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Operator
Thank you for standing by. My name is Aaron, and I will be your conference operator for today. At this time, I would like to welcome everyone to the Ironwood Pharmaceuticals Q3 2023 Investor Update conference call. All lines have been placed on mute to prevent any background noise. After the speaker's remarks, there will be a question and answer session, and if you would like to ask a question during that time, simply press star followed by the number one your telephone keypad if you'd like to withdraw your question simply press star followed by the number one again i would now like to turn our call over to matt roach director of investor relations matt please go ahead thank you aaron good morning and thanks for joining us for our third quarter 2023 investor update our press release issued this morning can be found on our website today's call and accompanying slides include forward-looking statements
Aaron
Such statements involve risks and uncertainties that may cause actual results to differ materially. A discussion of these statements and risk factors is available on the current Safe Harbor Statement slide, as well as under the heading Risk Factors in our annual report on Form 10-K, the year ended December 31, 2022, and in our quarterly report on Form 10-Q, where the second quarter ended June 30, 2023, and in our subsequent SEC filings. All forward-looking statements speak as the date of this presentation, and we undertake no obligation to update such statements. Also included are non-GAAP financial measures, which should be considered only as a supplement to and not a substitute for or superior to GAAP measures. To the extent applicable, please refer to the tables at the end of our press release for reconciliations of these measures to the most directly comparable GAAP measures. During today's call, Tom McCourt, our Chief Executive Officer, will begin with a brief overview. Mike Schetzlein, our chief medical officer, will discuss our pipeline, and Shrevan Imani, our chief financial officer, provide a commercial update and review our financial results and guidance. Today's webcast includes slides, so for those of you dialing in, please go to the events section of our website to access the accompanying slides separately. With that, I'll turn the call over to Tom.
Tom McCourt
Thanks, Matt, and good morning, everyone, and thanks for joining us today. As we approach the end of the year and look back on the progress we've made across our strategic priorities, we are pleased with the strides taken towards realizing our vision to become the leading GI healthcare company in the industry. As you've come to expect from us over the years, we continue to maximize Linzess by driving robust demand growth and expanding its clinical utility while generating strong cash flows. We are on track to deliver on our Linzess net sales guidance of growth between 6% and 8% this year and remain encouraged about the future growth potential of Linzess based on its continued strong performance in the third quarter. But importantly this year, we have also strengthened and progressed our GI portfolio in areas of high unmet need. Earlier this year, we acquired Vector Bio, including its lead investigational asset, Apraglutide, in development for the treatment of short bowel syndrome with intestinal failure, which we believe has the potential to achieve a billion dollars in peak net sales and extend the growth horizon for our company into the 2030s. We couldn't be more excited about the potential for Preglutide. And just a few weeks ago, at the United European Gastroenterology Week, we presented positive final 52-week data from the Phase 2 STARS nutrition study in short bowel syndrome with intestinal failure and colon incontinuity, which were featured during a late-breaker oral presentation. We believe these data highlight the potential for Epirab Gukai to be the best-in-class GLP-2 analog for the whole spectrum of patients in short bowel syndrome with intestinal failure, including those with colon incontinuity, and reinforces our high conviction for the STARS clinical program. In addition, We're also excited about the progress of CMP104, a potentially disease-modifying therapy for the treatment of primary biliary cholangitis, or PBC. The design of the CMP104 program and the structure of the License Option Agreement with Core Pharmaceuticals are examples of our disciplined approach to building and progressing our development portfolio. The sound scientific rationale for CMP104 and the specificity of the target, the PDCE2 antigen, provided an opportunity to review the early effect on T cell response. This assessment showed evidence of T cell responses in patients treated with CMP104, which is very encouraging. Together, these positive developments across our pipeline reinforce our confidence in the tremendous opportunity we have in front of us. with multiple programs that have the potential to improve standard of care and improve quality of life for patients managing GI diseases. And we also have key upcoming data that will help clarify our path forward. Our commitment and optimism to develop and advance innovative GI assets is as strong as it's ever been. We believe the positive momentum across our GI pipeline programs combined with the continued strong performance of Linzess uniquely positions us on our mission to be the leader in GI. We're looking forward to a strong finish in 2023 and are very excited about the key catalysts ahead in 2024, which we believe will propel Ironwood's growth and ability to create value for patients and shareholders for the years to come. I would now like to turn it over to Mike, who will review our pipeline in more detail. Mike?
