Ensysce Biosciences, Inc. is a clinical-stage pharmaceutical company based in La Jolla, California, that develops prescription drugs for severe pain relief with features intended to address opioid misuse, abuse, and overdose in the United States. Its products use the Trypsin Activated Abuse Protection (TAAP) platform, designed to release clinically effective drugs only under specific physiological conditions, and the Multi-Pill Abuse Resistance (MPAR) platform, an overdose-protection opioid prodrug technology. The lead product candidate is PF614, a TAAP oxycodone prodrug candidate for severe or chronic pain, and PF614-MPAR, a combination of PF614 and nafamostat for overdose protection. The company is also developing PF8001 and PF8026, extended- and immediate-release amphetamine prodrugs for attention deficit hyperactivity disorder, and PF9001 for opioid use disorder. Founded in 2003, Ensysce Biosciences is based in La Jolla, California.