Substance-related disorder

This study tests whether a virtual session with a peer recovery coach can help incarcerated adults with substance use disorders connect to addiction treatment and recovery resources. About 550 participants in jail will either get the coaching or just standard information. Researc…

This study tests whether a non-invasive brain stimulation technique called rTMS, given before cognitive-behavioral therapy, can help adults with cocaine use disorder quit. Thirty participants will receive either real or sham rTMS daily for 3 weeks, followed by 12 weeks of weekly …

This study investigates whether a mobile app called reSET can help men who have sex with men, are living with HIV, and have a stimulant use disorder reduce their drug use and keep their HIV under control. Participants use the app for 12 weeks, completing modules on topics like ma…

This study tests whether suvorexant, a medicine used for sleep problems, can help people with alcohol use disorder (AUD) by changing how the brain's dopamine system works. About 180 adults (ages 18-75) with AUD and healthy volunteers will take either suvorexant or a placebo daily…

This study tests a program called CONNECT Multilingual, designed to help Spanish and Cantonese speakers quit smoking while they undergo lung cancer screening. About 439 current smokers aged 50-80 will receive personalized video doctor messages, text support, and help getting nico…

This study tests a computerized task where teens push or pull a joystick in response to images, aiming to change automatic habits around cannabis and alcohol. Fifty-two participants aged 13-17 who use both substances will be followed for three months. The goal is to see if this s…

This study tests a program that sends personalized text messages and provides nicotine patches to help people with HIV in Cambodia stop smoking. Researchers will enroll 800 smokers and check if they quit after 6 months using self-reports and breath tests. The goal is to find a pr…

This trial tests whether giving far fewer opioid pills after hip arthroscopy, combined with gabapentin and extra-strength Tylenol, can control pain as well as the standard 30-pill opioid prescription. About 170 adults undergoing their first hip arthroscopy will be randomly assign…

This study looks at whether helping clinics offer more take-home doses of methadone (instead of daily visits) helps people stay in treatment for opioid use disorder. Researchers will work with 36 clinics and about 318 patients to see if this approach reduces emergency visits and …

This study tests whether changing treatment can help smokers who relapse early after trying to quit. 544 participants who want to quit smoking will receive free nicotine patches, lozenges, varenicline, or e-cigarettes for 12 weeks. All visits are remote, and the study lasts 6 mon…

This study tests whether tirzepatide, a drug approved for weight management, can help people with alcohol use disorder and related liver disease drink less and improve liver health. 120 adults will receive weekly injections of tirzepatide or a placebo for 12 weeks. Researchers wi…

This study tests if semaglutide, a drug used for diabetes, can help veterans with alcohol use disorder drink less. About 622 veterans will get either the drug or a placebo shot for 28 weeks. The goal is to see if it safely reduces heavy drinking and improves health.

This study tests whether a single dose of psilocybin (the active ingredient in magic mushrooms) combined with therapy can change brain activity and reduce drinking in people with alcohol use disorder. Two hundred participants will receive either psilocybin or a placebo, plus supp…

This study tests a mobile app and financial rewards to help veterans quit smoking before major elective surgery. Smoking increases the risk of complications after surgery, but quitting can be hard. The program uses a carbon monoxide monitor and app to verify abstinence, with ince…

This study tests whether tirzepatide, a drug used for diabetes and weight loss, can help people with moderate to severe opioid use disorder stay in treatment and use fewer opioids when added to their regular buprenorphine medication. About 310 adults who recently started buprenor…

This trial tests whether heart rate variability biofeedback (HRVB) — a technique that uses guided breathing to improve the body's stress response — can help veterans with both PTSD and substance use disorder. Participants will be randomly assigned to receive either HRVB or presen…

This study tests whether a rotigotine skin patch (Neupro), already approved for Parkinson's disease, can help people with cocaine use disorder cut back on cocaine use when combined with behavioral therapy. Forty adults aged 25 to 70 with moderate to severe cocaine use disorder wi…

This study tests whether offering financial rewards to Alaska Native adults and their family members helps them quit smoking. About 1,312 participants will be randomly assigned to receive the family-based incentive program or standard support. Success is measured by a saliva test…

This pilot study looks at two strategies to help pregnant and postpartum people with substance use disorder stay in treatment. One strategy screens for social needs like housing or childcare and connects patients to support. The other offers rewards for recovery-supportive behavi…

