Wellmarker Bio is pleased to sign a clinical collaboration and supply agreement with MSD (Merck & Co., Inc., Rahway, NJ, USA) to evaluate a first-in-class treatment with a novel mechanism in combination with KEYTRUDA® (pembrolizumab), MSD's anti-PD-1 therapy.


Under the agreement, WMBIO will sponsor the Phase 1 (or Phase 1b) clinical trial for WM-A1-3389, a novel therapeutic antibody for Non-Small Cell Lung Cancer (NSCLC) patients with low or no PD-L1 expression, in combination with KEYTRUDA® (pembrolizumab), MSD's anti-PD-1 therapy. Some NSCLC patients with low or no PD-L1 expression have shown limited response to treatment with immunotherapies alone and there is a high unmet need in these patient populations. WMBIO is also planning to expand the target patient group to other solid tumor indications.


WM-A1-3389 is a novel therapeutic antibody targeting a new immune checkpoint protein discovered by Wellmarker Bio and has demonstrated efficacy across different PBMC humanized models. An additive benefit of WM-A1-3389 and anti-PD-1 antibody was evidenced in preclinical mouse models including PD-1-resistant CT26 and LLC-1 mouse models.


WM-A1-3389 development was funded by Korea Drug Development Fund (KDDF). In eary 2022, this study was selected by the follow-up project of Korea Drug Development Fund (KDDF, Director. Muk, Hyunsang) in the preclinical stage.In addition, Wellmarker Bio is co-developing liquid biopsy companion diagnostics (CDx) with Cytogen. PharmaVentures Ltd., a UK-based premier transaction advisory firm, acted as the exclusive advisor for this collaboration and the ongoing partnering efforts for WM-A1-3389.


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Link: https://www.prnewswire.com/news-releases/wellmarker-bio-announces-clinical-trial-collaboration-with-msd-to-evaluate-wm-a1-3389-in-combination-with-keytruda-pembrolizumab-301740565.html