Drug dependence
MONDO:0005303Drug dependence - replaced the term "drug addiction" and is defined as a state, psychic and sometimes also physical, resulting from the interaction between a living organism and a drug, characterized by behavioral and other responses that always include a compulsion to take the drug on a continuous or periodic basis in order to experience its psychic effects, and sometimes to avoid the discomfort of its absence. Tolerance may or may not be present. A person may be dependent on more than one drug.
Also known as: chemical dependence
1220 clinical trials for this condition and its sub-types.
Follow this condition — get notified about new trialsSub-types
Broader categories
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Peer support may boost HIV treatment success in people who inject drugs
Disease control TerminatedThis study tests whether adding peer-based counseling to standard HIV and opioid treatment helps people who inject drugs stay on their medications and achieve viral suppression. Participants receive either enhanced usual care or extra support from a peer counselor. The goal is to…
Phase: NA • Sponsor: Yale University • Aim: Disease control
Last updated Jul 01, 2026 00:00 UTC
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Alcohol-Dependence drug studied in DUI offenders – study halted early
Disease control TerminatedThis study tested a drug called acamprosate in adults with alcohol dependence who were part of a DUI court program. The goal was to see if the medication could help them stay sober and reduce cravings. Only 4 people enrolled before the study was stopped, so results are very limit…
Phase: NA • Sponsor: University of Oklahoma • Aim: Disease control
Last updated Jun 27, 2026 12:04 UTC
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HIV and opioid treatment study halted early – what we know
Disease control TerminatedThis study looked at whether different medications for opioid use disorder (methadone, buprenorphine/naloxone, or naltrexone) could reduce immune system inflammation in people with HIV. Researchers measured changes in blood markers of immune activation over 24 weeks. The trial wa…
Phase: PHASE2 • Sponsor: University of Pennsylvania • Aim: Disease control
Last updated Jun 27, 2026 12:04 UTC
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Flavored vapes tested as smoking cessation aid – but study ends early
Disease control TerminatedThis study aimed to see if giving smokers access to different e-cigarette flavors (menthol, non-tobacco, or tobacco) helps them stop smoking regular cigarettes. Over 600 adult smokers were assigned to different flavor groups and tracked for 13 weeks. However, the trial was termin…
Phase: NA • Sponsor: RAI Services Company • Aim: Disease control
Last updated Jun 27, 2026 09:08 UTC
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Can a smartphone app with rewards boost opioid treatment success after an emergency?
Disease control TerminatedThis study tested a mobile app that uses rewards to encourage people with opioid use disorder to start and stick with medication-assisted treatment after an emergency room visit. 41 adults from two hospitals were given access to the app for 12 weeks. The goal was to see if the ap…
Phase: NA • Sponsor: Q2i, LLC • Aim: Disease control
Last updated Jun 27, 2026 09:02 UTC
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New program aims to stop opioid misuse in hispanic teens before it starts
Prevention TerminatedThis study tested educational videos for Hispanic/Latinx families with teens aged 15-17 to prevent opioid misuse and overdose. The program focused on safe storage, opioid knowledge, and changing attitudes. Only 6 families took part before the study ended early.
Phase: NA • Sponsor: The University of Texas Health Science Center, Houston • Aim: Prevention
Last updated Jun 27, 2026 12:04 UTC
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New approach aims to boost HIV prevention in LGBTQ+ individuals struggling with addiction
Prevention TerminatedThis study tested a program to help HIV-negative transgender women and men who have sex with men who also have a substance use disorder stick with PrEP, a daily pill or shot that prevents HIV. Participants received counseling and text support, with extra help for those who strugg…
Phase: NA • Sponsor: Friends Research Institute, Inc. • Aim: Prevention
Last updated Jun 27, 2026 09:04 UTC
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Mental health sessions may boost vaccine uptake in latinx communities
Prevention TerminatedThis study tested whether adding vaccine discussions to routine behavioral health visits could reduce hesitancy and increase COVID-19 and flu shots among Latinx adults with mental illness. Clinicians used motivational interviewing and could offer a warm handoff to a nurse for vac…
Phase: NA • Sponsor: Boston College • Aim: Prevention
Last updated Jun 26, 2026 17:00 UTC
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New opioid withdrawal drug shows promise in tiny early trial
Symptom relief TerminatedThis early study tested a new drug called TRV734 in 5 adults with opioid-use disorder who were already on methadone. The goal was to see if TRV734 could relieve withdrawal symptoms with fewer side effects than a standard opioid like oxycodone. Participants stayed in a residential…
Phase: PHASE2 • Sponsor: National Institute on Drug Abuse (NIDA) • Aim: Symptom relief
Last updated Jun 27, 2026 13:00 UTC
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Magic mushroom compound tested for meth addiction – but trial stopped early
Symptom relief TerminatedThis study tested whether psilocybin, the active ingredient in magic mushrooms, is safe and feasible for people with methamphetamine use disorder. Only 5 participants were enrolled, and the trial was terminated early, so the results are very limited. The goal was to see if psiloc…
Phase: PHASE1 • Sponsor: University of Wisconsin, Madison • Aim: Symptom relief
Last updated Jun 27, 2026 12:31 UTC
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New hope for pain relief without addiction: buprenorphine study
Symptom relief TerminatedThis study looked at whether buprenorphine can effectively treat chronic pain in people who are dependent on opioid painkillers, while also reducing withdrawal symptoms and improving quality of life. It involved 4 adults with opioid dependence and chronic pain. The approach was t…
Phase: PHASE4 • Sponsor: Theresa Jacob, PhD, MPH • Aim: Symptom relief
Last updated Jun 27, 2026 12:30 UTC
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New approach lets patients start addiction treatment without first going through withdrawal
Symptom relief TerminatedThis study tested a new method for starting buprenorphine (a medication for opioid use disorder) in hospitalized adults who also have chronic pain. Instead of requiring patients to stop all other opioids and go through withdrawal first, the new method starts with very low doses o…
Phase: PHASE4 • Sponsor: Montefiore Medical Center • Aim: Symptom relief
Last updated Jun 27, 2026 12:30 UTC
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Methadone tested to shorten time on breathing machines in ICU
Symptom relief TerminatedThis study tested whether giving methadone to ICU patients on breathing machines could help them get off the ventilator faster. Patients who needed strong painkillers were given either methadone or a placebo. The trial was stopped early and only included 9 people, so no firm conc…
Phase: PHASE4 • Sponsor: Henry Ford Health System • Aim: Symptom relief
Last updated Jun 27, 2026 08:02 UTC
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Can a simple device ease opioid withdrawal?
