ProJenX Partial Hold Lifted in ALS Study
FDA has lifted a partial clinical hold against ProJenX and its Study PRO-101, a hybrid Phase 1 clinical trial evaluating prosetin — a first-in-class MAP4 kinase (MAP4K) inhibitor—in healthy volunteers and participants with amyotrophic lateral sclerosis (ALS). “The healthy volunteer portions of the trial have been completed, and the company is initiating Part 1c of PRO-101, designed to evaluate the safety, tolerability, pharmacokinetics, and pharmacodynamics of prosetin in participants with ALS,” the company says. “Our Columbia University and Project ALS co-founders have invested over two decades in scientific research that shows a critical role for MAP4K inhibition on ALS motor neuron survival, and we are thrilled to be advancing prosetin to people living with ALS in the coming months.”
The company says that following the discovery that MAP4K inhibition “confers potent motor neuron protection across multiple patient stem cell-derived models of ALS, prosetin was optimized for potency against MAP4Ks, efficacy in motor neuron rescue, and preferential distribution to the CNS.”