10/30/2025

speaker
Operator

Good afternoon and welcome to the Travere Therapeutics Third Quarter 2025 Financial Results Conference Call. Today's call is being recorded. At this time, I would like to turn the conference call over to Nivi Nera, Vice President, Corporate Communications and Investor Relations. Please go ahead, Nivi.

speaker
Nivi Nera
Vice President, Corporate Communications and Investor Relations

Thank you, Operator. Good afternoon and welcome to Travere Therapeutics' Third Quarter 2025 Financial Results and Corporate Update Call. Thank you all for joining. Today's call will be led by Dr. Eric Hubei, our President and Chief Executive Officer. Eric will be joined in the prepared remarks by Dr. Jula Enrich, our Chief Medical Officer, Peter Hirma, our Chief Commercial Officer, and Chris Klein, our Chief Financial Officer. Dr. Bill Rote, our Chief Research Officer, will join us for the Q&A. Before we begin, I'd like to remind everyone that statements made during this call regarding matters that are not historical facts are forward-looking statements within the safe harbor provisions of the Private Securities Litigation Reform Act of 1995. Forward-looking statements are not guarantees of performance. They involve known and unknown risks, uncertainties, and assumptions that may cause actual results, performance, and achievements to differ materially from those expressed or implied by the statement. Please see the forward-looking statement disclaimer on the company's press release issued earlier today, as well as the risk factor section in our forms 10-Q and 10-K filed with the SEC. In addition, any forward-looking statements represent our views only as of the date such statements are made, October 30th, 2025. Interviewers specifically disclaims any obligation to update such statements to reflect future information, events, or circumstances. With that, let me now turn the call over to Eric.

speaker
Dr. Eric Hubei
President and Chief Executive Officer

Thank you, Nivi, and good afternoon, everyone. The third quarter marked exceptional progress across our three key priorities. delivering strong commercial execution in IgA nephropathy, preparing for a potential FDA approval in FSGS, and successfully advancing the manufacturing scale-up of PEG-2-batinase to support restarting enrollment in the Pivotal Harmony Study in 2026. The core driver of our performance is Silspari's continued growth in IgA nephropathy, where we delivered sustained commercial excellence in the third quarter. Physicians continue to confidently adopt Silspari as a foundational nephroprotective therapy for their patients. This confidence reflects consistent real-world outcomes, robust long-term data reinforcing Silspari's differentiated profile, and its recent inclusion in the CADEGO guidelines for earlier first-line use to optimize nephroprotection in IGANS. Additionally, in August, the FDA approved a modification to the Filspare REMS program, removing the embryo fetal toxicity REMS and reducing the liver monitoring frequency to quarterly, which aligns with routine clinical practice and our clinical trial experience. This change not only simplifies care for physicians and patients, but also reinforces Filspare's long-term safety profile. Our U.S. performance continues to be complemented by strong progress from our partners globally. In Europe and the UK, CSLv4 is expanding access following full regulatory approvals, and the progress has culminated in the recent achievement of a meaningful market access milestone. In Japan, Rinalis completed enrollment in its registrational trial in IGAN and remains on track to deliver top-line data in quarter four. The company also reached an agreement with the PMDA of Japan to initiate two phase three trials for sparsentin in FSGS, and Alport syndrome, and recently announced its planned acquisition by Chugai, a leading innovator in renal and rare disease research in Japan. Together, these milestones underscore PhilSparry's expanding global footprint and the growing excitement around its long-term potential to transform care for rare kidney diseases. Beyond our progress in IGEN, addressing the urgent need for an approved medication in FSGS is both central to our mission and represents the next pillar of growth for Trevir. Today, there are no FDA-approved medicines for this disease. Patients often experience rapid disease progression with many reaching kidney failure within just a few years of diagnosis, often requiring a transplant. Even then, The disease recurs in approximately half of transplant recipients. The consequences are devastating for patients and their families. Earlier and more effective treatment is desperately needed, which is why the opportunity to bring Silspari forward in FSGS is so meaningful for this community who have waited far too long. In September, the FDA communicated that an advisory committee is no longer needed for our SMDA and FSGS. We've been pleased with the progress of our review and our ongoing engagement with the agency to date. Pending approval, Bilspari will become the first and only approved medication for FSGS, representing a landmark moment for this community, and given the urgent need for an effective approved medication, a transformational opportunity for Trevere. Our teams are fully prepared to execute a rapid launch upon approval. building upon the commercial foundation we've established in IG nephropathy. Beyond Filspari, we have successfully manufactured the first commercial scale batches of PEG-2-batinase and are looking forward to an expected restart of the pivotal Harmony study of PEG-2-batinase in classical HCU next year. PEG-T remains a promising, potentially disease-modifying investigational therapy that could address a substantial gap for patients living with this rare metabolic disorder. I'll now turn the call over to Jula for a clinical update. Jula?

