| Completed | Mapping And Preventing Relapse Risk in Polydrug Users NCT07161986 | Institute of Psychology, Chinese Academy of Sciences | N/A |
| Recruiting | The Health of Women Monitored in the Addiction Department of the Strasbourg University Hospitals NCT07033728 | University Hospital, Strasbourg, France | — |
| Enrolling By Invitation | Project on tDCS Intervention to Enhance Advanced Social Cognitive Functions in Drug Rehabilitation Individuals NCT06888700 | Shaanxi Normal University | N/A |
| Completed | Personally-Tailored Opioid-overdose and Medication for Opioid Use Disorder (MOUD) Education (TOME) for Pregnan NCT06262347 | T. John Winhusen, PhD | N/A |
| Completed | The Cognitive Neural Mechanisms and Neuroregulatory Interventions of Realistic Creative Problem-solving Under NCT06917534 | Yifan Wang | N/A |
| Unknown | Construction of Early Warning Model for the New Psychoactive Substances Using in Adolescents NCT05958641 | Wei XIA, PhD | — |
| Unknown | Importance of Drug User Detection NCT05803044 | Assiut University | — |
| Unknown | Relationship of Addictions to Obesity, Physical Activity and Vascular Ageing in Young Adults NCT05866133 | Fundacion para la Investigacion y Formacion en Ciencias de la Salud | — |
| Recruiting | Long-Term Treatment of Opioid Use Disorder NCT05534815 | Northern Michigan University | N/A |
| Completed | Medication Treatment for Opioid Use Disorder in Expectant Mothers: Infant Neurodevelopmental Outcomes Sub-stud NCT03911739 | T. John Winhusen, PhD | — |
| Completed | Medication Treatment for Opioid Use Disorder in Expectant Mothers NCT03918850 | T. John Winhusen, PhD | Phase 3 |
| Completed | Medication Treatment for Opioid Use Disorder in Expectant Mothers: Conceptual Model Assessments Sub-study NCT03911466 | T. John Winhusen, PhD | — |
| Completed | Westlake Personalized Nutrition and Health Cohort for Drug Addicts NCT04105621 | Westlake University | — |
| Recruiting | Outcome Inference in the Sensory Preconditioning Task in Opioid-Use Disorder NCT03745339 | National Institute on Drug Abuse (NIDA) | — |
| Withdrawn | Clinical Trial of an Innovative Digital Therapeutic for Smoking Cessation With Biochemical Verification NCT05440721 | Click Therapeutics, Inc. | N/A |
| Completed | Innovative Digital Therapeutic for Smoking Cessation NCT03694327 | My Digital Study | N/A |
| Completed | CBT4CBT for Women in Residential Treatment for Substance Use Disorders NCT03678051 | Virginia Commonwealth University | N/A |
| Completed | AWAITS: A Web-based E-health Application for Active Illicit Opioid Users NCT03402672 | University of Cincinnati | N/A |
| Completed | RETAIN: Retaining Opioid Users Entering Medication Assisted Treatment and Encouraging HCV/HIV Testing NCT03411265 | University of Cincinnati | N/A |
| Completed | A Tailored, Peer-delivered Intervention to Reduce Recurring Opioid Overdoses NCT02922959 | University of Cincinnati | N/A |
| Unknown | Cohort Study on People Who Inject Drugs in Senegal NCT03459768 | French National Agency for Research on AIDS and Viral Hepatitis | — |
| Completed | Clinical Trial of Smoking Cessation Mobile Phone Program NCT02656745 | Click Therapeutics, Inc. | N/A |
| Completed | Homeless Female Offenders Returning to the Community NCT02258425 | University of California, Los Angeles | N/A |
| Completed | Evaluation of a Health Plan Initiative to Mitigate Chronic Opioid Therapy Risks NCT02224508 | Kaiser Permanente | — |
| Completed | Phone Interview to Prevent Recurring Opioid Overdoses NCT02282306 | University of Cincinnati | N/A |
| Completed | The Cedar Project: Impact of mHealth for HIV Prevention Among Young Indigenous People Who Use Illicit Drugs NCT02437123 | University of British Columbia | N/A |
| Completed | The Effects of Theta Burst Stimulation on the Brain Response to Drug and Alcohol Cues NCT02939352 | Medical University of South Carolina | EARLY_Phase 1 |
