Greeting and welcome to the Catalyst Pharmaceuticals CPRX First Quarter 2022 Financial Results Conference Call. At this time, all participants are in a listen-only mode. A brief question-and-answer session will follow the formal presentation. As a reminder, this conference is being recorded. It is now my pleasure to introduce your host Ali Grande, CFO of Catalyst Pharmaceuticals. Please go ahead ma’am.

Good morning, everyone, and thank you for joining our conference call to discuss Catalyst's first quarter 2022 financial results and corporate highlights. Leading the call today is Patrick McEnany, Chairman and Chief Executive Officer. We are also joined by Dr. Steve Miller, our Chief Operating Officer and Chief Scientific Officer; and Jeffrey Del Carmen, our Chief Commercial Officer. Further for the Q&A session, we'll have Dr. Gary Ingenito, our Chief Medical and Regulatory Officer and Brian Elsbernd, our Chief Legal and Compliance Officer. Before we begin, I would like to remind you that in our presentation this morning and in the Q&A session, we will make statements about expected future results, which may be forward-looking statements for purposes of the Federal Securities Laws. These statements relate to our current expectations, estimates, and projections, and are not guarantees of future performance. They involve risks, uncertainties, and assumptions that are difficult to predict and may prove not to be accurate, especially in light of the effects of COVID-19. Actual results may vary from the expectations containing our forward-looking statements. These forward-looking statements should be considered only in conjunction with the detailed information contained in our SEC filings, including the risk factors described in our 2021 annual report on Form 10-K. At this time, I’ll turn the call over to Pat.

Thanks, Ali. Good morning, everyone and thank you for joining us today for Catalyst first quarter 2022 financial results and update call. As you can see, we had a remarkable first quarter. As we delivered record net product revenue of $43 million, a 42.5% increase, compared to Q1 of 2021 and ended the quarter with $198 million in cash and short-term investments. Net income before income taxes for Q1 of 2022 was $17.5 million, a 76.7% increase, compared to $9.9 million for Q1 of 2021. We reported GAAP net income of $13.2 million for Q1 of 2022 or $0.13 per basic share and $0.12 per diluted share. During Q1 of this year, we repurchased 400,000 shares of our common stock from the open market, at an average price of $6.38. Since we started the program in March of last year, we have repurchased a total of 2.6 million shares at an average price of $5.61. We continue to make purchases at times when we feel it is prudent and beneficial to our shareholders. As a result of the outstanding performance for the quarter, we are reiterating our full-year 2022 total revenue guidance of $195 million to $205 million, representing a 38% to 45% increase in total revenues, compared to 2021. We also anticipate our cash OpEx that is, research and development and SG&A expenses to be between $65 million and $70 million for the full-year. I'd like to begin today's discussion with a brief overview of our commercial performance and execution for the quarter. Our robust growth was attributed in part to the positive outcome from the 11th Circuit Decision, reaffirming our orphan drug exclusivity for Firdapse for the treatment of Lambert-Eaton myasthenic syndrome or LEMS. The removal of Ruzurgi from the market in February of this year, following our…

Thanks, Pat, and good morning, everyone. The commercial team delivered a very strong quarter, building upon the momentum from 2021. Q1 Firdapse, net sales were $43 million, which represents 13% growth quarter-over-quarter and 42% growth quarter versus the same quarter last year. I'm proud of the flawless execution demonstrated by the entire commercial organization. Commercially, we had two primary objectives in Q1. First and foremost to transition the majority Ruzurgi patients to Firdapse with therapy. Second, to demonstrate significant organic growth through naive new patient enrollments. By the end of March, over 90% of adult LEMS patients, we estimated to have been on Ruzurgi have been successfully transitioned to Firdapse with the remaining balance expected the transition by the end of the second quarter. The full impact of the transition of the former Ruzurgi patients will be realized in the second quarter. Payer approval rates were greater than 95% for adult LEMS patients transitioning from Ruzurgi. I am particularly proud of the Catalyst patient services team, which is doing a tremendous job supporting the needs of adult LEMS patients, caregivers and healthcare professionals during this process. As for organic growth, naive new reimburse patients were 18% greater versus Q1 2021, and 5% greater versus Q4 2021. In fact, March 2022 naive new enrollments matched the highest monthly total since launch. Additionally, operational excellence maintain favorable access of greater than 90% across all payers, government or private commercial insurers continued high compliance of greater than 90% and contributed to a discontinuation rate of approximately 5%. We expect considerable organic growth each quarter in 2022, primarily driven by new patient enrollments of already diagnosed LEMS patients, not yet on Firdapse in the significant number of patients that are unfortunately misdiagnosed or undiagnosed. April, naive new patient enrollments remained strong of discontinuation rates…

