"Mast cell-driven diseases represent significant unmet medical needs worldwide, affecting millions of patients who often struggle with inadequate symptom relief with current therapies," said Jae Kim, M.D., chief medical officer of Septerna. "We are excited to initiate the first-in-human trial for SEP-631, a small molecule NAM that aims to inhibit mast cell activation by selectively blocking MRGPRX2, a GPCR that plays a critical role in mast cell activation and degranulation. SEP-631 has the potential to pro ...