| Not Yet Recruiting | VK4-116 Phase I Study With Food-Effect NCT06808932 | National Institute on Drug Abuse (NIDA) | Phase 1 |
| Not Yet Recruiting | Assessing the Acceptability, Feasibility, Effectiveness and Cost-effectiveness of LADB NCT06129916 | PATH | — |
| Recruiting | Standardized Natural Psilocybin-assisted Psychotherapy for Tapering of Opioid Medication NCT05585229 | University of British Columbia | Phase 2 |
| Recruiting | Better Options for Chronic Cancer Pain NCT06574009 | VA Office of Research and Development | Phase 4 |
| Recruiting | Buprenorphine as a Post-operative Analgesic in Opioid-Naive Patients After Ankle Fracture Surgery NCT06949826 | Jenna-Leigh Wilson | Phase 4 |
| Recruiting | The MOUD Plus Pilot: Counseling and Peer Support to Support Retention for Medically Complex Patients With Opio NCT06837662 | Oregon Health and Science University | N/A |
| Recruiting | fMRI and Opioid Abstinence NCT06651333 | Yale University | — |
| Recruiting | A Clinical Trial to Assess Pharmacokinetic Profiles, Safety and Tolerability of IVL3004 and IVL4002 in Healthy NCT05620940 | Inventage Lab., Inc. | Phase 1 |
| Not Yet Recruiting | Gut Microbiota Dysbiosis in Opioid Use Disorders: Implications for Clinical Symptoms and Relapse Rate. NCT06231849 | Assiut University | — |
| Unknown | A Project to Test the Efficacy and Safety of An Innovative Treatment for Opiate Use Disorders. NCT05995873 | MindLight, LLC | N/A |
| Recruiting | DE-eSCALation of Opioids Post-surgical dischargE NCT06396663 | University of Kent | N/A |
| Withdrawn | OLP to Manage Pain in TJA: A Feasibility Study NCT04883983 | University of Alabama at Birmingham | EARLY_Phase 1 |
| Unknown | Exploratory Dose Ranging Study Assessing APH-1501 for the Treatment of Opioid Addiction NCT03813095 | Aphios | Phase 2 |
| Suspended | Measuring Acute Drug Demand in Humans NCT05829655 | University of Maryland, Baltimore | EARLY_Phase 1 |
| Terminated | The Effects of Daily Anti-inflammatory Supplementation on Foundation Pain Index Scores in Chronic Opiate Patie NCT05896878 | Hudson Medical | N/A |
| Recruiting | STTEPP: Safety, Tolerability and Dose Limiting Toxicity of Lacosamide in Patients With Painful Chronic Pancrea NCT05603702 | Indiana University | Phase 1 |
| Terminated | Novel Induction to Buprenorphine/Naloxone NCT05644587 | Bicycle Health | Phase 4 |
| Unknown | Effects on Mortality and Clinical Course of a Patient's Choice Model for Opioid Maintenance Treatment for Opio NCT05678036 | Region Skane | — |
| Terminated | Brain Mechanisms of Pharmacotherapy in Opioid Use Disorder NCT04454411 | University of Pennsylvania | Phase 2 |
| Unknown | Return to Work - Will Brief Intervention Reduce Opioid-induced Back Pain? NCT05437861 | University Hospital, Akershus | N/A |
| Completed | Feasibility and Preliminary Efficacy of an Opioid Stewardship Program in Hospitalized Patients With Chronic Pa NCT05370326 | Yale University | N/A |
| Withdrawn | Can Simplified and More Detailed Instructions Affect Post-Operative Narcotic Consumption NCT03534102 | Brigham and Women's Hospital | Phase 4 |
| Completed | Efficiency And Quality In Post-Surgical Pain Therapy After Discharge NCT05221866 | University of Nebraska | N/A |
| Completed | Friendship Bench Adaptation to Improve Mental Health & HIV Care Engagement Outcomes Among PLWH and PWID in Vie NCT04790201 | University of North Carolina, Chapel Hill | N/A |
| Unknown | Prevention of Opioid Use Disorder After Surgery NCT04394559 | Brigham and Women's Hospital | N/A |
| Active Not Recruiting | Comparing Home, Office, and Telehealth Induction for Medication Assisted Treatment for Opioid Use Disorder NCT04664062 | University of Colorado, Denver | N/A |
