On January 2, 2024 Leap Therapeutics, Inc. (Nasdaq:LPTX), a biotechnology company focused on developing targeted and immuno-oncology therapeutics, reported that enrollment has been completed in the randomized controlled Part C of the DisTinGuish study evaluating DKN-01, Leap’s anti-Dickkopf-1 (DKK1) antibody, in combination with tislelizumab, BeiGene’s anti-PD-1 antibody, and chemotherapy in patients with advanced gastroesophageal junction and gastric cancer (Press release, Leap Therapeutics, JAN 2, 2024, View Source [SID1234638879]).

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"The completion of enrollment in Part C of the DisTinGuish study is an important milestone and continues to underscore the high level of interest from both patients and investigators in DKN-01," said Cynthia Sirard, M.D., Chief Medical Officer of Leap. "Long-term follow-up data from Part A of the study clearly demonstrated the potential to induce durable responses and clinically meaningful survival outcomes in first-line advanced gastroesophageal junction and gastric cancer patients. We expect Part C to further validate the potential of DKN-01 and tislelizumab combination therapy and look forward to having initial data from Part C over the course of this year."

Part C of the DisTinGuish study (NCT0436380) is a Phase 2, randomized, open-label, multicenter study of DKN-01 in combination with tislelizumab and chemotherapy in first-line patients with advanced gastroesophageal adenocarcinoma. Part C enrolled 170 first-line, HER2-negative patients. Patients were randomized 1:1 to evaluate DKN-01 in combination with tislelizumab and standard of care (SOC) chemotherapy, compared to tislelizumab and SOC chemotherapy alone. The primary objective is progression-free survival (PFS) in DKK1-high and in all patients. Secondary objectives of Part C include overall survival and objective response rate as measured by RECIST v1.1 in DKK1-high and in all patients.