Jack A. Khattar
Analyst · TD Cowen
Thank you, Peter. Supernus continues to execute well against its growth plan and had a strong and very active second quarter. In April, we launched ONAPGO, the first and only subcutaneous apomorphine infusion device for the treatment of motor fluctuations in adults with advanced Parkinson's disease. In June, we announced the acquisition of Sage Therapeutics, which closed on July 31. In addition, we generated strong operating results driven by the robust performance of Qelbree and GOCOVRI. The second quarter of 2025 represents a turning point for Supernus and the beginning of a new phase of accelerated growth. We consider the transition from Trokendi XR and Oxtellar XR to be substantially complete as each product represented only 7% of total net sales in the second quarter, while our growth drivers, Qelbree, GOCOVRI and ONAPGO combined represented 73% of our total net sales. Moving forward with the addition of ZURZUVAE, our fourth growth driver, we expect Trokendi XR and Oxtellar XR share of our portfolio to be reduced even further. Starting with our first growth driver, Qelbree, the brand entered its fifth year on the market and had another robust performance with 23% growth in prescriptions as reported by IQVIA and 31% growth in net sales. Qelbree had another quarter expanding its base of prescribers with approximately 36,000 prescribers in the second quarter of 2025, up by 23% compared to the same period last year. After posting 25% growth in IQVIA prescriptions in '24 versus '23, Qelbree continued to show steady strong growth during the first half of 2025 with prescriptions increasing 23% compared to the same period in 2024. Qelbree's 23% growth outpaced both the ADHD market, which grew by 9% and the nonstimulant segment, which grew by 11%. In addition to growth in the pediatric business, Qelbree experienced high growth in the adult business, increasing 29% in the second quarter compared to last year. By the end of June 2025, the adult business had reached 35% of total Qelbree prescriptions compared to approximately 32% for the year 2024. Switching to our second growth driver, GOCOVRI, continued its strong performance on the back of the momentum it had in the first quarter. Prescriptions for the second quarter of 2025 increased by 14% and net sales increased by 16% compared to the same quarter last year. The number of prescribers reached a new high in the quarter to approximately 1,900 prescribers. In the first half of this year, GOCOVRI benefited from the Medicare redesign. And by June 2025, 97% of GOCOVRI Medicare prescriptions had a co-pay that was less than $25 compared to only 77% in 2024. The average GOCOVRI Medicare co-pay declined by 42% and 80% year-over-year for first quarter and second quarter of 2025, respectively. Unlike previous years, patient retention rates held up this year despite the deductible resets. With a more robust patient base this year, we are uniquely positioned to continue growing the brand with new patients rather than having to recapture previous patients that may have discontinued due to the high beginning of the year deductibles. Moving to our third growth driver, ONAPGO. The launch is off to a terrific start, exceeding our expectations. We launched ONAPGO in April, utilizing our existing Parkinson's disease sales force and support network. Through the end of June, we have more than 750 patient enrollment forms submitted by more than 300 prescribers. Finally, regarding ZURZUVAE, our fourth growth driver, we are excited to have completed the acquisition of Sage Therapeutics, which represents a major step for Supernus in accelerating its mid- to long-term revenue growth and cash flow. ZURZUVAE is a unique and well-differentiated product that is early in its launch and that provides further diversification for our revenue base. The product has been successfully launched by Sage and its partner, Biogen, in the U.S. with 2025 second quarter net revenues as reported by Sage reaching $23.2 million, up from $13.8 million as reported by Sage in the first quarter of 2025, representing a 68% increase. We will be focused on integrating the business and working closely with our partners, Biogen and Shionogi to ensure the continued success and growth of ZURZUVAE. Moving on to R&D. We are on track to initiate a follow-on Phase IIb multicenter randomized double-blind placebo-controlled trial with SPN-820 in approximately 200 adults with major depressive disorder by the end of 2025. This study will examine the safety and tolerability of SPN-820 and its efficacy at a dose of 2,400 milligram given intermittently twice per week as an adjunctive treatment to the current baseline antidepressant therapy. Our Phase IIb randomized, double-blind, placebo-controlled study of 817 is ongoing with a targeted enrollment of approximately 258 adult patients with treatment-resistant focal seizures. This trial utilizes 3-milligram and 4- milligram twice daily doses. As we mentioned previously, we completed a pharmacokinetic study of 2 oral formulations of SPN-443 in healthy adults. Both formulations of SPN-443 showed adequate bioavailability and were well tolerated. SPN-443 is our new stimulant-like product candidate for ADHD and other CNS disorders. The company expects to disclose a lead indication for the product candidate by the end of 2025. Finally, despite the completion of the recent acquisition of Sage, corporate development will continue to be a top priority for us as we look for additional strategic opportunities to further strengthen our future growth through additional revenue-generating products or late-stage pipeline product candidates. With that, I will now turn the call over to Tim.