| Active Not Recruiting | Developing and Evaluating a Machine-Learning Opioid Overdose Prediction & Risk-Stratification Tool in Primary NCT06810076 | University of Pittsburgh | N/A |
| Recruiting | Developing a Smartphone Application to Support Veteran Opioid Use Disorder Treatment NCT06454903 | VA Office of Research and Development | N/A |
| Completed | Erector Spinae Plane Block Versus Serratus Anterior Plane Block NCT06862752 | Sisli Hamidiye Etfal Training and Research Hospital | N/A |
| Recruiting | Optimizing Chronic Pain Care With Mindfulness and Chronic Pain Management Visits NCT06387290 | University of Utah | Phase 3 |
| Completed | The Acupuncture for Pain, Opioid Use Disorder and Mood NCT06543355 | Albert Einstein College of Medicine | N/A |
| Recruiting | fMRI and Opioid Abstinence NCT06651333 | Yale University | — |
| Active Not Recruiting | Extended-release Buprenorphine Compared to Sublingual Buprenorphine in Rural Settings (RXR) NCT06023459 | Yih-Ing Hser | Phase 3 |
| Recruiting | Psilocybin in Cancer Pain Study NCT06001749 | Yvan Beaussant, MD, MSci | Phase 2 |
| Completed | Assessing the Efficacy of Self-Driven Repetitive Artmaking Practice NCT06554431 | Montefiore Medical Center | N/A |
| Recruiting | Clinical Trial on Deprescribing Associated With a Psychoeducational Program Using Virtual Reality for Patients NCT06964360 | Badalona Serveis Assistencials | N/A |
| Active Not Recruiting | OUD Smartphone Services NCT06134882 | Western Michigan University | N/A |
| Unknown | A4i-O: A Platform for Complex Behavioral Health to Address OUD NCT06215963 | Centre for Addiction and Mental Health | N/A |
| Withdrawn | Accelerated Intermittent Theta-Burst Stimulation for Opiate Use Disorder NCT03804619 | Stanford University | N/A |
| Active Not Recruiting | Tau PET Imaging in Opioid Use Disorder NCT05651516 | University of Pennsylvania | EARLY_Phase 1 |
| Enrolling By Invitation | Fatal Overdose Review Teams - Research to Enhance Surveillance Systems NCT06084221 | Indiana University | N/A |
| Active Not Recruiting | Cryoneurolysis Prior to Total Knee Arthroplasty NCT05840276 | Esbjerg Hospital - University Hospital of Southern Denmark | N/A |
| Completed | Deep Brain Stimulation as a Novel Treatment for Refractory Opioid Use Disorder NCT05903495 | West Virginia University | N/A |
| Unknown | Informational App Development for mHealth for Patient Self-Management of Opioid Use Disorder NCT05859035 | Biomedical Development Corporation | N/A |
| Recruiting | Neurocognitive Mechanisms Underlying Smartphone-Assisted Prevention of Relapse in Opioid Use Disorder NCT05336188 | University of Arkansas | Phase 2 |
| Recruiting | STTEPP: Safety, Tolerability and Dose Limiting Toxicity of Lacosamide in Patients With Painful Chronic Pancrea NCT05603702 | Indiana University | Phase 1 |
| Active Not Recruiting | Kentucky Outreach Service Kiosk (KyOSK): Reducing HIV, HCV, and Overdose Risk NCT05657106 | April M Young | N/A |
| Active Not Recruiting | Safe Prescription of Opioids in Primary Care NCT05577026 | Region Stockholm | N/A |
| Completed | Social Work Assistance and Stipends for Housing (SASH) NCT05803603 | University of Maryland, Baltimore | N/A |
| Completed | SIRI Checklist: An Integrated Hospital Model to Optimize HIV Prevention in Persons Who Inject Drugs NCT05480956 | University of Alabama at Birmingham | N/A |
| Active Not Recruiting | Developing a Tailored Stigma Reduction Intervention to Increase Buprenorphine Prescribing NCT05505227 | Ohio University | N/A |
| Completed | Improving Health and Employment Outcomes Through Workplace Opioid Policies NCT05387408 | Washington University School of Medicine | N/A |
| Withdrawn | Surviving Opioid Overdose With Naloxone Education and Resuscitation Trial (SOONER) NCT04740099 | Unity Health Toronto | N/A |
| Suspended | Patients' Attitudes Toward and Experiences With Buprenorphine Treatment NCT05121428 | Cambridge Health Alliance | — |
| Completed | Substance Use Treatment and Recovery Team NCT05086796 | Cedars-Sinai Medical Center | N/A |
| Completed | More Individualized Care: Assessment and Recovery Through Engagement NCT05122676 | Kaiser Permanente | N/A |
| Active Not Recruiting | Healthy Opioid Prescription Engagement NCT05141266 | Jerry Cochran | N/A |
| Completed | Use of a GLP-1R Agonist to Treat Opioid Use Disorder NCT04199728 | Milton S. Hershey Medical Center | Phase 1 / Phase 2 |
| Unknown | Pre-operative Education Modalities to Decrease Opioid Use NCT04933084 | Benaroya Research Institute | N/A |
| Terminated | Neurofeedback in Individuals With Substance Use Disorders NCT04188288 | Yale University | N/A |
| Unknown | EA for Protracted Withdrawal of OUD NCT04961294 | Chengdu University of Traditional Chinese Medicine | N/A |
| Completed | Medication Treatment for Opioid Use Disorder in Expectant Mothers: Infant Neurodevelopmental Outcomes Sub-stud NCT03911739 | T. John Winhusen, PhD | — |
| Completed | Preventing Parental Opioid and/or Methamphetamine Addiction Within DHS-Involved Families: PRE-FAIR NCT05380440 | Chestnut Health Systems | N/A |