speaker
Dr. Jula Enrich
Chief Medical Officer

Thank you, Eric. One of the most significant milestones this quarter was the inclusion of dual endothelin angiotensin receptor antagonism in the updated CADIGO guidelines for IgA nephropathy, a strong external validation of Filspari's role as foundational treatment. Cadigo includes filspari as a first-line option for patients who are at risk of IgA nephropathy progression, recognizing it as the only therapy with proven efficacy versus optimized RAS inhibition. The guidelines also recommend simultaneous treatment of the two drivers of IgA nephropathy progression, targeting both the upstream immune activation that causes pathogenic IgA deposition and the downstream glomerular injury that leads to nephron loss. This holistic framing of disease management aligns with Filspare's mechanism of action as the only fully approved non-immunosuppressive nephroprotective treatment which can be combined with immune targeted medications to optimize long-term outcomes for patients living with IgA nephropathy. Across our KOL engagements following the publication of the guidelines, nephrologists have described the new KDGO framework as a true paradigm shift that validates early and comprehensive intervention. We believe this recognition cements the position as foundational care in IgA nephropathy, guiding a new era of evidence-based treatment sequencing. A further testament to our leadership in rare kidney disease is our focus on data generation and dissemination, as exemplified by numerous scientific presentations and engagements at recent congresses, including our 11 upcoming presentations at ASN Kidney Week. A few highlights of this data include the Phase II SPARTAN trial in RAS inhibitor-naive patients with IgA nephropathy, Demonstrating that irrespective of baseline proteinuria levels, filspari consistently reduced proteinuria and led to significant reductions in urinary biomarkers of disease activity, including reductions in immune system and complement activation markers indicating potential disease modifying qualities of filspari. We also have two new presentations from the phase three PROTECT trial in IgA nephropathy. one evaluating efficacy across historical histopathology from kidney biopsies, and another assessing outcomes based on time from IgA nephropathy diagnosis. Both presentations reinforce the SPARTAN findings and align with the CADIGO recommendations, showing that earlier treatment of patients with Vilspari can lead to greater nephroprotection. We also continue to generate and present real-world and long-term data across a broad spectrum of IgA nephropathy disease severity, demonstrating Silspari's consistent benefit in reducing proteinuria and preserving kidney function. In FSGS, as Eric highlighted in his opening remarks, we are pleased with the progress of our review. The agency remains engaged on our submission, and from our perspective, the process continues to be similar to our experience during the IGaN NDA review. Ahead of a potential approval in January 2026, our medical affairs teams are deeply engaged, expanding disease education, strengthening nephrologist awareness around the importance of proteinuria and FSGS disease progression, and responding to queries regarding how the duplex data could translate into real-world benefit for this underserved patient population. At ASN, we are presenting several new analyses from the duplex study, including a late-breaking analysis that demonstrates that patients treated with Vilspari achieved proteinuria levels of less than 0.7 grams per gram more frequently versus maximum labeled dose erbisartan, and patients who achieved this threshold had a lower risk of kidney failure, irrespective of treatment arm. This analysis demonstrates further alignment and supports the conclusions of the parasol working group that lower levels of proteinuria translate into meaningful improvements in kidney outcomes. We also have data that extrapolates the anti-proteinuric treatment effect of Filspare versus Urbisartan seen in the two-year duplex trial into longer-term kidney failure outcomes from the UK Rare Disease Renal Registry or RADAR. And we also have subgroup analyses of pediatric patients and patients with collagen IV genetic mutations demonstrating a consistent antiprotein treatment effect with Filspare versus erbicertin in these two high-risk, difficult-to-treat patient populations. With no approved medicine for patients with FSGS today, the opportunity to bring Filspare forward is both urgent and transformative. The supportive data from Duplex and our regulatory momentum give us confidence in the path ahead. With our goal to provide filspari as a foundational treatment for patients with IgA nephropathy and ultimately those with FSGS, we are pleased that the FDA approved modifications to our REMS program, removing the embryo fetal REMS and reducing the frequency of liver monitoring to quarterly. The feedback we've heard from nephrologists is that these changes are welcomed, the monitoring frequency aligns with how they care for their patients in clinical practice, and these changes can help increase access for the subset of patients for whom monthly testing was an impediment. Turning to our PEG to Batenase development program for the treatment of classical HCU, we recently presented long-term data at the ICIEM Congress from cohort six in our phase one two composed open label extension. At the 2.5 milligrams per kilogram twice weekly target dose, patients treated with PEG-tobatinase achieved sustained and clinically meaningful reductions in total homocysteine and methionine over an additional year of follow-up. Remarkable results in the context of an open label study. Importantly, We have successfully manufactured the first commercial scale batches of pectobatinase and have generated data to support FDA interactions. This progress positions us for an expected restart of enrollment in the pivotal phase three Harmony study next year, reinforcing our commitment to advancing the only investigational therapy with disease modifying potential for patients with classical HCU. I will now turn the call over to Peter for a commercial update. Peter?

