Good afternoon, and welcome to the Zevra Therapeutics First Quarter 2023 Corporate and Financial Results Conference Call. [Operator Instructions] Please be advised that this -- today's call is being recorded. I would now like to turn the call over to Nichol Ochsner, Zevra Therapeutics' Vice President, Investor Relations and Corporate Communications. Please go ahead, ma'am.

Good afternoon. Thank you for joining us today to review updates related to Zevra's first quarter 2023 clinical, operational progress and financial results. A few housekeeping items before we start. I invite you to view the webcast slides and the press release, both of which were issued this afternoon and can be found in the Investors section of our website. During today's call, we will be making statements -- several forward-looking statements. These forward-looking statements include, but are not limited to, the clinical, regulatory and commercial path for arimoclomol, AZSTARYS; revenue milestones and expected reimbursements from the French EAP program; the planned next steps in our pipeline programs; the timing for enrollment, initiation, completion and reporting of data from our clinical trials; senior leaderships and Board members' transition and refreshment; and other corporate updates. These statements are neither promises nor guarantees and involve risks and uncertainties and other important factors that could cause actual results to differ materially from those discussed here. Important factors that could cause actual results to differ from any forward-looking statements can be found in the Risk Factors section of our quarterly report on Form 10-Q for the 3 months ended March 31, 2023, which is expected to be filed later today with the SEC. Moving on to the agenda for today's call. I am pleased to welcome Zevra's Board Chair and management team members participating in today's call. I'm joined today by our Board Chair, Tamara Favorito; our Chief Development Officer and Co-Founder; Christal Mickle; our Chief Financial Officer, LaDuane Clifton; and our Chief Commercial Officer and Executive Vice President of Business Development, Josh Schafer. I will now turn the call over to Tamara.

Thank you, Nichol, and thank you all for joining us today. Before the team reviews our first quarter 2023 progress, I'd like to share a few thoughts about where we are today and where we're headed. This has been a busy and eventful period for Zevra as Zevra continues to execute on its corporate strategy focused on developing and commercializing novel therapeutics designed to address the unmet needs of people with rare diseases. Importantly, advancing Zevra's pipeline remains the company's top priority. It's the cornerstone for value creation upon which our rare disease strategy has been built. Recently, we completed our 2023 Annual Meeting of Stockholders. And during that process, we received feedback from many of our stockholders seeking change, which culminated in the election of several new Directors to our Board. We welcome them to our team, and we intend to continue supporting the company's rare disease strategy unified in our mission to generate long-term value for our shareholders. This has also led to leadership changes. And I'm pleased to announce today that while we conduct the search for a new CEO, Christal Mickle, our Co-Founder and Chief Development Officer, will be taking on the role of Interim President and CEO effective June 1. With her leadership and the support of the entire executive team, we take from this experience a renewed commitment to bringing desperately needed treatment to the patients we serve, and we look forward to the achievement of our shared goals. To provide more details about the recent changes in April, Zevra's shareholders voted to elect John Bode, Douglas Calder and Corey Watton to Zevra's Board of Directors. Accordingly, Richard Pascoe, Christopher Posner and Dr. David Tierney stepped down from the company's Board. Additionally, Wendy Dixon was appointed to the Board to fill a vacancy. In…

Thank you, Tamara, and good afternoon, everyone. The rebrand of our company as Zevra during the first quarter was the culmination of a series of strategic moves over the past 2 years to refocus the company toward rare disease therapeutics. The acquisition of arimoclomol in 2022 was a key element of the strategic growth of our company as this program complemented our in-house development program, KP1077, for the treatment of rare sleep disorder known as idiopathic hypersomnia. Our long-term strategy has been designed to build upon our expertise in drug development, which is now focused on rare disease, with the goal of commercializing our products in the U.S. using a small best-in-class commercial team. As we prepare for resubmission of the arimoclomol NDA, we are also in the process of building the commercial capabilities that will allow Zevra to bring a much needed therapy to patients with Niemann-Pick disease type C, also known as NPC. We believe our successful execution of this strategy has the potential to create meaningful long-term value for shareholders. So why Zevra? Our new name is Greek for zebra, which is the internationally-recognized symbol of the rare disease community. We honor the many stripes of rare disease that are reflected in our new branding, and we embrace our name as a direct commitment to the rare disease community. To that end, we recently joined the Corporate Council of the National Organization for Rare Disease, also known as NORD. Beyond our name, we have established a rare and unique position for Zevra in the biotech marketplace as a development-stage company with a growing revenue stream that reinforces our already strong financial position. Collectively, we believe that our strategy, our team, our strong financial foundation and our diverse portfolio of multiple clinical programs combine to enable us to…