| Terminated | Combining Neuro-Imaging and Non-Invasive Brain Stimulation for Clinical Intervention in Opioid Use Disorder NCT04495673 | University of Minnesota | N/A |
| Unknown | Healthy Adult Male Facial Skin Surface Lipid Pheromone p.o. to Treat Opioid Addiction NCT03394911 | Bubba Nicholson | Phase 3 |
| Completed | Substance Use Treatment and Recovery Team (START) NCT04314648 | RAND | N/A |
| Completed | An Innovative Intervention for OUD Treatment NCT04325659 | Johns Hopkins University | Phase 2 / Phase 3 |
| Completed | Neuroimaging and CBD for Opioid Use Disorder NCT04567784 | Yasmin Hurd | Phase 2 |
| Completed | Intrathecal Morphine for Robotic-assisted Laparoscopic Hysterectomy. NCT04675840 | Karlstad Central Hospital | N/A |
| Unknown | Does ESP Block Reduce Pain and Opiates Consumption After Surgery NCT05512897 | Michael Dubilet MD | N/A |
| Completed | Incentives to Decrease Opioid Use - Pilot NCT04235582 | Wake Forest University Health Sciences | N/A |
| Completed | Medication Treatment for Opioid Use Disorder in Expectant Mothers: Conceptual Model Assessments Sub-study NCT03911466 | T. John Winhusen, PhD | — |
| Completed | Medication Treatment for Opioid Use Disorder in Expectant Mothers NCT03918850 | T. John Winhusen, PhD | Phase 3 |
| Enrolling By Invitation | Alliances to Disseminate Addiction Prevention and Treatment (ADAPT) NCT04499079 | Indiana University | N/A |
| Completed | Evaluation of a Medication Disposal Program in Primary Care NCT04320004 | Geisinger Clinic | N/A |
| Completed | De-prescribing Program to Evaluate Falls in Older Adults NCT04272671 | University of North Carolina, Chapel Hill | N/A |
| Terminated | Slow-Release Oral Morphine for the Treatment of Opioid Use Disorder NCT03948464 | M. Eugenia Socias | Phase 3 |
| Completed | Prevalence of Chronic Pain and Its Risk Factors After a Surgical Intensive Care Unit Stay. Prospective Observa NCT04164342 | University Hospital, Angers | N/A |
| Withdrawn | Comparison of Three Opioid Detoxification Treatment Regimens NCT03678792 | University of Alabama at Birmingham | Phase 3 |
| Active Not Recruiting | Feasibility of Deep Brain Stimulation as a Novel Treatment for Refractory Opioid Use Disorder NCT03950492 | West Virginia University | N/A |
| Completed | The Kentucky Viral Hepatitis Treatment Study NCT03949764 | Jennifer Havens | Phase 4 |
| Completed | Treating Chronic Pain in Buprenorphine Patients in Primary Care Settings NCT03698669 | Boston University | N/A |
| Completed | Comparing State Payer Strategies to Prevent Unsafe Opioid Prescribing NCT03932799 | University of Washington | — |
| Completed | MOms in REcovery (MORE) Study: Defining Optimal Care NCT04251208 | Trustees of Dartmouth College | — |
| Completed | Youth Opioid Recovery Support: Improving Care Systems NCT04015115 | University of Maryland, Baltimore | N/A |
| Terminated | Imaging Biomarker for Addiction Treatment Outcome NCT03427424 | National Institute on Drug Abuse (NIDA) | — |
| Recruiting | Outcome Inference in the Sensory Preconditioning Task in Opioid-Use Disorder NCT03745339 | National Institute on Drug Abuse (NIDA) | — |
| Unknown | Development of an Algorithm That Predicts Hypoventilation Due to an Opioid Overdose NCT03845699 | RTM Vital Signs, LLC | — |
| Completed | Treatment of Opioid Use: Medication Adherence Therapy NCT03567356 | Potomac Health Foundations | N/A |
| Completed | Repeated-dose Behavioral Intervention to Reduce Opioid Overdose NCT03838510 | San Francisco Department of Public Health | N/A |
| Terminated | Recovery of Ventilation After General Anesthesia in Morbidly Obese Patients NCT03925610 | Stanford University | — |
| Completed | Optimizing Pregnancy and Treatment Interventions for Moms 2.0 NCT03833245 | University of Utah | N/A |
| Completed | Trial of Adherence App for Buprenorphine Treatment (TAAB) Study NCT03779997 | University of Washington | N/A |
| Completed | Evaluation of Pharmacy Students' Perception of Opioid / Opiate Dependence NCT03859778 | University Hospital, Clermont-Ferrand | — |
| Withdrawn | Adolescent Community Reinforcement Approach in Combination With Buprenorphine/Naloxone for Severe Opioid Use NCT03287180 | Emory University | N/A |
| Completed | The Navigator Trial NCT03684681 | Rhode Island Hospital | N/A |
| Completed | The OPT-IN Project NCT03526380 | University of Michigan | N/A |
| Completed | Modified ABC: A Home-based Parenting Program for Opioid-dependent Mothers and Their Infants NCT03891628 | University of Delaware | N/A |
| Completed | Buspirone for Opioid Tapering NCT03521960 | Johns Hopkins University | Phase 1 |
| Completed | Youth Opioid Recovery Support: A Developmentally-specific Intervention for Home Delivery of Extended Release N NCT03306368 | Potomac Health Foundations | N/A |
| Completed | Addressing Origins of the Opioid Epidemic by Improving Prescribing for Opioid-Naive Patients NCT03377855 | Weill Medical College of Cornell University | N/A |
| Completed | Assessment of the Satisfaction of Patient Undergoing Opioid Replacement Therapy Toward Their Management in Com NCT03961789 | University Hospital, Clermont-Ferrand | — |
| Completed | Harnessing Placebo Effects in Methadone Treatment NCT02941809 | University of Maryland, Baltimore | N/A |