This study tests whether starting a monthly extended-release buprenorphine injection (Sublocade) in jail helps people with opioid use disorder stay on treatment after release. Two hundred men entering jail with a daily buprenorphine prescription will be randomly assigned to eithe…

This trial tests whether an 8-week virtual mindfulness program can help substance use peer workers reduce their own relapse risk and burnout. Peer workers—people in recovery who support others with substance use issues—often face high stress. The study compares the mindfulness pr…

This study tests an experimental medicine called brenipatide to see if it helps adults with alcohol use disorder drink less and reduce cravings. About 1,100 participants will receive either the drug or a placebo by injection for nearly a year. The goal is to find a safe, effectiv…

This phase 3 study tests whether brenipatide can help adults with moderate-to-severe alcohol use disorder drink less and feel less urge to drink. About 1,100 motivated participants will receive either the drug or a placebo for 56 weeks. The main goal is to see changes in drinking…

This Phase 2 trial tests whether adding brenipatide to standard buprenorphine treatment helps people with opioid use disorder stay off opioids longer. About 465 participants will receive either brenipatide or a placebo injection alongside their usual medication. The study measure…

This study tests a program called Returning to the Land, designed for young Native American caregivers (ages 14-19) who have a child aged 1-5. The program uses time in a biodiverse outdoor setting to address caregiver substance use and support children's emotional and behavioral …

This study tests two types of non-invasive brain stimulation (rTMS) to help veterans stop smoking. About 56 veterans who smoke at least 10 cigarettes a day will receive either standard or precision-guided rTMS over three weeks. Researchers will measure how much smoking decreases …

This early-phase study tests whether spironolactone, a drug currently used for high blood pressure and heart failure, can be safely used in people with alcohol use disorder. Twenty participants will each stay at a clinic four times, taking either the drug or a placebo for five da…

This study tests a new drug, GSK4532990, in about 393 adults with liver inflammation from alcohol use. The goal is to see if it safely reduces liver stiffness and improves liver function over 52 weeks. Participants receive either the drug or a placebo, and researchers monitor sid…

This study tests a new approach where nurses, rather than doctors, adjust methadone doses for people starting treatment for opioid addiction. The goal is to see if this makes it easier for patients to stay in care for at least three months. The trial will enroll 182 adults in Fre…

This study tests whether giving smokers a personalized quit plan based on their genes, health history, and biomarkers helps more people stop smoking than standard advice. About 850 smokers and their doctors from primary care clinics will take part. The goal is to see if tailored …

This trial tests whether a single session of low-intensity focused ultrasound aimed at a brain region linked to reward and craving can safely reduce substance cravings and prevent relapse in people with severe opioid or amphetamine use disorder. Sixty participants will receive th…

This trial tests whether a smartphone app called TRIS, paired with a Bluetooth breathalyzer and small daily cash rewards for verified abstinence, can help people with alcohol use disorder drink less. Participants submit three breath samples each day; those who are sober earn ince…

This pilot study is testing whether mailing buprenorphine to people with opioid use disorder after a hospital stay can help them stay in treatment. The goal is to overcome common barriers like lack of transportation or trouble getting to a pharmacy. Researchers will track whether…

This phase 2 trial tests whether semaglutide, a GLP-1 drug used for diabetes and weight loss, can help adults with opioid use disorder avoid using illicit opioids. Participants already receiving buprenorphine or methadone treatment will take weekly semaglutide or a placebo for 12…

This trial tests whether a digital program called CanCEASE, combined with a health navigator who helps parents address unmet social needs like housing or food, can boost smoking-cessation rates. Around 1,000 parents who smoke and report at least one social risk will be randomly a…

This trial investigates whether digital recovery support services—like smartphone apps and online tools—can help Black and African American adults in recovery from alcohol use disorder maintain their progress. Participants receive a menu of vetted digital resources plus a phone a…

This Phase 3 trial tests an experimental drug called larsucosterol in 350 people with severe alcohol-associated hepatitis. The goal is to see if the drug helps patients survive for 90 days without needing a liver transplant. Participants receive either the drug or a placebo by IV…

This study tests whether giving people with moderate to severe alcohol use disorder a medication called naltrexone (as a pill or injection) right in the emergency department, along with a brief counseling session, helps them follow up with ongoing treatment. All participants rece…