Thanks, Christal, and good afternoon. During Q1 2023, we saw the prescription trends for AZSTARYS continue as expected, with an estimated 8,669 prescriptions reported as of the week of May 5, 2023. The trend remains encouraging and gives us confidence to reiterate our guidance that we believe we will achieve the first and possibly second net sales milestone under the AZSTARYS license agreement during this year. As you may know, AZSTARYS was approved in March 2021 for the treatment of ADHD in patients aged 6 and older. It is being commercialized in the U.S. by our partner, Corium, Inc., who has put together a great team to make this product available. With substantial insurance coverage throughout the U.S. and the sizable field sales force, we believe the net sales milestones and a growing base of royalty revenue will continue to be a foundational part of our business. Of course, our focus remains on our development pipeline and what future opportunities it can generate, especially with the possibility to leverage our own commercial capability in the future. Now let's turn our attention to the financial results for Q1 2023. We have begun the year with a solid quarter, reporting net revenue of $2.9 million as compared to $2.3 million during Q4 2022. Ongoing reimbursements from the French early access program are the primary driver of revenue supplemented by AZSTARYS royalties. Royalties earned during Q1 2023 were approximately $630,000, representing a nearly 58% increase over the prior quarter. While the royalties provide a steady and growing income stream, milestones are expected to be the bigger driver of value from the AZSTARYS license for the foreseeable future. We reported a Q1 net loss of $11.8 million or $0.34 per basic and diluted share, which was driven by our R&D investments and increased G&A,…

Thanks, LaDuane. I'm excited about what lies ahead as we continue to transform Zevra and work to enhance value creation for our shareholders. We continue our ongoing discussions with regulatory agencies and are preparing to resubmit the arimoclomol NDA as early as the third quarter of this year. For the KP1077 program in rare sleep disorders, we anticipate preliminary interim data from the Phase II trial in idiopathic hypersomnia as early as the third quarter. These data have the potential to support both advancement of KP1077 into a Phase III study in IH, but may also support a Phase III trial in narcolepsy under the recently opened IND. To fuel our growth, we anticipate ongoing revenue from our arimoclomol expanded access program in France to continue at approximately $2 million per quarter, and we have the potential to realize one and possibly a second net sales milestone under the AZSTARYS license agreement, in addition to the growing royalty streams this year. Our capital remains strong with a cash runway that extends into 2026. With that, I will ask the operator to open the call for questions. As a reminder, Zevra's Board Chair and management team members participating on this call today include our Board Chair, Tamara Favorito; our Chief Financial Officer, LaDuane Clifton; and our Chief Commercial Officer and EVP of Business Development, Josh Schafer.

[Operator Instructions] Our first question comes from Louise Chen, Cantor Fitzgerald.

Congratulations on the progress this quarter. So I wanted to ask you a few things. Firstly, on the milestone potentially in 2023, can you give us a sense of the amount and timing that you might -- when you might hit these different milestones, how much they are? And then secondly, on KP1077 for narcolepsy, can you talk about what unmet need that you're addressing here in the market for narcolepsy? And then lastly, just on your data as early as third quarter '23 this year for IH, what would you consider a successful outcome in that interim readout?

Thanks, Louise. I appreciate that. This is LaDuane, and I'll start with the milestone question, and then we'll go to the other two. So at this point, we have not been able to disclose publicly the milestone amounts under the license agreement for AZSTARYS. And so I still can't do that today. But I will tell you that I think we expect that when I talk about earnings this year, I really mean I expect we'll earn the first one. It's going to be between -- it's likely sort of in the Q2 or Q3 time frame is my expectation. And then if we're able to earn the second one, we would have earned it by the end of the year with the cash payment likely coming after the end of the year, so in the beginning of '24. That's the way they're reported, and they're reported and paid a quarter in arrears. So that's the first question. And I guess, Christal, I would turn it to you with regard to the 1077 IH question.

Sure. And I believe your first question was on the -- was it on the interim data or on narcolepsy?

Yes. The first one was on narcolepsy, and what unmet need that you're addressing there. And then, yes, the second one was on the interim data for IH.

So regarding the unmet need, narcolepsy is very similar to idiopathic hypersomnia and the fact that they also have the same issues with brain fog and having that wakefulness, excessive daytime sleepiness as IH. And so we do look to -- there are products that are on the market that are helping to consolidate sleep, but they're really -- there are a few products that are on the market, but they do have some limitations based off of the doses that they can give and don't -- aren't necessarily as effective as we feel like ours could be with our unique profile. So we do feel like there is some unmet need there on narcolepsy as well.

And this is Josh Schafer, Louise, if I can also just add. One of the basket from 1077 is the lack of potential abuse. And with its profile, we think 1077 would be a much safer alternative to some of the current stimulants at the same time as having an improved clinical efficacy as well.

And then going to your other question about the interim data and what we're looking for there, so really, the whole point for the -- there's a couple of things for the Phase II study is we're looking to see if we are powered enough based off of the analyses that we're looking at. And then obviously, safety is also -- that's our primary endpoint here, so continuing to look at that. As far as for the interim, those are the things that we would be looking for as well as we are looking into 2 different dosing regimens and the potential for those and what may -- which one may be more effective with the least amount of side effects as far as if there's any insomnia or things like that, that come with stimulant use. So those are the things that we would be looking for, and those would all help us to begin designing those first stages of the Phase III study as we go into the planning for that.

Our next question comes from Jonathan Aschoff, ROTH MKM.

