Sarepta Therapeutics (SRPT) Q1 2023 Earnings Call Transcript

Sarepta Therapeutics (SRPT -0.42%)
Q1 2023 Earnings Call
May 02, 2023, 4:30 p.m. ET

Contents:

• Prepared Remarks
• Questions and Answers
• Call Participants

Prepared Remarks:

Operator

Good afternoon and welcome to the Sarepta Therapeutics first-quarter 2023 earnings call. At this time, all participants are in a listening mode. After the speaker's presentation, there will be a question-and-answer session. [Operator instructions] Again, as a reminder, today's program is being recorded.

At this time, I'll turn the call over to Mary Jenkins, associate director, investor relations. Please go ahead.

Mary Jenkins -- Associate Director, Investor Relations

Thank you, Shannon, and thank you all for joining today's call. Earlier this afternoon, we released our financial results for the first-quarter 2023. The press release is available on our website at sarepta.com, and our 10-Q was filed with the Securities and Exchange Commission this afternoon. Joining us on the call today are Doug Ingram, Ian Estepan, Dallan Murray, and Dr.

Louise Rodino-Klapac. After our formal remarks, we'll open the call for Q&A. I'd like to note that during this call, we'll be making a number of forward-looking statements. Please take a moment to review our slide on the webcast which contains our forward-looking statements.

These forward-looking statements involve risks and uncertainties, many of which are beyond Sarepta's control. Actual results could differ from these forward-looking statements and any such risks can materially and adversely affect the business, the results of operations, and trading prices for Sarepta common stock. For a detailed description of applicable risks and uncertainties, we encourage you to review the company's most recent quarterly report on Form 10-K filed with the SEC, as well as the company's other SEC filings. The company does not undertake any obligation to publicly update its forward-looking statements, including any financial projections provided today based on subsequent events or circumstances.

And now I'll turn the call over to our president and CEO, Doug Ingram, who will provide an overview of our recent progress. Doug.

Doug Ingram -- Chief Executive Officer

Thank you, Mary. Good afternoon and thank you for joining Sarepta Therapeutics' first-quarter 2023 financial results conference call. Perhaps you will see this as a break from the past, but I intend to keep my remarks this evening brief. As you know, in a mere 10 days from now, we will be attending and presenting at the FDA advisory panel for SRP-9001, our gene therapy intended for the treatment of Duchenne muscular dystrophy.

We believe that the primary areas of discussion at the advisory committee will be these: whether the totality of evidence supports the conclusion that SRP-9001 dystrophin protein at the levels expressed by this therapy is reasonably likely to predict clinical benefit. The totality of the evidence will include natural history, the preclinical data, biomarker results, and the functional results from our clinical trials. The panel will also address the risk-benefit analysis associated with the administration of SRP-9001 for the treatment of ambulatory patients with DMD in the context of accelerated approval. And finally, an assessment of the ability to bring to conclusion EMBARK, or study 301, the proposed post-marketing confirmatory trials to support the accelerated approval of SRP-9001 in the event that accelerated approval is granted.

The team is well prepared and excited to share with the advisory committee the wealth of compelling evidence supporting the conclusion that SRP-9001 dystrophin protein in the amounts expressed by that therapy is reasonably likely to predict clinical benefit. So, to set expectations for this call, we intend to discuss first-quarter performance, and Dr. Louise Rodino-Klapac will provide a pipeline update. But to respect the process and in light of how soon the meeting will take place, we will not discuss or entertain questions on regulatory matters pertaining to SRP-9001 or the upcoming advisory committee meeting until it's concluded on May 12th.

Moving now to the quarter, I am very pleased to announce another strong quarter of performance. First-quarter total revenue came in at $253.5 million. Net product revenue came in at $231.5 million, that's a 23% increase over the same quarter of the prior year and exceeding analyst consensus. It is this very patient oriented execution that we intend to apply to SRP-9001 if approved.

We continue to progress our important post-marketing commitments for our three approved PMO therapies. We have already completed 11 of our post-marketing commitments. With respect to ESSENCE, which is our two-year blinded placebo-controlled study for Vyondys and Amondys, we were fully enrolled last year, and that trial is proceeding. With respect to MIS51ON, which is our dose-ranging post-marketing commitment for Exondys, part 2 of that study is substantially enrolled and progressing.

As it relates to SRP-9001, in addition to preparing for the May 12th advisory committee and prosecuting the BLA with the May 29th PDUFA date in mind, we are ensuring that we will be prepared to successfully launch 9001 and serve the community if and when approved. By now, we have successfully concluded all FDA inspections that includes three GMP inspections and two GCP inspections. With our partner, Catalent, we are producing material to successfully launch 9001 upon approval, and we are finalizing our launch readiness work. And we are finalizing our plans to commence the studies necessary to expand the 9001 label to the broadest population supported by the science, including our commencement of our non-ambulatory study, ENVISION Study 303, and our multiple studies to explore the removal of neutralizing antibodies to rAAVrh74.

Beyond that, we've been advancing our broader pipeline, and Dr. Rodino-Klapac will provide an update on our pipeline momentarily. Now the coming weeks and months are monumentally important to the patients that we serve. As I have said many times by now, we stand at a bellwether moment with the greatest evidence-based hope yet in history to bring a better life to families today living with and, unfortunately, today, dying from Duchenne muscular dystrophy.

And we are also well aware that this BLA stands as a bellwether test for gene therapy itself and for the ability to effectively lean in and use the tools available to us to translate groundbreaking genetic science to medicine that can extend and improve patients' lives now, not merely at some theoretical point in the future. We feel an enormous obligation to the patients that we serve, and our every decision and action is taken and done with that obligation front of mind. And with that, let me turn the call over to our Head of R&D and Chief Scientific Officer Dr. Louise Rodino-Klapac.

Louise?

