Soleno Therapeutics(US:SLNO) Globenewswire·2025-11-13 17:17Core Insights - Soleno Therapeutics, Inc. experienced a significant drop in share price, falling $18.78 (-28%) following disappointing news regarding its drug VYKAT™ XR, which is intended to treat hyperphagia associated with Prader-Willi syndrome [1] Company Performance - The company had previously assured investors of a successful launch of VYKAT™ XR after receiving FDA approval, claiming it "exceeded expectations" [3] - However, during the Q3 2025 earnings call, Soleno disclosed disruptions in the launch trajectory, citing a lower number of start forms and increased discontinuations due to non-serious adverse events [3] Market Reaction - Following the negative news, Hagens Berman, a national shareholders rights firm, initiated an investigation into Soleno, focusing on the accuracy of the company's statements regarding the safety and commercial prospects of VYKAT™ XR [2][6] - The investigation was prompted by concerns raised by short seller Scorpion Capital, which highlighted reports of children hospitalized for potential heart failure after using the drug [4] Competitive Position - Scorpion Capital characterized Soleno as a "one-trick pony" with no other significant assets or pipeline, emphasizing the risk of the company's failure if VYKAT™ XR does not succeed, especially with its core patent expiring in 2026 [4] - The report also questioned the integrity of Soleno's launch metrics and raised concerns about a controversial physician involved in key trials, suggesting potential irregularities in data integrity [5] Financial Impact - Since the publication of Scorpion's report on August 14, 2025, Soleno's share price has declined nearly 40% by November 5, 2025 [5]