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The placebo effect can involve neurobiological mechanisms including endogenous opioid release, dopamine activation, and other central nervous system changes triggered by expectation.","oneSentence":"A placebo contains no active pharmaceutical ingredient and produces therapeutic effects solely through the patient's expectation and psychological response.","_ai_confidence":"high"},"_scrapedAt":"2026-03-28T00:51:23.167Z","_scrapedBy":"cloudflare-swarm","_wikipedia":null,"indications":{"approved":[{"name":"Control arm in cannabis efficacy and safety trial"}]},"trialDetails":[{"nctId":"NCT06334016","phase":"EARLY_PHASE1","title":"Evaluating the Delivery and Effects of THC Vaping Liquids in the Bloodstream","status":"NOT_YET_RECRUITING","sponsor":"Roswell Park Cancer Institute","startDate":"2026-05-15","conditions":"Cannabis Dependence","enrollment":60},{"nctId":"NCT04627922","phase":"PHASE4","title":"N-Acetylcysteine for Smoking Cessation in Tobacco and Cannabis Co-Use","status":"COMPLETED","sponsor":"Ellen Herbst","startDate":"2021-08-25","conditions":"Cannabis Use, Tobacco Use Disorder, Drug Use Disorder","enrollment":59},{"nctId":"NCT05427630","phase":"PHASE2","title":"Dose-Ranging Trial of Inhaled Cannabis for Acute Migraine Treatment","status":"SUSPENDED","sponsor":"University of California, San Diego","startDate":"2023-02-15","conditions":"Migraine, Cannabis, THC","enrollment":20},{"nctId":"NCT07468552","phase":"PHASE2","title":"Trial of Tirzepatide for the Treatment of Cannabis Use Disorder","status":"NOT_YET_RECRUITING","sponsor":"National Institute on Drug Abuse (NIDA)","startDate":"2026-11-15","conditions":"Cannabis Use Disorder","enrollment":100},{"nctId":"NCT07459920","phase":"PHASE2","title":"Cannabis extrAct in Oncology Patients for the Treatment of TUmor Related Symptom Burden","status":"NOT_YET_RECRUITING","sponsor":"National Cancer Institute, Naples","startDate":"2026-04-01","conditions":"Advanced Malignant Solid Tumor","enrollment":156},{"nctId":"NCT04495725","phase":"NA","title":"Do Discounted Vouchers for Medical Cannabis Reduce Opioid Use in Adults With Pain","status":"COMPLETED","sponsor":"Vireo Health","startDate":"2020-10-06","conditions":"Opioid Use, Marijuana, Chronic Pain","enrollment":270},{"nctId":"NCT06395688","phase":"PHASE1","title":"Drug-Drug Interaction Between THC and AEF0117","status":"WITHDRAWN","sponsor":"Aelis Farma","startDate":"2025-12","conditions":"Cannabis Abuse","enrollment":""},{"nctId":"NCT07434895","phase":"EARLY_PHASE1","title":"Repeated CBD Administration and Cannabis Outcomes","status":"NOT_YET_RECRUITING","sponsor":"Hannah Harris","startDate":"2026-03","conditions":"Cannabis, Abuse Liability, Experimental Pain in Healthy Human Participants","enrollment":23},{"nctId":"NCT07216690","phase":"PHASE2","title":"Pregnenolone as a Treatment for Cannabis Intoxication","status":"NOT_YET_RECRUITING","sponsor":"Johns Hopkins University","startDate":"2026-04-01","conditions":"Cannabis Intoxication","enrollment":20},{"nctId":"NCT06137365","phase":"PHASE2","title":"Cannabis for Obesity Trial","status":"NOT_YET_RECRUITING","sponsor":"Joshua A. 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