Louise Rodino-Klapac -- Executive Vice President, Chief Scientific Officer

Thanks, Doug. Good afternoon. As we look forward to the weeks and months ahead, we remain resolute in our conviction and our values to follow the science and present the objective evidence that supports SRP-9001's ability to change the trajectory of Duchenne muscular dystrophy. Our goal with SRP-9001 is to alter the course of this fatal disease by treating the underlying cause of Duchenne with a one-time gene therapy that delivers functional dystrophin to the muscles.

Sarepta generated the most compelling preclinical biomarker and clinical functional results to date, more than any other gene therapy in development for Duchenne. We've been able to demonstrate based on the strong scientific underpinning of our construct that early SRP-9001 data provided read-through for our positive clinical experience with the therapy. After years of research, we identified an optimal gene cassette able to retain the most critical, protective, and functional elements and fit inside AAV, thereby enabling its delivery. This gene cassette was packaged into our AAV of choice, rAAVrh74, and we chose MHCK7 as our promoter.

The early data showed robust expression across skeletal, diaphragm, and cardiac muscle. And as a result of that expression as well as the dystrophin protein demonstrating functional benefits, we saw clinical benefit of the target dose in patients with Duchenne. I will explain in a bit more detail. Individuals with Duchenne don't have a functioning dystrophin-associated protein complex for that state.

Understanding this, when we inserted a functional dystrophin protein, we saw upregulation of DAPC in animal models. More specifically, we saw an almost one for one upregulation of the DAPC when there was expression of the SRP-9001 dystrophin, confirming the protective properties of the protein. Further, we saw significant reduction in creatine kinase, or CK. CK is an enzyme associated with muscle damage.

The rejection of CK provided further proof that SRP-9001 was reasonably likely to predict clinical benefit. Since 2018 and across multiple studies who does the largest number of Duchenne patients more than any other gene therapy in development for this disease, and the clinical results have surpassed our expectations. In summary, SRP-9001 demonstrated robust expression of dystrophin, far above what literature would suggest is necessary to be protective of the muscle. All of it is properly localized at the muscle membrane, or sarcolemma, where it acts as a shock absorber.

We developed a cell-based potency assay that shows that SRP-9001 is active, functional, and protective at the muscle membrane and as in animal models with robust expression of SRP-9001 with significant reduction of CK. Finally, expression of SRP-9001 in patients leads to upregulation of the DAPC. In addition to all of this compelling evidence, we were able to show functional benefits versus what natural history would predict on NSAA, or the North Star Ambulatory Assessment, which is our primary functional endpoint. We observed benefit across one, two, and four-year time points.

Based on the totality of the data, we believe that SRP-9001 qualifies as a disease-modifying agent as at the levels of dystrophin expressed are reasonably likely to predict clinical benefit in patients with Duchenne. Now moving to limb-girdle muscular dystrophy, or LGMD. We remain committed to advancing our LGMD portfolio across a variety of subtypes. I look forward to providing updates on these important programs in the months ahead.

Currently, we are making excellent progress on Journey, our LGMD natural history study; and in VOYAGENE, our phase 1 study evaluating SRP-9003 for the limb-girdle muscular dystrophy Type 2E in ambulant adult patients and non-ambulant patients within clinical process SRP-9003. Combined with positive expression and functional data shared from our initial study, SRP-9003-101, we believe the data from VOYAGENE will give us insights into a broader patient population. Our next milestones for VOYAGENE include completing enrollment in the second half of the year and beginning our phase 3 study using commercially representative processed materials later in the year. Finally, we are on track to commence a systemic pilot study for SRP-606-004 dual-vector rh74-mediated gene therapy to treat LGMD 2B characterized by the absence of the proteins [Inaudible].

Turning now to the progress we made with our RNA platform. We are pleased to complete enrollment in the first quarter of 2023 for our MOMENTUM study for SRP-5051. And we remain on track to announce data from the study in the back half of 2023. In regard to our post-marketing studies for the PMOs, as mentioned last quarter, we completed enrollment in the ESSENCE trials for post-marketing requirement for [Inaudible] market.

We continue to make good progress with our MIS51ON study, which is on track to be fully enrolled this year. In closing, we're looking forward to the advisory committee meeting on Friday, May 12th, as it will provide us the opportunity to share the science and the data in support of SRP-9001. I'd like to take this opportunity to thank our Sarepta team who have been diligently working these past months. I'll now turn the call over to Dallan for an update on our commercial activities.

Dallan.

Dallan Murray -- Senior Vice President, Chief Commercial Officer

Thank you, Louise, and good afternoon. In the first quarter of 2023, the team executed on our core RNA business and delivered another strong performance across all three of our RNA-based PMO therapies. As Doug mentioned, we delivered $231.5 million in net product revenue in the first quarter, representing well over 20% growth over the first quarter of 2022. Notably, Q1 of 2023 exceeded our expectations and represented the most successful first quarter in the history of our marketed therapies.

In Q1, we have historically seen an impact in the U.S. due to expected insurance changes in the beginning of each year. Due to the extraordinary efforts of the team in navigating those access headwinds, we saw higher-than-expected revenue in the U.S. in the first quarter.

Each year, our team is prepared for these challenges, and I'm very proud of their steadfast commitment and sense of urgency with which they serve [Inaudible] community. They know that every minute matters for each one of the patients we serve. Total ex-U.S. net product revenue in the first quarter was roughly $31 million.

This represented a decrease over the prior quarter, which was expected and fully reflected in our annual guidance forecast. As discussed on last quarter's call, we expect to see continued fluctuations in ex-U.S. order matters for the quarter. Overall, the fundamentals of the business coming out of Q1 are completely in line with what we expected at this point in the year.

And we reiterate our full-year guidance upgraded to 925 million in net product revenue for our PMO therapies. This guidance reflects all of the factors that we navigate and monitor in supporting patients globally. With this increasing global revenue base, we will continue to see fluctuations in the net product revenue recorded in the quarter. Importantly as well in the U.S.

market, we have now hit a mature phase with all three products, and as such, we expect more modest growth and new patient starts in the coming quarters for the PMO business. Turning now to individual net product revenues for the first quarter of 2023 for our three approved RNA-based chemotherapies. Exondys 51 totaled $132.6 million, representing more than 13% growth over Q1 of 2022. Our Vyondys 53 sales were $33 million, growing roughly 18% over the first quarter of 2022.

