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Welcome to the Lexicon Pharmaceuticals Third Quarter 2025 Financial Results Conference Call. [Operator Instructions] As a reminder, this call is being recorded today, November 6, 2025. I will now turn the call over to Lisa DeFrancesco, Senior Vice President for Investor Relations and Corporate Communications for Lexicon. Please go ahead, Lisa.

Thank you, Mila. Good morning, and welcome to our third quarter 2025 conference call. Joining me today are Dr. Mike Exton, Lexicon's Chief Executive Officer and Director; Dr. Craig Granowitz, Senior Vice President and Chief Medical Officer; and Scott Coiante, Senior Vice President and Chief Financial Officer. This morning, Lexicon issued a press release announcing our financial results for the third quarter of 2025, which is available on our website at www.lexpharma.com and through our SEC filings. A webcast of this call, along with the slide presentation is also available on our website. During the call, we will also review the information provided in the press release, provide a corporate update and then use the remainder of our time to answer your questions. Before we begin, let me remind you that we will be making forward-looking statements, including statements related to the safety, efficacy, clinical development, regulatory status and therapeutic and commercial potential of pilavapadin, LX9851, sotagliflozin and our other drug programs as well as our business generally. These statements may include characterizations and projections relating to the clinical development, regulatory status and market opportunity for our drug programs and the commercial performance of INPEFA for heart failure. This call may also contain forward-looking statements relating to our growth and future operating results, discovery and development of our drug candidates, strategic alliances and intellectual property as well as other matters that are not historical facts or information. Various risks may cause our actual results to differ materially from those expressed or implied in such forward-looking statements, and we refer you to our most recent annual report on Form 10-K and our other SEC filings for detailed information describing such risks. I would now like to turn the call over to Mike Exton. Mike?

Okay. Great. Thank you, Lisa, and good day, everyone. Great to have you all with us this morning. We're really excited to give you updates on this quarter and all the great work that's going on here at Lexicon. Now as we approach the final weeks of the year, I wanted to really begin by regrounding you on the ambitious set of strategic imperatives that we set out at the start of this year, which were designed to drive long-term value for the company. Now these goals were, firstly, to progress pilavapadin to be ready for Phase III registrational trials. Secondly, submit an IND for LX9851, our novel non-incretin candidate in obesity. Thirdly, to recruit patients and accelerate recruitment into our ongoing Phase III clinical trial in hypertrophic cardiomyopathy, or HCM, named SONATA; continue the ongoing discussions with FDA on

Thank you, Mike. As Mike mentioned, we have made significant progress across our pipeline this year. It has been a busy and productive 3 quarters. I'd like to begin with pilavapadin, our novel non-opioid AAK1 inhibitor. Data and analyses from 3 separate Phase II trials in neuropathic pain provide evidence of consistent and clinically meaningful pain reduction and validate the response and tolerability profiles of pilavapadin. While our lead indication in DPNP represents a mature clinical program, several secondary indications are also Phase II-ready, providing significant expansion opportunities. In addition, the AAK pathway is central to a number of cellular processes such as synaptic signaling between neurons. With this in mind, we've also conducted IND-enabling work in multiple neuroscience indications, underscoring pilavapadin as a potential pipeline in a pill. We've accumulated data from more than 600 patients treated with pilavapadin and have demonstrated a well-understood and acceptable safety and tolerability profile. Finally, patent protection on the pilavapadin molecule extends through 2040 when including an anticipated 5-year extension. This provides a long period of exclusivity to maximize the value of any investment related to this asset. For the past several weeks, we have presented data on pilavapadin in DPNP at a number of important medical meetings. For context, earlier this year, we shared top line data from PROGRESS, our Phase IIb study of pilavapadin in patients with DPNP. The study met its objective of identifying 10 milligrams as the appropriate dose to advance into Phase III development. Since that time, we have completed additional post-hoc analyses and an additional renal impairment study to further clarify the product profile. We set out to achieve a few objectives with these analyses. One, to investigate an exposure response relationship; second, to evaluate adherence across treatment arms; third, to validate the robustness of the 10-milligram dose; and finally, to confirm the safety and tolerability profile by evaluating pilavapadin’s pharmacokinetic profile in a broader patient population. The post-hoc PROGRESS and RELIEF analysis that we presented in September and October successfully addressed these key objectives, leading us to a few important conclusions. There is a linear relationship between increased plasma levels of pilavapadin and reduction in pain score. The post-hoc analysis confirmed the biological activity of this drug. Second, pilavapadin’s effects on pain is clinically meaningful. Notably, the 10-milligram dose achieved a 2-point drop in ADPS from baseline by week 12. Third, the 10-milligram dose demonstrates an acceptable tolerability profile with nearly the same percentage of patients completing the study on treatment arm as the placebo arm. And lastly, we conducted additional human studies that have concluded there are no cardiac signals such as QTc prolongation. And in patients with mild to moderate renal impairment, no pilavapadin dose adjustments will be required. These are important findings that support a broader potential patient population to be included in the Phase III studies. So what's next for pilavapadin? With the results from our Phase II program, our request for an end of Phase II meeting with the FDA has been granted. We are scheduled to meet with the agency by the end of this year and receive written feedback from the agency by early next year. In parallel, we are progressing our planning for a Phase III program in DPNP. We have incorporated the input from our Scientific Advisory Board who were supportive of our Phase III development approach as well as elements from the recent guidance from the FDA on non-opioid clinical development. In conjunction with this activity, we continue to have ongoing engagement with potential partners. Now, to shift our attention to sotagliflozin, where we believe our opportunity continues to strengthen with time. INPEFA has remained on the market in the U.S., and we see steady sales from our base of loyal prescribers. We also continue to build distinguishing evidence from investigator-initiated studies supporting sotagliflozin's mechanism in hypertrophic cardiomyopathy, heart failure and in major adverse cardiac events, or MACE. Beyond heart failure, where sotagliflozin has been approved in the U.S. based on clinical data from 2 large outcome studies, enrollment in our Phase III program of sotagliflozin in HCM continues to accelerate. And lastly, as Mike outlined earlier, we are maintaining close communication with the FDA about the potential resubmission of

