Stemline Therapeutics Announces SL-701 and SL-801 Clinical Data to be Featured, Including an Oral Presentation, at Upcoming ESMO 2018 Congress

NEW YORK, Oct. 16, 2018 (GLOBE NEWSWIRE) -- Stemline Therapeutics, Inc. (Nasdaq: STML), a clinical-stage biopharmaceutical company developing novel oncology therapeutics, announced today that clinical data from its SL-701 and SL-801 trials have been selected for presentation, including an oral presentation, at the upcoming European Society of Medical Oncology (ESMO) Annual Congress 2018 to be held from October 19-23, in Munich, Germany. The details of the data presentations are outlined below.

Results of Phase II Trial Of SL-701, a Novel Immunotherapy Targeting IL-13Ra2, Epha2, and Survivin, in Adults with Second-Line Recurrent Glioblastoma (GBM)

  • Type: Oral Presentation
  • Session: Proffered Paper session – CNS tumours
  • Presentation Number: 373O
  • Date: Friday, October 19, 2018
  • Lecture Time: 16:39 – 16:51 CEST (10:39 AM EDT)
  • Speaker: David Peereboom, MD; Cleveland Clinic

Interim Results from a Phase 1 Trial of SL-801, a Novel XPO-1 Inhibitor, in Patients with Advanced Solid Tumors

  • Type: Poster Presentation
  • Session: Poster display session: Breast cancer - early stage, locally advanced & metastatic, CNS tumours, Developmental therapeutics, Genitourinary tumours - prostate & non-prostate, Palliative care, Psycho-oncology, Public health policy, Sarcoma, Supportive care
  • Presentation Number: 428P
  • Date: Monday, October 22, 2018
  • Time: 12:45 – 13:45 CEST (6:45 – 7:45 AM EDT)
  • Speaker: Todd M. Bauer, MD; Tennessee Oncology

Abstracts are currently available on the ESMO congress website ( Following each presentation at the conference, the data presented will be available on Stemline’s website ( under the Scientific Presentations tab.

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About Stemline Therapeutics
Stemline Therapeutics, Inc. is a clinical-stage biopharmaceutical company developing novel oncology therapeutics. Stemline is developing three clinical stage product candidates, ELZONRISTM (tagraxofusp; SL-401), SL-801, and SL-701. ELZONRIS is a targeted therapy directed to the interleukin-3 receptor (CD123) present on a range of malignancies. ELZONRIS 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 Biologics License Application (BLA) has been accepted for filing and granted Priority Review by the FDA. ELZONRIS is also being evaluated in clinical trials in additional indications including chronic myelomonocytic leukemia (CMML), myelofibrosis (MF), and others. 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.

Forward-Looking Statements
Some of the statements included in this press release may be forward-looking statements that involve a number of risks and uncertainties. For those statements, we claim the protection of the safe harbor for forward-looking statements contained in the Private Securities Litigation Reform Act of 1995. The factors that could cause our actual results to differ materially include: the success and timing of our BLA submission to the FDA; the success and timing of our clinical trials and preclinical studies for our product candidates, including site initiation, institutional review board approval, scientific review committee approval, patient accrual, safety, tolerability and efficacy data observed, and input from regulatory authorities including the risk that the FDA or other ex-U.S. national drug authority ultimately does not agree with our data, find our data supportive of approval, or approve any of our product candidates; our plans to develop and commercialize our product candidates; market acceptance of our products; reimbursement available for our products; our available cash and investments; our ability to obtain and maintain intellectual property protection for our product candidates; our ability to obtain and maintain intellectual property protection for our product candidates; our ability to manufacture; the performance of third-party manufacturers, clinical research organizations, clinical trial sponsors and clinical trial investigators; and other risk factors identified from time to time in our reports filed with the SEC. Any forward-looking statements set forth in this press release speak only as of the date of this press release. We do not intend to update any of these forward-looking statements to reflect events or circumstances that occur after the date hereof.

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