Kodiak Sciences Inc. (KOD) Earnings Call Transcript & Summary
September 28, 2026
Earnings Call Speaker Segments
Operator
operatorThank you for standing by, and welcome to Kodiak Sciences' DAYBREAK webcast. [Operator Instructions] Please be advised that today's conference is being recorded. Now it's my pleasure to turn the call to Victor Perlroth, Chief Executive Officer. Please proceed.
Victor Perlroth
executiveThank you for joining the Kodiak Sciences' DAYBREAK Topline data results conference call. I'm Victor Perlroth, Kodiak's Chairman and CEO. The webcast portion of this call contains a slide presentation that we will refer to during the call. Those following along on the phone who wish to access the slide portion of this presentation may do so on the Investor Relations section of the Kodiak website. An archive of the webcast will be available on our website. Let's turn to Slide #2. I would also like to remind you that remarks made on this call today include forward-looking statements about Kodiak. A more complete description of these and other material risks can be found in Kodiak's filings with the Securities and Exchange Commission, including its Form 10-Q for the quarterly period ended September -- on June 30, 2026, which has been filed with the SEC. Kodiak does not undertake any obligation to update publicly any forward-looking statements, whether as a result of new information, future events or otherwise. Turning to Slide #3. It's with pleasure that I welcome all of you to our DAYBREAK primary endpoint results webcast. Turning very briefly to the Slide #4. We where we can take a moment to reflect on the length and also the importance of the journey that we have been traveling together with our Kodiak stakeholders of employees, patients, physicians, financiers, family and friends. In particular, we like to refer to this for quadrant plot here on Slide 4. As Dr. Brown said it nicely in his quote in our press release, years after [ Lucentis ] was approved for wet AMD, the Holy Grail remains the same: robust anatomic disease control and maximal visual acuity gains, i.e., immediacy/efficacy, sustained with less frequent dosing, i.e., durability. Before DAYBREAK and in particular, Zenkuda and Daybreak, durability always came with great sacrifice. And despite best efforts over these 20 years, our results of a community have been incremental. But today and together, we described a tremendous step forward, a step that builds on Kodiak's 17-year history, following what I'd like to call the gentle arrows of science and the harmony of company building and retinal medicines development. On this plot, the upper right quadrant has always been our target zone. I think we've hit the target directly in the middle in the upper right quadrant. On that note, we'd like the data to speak for itself. Turning to Slide #5. Joining me today from Kodiak is Pablo Velazquez-Martin, Kodiak's Chief Medical Officer. And joining us today also are Dr. Charles Wykoff and Dr. David Brown. Both are distinguished physician scientists with an important history of retinal drug development. After our prepared remarks, we will open the call for Q&A. Turning to Slide #6. I'm now pleased to turn the call over to Dr. Velazquez-Martin. Pablo?
J. Velazquez-Martin
executiveThank you, Victor. I would like to take a minute to bring us all the way back a few years ago, and we can move to Slide 7. Almost to these days of investor R&D Day in Kodiak -- sorry, for Kodiak in September 2024 in New York City to remind us how we got here to this moment. At that time, we emphasized our focus to be a learning organization and strengthen our commitment to the journey from data to insights to learnings to action. At that time, we made a variety of critical course correct decisions that led us here. In Slide 7, we continue this intentional journey got us here today. It is my privilege in Slide 8 to introduce this presentation, the primary endpoint results of the DAYBREAK Phase III study in treatment naive with age-related macular degeneration exploring both of our antibody biopolymer conjugate investigational therapies, Zenkuda and tabirafusp alfa tedromer, which will also be called during this presentation as [ Sabeco ]. One important reminder on Slide 8 -- sorry, Slide 9. DAYBREAK the innovative design enable an independent about Kodiak in a [ versus test ] at full clinical and statistical significance. This is important because each molecule had a different objective in this trial. Aligned with this principle, Dr. Wykoff will present the DAYBREAK results for each molecule compared to [ aflibercept ] separately in independent sections. We move to Slide 10, please. And with that, I am happy to pass the presentation to Dr. Wykoff, who will present the efficacy and safety results for Zenkuda first. Charlie?
Charles C. Wykoff
attendeeGood morning. Can you hear me?
Operator
operatorWe can hear you, sir. Please proceed.