Thank you, Craig, and good morning, everyone. For the third quarter of 2025, we reported total revenue of $14.2 million compared to total revenue of $1.8 million for the third quarter of 2024. Q3 2025 revenue consisted primarily of $13.2 million of licensing revenue recognized from our agreement with Novo Nordisk. Licensing revenue under this agreement is being recognized as the IND-enabling work is completed. Through September 30, 2025, a total of $40.7 million has been recognized as licensing revenue from this agreement with the remaining $4.3 million expected to be recognized in Q4. Total revenue for the quarter also included net product revenue of $1 million from sales of INPEFA. Research and development expenses for the third quarter of 2025 decreased to $18.8 million from $25.8 million in Q3 2024, primarily reflecting lower external research expenses associated with the completion of our PROGRESS clinical trial, partially offset by increased investment in our SONATA Phase III clinical trial in HCM. Selling, general and administrative expenses for the third quarter of 2025 decreased to $7.6 million compared to $39.6 million in 2024. The continued decrease reflects lower costs as a result of our strategic repositioning in late 2024 and significantly reduced marketing efforts in 2025 for INPEFA as well as general diligence and focus on operating our business efficiently. Net loss for the third quarter of 2025 was $12.8 million or $0.04 per share as compared to a net loss of $64.8 million or $0.18 per share in the corresponding period in 2024. We ended the third quarter with $145 million in cash, short-term investments and restricted cash as compared to $238 million as of December 31, 2024. I would also like to note a few other items from the quarter. On the expense side, we continue to reduce costs and streamline our operations. Quarter-over-quarter operating expenses decreased by $39.1 million, primarily due to the strategic repositioning as an R&D-focused company. We are maintaining our full year 2025 guidance for operating expenses. Total operating expenses are expected to remain between $105 million and $115 million, with R&D expenses projected to be between $70 million and $75 million. SG&A expenses are expected to range between $35 million and $40 million. Our R&D expense assumptions do not include costs associated with Phase III pivotal studies of pilavapadin as our goal would be to take this asset forward with a development partner. Overall, we are in a strong position with the resources needed to advance our ongoing clinical programs while maintaining a disciplined approach to capital allocation and a focus on creating value for our shareholders. I will now turn it back to Mike for his closing remarks.