| Unknown | Impact of a Behavioral Tele-health Program on the Quality of Recovery for Patients Undergoing Total Joint Repl NCT05367050 | Lucid Lane, Inc | N/A |
| Recruiting | Young Houston Emergency Opioid Engagement System NCT04811014 | The University of Texas Health Science Center, Houston | Phase 4 |
| Completed | Comparing Two Training Methods for Opioid Wizard NCT04867382 | HealthPartners Institute | N/A |
| Completed | HOPE Consortium Trial to Reduce Pain and Opioid Use in Hemodialysis NCT04571619 | National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) | Phase 2 |
| Active Not Recruiting | Project 1 Aim 2, Adaptations of the Brain in Chronic Pain With Opioid Exposure NCT05463367 | Northwestern University | Phase 2 |
| Unknown | Healthy Adult Male Facial Skin Surface Lipid Pheromone p.o. to Treat Opioid Addiction NCT03394911 | Bubba Nicholson | Phase 3 |
| Completed | An Innovative Intervention for OUD Treatment NCT04325659 | Johns Hopkins University | Phase 2 / Phase 3 |
| Completed | Preliminary Efficacy and Safety of Ibogaine in the Treatment of Methadone Detoxification NCT04003948 | International Center for Ethnobotanical Education, Research, and Service | Phase 2 |
| Terminated | Collaborative Care for Opioid Dependence And Pain Pilot Study NCT04121546 | Indiana University | N/A |
| Completed | SMART Effectiveness Trial NCT04464421 | Karen Derefinko, PhD | N/A |
| Completed | INDV-2000 First in Human NCT04413552 | Indivior Inc. | Phase 1 |
| Unknown | Intervening With Opioid-Dependent MothersMothers and Infants NCT04454645 | University of Delaware | N/A |
| Terminated | The Analgesic Efficacy of Continuous Sub-fascial Bupivacaine Infusion and Lidocaine Patches in Post-cesarean P NCT04033562 | WellSpan Health | Phase 4 |
| Completed | Evaluation of Pain Neuroscience Education for Patients Who Experience Chronic Pain With Concurrent Opioid Depe NCT06442306 | Wichita State University | N/A |
| Terminated | Perioperative Ketamine in Opioid-Tolerant Patients Undergoing Lumbar Spine Surgery NCT04220489 | Jacques E. Chelly | Phase 2 |
| Completed | Efficacy And Safety Of An Innovative Treatment Of Opiate Use Disorders NCT04340622 | MindLight, LLC | N/A |
| Completed | Re-entry XR-NTX for Rural Individuals With Opioid Use Disorder NCT03447743 | Michele Staton | EARLY_Phase 1 |
| Unknown | Does Early Administration of Ultrasound Guided Regional Anesthesia for Long Bone Fractures Effect Long Term Pa NCT04189523 | Wayne State University | N/A |
| Recruiting | Neuromodulation and Cognitive Training in Opioid Use Disorder NCT03773523 | University of Minnesota | N/A |
| Completed | Medical Management of Sleep Disturbance During Opioid Tapering NCT03789214 | Johns Hopkins University | Phase 2 |
| Unknown | Utilizing Helpline for Opioid Dependence Treatment NCT03969238 | University of Virginia | — |
| Completed | XRB vs. SLB in Jail and at Re-entry: Pilot, Proof of Concept NCT03604159 | NYU Langone Health | Phase 4 |
| Terminated | A Multimodal Enhanced Recovery Program in Anorectal Surgery NCT03992079 | Columbia University | N/A |
| Completed | tDCS to Decrease Opioid Relapse (UG3) NCT03842137 | Butler Hospital | N/A |
| Unknown | Community Studies of Long Acting Buprenorphine (CoLAB) NCT03809143 | The University of New South Wales | Phase 3 |
| Completed | Treatment of Opioid Use: Medication Adherence Therapy NCT03567356 | Potomac Health Foundations | N/A |
| Terminated | Reducing the Abuse of Opioids in Drug Users NCT03837860 | The University of Texas Health Science Center at San Antonio | EARLY_Phase 1 |
| Completed | Remote Observed Dosing of Suboxone to Improve Clinical Practice NCT03769025 | University of Pennsylvania | Phase 1 / Phase 2 |
