Stemline Therapeutics to Present SL-801 Phase 1 Data at Upcoming ESMO Congress

NEW YORK, Aug. 30, 2017 (GLOBE NEWSWIRE) — Stemline Therapeutics, Inc. (Nasdaq:STML), a clinical-stage biopharmaceutical company developing novel therapeutics for difficult to treat cancers, announced today that data from SL-801’s ongoing Phase 1 trial in patients with advanced solid tumors has been selected by the European Society of Medical Oncology (ESMO) for poster presentation at their Annual Congress 2017, to be held September 8-12, 2017 in Madrid, Spain. SL-801 is a novel, potent and reversible Exportin-1 (XPO1) inhibitor.

Details on the presentation are as follows:

Title:     Ongoing Phase 1 Trial of SL-801, a Novel XPO-1 Inhibitor, in Patients with Advanced Solid Tumors; Interim Results
First Author:     Judy Wang, MD; Florida Cancer Specialists & Research Institute
Abstract:     406P

Date/Time:     Monday, September 11, 2017 – 1:15-2:15 PM CET
Location:     Hall 8

About Stemline Therapeutics 
Stemline Therapeutics, Inc. is a clinical stage biopharmaceutical company developing novel therapeutics for difficult to treat cancers. SL-401 was granted Breakthrough Therapy Designation (BTD) for the treatment of patients with blastic plasmacytoid dendritic cell neoplasm (BPDCN). SL-401 is a targeted therapy directed to the interleukin-3 receptor (CD123), a cell surface receptor overexpressed on BPDCN and a variety of other malignancies. A pivotal Phase 2 trial with SL-401 in BPDCN has completed enrollment in Stages 1, 2 and 3 of the trial. An additional cohort, Stage 4, is currently enrolling BPDCN patients to ensure ongoing access to SL-401. Additional Phase 1/2 trials with SL-401, as a single agent or in combination with other agents, are ongoing in patients with other malignancies including myeloproliferative neoplasms (MPN) (focused on chronic myelomonocytic leukemia [CMML] and myelofibrosis [MF]), acute myeloid leukemia (AML), and multiple myeloma. A Phase 1 trial of SL-801, a novel oral small molecule reversible XPO1 inhibitor, is enrolling patients with advanced solid tumors. A Phase 2 trial of SL-701, an immunotherapeutic, has completed dosing of patients with second-line glioblastoma and patients are being followed for outcomes including survival.

Forward-Looking Statements
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