And our Amondys 45 sales totaled $65.9 million, representing more than 50% growth versus Q1 of 2022. In addition to the strong performance in our core business, the team has been simultaneously preparing and laying the groundwork for the SP-9001 launch. The full team is in place, being rigorously trained as we speak, and I can say with confidence that they are ready to execute if SP-9001 is approved. This launch will represent a historic moment not only for Sarepta but for the Duchenne community and for genetic medicine.

The level of enthusiasm and confidence of the team is at an all-time high, and they are eager for this opportunity to demonstrate what we are capable of and what would be our fourth launch in the Duchenne market. Over the past several months, our field teams and Sarepta leadership have meaningfully engaged with roughly 75 sites of care on strategic and operational site readiness matters. These important interactions are to ensure that the sites are ready to efficiently, safely provide SRP-9001 gene therapy to patients as soon as possible. We've also been working closely with sites to provide education and training as well as ensuring that they have the necessary equipment and resources to deliver the therapy to patients.

In addition to site readiness, we know from our experience with PMO therapies that access and reimbursement are crucial to successfully delivering SRP-9001 to patients. We are committed to ensuring that our gene therapy for Duchenne is accessible to all patients who need it, and we recognize that meaningfully engaging with payers is a critical part of achieving that goal. We found that the payers are asking important questions pertaining to the SRP-9001 clinical data, potential patient population size, launch timing, and infusion sites. We are encouraged by the positive response we received thus far and are pleased at the progress we have made in engaging with both commercial and Medicaid payers.

If approved, 9001 will bring forth the potentially transformative therapy to patients who have been waiting for far too long. The team has done a tremendous job, preparing for what will be the largest gene therapy launch to date if SRP-9001 is approved. I'd like to take this opportunity to personally thank the whole organization who are not only executing to support the 30% of patients on our [Inaudible] today but have also risen to the occasion so that we can be ready as a team for this paradigm-shifting moment. And now I'll turn the call over to Ian for an update on our financials.

Ian.

Ian Estepan -- Chief Financial Officer

Thanks, Dallan, and hello, all. This afternoon's financial results press release provided details for the first quarter of 2023 on a non-GAAP basis as well as a GAAP basis. Please refer to the press release available on Sarepta's website for a full reconciliation of GAAP to non-GAAP financial results. For the three months ended March 31st, 2023, the company recorded total revenues of $253.5 million, which consist of net product revenues and collaboration revenues, compared to revenues of $210.8 million for the same period of 2022, an increase of $42.7 million.

Net product revenue for the first quarter of 2023 from our PPMO exon skipping franchise was $231.5 million, compared to $188.8 million for the same period of 2022. The increase in net product revenue primarily reflects increasing demand of our products. In each of the quarter ended March 31st, 2023 and 2022, we recognized $22 million of collaboration revenue which relates to our collaboration arrangement with Roche. The reimbursable co-development costs under the Roche agreement totaled $20.3 million for the first quarter of 2023, compared to $17.7 million for the same period of 2022.

On a GAAP basis, we reported a net loss of $516.8 million, or $5.86, and $105 million, or $1.20 per basic and diluted share, for the first quarter of 2023 and 2022, respectively. This change is primarily due to the loss on debt extinguishment of $387.3 million, a noncash expense incurred in the three months ended March 31st, 2023 with no similar activity for the same period of 2022. We reported a non-GAAP net loss of $85.5 million, or $0.97 per basic and diluted share, in the first quarter of 2023, compared to a non-GAAP net loss of $48.6 million, or $0.56 per basic and diluted share, in the first quarter of 2022. In the first quarter of 2023, we recorded approximately $35 million in cost of sales, compared to $31.4 million in the same period of 2022.

The increase in cost of sales is primarily due to an increasing demand for our products as well as right off of certain batches of our products not meeting the quality specifications for the three months ended March 31st, 2023 with no similar activity in the same period of 2022, partially offset by a decrease in the royalty payments during the three months ended March 31st, 2023 due to changes in the BioMarin royalty term. On a GAAP basis, we recorded $245.7 million and $194.3 million in R&D expenses for the first quarter of 2023 and 2022, respectively, a year-over-year increase of $51.4 million. The increase is primarily due to an increase in our manufacturing expenses. On a non-GAAP basis, R&D expenses were $220.7 million for the first quarter of 2023, compared to $173.2 million for the same period of 2022, an increase of $47.5 million.

Now turning to CIGNA,SG&A. On a GAAP basis, we recorded approximately $110.7 million and $71.8 million for expenses for the first quarter of 2023 and 2022, respectively, an increase of $38.9 million. The increase was driven primarily by an increase in professional service expenses to prepare for a potential launch of SRP-9001. On a non-GAAP basis, the SG&A expenses were $83.3 million for the first quarter of 2023, compared to $53.2 million for the same period of 2022, an increase of $30.1 million.

We expect that our R&D and SG&A expense will increase next quarter as we continue to prepare for a potential launch of SRP-9001. On a GAAP basis, we recorded $12.7 million in other income, net, for the first quarter of 2023, compared to $17.3 million in other expense, net, for the same period of 2022. The change is primarily due to an increase in interest income and accretion of investment discount due to the investment mix of our investment portfolio as well as a reduction of interest expense incurred as a result of the repayment of our December 2019 term loan during 2022. In the first quarter, we exchanged a portion of our 2024 notes with an aggregate principal value of $313.5 million and issued approximately 4.5 million shares of our common stock.

