Collegium Pharmaceutical, Inc. is a privately held, commercial stage, specialty pharmaceutical company focused on late-stage product development, and commercialization of both prescription and OTC pharmaceuticals for the treatment of central nervous system ("CNS"), respiratory and skin related disorders.

The Company, through its wholly-owned subsidiary, Onset Therapeutics LLC (www.onsettx.com) markets innovative products to the wound care and dermatology markets. Onset markets prescription pharmaceutical products through its field and in-house sales force.