This study examines whether adding structured high-intensity physical exercise to a 3-month residential treatment program for substance use disorder improves patients' physical health, mental health, and quality of life. Researchers measure changes in oxygen uptake, leg strength,…

This study tests a computer-based skills training program called Path180 for teenagers aged 13 to 19 with alcohol use disorder. Participants receive either standard treatment or standard treatment plus Path180, a 7-module program that teaches coping skills and motivation to cut b…

This study tests whether giving adult smokers access to a heated tobacco product (HTP) helps them stop smoking cigarettes. About 1,060 healthy smokers aged 21–65 will use either HTP Device 1 or Device 2 with different stick flavors (tobacco or menthol) for 3 months. The main goal…

This study tests whether a single high dose of psilocybin (the active ingredient in magic mushrooms) can help people with opioid use disorder stay off illicit opioids when added to standard buprenorphine treatment. About 90 adults who have already started buprenorphine will recei…

This study tests whether daily mindfulness text messages can help people taking medication for opioid use disorder who also have chronic pain. Participants receive medication reminders and either two or four mindfulness messages per day for six weeks, along with brief surveys thr…

This study is testing two counseling approaches—Motivational Interviewing (MI) and Mindfulness-Oriented Recovery Enhancement (MORE)—to help people on methadone treatment reduce their use of tobacco, opioids, and other drugs. Researchers will enroll 420 adults who are currently on…

This study tests whether patient navigation—a series of coaching sessions—helps pregnant women with opioid use disorder stay in treatment and reduce drug use. About 429 pregnant women will be randomly assigned to either usual care or patient navigation, which includes up to 14 se…

This trial tests whether a training program for methadone clinic staff can help patients stay in treatment longer and reduce overdose risk. The program focuses on trauma-informed, patient-centered care and includes staff education, supervision, and clinic self-assessment. Researc…

This study tests a mutual-help group called the TLC Program for transgender adults who struggle with substance use or are recently in recovery. The program uses mindfulness and values-based skills from Acceptance and Commitment Therapy to improve mental health and reduce HIV risk…

This study tests whether capsules containing bacteria from healthy people can safely reduce alcohol cravings and drinking in adults with alcohol-related liver disease and cirrhosis. About 80 participants will receive either the bacteria capsules or a placebo, and researchers will…

This study looks at whether a single 6 mg oral nicotine pouch can lower cigarette cravings and dampen brain activity triggered by smoking-related images. Adults who smoke and are moderately to highly dependent on nicotine will use the pouch after going without nicotine overnight.…

This study tests a smartphone app called ESCAPE, designed specifically for Black adults with HIV who smoke. The app teaches ways to handle stress, anxiety, and nicotine cravings, and is paired with nicotine patches or gum. 300 participants across the US will be randomly assigned …

This study tests a device called Addinex that stores opioid pills and releases them only with a unique passcode. Adults having cancer-related surgery who expect to need opioids for pain will use the device instead of a standard pill bottle. Researchers will measure how many unuse…

This study tests a new method called ROLDI (rapid outpatient low-dose initiation) for starting buprenorphine in people with opioid use disorder who use fentanyl. The goal is to see if this approach can begin treatment without causing severe withdrawal symptoms. Participants will …

This study tests whether cognitive behavioral therapy (CBT) for parents of very premature infants in the NICU can reduce feelings of child vulnerability and improve the child's development. Parents in the intervention group receive five CBT sessions during and after the NICU stay…

This study tests whether giving choline supplements to pregnant women who drink heavily can reduce the negative effects of alcohol on their baby's growth and brain development. Choline is an essential nutrient that supports cell membranes and brain function. The trial compares da…

This study will enroll 270 pregnant Native American and Alaska Native women with substance use disorders. Researchers will adapt standard pregnancy and addiction care to better fit Native cultural needs. The goal is to help mothers stay in treatment and attend follow-up visits af…

This early-phase trial investigates whether a single dose of psilocybin, the active compound in magic mushrooms, can increase synaptic density — the connections between brain cells — in people with opioid use disorder. Twelve medically healthy adults who have been abstinent from …

This study aims to create a way for mothers with opioid use disorder to receive treatment (buprenorphine) while visiting their babies in the neonatal intensive care unit (NICU). Researchers will interview mothers and healthcare providers to understand barriers and then develop a …

This trial tests whether a helmet that delivers focused ultrasound waves can safely change brain activity in people with moderate-to-severe substance use disorder who haven't responded to medication. Participants receive two MRI-guided sessions targeting brain regions linked to a…

