Leap Therapeutics to Present Preclinical and Clini

CAMBRIDGE, Mass., March 01, 2017 (GLOBE NEWSWIRE) -- Leap Therapeutics, Inc. (Nasdaq: LPTX ), a biotechnology company developing targeted and immuno-oncology therapeutics, today announced preclinical and clinical data presentations will be made during the 2017 American Association for Cancer Research (AACR) Annual Meeting, being held April 1 - 5, 2017, in Washington, D.C. Data on TRX518 will be presented as an oral presentation in a clinical trials plenary session by Roberta Zappasodi, Ph.D., Parker Institute Scholar and Research Scholar in the Ludwig Collaborative Laboratory at Memorial Sloan Kettering Cancer Center from the lab of Taha Merghoub, Ph.D., Associate Attending Lab Member of the Ludwig Collaborative Laboratory at the Memorial Sloan Kettering Cancer Center and Jedd Wolchok, M.D. Ph.D., Chief of Melanoma and Immunotherapeutics Service at Memorial Sloan Kettering Cancer Center.

Abstract Number and Title: #CT018, Intratumor and peripheral Treg modulation as a pharmacodynamic biomarker of the GITR agonist antibody TRX-518 in the first in-human trial Session Title: Immuno-oncology Biomarkers in Clinical Trials Session Date and Time: Sunday Apr 2, 2017 3:28 PM - 3:43 PM Session Location: Hall D-E, Level 2, Washington Convention Center

Abstract Number and Title: #369, Therapeutic targeting of the Wnt antagonist DKK1 with a humanized monoclonal antibody in oncology indications Session Title: Cell Growth Signaling Pathways 2 Session Date and Time: Sunday Apr 2, 2017 1:00 PM - 5:00 PM Session Location: Convention Center, Halls A-C, Poster Section 15

About Leap Therapeutics Leap Therapeutics’ (NASDAQ: LPTX ) most advanced clinical candidate, DKN-01, is a humanized monoclonal antibody targeting the Dickkopf-1 (DKK1) protein. DKN-01 is in clinical trials in patients with gastroesophageal cancer in combination with paclitaxel and in patients with biliary tract cancers in combination with gemcitabine and cisplatin. DKN-01 has demonstrated single agent activity in non-small cell lung cancer patients. Leap’s second clinical candidate, TRX518, is a novel, humanized GITR agonist monoclonal antibody designed to enhance the immune system’s anti-tumor response.  For more information about Leap Therapeutics, visit http://www.leaptx.com or our public filings with the SEC that are available via EDGAR at http://www.sec.gov or via http://www.investors.leaptx.com/ .

FORWARD LOOKING STATEMENTS

Some of the statements in this release are forward looking statements within the meaning of Section 27A of the Securities Act of 1933, Section 21E of the Securities Exchange Act of 1934 and the Private Securities Litigation Reform Act of 1995, which involve risks and uncertainties. These statements relate to future events of Leap’s development of DKN-01, TRX518, and other programs, future expectations, plans and prospects. Although Leap believes that the expectations reflected in such forward-looking statements are reasonable as of the date made, expectations may prove to have been materially different from the results expressed or implied by such forward-looking statements. Leap has attempted to identify forward looking statements by terminology including ‘‘believes,’’ ‘‘estimates,’’ ‘‘anticipates,’’ ‘‘expects,’’ ‘‘plans,’’ ‘‘projects,’’ ‘‘intends,’’ ‘‘potential,’’ ‘‘may,’’ ‘‘could,’’ ‘‘might,’’ ‘‘will,’’ ‘‘should,’’ ‘‘approximately’’ or other words that convey uncertainty of future events or outcomes to identify these forward-looking statements. These statements are only predictions and involve known and unknown risks, uncertainties, and other factors. Any forward looking statements contained in this release speak only as of its date. We undertake no obligation to update any forward-looking statements contained in this release to reflect events or circumstances occurring after its date or to reflect the occurrence of unanticipated events.

CONTACT Douglas E. Onsi Chief Financial Officer Leap Therapeutics, Inc. donsi@leaptx.com 617-714-0360