Steve Aselage
Analyst · Leerink Partners. Your line is now open
Thanks, Chris. Good afternoon, everyone and thank you for joining us. The third quarter was a pivotal one for Retrophin. In September we announced positive top line results from our Phase 2 DUET of sparsentan and focal segmental glomerulosclerosis or FSGS. In the study of the overall sparsentan treatment group due to primary efficacy endpoint measuring proteinuria reduction versus an active competitor, irbesartan. The results showed that after an 8 week double-blind period, treatment with sparsentan resulted in a greater than two fold reduction of proteinuria compared to irbesartan. Additionally, the data showed a statistically significant reduction of proteinuria in the combined 400 and 800 milligram dose cohorts. The data also suggests that sparsentan was safe and generally well tolerated. These preliminary finding service proof-of-concept for sparsentan's novel approach to FSGS treatment. More recently, we were very pleased to learn that additional data from DUET has been accepted for presentation in a late breaking oral solution at the ASM Kidney Week later this month. We look forward to making more data from the study available to the nephrology community and giving a broader sense for sparsentan's potential. Additional supportive data from the sparsentan program and research from our academic collaborators will also be presented at the meeting. For example, in an oral session, our collaborators from the Neptune Consortium will present a clinical outcome assessment with proteinuria in FSGS patients. As outlined in the abstract, these data support the use of proteinuria as a surrogate endpoint in FSGS and we look forward to the reception of those findings within the community. We believe their data along with the presentation of other relevant data from the program. We'll help raise awareness of sparsentan's potential in FSGS among the world's foremost nephrology experts in attendance. Following Kidney Week, the next step for the sparsentan program will be a meeting with the FDA to discuss the DUET results that has been scheduled for January. Our clinical and regulatory team submitted and we're preparing for what we believe will be a constructive dialogue to determine the regulatory pathway for sparsentan. Once we receive written feedback from the agencies, we will update everyone on the outcome. Looking ahead to progress with our other advanced pipeline candidate, RE-024. We are excited about getting closer to our second key clinical milestone in 2016 with the initiation of an efficacy trial evaluating RE-024 in patients with pantothenate kinase-associated neurodegeneration or PKAN. Importantly, our regulatory and clinical ops teams are making good headway and remain on-track to initiate the trial before year-end. We look forward to sharing more detail in the design specifics. Last on RE-024, I'm pleased to say that all four patients receiving therapy and physician initiation, initiated protocols outside the U.S. continue to remain stable on RE-024. I'm going to round out to development discussion with our liquid formulation of ursodeoxycholic acid which is being developed for the subset of PBC patients who have difficulty swallowing. We remain on-track to file our NDA in 2017 via the 505(b)(2) regulatory pathway. If approved, we believe liquid urso could represent a $20 million to $30 million opportunity and we look forward to providing more detail on that as we get closer to submission. It was clearly a busy quarter for R&D organization, I'm very pleased with the team’s progress. Moving forward there will be a continued focus on execution as we strive to reach our next milestone and advanced development of our assets as quickly responsible. We look forward to sharing our achievements with all of you over the coming months. I'll now shift over to our commercial performance for the quarter. Net product sales reached $33.3 million, a 21% growth over the same period in 2015. Importantly, we were able to share this growth despite a shifting pair mix which resulted in increased Medicaid rebate exposure, both year-over-year and sequentially. Specifically Thiola continued to add new patients and performed as expected with some seasonality in the quarter, similar to what we saw last year. Looking forward, we expect Thiola will continue to grow for the foreseeable future. We are also pleased the compliance with Thiola remained strong in the 85% range, this is great evidence of the value our total care home and what it delivers for the patients. The hubs continued dedication is ultimately helping ensure that patients receive the optimal therapeutic benefit from Thiola. Turning to the bile acid therapies; Cholbam, and Chenodal, both products experienced meaningful growth compared to last year and had new patients initiate therapy during the quarter. However we experienced some level of patient attrition during the quarter which resulted in the patients basis for both products remaining stable. That said, we are confident that our commercial and educational initiatives will spur further growth moving forward. With Cholbam we're encouraged by the continued update of the Retrophin sponsored Neonatal and Adult Cholestasis Sequencing Panel, the panel represents an important first step for physicians to begin the path to diagnosis for bile acid synthesis and Zellweger Spectrum patients. We continue to expect, i.e., uptake of the panel patient identification will expand. Regarding Chenodal, our CTX prevalent study increased its footprint and now has more than 30 sites active in enrolling patients as we grow this effort and continue our education, we expect to identify more patients who may benefit from Chenodal treatment. And we recently had our first confirmed CTX patient identified in the study. Overall, I'm pleased that we continue to grow topline revenues in the third quarter, remain optimistic that our commercial and education efforts result in solid growth to end this year and follow into next year. Lastly, we remained focused on our business development initiatives to differ by the commercial portfolio and lowering [ph] additional development assets to the pipeline. As many of you know, it is a competitive landscape and we will remain disciplined in our approach. I'm very encouraged that we continue to find interesting opportunities to explore and we anticipate being able to drive significant value with these initiatives over the coming quarters. Let me now turn it over to Laura, to walk through the financials. Laura?