
Vertex Pharmaceuticals Incorporated (NASDAQ:VRTX) shares are trading lower by 3.42% to $263.88 during Monday’s pre-market session after the company announced VX-880 Phase 1/2 has been placed on clinical hold by the FDA due to “a determination that there is insufficient information to support dose escalation with the product.”
Vertex Pharmaceuticals says, across the program, VX-880 has been generally well tolerated to date. There have been no serious adverse events (SAEs) considered related to VX-880. The majority of adverse events (AEs) were mild or moderate in all patients treated to date. The safety profile was generally consistent with the immunosuppressive regimen used in the study and the perioperative period.