Testing effectiveness (Phase 2)Study completedNCT04036968What this trial is testingEnhancing Medication-based Analgesia in Humans- STUDY 2Who this might be right forPainCannabisOpioid Use Johns Hopkins University 31
Not applicableActive Not RecruitingNCT04567394What this trial is testingCannabis Use Disorder Treatment StudyWho this might be right forCannabis Use Disorder, MildCannabis Use Disorder, ModerateCannabis Use Disorder, Severe The University of Tennessee, Knoxville 1,077
Not applicableLooking for participantsNCT06395467What this trial is testingIntegrated Treatment for Enhancing Growth in Recovery During AdolescenceWho this might be right forAlcohol Use DisorderCannabis Use Disorder Massachusetts General Hospital 294
Not applicableStudy completedNCT01536912What this trial is testingMedical Marijuana Use in HIV+ Patients: Probability SurveyWho this might be right forHIV Positive Wayne State University 218
Not applicableStudy completedNCT01096303What this trial is testingEffects of Marijuana Used on Lung Function in Persons With Chronic Obstructive Pulmonary Disease (COPD)Who this might be right forChronic Obstructive Pulmonary Disease The University of Texas Health Science Center, Houston 200
Large-scale testing (Phase 3)Study completedNCT03055377What this trial is testingN-Acetylcysteine for Youth Cannabis Use DisorderWho this might be right forCannabis Use Disorder Medical University of South Carolina 192
Not applicableStudy completedNCT02801214What this trial is testingEmotional Brain Processes in Recreational Cannabis UsersWho this might be right forRecreational Cannabis Use University of Electronic Science and Technology of China 50
Very early researchUnknownNCT04106336What this trial is testingCortical Excitability and Role of rTMS in Cannabis Use DisorderWho this might be right forCannabis Use Disorder, Moderate Assiut University 60
Testing effectiveness (Phase 2)Study completedNCT00974376What this trial is testingGabapentin Treatment of Cannabis DependenceWho this might be right forCannabis DependenceCannabis WithdrawalCognitive Deficits The Scripps Research Institute 150
Not applicableWithdrawnNCT04266314What this trial is testingMaternal Marijuana Use and Fetal and Infant OutcomeWho this might be right forCannabis Use DisorderPregnancy Related Johns Hopkins University
Large-scale testing (Phase 3)Study completedNCT01109563What this trial is testingTeen Marijuana Check-UpWho this might be right forCannabis Use Disorder Denise Walker 252
Not applicableLooking for participantsNCT06418204What this trial is testingAssessing Benefits and Harms of Cannabis/Cannabinoid Use Among Cancer Patients Treated in Community Oncology ClinicsWho this might be right forBreast CarcinomaColorectal CarcinomaLung Non-Small Cell Carcinoma+2 more Wake Forest University Health Sciences 2,000
Not applicableUnknownNCT00957775What this trial is testingComputer-delivered Psychosocial Intervention for Adolescent Substance Use DisordersWho this might be right forSubstance-Related DisordersAlcohol-Related DisordersMarijuana Abuse National Development and Research Institutes, Inc. 84
Not applicableNot Yet RecruitingNCT06961877What this trial is testingSkills for Talking About Cannabis for Families of Young Adults With PsychosisWho this might be right forCaregiver BurdenCannabis UseExpressed Emotion+1 more University of Washington 40
Not applicableStudy completedNCT03845842What this trial is testingUsing Implementation Intentions to Reduce Cannabis UseWho this might be right forCannabis Use University of Manchester 311
Not applicableStudy completedNCT06919276What this trial is testingNicotine and Cannabis Vape Labeling Experiment - Spring 2025Who this might be right forVapingAdolescentElectronic Cigarette Use+2 more University of Southern California 3,048
Not applicableStudy completedNCT03538288What this trial is testingFeasibility Trial of rTMS for Cannabis Use DisorderWho this might be right forCannabis Medical University of South Carolina 3
Not applicableStudy completedNCT01536899What this trial is testingMedical Marijuana Use in HIV+ Patients Prospective Cohort StudyWho this might be right forHIV PositiveMarijuana Smoking Wayne State University 119
Not applicableStudy completedNCT04968275What this trial is testingA Cannabis Harm Reduction e-Intervention for Young Cannabis Users With Early PsychosisWho this might be right forPsychotic DisorderMarijuana UseYoung Adult Centre hospitalier de l'Université de Montréal (CHUM) 101
Early research (Phase 1)Looking for participantsNCT06920238What this trial is testingUse of a Generative AI (Gen-AI) Chatbot for Anxiety and Depression Among Persons With Cannabis UseWho this might be right forCannabis Use DisorderAnxietyDepression, Anxiety+1 more Trustees of Dartmouth College 15