Charles C. Wykoff
attendeeThank you. Great to be here with you. It's an exciting time in retina, a lot of ongoing clinical trial programs always enjoyable to digest new data, particularly when it is positive, I think you will see that this is a go forward to the next slide. So DAYBREAK break fascinating Phase III clinical trial for many reasons. First is that it compared two different therapeutics to the same control arm. So a very efficient trial design to digest a tremendous amount of data. We'll first unpack the tarcocimab data and then dive into the tabirafusp food data. So with tarcocimab, the competitor here was [ aflibercept ] fixed Q8 week dosing, 2 milligrams every 8 weeks after 3 monthly loading doses, 225 patients, really the gold standard EYLEA control arm, always important to think about the control arm first. And then secondly, the tabirafusp arm was 4 monthly loading doses upfront, 225 patients and then a highly differentiated trial design here, and we'll go to about that on the next slide in just a moment. But these patients were then evaluated every 4 weeks and could receive dosing as frequently as every 4 weeks but could also be observed at those visits depending on their disease activity. We've talked a lot about disease activity criteria in this space for the last many years, in this trial was extremely strict on when patients were retreated and we'll dive into that. The primary endpoint was change in visual acuity there across three of the time points, weeks 40, 44 and 48, again, comparing tarcocimab with aflibercept, ultimately though a 2-year trial. And all of these were treatment naive wet AMD patients. You can go forward. In many ways, this may be the most important slide -- you go to Slide 12, please. Because the retreatment criteria in any clinical trial trying to look at durability are critically important. And most clinical trials use a retreatment threshold of increased CST of a certain threshold, 50, 75, 100 microns, for example, associated with visual acuity loss, usually 5, 10, even 15 letters of visual acuity loss. This trial was highly unique and none of those requirements were necessary. Specifically, we did not wait for patients to experience visual acuity loss. And there was no CST threshold that would drive retreatment. Instead, we use an AI-based fluidics analysis to look for the smallest amount of intentional and/or subretinal fluid to initiate a therapy. We were trying to practical criteria. In the real world, when we see fluid, we reinject and we don't go longer in between injections. And that's what we tried to recapitulate in this clinical trial using a point of care deployed AI algorithm. So on this slide, you can see examples of what this looks like. On the left is an eye that was dry that did not have significant [ interactor ] serial fluid. In fact, you see no fluid on that central B scan. And then on the right, you see those small intraretinal [ cystic ] space as highlighted in red, which is an indication of not have met any of the other retreatment criteria that I'm aware of in any advanced clinical trial used in retina previously. But it did cross the threshold for volumetric increase, and therefore, that I was retreated at that time point before there was vision loss and before there was a meaningful increase in CST. You go forward 1 slide. So baseline characteristics of tarcocimab versus [ aflibercept ] comparison were balanced. Visual acuity was about 260. And there was balance in the BCVA category, the low limit visual acuity deficit. And CST is about 50 microns in both arms. About 40% of all patients were faced. You go forward 1 time. So this slide demonstrates mean visual acuity change over time, absolute visual acuity actually plotted here on the Y axis. Both of the arms. And importantly, you can see that the primary endpoint was met with high statistical significance, demonstrating not only noninferiority but equivalents of tarcocimab tedromer versus [ aflibercept ]. You can see at the end there, the [ aflibercept ] armed gained 7.6 letters compared to 7.2 with tarcocimab. And you see numerical fluctuations across the year of interest, you see actually slightly higher numerical visual acuity gains due to loading phase there with tarcocimab compared to aflibercept. But again, the key message here is really overlapping visual acuity curves from baseline through the end of 1 year at the primary end point. You can go forward 1 slide. Looking at the similar trajectory here with absolute CST, again, you see overlapping trajectories. This may be the most important data point for tarcocimab for me. If you look at the loading phase is there through 8, 12 weeks, you see overlapping CST curves. No indication of a separation between these curves, meaning that we have achieved that immediacy result were we have achieved complete drying relative to the [ aflibercept ] gold standard monthly dose control arm there in that loading phase. And then after that, you see that characteristic sawtooth pattern in gray when you switch to [ aflibercept ] every 8-week, 2-milligram dosing pattern. And again, you see minor fluctuation with tarcocimab. But again, these values are overlapping, demonstrating equivalents of anatomic outcomes from a CST perspective through the week 48 endpoint. You go forward. So what does this look like from a durability perspective? Because remember, the goal here was to achieve a completely dry retina and then maintain that retina at a dry state, right? We were not allowing significant recurrence of fluid