Hello and welcome to the Ardelyx Second Quarter 2023 Conference Call. All participants will be in listen-only mode. [Operator Instructions]. Please note this event is being recorded. I would now like to turn the conference over to Caitlin Lowie. Please go ahead ma'am.

Thank you. Good afternoon, everyone, and welcome to our second quarter financial results call. During this call, we will refer to the press release issued earlier today, which is available on the Investors section of the company's website at ardelyx.com. During this call, we will be making forward-looking statements that are subject to risks and uncertainties. Our actual results may differ materially from those described. We encourage you to review our risk factors in our most recent quarterly report on Form 10-Q that was filed today, which can also be found on our website at ardelyx.com. While we may elect to update these forward-looking statements in the future, we specifically disclaim any obligation to do so even if our views change. Our President and CEO, Mike Raab, will begin today's call with opening remarks and an overview of the company's progress during the second quarter of 2023. Next, Susan Rodriguez, Chief Commercial Officer, will provide an update on the launch of IBSRELA. Justin Renz, Chief Financial and Operations Officer, will conclude today's formal remarks with a review of the company's financial performance during the second quarter ended June 30, 2023 before we open the call to questions. With that, let me pass the call over to Mike.

Good morning everyone, and thank you for joining us on the call. I'm really pleased to be here today and along with Susan and Justin to share with you the progress we've made over the past quarter. At the midway point of 2023, we are excited about the critical milestones we've achieved, the continued execution of our priorities, and the important two quarters ahead of us. IBSRELA is making significant inroads in the IBS-C market as healthcare practitioners and patients recognized the benefits of its novel mechanism profile. Our growth rate accelerated with net sales revenue in the second quarter of $18.3 million reflecting a 61% increase in net sales revenue over Q1. This performance is the result of the incredible efforts of a team that is fully engaged in the field, calling on HCPs, and articulating the unique value proposition that IBS-C offers patients who are in need of a new treatment option. At this stage of our commercialization of IBSRELA, we're excited to provide revenue guidance for the very first time. We currently expect IBSRELA net sales revenue for 2023 to be in the range of $72 million to $77 million. Physician adoption, patient need, and positive treatment experiences, as well as a favorable access are the fundamentals driving our IBSRELA growth and we believe the strength of these forces continues to predict expanded use of IBSRELA. As we've said, physicians are finding IBSRELA to be an important treatment option for their patients with IBS-C. Patients are experiencing positive results and refilling their prescriptions. Access to the IBSRELA is favorable, enabled by our best in-class patient services program, our Ardelyx Assist. We are confident in the future performance of the IBSRELA, and we hope that this guidance will offer better insight into our expectations for this product and…

Thank you, Mike. Fifteen months into the launch of IBSRELA, we are establishing a strong early market position disrupting the IBS-C market by addressing the need for a novel mechanism treatment option. With a strong field force of more than 60 reps having daily interactions with the top writing IBSD HCPs, we continue to focus on driving both breadth and depth of IBSRELA writing across HCPs for their patients who can benefit from a novel treatment approach. Our omnichannel digital tactics further amplify our commercial presence, enabling continuous engagement with existing writers, as well as expanding awareness to cultivate new writers. With new writers continuously being added and existing writers increasing their prescribing, IBSRELA is redefining the treatment landscape. Our Q2 sales performance and revenue growth over Q1 reflects the growing uptake of IBSRELA and the opportunity we believe this drug offers for a meaningful subset of patients head up until the launch of IBSRELA had limited treatment options. This market is highly promotion sensitive, our market presence is strong, and the value proposition of IBSRELA is resonating with HCPs and patients. The May 2023 launch dynamics tracking report published in Q2 by SPHERIC, an independent market research firm provides a view of the market response to IBSRELA based on a monthly launch tracking survey across a sample of GIs. The May 2023 findings reported based on the 76 GIs survey that 91% rated IBSRELA as an advance over existing therapy. Additionally, of the subset of respondents who reported using IBSRELA, 98% reported satisfaction with treatment. The May 2023 SPHERIC survey results also provide a view of the strength of our targeted commercial presence in high IVSC writing HCP offices with 74% of survey GIs reporting seeing an IBSRELA rep of which the majority reported seeing a rep within the…