Matt
Thanks, Tom, and good morning, everyone. I'm delighted to provide an update on our pipeline programs, starting with epiglutide and short bowel syndrome with intestinal failure, or SBSIF on slide 8. Short bowel syndrome with intestinal failure results from severe organ failure due to reduction in intestinal function below the minimum necessary for normal nutrient and fluid absorption. leading to dependence on lifelong parenteral support or intravenous administration of fluid and nutrients to maintain health, growth, and survival. SPSIF is associated with increased mortality, significant morbidity, high economic burden, and reduced quality of life. On slide eight, we highlight two distinct patient populations within SPSIF that have different metabolic needs. They are stoma and colon incontinuity, often referred to as CIC. Patients with stoma often have a higher degree of fluid loss and dehydration than those with colon incontinuity, since the lack of colon makes sufficient fluid reabsorption more challenging. These patients are often dependent on lifelong parenteral support and may require parenteral support infusions for up to 10 to 15 hours a day for seven days a week. Patients with colon incontinuity typically require more nutritional support than absolute fluid volume. Colon and continuity patients, due to the presence of a functional colon, may have a better opportunity to achieve enteral autonomy, which is the elimination of parenteral support altogether. SPS-IF patients with CIC represent greater than 50% of the SPS-IF market and are a distinct patient population currently underserved by available treatments. Now to slide nine. As Tom mentioned, we're excited about the positive final 52-week data from the open label phase two STARS nutrition study. STARS nutrition is the first ever dedicated study designed to evaluate the clinical benefit of a GLP-2 analog, specifically in short bowel syndrome with intestinal failure with colon incontinuity. As you can see on slide 10, parenteral support volume reduction reached a statistically significant 40% at week 24 And the effect was maintained with a 52% volume reduction at week 52. And as shown on slide 11, all patients were clinical responders, defined as those achieving a parenteral support volume reduction of at least 20%. At week 52, seven of the nine patients, or 78%, achieved at least one day off parenteral support. At week 52, patients gained 2.1 days off parenteral support per week compared to a mean of 5.2 days per week at baseline, a significant improvement which allows patients more independence. Apiglutide was found to be well-tolerated with an acceptable safety profile. These data are a strong testament to the durability of the effect of apiglutide on improving intestinal absorption and reducing parenteral support dependency in CIC patients and reinforces our high conviction in the Phase III study. Moving to slide 12, the STARS Phase III study is the largest GLP-2 trial ever conducted in SBSIF with 164 patients and has been designed to evaluate efficacy in both stoma and colon incontinuity patient population. The STARS Phase III study's primary endpoint which includes Stoneman CIC patients, is relative change from baseline in weekly parenteral support volume at week 24. We believe apraglutide has the potential to improve the standard of care as the only once-weekly GLP-2 therapy for SBSIF. It's successful and approved. We're looking forward to the top-line data expected in March 2024, and we'll keep you updated as the study continues to advance. On slide 13 is an expanded view of our portfolio. In addition to evaluating apraglutide for short bowel syndrome with intestinal failure, we're also evaluating the asset as a potential treatment for patients with graft-versus-host disease, or GVHD. Graft-versus-host disease is immunologically mediated and occurs in individuals undergoing allogenic hematopoietic stem cell transplant, where donor immune cells react against the host recipient. The gastrointestinal tract is among the most common sites affected by GVHD. and severe manifestations of GVHD portend a poor prognosis in these patients. Enrollment is completed, and data is expected from this open-label phase 2 study in the first quarter of 24. Now to CMP104 for the potential treatment of primary biliary cholangitis. CBC is a slowly progressive and debilitating rare disease driven by an autoimmune response to the PDCE2 antigen. in which autoreactive T cells destroy the bile ducts, the underlying root cause of the disease. This may result in profound fatigue and pruritus, as well as other symptoms, and not uncommonly can lead to irreversible damage and scarring of the liver, ultimately requiring liver transplant. As Tom mentioned, given the strong science behind this clinical program, we had the opportunity to assess peripheral T cells. We completed an early assessment