speaker
Peter Hirma
Chief Commercial Officer

Thank you, Joanne. I am very pleased to share that the third quarter marked another period of strong commercial performance and continued momentum for Filspari in Hygiene Apropathy, reinforcing its position as a foundational therapy. Filspari net product sales reached approximately $91 million in the third quarter, representing another quarter of strong growth driven by consistent demand and deepening engagement among new and experienced prescribers. Demand for Filspari remains robust with 731 new patient start forms received during the quarter despite experiencing some summer seasonality as is typical in the summer months. In fact, In September, we recorded our highest daily patient start form rate since launch, and we are seeing that trend continue into October. Throughout the quarter, we saw durable utilization among existing nephrologists and a continuation of new prescribers. Importantly, we are seeing a steady increase in the number of practices treating multiple patients with filspary, which highlights growing confidence in the therapy's profile and real-world performance. As the IgA nephropathy treatment landscape evolves, we continue to hear consistent feedback from the nephrology community, reinforcing that physicians view filspary as the preferred novel therapy, not only because of its proteinuria efficacy, but because it delivers a meaningful long-term improvement in kidney outcomes while allowing patients to maintain a normal lifestyle through a long daily oral regimen. And we are encouraged by the response of the nephrology community to the modification of our REMS program. This simplification makes filspary treatment even more convenient. particularly for newly diagnosed or lower risk patients as quarterly monitoring is consistent to nephrologist clinical practice. We are pleased to see continued uptake of Vilspari among patients with lower paternuria levels, reflecting growing recognition that patients above 0.5 gram per gram remain at risk of progression in alignment with our broader label and the Cadego guidelines. Patient satisfaction is strong, as evidenced by consistently high compliance and persistence. As we continue to expand PhilzParis REITs, our patient services and fulfillment programs remain an important contributor. We have maintained broad payer coverage, with easing of prior authorization requirements to reflect PhilzParis' broader label, long-term evidence, and positioning in the guidelines. Turning to FFDS, if approved, Filspari will become the first approved medicine for FFDS, a leading cause of kidney failure. Given the high degree of overlap between the FFDS and the IgA nephropathy prescriber base, we will be able to build upon strong brand awareness and familiarity of Filspari with many physicians that have already had experience with the products. Given the heightened needs for an approved medication and the progressive nature of FSDS, we believe this could be an even bigger opportunity with a more rapid uptake versus our launch in IgA nephropathy. We know the FSDS community is eagerly awaiting an effective medicine, and we will be ready to launch in January if approved. In summary, the third quarter represents another quarter of exquisite execution and continued growth for felspari in IgA nephropathy. The combination of clinical product differentiation, early intervention, strong prescriber confidence, and a consistent patient experience continues to drive momentum. and positioned Filspari as a foundational and nephroprotective choice among IgA nephropathy therapies. With our strong commercial foundation and expanding real-world experience, we remain confident in Filspari's ability to deliver sustainable growth and long-term leadership in rare kidney disease care. I am sincerely proud of the continued performance of our commercial teams and the dedication they bring every day to support patients and physicians. Their success in establishing Phil's power in IgA nephropathy gives us great confidence in our ability to execute effectively in FFDS and we will be ready if approved. Let me now turn the call over to Chris for the financial update.

