On November 8, 2019 Alpine Immune Sciences, Inc. (NASDAQ:ALPN), a leading clinical-stage immunotherapy company focused on developing innovative treatments for cancer, autoimmune/inflammatory, and other diseases, today presented new preclinical data on ALPN-202, a conditional CD28 costimulator and dual checkpoint inhibitor for the treatment of advanced malignancies, at The Society for Immunotherapy of Cancer (SITC) (Free SITC Whitepaper)’s (SITC) (Free SITC Whitepaper) 34th Annual Meeting (Press release, Alpine Immune Sciences, NOV 8, 2019, View Source [SID1234550761]). ALPN-202 is Alpine’s lead oncology program and remains on track to initiate a first-in-human clinical trial by the first quarter of 2020.
Schedule your 30 min Free 1stOncology Demo!
Discover why more than 1,500 members use 1stOncology™ to excel in:
Early/Late Stage Pipeline Development - Target Scouting - Clinical Biomarkers - Indication Selection & Expansion - BD&L Contacts - Conference Reports - Combinatorial Drug Settings - Companion Diagnostics - Drug Repositioning - First-in-class Analysis - Competitive Analysis - Deals & Licensing
Schedule Your 30 min Free Demo!
ALPN-202 is designed to improve upon the safety and efficacy of existing combination checkpoint and/or costimulation therapeutic strategies. One poster presents mechanistic data supporting that ALPN-202 inhibits both the PD-L1 and CTLA-4 checkpoint pathways while also providing PD-L1-dependent CD28 costimulation, as intentionally designed. A second poster demonstrates the ability of ALPN-202 to improve significantly upon the activity of existing cancer therapeutics when given alone and/or in combination in preclinical models. In addition, crystallographic study suggests that ALPN-202 binds PD-L1 and CD28 at distinct, non-overlapping epitopes enabling its potentially unique functionality:
P793. ALPN-202, a Conditional CD28 Costimulator and Dual Checkpoint Inhibitor, Utilizes Multiple Mechanisms to Elicit Potent Anti-Tumor Immunity Superior to Checkpoint Blockade
P467. ALPN-202, a Conditional CD28 Costimulator and Dual Checkpoint Inhibitor, Enhances the Activity of Multiple Standard of Care Modalities
Immune checkpoint inhibitors targeting the PD-1/PD-L1 and/or CTLA-4 pathways have demonstrated clinical activity in multiple cancers, but many patients still experience inadequate anti-tumor responses and/or relapse, which may be in part due to insufficient anti-tumor T cell activation and/or exhaustion. At the same time, combinations of checkpoint inhibitors and/or costimulatory agents can result in excessive immune-related toxicities. "ALPN-202 is engineered to address both of these issues by promoting T cell activity, but primarily only in a tumor-specific fashion, to produce specific, durable anti-tumor immune responses," said Stanford Peng, MD PhD, Alpine’s President and Head of Research and Development. "These data continue to encourage us regarding the potential for ALPN-202 as a new, first-in-class cancer immunotherapy. We continue to look forward to initiating our first clinical trial of ALPN-202."
The full poster presentations can be found at: View Source and View Source
About ALPN-202
ALPN-202 is a first-in-class, conditional CD28 costimulator and dual checkpoint inhibitor, which has the potential to improve upon the efficacy of combined checkpoint inhibition while limiting significant toxicities. Preclinical studies of ALPN-202 have successfully demonstrated superior efficacy in tumor models compared to checkpoint inhibition alone. We anticipate initiation of the first-in-human clinical study of ALPN-202 to begin by the first quarter of 2020.