Yes. Thanks, Scott. Look, you can see that we have achieved quite a lot already in 2025, and I'm excited about where we continue our strong execution to wrap up this year. As I shared earlier regarding pilavapadin, we're planning for an end of Phase II meeting by year's end. Our preclinical work continues as we explore the broad potential value of this asset and evaluate expansion into additional indications. Additionally, a partnership for pilavapadin will allow us to become therapeutically focused on our core cardiometabolic programs and expertise. For SOTA in HCM, we're really excited to share results from complementary studies of SOTA starting this upcoming weekend with AHA, which could provide valuable additional insights on this therapeutic candidate. In parallel, our SONATA study sites in the U.S., EU, Israel and LatAm are enrolling according to plan with all Phase III sites up and running. For INPEFA, our partner, Viatris, continues to make progress against plans for regulatory approval. Sotagliflozin was recently approved in UAE and now has been submitted for approval in Saudi Arabia, Canada, Australia and New

[Operator Instructions] Our first question comes from the line of Andrew Tsai from Jefferies.

Congrats on the progress. This is [ John ] on for Andrew. So for

Yes. Thank you for the question, John. It's Craig Granowitz. As Mike has mentioned and we've discussed previously, we're really leveraging ongoing trials, particularly the STENO trial in Denmark to use the exposure data in a very large number of patients to address the single concern that FDA raised at their end of review meeting, which is a prospective study to document rates of diabetic ketoacidosis. And as you might recall and as the CRL letter that was made public by the FDA a few months ago mentioned, "FDA accepts that there is efficacy with this drug, has meaningful reductions in A1c, meaningful reductions in severe hypo effects and obviously, the proven outcome that we've already seen in the labeling we have in patients with type 1 diabetes and heart failure.” So we are using the STENO trial with adequate levels of exposure, which is what we're really discussing with the FDA to prepare a submission really focused on that one single issue. To answer your second question, while we don't have final written confirmation of this with the FDA, our expectation is that this would be as a resubmission, a 6-month review clock.

I think, John, just to provide a little more color from my side, I think what's really pleasing here is that the FDA has endorsed and accepted that the STENO protocol and patients that they're capturing are acceptable and the way they're capturing DKA is acceptable. So as we move forward, it really is around appropriate exposure levels to be able to give them confidence that the positive data that we are seeing gives them confidence for resubmission.

Great. And then maybe one more, if I can. For those third-party IST studies for SOTA in HCM and HFpEF, how do you expect the non-HCM data to perhaps give you greater conviction in the Phase III SONATA study success?

Yes, it's a great question. Clearly, there's an overlap between HFpEF and HCM. From a clinical standpoint, they are, in essence, indistinguishable. You see a very similar profile. You have normal ejection fraction, but you have patients that have symptomatic dysfunction, particularly diastolic dysfunction. And I think as you've seen with the CMIs, they're actually trying to go from HCM into HFpEF. I think they're having some challenges with that because a lot of patients are then developing ejection fractions that are dropping below 50%. We believe that by demonstrating data, and you'll see some of that as early as this weekend in the [ SOTA-P-CARDIA ], which is an oral late breaker at AHA as well as our continued mechanistic data that will be presented on tomorrow, actually Friday at the HCM Society meeting, we are distinguishing the effects of sotagliflozin in both the preclinical models, the animal models on energetics and cardiac remodeling that will fit very nicely with some of the clinical results that you might be seeing in HFpEF patients that will be presented at the SOTA-P-CARDIA data on Saturday at HCM. So it continues to build a wall of evidence that is similar between HFpEF and HCM regarding cardiac energetics, cardiac remodeling, cardiac fibrosis and ultimately improved functionality and symptomatology in patients either with HFpEF or with HCM.

And John, again, allow me to sort of pile on there, I guess, more from a sort of commercial bent of how we see this. We have this program in HCM for both obstructive and non-obstructive thinking that a medicine that is oral once daily, easy to use and a well-known and understandable side effect profile, particularly given the data coming out of MAPLE really gives us a great opportunity potentially to work alongside CMIs, but in a first-line position in HCM. And that first-line position, particularly as you're sort of expanding outside of the HCM centers into retail cardiologists and large-scale cardiology practices allows HFpEF and HCM, the patients present very similarly in those offices. And so having SOTA as an option for both HFpEF and a differentiated option for HFpEF and HCM gives the cardiologists peace of mind that they can use this medicine very successfully in either condition and particularly in non-obstructive where diagnosing the difference between the 2 is a little more challenging. So both from a utilization as well as scientifically, we continue to generate additional data that will help support the use of this in a broad range of cardiology patients in across the cardiology community in the U.S.

Our next question comes from the line of Yigal Nochomovitz from Citigroup.

