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J.P. Morgan 42nd Annual Healthcare Conference 2024

Jan 9, 2024

Eric Joseph
Senior Biotech Analyst, JPMorgan

All right, great. Good morning. I'm Eric Joseph, Senior Biotech Analyst with J.P. Morgan, and our next presenting company is Kymera Therapeutics. Presenting on behalf of the company is CEO Nello, excuse me, Nello Mainolfi. There is a Q&A session after the presentation, so just raise your hand, we'll bring a mic over to you. And for folks joining via webcast, you can also submit questions via the portal. So with that, Nello, thanks for joining us.

Nello Mainolfi
Founder, President, and CEO, Kymera Therapeutics

Thank you, Eric. Thanks for the invite. Thanks, everybody, for joining. I actually like this room, very unique in the hotel. So we'll spend the next 20-25 minutes to just go over Kymera story, where we are, where we're going, our data, our ambition, and our strategy. So start, I think it makes sense to start really with what we're trying to build here. We believe that we have a once in a generation opportunity to build a company that can change how we think about treatment paradigm using novel modality, in this case, using targeted protein degradation. I think it's fair to say that we've taken a unique approach to building a company on a novel modality.

I think our strategy, our target selection choices, how we built our capabilities have been quite unique, and I think have resulted in, in a company that is doing things that, are really at the cutting edge of both protein degradation in general, but I would say R&D. And we'll go through some of those as we go through the presentation. One thing that I'm most proud of is our ability to execute. Since we actually became a public company, which was in 2020, we put four programs in the clinic. We've demonstrated, as you see, high fidelity of translation across, these programs from preclinical into the clinical studies. We've shown early proof of concept in both immunology and oncology.

We validated our target selection and our molecular design, how we design and characterize our molecules, and we continue to being on track to continue with this high level of execution. We expect to have up to 10 novel INDs in the first 10 years of the company. Something that we announced today, so we were fortunate to close a financing, actually early this morning, in the middle of the night, actually, on the West Coast time. And so we have roughly $750 million that will allow us to extend our runway now into the first half of 2027.

So we have 3-year plus of runway that will allow us to really, create lots of value creation opportunities, to execute on a lot of value creation opportunities across our pipeline, as you'll see. So we're firm believers that every platform company, if we want to define Kymera as that, is only going to be as good as the program, the products, the medicines that it generates, and it all starts with how we think about target selection. And again, here, I think Kymera has taken a very unique approach.

We work only on targets that have not been drugged or drugged poorly, where protein degradation is the only or best way to tackle that particular problem, in pathways that have been validated clinically, ideally, where there is human genetics data on that particular target, where we have a path to differentiation early in clinical development, in large clinical and commercial opportunities, and you'll see this theme over and over again in the presentation today. So we've been where we've been early on, building capabilities, striking several partnerships that allowed us to forward integrate the company. I think in the past 2-3 years, we've done what I think is really, really difficult to do, which is translating a novel modality into the clinic, and we've done it, I think, better than most.

As you'll see, we've shown high degree of fidelity of this preclinical data into impactful clinical data. We've initiated two phase II studies with our partner, Sanofi, in large immunology indications, as you'll see. And now we're really focused on forward integrating the company. I always say you need to earn the right to build the next phase of development. I believe we have earned that right, and so now we're focused on large clinical and commercial opportunities. We are increasing our investment in I&I. That does not mean we're only going to do I&I, but you will see that is going to be a major theme of Kymera in the near future. And we'll complete several proof-of-concept studies and finally initiate registrational studies in the next few years. So exciting time ahead for the company.

So this is a slide that represents four vignettes of our four clinical programs. Without going into every detail, maybe starting from the top left, we've shown that we can go after a target like IRAK4, a scaffolding kinase, degrade the target fully in humans, and demonstrate early proof of concept in HS and AD patients. We've shown with STAT3, we can degrade for the first time ever this target in humans and impact patients with hematologic malignancies. We've shown with MDM2, where we can differentiate the pharmacology if you use a degrader versus an inhibitor, and demonstrate degradation impact on the pathway, and in this case, impact on, in particular, solid tumors without the typical MDM2 hematox.