before these eyes got retreated, that is very differentiated from most of the other programs, and I think is a much clearer reflection of how we manage these patients in our routine clinical practice. So despite that strict treat to dry and maintain dry approach, we still had a very large number of patients at in every 24-week or 6-month interval, so 54% majority of patients achieved that, again, within that 48-week time window. Another approximately 30% of patients achieved Q12, Q16 or Q20. And then reflecting the real-world nature of these treatment-naive patients, about 15% to 17% were in every 4- or 8-week interval. I really like looking at that because it shows me that this is a representative patient population for what we expect in the real world. Some patients do need very frequent dosing, and I'm glad that we included that population of patients in this clinical trial and yet the large majority are at every 24-week dosing without recurrence of fluid, you can go forward. From a safety perspective, we saw no cases of interact inflammation here and or fleet arms, no occlusive retinal vasculitis no end optimitis. There were three cataracts, one in the tarcocimab arm for 0.5% and two in the [ aflibercept ] arm at 0.9%. You go forward 1 slide. So this slide summarizes that tarcocimab comparison with [ aflibercept ], Zenkuda as it's also known. And again, the primary endpoint here was met showing equivalent the loading phases and through the extended dosing phases through week 48 from both an anatomic and visual outcome perspective, while a majority of patients were every 6-month dosing intervals. Importantly, from a clinician's perspective, a multi-indication BLA is planned by Kodiak across 5 positive Phase III clinical trials involving DR, RVO and, of course, by AMD with this DAYBREAK trial. You go forward. And you go to 2 slides, actually go to Slide 20, please. So now we're going to switch over and look at the comparison with tabirafusp. So this is a comparison using the same fixed EYLEA control on there, [ aflibercept ] 2 milligrams every 8 weeks. Again, that same 225 patients. Now we're comparing that with a separate statistical analysis plan with tabirafusp. This drug was given, again, 5-milligram doses. Dave will go into details about what these drugs look like in the dosing. And this is 4 monthly doses through week 12, followed by fixed every 8-week dosing, that's that solid green boxes there at 2028, 36 and 44 weeks. And importantly, in between, patients could also receive additional monthly doses if there was presence of disease activity using that same AI algorithm I discussed before and Dave will go into more details. Again, the objective here was to give patients what they need on a very individualized patient-specific basis on an ongoing basis. So patients had disease activity. We did not want to extend them. We wanted to be very aggressive and treat them as they deserve to be treated. But if there's no fluid, we did want them to be able to grow every 8-week dosing. And again, the goal here with this trial was to really look at patients within the treatment-naive population and see if there could be a population that could do better with IL-6 inhibition, you can go forward. Based on characteristics, we're similarly balanced here. We saw baseline visual acuity, about 2060 BCVA categorical and a low luminous deficit ranges were again balanced. CST was about 55 microns in both populations and again, 40% [indiscernible]. You can go forward. The primary endpoint in this trial comparison was also met with equivalents demonstrated between tabirafusp as well as [ aflibercept ]. You can see at the end of the 40-week period gain of 7.6 versus 6.3 mean letters. And again, noninferiority was demonstrated with high statistical significance, the p-value at the bottom there on 0036 with minor visual acuity fluctuation across the duration of that 1-year endpoint. You can go forward. So Slide 23 here demonstrates outcomes. And again, this was actually an alpha protected p-value in this comparison. So this anatomic endpoint also demonstrated noninferiority and actual equivalents between tabirafusp as well as [ aflibercept ] every week dosing. And you can see minor CST fluctuations again that classic sawtooth pattern and the gray population of a [ aflibercept-8-week ] dosing as well as some minor fluctuation with the [ aflibercept ] and then immune identical CST improvements in both populations at week 48, go forward. From a safety perspective, similar to the tarcocimab comparison here, no cases of exclusive and vasculitis, no cases of [ optimitis ], there was one [ intraocolane ] inflammatory event in a severe push farm at 0.4%. Again, there two cataracts in this comparison, none in the tabirafusp arm and 2 in the [ aflibercept ] population. You go forward. So Slide 26, my last slide here is just summarizing this tabirafusp analysis. You can see it overset the primary endpoint of wet AMD demonstrating equivalents with both visual acuity and CST outcomes in a comparison of fixed gold standard 2-milligram force arms. And looking forward, this drug is being studied in ongoing DME program, also, trying to understand who the patients are that may be able to benefit from additional IL-6 inhibition. With that, I'll pass it over to my friend and colleague David Brown. Thank you. [Technical Difficulty]
Operator
operatorLadies and gentlemen, please stand by.
David Brown
attendeeI keep getting muted. Can you hear me now?
Operator
operatorWe can hear you, sir. You may continue.