We accounted for the exchange of the debt extinguishment recognizing the difference of the fair value of the shares of common stock transferred on the exchange date and the net carrying amount of the extinguished debt as a loss of $387.3 million, inclusive of the $6.9 million of third-party debt conversion costs, just, again, to reiterate this is a noncash expense. We had approximately $1.9 billion in cash, cash equivalents, and investments and long-term restricted cash as of March 31st, 2023. We remain well capitalized to execute on our goals for the year and support our transition to profitability assuming approval of SRP-9001. And with that, I'll turn the call back over for Doug to start the Q&A.

Doug?

Doug Ingram -- Chief Executive Officer

Thank you, Ian. Now before we begin the Q&A, let me reiterate and in light of -- and in respect of the impending FDA advisory committee, we will not be entertaining questions on the regulatory process for the upcoming advisory committee meeting for SRP-9001 tonight. I do look forward to discussing those matters with you once the May 12th advisory committee meeting has concluded. And with that, Shannon, let's open the line for questions.

Questions & Answers:

Operator

Thank you. [Operator instructions] Our first question comes from the line of Colin Bristow with UBS. Your line is now open.

Colin Bristow -- UBS -- Analyst

Hey, good afternoon. And, you know, just congrats on being on the cusp of this approval. So, on your supply at launch, can you talk about the capacity and ability to meet demand? I'm just asking in light of the fact of -- or some of the comments from your partner around a slower-than-expected production ramp at the Maryland site. And then, just sort of within this, in terms of patient logistics, can you talk about your expectations for the initial timelines from a physician prescribing 9001 to a patient receiving the therapy given the need for antibody testing and other potential labeling requirements? Thank you.

Doug Ingram -- Chief Executive Officer

Yeah, thank you very much for that, Colin. So, on the first part of the question, as we've said, our goal -- and we will meet that goal -- is to be able to fully launch and supply the community assuming that we are able to get an approval. Of course, our goal right now is to get an approval at the PDUFA date, which is May 29th. We have seen the comments made by Catalent that we're very clear that those comments and the issues that they were discussing do not play any role in or have any effect on our plans or our production plans in the slightest.

So, we should be in good shape there. With respect to the launch, you know, our goal is to launch this therapy as rapidly as possible. And I think we have proven ourselves over the last few years very capable of doing exactly that. With that said, the 9001 gene therapy has its own particular complications.

You've got it, for instance, in addition to not simply having a starch form for that. You going to do a number of other things including getting a pre-infusion antibody test that's sufficiently close to the infusion, that it's valid. And then, of course, they're not -- they typically -- you have to -- have to work through access to reimbursement and codes and the like. So, from a planning perspective, while we'll be launching this rapidly, one should anticipate really seeing, you know, a quarter or two before we really start seeing a significant ramp.

Operator

Thank you. Our next question comes from the line of Gena Wang with Barclays. Your line is now open.

Gena Wang -- Barclays -- Analyst

Thank you. I also wanted to ask one commercial question. What is your estimate patient numbers for initial indications in the U.S.? And also, regarding the manufacturing capacity, any major expansion you need to do in order to supply patient for the initial indication in the U.S.?

Doug Ingram -- Chief Executive Officer

Let me answer the second part first. The answer's no. There are no major capital expenditures or additional expansion that is required to launch this therapy and serve the community at launch. On the addressable patient population, I can give you the broadest of strokes.

They're somewhere in the 12,000, 10,000 to 15,000 patients in the United States. Our goal -- again, assuming that we are approved at a PDUFA date, the goal is to serve all ambulatory patients. The ambulant patients are about 50%, so it's roughly 50% ambulant, 50% non-ambulant. We will be covering the ambulant population, and then, there will be, of course, patients that would be excluded because they have preexisting neutralizing antibodies.

Based on our most recent data, that's about 13.5% of patients would be currently excluded on the basis of having preexisting antibodies to binding antibodies to rh74. And then, there is a subset of patients who would have some of these earlier mutations in a range -- in a region that may have a risk of an innate immune response. That'll be less than 5% of patients. So, that remainder is the addressable patient population at launch.

Now, with that said, I'm going to go ahead and give you our plans for the future as well because, you know, very soon we're going to be starting a number of studies in an effort to fully build out the addressable patient population to the extent that science allows us to. We're pretty confident about that. So that the biggest opportunity obviously is to get to the nonambulant patients. That is extraordinarily important to us and to them.

Nonambulant patients don't have the luxury of time, so we've got to move as fast as possible. We are starting our study 303 for the nonambulant population very soon. The goal is to have sufficient safety and expression data from that study to seek an update to our label early next year to get nonambulant patients in the label so we can begin to dose them. And we're starting as well two additional studies for two alternative approaches to clear preexisting neutralizing antibodies.

And if we're capable of doing that, then that would also bring back into to frame for the ability to dose patients that are currently excluded because they have -- they have something that reacts and is a preexisting neutralizing antibody. That's an extraordinarily important issue as well. You know, oftentimes, you'll -- when you talk to patients and their families, parents will say that the worst day of their lives was getting the news that their child had Duchenne muscular dystrophy and that the second worst day of their lives was finding out that their kids are one of these, you know, rare kids, about 13% of kids who have tested positive for preexisting neutralizing antibodies. So, we need to move fast to try to solve that issue for them.

Thank you for those questions, Gena.

Operator

Thank you. Our next question comes from the line of Brian Abrahams with RBC Capital Markets. Your line is now open.

Brian Abrahams -- RBC Capital Markets -- Analyst

Hi, good afternoon. Thanks for taking my question. Can you expand on what you've been hearing in your preliminary conversations with payers? Is your sense that they would be open to paying for 9001 under accelerated approval or would prefer to wait for full approval? And should we expect sort of a similar mix as with the exon skippers with regards to the proportion of patients initially receiving access? Thanks.

Doug Ingram -- Chief Executive Officer

I want to say the broadest of strokes and you can follow up on missing anything. First of all, the conversations have gone very well. We've been in dialogue with payers regarding the potential for SRP-9001 for many years now. And I can -- you know, going back as far as mid-2018, Dallan, myself, and others were meeting with payers.

