Collegium Pharmaceutical, Inc. is a specialty pharmaceutical company. The Company is engaged in developing and commercializing abuse-deterrent products that incorporate its DETERx platform technology for the treatment of chronic pain and other diseases. Its products include Xtampza ER and ONSOLIS. Its DETERx platform provides extended-release drug delivery, while safeguarding against common methods of abuse and tampering, including crushing, chewing, and heating and injecting. Xtampza ER is designed to provide adequate pain control while maintaining its extended-release drug release profile after being subjected to common methods of abuse and accidental misuse. ONSOLIS is a Transmucosal Immediate-Release Fentanyl (TIRF) film indicated for the management of breakthrough pain in cancer patients (BTPc), 18 years of age and older, who are already receiving and who are tolerant to opioid therapy for their underlying persistent cancer pain.