Ron Rocca
Analyst · Canaccord
Thanks, Ryan, and thank you to everyone joining the call today. As always, we appreciate your continued support of Exagen. In the third quarter of 2021, we achieved a record of 1,969 total ordering health care providers and a record of 714 adopters for our flagship AVISE CTD and AVISE lupus test. Our revenue for Q3 was $12.3 million, which included 31,742 AVISE CTD tests delivered. As our sector has experienced, sequential testing volume was impacted by a decline in patient volume due to the Delta variant, patient referrals from primary care specialists and summer seasonality. As a reminder, most patients are referred to specialists, like rheumatologists, from primary care physicians. Once again, we saw a very high retention rate of 99% among adopting health care providers from the prior quarter. We believe this high retention rate and continued increase in the number of ordering health care providers speaks volumes to the value our customers recognize in using AVISE testing to accelerate the historically slow and frustrating process of clinically diagnosing autoimmune disorders. We remain highly engaged and focused on payers to further expand our coverage and in network status. We recently signed an agreement with Inland Empire Health Plan, or IHP, to make AVISE diagnostic testing available as an in-network benefit to their 1.4 million members. IHP is the largest not-for-profit Medicare/Medicaid plan in the country, and their membership reflects a population that is at higher risk of lupus in autoimmune diseases. This win was not only significant for Exagen, but also meaningful for the new patients that now have in-network access to AVISE testing. AVISE tests are now available to approximately 68.9 million in-network lives across the U.S. As our increasing number of ordering health care providers illustrates, our tests provide a much-needed service in rheumatology. We expect our in-network coverage to continue to grow, increasing our footprint and benefiting average selling price. I'm also happy to announce that we have entered into a pilot agreement to supply AVISE MTX to a partnership between CVS and Aetna. The goal of the pilot is to leverage the use of AVISE MTX as a critical personalized medicine tool for rheumatologists to optimize methotrexate therapy for the treatment of rheumatoid arthritis, or RA. Despite the advent of multiple new biologic therapies for RA over the past few decades, methotrexate remains a cornerstone therapy. Patients differ in regards to how they metabolize methotrexate, making the appropriate dose selection difficult. And AVISE MTX helps keep the patients in the necessary therapeutic range. While we own the exclusive rights to the intellectual property powering AVISE MTX, this quarter, we also improved our future financial position by buying out the remaining royalty. I'd like to now switch over to our research and development initiatives. Over the past decade, we have successfully developed and commercialized 10 tests in rheumatology as part of our Own the Hilltop strategy. According to our market research, there remains significant unmet needs in rheumatology for advanced novel clinical tests. Through the use of proceeds raised in Q1 2021, we are focused on investments in R&D, including multiomics to develop and deliver our pipeline products and dramatically expand our total addressable market across multiple indications. We are very proud of our world-class research and development team that had 8 abstracts accepted by the American College of Rheumatology's Premier Annual Conference, which concluded yesterday. We believe these are quality abstracts that will further inform our customers on the utility of our test. I'd like to highlight one of the key abstracts as we believe its future contributions to the organization will be very meaningful. The abstract titled, the incremental clinical utility of a multianalyte assay panel with cell bound complement activation product versus traditional ANA testing strategy for the diagnosis and treatment of SLE, further demonstrates the clinical utility by leveraging an electronic health care record database consisting of approximately 22,000 AVISE tested patients and 22,000 patients tested with traditional antinuclear antibody testing. In the study described in the abstract, AVISE lupus was shown to be significantly more clinically actionable than the traditional antinuclear antibody testing approach. In this paper, patients testing AVISE lupus positive were approximately 5x more likely to be diagnosed with lupus and 2x more likely to start on a lupus medication than patients testing positive with the traditional ANA testing approach. The cohort for this study was more than 100x larger than our prior clinical utility studies and should further strengthen our position with payers as it continues to reinforce the efficacy of our testing portfolio. Our scientific team has also been hard at work on several initiatives. In regards to the launch of our fibromyalgia and thrombosis test, the [BETTER] study, which we announced last quarter is estimated to be fully enrolled by early 2022. We look forward to sharing more details with you in the future. We can tell you that the patient population for fibromyalgia has been historically underserved due to the lack of reliable diagnostic test and consists of approximately 12 million patients, representing a massive opportunity to improve patient outcome and deliver cost benefit savings to the health care system. We are also working to enhance our SLE monitoring test with additional lupus nephritis markers to address the approximately 50% of SLE patients that progress to developing potentially deadly lupus nephritis. Recently, GSK with belimumab and Aurinia with voclosporin received FDA approval for lupus nephritis indication. We feel enhancing our SLE monitoring test will assist the physician in regards to when to move the patient and how to monitor the patient on these expensive therapies. Our clinical lab expansion continues on schedule and is expected to be completed by Q1 2022, and our R&D lab expansion is expected to be completed by Q2 2022. It's important to note that our clinical lab will include molecular and multiomics capabilities, which will further increase our R&D efforts in molecular and multiomics. We continue to grow our scientific team with exceptional talent, including the recent hire of Ming-Chou Lee, Ph.D, who previously worked at ArcherDX. Dr. Lee is our Chief Technology Officer and has extensive history in developing molecular diagnostic test. We are pleased to have Dr. Lee join us as he leads the development of our RA pipeline initiatives. I will now turn over the call to our CFO, Kamal, to discuss our financial results.