The -- our accident reimbursement team have been meeting with payers significantly. The amount of evidence that we have that supports the conclusion that 9001 is a beneficial therapy for kids and is going to do a lot of good is very, very robust. So, these discussions have gone very well. With that said, let me be very clear, of course, you know, as is the case with rare disease therapies right now, actually, reimbursement is a complicated and challenging thing.

The good news for all of us is that 9001 is going to be launched by Sarepta. And, you know, at the risk of sounding a bit immodest, in my view, there is no team better than this Sarepta team to serve these patients, work intelligently with payers, and gain access for this therapy for these kids as rapidly as possible. And I am quite confident that's going to occur. I'm quite confident payers are going to do the right thing, and certainly I believe that they're going to do the right thing in the context of accelerated approval, which is, from our perspective, the approach that -- that one should be taking with respect to 9001 given the data that we have in front of us.

Dallan Murray -- Senior Vice President, Chief Commercial Officer

Yeah, and I think -- I think Doug's really covered it. There are, as we said in -- in the opening remarks, really constructive, great dialogue going on with the payers. And right now, we're -- you know, we're -- we're -- prior to launch, they're asking great questions about timing and the patient population. And I think, more specifically, Colin, to your question, regardless of when the policies are put in place, the payers are going to look at each patient on a case-by-case basis.

And so, the team, as Doug said, is ready to manage -- ready to manage that right from day one.

Doug Ingram -- Chief Executive Officer

We're experienced and battle-hardened team.

Operator

Thank you. Our next question comes from the line of Judah Frommer with Credit Suisse. Your line is now open.

Judah Frommer -- Credit Suisse -- Analyst

Hi, thanks for taking the question. Another one sort of from the payer angle. Any idea if there could be kind of a difference in RAM for patients that are, you know, I guess, naïve to RNA therapies versus those that are -- that are on the PMOs gaining access? And then, any indications around potential value-based payments, given like you said, this is going to be the biggest gene therapy launch ever? So, from a cost perspective, could there be any, I guess, interesting dynamics to -- to the time of payments? Thank you.

Doug Ingram -- Chief Executive Officer

Yeah, as it relates to the first question, I don't think there's going to be a difference in RAM. I think this is -- for those who are amenable to this therapy, which at launch we are successful, our BLA would be ambulant patients, excluding a very narrow range of mutations who are rh74 negative. I think this therapy is going to be extraordinarily important. And I think that there's going to be an equal ramp, whether you're naïve or not naïve to -- to the PMO.

And in fact, we have dosed patients that have been on the PMO and remained on the PMO post-dose. So, we have good data that supports that. On value-based agreements and the like, I'm not at a place right now where we're going to discuss those issues yet. I will tell you that we have done an enormous amount of work, about which I am extremely impressed and proud to frame the value proposition and the pharmacoeconomic model for one-time therapies like SRP-9001.

And our approach to the payer community pricing value-based agreements and the like will be inside the frame of that value framework itself. And the one thing I will tell you, qualitatively at least, and will at the right time talk quantitatively, is that the value that this therapy will bring to Duchenne patients is going to be significantly greater than the cost of this therapy to the healthcare system, which is what we all should want.

Operator

Thank you. Our next question comes from the line of Salveen Richter with Goldman Sachs. Your line is now open.

Salveen Richter -- Goldman Sachs -- Analyst

Good afternoon. Thanks for taking my question. With regard to manufacturing, can you just provide us with some details of where you stand on inventory as you look to this launch, and then, the breadth of your manufacturing relationships in order to address the supply that's required over at least the first year or second -- or first two years of launch here?

Doug Ingram -- Chief Executive Officer

Sure, so we're building inventory, as we speak, to be ready for launch. So, that's obviously an ongoing activity with Catalent. It's a high priority for us and, fortunately, also a high priority for Catalent, so we're in great shape there. And that's great for launch and we're in great shape there.

If you look down the road longer term, of course, we also have our relationship with Thermo Fisher. We have an entire stand-alone site with Thermo Fisher. One of the decisions we made in connection with our BLA submission was not to try to get two sites approved at the same time. The complexity associated with that would have created a significant risk of delay.

And, you know, I think, as we've said a million times, you know, delay is not something that patients with Duchenne can -- can have. So, what we will do post-launch is work with the division to get the Thermo Fisher site up and running and qualified as well. The good news is at launch, this our -- our site with Catalent and our suites with Catalent is sufficient to -- to launch the therapy and serve the community.

Operator

Thank you. Our next question comes from the line of Gil Blum with Needham and Company. Your line is now open.

Gil Blum -- Needham and Company -- Analyst

Good afternoon, everyone, and thanks for taking our question. Doug, in your earlier comments, you mentioned that the company is planning to start some of the other studies including on nonambulatory patients and the clearing of antibody studies. What about planning a study in younger patients? I'm assuming that, you know, as with all gene therapy, younger is usually better. Thank you.

Doug Ingram -- Chief Executive Officer

Yeah, well, let me -- let me comment on that last piece first. It is extremely important that we get to younger patients as well, I want to be very clear. But I want to be also clear that, from our perspective, there is no place across this journey of Duchenne where the intervention of a therapy, like nine years or one, that can restore functional dystrophin to patients, won't be beneficial. There is no -- there's no child that's beyond value, that's important to remember.

So, if you're 19 years old and you've been in a wheelchair for five years, you are as valuable to us as a very young child. So, that's -- so that's why we're very focused on the nonambulant side, but we are focused on the very young as well. We've already dosed kids that are down to three years old. Louise might want to comment on other plans.

We have that much younger children as well.

Louise Rodino-Klapac -- Executive Vice President, Chief Scientific Officer

Yeah. We've got three-year-olds in our 103 study. And then, we're also planning an additional study along with Roche to dose even younger than the three-year-olds, and that will begin in short term.

Operator

Thank you. Our next question comes from the line of Tazeen Ahmad with Bank of America. Your line is now open.