And then with IRAKIMiD, which is a program that we actually decided to discontinue for business reason, also there, we showed exceptionally well the translation of degradation and safety from preclinical into the clinic. So a snapshot of our pipeline, I will actually close on a slightly different view of our pipeline, so I won't spend too much time. But just to remind you, we have a pipeline of oral small molecule degraders for immunology. We have an IRAK4 degrader in HS and AD in phase 2, as I mentioned, with Sanofi. We have a STAT6 degrader we disclosed at our R&D day last week that is about to enter phase 1. We have a TYK2 degrader that we also announced last week, which is entering the clinic in the first half of next year.

Then we have our oncology pipeline with exciting data that we've shared at ASH or in November of last year. This year, we'll have more robust data set, together with, our plan for late-stage development. So lots of upcoming data readouts in both 2024 and 2025. So I want to take a few minutes to talk about our immunology pipeline. As I mentioned, and our strategy, as I mentioned, this is an area that we're increasing our investments. We think we're uniquely positioned to change how immunology is treated with oral small molecules. I don't need to make the case, but I will, which is, the market potential for immunology are vast. It's probably the largest area. Drugs that are sold for immune inflammatory disease are marketed in immune inflammatory diseases.

They cover not only traditional immunology, but also other areas like CNS, oncology, and others. These have a large, again, market impact of roughly $250 billion. 75% of those drugs are injectables, so only 25% or less are oral drugs. This is what Kymera is on path to change. So if we start this slide on the left, what biologics have done is validating that there are key signaling cytokines that have transformed how we treat patients with immune inflammatory diseases. If you look at IL-17, IL-23, IL-4/IL-13, these are biologics that have changed the understanding of diseases and again, patients' lives. These are obviously injected, can be inconvenient for patients and also costly to manufacture.

There was a survey run by our colleagues, our industry colleagues in J&J, that they asked about 500 patients, "If you had an oral that would have a similar profile to an existing biologic, would you switch?" And 75% of them would say- said yes. So clearly, there is an unmet need in immunology for oral agents. What traditional small molecules haven't been able to do is they've been able to offer the convenience, but not the pharmacology of biologics. So they always have come short on providing the level of efficacy that a biologics can. We'll show an example here of a TYK2 inhibitor versus an IL-23. I can give you other examples, an IL-17 oral versus an IL-17 biologics, and this is not because small molecules are not potent enough.

They just don't have an ability to block the pathway at the same level. This is where oral, oral degraders come in. We've shown you already with IRAK4, we will show you again today that we can offer the same level of pathway blockade, saturating pathway blockade of a biologics with the flexibility of an oral molecule. This is why we believe we're poised to change how we think about immunology. So these are the three pathways that we'll discuss today. These are our publicly disclosed programs. We believe this is potentially, at least we like to believe that, potentially one of the best, if not the best, oral immunology pipeline out there. With IRAK4, what is the value proposition? So there is plenty of validation for upstream biologics. Just recently, AbbVie disclosed IL-1 biologics activity in HS in TNF refractory patients.

We've seen activity with IL-18 biologics, IL-33 biologics, IL-36 biologics. If you go after IRAK4 node, we can actually recapitulate the biology of all those cytokines in a single oral drug. So in this case, actually, we should have superior pathway efficacy than upstream biologics. You need a degrader because only degrader can saturate the pathway signaling in this particular pathway than an upstream biologics can. So this is a master regulator of innate immunity. We'll tell you where we are with these programs, as I said, phase 2. STAT6, this is one of the most probably elegant stories of validation of a pathway that Regeneron and Sanofi have done on the IL-4/13 receptor. Dupilumab is going to be a mega blockbuster drug.

STAT6 is the selective obligate transcription factor, so we can actually translate the biology of the receptor one to one to the transcription factor. So by degrading STAT6 with an oral degrader, as we will show you, we can achieve dupilumab-like activity with an oral molecule. TYK2, so this is IL-12, IL-23 interferon pathways. Human genetics have told us that if you remove TYK2, you're protecting humans from a variety of immune inflammatory diseases. Small molecule inhibitors have come short of human genetics. With a degrader, you can mimic human genetics and really challenge biologics-like activity, as you'll see. So this slide just summarizes where we are. As I said, IRAK4 is in phase 2. STAT6 will be in the clinic in the second half of the year, TYK2 in the clinic in the first half of 2025.

