WARREN, N.J.--(BUSINESS WIRE)--Celgene Cellular Therapeutics (CCT), a wholly owned subsidiary of Celgene Corporation (NASDAQ: CELG), today announced the U.S. Food and Drug Administration (FDA) has accepted the company’s investigational new drug application to initiate a clinical trial using PDA001, an immunomodulatory therapy utilizing human placenta-derived stem cells obtained via CCT’s proprietary processes. Clinical development will begin by the end of the year with the initiation of this Phase I, multi-center clinical trial in the U.S. for patients with moderate-to-severe Crohn’s disease, who are refractory to oral corticosteroids, such as prednisone, and immune suppressants.