| Terminated | Postoperative and Opioid Free Anesthesia NCT03316339 | Rennes University Hospital | Phase 3 |
| Completed | RETAIN: Retaining Opioid Users Entering Medication Assisted Treatment and Encouraging HCV/HIV Testing NCT03411265 | University of Cincinnati | N/A |
| Completed | A Prospective Investigation of the Risks of Opioid Misuse, Abuse, and Addiction Among Patients Treated With Op NCT02751762 | Member Companies of the Opioid PMR Consortium | — |
| Completed | Feasibility Study of Extended-release Naltrexone (Vivitrol) in Drug Court Settings NCT02978417 | Duke University | Phase 4 |
| Unknown | Mobile Intervention for Young Opioid Users NCT03610672 | National Development and Research Institutes, Inc. | N/A |
| Withdrawn | A Comparison of Plasma Concentrations of Hydrocodone and Acetaminophen After Administration of Different Amoun NCT03137030 | Grünenthal GmbH | Phase 1 |
| Withdrawn | A Comparison of Plasma Concentrations of Hydrocodone and Acetaminophen After Administration of a New and a Mar NCT03137017 | Grünenthal GmbH | Phase 1 |
| Completed | Prescribe to Save Lives NCT03175640 | Baystate Medical Center | N/A |
| Completed | Pharmacokinetic Evaluation of Nalmefene Administered Intranasally to Healthy Volunteers NCT03129347 | National Institute on Drug Abuse (NIDA) | Phase 1 |
| Completed | Computer-based Prescription Opioid Abuse Prevention for Adolescents NCT02737696 | Dartmouth-Hitchcock Medical Center | N/A |
| Completed | Addressing the Risks of Long-Term Opioid Therapy in Chronic Noncancer Pain NCT03161795 | Seoul National University | — |
| Completed | Opioid Dependence Treatment Therapies in Pregnancy NCT03098407 | University of Pittsburgh | N/A |
| Completed | Study of Yoga vs. Health Education for Chronic Pain in Persons Receiving Opioid Agonist Therapy NCT03022890 | Butler Hospital | N/A |
| Completed | A Tailored, Peer-delivered Intervention to Reduce Recurring Opioid Overdoses NCT02922959 | University of Cincinnati | N/A |
| Completed | Drug Interaction and Subjective Effects of Compounds for Opioid Use Disorder NCT03143855 | Virginia Commonwealth University | Phase 1 |
| Completed | Buprenorphine Group Medical Visits in Primary Care NCT02526212 | Montefiore Medical Center | Phase 3 |
| Completed | Administration of Acetazolamide to Prevent Remifentanil Induced Hyperalgesia NCT02992938 | University of Chile | Phase 4 |
| Terminated | Discontinuation vs Continuation of Long-term Opioid Therapy in Suboptimal and Optimal Responders With Chronic NCT02741076 | Member Companies of the Opioid PMR Consortium | Phase 4 |
| Terminated | BUPrenorphine Facilitated Access and Supportive Treatment --AIM 3 NCT02902835 | Montefiore Medical Center | N/A |
| Completed | Open-Label Treatment Extension Study NCT02896296 | Indivior Inc. | Phase 3 |
| Completed | Smoking Cessation & Opioid Dependence Treatment Integration NCT02854800 | West Virginia University | Phase 2 / Phase 3 |
| Completed | Pharmacokinetic Evaluation of Intranasal, Intramuscular, and Oral Naltrexone in Healthy Volunteers NCT02750748 | National Institute on Drug Abuse (NIDA) | Phase 1 |
| Unknown | Buccal Versus Injectable Naloxone: a Phase I Healthy Volunteer Study NCT02733822 | King's College London | Phase 1 |
| Completed | Conflict Between Maternal Autonomy and Child Health in Substance-use NCT02797990 | London School of Hygiene and Tropical Medicine | — |
| Completed | Naloxone Auto-injector as a Universal Precaution for Patients With Opioid Use Disorder NCT02669901 | University of New Mexico | N/A |
| Completed | Interferon-free Antiviral Treatment of Chronic Hepatitis C Virus Infection Among Opioid-substituted Patients NCT02969668 | Universitätsklinikum Hamburg-Eppendorf | — |
| Completed | Validation of PRISM-5-Op, Measure Of Addiction To Prescription Opioid Medication NCT02660619 | Member Companies of the Opioid PMR Consortium | — |
| Completed | Prevalence and Predictors of Prolonged Post-surgical Opioid Use: a Prospective Observational Cohort Study NCT02571400 | University of Notre Dame Australia | — |
| Completed | Study of the Treatment of Experimental Pain in Buprenorphine Maintained Persons With Chronic Musculoskeletal P NCT02372591 | Johns Hopkins University | Phase 1 |
| Completed | An Observational Study of Environmental and SocioEconomic Factors in Opioid Recovery NCT03604861 | Indivior Inc. | — |
| Completed | Safety and Tolerability Study of Depot Buprenorphine in Treatment Seeking Subjects With Opioid Use Disorder NCT02510014 | Indivior Inc. | Phase 3 |
| Terminated | Phase I Functional Magnetic Resonance Imaging (fMRI) Pharmacodynamic Studies of Compounds for Opioid Use Disor NCT03143543 | Virginia Commonwealth University | Phase 1 |
| Completed | An Observational Study to Develop Algorithms for Identifying Opioid Abuse and Addiction Based on Admin Claims NCT02667262 | Member Companies of the Opioid PMR Consortium | — |
| Completed | Study to Validate Coded Medical Terms Used to Identify Opioid-Related Overdose in Databases Used for PMR Study NCT02667197 | Member Companies of the Opioid PMR Consortium | — |