Indications are vast, so we are in HS and AD for IRAK4, but the biology is relevant in a wide variety of diseases like RA, asthma, COPD, IBD, and others. So this is a huge pipeline in a product. For STAT6, you know, as I say, that the R&D, they were really standing on shoulders of giants, the work that Regeneron and Sanofi have done to expand the indications has been impressive. With an oral, not only we can go after the same indications, but we can actually move beyond. So AD, asthma, COPD, EOE, PN, and as I said, we have opportunities to go beyond that. And with TYK2, again, with the biologics-like activity as an oral drug, many indication opportunities to compete with biologics, IBD, skin inflammation, lupus, and others.

So I, I'm not gonna go through each of the block here, but this just tells you for each one of these diseases, this is the market share of biologics approved in these indications. And as you can see with our drug, we can go in several of these potential market opportunities. So it's not a huge leap of faith to build the confidence to believe that each of these drugs could be a multibillion-dollar opportunity. So I won't have the time to go. I'd love to have the time, but I've been told by Eric I only have 20-25 minutes, so I'll just give you two vignettes on IRAK4 and TYK2. I'll spend a bit of time on STAT6, and then a final closing on the oncology programs.

So I've touched on a lot of IRAK4, the premise, the pathway validation in biology, the huge market opportunities, we believe more than $50 billion in market opportunities. We have demonstrated, thanks to Jared, our CMO, and his team, we've demonstrated some really impeccable clinical data, deep target degradation in humans, impact of cytokines in blood and skin of healthy volunteers and patients. We've shown impact on signs and symptoms of HS and AD in a small study, and now we're, again, as I said, in a phase II study with Sanofi, that we expect to complete recruitment for this year and data in the first half of 2025. So extremely exciting program. Next year will be a big year for the data readouts.

TYK2, again, the pathway validation is there, the target validation is there, the human genetics validation is there, so it's one of the most probably coherent story in immunology out there. What we're offering here is a superior agent to small molecule inhibition that can match biologic profile, thanks to our ability to replicate the loss of function human genetics that small molecule cannot achieve. This is also a large market, as you see, $20 billion plus that are drugs that are approved in these indications. Again, with an oral that can compete with biologics, we believe we can have a huge impact in those areas. And again, we are in IND-enabling studies with the plan of initiating our phase I early next year. So I wanted to spend a bit of time on STAT6.

This is a program that we're extremely excited about. This is a program that fits perfectly what Kymera is about. It's going after undruggable targets in areas that have been validated, that no other modalities can do, and developing profiles that are extremely compelling, that really make the case for an oral degrader in immunology. So, as I said, the path... The rationale is clear. This is the selective and only transcription factor downstream on IL-4/IL-13 biology. So if you block the pathway with dupilumab, STAT6 will not signal. If you block STAT6, the receptor will not signal. So we have a coherent one-to-one relationship with the IL-4 receptor alpha, which is the target of dupilumab. We have strong human genetics.

If you have gain-of-function against STAT3, STAT6, sorry, we see severe allergic diseases, atopic diseases in humans. And then, as we said, the pathway validation with many opportunities that Dupixent has been approved or is in development in. What personally I'm very passionate about is actually reaching hundreds of millions of patients, and this is a serious statement. The fact that a biologics is an exceptionally effective drug, but has limitation in terms of market access, the opportunity here is to serve children and adults around the world that suffer from TH2 inflammation, which actually is a field that only now we're starting to learn, and these are only a subset of indications that we can go after.

So just quickly through some data, this is the most potent oral small molecule that I've ever seen in my career. It's a double-digit picomolar degrader of STAT6, which usually it's you would, you'd assume it's 100-1,000-fold more potent than your typical small molecule. Very comprehensively, we've gone through the degradation across all the relevant cell types. I won't go through it, but all the cell types that are relevant to TH2 inflammation, again, all double-digit picomolar. This is an exceptionally selective compound. We have absolute selectivity across any other protein in the proteome, including all the other STATs. Now, when we look at pathway inhibition, we use biomarkers that have been used to develop Dupixent, TARC, periostin, CD23 in B cells, and so we're showing here that we're able to block the pathway fully.

