Revance's phase 2 trial for Daxibotulin does not meet primary efficacy endpoint

Revance Therapeutics announced results from its Phase 2 clinical trial of investigational drug candidate DaxibotulinumtoxinA for Injection for the management of plantar fasciitis. This Phase 2 prospective, randomized, double-blind, multi-center, placebo-controlled trial evaluated the safety and efficacy of two doses of DaxibotulinumtoxinA for Injection in reducing the signs and symptoms of plantar fasciitis. The trial enrolled 155 adult patients with unilateral plantar fasciitis, 18 to 65 years of age, at 17 study centers in the United States. Patients were randomized (1:1:1) to receive an injection of DAXI 80 U, DAXI 120 U or placebo. The study's primary efficacy endpoint was the change from baseline on the 10-point Numeric Pain Rating Scale score averaged over five days at Week 8. Patients were followed for up to 24 weeks post treatment to assess treatment response, tolerability and safety. In the trial, both doses of DaxibotulinumtoxinA for Injection resulted in significant, measurable pain relief after treatment that was numerically greater than placebo. However, neither dose met the primary efficacy endpoint of statistically significant improvement from baseline in the NPRS for foot pain at Week 8, compared to placebo. Subjects treated with DaxibotulinumtoxinA for Injection showed an average reduction from baseline of 3.29 on the NPRS (a 54.6% reduction) at 80U (p=0.2135 vs. placebo) and 3.25 on the NPRS (a 50.1% reduction) at 120U (p=0.2205 vs. placebo, p=0.9207 vs. 80U), compared to placebo subjects at 2.75 on the NPRS (a 45.1% reduction).