Tazeen Ahmad -- Bank of America Merrill Lynch -- Analyst

Hi, good afternoon. Thanks for taking my questions. I guess, Ian, I just wanted to clarify a comment that you made regarding write-offs of certain batches of the company's products that weren't meeting quality specs. Which products were they, can you share? And have you resolved that issue? And then, also, maybe just to follow up on comments that Doug made regarding inspections being completed, can you also confirm whether or not FDA has any comments on the inspection? And if they have, have they been resolved? Thanks.

Ian Estepan -- Chief Financial Officer

Sure, I'll take the first one first, that was regarding the PMO. This is just part of our normal manufacturing process. If you look back over several quarters, that's happened. So, you know, this is just something that's part of the normal manufacturing process.

And, you know, there's some batches that don't meet specs and we have to write it off but nothing to be concerned and should be expected to continue to go far.

Doug Ingram -- Chief Executive Officer

And then, as it relates to the second question, all of the inspections are completed, and any of the observations have been entirely satisfied. So, we're in great shape from an inspection perspective.

Operator

Thank you. Our next question comes from the line of Danielle Brill with Raymond James. Your line is now open.

Danielle Brill -- Raymond James -- Analyst

Hi, guys, thanks -- thanks so much. I actually have a couple of questions on EMBARK. Curious what percent of patients have completed that trial, just trying to gauge how back-end load an enrollment was. And then, also, how frequently do you measure NSA? And how are missing data imputed? Thank you.

Doug Ingram -- Chief Executive Officer

I'll take the last part but the first part, of the patients.

Louise Rodino-Klapac -- Executive Vice President, Chief Scientific Officer

Yeah. So, the study was completely enrolled last fall in terms of the -- so we can expect the one-year endpoint to close out this fall with the -- the study report early next year. The NSA -- these are the primary endpoint for the NSA is at one year. But we measure it at intervals prior to that, certainly, prior to when you're at endpoint.

Doug Ingram -- Chief Executive Officer

One thing on the staff plan when we announce the results.

Operator

Thank you. Our next question comes from the line of Mike Ulz with Morgan Stanley. Your line is now open.

Mike Ulz -- Morgan Stanley -- Analyst

Hey, guys, thanks for taking the question. Just another one on the 9001 launch, do you have a sense of how many patients might want to switch from some of your PMO therapies, and how do you plan to manage that? Thanks.

Doug Ingram -- Chief Executive Officer

So, let me say two things. First, we don't anticipate at launch a significant impact on our current PMO revenue from a revenue perspective. In the long run, one might -- one should assume some significant cannibalization. It won't happen early on.

To the extent that a patient wants to switch from PMO to have access to the gene therapy, we will embrace that and be, you know -- I'm excited for that.

Operator

Thank you. Our next question comes from the line of Neena Bitritto-Garg with Citi. Your line is now open.

Neena Bitritto-Garg -- Citi -- Analyst

Hey, guys, thanks for taking my question. I just wanted to go back to some of the questions on the payer conversation so far. Can you just tell us a little bit about whether any of your conversations so far have suggested that payers may wait to actually issue coverage determinations until they see the EMBARK data? And if so, how they may think about, you know, kind of restrictions and the coverage policy post-EMBARK? Thanks.

Doug Ingram -- Chief Executive Officer

We intend to launch this therapy and work with payers to get access to this therapy immediately. I would remind folks that we have three approved therapies today, Exondys, Vyondys, and Amondys. All of them were approved for the accelerated approval pathway. And the team has done, in my opinion, an absolutely brilliant job of working with payers to ensure rapid access for patients who are amenable to those three therapies.

We'll take that same execution focus. We will apply it to 9001. And we anticipate that payers are going to respond well given the robustness of our data and are going to have access immediately.

Operator

Thank you. Our next question comes from the line of Tim Lugo with William Blair. Your line is now open.

Tim Lugo -- William Blair and Company -- Analyst

Yeah, thanks for taking the question. Best of luck, obviously. Can you talk about how you view capital deployment in a post-approval role? You obviously have a lot of studies we've talked about; you have to build the label out yourself, those in limb-girdle. And I believe your pipeline is described as 40-compound deep.

So, that sounds like a lot of R&Ds. And I'd love to hear your thoughts around that, which is probably money extremely well spent but maybe if that also influences your thoughts around pricing of 9001.

Doug Ingram -- Chief Executive Officer

Well, I'm going to say two things. I must turn this to Ian who can comment about capital deployment in more general sense. And let's first -- we are going to significantly focus on research and development and the like, of course. And we will continue to do that deep into the future.

That notwithstanding, we will -- our current plans, assuming that we're approved and our plans come to fruition, would have us being profitable next year. As it relates to the pricing for 9001, the pricing of 9001 will occur in the context of the -- in the pharmacoeconomic models we use to ensure that the value is appropriate for that therapy and that -- as I said before, that the value brought to the patients and their lives from this therapy is much greater than the cost to the healthcare system. But beyond that, Ian, you want to comment on the capital deployment plans?

Ian Estepan -- Chief Financial Officer

Yeah, no, I think you're exactly right, we're obviously going to continue to invest in R&D, but we're also going to be focused on profitability and follow metrics that will -- will guide that and ensure returns for our shareholders. But obviously, as you know, investing in our R&D is going to lead to continued growth. And we're going to be focused on moving programs forward that have high probability of success based on the data which we generate. We also think the market conditions right now lend itself to, you know, being in a position to partner or acquire technologies that we think are scientific breakthroughs as we continue to build out our pipeline.

So, we're going to be very consistent with the approach that we've used previously. It's obviously put us in a position where we're one of the leading emerging biotech companies, and we're not going to stray from that.

Operator

Thank you. Our next question comes from the line of Kristen Kluska with Cantor Fitzgerald. Your line is now open.

Kristen Kluska -- Cantor Fitzgerald -- Analyst

Hi, good afternoon, and best wishes to your team this month. Can you talk about the latest as it relates to looking at some of the ways you're looking to address pretreatments for those with preexisting antibodies to AAV? I saw that you're presenting with Hansa some preclinical data at AACT. And the agenda was literally just released about an hour ago. So can you talk about some of those efforts, please?