Not only that, we're able to block the pathway more potently than dupilumab. An oral molecule that is more potent than a monoclonal antibody. You see the potency, two-digit picomolar, dupilumab is three-digit to nanomolar potency. You see the curves in the bottom just to give you a visual sense of what the numbers show. Importantly, we're able to degrade STAT6 fully with low oral doses. This is dosed once a day. We've shown it in every species, from rodent to non-human primates. With low oral doses, we're able to deplete the target fully. This is an exciting slide because I would argue this is probably one of the most relevant translational model of TH2 inflammation.

This is a house dust mite mice model that has been developed by Regeneron to characterize TH2 inflammation in rodents, and this is a humanized mice, so that dupilumab could react and interact with the receptor. Here we dose dupilumab twice a week for four weeks. This is the most aggressive dosing regimen that corresponds with 300 mg every other week in humans, and we dose our compound once a day for 31 days and in a dose-response manner. And you'll see in our slides that in IgE, TARC, periostin, eosinophil infiltrates, these, if you look at the development of dupilumab, these are biomarkers that have been followed along the development path of the drug. In each one of these, we're at least as active, if not more active, than dupilumab.

So the potency that we saw in preclinical human cells have translated into also efficacy models. And again, it's quite rare normally to see a small molecule or a drug to be more potent, more active in efficacy model than a monoclonal antibody. So just to wrap up on what I've shown you, obviously, the pathway's been exceptionally validated. This is, you know, gonna be a $20 billion plus market that I think we're poised to be the best-in-class drug in. And we've shown you, hopefully you will agree, some impressive data, and we're excited to initiate our phase I study soon. What I will add is we've extensively looked at safety of this drug and at doses, at dose and exposure that were more than 40-fold the efficacy that you've seen, and we've seen no adverse events, no changes in our studies.

So this is not only a super active drug, but so far exceptionally safe drug. So I'll spend two minutes on our oncology pipeline and some data upcoming in 2024. So in oncology, our strategy is going again after undrugged targets that have not been drugged or drugged well, where we have opportunities in both liquid and solid tumors, and that's really our value proposition. So with STAT3, which is a program that we shared exciting data at ASH, we've seen in preclinical species, single-agent activity in hematologic malignancies, and that has translated into some strong major responses in both CTCL and in Hodgkin's lymphoma that we shared at ASH. In solid tumor, we've seen robust synergistic activity in combination with PD-1, but actually recently, we've seen preclinically some single-agent antitumor activity also in solid tumors.

So we're working to bring those type of patients that we haven't disclosed to the study to hopefully build the case of STAT3, not only as a preferred partner for a PD-1, but also as a single or a combo agent in targeted therapy. So stay tuned. We will show that this year. We've shown in the clinic, from that perspective, a really strong interferon response in tumor biopsies that is coherent with the biology of PD-1 synergy. So liquid tumor, single-agent activity, solid tumor, both single-agent and combo activity in a wide variety of tumor types. We've shown you on this slide - I won't go into the details, but on the left, we have really robust degradation of STAT3 in blood and tumors, around 90%.

We've shown that we can have an interference signature in tumor biopsies, and then we've shown robust clinical activity. So hopefully in 2024, we're thinking about roughly middle of the year, we'll be able to update on the phase Ia, including our path to further development. For 253, this is another really exciting program. We have demonstrated preclinical activity in both liquid and solid tumors. We've gone into the clinic. Actually, our first patient that was dosed, we see a robust major response. More importantly, our thesis here is by degrading the target, we create a therapeutic index that small molecule inhibitors don't have because we commit to apoptosis, and we can actually let healthy cells recover. And this is played out already on our first patient.