Thanks for the commercial update, Jeff. I'll now provide an update on our operational initiatives. Our objectives for 2022 are straightforward, which are to continue to increase the number of adult LEMS patients being treated with Firdapse, expand the commercial potential Firdapse and identify synergistic opportunities in the rare disease space. Our medical affairs team continues to make significant progress in engaging with healthcare providers to provide valuable direct education and content. We also promote and support accredited CME programs designed to increase awareness of LEMS within the prescriber community. The largest of these CME programs educate physicians through an online program on how to recognize formerly diagnosed and treat LEMS and it is currently available to all U.S. physicians through Medscape. To-date, over 6,000 healthcare providers have viewed the Medscape course and also April 21st of this year, 1,772 licensed healthcare providers have obtained CME credit. In addition to this Medscape program, on May 4th, Catalyst supported a LEMS session at a live tumor board of oncologists that was hosted by physician education resources. This recorded session is the basis for another program that will provide -- we provided to physicians free of charge for one year as an enduring CME course intended primarily for oncologists and promoted to all oncologists in the physician education resources network and in several neurology and oncology publications. We recently announced the three new patents covering additional patient, amifampridine metabolizer types have been issued by the Patent and Trademark Office, bringing the total number of issued patents protecting Firdapse franchise to five. All three patents are listed in the FDA's Orange Book, bringing the total number of patents not listed to five. This important milestone now provides broad comprehensive protection for the Firdapse franchise regardless of the NAT2 metabolizer type. We will continue…

Thanks, Steve. It goes without saying that we are very pleased with our financial results for the first quarter of 2022. Our total net revenue for Q1 ‘22 principally from Firdapse product revenue was $43.1 million, a 42.7% increase, when compared to total revenues of $30.2 million for Q1, ‘21. Net income before income taxes for Q1 ‘22 was $17.5 million, a 76.7% increase over net income before income taxes for Q1 ‘21 of $9.9 million. We reported GAAP first quarter 2022 net income of $13.2 million or $0.13 per basic share and $0.12 per diluted share, an increase of 72.8% year-over-year, compared to the first quarter 2021 GAAP net income of $7.7 million or $0.07 per basic and diluted share. As a reminder, in the first quarter of the calendar year like many companies in our industry were impacted by the reset of the patient deductibles. Further in the first quarter of 2022, we recorded an increase of $2.1 million in expense relating to our commitment to make charitable donations to 501(c)(3) foundation that support LEMS patient programs. While GAAP requires such contributions to be expensed in the first quarter of 2022, when we committed to make this contributions they will support LEMS patient programs for the full 2023 years. Our effective tax rate for Q1 ’22 on an annualized basis was 24.2%, compared to 22.5% for Q1 ‘21. For 2022, we expect that we will continue to benefit from the use of our deferred tax assets primarily relating to Florida State net operating losses and the orphan drug credit, although those are subject to certain limitations resulting in a more normalized tax rate. Non-GAAP net income for the first quarter of 2022 was $19.4 million or $0.19 per basic share and $0.18 per diluted share, which excludes from…

Thanks, Ali. In closing our prepared remarks, I'd like to add that Catalyst is well positioned to deliver sustained performance with an unwavering commitment to the LEMS community and execution of our strategic priorities. We anticipate this to be a transformative year for the company with increased momentum to diversify and invest in innovative opportunities for rare diseases. We approach these objectives from a position of strength and look forward to enhancing our growth potential and long-term value for all of our stakeholders. Finally, I'd like to thank all of our valued employees for their continued dedication and commitment to positively impacting patients' lives. Operator, we'd now like to open the call for questions.