Thank you, Susan. Our second quarter of 2023 reflects positive momentum on a number of financial metrics. Accelerated sales growth, improvements to our growth to net margin as compared to last quarter. Careful monitoring of cash expenditures and strengthening of our balance sheet in the methodical manner we have taken over the past several quarters. I will walk through those metrics now and then discuss the guides we provided today for this role in net product sales in 2023. In the second quarter of 2023, we have total revenue of $22.3 million compared to $2.5 million in the second quarter of 2022. We have increases to both our net product sales of IBSRELA and our product supply and licensing related revenue. As previously mentioned, we have net product sales of IBSRELA in Q2 2022 of $18.3 million, which is a significant 61% quarter-over-quarter growth from the $11.4 million we reported in the first quarter. As a reminder, in the second quarter of 2022, our first full quarter sales following launch, we reported net product sales of $1.6 million. We also reported $4 million in product supply and licensing related revenues in the second quarter this year, compared to $1 million in the second quarter of 2022. Research and development expenses were $8.3 million in the quarter ended June 30, 2023, which is a decrease of $1.4 million from the $9.7 million for the same quarter last year. Expenses in the prior year were quite higher to [natural manufacturing expenses], as well with costs associated with our appeal at the FDH UI 2021 complete response letter on the NDA's first proposal. We saw our gross-to-net margin improved in the second quarter, when compared to the first quarter. As we expected, as health care plans reset in a new calendar year, our…

Thanks, Justin. Q2 was another quarter where [adults] achieve important milestones, delivered on our priorities, and strengthened our business. We are excited with IBSRELA's performance and are beginning to see upside for this product. The team behind IBSRELA is focused, dedicated, and driven to help the patients that we serve. They have set of standard for the type of success and innovative thinking that can be expected from your adults’ commercial organization. Demand for exposure is high, and we believe we have the potential for a strong launch after approval. We continue to support our partners’ regulatory submissions while engaging in discussions for further international expansion and looking at all the options available to us from a financing perspective. Before closing, I would like to take a moment as I always do to thank the incredible team Ardelyx. Your talent, your passion, and commitment are the driving force behind the performance that we've shared today. I will now open the call to questions. Operator?

Yes, thank you. We will now begin the question-and-answer session. [Operator Instructions] And the first question comes from Yigal Nochomovitz with Citi Group.

Hi, Mike and team. Thank you very much. Could you just spend a little bit more time talking about the assumptions behind the newly introduced guidance range. Obviously, it implies a quarterly growth over -- quarter-over-quarter growth, essentially lower than what you saw 2Q over 1Q for the back after the year. So if you could just delve into that a little bit more and then on the on the legislation with the with the bundling, can you talk about the likelihood that that legislation will come to fruition and keep the world out of the bundle to 2033. Thanks.

Sure. Let me start with the last part first is, I feel like starting to sing school house rock as to how the bill becomes a law. And so that I can't give you any specific percentages on the probabilities. This is such an important first step, what we're focused on is making sure that the team is ready to launch in the fourth quarter pending approval. And we'll take it step by step. I think this is such a strong message of what Congress has previously done three other times that it gives me some hope and optimism, but I can't give you specific numbers. As it relates to the guidance, as I said, and Justin, though, this is our first time giving guidance, we're going to take a very measured approach. I think as we look at how we performed since launch, there's different percentages growth quarter-to-quarter. So we're not going to just straight line things or take these in a stepwise fashion as we have with this. And I think this is a measured and appropriate first step for guidance. Justin, anything to add to that?

No Mike, that's excellent. Again, we're really encouraged by Q2's quarter-to-quarter growth. And [indiscernible] has done an amazing job and will keep you apprised of our progress.

Thanks. And then just one, one quick question on the, on the symphony. So the patient assistance program. Can you say what percent of the script volume coming out of Symphony was driven by the PAP for which you don't book revenue?

Yes, I mean, it's, it's going to vary depending upon all the scripts. Right. So there's not a specific percentage that we can say is going to be true last quarter to the next one. But it's just that it's a Pat program that shows up in Symphony.

Okay. Thanks, Mike.

Sure.

Thank you. And the next question comes from Dennis Ding with Jeffries.

Hi, good morning. Congratulations on the progress. And thanks for taking our questions. Two, if I may, for exposure, what are your expectations into the October PDUFA, including how the label could eventually shake out and how that would impact your positioning in the market. And then, , number two, ever since the resubmission and acceptance, how have engagement with the FDA been and what more needs to happen in the next two months [into particular]. Thank you.