Congrats on the progress. This is [ Joohwan Kim ] on for Yigal. Maybe just 2 quick ones from us. Regarding the partnership opportunity in DPNP, can you orient us on how far along you are in identifying a partner and remind us whether or not you are awaiting to complete the discussions for the end of Phase II meeting with FDA before completing any partnership agreements?

Yes, that's a great question. So over the last, I'd say, 4 to 6 weeks, we've reengaged with a range of partners who we had originally discussed the top line data with. Obviously, the data that we presented over the last month, including the totality of the Phase II program, we've had the opportunity to talk with all of these partners. The end of Phase II meeting is a very important milestone in those discussions. I think it's fair to say in a space where there's been nothing developed for 2 decades in a space where new draft guidance has come out, it's important to have that confirmation as a part of those overall discussions. So we're really looking forward now that, that end of Phase II meeting is scheduled for this year to continue to progress around that. We feel very confident actually with the dossier that we've submitted and are really looking forward to having the FDA's endorsement on what we think is a robust Phase III program that reflects their draft guidance, and that will certainly be a part of the partnering discussions that we're having.

Got it. And just one more, if I may. Understanding that you're seeking a broad HCM label. But in your discussions with the FDA, have they suggested the possibility that you would also be able to get approval for specifically non-obstructive or obstructive HCM as data from SONAT is stronger in one particular subgroup?

Yes. Very good question. We're approaching it similar to how we approached heart failure, and we had a broad label for heart failure regardless of whether it was HFrEF or HFpEF. And we're really taking that same approach with the FDA and the commitment we have on them when we met with them to discuss the protocol before initiating the trial was that this -- if the study is positive as conducted, would give us a label that would include both obstructive and non-obstructive patients. So we are seeking that. We are looking to have 2 groups of 250 patients each within the study. There is a stratification by obstructive versus non-obstructive, but the overall endpoint is anchored to the overall population.

Our next question comes from the line of Joseph Pantginis from H.C. Wainwright.

So a few as well, if you don't mind. So first, I think it would be helpful if you remind us when SONATA moves forward and if it were to be positive. Can you discuss the positioning, especially with the continued growing excitement in the HCM space and the role of CMIs and the hopefully upcoming approval of aficamten. So where would SOTA be positioned with regard to these other assets?

Yes. It's a great question, Joe. So I think it's firstly important to note that patients on a CMI are actually eligible to enroll in SONATA. And we've purposefully taken the approach again of using a very pragmatic trial that SOTA can be used in conjunction with underlying meds that are used in hypertrophic cardiomyopathy. Now, where I would see the positioning is typical across a lot of chronic medications in as much as those medicines that are somewhat more laborious, somewhat more costly often depending on sort of where it ranges and often positioned as sort of later lines in therapy. And we would see sotagliflozin as we discussed a little bit earlier, as being a broad potential not only being used in the somewhat restrictive academic centers that have HCM study sites and clinical sites, but really across the broad scope of cardiology because it's a known mechanism. It's easy to use. And if we get positive results out of SONATA in both obstructive and non-obstructive, it allows this broad utilization and particularly given the results of the MAPLE trial, which showed that, in fact, beta blockers don't necessarily add any value, and there's a question as to whether, in fact, they may be causing some harm in HCM. I think that offers for us a really good opportunity to become a first-line agent in HCM, both obstructive and non-obstructive.

Mike, if you don't mind, I just want to add one other point. I think it's becoming more clear, Joe, and I think you've seen and heard some of these presentations even very, very recently that all of the CMIs that are currently under regulatory review will have REMS of some sort. And that certainly does put significant paperwork and process in place for patients being initiated. I think that inherently is going to limit the sites that are willing to do that because you need to have a critical mass in order to create the paper workflow. And there'll be many places that will have HCM patients in relatively low numbers that will not be willing to take on that burden. So I do think the fact that the CMIs will have REMS and there might be differentiated REMS between them, but they will be what I would call significant limitations that are always a part of a REMS, and we don't have any inclination that, that would be the case with SOTA, which is a well-known agent that has already an indication for heart failure.

That's really helpful. And then I'll just ask my last 2 questions together. So first, with regard to the upcoming end of Phase II study, you've already provided some nice details around that. I just want to make sure I understood, you already have a lot of great feedback. Is there anything you would describe as questions that are left to address or finalize, number one? And then if

Great. I might throw the first one to Craig, and I'll take the second one.