This study tests whether combining varenicline (a medication that helps people stop smoking) with financial rewards for clean urine samples can reduce alcohol and tobacco use in adults who both drink heavily and smoke daily. Participants are randomly assigned to receive either re…

This phase 2 trial tests whether mirtazapine, an antidepressant, can help adults who are already receiving medication for opioid use disorder to stop or reduce their methamphetamine use. Participants are randomly assigned to receive either mirtazapine or a placebo for 10 weeks, a…

This phase 3 trial investigates whether high-dose psilocybin, given alongside psychotherapy, can prevent relapse in people with severe alcohol use disorder who also have depressive symptoms. Participants receive either a high dose (25 mg) or a low dose (3 mg) of psilocybin in two…

This study investigates whether oxygen and the drug acetazolamide can help stabilize breathing during sleep in people who take prescription opioids and have sleep apnea. Researchers will measure breathing patterns and sleep quality in 150 veterans. The goal is to find new ways to…

This study tests a mobile health app called uMAT-R, designed to help Black adults recover from opioid or stimulant use and manage depression or anxiety. Participants are recruited from community treatment centers and use the app to track substance use and mental health symptoms. …

This study tests whether a non-invasive brain stimulation technique called tDCS can reduce opioid cravings and prevent relapse. Researchers will compare active stimulation to a sham (fake) version in 100 adults with opioid use disorder who recently started medication like bupreno…

This study tests an updated computer tool for emergency room doctors that includes information about a patient's social risks—like unstable housing or food insecurity—alongside standard opioid use disorder treatment guidance. The goal is to see if this social-risk-informed tool h…

This study tests whether psilocybin, a psychedelic substance, can help people stop smoking. Sixty-six daily smokers who have tried and failed to quit before will receive either psilocybin or niacin (a vitamin) in two sessions one week apart. Researchers will check if participants…

This study tests whether a 30-day alcohol abstinence challenge, supported by a mobile app, is feasible and helps reduce heavy drinking. Researchers will enroll 150 adults in Oklahoma who drink regularly. Participants will try to completely avoid alcohol for one month, and the stu…

This phase 2 study tests whether the sleep medication suvorexant can reduce insomnia in 76 adults aged 21–65 who have both alcohol use disorder and posttraumatic stress disorder. Participants take either suvorexant or a placebo for 14 days while trying to stop drinking. The study…

This study investigates whether ketamine, given as four intravenous infusions over two weeks, can reduce depression and alcohol cravings in adults who have both conditions. Participants are already in inpatient addiction therapy and are randomly assigned to receive either ketamin…

This study tests a smartphone app designed to help young adults aged 18 to 25 who want to reduce their combined use of alcohol and opioids. The app sends timely tips based on users' daily reports. The goal is to see if the app is usable, satisfying, and worth testing in larger st…

This study tests a combination of two treatments for people with cocaine use disorder: deep transcranial magnetic stimulation (TMS), which uses magnetic pulses to stimulate the brain, and contingency management, a program that rewards participants for staying cocaine-free. The go…

This study tests whether a smartphone app can help people reduce their use of illegal opioids while they are in treatment for opioid addiction. The app uses a short test to predict the chance of relapse in the next week and adjusts medication doses accordingly. About 225 adults w…

This study tests whether a handheld device that gently stimulates the vagus nerve in the neck, combined with a nicotine patch, can help people stop smoking. Researchers at Mayo Clinic will enroll 150 motivated smokers who smoke at least 10 cigarettes a day. Participants use the d…

This trial tests a short virtual therapy called IMPROVE, designed to help people on medication for opioid use disorder who also drink heavily. Participants attend three one-hour online sessions and use a mobile app to learn skills for managing emotional distress that can trigger …

This study tests a program that combines community health worker visits with a smartphone app to help low-income women stop smoking. About 344 women in Brazil will either get the app plus health worker support or just a referral to a standard quit-smoking clinic. The goal is to s…

This study tests a therapy toolkit called Signs of Safety, designed for Deaf individuals who use American Sign Language and struggle with alcohol use disorder and PTSD. The toolkit adapts an existing therapy (Seeking Safety) to be Deaf-accessible. Researchers compare it to treatm…

This study tests whether a program called SBIRT (Screening, Brief Intervention, and Referral to Treatment) can help people reduce risky alcohol and drug use. About 400 adults visiting family planning clinics will either get SBIRT or usual care. Researchers will track changes in d…