| Completed | A Quantitative Study to Assess the Construct Validity of the Prescription Opioid Misuse and Abuse Questionnair NCT02678507 | Member Companies of the Opioid PMR Consortium | — |
| Completed | Cross-Sectional Study to Define and Validate "Doctor/Pharmacy Shopping" as Outcomes Suggestive of Abuse and/or NCT02668549 | Member Companies of the Opioid PMR Consortium | — |
| Completed | Treatment Seeking Participants With Opioid Use Disorders Assessing Tolerability of Depot Injections of Bupreno NCT02357901 | Indivior Inc. | Phase 3 |
| Completed | A Qualitative Study to Assess the Content Validity of the Prescription Opioid Misuse and Abuse Questionnaire NCT02660606 | Member Companies of the Opioid PMR Consortium | — |
| Completed | Interim Buprenorphine: Leveraging Medication + Technology to Bridge Delays in Treatment Access NCT02360007 | University of Vermont Medical Center | Phase 1 / Phase 2 |
| Completed | Pupil Response in Patients on Opioids. NCT02247024 | Oslo University Hospital | — |
| Completed | A Survey to Eval the Relation Between Doctor/Pharmacy Shopping and Outcomes Suggestive of Misuse, Abuse and/or NCT02667158 | Member Companies of the Opioid PMR Consortium | — |
| Completed | Study to Eval Relation Btw Doctor/Pharmacy Shopping & Outcomes of Misuse, Diversion, Abuse, Addiction by Med R NCT02667210 | Member Companies of the Opioid PMR Consortium | — |
| Completed | Safety and Health Intervention Project NCT02152397 | University of Michigan | N/A |
| Completed | Pharmacokinetic Evaluation of Intranasal and Intramuscular Naloxone in Healthy Volunteers NCT02572089 | National Institute on Drug Abuse (NIDA) | Phase 1 |
| Completed | Phone Interview to Prevent Recurring Opioid Overdoses NCT02282306 | University of Cincinnati | N/A |
| Completed | Repeated-dose Brief Intervention to Reduce Overdose and Risk Behaviors Among Naloxone Recipients NCT02093559 | San Francisco Department of Public Health | N/A |
| Completed | Influence of Dexmedetomidine and Lidocaine on Opioid Consumption in Laparoscopic Intestine Resection NCT02616523 | University Medical Centre Ljubljana | Phase 4 |
| Completed | Extended-Release Naltrexone Opioid Treatment at Jail Re-Entry NCT01999946 | NYU Langone Health | Phase 4 |
| Completed | Transforming Opioid Prescribing in Primary Care NCT01909076 | Boston Medical Center | N/A |
| Completed | Clomiphene Citrate for the Treatment of Low Testosterone Associated With Chronic Opioid Pain Medication Admini NCT01880086 | Weill Medical College of Cornell University | Phase 2 |
| Completed | Study to Assess Efficacy and Safety of BNX Sublingual Tablets for the Induction of Treatment of Opioid Depende NCT01848054 | Orexo AB | 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 | Safety & Prevention Outcomes Study NCT01894087 | University of Michigan | N/A |
| Completed | Abuse Potential of Intranasal VYCAVERT Tablets (Hydrocodone Bitartrate/Acetaminophen) in Recreational Opioid U NCT01759446 | Acura Pharmaceuticals Inc. | Phase 2 |
| Completed | Depot Naltrexone Mechanism of Action in Heroin Dependent Patients Using fMRI and SPECT NCT01471145 | Academisch Medisch Centrum - Universiteit van Amsterdam (AMC-UvA) | Phase 4 |
| Completed | Neurocognitive Effects of Opiate Agonist Treatment NCT01733693 | Albert Einstein College of Medicine | Phase 4 |
| Completed | Variation of COMT Val158Met Polymorphism Between COM-ON Patients and METHADOSE Patients NCT01570699 | Assistance Publique - Hôpitaux de Paris | — |
| Terminated | Comparative Evaluation of PUSPENs and C&Cs NCT02698098 | University of Malaya | — |
| Terminated | Pioglitazone to Treat Opioid Withdrawal Symptoms NCT01517165 | National Institute on Drug Abuse (NIDA) | Phase 1 |
| Completed | Studies of Opioid Seeking Behavior: Yohimbine and Hydrocortisone Effects NCT01536925 | Wayne State University | — |
| Completed | A Comparison of PR Oxycodone/Naloxone and PR Oxycodone After Cardiac Surgery NCT01374763 | Kati Järvelä | Phase 4 |
| Completed | Drug-Drug Interaction Study Between Telaprevir and Buprenorphine NCT01275599 | Vertex Pharmaceuticals Incorporated | Phase 1 |
| Completed | Medications Development for Drug Abuse Disorders NCT01188421 | Johns Hopkins University | Phase 1 / Phase 2 |
| Completed | Medication-Assisted Treatment Implementation in Community Correctional Environments (MATICCE) NCT01344122 | Rhode Island Hospital | N/A |
| Completed | Abuse Potential Assessment of Intranasally Administered EMBEDA Compared To Morphine Sulfate Controlled Release NCT01595867 | Pfizer | Phase 1 |
| Completed | A Clinical Study To Characterize The Pharmacokinetics And The Effects Of Food On Oxycodone In Healthy Voluntee NCT01530542 | Pfizer | Phase 1 |
| Completed | Study of Computer-Based Treatment for Drug Dependence NCT01315184 | Yale University | Phase 2 |
| Unknown | Trial of Methadone Maintenance Versus Methadone Detox in Jail NCT01874964 | The Miriam Hospital | N/A |
| Completed | Neurocognitive Effects of Buprenorphine Among HIV+ and HIV-Opioid Users NCT01108679 | Albert Einstein College of Medicine | — |
| Completed | Methylnaltrexone for Opioid-induced Constipation in Cancer Patients NCT01004393 | University of Vermont | Phase 2 |