What kind of efficacy would you need to see with 1077 in Phase II to proceed to a pivotal trial in IH? And maybe it's the same, maybe if not, but what kind of efficacy would you have to see in Phase II to proceed in both a pivotal in IH and in narcolepsy?

So as far as efficacy with this, we haven't -- we are looking at products that are similar. And so while we don't have a particular point that we are looking at, a different point differential, but on the Epworth Sleepiness Scale, I believe that there is other products out there that maybe I think the differentiation was maybe a 3-point difference or something like that. But again, those are other products. We don't have a specific point that we are looking at yet. Again, that's why we are doing the Phase II trial to see -- looking at that as well.

Okay. By the way, just to nitpick, what was the consulting fee? What was the revenue that wasn't AZSTARYS or arimoclomol?

The consulting fees during Q1 were very small. It was around $25,000. So it's a very modest final payment.

Okay. So how do we look at R&D, which kind of popped significantly in the first quarter? What's that going to look like this quarter, third quarter, fourth quarter?

So R&D is kind of tracking up as we have the active Phase II trial in KP1077. And I think that the trend we're on here during Q1 is going to be similar as we go through the year and complete the trial, but then also then begin preparing for the Phase III going into 2024.

Okay. So at the very least, slightly up from Q1. Has another -- same kind of popped in SG&A? Is that your new run rate or new low for the year?

Currently, I expect that we'll be around flat in that area. But as we get into the resubmission process or once that's completed, I should say, and then we look forward into 2024, there could be some uptick in G&A as we think about beginning to prepare more deliberately for the commercial launch of arimoclomol. So we're going to be very thoughtful and stay flat. So just to repeat, the G&A is going to be in a similar place where it is right now for a few more quarters. And then we'll kind of assess how it might change after the resubmission.

Okay. And one thing I kind of would like to know, if you don't mind stepping back and answering this, is typically when managements change this much, there's a change in what's going to happen and how it's going to be done. There really doesn't seem to be much in the way of any change with how you're going forward with Zevra other than a name change. So what's different? Why the management changed if you're really kind of going forward the same way you've been? It just doesn't seem to square with me.

Yes, Tamara, maybe if you're still on the call you'd like to address that?

Yes, I'd like to take that. Thank you, Jonathan, for asking that. And as you may be aware, we just went through a contested proxy fight and 3 new Directors were elected to our Board and our CEO, Rich Pascoe, was not reelected. He was 1 of the 3 Directors that we had put up for reelection. And because he was not reelected to the Board, he chose to resign as CEO as well. And I think what you mentioned is very, very important for Zevra. Nothing is changing in terms of our strategy. And as Christal said in her comments, we have been working on this for 2 years, and we now have a strategy of developing rare disease drugs for the market. That's where we were going, before the annual meeting and that's where we're going to go afterwards. So we're very sorry to lose Rich. We understand what he did, and we will be looking for a new CEO, but we see no change in the company's strategy whatsoever.

Lastly, on the data that Louise was referring to, the interim data, so the Phase II data coming in as early as the third quarter, that's just an interim look to see primarily how powered your trial is?

So yes, that's exactly right. So the interim data is just that, in the middle of the trial to see if there's any adjustments that we need to make, primarily in the powering of the study to see if we need to increase the numbers to fit the effects that -- or to be able to see the effects that are coming out of our molecule. And then -- but again, we can also look at things like the dosing regimen and other things because we do have that open titration portion of it.

Okay. So what again was your intended in initial enrollment? And what could that jump to if you are -- if you see that you are underpowered?

Sure. So our initial enrollment, we're looking to enroll 48. And I don't remember when the exact number was. We do have a percentage above that, and I can go back and look at that. I don't remember exactly, but we do have that planned if it does need to go up.

[Operator Instructions]. This concludes the Q&A portion of today's call. I'd now like to turn the call back over to Christal Mickle for any additional or closing remarks.

Thank you very much. As we conclude today's call, I would like to leave you with a few additional thoughts. As one of the founders of the company, I have devoted a significant part of my career helping to build this company from scratch and to a team that has been able to take not one but multiple products from discovery through development, culminating in regulatory approval where these products are now available to patients, providing for previously unmet needs. And today, our journey continues as we move forward with more opportunities to build upon our legacy of success in drug development. The addition of commercial capabilities is a natural part of Zevra's evolution, and I'm proud to step into the role of Interim President and CEO as of June 1, with the goal of fully supporting our team as we execute on our objective to drive toward many more successes in the future. One of the hallmarks of how our company began was through sincere dialogue with our shareholders and with all of our stakeholders. We remain committed to providing clear communication as one of our guiding principles and completing our work with integrity and excellence. The needs of the patient communities which we serve are at the forefront of what we do every day, and I know our team of scientists and business professionals is fully committed as I am to bring the promise of novel rare disease therapies to those who need them most. We have the tools and the resources needed to fully capitalize on the opportunities which lie ahead and the results to get it done. I'm proud to be on this journey with the team we have built and with you, our shareholders. Thank you very much.

This concludes today's Zevra Therapeutics First Quarter 2023 Earnings Call and Webcast. You may disconnect your line, and have a great wonderful day.