| Withdrawn | Needle-X: Usability Testing of a Smartphone Application NCT03665298 | NYU Langone Health | N/A |
| Completed | A Pragmatic Trial of the Consult for Addiction Treatment and Care in Hospitals (CATCH) Model for Engaging Pati NCT03611335 | NYU Langone Health | — |
| Completed | The Navigator Trial NCT03684681 | Rhode Island Hospital | N/A |
| Unknown | Reducing Opioid Use for Chronic Pain Patients Following Surgery NCT03675386 | University Health Network, Toronto | N/A |
| Unknown | A Study of Thienorphine Hydrochloride Tablets in Relapse Prevention Treatment of Opioid Dependence NCT03656120 | Wei Hao | Phase 2 |
| Completed | A Randomized, Double-Blind, Single-Center Clinical Study on the Efficacy of Naltrexone Implant in Antagonizing NCT07014644 | Shenzhen Sciencare Medical Industries Co., Ltd. | Phase 2 |
| Completed | Gabapentin Regimens and Their Effects on Opioid Consumption NCT03334903 | Brigham and Women's Hospital | Phase 4 |
| Completed | PG and PK of Oxycodone to Personalize Post-op Pain Management Following Surgery in Children NCT03495388 | Senthil Sadhasivam | — |
| Completed | The Impact of Methadone Maintenance Therapy on Food Reward Processing in Opioid Dependence NCT03575273 | Johns Hopkins University | N/A |
| Unknown | Switch to Genvoya Followed by HCV Therapy With Epclusa Followed by Simplification of HIV Therapy With Biktarvy NCT03549312 | Saskatchewan Health Authority - Regina Area | Phase 4 |
| Suspended | Physical Activity as Adjunct Treatment for Opioid Substitution Therapy NCT04496934 | Haukeland University Hospital | N/A |
| Withdrawn | Safe Return and Disposal of Unused Opioids NCT03352479 | Baylor College of Medicine | N/A |
| Active Not Recruiting | Facilitating Rapid Naltrexone Initiation NCT03345173 | New York State Psychiatric Institute | Phase 3 |
| Completed | Trial of Injected Liposomal Bupivacaine vs Bupivacaine Infusion After Surgical Stabilization of Rib Fractures NCT03305666 | Denver Health and Hospital Authority | Phase 4 |
| Withdrawn | Naloxone to TReatment Entry in the Emergency Setting NCT03368794 | Anders C Håkansson | N/A |
| Completed | Addiction, HIV and Tuberculosis in Malaysian Criminal Justice Settings NCT03089983 | Yale University | N/A |
| Completed | Meditation and Opioid Consumption in Total Joint Replacement Patients Undergo Primary Total Hip and Knee Repla NCT05669066 | Beth Israel Deaconess Medical Center | N/A |
| Completed | The Life STORRIED Study NCT03134092 | University of Pennsylvania | N/A |
| Completed | Comparing Opium Tincture (OT) With Methadone for Medication-assisted Treatment of Opioid Use Disorder NCT02502175 | University of British Columbia | Phase 3 |
| Completed | Developing rTMS Treatment Strategies for Pain in Opiate Dependence NCT03576781 | Medical University of South Carolina | EARLY_Phase 1 |
| Unknown | Liposomal Bupivacaine for Pain Control Following Thoracic Surgery. NCT03036085 | Massachusetts General Hospital | Phase 2 / Phase 3 |
| Completed | Drug Interaction and Subjective Effects of Compounds for Opioid Use Disorder NCT03143855 | Virginia Commonwealth University | Phase 1 |
| Terminated | Effects of Glucocorticoids on Craving During Detoxification Treatment of Heroin and/or Stimulants NCT02935101 | Prof. Dominique de Quervain, MD | Phase 2 |
| Unknown | Probuphine Innovations for Clinical Effectiveness (PRINCE) NCT02896660 | Healthcare Innovation Technology Lab | N/A |
| Completed | Using Artificial Intelligence To Monitor Medication Adherence in Opioid Replacement Therapy NCT02243670 | AiCure | N/A |
| Completed | Change the Cycle: An RCT to Prevent Injection Initiation NCT02774954 | University of Southern California | N/A |
| Completed | A Naturalistic Study of Adolescents and Young Adults in Treatment for Opioid Dependence NCT02718352 | Yale University | — |
