Additional Relevant Details
OPKO resubmitted the NDA following receipt of a complete response letter (CRL) from the FDA on March 29, 2016, in which the FDA indicated the NDA could not be approved due to deficiencies observed during a facility inspection of OPKO's third party manufacturer. The observations were not specific to RAYALDEE manufacturing, and the CRL did not cite any safety, efficacy or labeling issues with regard to RAYALDEE, nor did it request any additional studies to be conducted prior to FDA approval.