speaker
Chris Klein
Chief Financial Officer

Thank you, Peter, and good afternoon. This quarter, we delivered another strong set of financial results with continued significant revenue growth and disciplined financial investment. As Peter mentioned, our top-line expansion reflects the strength of our underlying Sospari business and the consistent execution across our key commercial initiatives, momentum that we believe sets us up for durable growth ahead. We also further strengthened our financial foundation by repaying our remaining 2025 convertible notes And significant value was generated from our partnerships, including the recently achieved $40 million market access milestone from CSLB4 and the announced acquisition of Rinalis by Chugai. Both great examples of how our collaborations continue to create value and validate the potential of Filspari globally. Starting with revenue, in the third quarter, we generated US net product sales of $113.2 million. Filspari continued to grow significantly in the third quarter, generating $90.9 million in US net product sales, which represents an increase of more than 155% year-over-year. From a gross-to-net perspective, Silspari had a one-time benefit of less than $2 million during the quarter, and we continue to anticipate higher discounts in the fourth quarter. Elsewhere, Thiol and Thiol EC contributed $22.3 million in U.S. net product sales, and we also recognized $51.7 million of license and collaboration revenue, which results in total revenue of $164.9 million for the quarter. Included in the license and collaboration revenue line this quarter is a $40 million market access milestone that was achieved by CSLB for. We recently received payment, which will be reflected in our cash balance in the fourth quarter. Also included in the license and collaboration this quarter is $9.3 million in non-cash revenue that resulted from the relinquishment of our option to acquire Rinalis in anticipation of their agreement to be acquired by 2GUY. Moving to operating expenses, our research and development expenses for the third quarter of 2025 were $51.9 million compared to $51.7 million for the same period in 2024. On a non-GAAP adjusted basis, R&D expenses were $47.8 million compared to $48.4 million for the same period in 2024. Selling general and administrative expenses for the third quarter were $86.5 million compared to $65.6 million for the same period in 2024. On a non-GAAP adjusted basis, SG&A expenses were $63.5 million for the third quarter compared to $49.7 million for the same period in 2024. The increase in SG&A is primarily attributable to investments and preparations for a potential launch in FSGS in January, increased amortization expense related to Filspare royalties, as well as an increased investment in supporting commercial efforts for Filspare in IG and the property following full approval. Total other income net for the third quarter of 2025 was less than $1 million compared to $1.3 million for the same period in 2024. Net income for the third quarter of 2025 was $25.7 million or 29 cents per basic share compared to a net loss of $54.8 million or 70 cents per basic share for the same period in 2024. On a non-GAAP adjusted basis, net income for the third quarter of 2025 was $52.8 million or 59 cents per basic share compared to a net loss of $35.6 million, or $0.46 for basic share, for the same period of 2024. As of September 30, 2025, we have cash, cash equivalents, and marketable securities totaling approximately $254.5 million. This balance reflects our repayment of the remaining $69 million in 2025 convertible notes, and as I highlighted earlier, it does not yet reflect the proceeds of the $40 million milestone payment from before, and it also does not yet include any proceeds from the recently announced acquisition of Rinalis by Chugai. As we move forward, we are well-positioned to sustain our momentum in IG nephropathy, execute a successful launch in FSGS if approved, and advance the reinitiation of enrollment in our pectabatinase phase 3 study next year. Importantly, we're doing all of this from a position of financial strength with no near-term need for additional capital to execute on our core objectives. This foundation gives us confidence in our ability to execute on our key priorities and continue advancing our mission for patients. I'll now turn it over to Eric for his closing comments. Eric?

speaker
Dr. Eric Hubei
President and Chief Executive Officer

Thank you, Chris. In Q3, we made tremendous strides across all of our programs, and I am proud of how every employee shows up with passion and focus to advance our mission. One great example is our PEG to Batenase team, who has diligently solved scale-up challenges so that we are positioned to restart the Harmony trial next year. October is HCU Awareness Month, and it is a fitting reminder of how much work is still needed to allow families affected by HCU to live with a little less worry and a bit more hope. We've entered the final months of 2025 confident in our ability to sustain Filzbari's growth in IGAN, to successfully execute on a potential approval and launch in FSGS, and to advance our pipeline with focus. We have the right people, a strong financial foundation, and the momentum to bring incredible innovation to the rare disease communities that have been waiting far too long. I'll now turn the call over to Nivi for Q&A. Nivi?

speaker
Nivi Nera
Vice President, Corporate Communications and Investor Relations

Thank you, Eric. Operator, we can now open up the line for Q&A.

speaker
Operator

Thank you. Ladies and gentlemen, we will now begin the question and answer session. To ask the question, you may press star, then one on your touchtone phone. If you are using a speakerphone, please pick up your handset before pressing the keys. To withdraw your question, please press the pound key. As a reminder, we ask that you limit yourself to one question. If you have another question, please rejoin the queue. We will now take the first question from the line of Joel Schwartz from Learing Partners. Your line is open.

speaker
Joel Schwartz

Great. Thanks, and congrats on another strong quarter of execution. With the new label approved in August, can you quantify either qualitatively or quantitatively the early impact of the REMS adjustment? Are you seeing new prescribers or a new patient base that might have been more reluctant Previously, it seems like with such a strong beat this quarter, you might not be seeing any competition, competitive impacts, or are you seeing any at all? And it was just offset by the updated label. Any color you could provide would be great. Thanks.

speaker
Dr. Eric Hubei
President and Chief Executive Officer

Thanks, Joe. Peter, why don't you take that question?