This study tests whether full-spectrum or broad-spectrum CBD can help people with alcohol use disorder drink less. 180 adults who want to reduce or quit drinking will receive either CBD or a placebo for 12 weeks. Researchers will track changes in drinking habits, cravings, and an…

This study tests whether cannabidiol (CBD) can slow the progression of Alzheimer's disease in people aged 55-85 with mild cognitive impairment (early memory loss). Over 236 participants will receive either CBD or a placebo for a period, and researchers will measure changes in mem…

This study tests a digital tool called EMBED that helps emergency doctors identify patients with opioid use disorder and start them on buprenorphine, a medication that reduces cravings and withdrawal. The tool is built into the electronic health record and guides doctors through …

This study tests whether a common stop-smoking medication (varenicline) plus financial incentives can help adults aged 18-40 who use both e-cigarettes and cannabis quit vaping. All 105 participants will receive the drug and rewards for 12 weeks. Researchers will also track how ca…

This study tests whether hemp-derived CBD (with or without a tiny amount of THC) can help people who use cannabis concentrates regularly to cut down or stop. 165 adults who want to reduce their cannabis use will take either CBD or a placebo for 8 weeks, plus attend therapy. Resea…

This study tests whether a 12-week group therapy program called Mom Power can help new mothers with opioid use disorder improve their mood, reduce stress, and strengthen the bond with their child. About 160 mothers with a child aged 5 or younger will be assigned to either the Mom…

This study tests whether a combined computer- and counselor-delivered alcohol treatment program can help people who receive an early liver transplant for severe alcoholic hepatitis stay alcohol-free. Researchers will compare this program to standard care in 200 participants, trac…

This study tests whether a behavioral sleep intervention combined with the drug varenicline can help heavy smokers quit. Researchers will measure sleep quality, smoking habits, and brain activity in 114 participants. The goal is to see if improving sleep reduces negative emotions…

This study will enroll 1,000 adults with both opioid use disorder and a mental health condition. Participants will receive standard medication for opioid use disorder, with some also getting a team-based support program called MISSION. The goal is to see if MISSION helps people s…

This study tests whether giving smokers a choice of e-cigarette flavors (tobacco, menthol, mint, or other) helps them stop smoking regular cigarettes. About 1,280 adult smokers will use a provided e-cigarette device for 13 weeks, and researchers will check who stays away from cig…

This study tests whether a slow-release form of dexamphetamine, a drug used for ADHD, can help people with cocaine and opioid addiction reduce their cocaine use. About 204 adults who are already on methadone for opioid addiction will receive either dexamphetamine or a placebo for…

This pilot study tests whether offering financial incentives (contingency management) can help people who started medication for opioid use disorder in the emergency department keep attending outpatient treatment. Thirty adults will be randomly assigned to receive either standard…

This study tests whether a higher starting dose of buprenorphine in the emergency room helps more people with opioid use disorder engage in treatment within 10 days. It also looks at whether the higher dose reduces cravings, withdrawal symptoms, and use of illicit opioids. The tr…

This study aims to reduce racial disparities in opioid overdose deaths by training peer recovery coaches and using an AI-driven texting tool. The coaches will send personalized texts to participants (Black and Latinx adults with opioid use disorder) to help them connect with trea…

This study tests a program called Fathers for Change (F4C) for 280 fathers who struggle with substance misuse and have been violent toward family. The program aims to help them control emotions, stop substance use, and prevent violence. Researchers compare F4C to standard drug co…

This study tests whether adding buprenorphine (a partial opioid) to the standard shot XR-naltrexone helps people with opioid use disorder stay in treatment and avoid relapse. 180 adults will receive either the combo or a placebo for 24 weeks. The goal is to see if the combo impro…

This study tests whether a mobile app with a virtual group support feature can help young Black women (ages 18-30) who misuse alcohol reduce their drinking and risky sexual behavior, and increase their use of PrEP (a daily pill that prevents HIV). About 500 HIV-negative women in …

This study tests a program called PrTNER that helps young people aged 15-29 who are at risk for HIV or already living with it, and who also have substance use issues. The program provides prevention, treatment, and support to help them start HIV prevention medication (PrEP) or lo…

