On March 7, 2022 Alpine Immune Sciences, Inc. (NASDAQ: ALPN), a leading clinical-stage immunotherapy company focused on developing innovative treatments for cancer and autoimmune and inflammatory diseases, reported that the U.S. Food and Drug Administration (FDA) has placed a partial clinical hold on its NEON-2 trial evaluating davoceticept (ALPN-202) in combination with pembrolizumab in adults with advanced malignancies (Press release, Alpine Immune Sciences, MAR 7, 2022, View Source [SID1234609579]).
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!
The partial clinical hold was prompted by Alpine’s report of a Grade 5 serious adverse event (patient death) in the NEON-2 trial. The participant had choroidal melanoma previously treated with nivolumab and ipilimumab, and had received a single dose each of davoceticept and pembrolizumab. The participant’s death was attributed to cardiogenic shock, considered by the treating physicians as likely related to immune-mediated myocarditis, or possibly infection.
"Patient safety remains, as always, our top priority," said Mitchell H. Gold, Executive Chairman and Chief Executive Officer of Alpine. "We appreciate the dialogue with FDA and look forward to working diligently with FDA, Merck, the study Safety Monitoring Committee, and the study investigators to further understand this unfortunate event. Given the strong scientific rationale for the combination of davoceticept and pembrolizumab to benefit treatment-refractory patients, we are hopeful that the study will soon be resumed after appropriate safety review, and with appropriate safety precautions in place."
Patients currently enrolled in the NEON-2 trial may continue to receive davoceticept and pembrolizumab, although no additional patients may be enrolled until the partial clinical hold is resolved. The partial clinical hold does not affect the ongoing NEON-1 clinical trial of davoceticept as monotherapy (NCT04186637).
About Davoceticept (ALPN-202)
Davoceticept (ALPN-202) is a first-in-class, conditional CD28 costimulator and dual checkpoint inhibitor intended for the treatment of cancer. Preclinical studies of davoceticept have successfully demonstrated superior efficacy in tumor models compared to checkpoint inhibition alone. Completion of dose escalation and initiation of expansion cohorts of NEON-1 (NCT04186637), a Phase 1 monotherapy dose escalation and expansion trial in patients with advanced malignancies, is anticipated in the first half of 2022. NEON-2 (NCT04920383), a combination study of davoceticept (ALPN-202) and pembrolizumab was initiated in June 2021 and is currently on partial clinical hold as described above.