which showed evidence of favorable T-cell responses in patients treated with CMT-104, supporting the mechanistic rationale for this asset, which we believe could potentially impact disease progression in PBC. We're encouraged by the T-cell response, and we expect top-line data results in the third quarter of 24. As a reminder, the primary endpoint in Phase 2 study includes safety, tolerability, plus change in alkaline phosphatase. We're excited about CMP-104 because it is truly precision medicine, and it introduces a potentially new game-changing therapy for PBC patients, as there are no therapies on the market that address the root cause of this progressive liver disease. Moving on to IW3300, a wholly owned ironwood asset for the potential treatment of interstitial cystitis and bladder pain syndrome, there's a significant unmet need in this area. As this condition affects millions of Americans, yet there are very few treatment options currently on the market or in development. We're currently executing a proof of concept phase two study, which is progressing. We're excited about this program as it is the first time the crosstalk hypothesis will be tested in humans and we're proud to be at the forefront of clinical development in this area. Over the past couple of years, we've evolved Ironwood into a leading GI company with a robust pipeline that addresses serious organic GI diseases with high unmet patient need. We're looking forward to an exciting and potentially transformational year for Ironwood with several catalysts in 2024, highlighted by the top-line data from the STARS Phase 3 study in March in short bowel syndrome with intestinal failure and top-line data from the ongoing Phase 2 study in CMP104 in the third quarter of 2024. With that, I'll turn it over to Shrevan to review Linzess' performance.
Tom
Thanks, Mike, and good morning, everyone. I'll begin on slide 15. In the third quarter, Linzess delivered another quarter of impressive volume growth, increasing 8% versus the third quarter of 2022. New-to-brand prescriptions were strong once again, growing 16% year-over-year, reinforcing that patients and healthcare professionals continue to choose Linzess in a growing market. We believe Linzess there is a significant opportunity to reach appropriate new patients, drive additional prescription demand growth, including the roughly 6 million children and adolescents ages 6 to 17 who suffer from functional constipation. Since the June FDA approval in this pediatric population, we have been promoting Linzess to pediatric gastroenterologists in specific geographies, and we'll continue to assess future promotional expansion based on market response from these efforts, and we have received great feedback so far. Additionally, at the recent North American Society for Pediatric Gastroenterology, Hepatology, and Nutrition Annual Meeting, we met with a number of healthcare professionals who are excited by the ability to prescribe Blinzest to help this pediatric patient age group, which is very encouraging. We look forward to providing updates as we continue to gain more insights into this opportunity, which will help inform the investment level and net sales potential in 2024. Next. I'll provide a brief update on the VectiveBio transaction. The integration of Ironwood and VectiveBio business operations is ongoing and progressing as planned. As we continue to integrate, we remain focused on ensuring business continuity, learning from our new colleagues, and progressing afroglutide expeditiously. As a reminder, third quarter financial results, notably operating expense and cash flows, include the first full quarter impact from the VectiveBio acquisition. We also continue to take the necessary steps to effect a squeeze-out merger under Swiss law to acquire the remaining 2% of outstanding VECTIV-BIOS shares. We expect this process to be completed by the end of this year, and we will provide additional updates once this process is completed. Next, I'll provide additional details on our third quarter financial performance, starting with Linzess. As shown on slide 16, U.S. net sales were $279 million. an increase of 7% year-over-year, driven by strong Linzess prescription demand growth of 8% versus the prior year quarter, in line with their full-year guidance. Commercial margins were 72% compared to 74% in the third quarter of 2022. Ironwood revenues were $114 million, driven primarily by U.S.