Susan Rodriguez
Analyst · Ladenburg Thalmann. Please go ahead with your question
Thank you, Mike. I'll be reviewing several topics today. I will review our strong Q4 and full year performance for IBSRELA, traction we are gaining, and position we are establishing that will enable continued market share gain. I will review key achievements of our launch that have established favorable foundational uptake drivers, predicted a strong growth momentum for IBSRELA in 2023. I will then take some time to cover the opportunity for XPHOZAH, our preparations for launch in the second half of this year, and go-to-market strategy. So, let's begin with IBSRELA. Our Q4 revenue for IBSRELA came in at $8.7 million, representing a revenue increase of 78% versus our Q3 sales of $4.9 million. This brings IBSRELA total revenue for 2022 from our launch in March through the end of the year to $1.56 million with strong growth momentum going into 2023. Our early launch results demonstrate that IBSRELA is having an impact with its novel mechanism of action and strong clinical data and adoption is growing. Our launch tracking research demonstrates that over two-thirds of surveyed GIs hospitalized report IBSRELA is unique compared to other IBS-C prescription products. And for the majority, its differentiated mechanism of action is the most compelling reason for use. The Spherix December 2022 report also note that surveyed GIs consider approximately 25% of their patients with IBS-C to be good candidates for treatment. These insights align with the consistent growth we are seeing in prescription, reflected both in new and refill prescriptions as well as new and repeat writers. Our salesforce presence is clearly making an impact. Our omnichannel initiatives are clearly making an impact and our market access strategy is clearly working. Payers have evaluated IBSRELA and set policies that grant access to IBSRELA by a prior authorization, typically if patients have been treated with an existing option. The patients under the care of these high IBS-C writing doctors have commonly been treated with one, if not more, of the limited options available, meet these criteria, and therefore, prior authorization approvals are being secured. Patients are increasingly being identified as candidates for IBSRELA, accessing the drug, and responding favorably to the treatment. These key launch indicators suggest that we are in a strong position to continue to advance our market share across what is a favorable market landscape where there are no new branded agent in view across the patent life for IBSRELA. Transitioning now to our commercial planning for XPHOZAH, I will briefly review the background market dynamics across hyperphosphatemia and the market opportunity for XPHOZAH. Published data demonstrates that over a six-month period, 77% of patients are unable to consistently maintain established guideline-directed target levels despite active treatment with phosphate binders the single class of therapy available to treat this highly prevalent condition in patients with CKD on dialysis. It is clear that hyperphosphatemia is in great need of a next-line alternative. With the approval and launch of XPHOZAH, patients inadequately controlled with phosphate binders will have a new alternative. XPHOZAH, a first-in-class phosphate absorption inhibitor represents a unique approach to treating hyperphosphatemia by blocking phosphorus absorption via the primary pathway of absorption. It provides clinically meaningful phosphorus reduction and enables a dosing resident of one Tic Tac-sized pill twice a day that is novel to this patient population. In addition, research in December of 2022, by Spherix indicated a high level of interest among nephrologists, a high level of intent to adopt and a large subset of patients surveyed nephrologists would consider candidates for XPHOZAH. The product proposition and market opportunity for XPHOZAH has many parallels to Ardelyx. A first-in-class therapy entering an established prescription market with a single mechanism treatment option currently that's not meeting patient needs. And those patients are being treated by a concentrated group of healthcare providers that are actively looking for novel approaches to bring to their patients. To launch XPHOZAH, we will focus on the 8,000 nephrology healthcare providers that account for approximately 80% of all hyperphosphatemia prescription, with a dedicated nephrology salesforce and a product positioning centered on the important role of blocking mechanism drugs can play in helping many patients who are currently unable to achieve guideline established target phosphate levels. Our established commercial capabilities have enabled quickly mobilized launch planning activities and we are poised to rapidly ramp up a dedicated nephrology salesforce once we get closer to a launch date. Our commercial leadership team has peaked the nephrology experience, enabling ongoing opinion leader and key stakeholder engagement across the nephrology landscape. If XPHOZAH is approved and launched sometime in the second half of 2023, it will launch into a traditional prescription payer model comprised of Medicare Part D, commercial, Medicaid, and VA payers. Our access strategy centers on the unique position XPHOZAH will hold as a novel mechanism therapy for patients inadequately controlled by phosphate binders and high level of prescriber demand driven by their motivation adopt a new treatment option. For this large subset of patients in need, XPHOZAH offers the only new and differentiated option. As is the case for all innovative branded therapies introduced into established therapeutic areas where low-cost options are available, we expect payers will require a prior authorization for access to XPHOZAH. We do not expect this to limit patient access. The majority of CKD patients on dialysis with hyperphosphatemia are actively treated with phosphate binder therapy and in many cases, inadequately controlled. Therefore, meeting prior authorization criteria will be achievable. In addition, Ardelyx will provide support through a comprehensive patient services program designed to optimize access and affordability. This is a strategy that is working for IBSRELA and will work for XPHOZAH. While we are not ready to announce the launch price for XPHOZAH, I can characterize for you the current pricing landscape in the hyperphosphatemia space. While the majority of dialysis patients requiring phosphate-lowering treatment are generically available phosphate binder, approximately 20% are treated with branded binder launched within the last 10 years with list price points ranging from $1,500 per month to $2,300 per month. This current pricing landscape provides opportunity for XPHOZAH to launch at a price point aligned with its clinical value proposition. Across the biotech landscape, Ardelyx is in the unique class of companies actively commercializing its own products. We are advancing our market position at IBSRELA and preparing for the potential launch of XPHOZAH in the second half of 2023. The state of our business reflects our vision being realized these two first-in-class novel mechanism therapies discovered in the developed by Ardelyx are poised for commercial success with favorable product, market, and competitive dynamics and are powered by our disruptive commercial strategy for innovative therapy products. Our Q4 results for IBSRELA and strong growth momentum going into 2023 combined with the commercial promise of XPHOZAH, eliminate the potential for Ardelyx to build strong market position for our portfolio of assets as a successful commercial biotech company. I will now turn it over to Justin to walk through our fourth quarter and year end 2022 financials. Justin?