Sure. So I think as we shared when we said that we had refiled the NDA and as well with Dr. Stein's letter and frankly all the discussions that occurred at the adcom. We believe the likelihood is that this is going to be an indication that says something along the lines when binders are insufficient or intolerable, which is the majority of patients as everyone knows. So I think that secures a very powerful second line spot where all the binder, it's what almost 80% of patients are above range in any six month period of time. So feel strong and feel good about if that's indication ultimately ends up being. There's not really been any substantive communication. The agency didn't anticipate any. Traditionally, you begin your negotiations on your package insert month or so prior to your PDUFA date. And if you recall in our last go around, we negotiated the majority of the package insert before what occurred to ultimately end up in the CRL. So I don't know how much re-litigation is going to have to be required for the PI since that's already been done. But that's what we would anticipate.

Thank you.

Thanks Dennis.

Thank you. And the next question comes from Laura Chico with Wedbush.

Hey, good morning guys thanks for taking the question. I just want to circle back on the guidance real quick here. What I guess maybe if you could explain Mike, what gave this, why was now a good time to start providing guidance? Was there anything that's changed kind of in the trajectory or anything there? But yes, rationale around why now is a good time for guidance?

Well, we said that we're doing about 15 months to 18 months from lunch as we learn more about the data and got more comfortable and I think as Justin said in his opening remarks that we're gaining confidence in those numbers being representative of where we're going. So, and actually were generated and it's 15 months 16 months first launch and it just seems like the right time. Justin, anything to add?

Okay.

No, I think that's fine.

Laura?

Thanks guys, okay. And then, if I could follow-up on one just to with respective to the legislation. I don’t think we've seen taxed on the bill yet, and I know you mentioned we've already had the can kicked on the road three times previously. I guess just on the off chance the bill does not progress, I'm just wondering if you could kind of walk through mechanistically what would actually happen if it were included in the bundle. I guess, I'm trying to work through the scenario of potential impact during a transition. Yes, thanks if there is any color that you could provide.

Sure. And to see the tax to the bill you can go to Buddy Carter's website, congressman from Georgia and the bill is there. Well, as it relates to the bundle, it's would end up being January 1st, '25, as it goes in annual to middle year on a two year to half a period. Like other drugs has gone and so maybe like since on possible. They collect the data from that two year period and then the following year day increased our base rate based upon the calculation on those data bit collected to increase the base rate to cover it the cost associated with anything going into the bundle. I think what makes these all along they're so unique is that they are not given during a provision of dialysis, if you recall or as we talk that in fact you're not allowed to eat when you're on dialysis. And certainly our package and certain others say yes to take your drugs while you have food, right, whether it’s a meal or a snack in case of binders and for us it's one small pill before at breakfast and whether it's dinner or lunch your next largest meal. So, it makes it a vexing issue for providers to actually accomplish what they need to and they're not going to be giving these drugs during the provision of the dialysis services.

That's very helpful, Mike. Last question I have, and back in the queue. In terms of ATM utilization, I think there 11 million generated this quarter. Could you just comment on kind of appetite for further use of the ATM. Thanks, very much?

Sure. Justin?

Yes, thank you. So, we sold approximately 3 million shares in the second quarter to both useful platform, $11.6 million as we discussed in our prepared remarks or any during -- 5.8 capital raising ideas. They are open minded too. Not like these portions as well as we continuing for our options about both business development that and other non-accurate solutions. So, I mean it's certainly a tool in our tool box but we're going to be patient in the park or as we try to-date and previous quarters that we demonstrated in the last quarter.

Thanks very much, guys.

Thank you. And the next question comes from Matt Kaplan with Ladenburg Thalmann.

Hi, good morning guys and congrats on the to our results for the quarter, nice results. Just want to dive in a little more to your preparation for the XPHOZAH launch. And going into the October 17th that is the key. Just a little bit more color in terms of how you're thinking about a buildout of that sales team and will it look like the it's rather team or in terms of size and give us a little bit more color as you prep for.

Sure, Susan?