speaker
Peter Hirma
Chief Commercial Officer

Yeah, thanks, Joe. It's a good question. I think you're asking two questions. One is, what is the impact of the REMS modification so far? And two, are you seeing any impact of competitive dynamics? I think overall, I would say we see very consistent demand since we had our full approval last year. And that consistently has not been impacted by launches of new products that came into the marketplace. So I think very robust continuation of growth. I think to your first question with regards to the REMS modification, I think that is certainly a tailwind that we are having and that has been very positively received by the nephrology community. What we are seeing is that we have a continuation of new prescribers while we also continue to expand within experienced prescribers. And I think especially the REMS modification from a monthly base to a quarterly base in the first year really helps for those patients that are not as sick as the higher proteinuria levels, but still are at significant risk of progression of disease, those patients may not see their physician on a monthly basis or may not do traditional testing on a monthly basis, but certainly do it at a quarterly basis. So I think the timing of the REMS modification fits very nicely in the expansion of the patient population that we are seeing.

speaker
Joel Schwartz

Very helpful. Any insight into any competitive pressures at all, or have you not detected any?

speaker
Peter Hirma
Chief Commercial Officer

Yeah, as I mentioned, we have seen very consistent demand. I would say Q3, we saw less of an impact of seasonality than we saw last year, and that in a more competitive landscape. So I would say that that gives you a color of our execution and performance in Q3.

speaker
Dr. Eric Hubei
President and Chief Executive Officer

James Heiting. Yeah, that's great, Peter. And the only thing that I would offer in addition, Joe, is that not only did we see the modification of REMS, as you alluded to, which makes it just that much easier for physicians and patients, but we also saw the publication of the Cadego guidelines that further reinforce the positioning of Filspari And I think both of those in combination, of course, with the phenomenal execution of Peter's team continues to reinforce our strong position within this market.

speaker
Joel Schwartz

Thank you.

speaker
Gavin Clark Gardner

Thank you.

speaker
Operator

Laura Chico from West Bush, your line is open.

speaker
Laura Chico

Good afternoon. Thanks very much for taking the question. Just two quick ones for me. First, with respect to Silspari at this point, Do you have a sense as to what the typical baseline proteinuria level is at start of prescribing? I think Peter made a comment about perhaps some patients coming in now with a lower level. Second, are you detecting any off-label use in the FSGS setting at this point? Thank you very much.

speaker
Dr. Eric Hubei
President and Chief Executive Officer

Thanks, Laura, for those questions. I'll take the second one regarding FSGS. We do see some limited prescribing and use in FSGS. We, of course, do nothing to promote that, but we are seeing physicians, some physicians make that choice. And I will turn it over to Peter to ask your question or answer your question about baseline UPC.

speaker
Peter Hirma
Chief Commercial Officer

Yeah, thanks, Laura. So, what we have seen since we had the full approval last year in September is that we have seen consistently the baseline proteinuria levels are well beyond below 1.5 gram per gram, and it's what you would expect. I mean, the larger patient population, about 65% of the patient population has proteinuria levels below 1.5, and we're making good inroads in penetrating debt market segments, and what you would expect is that you will see a continuation of lower proteinuria levels at initiation.

speaker
Operator

Thanks very much.

speaker
Joe Pantkinis

Thank you.

speaker
Operator

Anupama Rama from JP Morgan. Your line is open.

speaker
Anupama Rama

Hey, guys. Thanks so much for taking the question, and congrats on the quarter. Just in the context of the beat that you guys had here with Phil Sparry, how do we think about sort of the quarterly quarter-over-quarter declines in patient start forms? I know you mentioned some summer seasonality, but there were those tailwinds from guidelines and RENs. What are the considerations there? Anything to note on gross net or inventory?

speaker
Dr. Eric Hubei
President and Chief Executive Officer

Yeah, maybe I can frame this and then have Peter and Chris offer anything further. I think the strong performance in demand in Q3 really reflects that underlying expectation And I'll have Peter talk about some of the trends within the quarter that we saw. But it really is about the seasonality. While we didn't see as much impact this year as we did last year, we certainly did see some of that, you know, in terms of the slower months. And Peter, maybe you can allude to that. And Chris, you can talk about the gross to net impact in Q3.

speaker
Peter Hirma
Chief Commercial Officer

Yeah, happy to comment on that, Anupam, and thanks for that question. I'm actually really pleased with the performance and demand we saw in Q3. In particular, what I outlined during the call, September, we had the strongest daily patient start from generation, and that trend is continuing in October. So I think very strong demand. And as I mentioned earlier, we have seen less of an impact of seasonality in a more competitive environment. So I think the performance is really strong. And yeah, I couldn't be more proud of the team to continue to execute in the way they do.

speaker
Chris Klein
Chief Financial Officer

And Anupam, on the growth to net factor for this quarter, we did highlight that there was less than $2 million benefit. And really, that's just working through the first year here in Part D and having the true ups as we go throughout the year. Looking ahead, we've guided to throughout the year that the back half may have higher growth than us. That remains the same for the fourth quarter. But we're still right around that guidance of around 20% for the year. And the fundamentals, as Eric and Peter highlighted,

speaker
spk10

very strong so we're looking forward to to the end of the year here thanks animal tyler van buren from qd cohen your line is open hi this is francis on for tyler um what can we expect in terms of communication leading up to the fsgf to due date in January, is it possible that you'll disclose if and when you're in labeling discussions?