We saw – I think it was 6+ months – maintained response without any signs of heme toxicity, which is unheard of in this space. And so hopefully, also in 2024, we will be able to update on a broader, more robust data set and also share what is our ambition in this space, which is really building ideally a tumor-agnostic selection biomarker that will allow us to develop these across a variety of indications, both in, in heme and solid tumors. This is some data that we've shown. It's on our website. So I'll close here today. So as I said, we have a cash runway into the at least first half of 2027.

We have really exciting data readouts in 2024 on our oncology pipeline, in 2025 for phase II data with 474, phase I data on STAT6, which we will be able to demonstrate, hopefully, that we can match the dupilumab activity in humans. And also in 2025, we'll have our TYK2 degrader, which we believe in phase I, we should be able to demonstrate our superior profile over small molecule inhibitors. So I will leave you here with our 2024 priorities. We had a press release today. All of these is also in that press release, so please, take a look at that. All these slides and more will be on our corporate deck on our website. Happy to take any questions.

Eric Joseph
Senior Biotech Analyst, JPMorgan

Great. Thanks, Nello.

Nello Mainolfi
Founder, President, and CEO, Kymera Therapeutics

Should I sit or stand? What's the-

Eric Joseph
Senior Biotech Analyst, JPMorgan

It's your choice.

Nello Mainolfi
Founder, President, and CEO, Kymera Therapeutics

Okay, I'll stand.

Eric Joseph
Senior Biotech Analyst, JPMorgan

There are already some questions submitted both in the portal and emailed to me, and so that must mean there must be questions in the room. But let me start off with some of these questions that have been submitted on your new oral inflam programs. For STAT6, the question here reads: "Seems like it's involved in PPAR gamma-regulated gene expression", and so I guess it really, the question really speaks to your comfort with the safety profile of complete STAT6 downregulation. I guess knockouts show some lipid accumulation in the liver, some impact on cholesterol regulation. So, how do you mitigate the risk of such side effects in the clinic, and yeah, that's it.

Nello Mainolfi
Founder, President, and CEO, Kymera Therapeutics

Yeah. So, I mean, we need to look at, you know, the biology that is being understood for this target. Obviously, you, you'll always find some paper out there that is experimenting on the target. What we know about this biology? We know that it's the selective transcription factor for IL-4 and 13 biology. What we also know is that there is no biology that has been proven that targets STAT6 without going through the receptor. So we believe, based on the data we've generated, and probably it's okay for me to say that we've done more work on this target and pathway, or at least on this target, than anybody out there.

And so we've been able to show that there is coherent biology between the receptor and the transcription factor, and if you block the receptor, you block the transcription factor. If you block the transcription factor, you block the receptor signaling. So this is what is known. What is also known that the mouse knockout are totally healthy and are fertile and viable. So this tells you if you don't have STAT6 from birth, you're protected from any kind of adverse event. What I will add is that we've done extensive safety studies. Obviously, they've been so far limited to 2-4 weeks, depending on the type of studies.

As I said, at doses of 300 mg per kg and at exposures that were well above 40-fold the efficacious exposures, we've seen no changes, no adverse events, no clinical chemistry changes, no histopathological changes, including all the, all the comments that you were making on any of those parameters. So we are at full confidence in the data we've generated, and obviously, we're excited to demonstrate that in the clinic soon.

Eric Joseph
Senior Biotech Analyst, JPMorgan

Just given the central role that STAT6, you know, has on both the IL-4 and IL-13 axes, is it your expectation that perhaps, perhaps there's some clinical efficacy along efficacy kind of left on the table that might be addressable with near complete STAT6 degradation?

Nello Mainolfi
Founder, President, and CEO, Kymera Therapeutics

So, you know, when we started this program. Dupilumab is an amazing drug. If you talk to physicians and patients, which we've been fortunate to being able to do, they will tell you that it's an amazingly effective drug, and it's a really well-tolerated drug. When we set out to start this program, our goal was not to have to match dupilumab activity because we recognized that, you know, usually for biologics, you have a different bar. We found ourselves with data that you've seen that tells us that with 90%... First of all, we're more potent at the molecular level, which is very unique. But also, when you go in vivo at a 90% degradation, we're able to deliver the saturating pathway blockade of a monoclonal antibody.