Symptom relief TerminatedThis study tested a device called Bridge to see if it could reduce symptoms of opioid withdrawal. Researchers compared it to a fake device in 13 adults with opioid use disorder. The study was stopped early, so results are limited.
Phase: NA • Sponsor: Masimo Corporation • Aim: Symptom relief
Last updated Jun 27, 2026 07:55 UTC
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Can a restless legs drug ease opioid withdrawal?
Symptom relief TerminatedThis study tested whether pramipexole (Mirapex), a drug for restless legs syndrome, could also reduce symptoms of opioid withdrawal in people with opioid use disorder. The trial planned to enroll 75 adults but was terminated early. Researchers measured changes in restless legs se…
Phase: PHASE2, PHASE3 • Sponsor: Massachusetts General Hospital • Aim: Symptom relief
Last updated Jun 27, 2026 07:51 UTC
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Alcohol and cirrhosis: can a quick test spot brain problems?
Knowledge-focused TerminatedThis study aimed to see if a short test called BEARNI could detect alcohol-related cognitive impairments (like memory and thinking problems) in people with alcoholic cirrhosis. The researchers planned to enroll patients with cirrhosis, but the study was stopped early after only o…
Sponsor: Centre Hospitalier Universitaire, Amiens • Aim: Knowledge-focused
Last updated Jun 27, 2026 14:02 UTC
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Mental health study aims to uncover Long-Term heart risks
Knowledge-focused TerminatedThis study followed 167 adults with mental health issues like anxiety, depression, or sleep problems who visited their primary care doctor. Researchers used health conversations and a blood test to track lifestyle changes and heart disease risks over up to 20 years. The goal was …
Phase: NA • Sponsor: Region Skane • Aim: Knowledge-focused
Last updated Jun 27, 2026 12:28 UTC
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Brain zapping study targets smoking in schizophrenia
Knowledge-focused TerminatedThis study tested whether a non-invasive brain stimulation technique called deep rTMS could change brain activity and reduce smoking in people with schizophrenia. Researchers used brain scans to measure changes in brain connections and smoking behavior. The study was small and en…
Phase: NA • Sponsor: Stony Brook University • Aim: Knowledge-focused
Last updated Jun 27, 2026 12:23 UTC
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Opioid choice study halted early after enrolling just 2 people
Knowledge-focused TerminatedThis study aimed to understand how withdrawal symptoms and drug-related cues influence decision-making in people with opioid use disorder. Participants completed choice tasks to see if they preferred high-probability rewards. The study was terminated early and only enrolled 2 par…
Phase: EARLY_PHASE1 • Sponsor: Joshua A. Lile, Ph.D. • Aim: Knowledge-focused
Last updated Jun 27, 2026 12:01 UTC
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New program aims to help moms after preterm birth
Knowledge-focused TerminatedThis study tested a care coordination and motivational interviewing program for women who recently had a preterm birth. The goal was to see if the program was feasible and acceptable to participants. Only 13 women enrolled before the study was terminated, so the findings are very…
Phase: NA • Sponsor: Children's Hospital of Philadelphia • Aim: Knowledge-focused
Last updated Jun 27, 2026 09:00 UTC
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Study on cannabis addiction drug halted early
Knowledge-focused TerminatedThis study aimed to see if taking the experimental drug AEF0117 with food changes how much gets into the bloodstream. It involved 22 healthy adults aged 18 to 55. The trial was terminated early, so results are limited.
Phase: PHASE1 • Sponsor: Aelis Farma • Aim: Knowledge-focused
Last updated Jun 27, 2026 08:13 UTC
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App that reads your mood and fights cravings put to the test
Knowledge-focused TerminatedThis study tested a smartphone app designed to help people with opioid addiction by sending helpful messages at just the right moment. Nine adults who used heroin or other opioids carried a phone that beeped four times a day to ask about their mood and activities, then showed a m…
Phase: NA • Sponsor: National Institute on Drug Abuse (NIDA) • Aim: Knowledge-focused
Last updated Jun 26, 2026 15:17 UTC