speaker
Dr. Eric Hubei
President and Chief Executive Officer

Francis, thanks for the question. It's been our practice not to comment on ongoing FDA interactions. And like we did during our IGAN review, we'll be entering a quiet period as we approach the PDUFA date. So, you wouldn't expect any updates from us during that time, but we will provide and look forward to providing updates on January the 13th.

speaker
Operator

from CP Group. Your line is open.

speaker
kwls peter

Hi, guys. Thank you very much for taking the questions. So I wanted to ask about REMS and CADIGO. I'm just curious, you know, when you're in the field now with the new message around the reduced REMS and the better CADIGO guidelines, you know, how many of the practitioners are sort of aware of these changes or were informed outside of the channels through TREVIR, or is it really that everyone, that the information is coming from TREVIR in terms of learning about

speaker
Peter Hirma
Chief Commercial Officer

better rems and the cadigo just how is that information flowing it'd be interesting to understand a little better thank you yeah if you want to take that and then jula if you have anything further from your engagement with kwls peter happy to take that along i mean it was a year ago that cadigo uh disclosed their draft guidelines and i think familiar the the key opinion leaders and the thought leaders they were well familiar with the But what we're seeing now is the full publication that it really trickles down to the community nephrologist as well. And so that publication really helps there. And our team is certainly, it fits nicely in our educational efforts with physicians. With regard to the REMS modification, that is really up to us to communicate to physicians. And like I said in the prepared remarks, I'm really pleased with the reaction and the response we got from physicians of that modification in the first year and how this fits very nicely with their clinical practice, not having to have that monthly monitoring, but doing it at a quarterly base from the get-go. And like I said, I mean, this is something that they're doing on a quarterly base anyway, so there is no additional burden for the physician, neither for the patients.

speaker
kwls peter

Okay, and then on peg to batonets, just very quickly, is the scale up basically a completed project now, or is there any more work to do to make sure you have enough supply for the whole HCU market? Thanks, Chagall. Bill, why don't you take that one?

speaker
Dr. Bill Rote
Chief Research Officer

Certainly. Well, we're very pleased to have completed our first commercial batches. This enables us to engage with the FDA as was planned, which enables the restart of the study in the next year. We will continue additional manufacturing campaigns in parallel with the study running to do the further characterization work that's required for the BLA and to build stock for launch. But the key milestone is getting to this scale of manufacture and so that we can restart enrollment in the phase three study.

speaker
Operator

Gavin Clark Gardner from Evercore. Your line is open.

speaker
Gavin Clark Gardner

Hey, guys. Thanks for taking the question. And I'm sorry to go back to kind of the net price discussion, but even if I take a couple million out there for the one-time net price boost, I think the revenue is still a bit higher than some investors were anticipating based on the PSF trajectory. I'm just curious, like, Is this volume of PSS trajectory that you got like this quarter and last quarter, which is fairly consistent, is the revenue growth you're seeing based on that something we should be extrapolating going forward? Like how much is the Q4 gross to net impact? Thanks so much.

speaker
Dr. Eric Hubei
President and Chief Executive Officer

Thanks, Kevin. Chris, why don't you take that?

speaker
Chris Klein
Chief Financial Officer

Sure, so I think one of the things that Peter has mentioned along the way is that we've continued to refine our, you know, our pull-through process, and we've really made good progress there. So I think that's part of what's driving the revenue growth that has been able to outpace the PSF growth over time. We've also seen very strong compliance and persistence. You know, I think, again, that's another testament to the overall profile for Filspare. And on the growth to net front, we haven't broken it down specifically by quarter. But the 3rd quarter was similar to the 2nd quarter slightly lower. We would expect that to increase in the 4th quarter. And overall for the year, we're expecting to come out right around to the 20% mark. So that's about as much of the guidance as we can provide at this point. But hopefully that gives you a better sense for how to model that out.

speaker
Gavin Clark Gardner

Yeah, that's really helpful. Thank you.

speaker
Operator

Mohit Bansal from Wells Fargo. Your line is open.

speaker
Mohit Bansal

Thanks for taking my question, and congrats on the progress. So in FSGS, I think we might see some data from Novartis soon with Atrasentin from their basket trial. Can you talk about advantages you see with a dual ERA mechanism in this indication compared with an agent like Atrasentin? which doesn't have the RAS inhibitor component, especially, you know, this being an indication where there is not as high background use of RAS inhibitors compared with IgAIN. Thanks.