| Completed | Rapid Opiate Detoxification and Naltrexone Induction Using Buprenorphine - 2 NCT00000299 | University of California, Los Angeles | Phase 2 |
| Completed | Phase IIa Study of AV411, a Glial Activation Inhibitor, for Opioid Withdrawal NCT00723177 | New York State Psychiatric Institute | Phase 2 |
| Completed | Aripiprazole for Prevention of Relapse to Cocaine Use in Methadone-Maintenance Patients NCT00780702 | National Institute on Drug Abuse (NIDA) | Phase 1 |
| Terminated | Drug Treatment Combined With Drug and Risk Reduction Counseling to Prevent of HIV Infection and Death Among In NCT00270257 | National Institute of Allergy and Infectious Diseases (NIAID) | Phase 3 |
| Completed | Acceptability and Safety of Switching From Subutex or Other Opioid Drug Dependence Therapy to Suboxone (NIS P0 NCT00725608 | Indivior Inc. | — |
| Completed | Treatment Study: Reducing Cocaine/Heroin Abuse With SR-Amphetamine and Buprenorphine (ARC) NCT00698737 | Wayne State University | — |
| Completed | Treatment of Opioid Dependent Patients With Suboxone: Acceptability & Safety Data From Real Life Scenario (Stu NCT00723749 | Indivior Inc. | — |
| Completed | Effects of Stress and Other Factors on Opiate Drug Choice. NCT00684840 | Wayne State University | — |
| Completed | Induction of Opioid-Dependent Individuals Onto Buprenorphine and Buprenorphine/Naloxone NCT00637000 | Indivior Inc. | Phase 2 |
| Completed | Safety and Tolerability of Buprenorphine/Naloxone Film Strips NCT00640835 | Indivior Inc. | Phase 2 |
| Unknown | Ability of Aprepitant to Block Opioid Reward in Non-Dependent Opiate Abusers NCT00726960 | Karolinska University Hospital | Phase 1 |
| Completed | Buprenorphine Maintenance Treatment of Opioid Dependence in Primary Care: A Randomized Clinical Trial NCT00684554 | New York State Psychiatric Institute | Phase 2 / Phase 3 |
| Completed | Abuse Liability of Suboxone Versus Subutex NCT00710385 | New York State Psychiatric Institute | Phase 3 |
| Completed | Study to Evaluate the Subjective Effects of PTI-801 in Non-Physically Dependent Subjects With a History of Dru NCT00734461 | Pain Therapeutics | Phase 2 |
| Completed | Hepatitis C Among Opioid Addicts in Opioid Maintenance Treatment in Zurich, Switzerland NCT00473993 | Seidenberg, Arztpraxis A., M.D. | — |
| Completed | Effects of Environmental Factors on Opiate Drug Choice in Opioid Dependent Individuals. NCT00608504 | Wayne State University | — |
| Suspended | The Effects of Pharmacotherapy on Brain Mechanisms Underlying Cocaine Dependence. NCT00396734 | Hadassah Medical Organization | N/A |
| Completed | Buprenorphine's Dose Response Curve NCT00460239 | Johns Hopkins University | Phase 2 |
| Completed | Sustained Release d-Amphetamine & Buprenorphine on Drug Seeking Behavior in Opioid & Cocaine Dependent Individ NCT00429767 | Wayne State University | — |
| Completed | Dextromethorphan, Gabapentin, and Oxycodone to Treat Opioid-Induced Hyperalgesia NCT00218374 | National Institute on Drug Abuse (NIDA) | N/A |
| Completed | Effectiveness of Opiate Replacement Therapy Administered Prior to Release From a Correctional Facility - 1 NCT00142935 | The Miriam Hospital | N/A |
| Completed | Bioequivalency Study of Buprenorphine Hydrochloride 8 mg Tablet Under Fasted Conditions NCT00992095 | Roxane Laboratories | N/A |
| Completed | Buprenorphine HIV Care Integration Project NCT00348868 | University of Miami | N/A |
| Completed | Addiction Treatment in Russia: Oral vs. Naltrexone Implant NCT00218426 | University of Pennsylvania | Phase 2 / Phase 3 |
| Completed | Study of Buprenorphine Maintenance Treatment for Opioid Dependence in Primary Care NCT00471042 | New York State Psychiatric Institute | — |
| Completed | Prescription Opioid Addiction Treatment Study (POATS) NCT00316277 | Mclean Hospital | Phase 3 |
| Completed | Assessment of Tramadol as a Treatment for Opioid Addiction NCT00301210 | Johns Hopkins University | Phase 1 / Phase 2 |
| Completed | Interactive Voice Response (IVR) for Methadone Patients NCT00237406 | Butler Hospital | — |
| Completed | Employment-based Reinforcement of Naltrexone Ingestion and Abstinence NCT00149669 | Johns Hopkins University | N/A |
| Completed | Clonidine for Relapse Prevention in Buprenorphine-Maintenance Patients NCT00295308 | National Institute on Drug Abuse (NIDA) | Phase 1 |
| Completed | Effects of Post-Session Supplemental Hydromorphone on Drug Seeking Behavior in Opioid Dependent Individuals NCT00218361 | Wayne State University | — |
| Unknown | Buprenorphine and Integrated HIV Care Evaluation NCT00124358 | The New York Academy of Medicine | Phase 4 |
| Completed | RCT Comparing Methadone and Buprenorphine in Pregnant Women NCT00271219 | Johns Hopkins University | Phase 3 |
| Completed | Project BEST: Buprenorphine Entry Into Substance Abuse Treatment NCT02583243 | Yale University | — |
| Completed | Addition of Naltrexone to Methadone Taper NCT00135759 | National Institute on Drug Abuse (NIDA) | Phase 2 |
| Completed | Effectiveness of Lofexidine to Prevent Stress-Related Opiate Relapse During Naltrexone Treatment - 1 NCT00142909 | Yale University | Phase 2 |