David Brown
attendeeGreat. Technology, you got to love it. All right. Next slide. The biggest problem we have, we have great drugs that solve [indiscernible]. The biggest problem is all our current drives require frequent injections, especially for a population that has fast drug clearance. Even though a treatment-naive population, it's only 5% or 10% that need monthly dosing in our clinics, it's 30% to 40% because those patients have to come every month, and we know their kids. We know their families. We'd love to have a drop that maintains visual acuity and we see these great patients a little less often. Next slide. So what Zenkuda is interesting. They have a conjugated ABC protein, which is very high molecular weight. And we know from all kinds of pharmacology studies that the larger the molecular weight, the slower the drug clearance. And so you actually have about a 20-day drug clearance of this big ABC conjugated protein. In the previous studies with Zenkuda, it was mainly -- it was only the conjugated protein. And while you saw longer dosing, you didn't see an immediate improvement in anatomy and visual acuity, like we see with our standard of care great drugs like [ aflibercept ], EYLEA. What this is, is a 2-in-1 formulation, it's 20% unconjugated protein and then 80% conjugated protein. So you're basically -- you're getting a rapid response from your unconjugated protein, while you're conjugated protein provides long-lasting and longer-acting durability. Next slide. Again, like I talked about, you have strong immediacy. What that really means is just disease control. You want the OCT curve, you want the fluid to go away. And correspondingly, you want to improve visual acuity that comes with that. The durability or the ability to last without having injections all the time. I think, comes from this conjugated platform exactly as it's been designed by Kodiak. It's a phosphorylcholine-based polymer that's conjugated to the antibody. Again, the half-life is approximately 20 days. Our current drugs, half-life 7 to 9 days or so, but that's in the average patient. There's good data with tarcocimab, 10% to 20% of the population has a half-life, about half of that. And that's probably the same with all of our drugs. Some people have a longer half-life some bowl to have a shorter half-life. Next slide. So both of the conjugated and unconjugated have a high binding affinity. So the binding affinity is with maximum inhibition is really good numbers, very comparable to [ aflibercept ]. The inhibition of a cell culture media, same thing, very similar to [ aflibercept ]. The difference is one of them is available immediately, the unconjugated. And then one is more sustained release or you can look at it as sustained release, which gives you that will acting into this curve. Next slide. I love this slide. We push for Kodiak to really look at their macular half licensed humans, this isn't done in many drugs. It's tarcocimab in the FDA filing. And so that's where this data comes from. The mean half-life tarcocimab tedromer is 7.5 days. And again, that comes from their FDA filing. It is included is 19.8 days. And I think it really is the main reason why you're seeing the more than 50% getting up to 6 months, like Charlie showed. Next slide. This was calculated in the aqueous humor fluid or the patients in the Phase Ib study. I applaud Kodiak for doing this. I beat on him and said, "Boy, this is super important", and it really shows us what you're looking for in a drug if you're trying to get extended durability it doesn't mean that you're going to get 6-month dosing in everybody. If you look at the study, 10 or so percent needed monthly dosing. That being said, that's -- the majority of patients had a very long duration between treatment intervals. Next slide. Just showing you more of that Phase Ib study. And again, this is a fully conjugated protein. Here, you have the half-life varies from 6.1 days to 39.8 days very similar to what we see in the first oat-filing data. And I'm sure it's the same with [ aflibercept ] to tarcocimab. Some patients just clear drug fast. That's a function of [ Sudafakia ], how much the vitreous is [ syneretic ], how long the eye is, et cetera. But it just shows you that we're very different. I love the design of this trial because it's not one size fits all. It's trying to figure out how do we get each patient the maximum effect within the realms of their biologic clearance. Next slide. State-of-the-art today is faricimab and EYLEA HD. Even though in the clinical trials, which were a little -- they were artificial because they required some vision loss and substantial fluid before you could get retreated, you had 77% and 79% and 70% of the faricimab trials go out to 16-week interval, a recent study by [ Bill Freeman ] shows that in real world, it's about 25% with EYLEA HD and about 21% with faricimab. Next slide. Discrepancy is two things. One, real world is different. We know from the CAT trials that a certain percentage of patients, three shots and you're gone. And so those all go away in a treatment-naive trial. However, in a real-world trial, the patients that stay in our clinic that need ongoing injections probably have a faster clearance if you test them all. And very few of these patients can switch and go into these links that you see on the TV commercials of 3 and 4 months. Next slide. I do applaud Kodiak for this retreatment criteria. It is PRN and so it's not going to be quite as good in real life as you see in this trial, but it was a very tight PRN. The AI reading read just very small amounts of fluid, which is much better than what you saw as retreatment criteria in our Phase III pivotal trials of faricimab and [ aflibercept ] 8 milligram. Next slide. So here you got treatment of retinal fluid monthly, individualized treatment. Again, it treated very small amounts of fluid. It is PRN, which I'm not happy about in the clinic, but I think it's the best you can do in a clinical trial. And I think it's very good to not allow much fluid. That's why you have maintenance individual acuity curves. A lot of the other trials out there for TKIs and gene therapy have a very, very lean. You have to have a lot of fluid before they let you retreat and that's why you see those visual acuity curves dropping off. which is, in my mind, not acceptable. Next slide. So 54% of patients got 6-month dosing interval. That's super impressive. If this is anywhere near this in clinical practice, it certainly will set a new standard of care for durability. Next slide. And in conclusion, we really are excited to be able to see what this clinic can do in the clinic, right? They're impressive. This is where the field needs to go. A lot of the clinical trial design because with it, they can go to the FDA and say, they can get monthly dosing and a certain number of patients are going to need that. The strong fluid and vision gains in the loading phase. And then the maintenance of both the OCT curve and the vision curve are super sitting. The safety is consistent with our existing anti-VEGFs. And I applaud the development team and Victor and Kodiak for helping us move the game forward. With that, I'm going to pass it off to Victor for Kodiak's next Frontier.
