are, we're in reasonably good shape here. And so again, I've said it multiple times, it might sound like a broken record, but this really gives us a clear path into these Phase 2a trials. On 2359 and c-MYC, again, and that's why we are so excited about it. We've seen c-MYC up and correlating to AR really throughout the lifecycle of prostate cancer. It's kind of a weird name for a firm. And so I think that makes it a lot easier as some of the smaller L and N-MYC indication. So, I think as soon as you have an AR driven cancer, c-MYC seems to be quite relevant and almost there. So no need to go in and define expression levels up from and again early but so far, the data we're seeing in many ways sort of confirms them.

The next question comes from Ellie Murrell with UBS.

Hi. This is Jasmine on for Ellie. Thanks for the update in our question. A couple on, NEK7. First, can you remind us of the level of degradation that you'd like to see here to be potentially supportive of efficacy? And then second, can you elaborate a bit on the decision to plan Phase 1 proof of concept in the pericarditis population versus some other options?

I'll start with the expected degradation level. I know that's always a favorite question from folks. And I'd say, again, if you just look at the data we have in this stack and in previous stacks, 80% degradation, at least in the ex vivo stimulation assay, can give us pretty much 100% inhibition of secretion of IL-1 beta. And so I'd say 80% is probably what we're aiming for in single and multiple ascending dose studies. As always, I throw out sort of the precautionary, this will also depend a little bit on assay line. I think what we have in this presentation is based on Westerns. As we go into the clinic, obviously, we will switch over to flow cytometry because that has proven very robust in our VAV1 trial, definitely less noise given with Western or given targeted mass spec, which we had actually used for GSPT1 and are still using. Filip, do you want to address the pericarditis question?

Yes. So pericarditis is obviously like one of the indications, but I mean for NEK7 indication even in the cardioimmunology space is actually much broader than that. What's actually nice about pericarditis is that the development pathway is actually relatively well defined and definitely scalable. Does that answer your question or did I leave something out?

Yes, that's helpful. Thank you.

The next question will come from Derek Archila with Wells Fargo.

Good morning. This is Yvonne for Derek. Thanks for taking our questions. A couple from us. So first on the VAV1 program, kind of like what are the gatekeeping steps remaining to initiate the Phase 2 studies? Have you shared is there any specific milestones trigger by the initiation of the studies? And on the GSPT1 program, just how much data should we expect in the second half of the year update for the prostate cancer cohort?

So on VAV1, I mean you saw the clinical data, right? So everything we need to know from the SAD/MAD, including safety of course, which looks very favorable is here. There's a couple of bridging studies that are being done around formulation, so to get to something that's more scalable for larger trials or even for later commercialization. And then the typical things that need to be done, profit cost need to be done, profit calls need to be written and presented to the FDA. So again, I think like most of the work is done, clear path into Phase 2a studies now. Can you repeat the 2359 question?

It's just in the milestone.

Oh, actually, sorry, back to VAV1 milestones, yes, there are Phase 2 initiation milestones in our agreement.

Thanks. And the GSPT1 question was how much data should we expect in the second half of the year update for the prostate cancer cohort?

Yes, I mean, again, hesitant to give you a specific patient number beyond what we said, right? I think we can expand here based on pre specified criteria into 20 to 30 year patients. I think the excitement from the investigators is there. And so I think there's going to be a sizable upgrade by the second half of the year in regards to number of patients we will have treated. But again, I'm hesitant to give you a specific patient number.

I show no further questions at this time. I would now like to turn the call back over to Markus for closing remarks.

That was great. Thanks, I just like to thank you to everyone for dialing in today and obviously look forward to presenting more and updating you in the course of this year. Thanks everyone.

This does conclude today's conference call. Thank you for participating. You may now disconnect.