NEW YORK, NY, USA I April 05, 2018 I Stemline Therapeutics, Inc. (Nasdaq:STML), a clinical-stage biopharmaceutical company developing novel oncology therapeutics, announced today that it has initiated its rolling submission of a Biologics License Application (BLA) for SL-401 to the U.S. Food and Drug Administration (FDA). SL-401 is a targeted therapy directed to CD123 that has been granted Breakthrough Therapy designation (BTD) by the FDA.

Ivan Bergstein, MD, CEO of Stemline, commented, “The start of our rolling BLA submission is a major milestone for Stemline and the BPDCN patient community at large. If successful, SL-401 would be the first drug ever approved for BPDCN. Moreover, we believe that SL-401 may have a transformative impact on the outcomes of patients with this lethal malignancy of high unmet medical need. With this in mind, our clinical, regulatory, manufacturing, and commercial teams continue to work expeditiously to bring SL-401 to patients as quickly as possible.”

About Stemline Therapeutics
Stemline Therapeutics, Inc. is a clinical-stage biopharmaceutical company developing novel oncology therapeutics. Stemline is developing three clinical stage product candidates, SL-401, SL-801, and SL-701. SL-401 is a targeted therapy directed to the interleukin-3 receptor (CD123) present on a range of malignancies. SL-401 has completed a pivotal trial in blastic plasmacytoid dendritic cell neoplasm (BPDCN), for which it was granted breakthrough therapy designation (BTD). The pivotal trial met its primary endpoint, and a rolling BLA submission has been initiated. SL-401 is also being evaluated in clinical trials in additional indications including chronic myelomonocytic leukemia (CMML), myelofibrosis (MF), acute myeloid leukemia (AML), and myeloma. SL-801 is a novel oral small molecule reversible inhibitor of XPO1 that is currently in a Phase 1 trial of patients with advanced solid tumors; dose escalation is ongoing. SL-701, an immunotherapeutic, has completed a Phase 2 trial in patients with second-line glioblastoma; data and next steps for the program are being evaluated.

SOURCE: Stemline Therapeutics