Neurocrine Biosciences and Soleno Therapeutics announced that Neurocrine has entered into a definitive agreement to acquire Soleno for $53.00 per share in cash, representing a total transaction equity value of $2.9 billion.
The acquisition of Soleno and the addition of VYKAT™ XR (diazoxide choline), a first-in-class therapy to treat hyperphagia, the defining feature of Prader-Willi syndrome (PWS), will expand Neurocrine's portfolio of innovative medicines and strengthen its leadership position in endocrinology and rare disease. Since its FDA approval and successful U.S. launch in the second quarter of 2025, VYKAT XR has demonstrated strong early adoption, generating $190 million in 2025 revenue, including $92 million for Soleno in the fourth quarter alone. When supported by Neurocrine's medical and commercial infrastructure, VYKAT XR is expected to continue to improve care for patients with PWS while delivering long-term value to Neurocrine shareholders following the close of the transaction.
"This transaction will advance Neurocrine's mission to deliver life-changing treatments while accelerating our revenue growth and portfolio diversification strategy. We share the Soleno team's deep commitment to the Prader-Willi syndrome community and look forward to leveraging our experience and capabilities to expand VYKAT XR's reach to benefit more patients, while further strengthening Neurocrine's leadership in delivering transformative medicines," said Kyle W. Gano, Ph.D., Chief Executive Officer, Neurocrine Biosciences. "We congratulate Soleno on developing and launching VYKAT XR, showing strong results in a complex disease and enabling broad utilization with a clear label, and we look forward to working together to continue to help patients in need."
"Neurocrine is the right strategic partner to expand the reach of VYKAT XR in the Prader-Willi syndrome community given their experience in endocrinology and rare disease and their proven ability to execute successful commercial launches. We are excited to accelerate VYKAT XR's impact for PWS patients following completion of the transaction by leveraging Neurocrine's strong commercial capabilities," said Anish Bhatnagar, M.D., Chairman and Chief Executive Officer of Soleno.
PWS is a rare genetic neurodevelopmental disorder caused by an abnormality in gene expression on chromosome 15 that affects about 10,000 patients in the United States. The disease is characterized by neurological, behavioral, and metabolic dysfunction. Its defining feature is hyperphagia, a chronic, life-threatening condition marked by a persistent hunger that drives compulsive, food-seeking behavior. Individuals with PWS also commonly experience cognitive impairment and a range of psychiatric and behavioral challenges. Together, these symptoms can severely diminish quality of life for individuals with PWS and their families, with hyperphagia driving significant morbidity and mortality.
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