This study investigates a treatment for individuals with Hidradenitis Suppurativa, a chronic skin condition that causes painful bumps, abscesses (painful, pus-filled lumps), and draining tunnels (channels under the skin that leak fluid) under the skin. The research aims to determine if the experimental drug NAV-240 is more effective than a placebo in managing this condition.

Participants in this clinical trial will be randomly assigned to receive either NAV-240 or a placebo consisting of sodium chloride. The medication will be administered through an intravenous method, which means it is delivered directly into a vein using a solution for infusion. To ensure the results are reliable, the study is double-blind, meaning neither the participants nor the researchers know which treatment is being given during the course of the study.