-Linzess collaboration revenues of $110 million. Ironwood recorded $18 million of income tax expense in the third quarter, the majority of which was non-cash. In addition, Ironwood recorded $10 million in interest expense and other financing costs and generated $2 million in interest investment income. Gap net income was $14 million, and adjusted EBITDA was $49 million. In the third quarter, we generated approximately $33 million in cash flow from operations and ended the third quarter with $110 million in cash and cash equivalents. After repaying $75 million of the outstanding principal balance on a revolving credit facility in cash. At the end of September, the outstanding drawn balance on the revolver was $325 million. Moving forward, we continue to maintain our focus on generating profits and meaningful cash flows. We will prioritize investments to maximize the value of Lins-S, progress our development portfolio, and manage our capital structure through debt paydown while maintaining the flexibility to evaluate additional opportunities for capital deployment. Next, I'll review our 2023 guidance on slide 17. We are reiterating our full-year 2023 financial guidance as we remain confident in the continued strength of LINZ-S. We continue to expect LINZ-S U.S. net sales growth of between 6 and 8 percent, Ironwood revenue between $435 and $450 million, and an adjusted EBITDA loss of approximately $900 million, which includes a one-time charge of approximately $1.1 billion from the acquisition of Vector Bio. Excluding the impact of the one-time charge, adjusted EBITDA is an approximate representation of operating cash flows. To wrap up, we are pleased with our third quarter results. and we are looking forward to a strong finish to the year. We are well positioned for continued growth and remain focused on maximizing Lens S, strengthening and progressing our innovative GI portfolio, and delivering sustained profits and generating cash flow. We are excited about continued strong Lens S performance and to keep pipeline catalysts ahead of us, which we believe will help launch Ironwood's next phase of growth. I want to close by thanking all of our employees patients, caregivers, and advocates for their shared dedication to advancing and supporting therapies for GI disorders. Operator, you may now open up the line for questions.
Operator
Thank you. And at this time, I would like to remind everyone that if you would like to ask a question today, press star followed by the number one on your telephone keypad. And we'll pause for just a moment to compile the Q&A roster. Our first Question comes from the line of Jason Butler. Your line is live.
Jason Butler
Hi, thanks for taking the question and congrats on the quarter. Just three for me. First on Linzess, can you speak to what, if any, impact the label extension had on Linzess in the quarter and what you're seeing into the fourth quarter? Second on Afroglutide, can you speak to how... improvements in antral autonomy can help by the pricing leverage or reimbursement? And then just lastly on CMP104, can you speak to the magnitude of the T cell responses and how that might, you know, speak to the predictive value for clinical outcomes? Thanks.
Tom
Yeah. So, I'll answer the first one, Jason, and I'll hand them over to Mike to get the second and third. With respect to our 2023 guidance, We're extremely excited to be able to offer LINDSES as the first and only approved prescription therapy for pediatric patients suffering from functional constipation for patients ages 6 to 17. Our sales guidance of 6 to 8% for the full year includes any impact from the pediatric indication, so it's in the guidance that we've already given. And as a reminder, I think we've stated this before, we expect minimal contribution from pediatrics in 2023. as we focus on these promotional pilot programs and as we kind of assess where we're at and we'll come back at the start of next year when we give guidance for 2024 as to what we think the opportunity size really will be for next year. Mike, you want to take the question?
Matt
Yeah, I think the question was on the enteral autonomy for the apogrutide program. I think it's an important question because patients who suffer from SPSIF and require parenteral support actually have a huge sort of economic burden with their disease because they have to connect themselves to this IV administration of fluid and nutrients, oftentimes, as we said, for multiple hours in a day for seven days a week. So your question is on enteral autonomy, but we need to remember that even reducing that requirement by a day or two is a significant economic improvement because for these things to happen every day, it's a huge burden on the patient, but also a financial burden. Achieving enteral autonomy is where you remove completely the need for parenteral support. So that's why enteral autonomy in a way is curative related to parenteral support need because you no longer need to tether yourself to the IV fluid administration every day. So that's why we think it's a very important consideration in this population. It's also important to understand that prior products haven't really focused on the colon and continuity patient population. And with our approach, we think we have a great opportunity in that population to potentially achieve enteral autonomy.
