Acticor Biotech is discussing with the FDA and the EMA its development program for the acute ischemic stroke (AIS) indication. In the US, Acticor Biotech was granted FDA Type C consultation on its non-clinical and clinical developments for its first-in-class drug candidate, glenzocimab.Written responses were received by the end of May 2023 on a list of questions regarding potential future marketing authorization (BLA) of glenzocimab in AIS indication. The FDA provided valuable feedback to reinforce the proposed development plan and to best address US requirements on the expected design of a pivotal study.

These recommendations will be evaluated in an aim to adjust some parameters of the ongoing ACTISAVE study, taking into account both US and EU opinions to propose a single acceptable development plan up to registration. In parallel, a new FDA Type C consultation was granted on the pharmaceutical development with written answers expected by end of July 2023. In Europe, Acticor continues to discuss the clinical and pharmaceutical developments for registration with the EMA as part of the PRIME designation program.

Additional scientific advice requests under this program have been validated by the EMA including the pharmaceutical development plan. As a reminder, the positive results of the ACTIMIS phase 1b/2a clinical trial evaluating glenzocimab in combination with the reference treatment (thrombolysis with or without thrombectomy) in patients presenting with AIS demonstrated glenzocimab very favorable safety profile by meeting the primary end-point of the trial, as well as by showing a significant reduction in the number of intracerebral hemorrhages and mortality in the group treated with glenzocimab. To date, the ACTISAVE study has enrolled more than 300 patients across 10 countries in the world.

Out of them, 100 have been treated with thrombolysis with thrombectomy, reaching the target for the first futility analysis. The Independent Data Meeting Committee (IDMC) will gather in Fourth Quarter 2023 to confirm safety and ascertain that preliminary results are aligned with the initial trial assumptions. About ACTISAVE: ACTISAVE (NCT05070260) is a multinational, adaptive, multicenter, randomized, double-blind, placebo-controlled, parallel-group Phase 2/3 study evaluating the safety and efficacy of a single dose of glenzocimab used in combination with standard of care (thrombolysis +/- thrombectomy) for acute ischemic stroke.