SHPH SHUTTLE PHARMACEUTICALS HOLDINGS INC Company Mergers 8-K Filing 2025 - Study Expansion Shuttle Pharmaceuticals' subsidiary entered a change order with Theradex Systems to support a Phase 2 study, increasing patient count from 15 to 16 and expanding the number of sites from four to six, with some budget increases due to these changes.Get access to all SEC 8-K filings of the SHUTTLE PHARMACEUTICALS HOLDINGS INC