Biopharma clinical updates June 2026Definium’s LSD phase III win caps a strong June for CNS therapiesBioWorld tracked 260 clinical trial readouts across phases I through III in June 2026, compared to 262 in May. By phase, BioWorld recorded 87 phase I readouts in May, 90 in phase II and 83 in phase III, a relatively even spread across phases. Of the phase III programs, 32 trials posted positive results, and five failed to meet primary endpoints.