Victor Perlroth
executiveWell, thank you, Pablo, and thank you, Charlie and Dave for walking us through the results, the exciting results both for Zenkuda and for tabirafusp [indiscernible] and thank you, Dave, for putting a bit of the results into the historical context and into the context of your clinics. Let's turn to the Slide 41 for very quick conclusion, and then we'll move into a few Q&A. I just wanted everybody to take a moment to think after the 17 years of development, it takes a long time to try to move innovation in drug development. I think we've achieved a definitive milestone here in the field of retina. We're proud to have been part of that. And we're poised as a company for upcoming regulatory in terms of BLA filing that we are planning to do this year for Zenkuda and wet AMD in diabetic retinopathy following our GLOW1 and GLOW2 studies and in RVO, following our successful BEACON study. and we're excited to do the work to file the BLA and hopefully move from a pre-commercial stage company into a commercial stage company. We're excited from the tabirafusp [indiscernible] 10. We're very pleased that our KSI-501 molecule met the primary endpoint in DAYBREAK. And we'll continue to evaluate different subgroups of patients within the wet AMD population to identify which populations they really can benefit from that dual mechanism in the anti-inflammatory action of the 501 molecule. And of course, we already are enrolling and randomizing patients in the Alto Phase III DME study. We're continuing to accelerate site activations and randomization we're powering in that study for superiority, and we're very excited to see where we can take the 501 molecule into these inflammatory vascular diseases. And we think that can be a good partner for Zenkuda commercially. And of course, with our KSI-101 molecule where we have ongoing clinical trials in the PEAK and PINNACLE pivotal program. We remain extremely excited about what we're seeing with KSI-101. Obviously, we have very strong data in the APEX study. and have moved APEX into the PEAK and Pinnacle program. We remain on track to release top line data for KSI-101 in PEAK before Christmas. So we're looking forward to that milestone as well. And then following from that, we'll have the top line data from the second pivotal analysis for the PEAK on PINNACLE program that will be expected in the second quarter of 2027. And hopefully, we can follow that with a quick BLA for KSI-101 as well. So as you look and think about Kodiak and you think about year-end 2027, and we think about hopefully approval for Zenkuda and potentially as we look probably not the end of '27, but let's say, early '28 approval for KSI on and also, of course, continued progress and acceleration of the tabirafusp ted program in the background in DME. We think about Kodiak as a 3-product company. That's very exciting, led by the science. And I think the validation that we see on the ABC platform, also validating some of our pipeline and development work looking at future retinal diseases such as glaucoma, geographic atrophy and additional bispecific work in ocular inflammation. And we have had also a very exciting work on our ready retinal analyzers and engagement tools and that's something that we can talk about a different day. I think I'll stop here and we'll begin to take a few questions. Thank you.
Operator
operator[Operator Instructions] [Technical Difficulty] One moment for our first question, please. It comes from Anupam Rama with JPMorgan.
Anupam Rama
analystCongrats on the data. Really great to see I was wondering if I could ask two quick questions of the KOLs on the line. So the first one is with the profile of tarcocimab or Zenkuda and wet AMD, where do you see the product fitting into what is a fairly competitive treatment landscape? And which types of patients do you think would be best for therapy given the emerging profile that we're seeing here? And then the second question on for the KOLs, what percent of patients are super difficult to treat in wet AMD and maybe have some sort of inflammatory component from which they may benefit from an IL-6 mechanism, when thinking about KSI-501 [indiscernible]. [Technical Difficulty]
Charles C. Wykoff
attendeeYes. Charles Wykoff here. I don't know if you can hear me, but happy to take that question first. I appreciate the perspective that you're taking, which I completely agree with, that we need to start thinking about wet AMD patients as more of a heterogeneous disease population than we have historically, right, historically, we have a one size fits all, and I think we're getting to a place in retina where we can be more nuanced. So to take the second part of the question first, tabirafusp, I do think that there are some patients with an inflammatory component. I think we still have to dive into the data to kind of understand who those patients might be in this particular clinical trial. On average, we're seeing that we've met equivalents here non-inferiority with [ aflibercept ], but are there subpopulations that may be doing even better with IL-6 inhibition, I think those analyses still need to come. I do think there will be those patients, and we'll see. On the other side, I think that tarcocimab could be useful for a broad range of patients with wet AMD, right? The value of this clinical trial program is that we're showing that we can dry equivalent to fixed EYLEA monthly dosing during the loading phase and then a very large number of patients can go longer in between injections than what we used to do with our current biologics. So that perspective, I think this could be broadly useful for a large proportion of patients with wet AMD. Both the patients with high need dosing frequencies and also those patients that are already on extended intervals because we can hopefully go longer based on the half-life data that beautifully impact, right? This bipolar conjugate looks like it's meaningfully extending intraocular half-life for this anti-VEGF component in these patients, which I think would be quite clinically meaningful for a large number of patients.