Doug Ingram -- Chief Executive Officer

Yeah, so there are two approaches, and if there's more to say beyond this, we can take a look. Broadly, there are two approaches that we're taking right now. One is, of course, with our partner, Hansa, in imlifidase to cleave and therefore remove antibodies that stand in the way of a child getting 9001. And the other is using apheresis to clear antibodies.

So, anything you want to add to that, Louise?

Louise Rodino-Klapac -- Executive Vice President, Chief Scientific Officer

We have strong preclinical data with both approaches. And as Doug mentioned, we're planning to start two clinical studies on both approaches. So, this has been important to us to make sure that we can serve the entire community.

Operator

Thank you. Our next question comes from Hartaj Singh with Oppenheimer and Company. Your line is now open.

Hartaj Singh -- Oppenheimer and Company -- Analyst

Great, thank you. Thanks for the question. I just got a quick question on -- on the VOYAGENE study in LGMD. You know, assuming you get that phase 3 started with commercially representative material by the end of the year, how much insight will the phase 2 and the phase 3 give you into the other LGMDs? I mean, could you move faster? You know, could regulators be amenable to looking at them holistically versus, you know, very separately? And then, how easy will it be to scale the manufacturing for all the others? Thank you for the question.

Doug Ingram -- Chief Executive Officer

You know, when I say broadly, you know -- one's seen public presentations from Dr. Peter Marks, you'll know that his -- his ultimate goal, his long-term goal is to get to a place where you can build therapy upon therapy. And particularly, if you're using the same passage which we are in connection with the LGMDs that you should be learning from each and then being able to greatly shorten the timeline. I think that a form of that will occur with our limb girdles, but we are in the early days of limb girdles, so it won't be fully formed like that, as we're -- you know, we are moving through.

We do get significant value and learning from each of these programs that we apply to the next one. The limb girdles are benefiting enormously from 9001. Remember, most of our limb girdles, the majority at least, use the same promoter as 9001, and they all use the same capsid, rh74. So, there is this virtuous cycle where we ought to be able to start moving faster and faster over time.

It's going to take some time to do that. I would say -- and finally, I'd say on manufacturing, we definitely benefit from prior knowledge as we move forward. But each of these programs is its own program and requires some bespoke elements, including, for instance, much of the assay work. Some of the asset work can be very translatable.

But a lot of this assay work is bespoke from -- from program to program. And so, that does take some time, and it will take some time with respect to some of these girdles.

Operator

Thank you. Our next question comes from the line of Debjit Chattopadhyay with Guggenheim. Your line is now open.

Debjit Chattopadhyay -- Guggenheim Partners -- Analyst

Hey, good afternoon and thanks for taking my question. Doug, I just wanted to clarify one of the comments you made in your prepared remarks. You brought up EMBARK in the context of the outcome. Could you clarify and frame that question again?

Doug Ingram -- Chief Executive Officer

Oh, I think -- oh, yes, one of the -- the issues that we just need to -- to discuss at the advisory committee is that -- EMBARK, which is our proposed confirmatory trial and obviously needs to complete and complete on time. And so, one of the, obviously, reasonable questions one would pose is, you know, are you confident that if we give you an approval now and on an accelerated basis that EMBARK will, in fact, complete, that there won't be something about the approval of this therapy that would somehow influence the ability to successfully complete EMBARK. As you know, EMBARK actually was fully enrolled as of last year -- September of last year. So, I think relative to other accelerated approval therapies, we are in a particularly advantageous, brilliant position with respect to the completion of our confirmatory trial.

Operator

Thank you. Our next question comes from the line of Joseph Schwartz with SVB Securities. Your line is now open.

Joseph Schwartz -- SVB Securities -- Analyst

Hi, everyone. Thanks very much. Since we're so close to the panel, I was wondering if you have seen the FDA's briefing documents at this point and if you can give us your gestalt about their tone so that we can be more prepared for what to expect.

Doug Ingram -- Chief Executive Officer

As I said, we are 10 days away and counting from the advisory committee meeting. I want to be very clear about this. What we're all doing together right now is extraordinarily serious. It's important to us and it's important to our investors, but it is vastly more serious and important to the patients living with Duchenne muscular dystrophy.

This is literally a potential life-or-death issue for them. So, in regard to that, we are going to be mission-driven, and what that means to us is we're going to stay very focused on prosecuting our BLA, preparing for our adcom. We're not going to discuss the outcome or the briefing books or the regulatory process right now. We're going to do a -- we're going to get ready for and, in my humble opinion, we're going to do a brilliant job.

So, I'm putting a lot of pressure on you, Louise. We're going to do a brilliant job of presenting what I believe to be the wealth of evidence that supports the conclusion that 9001 and the amounts made by this therapy is reasonably likely to predict clinical benefit. So, in light of that and with all respect and apologies for not answering the question, I'm not going to answer questions about the regulatory process through the advisory -- advisory committee until after May 12th. And then, we're going to all come together, and I'm going to be thrilled to talk about all of these issues with you.

Operator

Thank you. Our next question comes from the line of Zhi Shu with Berenberg. Your line is now open.

Shu Zhiqiang -- Berenberg Capital Markets -- Analyst

Good afternoon. Thanks for taking my questions. Maybe going back to the manufacturing ramp. Doug, can you set some expectations on how many patients do you plan to treat for 9001? And secondly, on 9003 limb girdle program, obviously, you commented the phase 3 will start in the second half of the year.

Is there any possibility for accelerated approval pathway for this program as well? Thanks very much.

Doug Ingram -- Chief Executive Officer

So, answering the second question first. Ultimately, we -- we will propose a form of accelerated approval for 9003. This is an ultra, ultra-rare disease. We are -- the 9003 makes non-native protein, the absence of which is the sole and exclusive cause of the demise and ultimately the death of patients that suffer from 9003.

