
SERENITY At-Home Trial Overview - The SERENITY At-Home trial evaluated the safety and tolerability of BXCL501 (120 mcg) for agitation associated with bipolar disorder or schizophrenia in the at-home setting[2, 27, 28] - The trial design was a double-blind, placebo-controlled study with a 1:1 randomization to BXCL501 (N=100) or placebo (N=100) over a 12-week period[27] - The study included patients aged 18-75 years with bipolar I or II disorder, schizophrenia, schizoaffective, or schizophreniform disorder on a stable psychotropic regimen[30] Key Results - The trial collected data from 2,628 agitation episodes in 215 patients, with 2,437 episodes treated in 208 patients[21, 22, 36] - 168 (81%) of treated patients completed the full 12-week study, with an average of 117 agitation episodes recorded per treated patient[36] - No drug-related serious adverse events (SAEs), falls, or syncopes were reported in the BXCL501 arm[23, 37] - The adverse event profile was consistent with the approved IGALMI® label and other clinical trials in institutional settings[23, 37] - Somnolence was the most common treatment-emergent adverse event (TEAE) in the BXCL501 group, occurring in 23 (225%) of patients after the first dose and 161 (139%) of all doses[38] Clinical Benefit - BXCL501 demonstrated a significant mean reduction in mCGI-S score from baseline compared to placebo at 2 hours across 2,433 treated episodes (P<005)[41] - Complete resolution of agitation was significantly higher with BXCL501 compared to placebo across agitation episode severity (P<0001)[41] - For fully resolved episodes by baseline severity, BXCL501 showed higher percentages than placebo across mild, moderate, and severe agitation episodes[43] Next Steps - BioXcel Therapeutics plans to prepare and submit an sNDA (supplemental New Drug Application) in Q1 2026 for label expansion of IGALMI®[12, 23]