Thank you very much, sir. Ladies and gentlemen, we will now be conducting a question-and-answer session. The first question comes from Joe Catanzaro of Piper Sandler.

Hey, everybody. Thanks so much for taking my questions here. Maybe the first one from me, so with 90% of the former Ruzurgi patients have been transitioned to Firdapse. I'm wondering, if you could say whether you're a 125 patient estimate is proven accurate or is it still a little bit of a moving target? And I think you mentioned something about payer decisions for these patients, but what percent of patients were transitioned to free drug? And when would you expect those patients to become paid reimburse scripts? Thanks and I have a follow-up.

Good morning, Joe. Thanks for the question. I'll turn that over to Jeff Del Carmen.

Sure. So Joe, to answer your question about the patients being approved greater than 95% of the patients that transition from Ruzurgi, the adult LEMS patients were approved by the payer. And so they only were on bridge for a short time and we expect the full impact of these patients to truly be felt in Q2.

I'll add to that, Jeff, that. Yeah, we're pretty comfortable Joe with that number of 125. We think that's pretty accurate within 5% either way. So we will stand by that for the moment.

Okay, great. And I think, if I heard correctly, you mentioned that March was the highest month for naive new patient enrollment since the launch. Just can you speak to whether you've continued to observe those favorable trends into April? And as the organic growth, you're expecting this year driven entirely by improving diagnosis rates or are there other levers that you're looking to pull?

Yes, Joe. And we did continue to see strong enrollment numbers. Right, April almost matched March, so very strong numbers and a lot of things contributing to that. But another thing is, the country is opening up again patients are able to dose with these physicians. We have a strong pipeline of patients that we suspect as being diagnosis LEMS and so the vast majority of them are over 500 of these patients that are leads and a lot of times these patients are just waiting to see their physicians. So we suspect strong continued organic growth, but it's going to come from these new enrollments, as where our great organic growth is in 2022.

Okay, great. And maybe one just last one, an obligatory one on business development, I'm wondering what -- where you are in the process and some of those diligence that you're doing? I think Pat, you mentioned you're active on a couple of potential deals, but maybe you could just give a little bit more commentary on that? Thanks.

Sure. Yes, our criteria has changed a little bit, Joe and that we believe that we're more interested today in commercial opportunities, perhaps drugs that have been approved by the FDA that haven't been launched yet or very early in their launch. We think that we can add great value, so those opportunities with our commercial team, and our experience in launching rare disease drugs. And so it's hard to be specific, we are fairly deep into due diligence on several opportunities. And I think that's probably as far as I can go and describing where we are in the process.

Okay, got it. That's helpful. Thanks for taking my questions.

Thank you. Thanks, Joe.

The next question comes from Charles Duncan of Cantor Fitzgerald.

Yes, good morning, Pat and team, congratulations on a good quarter, commercially. I had a few questions on that side of the business, but then also a couple of others. Just kind of to continue and to some of the past questions, I guess when you think about 2Q and some of the trends that you see going into it. What do you think is going to be the primary contributor in terms of revenue? Would it be the impact of the Ruzurgi switches or would it be organic growth in 2Q, if you had to project?

Thanks, Charles for the question. I'll let Jeff take that question.

Sure. So Charles two-fold really and you mentioned them. We do expect the full impact of the Ruzurgi transition, those patients that transition from Ruzurgi, I should say. To be felt in Q2, so that's going to be a huge contributor to the increase. But also the organic growth that we're seeing from new patient enrollments is very strong as well. So those new enrollments that we saw in March, those -- the revenue that the impact of those patients will be felt until the second quarter as well. And then we're also seeing a strong -- we saw a strong April and we're seeing a strong start to May too. So I think it's going to be two-fold, well, both those things will be contributing strongly to the revenue in Q2.

And then when you consider the prescribers, so going beyond the patients, when you consider past prescribers of Ruzurgi, are you getting feedback from them that would contribute to, I think you mentioned about 500 possible patients that you've identified. Are you getting feedback from prescribers that would suggest that they call it pool of patients is expanding as a result of -- in part as a result of the Ruzurgi switches?