So we're going now with we have raised our own expectations that we can match that type of activity. I think going beyond dupilumab, if you're looking at their saturating dose, I mean, if you look at how it's dosed in patients, as you know, there is different paradigms, depending on indications, age, et cetera. I think it will be we will be fortunate enough to set the bar at a biologic stage for a molecule that, you know, is gonna be a $20 billion drug in the next four years.

Eric Joseph
Senior Biotech Analyst, JPMorgan

Yeah. Yeah, I mean, and, and, you know, just given the access constraints with biologics, right? And, you know, the preference for orals, which makes a lot of sense. I mean, perhaps the bar is a little bit relaxed compared to biologics. I guess, where do you think you sort of what kind of efficacy profile do you think needs to be achieved to be commercially competitive in this space?

Nello Mainolfi
Founder, President, and CEO, Kymera Therapeutics

I think, I mean, there's been surveys out there saying that if you have 50% the efficacy of dupilumab, you're gonna have a successful drug. So I don't wanna go into percentages, just putting things out there. I think we have a high bar of allowing patients to actually be treated with a safe and effective drug. I think I'm serious when I say that we have an opportunity to help children and adults that don't have access to that drug. You know, there are children that have asthma, and you have to have a number of asthma, acute asthma episodes per year to access dupilumab. So that's what we're trying to do. We're trying to help people with a drug that is effective and safe, and will change our thinking about TH2 inflammation.

Eric Joseph
Senior Biotech Analyst, JPMorgan

Okay. Are you able to make the contrast between your degrader and the activity profile of Replenix's STAT6 program? Interestingly, that program is now partnered with Sanofi. I wonder whether, you know, which is also a partner of yours on 474, whether they were aware or had privy to what you were doing on the STAT6 program here.

Nello Mainolfi
Founder, President, and CEO, Kymera Therapeutics

You know, I'm not gonna comment on your second question.

Eric Joseph
Senior Biotech Analyst, JPMorgan

Sure.

Nello Mainolfi
Founder, President, and CEO, Kymera Therapeutics

But on the first one, and I'm actually not even gonna comment on the actual company, which I don't know enough to have an opinion. I usually keep it for myself. What I will say is that we've done a tremendous amount of work on this pathway. We will not share everything that we've done in this pathway. We understand that if you wanna have a profile of a biologics, the only way to do is by using a degrader. That is being recapitulated in our own hands, and this is the reason why we have a degrader that is moving in the clinic.

The bar to block this pathway fully at steady state is hard, and I think the degrader with the catalytic mechanism allows us to do that in a way that other modalities are not able to do.

Eric Joseph
Senior Biotech Analyst, JPMorgan

Oh, yes, please.

Speaker 3

Yeah, sure. I'll,

Eric Joseph
Senior Biotech Analyst, JPMorgan

Just wait for the microphone, actually, one second.

Speaker 3

Thanks for the presentation, and I was wondering, because I saw you have a projection of doing, like, multiple sclerosis and some other tumors. So I was wondering, like, how's the blood-brain barrier penetration for the oral degraders system, and how is that affecting the treatment? Thank you.

Nello Mainolfi
Founder, President, and CEO, Kymera Therapeutics

So I mean, I won't comment on the actual numbers of brain penetration. I think what I will say is that, as others have shown, degraders can be active in CNS indications.

Eric Joseph
Senior Biotech Analyst, JPMorgan

If you kind of look across your program so far, you've been able to successfully drug different classes of proteins, I'm thinking kinases, transcription factors, I think targets both in the cytosol and the nucleus. I guess I wonder whether there are other classes of proteins that you think are next on the sort of beach, another class of proteins that represent another beachhead, I guess, from demonstrating sort of a druggable proof of concept, perhaps inner membrane proteins.

Nello Mainolfi
Founder, President, and CEO, Kymera Therapeutics

Yeah, I mean, it's a great question. I always go back to what problem we're trying to solve, right? We usually don't, not that you're, not that you're saying that, but usually don't think about, you know, let's go after GPCR because it's a cool target, right? I think we always try to think about what clinical problem we're trying to solve, what is the pathway that we're in, and then after that, what is the type of target that we believe we're gonna drug in a superior and differentiated way. So the reason why we focused a lot on scaffolding proteins and transcription factors is because those are not easily drugged by any other modality, especially by small molecule inhibitors. And so that's our North Star continues to be that. That doesn't mean that we'll only work on transcription factors and scaffolding protein.

