Harmony Biosciences FY Conference Summary Company Overview - **Company**: Harmony Biosciences (NasdaqGM:HRMY) - **Key Product**: WAKIX, a treatment for narcolepsy Industry Insights - **Market Size**: Approximately 80,000 diagnosed narcolepsy patients, with an additional 80,000 to 90,000 undiagnosed patients, indicating significant growth potential in the narcolepsy treatment market [10][10] - **Polypharmacy**: The narcolepsy market is characterized by high polypharmacy, with patients often on multiple therapies [8][8] Key Product Performance - **WAKIX Growth**: - Achieved a record increase of 500 patients in Q3, the highest since launch, following a steady growth pattern of adding 100 to 400 patients per quarter over the last six years [5][5] - Currently, 8,100 patients are on WAKIX therapy, indicating substantial room for growth in a market of 80,000 diagnosed patients [10][10] Competitive Landscape - **Oxybate Generics**: Anticipation of multiple Xyrem generics entering the market next year, which may lower costs for oxybate therapy but is expected to have limited impact on WAKIX due to its unique non-scheduled status [22][22] - **Orexin Agonists**: - Takeda's orexin agonist is expected to launch in late 2026, but the impact on WAKIX is anticipated to be small initially, with a gradual effect over time [28][28] - WAKIX is perceived as well-tolerated and effective, maintaining a strong position among healthcare providers [27][27] Future Developments - **Orexin Agonist Program**: Harmony has initiated a phase one PK/PD program for its own orexin agonist, with plans to accelerate to phase two and three based on initial data [30][30] - **Next-Gen Pitolisant**: - A gastro-resistant formulation of Pitolisant (Pitolisant GR) is on track for NDA submission in early 2027, aiming to improve patient adherence and outcomes [41][41] - A high-dose formulation (Pitolisant HD) is also in development, with phase three trials for narcolepsy and idiopathic hypersomnia set to begin [44][44] Clinical Insights - **Fatigue Management**: Fatigue, a common issue in narcolepsy, will be a secondary outcome in clinical trials for both narcolepsy and idiopathic hypersomnia, aiming to differentiate the product further [45][45] - **Clemizole for Pediatric Epilepsies**: Harmony is in phase three trials for clemizole hydrochloride in Dravet and Lennox-Gastaut syndromes, with top-line data expected in late 2026 [50][50] Conclusion - Harmony Biosciences is positioned for growth in the narcolepsy market with WAKIX, while also exploring new opportunities with orexin agonists and next-generation formulations of Pitolisant. The company is actively addressing unmet medical needs in both narcolepsy and pediatric epilepsy markets.