| Completed | Tramadol to Reduce Opioid Withdrawal Symptoms NCT00142896 | National Institute on Drug Abuse (NIDA) | Phase 2 |
| Completed | Prescription Opioid Effects in Abusers Versus Non-Abusers NCT00158184 | New York State Psychiatric Institute | Phase 2 |
| Terminated | Abuse Potential of Buprenorphine/Naloxone NCT00149539 | National Institute on Drug Abuse (NIDA) | Phase 2 |
| Completed | Buprenorphine as a Treatment for Individuals Dependent on Analgesic Opioids NCT00218101 | National Institute on Drug Abuse (NIDA) | Phase 2 |
| Terminated | Opioid Agonist and Antagonist Effects on Opioid Dependence NCT00142727 | National Institute on Drug Abuse (NIDA) | Phase 2 |
| Completed | Effects of Pre-Session Supplemental Hydromorphone on Drug Seeking Behavior in Opioid Dependent Individuals NCT00218309 | National Institute on Drug Abuse (NIDA) | — |
| Completed | Buprenorphine/Naloxone - Facilitated Rehabilitation for Opioid Dependent Adolescents - 1 NCT00078130 | University of Pennsylvania | Phase 3 |
| Completed | Suboxone: (Buprenorphine/Naloxone) Comparison of Two Taper Schedules - 1 NCT00078117 | University of California, Los Angeles | Phase 3 |
| Completed | The Therapeutic Workplace Initiation Study NCT00249470 | Johns Hopkins University | N/A |
| Completed | Comparison of Buprenorphine and Methadone - 3 NCT00000334 | National Institute on Drug Abuse (NIDA) | Phase 2 |
| Withdrawn | Buprenorphine/Naloxone Treatment for Opioid Dependence-Experiment II-3 - 6 NCT00000331 | University of Colorado, Denver | Phase 2 |
| Terminated | Effects of Buprenorphine/Naloxone in Treating Opioid Dependent Individuals Who Are Maintained on Methadone NCT00000243 | National Institute on Drug Abuse (NIDA) | N/A |
| Completed | Fetal Neurobehavioral Development in Methadone Maintained Pregnancies NCT00067184 | Johns Hopkins University | — |
| Completed | Treatment of Opioid/Heroin Dependence: Comparison of Three Medication Dosing Regimens NCT00218127 | National Institute on Drug Abuse (NIDA) | Phase 2 |
| Completed | Lofexidine for Opiate Withdrawal - 1 NCT00032942 | National Institute on Drug Abuse (NIDA) | Phase 3 |
| Completed | Fluoxetine to Reduce Cocaine Use in Cocaine and Opioid Addicts NCT00142779 | National Institute on Drug Abuse (NIDA) | N/A |
| Completed | Disulfiram for Treating Cocaine Dependence in Individuals Maintained on Methadone NCT00218608 | University of Arkansas | Phase 2 |
| Terminated | Assessing Abuse Potential of Parenteral Buprenorphine/Naloxone in Non-Dependent Opioid Abusers NCT00134875 | National Institute of Allergy and Infectious Diseases (NIAID) | N/A |
| Completed | Blockade Efficacy of Buprenorphine/Naloxone For Opioid Dependence NCT00134888 | National Institute on Drug Abuse (NIDA) | N/A |
| Completed | Methadone Levels in Breast Milk of Women Taking Methadone for Opiate Addiction - 2 NCT00218010 | National Institute on Drug Abuse (NIDA) | — |
| Completed | Counseling Conditions for Buprenorphine in a Primary Care Clinic - 1 NCT00023283 | Yale University | Phase 2 |
| Withdrawn | Buprenorphine/Naloxone Treatment for Opioid Dependence-Experiment II-2 - 5 NCT00000330 | University of Colorado, Denver | Phase 2 |
| Completed | HIV Counseling Intervention for Methadone-Maintained Patients - 2 NCT00061100 | New York State Psychiatric Institute | Phase 1 |
| Withdrawn | Buprenorphine/Naloxone Treatment for Opioid Dependence-Experiment II-1 - 4 NCT00000329 | University of Colorado, Denver | Phase 2 |
| Completed | Combined Buprenorphine and Behavioral Treatment With and Without Contingent Reinforcement on Opioid and Cocain NCT00000240 | University of Vermont | Phase 2 |
| Completed | Effect Of Case Management Following Discharge From Methadone Treatment NCT00018226 | US Department of Veterans Affairs | Phase 2 |
| Completed | Treatment of Adult Attention Deficit Hyperactivity Disorder (ADHD) in Methadone Patients - 1 NCT00061087 | New York State Psychiatric Institute | Phase 2 / Phase 3 |
| Completed | Effects of Alcohol History on Effects of Sevoflurane and Nitrous Oxide - 13 NCT00000261 | University of Chicago | Phase 2 |
| Completed | Buprenorphine Formulation Comparison: Sublingual Tablet vs. Solution - 1 NCT00000320 | National Institute on Drug Abuse (NIDA) | Phase 1 / Phase 2 |
| Completed | Subjective/Psychomotor/ Effects of Combined Alcohol & Nitrous Oxide - 16 NCT00000264 | University of Chicago | N/A |
| Completed | Temporal Discounting Delayed Outcomes on Opioid-Dependent Outpatients - 20 NCT00000238 | National Institute on Drug Abuse (NIDA) | Phase 2 |
| Withdrawn | Buprenorphine/Naloxone Treatment for Opioid Dependence-Experiment III) - 3 NCT00000328 | University of Colorado, Denver | Phase 2 |
| Completed | Subjective Effects of Nitrous Oxide in Dental Patients - 17 NCT00000265 | University of Chicago | — |
| Completed | Effects of Behavioral Contingencies on Effects of Nitrous Oxide - 12 NCT00000260 | University of Chicago | N/A |
| Withdrawn | Buprenorphine/Naloxone Treatment for Opioid Dependence-Experiment I(2) - 2 NCT00000327 | University of Colorado, Denver | Phase 2 |