| Completed | Comparing Interventions for Opioid Dependent Patients Presenting in Medical Emergency Departments NCT02586896 | NYU Langone Health | N/A |
| Completed | Oxytocin Treatment of Opioid Dependence NCT02548728 | University of North Carolina, Chapel Hill | Phase 1 / Phase 2 |
| Completed | Medication-Assisted Treatment for Youth With Substance Use Disorders NCT02593474 | New York State Psychiatric Institute | Phase 1 |
| Completed | Improving Effective Contraceptive Use Among Opioid-maintained Women: Stage II NCT02411357 | University of Vermont | N/A |
| Completed | The Effects of Minocycline in Opioid-maintained Patients NCT02359006 | Yale University | N/A |
| Completed | Buprenorphine Treatment for Opioid Dependence NCT02187198 | Yale University | Phase 3 |
| Unknown | Study of Integrating Antiretroviral Therapy With Methadone Treatment for People Who Inject Drugs NCT02167425 | Pangaea Global AIDS Foundation | — |
| Completed | Treatment Seeking Participants With Opioid Use Disorders Assessing Tolerability of Depot Injections of Bupreno NCT02357901 | Indivior Inc. | Phase 3 |
| Completed | Glutamatergic Modulation to Facilitate Naltrexone Initiation in Opioid Dependence NCT02437344 | New York State Psychiatric Institute | Phase 2 |
| Completed | Phone Interview to Prevent Recurring Opioid Overdoses NCT02282306 | University of Cincinnati | N/A |
| Completed | Buprenorphine/Naloxone Stabilization and Induction Onto Injection Naltrexone NCT02294253 | New York State Psychiatric Institute | Phase 2 / Phase 3 |
| Completed | Desvenlafaxine in Opioid-Dependent Patients NCT02200406 | Centre hospitalier de l'Université de Montréal (CHUM) | Phase 4 |
| Completed | A Study of Adult Outpatients With Opioid Dependence Transitioned From a Daily SL Buprenorphine to Probuphine® NCT02180659 | Titan Pharmaceuticals | Phase 3 |
| Completed | Increasing Patient Knowledge of the Signs of Opioid Overdose and Naloxone in a Suburban Treatment Program NCT02120612 | Edward Hospital | — |
| Completed | Using mHealth to Aid Opioid Medication Adherence Pilot Study NCT02017041 | Care Team Solutions | — |
| Completed | Usability of Zubsolv Sublingual Tablets 5.7/1.4 to Suboxone Sublingual Film 8/2 In Buprenorphine/Naloxone Trea NCT02038790 | Indivior Inc. | Phase 4 |
| Completed | Improving Buprenorphine Detoxification Outcomes With Isradipine NCT01895270 | University of Arkansas | Phase 1 / Phase 2 |
| Completed | Study of the Treatment of Experimental Pain in Opioid Dependent Persons on Methadone or Buprenorphine Maintena NCT01642030 | Johns Hopkins University | Phase 1 |
| Completed | Efficacy, Safety and Dose-Response Study Followed by Open-Label Study of Lofexidine Treatment of Opioid Withdr NCT01863186 | USWM, LLC (dba US WorldMeds) | Phase 3 |
| Completed | A Randomized, 4-sequence, 2-period, Double-blind, Placebo Controlled Study With a DSM-IV-TR Diagnosis of Cocai NCT01846481 | Indivior Inc. | Phase 2 |
| Completed | Dane County Drug Court Study for Addicted Offenders NCT01843751 | University of Wisconsin, Madison | Phase 3 |
| Completed | Pharmacokinetic & Pharmacodynamic Interaction of Lofexidine and Buprenorphine in Buprenorphine Maintained Pati NCT01820442 | USWM, LLC (dba US WorldMeds) | Phase 1 |
| Completed | Pilot Test of a Community-based Buprenorphine Treatment Intervention NCT01761110 | Albert Einstein College of Medicine | N/A |
| Completed | Effects of Ibudilast on Oxycodone Self-administration in Opioid Abusers NCT01740414 | New York State Psychiatric Institute | Phase 2 |
| Completed | Acute Effects of Cortisol on Heroin Craving in Opioid Dependence (Ghost-Basel) NCT01718964 | Prof. Dominique de Quervain, MD | Phase 2 |