But, you know, if I had to say the next program that is going in the clinic right now, without disclosing what it is, it's probably another transcription factor. But do we have other target types that are not those? Yes. Again, it's all about what problem we're trying to solve. And I'll stop here before I talk about things that I shouldn't.

Eric Joseph
Senior Biotech Analyst, JPMorgan

I'll take a question here from the portal. Perhaps just come back to make the distinction in the profile, the potential activity profile between your TYK2 degrader and small molecule inhibitors.

Nello Mainolfi
Founder, President, and CEO, Kymera Therapeutics

Yeah.

Eric Joseph
Senior Biotech Analyst, JPMorgan

- of TYK2. And perhaps along those lines, what PD markers might allow to make that distinction clinically?

Nello Mainolfi
Founder, President, and CEO, Kymera Therapeutics

Yeah, that's a great question. So, you know, we didn't have the time to go into the slide. I selected to talk about STAT6. Next time, we'll talk about TYK2. Maybe in your next conference, Eric, not next year, but the next one you'll invite me. So, so for TYK2, we have two differences. One is a biological difference. So the biological difference is that if you remove the target and you remove all catalytic scaffolding proteins, and if you do it selectively, you will have the ability to block IL-23 interferon and spare IL-10. So that's very differentiated from the approved drug in this space. Now, if you have more selective, and let's say you spare IL-10, we've shown that both in innate immunity genes and interferon genes, we're able to block them substantially differently than your typical selective small molecule.

That is because there is a biology of removing the target. So that's one. Then the second one, I think it's widely accepted, hopefully, I'm not breaking this news, that small molecule inhibitors in this class, but in most other classes, do not reach full inhibition at steady state. That is just driven by occupancy-based PK/PD. It's just hardly ever that I've seen in my career that happen. So the additional differentiation is that with degraders, that we've shown across all of our programs, you can reach full pathway engagement, meaning full degradation, 99%+, at steady state. So if you combine a biological difference with the steady-state degradation difference, we believe that profile would be meaningfully different.

We can demonstrate that by demonstrating, unlike any others, that, you know, you can go in a healthy volunteer and show that you can block TYK2, both at the molecular pharmacological level, I mean, removing, and then you can show what is the effect in terms of this downstream, both cytokines and genes, that is differentiated from from small molecule inhibitors. And obviously, eventually, the differentiation will play out in clinical studies, in placebo-controlled randomized studies.

Eric Joseph
Senior Biotech Analyst, JPMorgan

Okay. Any other questions from the floor? All right. Oh, yes.

Speaker 3

Those studies. You mentioned, who are you doing the studies with?

Nello Mainolfi
Founder, President, and CEO, Kymera Therapeutics

Which study?

Speaker 3

Is there, like, the multiple phase II's and potentially the phase I?

Nello Mainolfi
Founder, President, and CEO, Kymera Therapeutics

With, what do you mean by with?

Like, are CRO or is Sanofi doing them internally, or?

This is all things that we're doing at Kymera.

Speaker 3

Okay.

Nello Mainolfi
Founder, President, and CEO, Kymera Therapeutics

So IRAK4 is the only program that is partnered with Sanofi. Everything else is wholly owned. These are program studies pre-clinically that we've done. As we go into the clinic, we'll work with CROs, obviously, to enable our clinical investigation, and these all will be obviously run and controlled by Kymera.

Speaker 3

Thanks.

Eric Joseph
Senior Biotech Analyst, JPMorgan

Okay, great. We'll leave it there for time. Thanks again, Nello.

Nello Mainolfi
Founder, President, and CEO, Kymera Therapeutics

Thank you.

Eric Joseph
Senior Biotech Analyst, JPMorgan

Thanks for attending the session.

Nello Mainolfi
Founder, President, and CEO, Kymera Therapeutics

Thanks.

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