| Completed | Buprenorphine Detoxification - BBDVI - 19 NCT00000237 | National Institute on Drug Abuse (NIDA) | Phase 2 |
| Withdrawn | Buprenorphine/Naloxone Treatment for Opioid Dependence-Experiment 1 - 1 NCT00000326 | University of Colorado, Denver | Phase 2 |
| Completed | Effects of Combined Alcohol and Nitrous Oxide Intake - 15 NCT00000263 | University of Chicago | N/A |
| Completed | Abuse Potential of Buprenorphine and Naloxone in Non-Dependent Opioid Users NCT00158236 | National Institute on Drug Abuse (NIDA) | N/A |
| Completed | Effects of Dextromethorphan on Opioid Tolerance in Methadone Patients - 1 NCT00000352 | National Institute on Drug Abuse (NIDA) | Phase 2 |
| Completed | Buprenorphine and Naloxone Combination Study - 10 NCT00015288 | National Institute on Drug Abuse (NIDA) | Phase 1 |
| Completed | Effects of Combined Sevoflurane and Nitrous Oxide Inhalation - 14 NCT00000262 | University of Chicago | N/A |
| Completed | Buprenorphine/Naloxone for Opiate-Dependence Treatment - 1 NCT00015028 | National Institute on Drug Abuse (NIDA) | Phase 2 |
| Completed | Buprenorphine Dose Escalation Trial for Treatment of Non-Dependent Opiate Users - 2 NCT00015041 | National Institute on Drug Abuse (NIDA) | Phase 1 |
| Completed | Trial of Buprenorphine/Naloxone for Opiate Dependence - 2 NCT00000353 | National Institute on Drug Abuse (NIDA) | Phase 2 |
| Completed | Evaluation of Liquid vs. Tablet Buprenorphine - 6 NCT00000341 | National Institute on Drug Abuse (NIDA) | Phase 2 |
| Completed | Sevoflurane vs Nitrous Oxide Inhalation at Subanesthetic Concentrations - 11 NCT00000259 | University of Chicago | N/A |
| Completed | Effects of Buprenorphine/Naloxone Administered in Different Ways For Treating Opioid Dependence NCT00134914 | National Institute on Drug Abuse (NIDA) | N/A |
| Completed | Evaluation of Lofexidine for Treatment of Opioid Withdrawal - 3 NCT00000354 | National Institute on Drug Abuse (NIDA) | Phase 1 |
| Completed | Buprenorphine Maintenance Dose Schedule and Treatment Setting - 2 NCT00000319 | Yale University | Phase 2 |
| Completed | Role of Instructions in Nitrous Oxide Effects and Choice - 10 NCT00000258 | University of Chicago | N/A |
| Completed | Evaluation of Lofexidine for Treatment of Opiate Withdrawal - 10 NCT00000345 | National Institute on Drug Abuse (NIDA) | Phase 1 |
| Completed | Buprenorphine Detox With Two Types of Treatment. BBD II - 11 NCT00000229 | University of Vermont | Phase 2 |
| Completed | Activity Monitoring Assessment of Opiate Withdrawal - 4 NCT00000335 | National Institute on Drug Abuse (NIDA) | Phase 2 |
| Completed | Effects of Alcohol History on Effects of Nitrous Oxide - 9 NCT00000257 | University of Chicago | N/A |
| Completed | A Laboratory Model for Heroin Abuse Medications - 8 NCT00000273 | New York State Psychiatric Institute | Phase 2 |
| Completed | Buprenorphine Combination Tablet Feasibility - 1 NCT00000298 | National Institute on Drug Abuse (NIDA) | Phase 2 |
| Completed | Reinforcing Effects of Brief Exposures to Nitrous Oxide - 8 NCT00000256 | University of Chicago | N/A |
| Completed | Differential Acute Tolerance Development to Effects of Nitrous Oxide - 7 NCT00000255 | University of Chicago | Phase 2 |
| Completed | Feasibility Study of Take-Home LAAM Medication - 3 NCT00000300 | University of California, Los Angeles | Phase 4 |
| Completed | Combining Behavioral Treatment With Agonist Maintenance - 1 NCT00000311 | Yale University | Phase 3 |
| Completed | Isoflurane at Subanesthetic Concentrations - 6 NCT00000254 | University of Chicago | Phase 2 |
| Completed | Buprenorphine Detoxification With Two Types of Treatment. BBD III - 12 NCT00000230 | University of Vermont | Phase 2 |
| Completed | Buprenorphine Maintenance Dose Schedule and Treatment Setting - 1 NCT00000318 | National Institute on Drug Abuse (NIDA) | Phase 2 |
| Completed | Effects of Nitrous Oxide: A Dose-Response Analysis - 5 NCT00000253 | University of Chicago | N/A |
| Completed | Effects of Buprenorphine and Naloxone in Opiate Addicts - 4 NCT00000355 | National Institute on Drug Abuse (NIDA) | Phase 1 |
| Completed | Alternate-Day Buprenorphine Administration. Phase VII - 8 NCT00000226 | National Institute on Drug Abuse (NIDA) | Phase 2 |
| Completed | Novel Medications for Opiate Detoxification - 4 NCT00000279 | Yale University | Phase 2 |
| Completed | Dextroamphetamine as Adjunct in Cocaine/Opiate Dependent Patients - 3 NCT00000306 | National Institute on Drug Abuse (NIDA) | Phase 2 |
| Completed | Effects of Dynorphin 1-13 on Heroin Addiction - 1 NCT00000244 | University of Minnesota | Phase 2 |
| Completed | Buprenorphine Detox With Two Types of Treatment. BBD I - 10 NCT00000228 | National Institute on Drug Abuse (NIDA) | Phase 2 |
| Completed | Alternate-Day Buprenorphine Administration. Phase VIII - 9 NCT00000227 | University of Vermont | Phase 2 |
| Completed | Lack of Acute Tolerance Development to Effects of Nitrous Oxide - 4 NCT00000252 | University of Chicago | Phase 2 |
| Completed | Effects of Subanesthetic Concentrations of Isoflurane/Nitrous Oxide - 3 NCT00000251 | University of Chicago | Phase 2 |