| Completed | Naltrexone vs Buprenorphine-Naloxone for Opioid Dependence in Norway NCT01717963 | University of Oslo | Phase 3 |
| Completed | An Open Label Study To Assess The Safety And Tolerability Of BEMA® Buprenorphine NX In Opioid Dependent Subjec NCT01666119 | BioDelivery Sciences International | Phase 2 |
| Completed | Main Study of Lofexidine and Methadone Pharmacodynamic Interaction in Methadone Maintained Patients NCT01650649 | USWM, LLC (dba US WorldMeds) | Phase 1 |
| Completed | Methadone Oxytocin Option NCT01728909 | University of California, San Francisco | EARLY_Phase 1 |
| Completed | The Separate and Combined Effects of Vivitrol and Opiate Abstinence Reinforcement in the Treatment of Opioid D NCT01556425 | Johns Hopkins University | Phase 2 |
| Completed | Computer-based Cognitive Behavioral Therapy for Risky Behaviors in Opioid Dependent Patients NCT01645033 | Yale University | N/A |
| Completed | Distress Tolerance and Buprenorphine NCT01556087 | Butler Hospital | Phase 3 |
| Completed | Pilot Study of Lofexidine and Methadone Pharmacodynamic Interaction in Methadone Maintained Patients NCT01558934 | USWM, LLC (dba US WorldMeds) | Phase 1 |
| Unknown | An Assessment of Fentanyl Dose Requirements in Opioid-maintained Individuals NCT01358500 | University of Adelaide | N/A |
| Completed | Aprepitant Effects in Intravenous Heroin Dependence NCT01527994 | NYU Langone Health | Phase 1 |
| Completed | Study to Assess Longer-term Opioid Medication Effectiveness (SALOME) NCT01447212 | University of British Columbia | Phase 3 |
| Completed | Biomarkers of Injectable Extended Release Naltrexone Treatment NCT02324725 | University of Pennsylvania | Phase 4 |
| Completed | Improving Effective Contraceptive Use Among Opioid-maintained Women NCT01425060 | University of Vermont | Phase 1 |
| Completed | ALK21-025: Vivitrol's Cost and Treatment Outcomes Registry NCT01422837 | Alkermes, Inc. | — |
| Completed | Completion of OST - a Prospective Study NCT01722435 | Universitätsklinikum Hamburg-Eppendorf | — |
| Completed | Pilot Study of Varenicline to Treat Opioid Dependence NCT01436474 | Mayo Clinic | Phase 1 |
| Completed | Improved Strategies for Outpatient Opioid Detoxification NCT01377610 | New York State Psychiatric Institute | Phase 1 |
| Completed | Naltrexone for Opioid Dependent Released Human Immunodeficiency Virus Positive (HIV+) Criminal Justice Populat NCT01246401 | Yale University | Phase 1 / Phase 2 |
| Completed | KCNH2 Polymorphisms on the QTc Interval in Kelantanese Malays Patients Receiving Methadone Maintenance Therapy NCT03603158 | Universiti Sains Malaysia | — |
| Completed | A Study of VIVITROL in the Prevention of Re-arrest and Re-incarceration NCT01453374 | Alkermes, Inc. | Phase 4 |
| Completed | Medications Development for Drug Abuse Disorders NCT01188421 | Johns Hopkins University | Phase 1 / Phase 2 |
| Completed | Effects of Gabapentin Versus Placebo on Buprenorphine Detoxification of Opioid-dependent Individuals NCT01262092 | University of Arkansas | Phase 2 |
| Completed | Starting Treatment With Agonist Replacement Therapies Follow-up Study NCT01592461 | University of California, Los Angeles | — |
| Completed | A Within Subject Comparison of Opioid Withdrawal in Opioid Dependent Individuals NCT01136356 | Johns Hopkins University | Phase 1 / Phase 2 |
| Completed | Dronabinol Naltrexone Treatment for Opioid Dependence NCT01024335 | New York State Psychiatric Institute | Phase 2 / Phase 3 |
| Completed | Memantine-enhanced Buprenorphine Treatment for Opioid-dependent Young Adults NCT01052662 | University of Massachusetts, Worcester | Phase 2 / Phase 3 |
| Completed | Treatment for Opioid Dependent Offenders NCT01082679 | University of Wisconsin, Madison | Phase 2 / Phase 3 |