Tom McCourt
And then lastly on the CMP. Oh, sorry. The other part of the question that I thought I heard was how does this lend to really the pricing opportunity? And obviously the value proposition here is very, very strong. One, as Mike mentioned, this is a really burdensome disease. These patients are very costly to manage. And there's certainly a price point out there already established with the currently available therapy, which is sizable. So I think we're looking at bringing a very strong clinical profile to the table that can basically manage probably a broader patient population in a more significant way, which obviously is going to put us in a pretty good position as far as where we would enter the market and how we would enter the market. And maybe, Mike, you can talk specifically about the T cells.
Matt
Yeah, sure. So it's a good question. And I can tell you what we can tell you, okay, from a T cell response magnitude. I mean, remember, as Tom alluded to this as well, the reason we did this deal was because of the strong science behind the clinical study and the chance to assess the potential opportunity by analyzing peripheral T cells. And recall, there's a peripheral T cell look for a disease that's confined to the liver and the bile ducts. So we completed the early assessment. which showed evidence of T cell responses, which really support the mechanistic rationale for CMP, which we believe could potentially impact disease progression. But it was a very small, unblinded review, which was to determine if we could see this effect on T cells. So while we're encouraged by the early look and by the favorable findings, we do need to remember that, as a reminder, the primary endpoint for the Phase II has safety tolerability as well as ALKFAS. And we're really looking forward to that data set to better understand what these changes in the peripheral T cells mean on clinical endpoints.
Operator
Thanks, Jason. Thank you for the questions. Our next question is from the line of David Anselm with Piper Sandler. Your line is live.
Jason
Hey, thanks. So just had a couple of commercially-oriented questions on blue tide. Can you just remind us of the size of the CIC patient subgroup relative to the stoma subgroup? That's number one. Number two is, what is the approximate, if you have this patient footprint or number of patients that are on GATEX. And what's your estimate of, you know, the number of patients over time that have cycled through it? That's number two. And then lastly, just latest thoughts on how you're thinking about pricing of apraglutide to the extent that a generic of GATEX materializes. Thank you.
Tom
All right. So I think I'll start. On the first one, and then Mike, you got, you checked me on this. Our estimates right now are that the market is essentially 50-50 between stoma patients and CIC patients. The overall market size is roughly globally 17,000 patients. And so, and it's roughly 50-50 between the two subsets. Number two, with respect to the patient footprint on GATx and the number of patients treated, I think our... Again, this is all public information, and this is, you know, to be checked. I think our understanding is that it's about 2,000 patients in the U.S. that have been treated by GATEX, and so that's the number that we have. And then third, David, on pricing, I think Tom already answered this question. I think we're going to... You know, the GATEX already has a... you know, a number that's out there. With respect to the idea of a generic, you know, I think our view is we're going to come with a very interesting and compelling data package here, hopefully, and we'll find out in a few months. But hopefully we'll have a compelling data package to bring to the market and something that will be quite competitive. And then I think on top of that, the idea of a generic We don't really see the generic being that viable here, just there's not that much patient population. As you can see from GASX, only having treated 2,000 patients in the United States, it's not an asset for a disease state we think is heavily managed. And there isn't a lot of volume to go get from a massive reduction in price in this one.
Tom McCourt
And I think we also feel that it's not a real high probability that we'll see a generic Certainly, there's been an antifile, but nobody's really acted on it. And obviously, you're going to have to maintain a REMS program, etc. So there's a lot of mechanics to be able to launch a generic and support the generic. So I do think that... And I think when you look at the fact that about 50% of patients discontinue therapy on GADX you know, within the first year, I think it speaks to the limitations of the drug. And I think, you know, having a drug, you know, move from like daily injections to once a week injections and a drug that's certainly more potent and longer acting, you know, really could help a broader patient population, particularly these CIC patients.
Jason
Thanks, David. Thank you.
Operator
Thank you for your question. Our next question is from the line of Boris Peeker with TD Cohen. Your line is live.