Unknown Executive
executiveYes, I agree with Charlie, there's lots of patients out there that if you -- to answer the first question, it's in a busy tertiary care clinic like Charlie and I have, it's probably 30% of the waiting room needs monthly treatment with faricimab or EYLEA HD. So that population is really out there. Will this molecule move that population? I don't know. I'll have to see. In terms of the IL-6 question, I think it's much more likely that with diabetes, we're going to see an IL-6 responder group. AMD, there's less evidence of IL-6 or inflammation. But in the DME population, certainly, that's why steroids have persisted all these years is there's a certain part of the population that really has inflammatory components.
Operator
operatorOur next question comes from Maury Raycroft with Jefferies.
Unknown Analyst
analystThis is Amina for Maury. A couple of questions. First, for Dr. Brown and Dr. Wykoff, do you -- how do the treatment criteria compare with your real-world practice? And would you expect durability to be -- to change outside the trial. And then I have a follow-up.
David Brown
attendeeYes. So in the real world, most of us don't allow any fluid. So in the real world, we figure out a dosing interval and we stay at that interval. The difference in this trial, and you had to do it in a clinical trial is here, you're actually waiting for fluid to occur even though it's a very tiny amount of fluid. So in the clinic, you're going to use this a little less than what you see in this trial. How much less? You really won't be able to tell until you get it out there. But unlike previous trials that wanted 50 microns of fluid or 100 microns of fluid and commissioning loss -- this is much more real world. This is very small amounts of fluid. Any appreciable amount essentially with the AI read. And so this is as close as you're going to get to the way we treat in the clinic. And not -- given the trough constraints that you can't do treat and extend in a clinical trial and get a drug approved.
Unknown Executive
executiveYes, I agree with those comments. I think the biggest differentiator of this clinical trial program, DAYBREAK is that retreatment algorithm that Dave described and we showed the images for, right? Most other clinical trial programs that are showing extended dosing intervals between treatments or gene therapy or TKIs are using a combination of increased CST and vision loss to drive retreatment or to determine your treatment interval. No one in clinical practice does that. We don't wait for visual acuity loss and change in CST. CST is a number that most rental specialists are not routinely using to drive retreatment and wet AMD. We use the presence or absence of fluid to determine what that interval is going to be. And this is really the first pivotal trial to use an AI algorithm and I applaud them for doing that. This is sort of a first of its kind, and I really think this is where future trials need to go to try to find these recurrences and disease activity before there's vision loss and before there's significant architectural distortion of that central foveal zone.
Unknown Analyst
analystSounds good. And for tabirafusp, what do you think explains the numerically lower leather gain with this drug versus [ aflibercept ]. Is there any reason to believe it's mechanism related? And does it change your view on the ALTA trial.
J. Velazquez-Martin
executiveYes. This is Pablo Velazquez-Martin. Thank you for the question. I think this is a positive study and the BCVA and drying met til significance. I think that's important to remind ourselves, I think that the message -- the comment from Dr. Wykoff and Dr. Brown, about finding which patients benefited the most from the IL-6 inhibition in this treatment-naive patient population. It's our next task and to understand the data better, of course. As Dr. Brown was mentioning, wet AMD and particularly treatment-naive overall broad population might not -- is not probably the best place to shut life for an IL-6 inhibition or inflammatory inhibition to shine. And that's what basically validates our development path, which we're moving to and that will be -- that we might take on the. So Charlie, do you want to add anything else?
Charles C. Wykoff
attendeeYes. It's a good question. And I don't know the answer to that. I can tell you statistically not only is not inferior have been demonstrated, but my understanding is that equivalence here has also been demonstrated. So I do think from a cystic perspective, these are overlapping. At least the way the trial typical analysis plan was defined. I think that's critically important. Beyond that, these subpopulations will be really interesting, right? I think we're learning so much about new biologies in retina, and it's fantastic for patients, right? We have [ Ang2 ] biology that we've learned about now for a while. We're going to get a lot more data on direct Tie2 activation, wins activation and in this case, IL-6 inhibition. So there's a lot more that we're learning about these different disease states. And I believe strongly that we are going to migrate more to an oncology sort of approach here, where we're being more specific about patient subpopulations that could benefit from additional modulation of different biologic pathways beyond VEGF inhibition.
Operator
operatorOne moment for our next question. It comes from the line of Umer Raffat with Evercore ISI.