So, certainly, if we see great results in the confirmatory trial in the phase 3 that we're starting, we are going to propose an accelerated approval pathway. As to the first question, I'm not going to provide numbers on -- numbers of patients other than to say our goal is to treat every patient that's amenable to this therapy as quickly as reasonably possible. And so, we're preparing ourselves to have a robust launch.

Operator

Thank you. Our next question comes from the line of Gavin Clark-Gartner with Evercore ISI. Your line is now open.

Gavin Clark-Gartner -- Evercore ISI -- Analyst

Hey, thanks for fitting me in. Just to follow up on the LGMD2E question, what's your base case assumption for the phase 3 primary endpoint and trial design? When will you align with the FDA on this?

Doug Ingram -- Chief Executive Officer

So, the short answer is we're going to start that study before the end of this year. We will align with the agency on that along the way. We've got work to do there. Obviously, we've been prioritizing 9001 right now.

The functional endpoint would likely be a form of NSAA, if I'm not mistaken, it's been adapted for limb-girdle. But we'll obviously also be looking at expression and safety with respect to 9003.

Operator

Thank you. Our next question comes from the line of Ritu Baral with TD Cowen. Your line is now open.

Unknown speaker

Hi, guys. This is [Inaudible] on for Ritu today. Can you confirm the timing of EMBARK top-line data? Have there be any changes to that? And then, any updates to your long-term revenue guidance of $4 billion in 2025? How will you be revising this if 9001 is approved this month?

Doug Ingram -- Chief Executive Officer

Our -- our forecast assume approval this month. So, the answer with the first question was --

Louise Rodino-Klapac -- Executive Vice President, Chief Scientific Officer

As far as the readout.

Doug Ingram -- Chief Executive Officer

There's been no change in the EMBARK readout. The EMBARK was fully enrolled as of September of last year. It's going swimmingly. It's obviously blinded.

So, it's being executed swimmingly and we anticipate top line really at the end of this year, early next year.

Operator

Thank you. Our next question comes from the line of Brian Skorney with Baird. Your line is open.

Brian Skorney -- Robert W. Baird and Company -- Analyst

Hey, good afternoon. Thanks for taking my question. I guess kind of jumping off on some of the questions around the ability to successfully conclude EMBARK that you mentioned, can you just talk to us about study conduct? And is there any risk that an accelerated approval could -- could put study conduct at risk? You know, I think you've said before that most U.S. patients have actually had their last visit.

So, could you just kind of review what you would say to someone questioning whether or not you were going to be able to successfully maintain study conduct on EMBARK once you have commercially available 9001 under AA?

Doug Ingram -- Chief Executive Officer

There's no risk. Zero. The study was enrolled -- fully enrolled September of last year. All of the kids in part 1 of the study have received their doses.

The kids on crossover are being dosed even as we speak. Any kid that has yet to be dosed will be dosed in the next few months, maximum. So, the march is going very well. We'll read out on time regardless of whether we receive accelerated approval.

There's no -- there's no reasonable risk to that study.

Operator

Thank you. Our next question comes from the line of Anupam Rama with J.P. Morgan. Your line is now open.

Anupam Rama -- JPMorgan Chase and Company -- Analyst

Hey, guys, thanks so much for taking a question. On SRP-9003, could you see any portions of the VOYAGENE data this year may be starting ahead of the commercial material phase 3? I think the PR only committed to, like, enrollment completion but not data itself potentially, but just wondering if we could see something this year.

Doug Ingram -- Chief Executive Officer

Yeah, I'm sorry -- I'm sorry for jumping in there, Anupam. We -- it's not clear whether we'd have data this year, so we'll -- we'll update you later in the year on that.

Operator

Thank you. I would now like to hand the conference back over to Doug Ingram for closing remarks.

Doug Ingram -- Chief Executive Officer

Well, thank you, all, very much for joining us this evening. And thank you for your questions and thank you for accommodating, you know, my request that we not talk about the regulatory process or the advisory committee as much as you want to ask questions about that and as much as I want to answer questions about that if I'm going to be honest and direct with you. I look forward to -- obviously, we all look forward to May 12. That advisory committee meeting is an unbelievably important moment for patients living with Duchenne.

I'm extraordinarily confident in the ability of this team to present the data well and to frame it brilliantly, as I said before. And then I look forward to coming back together thereafter and discussing where we are and the path forward. So, thank you, all. Have a lovely evening.

Operator

[Operator signoff]

Duration: 0 minutes

Call participants:

Mary Jenkins -- Associate Director, Investor Relations

Doug Ingram -- Chief Executive Officer

Louise Rodino-Klapac -- Executive Vice President, Chief Scientific Officer

Dallan Murray -- Senior Vice President, Chief Commercial Officer

Ian Estepan -- Chief Financial Officer

Colin Bristow -- UBS -- Analyst

Gena Wang -- Barclays -- Analyst

Brian Abrahams -- RBC Capital Markets -- Analyst

Judah Frommer -- Credit Suisse -- Analyst

Salveen Richter -- Goldman Sachs -- Analyst

Gil Blum -- Needham and Company -- Analyst

Tazeen Ahmad -- Bank of America Merrill Lynch -- Analyst

Danielle Brill -- Raymond James -- Analyst

Mike Ulz -- Morgan Stanley -- Analyst

Neena Bitritto-Garg -- Citi -- Analyst

Tim Lugo -- William Blair and Company -- Analyst

Kristen Kluska -- Cantor Fitzgerald -- Analyst

Hartaj Singh -- Oppenheimer and Company -- Analyst

Debjit Chattopadhyay -- Guggenheim Partners -- Analyst

Joseph Schwartz -- SVB Securities -- Analyst

Shu Zhiqiang -- Berenberg Capital Markets -- Analyst

Gavin Clark-Gartner -- Evercore ISI -- Analyst

Unknown speaker

Brian Skorney -- Robert W. Baird and Company -- Analyst

Anupam Rama -- JPMorgan Chase and Company -- Analyst

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