INCHEON, South Korea — Celltrion (KRX:068270) has made a resubmission to the FDA (U.S. Food and Drug Administration) to obtain its marketing approval for CT-P6, a proposed mAb biosimilar to Herceptin ® (trastuzumab). Celltrion submitted its abbreviated Biologics License Applications (aBLAs) for CT-P10 and CT-P6 to the FDA in April and May of last year, respectively. However, it received CRLs (complete response letters) from the FDA related to the warning letter issued by the FDA in January 2018, related to the manufacturing facility in Incheon, South Korea. Celltrion had completed the resubmission for the approval of CT-P10, a proposed biosimilar to Rituxan ® (rituximab) last month.