Umer Raffat
analystFirst of all, congrats to the whole Kodiak team for persevering through this over the last 5 years. I have three questions, if I may. First, perhaps for Charlie. Charlie, do you think this is standard of care based on all the data we're looking at, number one. Second, maybe for David. David, can you speak to how the AI could be implemented in practice or that little bit of fluid method that retina practices do use will effectively mimic that? I'm just trying to think about how to sort of implement and find that first 1/3 of the patients that do need the additional supplementation. And the last one, Victor, for you and maybe for your staff team, is something I was looking at and which may be a labeling thing, on the OCT graph that Charlie leaned into, it shows 133-micron drop for [ aflibercept ] in the table, the lease square it means when tarcocimab analysis is shown, but it shows 138.8 when that aflibercept arm is shown again for the 501. And similarly, I felt like in the tarcocimab OCT disclosure, maybe the gray versus blue flip the way the OCT has shown, it looks higher, even though the number is deeper. So I just wanted to clarify...
Charles C. Wykoff
attendeeI'll take the first of those. So the standard of care. It's interesting. Whenever you do a prospective clinical trial, right, there's a lot of bias there. Every single trial is different than routine clinical practice patients for a lot of reasons. And I think the biggest disconnect that we've had as retina specialists as practicing doctors over the last few years has been this disconnect between what we do in clinical practice, which is treat to dry and then go as long as we can in between those doses based on anatomic recurrence of disease and patient symptomatic recurrence of symptoms. And the disconnect has been in clinical trials because clinical trials have sort of instituted these thresholds, which are more than that, where they require visual acuity lost and anatomic worsening beyond what we would allow in clinical practice before retreatment or reside or before determining what that longest acceptable interval is. And that's been a disconnect because we look at these free trials that require, for example, 15-letter loss, and that's just not standard of care in any of these diseases and especially with AMD. Even [ 10-letter ] loss is a lot of visual acuity to require a patient to lose before you retreat them the 5 or greater letter loss is, I think, a little more acceptable for some of those clinical trials. But again, that's not what we do in routine clinical practice. So I think this is the closest pivotal trial that we've ever seen in the modern era for wet AMD management. getting at how doctors actually think about managing these patients in the real world. I think this will be more closely aligned with drug treatment intervals that are achievable in the real world for a broad treatment-naive population. Now if this is approved and we used previously treated patients in the real world. That's going to be a different outcome than again, a broad population like this that's treatment-naive because those patients a priority are going to need more frequent dosing.
David Brown
attendeeUmer, it's Dave Brown. Good to talk to you again. In terms of AI fascinating, AI is rapidly getting into our imaging I think AI will be useful in the clinics to help doctors find small amount of fluid that if you're looking at scan volume scan, it takes a while to grow through all that. And kind of like a radiology read where it shows you sort of where to look, I think that's going to help. In the clinics, though, the real-world story is that with step therapies, most insurance companies make you either step through [ Avastin ] and/or probably in [ aflibercept ] biosimilar at some point, you're going to have a much tougher population that moves on to these advanced drugs. And so you've already weeded out the easy ones with that step therapy. I think you're not going to see these kind of results because unless an insurance company figures out that, boy, it's cheaper to give 2 or 3 doses of this drug then to make the doctors go through [ Avastin ] and [ aflibercept ] biosims, I think we're going to -- the real world is we're going to be in the United States stuff with that paradigm.
Victor Perlroth
executiveSP1 Thank you, also here for the third question. They're not -- like the numbers are not flipped. So in the OCT graph just looking at tarcocimab for example on Slide 15 the it's observed CST. So if you look at the baseline of the aflibercept arm is slightly higher, and that's why it's it doesn't fully represent the change at the end. So the numbers are correct, it's minus 138 and minus 132 obtains are closing up, respectively. At week 48. Regarding your second comment, the difference between those numbers and the numbers in the table below is the numbers in the table below used the MMRM model. So that's clearly the square means numbers, whereas the number on the top on the right on the graph, is just the mean change of served. So that's the difference. The 1 on the bottom of the table is a statistical number, which is the 1 that is used for a statistical testing.
Umer Raffat
analystOkay. But because the EYLEA looks different between the two tables when the nausea was shown.
Unknown Executive
executiveYes. And as we prepared at the beginning of the study, so the study -- sorry, the two studies are independent, the analysis and the models and everything are independent. I do think that they're identical. We can double check for that, but I'm pretty sure that they're the same.
Operator
operatorOur next question that comes from Michael Yee with UBS. .
