FDA approval of Teva’s fremanezumab depends on a speedy resolution of a plant run by CMO Celltrion but this is looking increasingly likely, an analyst says. The US Food and Drug Administration (FDA) had set the Prescription Drug User Fee Act (PDUFA) action date for fremanezumab, a humanized monoclonal antibody targeting calcitonin gene–related peptide (CGRP) for mid-June. But Teva Pharmaceutical Industries envisioned a delay after its contract manufacturer Celltrion received an FDA warning letter in January. Celltrion’s site in Incheon,…