The study will comprise a Screening Period (28 days), Treatment Period (90 days), and Follow-up Period (90 days). Participants will receive CCH-aaes in different doses, concentrations, diluent additives, depths of injection, and methods of injection in a split buttock arrangement, with the right buttock serving as the control, and the left buttock (investigational side) receiving a study intervention.
The study will evaluate the effect of different doses, strengths (concentrations), diluent additives, depths of injection, and methods of injection on the severity of bruising potentially induced by QWO (collagenase clostridium histolyticum-aaes [CCH-aaes]).