| Completed | Cold Water Immersion Modulates Reinforcing Effects of Nitrous Oxide - 2 NCT00000250 | University of Chicago | Phase 2 |
| Completed | Effects of Subanesthetic Concentrations of Nitrous Oxide - 1 NCT00000249 | University of Chicago | Phase 2 |
| Completed | Alternate-Day Buprenorphine Administration. Phase IV - 5 NCT00000223 | National Institute on Drug Abuse (NIDA) | Phase 2 |
| Completed | Alternate Day Buprenorphine Administration, Phase X - 15 NCT00000233 | National Institute on Drug Abuse (NIDA) | Phase 2 |
| Completed | Alternate-Day Buprenorphine. Phase V - 6 NCT00000224 | National Institute on Drug Abuse (NIDA) | Phase 1 |
| Withdrawn | Neurobiology of Opioid Dependence: 3 - 3 NCT00000194 | Yale University | Phase 2 |
| Withdrawn | Neurobiology of Opioid Dependence: 5 - 5 NCT00000196 | Yale University | Phase 2 |
| Withdrawn | Neurobiology of Opioid Dependence: 2 - 2 NCT00000193 | Yale University | Phase 2 |
| Withdrawn | Neurobiology of Opioid Dependence: 1 - 1 NCT00000192 | Yale University | Phase 2 |
| Withdrawn | Neurobiology of Opioid Dependence: 4 - 4 NCT00000195 | Yale University | Phase 2 |
| Completed | Alternate-Day Buprenorphine Administration. Phase VI - 7 NCT00000225 | National Institute on Drug Abuse (NIDA) | Phase 2 |
| Completed | Buprenorphine Dosing Interval - 5 NCT00000209 | National Institute on Drug Abuse (NIDA) | Phase 2 |
| Completed | Alternate-Day Buprenorphine Administration. Phase II - 4 NCT00000222 | National Institute on Drug Abuse (NIDA) | Phase 1 |
| Completed | Buprenorphine Maintenance for Opiate Dependence - 6 NCT00000357 | National Institute on Drug Abuse (NIDA) | Phase 2 |
| Completed | Multicenter Clinical Trial of Buprenorphine - 3 NCT00000207 | University of California, Los Angeles | Phase 3 |
| Completed | Alternate-Day Buprenorphine Administration. Phase I - 3 NCT00000221 | National Institute on Drug Abuse (NIDA) | Phase 1 |
| Completed | Alternate Day Buprenorphine Administration, Phase IX - 14 NCT00000232 | University of Vermont | Phase 2 |
| Completed | Methadone/Buprenorphine Cross-Over Study - 4 NCT00000208 | National Institute on Drug Abuse (NIDA) | Phase 2 |
| Completed | Buprenorphine Detoxification With Two Types of Treatment. BBD IV - 13 NCT00000231 | National Institute on Drug Abuse (NIDA) | Phase 2 |
| Completed | Buprenorphine Dose Alteration Study - 1 NCT00000219 | University of Vermont | Phase 1 |
| Completed | Gradual Vs. Rapid Buprenorphine Detoxification - 2 NCT00000220 | National Institute on Drug Abuse (NIDA) | Phase 1 |
| Completed | Evaluation of L-alpha-acetylmethadol (LAAM) in Methadone Patients - 5 NCT00000356 | National Institute on Drug Abuse (NIDA) | Phase 2 |
| Completed | Clinical Rescue Protocol - 2 NCT00000206 | University of California, Los Angeles | Phase 2 |
| Completed | Buprenorphine Maintenance Protocol - 1 NCT00000205 | University of California, Los Angeles | Phase 3 |
| Completed | Buprenorphine Maintenance for Opioid Addicts - 1 NCT00000202 | Yale University | Phase 2 |
| Completed | Buprenorphine Maintenance for Opioid Addicts - 3 NCT00000204 | Yale University | Phase 2 |
| Completed | Buprenorphine Maintenance for Opioid Addicts - 2 NCT00000203 | Yale University | Phase 2 |
| Completed | Alternate Day Buprenorphine Administration, Phase XII - 17 NCT00000235 | National Institute on Drug Abuse (NIDA) | Phase 2 |
| Completed | Alternate Day Buprenorphine Administration, Phase XI - 16 NCT00000234 | University of Vermont | Phase 2 |
| Unknown | Surveillance Monitoring of Opioid Abuse in Poison and Drug Treatment Centers NCT02871232 | ER/LA Opioid REMS Program Companies (RPC) | — |
| Unknown | Evaluation of Changes in Prescribing Behavior of ER/LA Opioid Prescribers NCT02920762 | ER/LA Opioid REMS Program Companies (RPC) | — |
| Completed | Buprenorphine Pharmacology Related to Addiction Treatment - 21 NCT00000239 | National Institute on Drug Abuse (NIDA) | Phase 2 |
| Completed | Buprenorphine Maintenance for Cocaine Abusing Opioid Addicts - 1 NCT00000216 | Yale University | Phase 3 |
| Unknown | ER/LA Opioid Surveillance for Emergency Department Visits and Hospitalizations for Overdose and Poisoning NCT02866266 | ER/LA Opioid REMS Program Companies (RPC) | — |
| Completed | Evaluation of Lofexidine for Treatment of Opioid Withdrawal - 7 NCT00000358 | National Institute on Drug Abuse (NIDA) | Phase 1 |
| Unknown | Monitoring Patterns of Prescribing to Identify Changes in Access to ER/LA Opioid Analgesics NCT02920775 | ER/LA Opioid REMS Program Companies (RPC) | — |
| Completed | Buprenorphine/Naloxone for Treatment of Opiate Dependence - 9 NCT00000344 | National Institute on Drug Abuse (NIDA) | Phase 2 |
| Unknown | ER/LA Opioid Analgesics - Surveillance Monitoring of State Medical Examiner Databases NCT02897414 | ER/LA Opioid REMS Program Companies (RPC) | — |
| Unknown | Evaluation of Drug Utilization Patterns for Extended Release/Long Acting Opioids and Comparator Products NCT02925806 | ER/LA Opioid REMS Program Companies (RPC) | — |
| Completed | Buprenorphine Pharmacology Related to Addiction Treatment - 18 NCT00000236 | National Institute on Drug Abuse (NIDA) | Phase 2 |