speaker
Dr. Eric Hubei
President and Chief Executive Officer

Thanks for that question. Jule, why don't we have you answer that?

speaker
Dr. Jula Enrich
Chief Medical Officer

Certainly. It is quite important in FSGS, which is a true podocytopathy that's at the heart of the disease. to target it with both endothelin and angiotensin II together to have the greatest nephroprotective potential. And we also see that with the magnitude of proteinuria reduction we see in this patient population of filspari being used, we see about a 50% reduction in proteinuria that's durable out to two years. And that's where we have the confidence that this is the right way to target these patients to provide them long-term kidney protection. I understand there might be some use of single agents. I won't comment on the lack of data that we have regarding atrocentin. We really haven't seen anything to date, so I can't comment on what that gap might leave behind when you don't target both mechanisms. We know when we target both mechanisms, we get more patients into complete remission, as well as greater reductions in proteinuria and FSGS, and that's what really matters.

speaker
Operator

Tata, thank you.

speaker
Dr. Eric Hubei
President and Chief Executive Officer

Thank you.

speaker
Operator

Prakhar Agarwal from Canthor, your line is open.

speaker
spk00

Hi, thank you for taking my questions. So what is during the earnings said that they have 20% in VRS share, 10% of that is coming from Wenrafia and the rest is from Fabralta. So maybe if we can expand on where you are seeing Wenrafia and Fabralta as gaining share. And then another follow up on IGAN, you said September was the strongest month and October you're also seeing good consistent demand. So should we expect the new patient start forms to increase sequentially in 4Q? Thank you.

speaker
Dr. Eric Hubei
President and Chief Executive Officer

Thank you for the questions. Peter, why don't you take those?

speaker
Peter Hirma
Chief Commercial Officer

Yeah, I am happy to take that question. What we have seen, and I mentioned that before, is that we see very consistent in steadily growing demand since we had our full approval in September last year. And the launch of Atra Centum or Etecopen has not really changed that. I mean, Etecopen was launched basically at the same time as we had full approval. Atra Centum was launched like six months ago. But it hasn't really changed our trajectory and our continuation of the momentum. So I couldn't be more pleased with the execution and what we are seeing. And I think now with the REMS modification, As well as the guidelines, I think those are additional momentum builders for us. And so I remain very confident in a more competitive landscape.

speaker
Dr. Eric Hubei
President and Chief Executive Officer

Yeah, and just to add with regard to, you know, whether you can expect sequential increase We've not provided guidance. What Peter shared in the past is, I think, two really important components of that. One is we expect that demand to be, you know, above 700 in terms of, you know, that quarterly demand. We certainly have seen that, as he talked about. But also, we think about the large opportunity to be able to have these patients move from RAS inhibition to dual inhibition with something like PhilSparry or the addition of the ERA. Most of these patients still are on only RAS. So there's a tremendous opportunity for growth. We're clearly making that progress. We're seeing, you know, those occur. And I don't want to speak about other companies' performance. They're clearly, you know, helping to be able to increase the shift from RAS inhibition. But as you can see, we've not really seen an impact from their launches.

speaker
Operator

Mori Wake up from Jeffries. Your line is open.

speaker
Peter

Hi, congrats on the quarter and thanks for taking my question. You mentioned that your increased SG&A for third quarter includes additional investment in preparation for potential FSGS launch. Can you talk more about how you're prepping for the launch and how we should think about SG&A expectations going forward?

speaker
Dr. Eric Hubei
President and Chief Executive Officer

Sure. Peter, why don't you take the the question with regard to how your team is preparing for the approval, and Chris, you can talk about SG&A.

speaker
Peter Hirma
Chief Commercial Officer

Yeah, happy to do that, Laurie. First of all, I think it's good to realize that this is basically the same prescriber base in FSTS as what we have seen for IgA nephrology. Basically, the only nephrology segment that we haven't called upon is the pediatric nephrology. But overall, there's a high level of overlap. So we build upon strengths and high brand familiarity. We will have an incremental increase in our commercial footprint to really continue that momentum in IAGA nephropathy while also enabling the early uptake that we are envisioning for PhilzPari. So, we are building upon strengths, and like I said, we have that incremental increase of our commercial footprint.

speaker
Chris Klein
Chief Financial Officer

And Maury, as you can take from Peter's comments with bringing on some additional sales team members and some other support services here, we do expect to see an incremental increase in SG&A. We started to onboard a number of those people this quarter, but really you'll see more of that effect in 4Q and going forward. And then around the time of launch, you would also anticipate that we'll have an increase in investment level as we're really making sure that we're providing the right resources to have a very strong start out of the gate early next year. So incremental increases as we go, but we are building from a very strong base, and we're going to be able to leverage a lot of synergies from Peter's team that's performing quite well right now.