Yes, I do think that, that's an accurate statement. In essence, you're eliminating a distraction or another product that they can prescribe for LEMS. So these physicians -- we do see some potential there from these physicians. Those 500 patients are from either cynthany leads like this -- lead that we're seeing from claims data or field force that's out there with -- so it's field intelligence where they are. But we do think that we will have some tailwinds, because of these prescribers now focusing on Firdapse for LEMS only.

Last question on the switches, I imagine it's a little too early to really clean many takeaways. But in your discussions with patients and who have done this switch, have you gotten any compare and contrast relative to the services that were provided by Jacobus and Ruzurgi in the past relative to your service and not only the drug -- the responsiveness to the drug, but also the broader services of providing access to support?

Yes. And I'll focus on the services that we provide. And I can tell you, Charles, I would not -- I don't think there is a better team out there. We have a tremendous field force, including our regional account managers, our salesforce, our patient services team that with a rare disease experience. We apply significant resources out there, because it is our responsibility to make sure that these LEMS patients are taking care of that they have all the resources out there. And they didn't have that, if they were on another drug. And now that they're part of Catalyst Pathways, they now have access to all of these services and resources. And then in some cases, it's not just product related, it's all a go to lemsaware.com, I encourage everybody to go out there and look at the resources provided there. So we do the right thing for the LEMS community and I think the patients had to come over have told us that and have experienced that. Very proud of what the team has done.

Last question for Pat or Steve, perhaps regarding the Biz Dev activities. You kind of alluded to this in the previous questioner's question. But Steve, you mentioned substantial progress to expand the portfolio and Pat mentioned engaged in several diligence projects. And I guess I’m wondering, if you could provide some additional color on the progress? Or would you anticipate being able to consummate some type of portfolio expansion effort by the end of this year?

Yes, Charles. We don't want to be specific about particular opportunities, other than to say, as I mentioned earlier, we are in fairly deep due diligence on a couple of projects that it looked very promising. And so that -- I think that’s about all the color that we can provide at this point. But we are looking at, we have shifted away from looking at later stage -- later development stage opportunity to really approved our commercial opportunities.

Is the current market environment helped in terms of valuations?

Yes. I think so, I mean, it's been a difficult 12 months in biotech land.

Yes.

You just look at the indexes that are down 50% or more from a year ago and the window for financing looks like it’s not wide open, as it was a year ago. So I think the backdrop is certainly making it more interesting and frankly to the point where, we're being -- we've had a few companies actually approach us which is kind of interesting. And I think it speaks to the environment, a company that may have to go and do another financing and looking at their stock trading at a 52-week low and knowing that they're probably going to have to discounted 15% to 20%, a number of those emerging biotech companies are looking at what their strategic options might be other than go into the market for a follow-on offering. So I would say that the environment is certainly better today than it was a year ago for a buyer.

Also likely speaks to your operational progress and performance. So thanks for taking all my questions.

Thank you, Charles.

The next question comes from Joon Lee of Truist Securities.

Good morning, Joon.

Good morning. This is Les on for Joon. Thank you for taking my questions. First, I believe in your prepared remarks you have identified about 30 pediatric LEMS patients. How many of those are currently on Firdapse? And then secondarily, what will be the approval of the supplementary package essentially grant you? And I have a follow-up.

Yes, the number of pediatric patients we believe is really actually less than 20. We have a number without being specific, we have a number of those pediatric patients that we currently provide the drug to our expanded access basis at no cost. So we have -- as I mentioned in our prepared remarks, we have filed a supplement with the FDA. We're hoping to get the label expansion approved, whereby pediatric patients, who all those very small number of patients will all have access to an FDA approved therapy without being prescribed off label or through an expanded access program.

Got it, thank you for that clarity. And then second, in the past you've mentioned around 22% of new enrollments have been from tumor LEMS patients. Can you provide the latest figure if possible and or perhaps how that number has trended? And then also what resources have you applied to target the tumor LEMS patient population? Thank you.

Sure. Les. I’ll let Jeff answer that?