This study tests whether 8 weeks of combined resistance breathing training and aerobic exercise can improve physical health and quality of life in male drug rehabilitation patients. Ninety men aged 18-50 will be randomly assigned to one of three groups: combined training, breathi…

This study is testing whether e-cigarettes or nicotine replacement therapy (patches and lozenges) can help obese smokers quit or reduce smoking. Sixty participants will use one of the two products for 8 weeks, and researchers will track how many cigarettes they smoke, their carbo…

This study tests a program called Mlambe for married couples in Malawi where one partner drinks heavily and both are affected by HIV. The program offers savings accounts, money management classes, and relationship skills training to help couples reduce alcohol use. Researchers wi…

This study is testing a tailored tobacco cessation program for cancer survivors and their caregivers. The program includes four sessions delivered by phone or video, focusing on quitting techniques and support. Researchers want to see how many people enroll and complete the progr…

This study tests whether deep transcranial magnetic stimulation (TMS) can help Veterans with alcohol use disorder reduce relapse. About 100 participants will receive TMS targeting brain circuits linked to craving and emotional processing. The goal is to increase alcohol-free days…

This study tests whether semaglutide (Wegovy), a drug used for weight loss, can help adults with cannabis use disorder use less cannabis. 100 participants will receive either semaglutide or a placebo injection weekly for 20 weeks. The main goal is to see if the drug reduces total…

This pilot trial tests two long-acting injectable buprenorphine medications (Sublocade and Brixadi) in 60 incarcerated individuals with opioid use disorder who are about to be released from prison. Participants either choose their preferred medication or are randomly assigned one…

This study tests a program called Kisoboka for men living with HIV who drink heavily in fishing communities. The goal is to help them drink less, take their HIV medication as prescribed, and achieve undetectable viral loads. About 716 men will be randomly assigned to different co…

This study tests a new behavioral therapy called CM-PST, designed to help young adults (ages 18-24) with alcohol use disorder achieve and maintain abstinence. The therapy combines rewards for abstinence with skills to manage daily challenges. The trial first checks if the therapy…

This study tests whether a virtual reality experience can help people in early recovery from alcohol use disorder drink less and stay abstinent longer. About 500 participants who have been sober for at least two weeks but less than a year will use a VR program designed to strengt…

This study tests a program that combines brief advice, nicotine replacement therapy (like patches or gum), and text-message support to help smoking parents quit. The goal is to reduce children's exposure to secondhand smoke. About 1,200 smoking parents in Hong Kong who live with …

This study tests whether a non-invasive brain stimulation technique called tDCS can reduce cannabis use in people with schizophrenia. 110 motivated participants will receive either real or sham stimulation over 5 days. Researchers will track changes in cannabis consumption, cravi…

This study tests a simple program for smokers visiting emergency rooms. Participants get a $300 gift card for nicotine replacement products, self-help materials, and six months of phone support from a specialist. The goal is to see if this approach helps more people quit smoking …

This study tests a digital group program called WORTH Paths for women aged 18-44 who have been involved in the criminal legal system, have a substance use disorder, and need contraception but aren't using it. The program includes three virtual group sessions with interactive acti…

This study tests whether adding financial coaching to standard smoking cessation counseling helps low-income smokers quit. 602 participants will receive either standard counseling or integrated financial-smoking counseling, plus nicotine patches. The goal is to see if addressing …

This study tests a program led by trained peers (other women with HIV) that combines acceptance and commitment therapy, exercise, and social support. The goal is to help 300 women in four counties stick to their HIV medication and manage substance use and trauma. Researchers will…

This study tests whether hemp-derived CBD can reduce the harmful effects of cannabis in young adults aged 18-25 who use cannabis at least five days a week but aren't looking to quit. Participants will take either CBD or a placebo for 8 weeks, and researchers will measure changes …

This study tests a smartphone app called Smart-T Alcohol that sends personalized messages to help homeless adults reduce their drinking. About 600 people from shelters in Dallas and Oklahoma City will either get the app plus usual care, or usual care alone. The goal is to see if …

This study tests whether cannabidiol (CBD), a non-psychoactive compound from cannabis, can reduce cannabis concentrate use and cravings in people who use concentrates regularly but aren't trying to stop. 120 participants will take either 200 mg or 400 mg of CBD or a placebo daily…

This study is testing a medication called brexpiprazole to see if it can help people with alcohol use disorder drink less. Researchers want to know if a person's genes affect how well the drug works. The study involves 250 adults who are not currently seeking treatment for their …