speaker
Peter

Got it. Okay, thanks for doing that. Thanks, Maury.

speaker
Operator

Jason Zemanski from Bank of America. Your line is open.

speaker
Jason Zemanski

Good afternoon. Congrats on the great progress and thanks for taking our question. I wanted to revisit the efforts to now completely remove the REMS. I guess first, given the acceleration in patient starts here and therefore overall exposure to filspari, have your timelines changed at all? And then I guess any other updates on this front now that the original REMS modification has occurred? Thanks.

speaker
Dr. Eric Hubei
President and Chief Executive Officer

Thanks, Jason. Bill, why don't you take that question?

speaker
Dr. Bill Rote
Chief Research Officer

Sure. And we're excited about the REMS modification that was granted in August. And I think we've seen the tail ends that that provides and the positive feedback from physicians and patients. Our strategy has always been for ultimate removal of the REMS. And with our prior interactions with the agency, we've approached it with a two-step process with seeing the frequency change first and then removal second. As we've noted in the past, the FDA has been anchored on our PMR study, which requires exposure across about 3,000 patients for two years. So our process really hasn't changed. Consistent with our approach, we'll continue to engage with the agency and align with them on our next steps.

speaker
Operator

Alex Thompson from Stifel. Your line is open.

speaker
Alex Thompson

Hey, great. Thanks for taking our question. Maybe a follow-up on the commentary on some off-label FSGSUs. I wonder if you could comment as to whether those patients are, you know, coming in at about 2x the IGAM dose or if they're still early in their treatment course and maybe not titrate up fully yet. Thanks.

speaker
Dr. Eric Hubei
President and Chief Executive Officer

Alex, thanks for the question. So, we do have limited insight into some of that information, and I would not want to generalize around the dosing at this point. I think what's important is that, you know, upon an approval, we would make sure that physicians are appropriately educated on the label, on the target dose, and of course, as we have with IGAN, we've got strong patient services support for the patients and their offices to ensure that they're at the appropriate dose.

speaker
Operator

Joe Pantkinis from HC Wainwright, your line is open.

speaker
Joe Pantkinis

Hi, thanks, and good afternoon. So, first, I want to talk more about the expenses that you mentioned earlier, but to the totality of the expenses going forward. I won't ask you to project profitability timing, but I guess can you directionally speak to, you know, especially R&D going forward as, you know, you're going to bringing PEG back into the clinic and how we should sort of view that offset by PhilSparry revenues? And then secondly, I'm just curious with regard to Rinalis and Chugai, any change in timelines for development of Sparcentan in Japan, South Korea, and Taiwan?

speaker
Dr. Eric Hubei
President and Chief Executive Officer

Joe, thanks for the questions. I'll quickly address the last one and then turn it over to Chris to answer the questions on expenses. No change in timelines. We've been incredibly impressed with the speed and quality of work from Rinalis, and we have a high regard for two-guy pharmaceuticals. We would expect that they would be, you know, just as focused when they initiate the FSGS and Alport syndrome programs. We can't speak for them, but what I can say is what we've seen thus far has been very impressive. Chris?

speaker
Chris Klein
Chief Financial Officer

And Joe, on the R&D front for operating expenses, we're in the midst of the budgeting process now, so I'll be able to come back with a little bit more clarity on that post-4Q. But you are right that we do expect to have additional investments for pectin adenases that clinical operation really ramps up once we restart. And we're looking at investment there to, you know, have that be the fastest enrollment and timeline to top line data while maintaining quality that we can. And for sparse centen, there are, as you might imagine, with Duplex and Protect, we do see a ramp down in activity in that. But there are also other evidence generation efforts that could potentially be helpful. both in IgA nephropathy, but then also in FSGS pending approval here, where we believe we can help generate even more value. And then the last thing I'll highlight with Phil Sparry that's still going to be an investment is going to be the transplant studies that recently kicked off and are in the recruiting phase now. So there are still investments that we need to make on the R&D front. But to your point or question around the context of in revenue, we expect revenue to continue to grow very nicely and be able to support our efforts here.

speaker
Joe Pantkinis

Thank you. Thank you.

speaker
Operator

Ladies and gentlemen, this concludes the question and answer session of today's conference call. I'll hand the call back over to Nivi.

speaker
Nivi Nera
Vice President, Corporate Communications and Investor Relations

Thank you everyone for joining today's call. Have a great rest of your day.

speaker
Operator

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

Disclaimer

This conference call transcript was computer generated and almost certianly contains errors. This transcript is provided for information purposes only.EarningsCall, LLC makes no representation about the accuracy of the aforementioned transcript, and you are cautioned not to place undue reliance on the information provided by the transcript.

-

-