Sure. So Les, we are still tracking around the low '20s as far as percent of new patient enrollments that are also tumors -- that are tumor LEMS patients. We expect the education that we're putting out there to gain traction this year or next year to help increase that percentage. What we're currently doing, we're providing significant educational content that it's focused on oncologists, so thoracic oncologists or any oncologists that treat small cell lung cancer patients. And that education, those educational resources they should say are offered a variety of platforms. So to help find some of these physicians that you treat these patients. So but we're very confident in this strategy and the resources that we're putting out there, which will help identify these patients, properly diagnose these patients with LEMS and then become effectively treated with Firdapse. So we expect that growth later this year as well as next year.

Les, I'd also like to reiterate something that was said in my prepared statements about our new CME program that is made available through physician education resources to oncologists.

Very helpful, thank you for that.

Les, is there another question?

Yes. The next question is from Scott Henry from ROTH Capital.

Thank you. Good morning and really strong results. Nice job there.

Good morning, Scott.

Couple of questions. First, here we talked about -- a lot about the organic growth. Where would you perhaps you want to put a range on that? But what rate do you think organic growth in terms of volume approximates right now?

Scott from the day that we launched in early 2019, a year-to-year we've seen about a 15% to 20% growth rate organically. And that's through the last couple of years being in under pandemic conditions. So I think that we've done a great job in growing organically and as physician practices continue to open and diagnose patients get them a definitive diagnosis. We think that the high end of that range could be our growth factor going forward. So Jeff anything to add to that?

Fully confident in the 15% to 20% you mentioned, Pat. And like you said, I think the biggest impact is the backlog and patient visits that we're waiting to alleviate here and we should -- we expect to see that in this year and beyond, which will help these patients that are currently diagnosed not yet on therapy, become effectively treated by these physicians with Firdapse.

Okay, great. Thanks for that color. And then shifting over to the income statement. I think you said $65 million to $70 million of operating expenses, I'm assuming that is excluding stock comp. If that is in fact the case, would you expect Q1 to sort of be representative of the rest of the year? I know there were some front-end loaded expenses, but if that range excludes stock comp that's probably what would get you there? Just want to see if they should expect any trends within the year or if Q1's representative?

Yes. Scott. Non-cash comp is something of course we have every quarter. We have expenses or charges and those again are not cash. So those are excluded from our cash OpEx and that OpEx is defined as research and development and SG&A. We do have some seasonal, what I'll call, seasonal expenses in Q1 that most of our peers have, as patients are getting reauthorized and having to meet new deductibles. We -- our gross to net is obviously affected in Q1. Also, we have a sizable expense were 501(c)(3) charitable foundation contributions and our courses, our sales ramp-up, we have higher contributions and those are estimates based on -- at the beginning of the year, based on what we expect to contribute over the course of the year. And -- but we -- unfortunately, we general accounting practices require us to take that full charge in Q1. And that is rather than amortized over four quarters, like you would expect that full contribution for the year is charged in Q1. So that to a certain degree really skews certainly G&A expenses for Q1.

Okay. That's really helpful. Thank you, Pat. And then I assume R&D should probably stay at these low levels till you acquire something, is that fair?

Yes. That's a good assumption.

Okay. And then final question I guess for Ali, with regards to the royalty structure, I recall reading in the K about 7% to BioMarin and other perhaps 7% sub royalties. You mentioned that it goes up after $100 million per year, could you just remind me of what the terms of that were?

So the royalties will go up once we hit a $100 million in sales as defined by the contract. So that's why we expect royalties to increase as we progress in the year.

Okay. And how much is that step-up after -- I assume that's a reset every year, but approximately how much does it go up on the sales over $100 million?

3%. It will go up an additional 3%.

Okay, perfect. All right, thank you for that clarification and thank you for taking the questions.

Thank you, Scott. Just one thing to add that you should be aware of, and I think we've talked about it previously. Now that most of our NOL has been used up. I think that a going forward tax rate of about close to 25% between federal and state and local taxes that we have to pay would be good for modeling purposes.

Thank you very much, sir. Ladies and gentlemen, we have reached the end of the question-and-answer session. I'd like to hand the floor over back to Mr. Patrick McEnany for closing remarks.

Thanks, everyone for joining our call. We look forward to our next corporate update. Have a great day. Thank you.

Thank you. This concludes today's teleconference. You may now disconnect your lines. Thank you for your participation.