This study tests a new approach called SINI to help people with opioid use disorder start buprenorphine treatment more comfortably. Participants receive small doses of naloxone to trigger mild withdrawal, then take buprenorphine to ease symptoms, followed by a long-acting injecti…

This pilot study tests a personalized deep brain stimulation (DBS) method for people with severe, treatment-resistant substance use disorders. Ten participants will first undergo detox, then have temporary electrodes placed in their brains to map addiction-related circuits, follo…

This study tests an adaptive web-based program called Partners Connect for military couples. It aims to reduce drinking in concerned partners and encourage service members to seek help for alcohol use. About 744 couples will participate, comparing the online program to standard w…

This study tests whether bringing mobile health clinics to rural communities and pairing patients with a certified peer support specialist (someone who has personally recovered from opioid use disorder) can help more people start and stay on medication for opioid use disorder. Re…

This phase 2 trial tests whether moderate to high doses of LSD can reduce heavy drinking in people with alcohol use disorder. 128 participants who have recently detoxified will receive either LSD or a low-dose placebo, along with therapy. The study tracks drinking behavior and br…

This study tests a vaccine that helps the body produce antibodies against oxycodone, a commonly abused prescription opioid. The goal is to reduce the drug's ability to reach the brain and lower its pleasurable effects. The trial involves 45 adults with opioid use disorder and foc…

This study tests a new way to help people stop smoking by combining standard quit-smoking programs with a computer task that retrains unconscious urges to approach cigarettes. About 300 adults who want to quit will be randomly assigned to one of three groups: standard treatment p…

This study tests whether short behavioral therapy sessions can improve sleep and reduce alcohol and cannabis use in young adults aged 18-29 who struggle with insomnia and heavy drinking or marijuana use. Researchers will enroll 800 participants in Washington State and compare tho…

This study tests whether cannabidiol (CBD), a compound from hemp, can help people who want to quit smoking reduce their cigarette use. 120 adults with tobacco use disorder will receive either CBD or a placebo twice daily for 56 days. Researchers will measure nicotine levels and c…

This study is testing a combination of counseling, peer mentoring, text messages, and nicotine replacement therapy to help people with HIV quit smoking. Researchers will enroll 500 smokers living with HIV in New York City to find the most effective and affordable approach. The go…

This early-stage trial tests a new drug called NTX-2001 in 50 adults with alcohol use disorder. Participants take the drug or a placebo daily for two weeks. Researchers will measure how much alcohol they drink and check for side effects. The goal is to see if this drug can safely…

This pilot study tests whether metformin, a diabetes drug, can help protect brain white matter in young adults (18-25) with early psychosis who use cannabis. Participants will take metformin for 6 months and undergo brain scans and questionnaires. The goal is to see if this appro…

This study is testing whether a type of brain stimulation called theta burst stimulation (TBS) can reduce heavy drinking and cravings in people with alcohol use disorder. Researchers will apply magnetic pulses to a brain region linked to drinking patterns, comparing real stimulat…

This study is testing a new drug called CMND-100 (MEAI) in healthy volunteers and people with alcohol use disorder. The goal is to find a safe dose and see if it can reduce drinking and cravings. The trial is currently recruiting 84 participants.

This study tests a program that gives rewards (like gift cards) to people in Hawaii who are trying to stop using methamphetamine after a serious injury. 40 adults who were hospitalized and tested positive for meth will visit a clinic up to three times a week for urine tests. Rese…

This study tests a smartphone app that lets people with severe opioid use disorder take their daily methadone at home while being recorded. The app helps clinics monitor safe use and cravings. Researchers will compare this approach to standard care in 100 adults to see if it keep…

This study tests a new type of brain stimulation (rTMS) as a treatment for cannabis use disorder. Researchers will enroll 46 adults who use cannabis frequently and want to cut back or quit. The goal is to see if the treatment is safe, tolerable, and can reduce cravings and use.