| Completed | A Randomized Double-Blind Controlled Trial of Creatine in Female Methamphetamine Users NCT02192931 | Perry Renshaw | Phase 4 |
| Completed | Bilateral Prefrontal Modulation in Crack-cocaine Addiction NCT02091167 | Federal University of Espirito Santo | Phase 2 |
| Completed | Bilateral Prefrontal Modulation in Alcoholism NCT02091284 | Federal University of Espirito Santo | N/A |
| Completed | Cannabidiol and Emotional Stimuli NCT02902081 | University of Chicago | N/A |
| Completed | The Role of Sleep in the Treatment of Cannabis Use Disorders NCT01685073 | Johns Hopkins University | Phase 2 / Phase 3 |
| Completed | Individual Differences in Reward and Impulse Control NCT01621607 | National Institute on Drug Abuse (NIDA) | — |
| Completed | Home-Based Program to Help Parents of Drug Abusing Adolescents NCT01591239 | Treatment Research Institute | N/A |
| Completed | Treating South African Pregnant Women for Methamphetamine NCT01386138 | RTI International | N/A |
| Completed | Impact of Online Patient Feedback (OQ) to Therapist NCT01891045 | Oslo University Hospital | N/A |
| Withdrawn | Effect of Varenicline on Tobacco Addiction and on Abstinence-induced Cognitive Impairment NCT01309685 | National Institute on Drug Abuse (NIDA) | Phase 1 |
| Completed | Family Training Program for Parents of Substance Using Adolescents NCT01344382 | Treatment Research Institute | Phase 1 / Phase 2 |
| Completed | Drug Effects on Preference and Reward NCT01722006 | University of Chicago | — |
| Completed | Effects of MDMA on Social and Emotional Processing NCT01849419 | University of Chicago | N/A |
| Completed | UCLA-Amity Parolee Health Promotion Study NCT01844414 | University of California, Los Angeles | N/A |
| Completed | Assessing Top Down and Bottom Up Attention Mechanisms in Smokers Using Nicotine Nasal Spray NCT01136642 | National Institute on Drug Abuse (NIDA) | Phase 1 |
| Completed | Comparing Acute and Continuous Drug Abuse Treatment: A Randomized Clinical Trial NCT01003496 | Wright State University | Phase 3 |
| Completed | Contingency Management for Cocaine Dependence: Cash Versus Vouchers NCT01366716 | Treatment Research Institute | N/A |
| Completed | HIV Infection and Tobacco Use Among Injection Drug Users in Baltimore, Maryland: A Pilot Study of Biomarkers NCT00491335 | National Cancer Institute (NCI) | — |
| Completed | Survey of Buprenorphine Use Among "Out of Care" Population in France (P04933)(COMPLETED) NCT00756353 | Indivior Inc. | — |
| Completed | Four Models of Telephone Support for Stimulant Recovery NCT00744068 | University of California, Los Angeles | N/A |
| Completed | CRAFT Behavior Therapy: Treatment Entry Component NCT00842036 | Treatment Research Institute | Phase 2 |
| Completed | Examining the Effect of the Nicotine Patch in Male and Female Smokers - 3 NCT00390559 | Virginia Commonwealth University | N/A |
| Completed | Integrating Mindfulness-Based Skills Training Into Brief Outpatient Treatment for Substance Abusing Youth NCT00244699 | Centre for Addiction and Mental Health | N/A |
| Completed | Treating the Partners of Drug Using Pregnant Women: Stage II NCT00496990 | Johns Hopkins University | Phase 2 / Phase 3 |
| Completed | Buprenorphine and Integrated HIV Care NCT00317460 | Yale University | Phase 4 |
| Completed | Integration of Buprenorphine Into HIV Clinical Settings - Primary Care Model (PCM) NCT00798538 | Yale University | Phase 4 |
| Completed | Recovery Housing For Drug Dependent Pregnant Women NCT00497302 | Johns Hopkins University | Phase 2 / Phase 3 |
| Completed | Integration of the Therapeutic Workplace in Drug Court NCT00607360 | National Institute on Drug Abuse (NIDA) | Phase 1 |
| Completed | Treatment of Hepatitis C in Psychiatric Patients NCT00751426 | Charite University, Berlin, Germany | — |