| Terminated | A Bioavailability and Safety Study of Probuphine Versus Sublingual Buprenorphine in Patients With Opioid Depen NCT00768482 | Titan Pharmaceuticals | Phase 3 |
| Completed | Drug Discrimination in Methadone-Maintained Humans Study 2 NCT00733239 | University of Arkansas | Phase 1 |
| Completed | The Prevalence of HIV Drug Resistance and Transmission Risk in Opioid Agonist Treatment NCT00857350 | Yale University | — |
| Completed | Methadone Maintenance & HIV Risk in Ukraine NCT00351026 | University of Pennsylvania | Phase 3 |
| Completed | Memantine as a Supplement to Naltrexone in Treating Heroin Dependence NCT00476242 | New York State Psychiatric Institute | Phase 2 / Phase 3 |
| Completed | Relapse Prevention to Reduce HIV Among Women Prisoners NCT00763958 | University of Alabama at Birmingham | Phase 4 |
| Completed | Extension to Safety and Efficacy of Probuphine in the Treatment of Opioid Dependence NCT00630201 | Titan Pharmaceuticals | Phase 3 |
| Completed | Levetiracetam (Keppra) Tolerability in Cocaine Abusing Methadone-maintained Patients. NCT00593125 | Yale University | Phase 2 |
| Completed | Gabapentin Treatment of Benzodiazepine Abuse in Methadone Maintenance Patients NCT00420771 | New York State Psychiatric Institute | Phase 2 |
| Completed | Safety and Efficacy of Probuphine in the Treatment of Opioid Dependence NCT00447564 | Titan Pharmaceuticals | Phase 3 |
| Completed | Testing a Community-Friendly Risk Reduction Intervention for Injection Drug Users NCT01741350 | University of Connecticut | N/A |
| Completed | Integrating Buprenorphine Into the SFGH AIDS Program NCT00263458 | University of California, San Francisco | Phase 4 |
| Completed | Prescription Opioid Abuse Among Pain Patients: Predictors of Relapse NCT01967641 | New York State Psychiatric Institute | Phase 2 |
| Completed | Depot Naltrexone Treatment of Opioid Dependent Parolees NCT00756990 | University of Pennsylvania | N/A |
| Completed | FMRI of Stress and Addictive Disorders NCT01558973 | Yale University | — |
| Completed | RCT Comparing Methadone and Buprenorphine in Pregnant Women NCT00271219 | Johns Hopkins University | Phase 3 |
| Completed | Memantine and Naltrexone Treatment for Opioid Dependence NCT00125515 | New York State Psychiatric Institute | Phase 2 |
| Completed | Pharmacogenetics of Disulfiram for Cocaine NCT00149630 | Baylor College of Medicine | Phase 2 |
| Completed | The German Project of Heroin Assisted Treatment of Opiate Dependent Patients NCT00268814 | Universitätsklinikum Hamburg-Eppendorf | Phase 3 |
| Completed | Buprenorphine/Naloxone in the Treatment of Heroin Dependence - 14 NCT00015340 | National Institute on Drug Abuse (NIDA) | Phase 4 |
| Completed | Combined Behavioral and Pharmacologic Treatment of Polydrug Abuse NCT00292123 | National Institute on Drug Abuse (NIDA) | Phase 1 |
| Completed | The Efficacy of Methadyl Acetate (LAAM) and Contingency Management Procedures for Treating Dual Opioid and Coc NCT00158288 | National Institute on Drug Abuse (NIDA) | Phase 2 |
| Completed | Employment-based Reinforcement to Motivate Drug Abstinence in the Treatment of Drug Addiction. - 2 NCT00249457 | Johns Hopkins University | N/A |
| Completed | Opioid Maintenance Medications Comparison Study NCT00344812 | Johns Hopkins University | Phase 2 |
| Withdrawn | Evaluation of BEMA® Buprenorphine NX for Buprenorphine Induction of Opioid Dependent Subjects NCT01713803 | BioDelivery Sciences International | Phase 3 |
| Withdrawn | The Safety of Using Buprenorphine With Naloxone in a Buccal Film to Initiate Treatment of Opioid Dependent Sub NCT02516436 | BioDelivery Sciences International | Phase 3 |