Michael Yee
analystCongrats again, Victor and the team. Maybe a question on 501. I think there's not really any debate on the AMD stuff. I think you guys wrote in the slide, the new benchmark. So just thinking about the read-through then for DME and the Auto study, maybe the doctor Charlie and David could comment. Do they seek or would they be pleased to see better BCVA, higher BCVA, superior BCVA or would greater dosing be attractive? Maybe just comment about where you could see significant opportunity here in DME given AMD is not such an inflammatory driven disease. And the second question is beyond DME. How does the data today change any of your thinking about your confidence on [ Mezi ], which of course, is reading out in a couple of months.
Unknown Executive
executiveYes, I'm happy to jump in there first. Thanks for the question. I agree with your premise and other comments here by many that the DME historically is looked at as more of an inflammatory disease state. Certainly agree with that. I do think there is broad heterogeneity in both wet AMD and DME that's been underappreciated historically, mostly because we didn't have the tools to address these different subpopulations in unique ways. So I think we need to get more sophisticated as a specialty and understanding who these subpopulations of patients are credit to patients to groups that have been looking at things like intrarenal [ hyperrefle ] and the amount of drill and retinal monperfusion, right? There's a lot of imaging biomarkers that can be leveraged in the DME and DR population to try to identify who those subpopulations of patients are. I think we have a lot more to learn there. Specifically to your question, sure, we to see improved mean visual acuity outcomes across the entire population of patients and better anatomic drying I'm not sure if that will be achieved. I certainly hope it will be. But what I expect will be achieved will be very similar outcomes to [ aflibercept ] 2 milligrams with the potential for some subpopulation of patients to be doing meaningfully better from a clinical perspective.
J. Velazquez-Martin
executiveMike this is Pablo again. So just to remind the audience, so tabirafusp alfa tedromer and KSI-101 share the same protein, that's where the of the question comes from how do we think about [ Mezi ]. I think that it's two different compounds and two different patient populations and two different everything. That's why we're doing them separately, their full development plan. we're extremely excited about what the results will be for [ Mezi ] and for 101, as you mentioned, it's coming up very soon. and about the patient population and the response and the valuation. Charlie, you want to comment, you're an investigator in the PEAK and PINNACLE trials.
Charles C. Wykoff
attendeeYes. PEAK and PINNACLE [indiscernible] population where clearly, that's an inflammatory driven group of diagnosis. I really like the approach the Kodiak has taken. I hope others take it also where they're sort of broadening that potential funnel for patients with inflammatory associated macular edema ear of the core uveitis associated diagnosis that are associated with inflammation. But there are many other categories of disease are being studied in there as well. And it will be fascinating to look at those different subpopulations of patients based on their entering diagnosis to get a feeling for how that IL-6 inhibition can benefit them clinically.
Unknown Executive
executiveWell, thanks, everybody, for joining us for the DAYBREAK primary top line data, WebEx and results discussion. I think it is a very good discussion. We were privileged to have Dr. Wykoff and Brown participate. Thanks also to Pablo. I think we've achieved something very important within the wet AMD field with Zenkuda. I think in summary on these different retreatment criteria, what we tried to accomplish in DAYBREAK was something as close as possible to what the retina doctors do in their clinic. So they might print out those -- the scan of the OCT image. If there is any fluid present the physician would treat that patient. The application of our tool was only to provide a consistency across the study and to accomplish the same thing. We set the thresholds for treating based on intraretinal or subretinal fluid, if fluid was present at the limit of detection reproducibly of the machine, then it would trigger retreatment for the patient in DAYBREAK. And having said that, we were able to bring a majority of the patients coming out of the loading phase and at the endpoint through the end point a majority of them on 6-month dosing. And as Dave says, and Charlie says the population in the real world may be a little bit different. But the point is, as we showed -- Dave showed the curves of the aqueous taps and the ocular half-lives that every patient has a different ocular half-life. And now with the combination of the free protein and the conjugated protein, the 2-in-1 our concept is to provide the best possible immediacy and the best possible durability for each patient. And to have the retina physicians to do their job and to have the best drug to be able to provide the best journey for that patient. And we had a clinical trial that best approximated what they do every day. in their clinic. And that's very exciting to see that together with the safety that we've also witnessed in this study so far. With the 501, very excited to accelerate it in DME. We're glad to have a positive study in wet AMD, very exciting, I think, because of the strength of the Zenkuda data in Daybreak then you're asking questions about the tabirafusp or the 501, I think we're very excited about these results in Daybreak and very excited about the potential for our superiority study designed for 501. And in DME. And KSI-101 in messy is a very different animal. Very excited to be in macular edema secondary to inflammation, which represents a very broad population with a very high unmet need and excited in the development of Kodiak in my own career to be able to bring KSI-101 as a career medicine into the commercial setting for patients. Thanks for joining us. We look forward to the next steps of the journey together. With that, we'll sign off.
Operator
operatorAnd ladies and gentlemen, thank you for participating in today's conference, and you may now disconnect.
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