Yes. Joe, great question on the end of Phase II. I think when it comes to the endpoint, the duration of the study, the patient population, I think we feel very comfortable with that, and I think that's been validated as well for other companies that are in Phase III in neuropathic pain and diabetic neuropathic pain that it will be 2 trials of roughly 300 to 350 patients each with a 12-week visual analog pain score with an average daily pain score outcome. I think with any centrally acting agent, some of the areas of discussion are going to be regarding potential for central effects such as drowsiness. I think there's always going to be a question with any agent in this regard, even though there is no reason to believe and we don't believe that there is any issue of human addiction potential type activities. But we don't believe that there are any meaningful or significant next-day drowsiness or other central effects of this agent. And there is no indication in that large Phase II program that we've run, including a blinded withdrawal that there is any issue around addiction potential, but those certainly are areas that could be points of discussion with the FDA.

Right. And I very much appreciate, Joe, the question on the commercialization of

And especially on the last commentary, it sounds like you have the ability to leverage a lot of optionality.

Our next question comes from the line of Yasmeen Rahimi from Piper Sandler.

This is [ Dominic ] on for Yasmeen Rahimi. Congrats on a great quarter. So we were looking at HCM. We know it's going to be an exciting year this year and especially considering that there's going to be a few presentations on the SGLT1 and 2 inhibitor class in HCM in the preclinical models. Could you help us understand how much proof-of-concept data we could gain from these presentations in HCM?

Yes. Thank you, Dominic. We look at any one of these presentations and particularly a preclinical model as part of a broader tableau around the mechanism of action and particularly the functionality of both the SGLT1 and the SGLT2 effects of SOTA, whether we're looking at the effects on stroke and MI, whether we're looking at the effects in HFpEF over looking at the effects in HCM. And as you know, we've generated data on all of those over the past year and have published on that extensively. The data from the Boston group that will be presented tomorrow at the HCM meeting, I think, continues that narrative. And in a particular murine model, this group has a lot of experience and a long track record. And the effects that they've seen with SOTA in that model, and I don't want to presage their presentation, but I think are quite dramatic. And I'll just sort of provide the overview is that it's affecting the energetics and there are some mechanistic data around the energetics effects of SOTA in that model. And by affecting and improving cardiac energetics, you're improving fibrosis and other cardiac remodeling, but most importantly, ultimately, diastolic function. And as you know, the major physiologic issue in HCM is diastolic stiffness. So there's really 2 main issues physiologically in human hypertrophic cardiomyopathy. In obstructive, there is a physical barrier to outflow tract obstruction, and that really is what distinguishes between obstructive and non-obstructive HCM. But fundamentally, the issue that is common, whether it's obstructive or non-obstructive is cardiac hyperdynamic function that the actin and myosin are overly active, and there's also an issue around altered energetics. And we believe that sotagliflozin is acting on both of those fundamental physiologic characteristics. And that's why we believe and we had strong support from the medical community and the FDA that we could study both obstructive and non-obstructive in the same trial because the underlying pathophysiology is the same regardless of whether they are obstructive or non-obstructive, which is really defined anatomically as opposed to physiologically.

Great. That was definitely helpful. And then we just had one more. Once pilavapadin's end of Phase II meeting is complete, and I know you touched on this a little bit earlier, but how soon do you envision a partnership materializing? And then what are your thoughts on the type of deal that you could explore you would be interested in?

Yes. I think we will continue those engagements after the end of Phase II meeting and certainly into the start of 2026. I think the type of partnership that we're -- and the type of partners that we're engaging with are really pretty diverse. And I think that gives us optionality as to how we take our involvement with pilavapadin forward. And so we'll continue to engage with them. We'll wait for the minutes, obviously, to have that formalized, which will be in early 2026, and then we'll take it from there.

I am showing no more further questions. We will now turn it over to Mike Exton, Chief Executive Officer of Lexicon for closing remarks.

Well, thanks very much, everyone. Thanks for the great questions. I really enjoyed those and look forward to discussing in more detail with you soon. I think -- and I hope that what you've seen is that this year, Lexicon has really put our nose to the grindstone and focused on reshaping the company and advancing our pipeline forward. We have a number of great things happening in the next couple of months really as we close out the end of the year and into 2026. So look forward to sharing more information on all of those at future updates. So thanks very much, and have a great day.