Clene Inc. and its wholly owned subsidiary Clene Nanomedicine Inc. announced positive topline results from the Phase 2 VISIONARY-MS trial of CNM-Au8®, an investigational gold nanocrystal suspension, in participants with stable relapsing remitting multiple sclerosis (RRMS). VISIONARY-MS was a Phase 2 proof-of-concept, multicenter, randomized, double-blind, placebo-controlled trial evaluating the efficacy and safety of CNM-Au8 (15 mg or 30 mg daily) as adjunctive therapy to currently available disease-modifying therapies (DMTs) versus placebo over 48 weeks in stable RRMS participants with chronic optic neuropathy. Consistent improvements favoring CNM-Au8 were observed across multiple paraclinical biomarkers, including multifocal visual evoked potentials (mfVEP) amplitude and latency, optical coherence tomography (OCT), and MRI endpoints, including magnetization transfer ratio and diffusion tensor imaging metrics.

Placebo treated patients, in contrast, generally worsened as expected across these measures during the 48-week period. These data provide independently assessed quantitative physiological evidence that supports the potential neuroprotective and remyelinating effects of CNM-Au8. The full dataset will be reported at an upcoming scientific congress.