Yes, hi Matt. We are as we mentioned in our narrative, we have mobilized to prepare for the launch of XPHOZAH, we have the capability to ramp up on the marketing, distribution, payer engagement patient services. Your question on the salesforce, we are fielding a dedicated nephrology salesforce and on this market as need. So, as we have noted around the IBS-C market, has a very concentrated number of doctors with around 8000 HCPs accounting for the majority of hyperphosphatemia script. So, to really reach that target group, we're fielding a group of about 60 which we believe really will develop a very establish a strong salesforce presence for XPHOZAH with a dedicated nephrology salesforce across the country. So, it really is a salesforce comparable inside to our salesforce. However it is dedicated to the nephrology co-point and we are experiencing a really high level of interest to where interviewing you know that do those process we see with very seasoned sales people with coming in with nephrology experience and establish relationship. They were quite enthusiastic about launching this dedicated team. And we will be prepared to be able to watch it as quickly as possible upon the approval of XPHOZAH in the fourth quarter.

And Matt, the thing I would add to that is if you recall before the CRL, we have an extensive disease awareness campaign and in an organization it was foot on the ground doing that. And what's been remarkable is to see the continuing awareness that has built even since then and the anticipation for it. So, and we're enthusiastic about what we're going to be launching into.

Okay, that's helpful. And then a follow-on to that is I guess why should the XPHOZAH launch look like, the IBSRELA launch or why should it look different given I guess given what you just said Mike in terms of the level of awareness, et cetera. What should our expectations be in and kind of the trajectory ever want.

And so, I think what we'll do is hold on that. We will spend some more time more dedicated time with everyone as we are closer to the PDUFA date telling you more about our expectations and how that's going to look. Yes, I think we're still gathering perspectives on it. We think it's going to be made a positive response to launch but quantifying that at this stage is probably premature.

Okay thanks, fair enough. And last question in terms of the PDUFA launch. I think in your prepared remarks, Justin, you mentioned incremental increase in SG&A, can you just go over that again and how would you think about that.

Yes, thank you Matt. So, we're we like to add we anticipate additional incremental $20 million the combined SG&A spend will go up from additional quite supply spend spending in this quarter and going on. That will be the incremental cost. Of course, from these not giving you the market I'm generating rather that would be offset by the PDUFA and is having a -- we've gotten into an incremental $20 million quarter respective of.

Okay, thanks. Thanks, again.

Thanks, Matt.

Right, thank you. [Operator Instructions] And the next question comes from Peyton Bohnsack with TD Cowen.

Hi, guys. Thanks for taking our questions. I guess a little more on the PDUFA that you mentioned. So, if I'm assuming you've to apply for this. It's my assumption that you guys would apply for this if it wasn’t put in the bundle however -- unless in there maybe.

Yes. I mean, to whatever the process is to get those data collected, we would certainly participate in that.

All right, got you. And then, I guess it's kind of like a follow-up. How have kind of discussion been going for other areas like to sort of Europe. Have you begun to look forward at those and if you have any timelines, that'd be great.

Yes, so we had ongoing discussions in all the partnered territories, whether it's IBS-C and Japan, and Europe, rest of world. Those conversations continue. Some there is better trajectory. And others, no specific timeline that I can give you in terms of when anything like that would be finalized.

Yes. And I guess, just like one final one for me. Seeing how you guys are pretty deep into the IBSRELA launch now and the vote is probably going to get approved and then launched. Could you maybe talk about your long-term PND or an internal R&D strategy, would you guys restart your earlier stage pipeline so we could be looking to like something?

Yes, I mean it's a great question at least as we've said. There is a couple of programs that are sort of laying shallow at this point towards these metabolic acidosis, the hyperkalemia program to speak of two that will sufficient capital, obviously looking at those and restarting those would be a prudent thing to do. I think what we're also demonstrating Peyton was what we've done with IBSRELA and confidence we'll demonstrate with XPHOZAH, is an extraordinarily powerful commercial organization. And that should be the partner of choice for new and upcoming drugs in IBS and new and upcoming drugs in dialysis and renal. So, we'll continue looking across multiple ways of strengthening our pipeline and as we get to a place where we have strong enough balance sheet to do that.

Great, thank you very much. I appreciate all the color.

Thank you, Peyton.

Thank you. And this concludes our question-and-answer session. I'd like to return the conference back over to President and CEO Mike Raab for any closing comments.

Thank you everyone for joining us this morning. I look forward to providing you with further updates in the weeks and months ahead. We have a number of milestones that I look forward to sharing including an approval of XPHOZAH in October and continued growth of IBSRELA. With that, we can close the call. Thank you operator.

Thank you. The conference have concluded. Thank you for attending today's presentation, may all disconnect.