Boris Peeker
Great. A couple of questions for me. First, on 104, just curious why aren't you disclosing the T-cell data? Or maybe another way to ask it is when will we see the actual T-cell data? And then on the apoglutide, if we look at Zeeland's glupoglutide, they showed that 14% of patients become independent of parental nutrition. I'm just curious how important is that in terms of kind of assessing the Afroglutide data.
Tom
Yeah. Thanks, Boris, for your questions. On the first question, you know, I'll take it, and then Mike, again, obviously add additional color. I don't think we ever, I think our plan is always to run this trial to completion before we read out any results, and we've always contemplated that being a 2024 event. I think at this point in time, we're able to say that we think we'll be able to have a readout in the third quarter of 2024. for the trial, and I think that's when you'll see a more complete data set around the primary endpoint. Mike, I don't know if there's anything else. No, I think it's fair. All right, and then the second question, do you want to take the second one?
Matt
Yeah, so for the enteral autonomy question, it's a good question. Clearly, there was enteral autonomy achieved in the CLEPA program that's in the public domain, and you may have seen from our presentation at the UEG meeting on the SARS nutrition data that we had internal autonomy achieved in the nutrition study as well. It may have to be a higher percentage in the 14% that glupaglutide has published, but nonetheless, it's a small open-label study, so we're just looking forward to the Phase III data to better define those outcomes for the patient populations we have in the STARS study.
Boris Peeker
Great. Thanks for taking my question.
Operator
Thank you for your question. Ladies and gentlemen, once again, if you would like to ask a question on today's call today, remember it's star followed by the number one on your touchtone keypad. Our next question is from the line of Tim Chang with Capital One. Your line is live.
Tim Chang
Hey, thanks. You know, since we're almost done with 2023, and obviously you're doing still quite well with Linzess, you know, I sort of wanted to get your thoughts on how you sort of look at growth rates for Linzess for next year. Obviously, you'll probably provide some guidance at the beginning of next year, but how do you guys think Linzess is situated at this point?
Tom
Thanks, Tim. Good to talk to you. I think as we've said already, we're excited about the performance of Linzess right now and the volume growth we've had in 2023. The fact that we're in year 11 of the drug, still driving high single-digit Demand growth is just a great outcome. So we think that a lot of untreated patients continue to be in a growing market, so we're excited about that. With respect to future guidance, I think we'll give guidance at the appropriate time, which is next year in the early part, like we always do.
Tom McCourt
Yeah, I think, you know, Tom, it's been really remarkable over the last three years how steady the growth year-over-year has been. And certainly, you know, this year has actually been stronger than we've seen in a long time. And what's probably the most important lead indicator here is the volume increase in new-to-brand patients. You know, we're at, you know, 15%, 16% increase year-over-year, which is always probably the best predictor of future growth. So, We're certainly not signing up for a 15% increased number for next year, but certainly it's looking very, very strong, and certainly we're still assessing the upside from the pediatric indication. There's no question we're seeing some growth there, and we really need to really understand kind of how much we should be investing in that growth opportunity. But I think things look bright, and I think we're very confident in what we'll see next year.
Tim Chang
Maybe just one follow-up. You know, obviously, you know, we all get a lot of questions about the GLP-1s, about the weight loss drugs. Have you seen any impact? I mean, is there any impact to Linzess from, you know, these GLP-1 drugs for weight loss?
Tom
Mike, do you want to kind of take this?
Matt
Yeah, I mean, it's a fair question, and we do get questions on it as well on our side. I mean, because as you know, I mean, the GLP-1s, are definitely being heavily used. And it's also true that obese patients also suffer from constipation quite regularly, too. So there is a lot of concomitant use. I mean, the actual impact, though, that you really want to get at, it's hard to nail that down at present, but we certainly appreciate the question. There may be some things there. We're looking into it, but we don't really have a direction right now to how to impact that.
Operator
Okay, great. Thanks. Thank you for... your question and ladies and gentlemen that will conclude today's ironwood pharmaceuticals q3 2023 investor update conference call thank you all for joining you may now disconnect
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