This study tests whether cannabidiol (CBD) can reduce alcohol cravings and drinking in people with alcohol use disorder. Thirty-six participants will receive both CBD and a placebo at different times to compare effects. The goal is to see if CBD can help control alcohol use, but …

This study tests whether gentle brain stimulation (tVNS or CLAM-tACS) during mindfulness exercises can help people recovering from alcohol dependence stay sober. 140 detoxified patients will take part in a mindfulness-based relapse prevention program, with some receiving stimulat…

This study tests whether starting nicotine replacement therapy (patches, gum, or lozenges) at a specific time in the menstrual cycle helps women quit smoking. About 1,200 women who smoke daily and have regular periods will be assigned to start their quit attempt during the follic…

This study tests whether an 8-week culturally responsive harm reduction program helps Black and Latinx people who use drugs engage more with services and reduce opioid or stimulant use. Researchers will compare the program to standard harm reduction services in 200 participants. …

This study tests whether e-cigarettes or nicotine pouches help adult smokers reduce their cigarette use. 256 participants who smoke will be given one of these products for 4 weeks, with different flavors and nicotine levels. Researchers will track how many cigarettes they smoke a…

This small study is testing whether MDMA-assisted therapy can help new mothers who have both post-traumatic stress disorder (PTSD) and opioid use disorder. Fifteen participants will receive MDMA in a controlled setting along with therapy sessions. The goal is to see if this appro…

This study tests a new program to help people quit smoking by teaching them how to handle withdrawal symptoms and negative feelings. Researchers will enroll 400 adult smokers who want to quit. The goal is to see if this training helps more people stay smoke-free compared to stand…

This study tests whether a 1-month meditation app can help youth on probation (ages 13-20) reduce cannabis use and risky sexual behaviors by improving emotion regulation. Researchers will enroll 300 participants in Cook County, IL, and measure changes in substance use, mood, and …

This study compares three approved smoking cessation products—nicotine replacement therapy (patch plus gum or lozenge), cytisine, and varenicline—combined with coaching and home delivery from a virtual pharmacy. Researchers will track how well 150 Ontario adults who smoke use the…

This study looks at whether a structured approach to managing heart disease risk factors (like high blood pressure, diabetes, and smoking) can improve health outcomes in adults. Researchers will follow 220 patients in a regular cardiology clinic, collecting data on their blood pr…

This Phase 2 trial tests whether guanfacine, a drug used for high blood pressure and ADHD, can help people with alcohol use disorder drink less. Researchers will compare guanfacine to a placebo in 160 men and women, measuring alcohol consumption in lab sessions and during a treat…

This Phase 3 trial tests a drug called LAENNEC, made from human placenta, in people with chronic liver disease. It compares giving the drug as an intravenous drip versus a standard shot under the skin. The main goal is to see if the IV form lowers liver enzyme levels more effecti…

This study tests whether taking capsules of processed donor stool (fecal transplant) can help people with liver cirrhosis avoid serious infections and hospital stays. About 300 adults with alcohol-related or fatty liver cirrhosis will receive either the transplant or a placebo an…

This study tests a short, computer-based program to help people with HIV and alcohol use disorder avoid returning to heavy drinking. About 150 adults from a Johns Hopkins HIV clinic will take part. The goal is to see if the program helps them stay alcohol-free longer and drink le…

This study tests a smartphone app designed to strengthen self-control in teens and young adults (ages 14-35) being treated for alcohol or cocaine use disorder. Participants will complete 12 short training sessions over about a month, plus booster sessions. The goal is to see if t…

This study tests different treatment plans to help adults with opioid use disorder stay on buprenorphine longer. About 500 people from the emergency department will take part. Researchers will compare approaches to see which works best for keeping patients on medication and reduc…

This study tests if low intensity focused ultrasound (LIFU) can help people with severe opioid addiction who haven't improved with other treatments. About 34 adults aged 22-60 will receive either real or sham ultrasound to specific brain areas. Researchers will monitor safety and…

This study aims to see which of two blood tests, eLIFT or FibroMeter, is better at finding advanced liver scarring (fibrosis) in people with fatty liver disease or alcohol-related liver disease. About 1,788 adults from primary care clinics will take both tests. The goal is to imp…

This study tests whether using mobile health (mHealth) tools helps find early signs of oral cancer better than the usual visual exam in rural areas of Varanasi, India. Over 5,000 adults with risk factors like smoking, tobacco use, or age over 40 will be screened. The goal is to c…

This study is testing whether combining new blood tests and stool analysis can detect liver fibrosis earlier than current methods. Researchers will follow 1200 adults referred to a community liver clinic. The goal is to identify advanced liver disease sooner and reduce unnecessar…

This study tests whether an online parenting program, eHealth Familias Unidas, can reduce symptoms of depression, anxiety, and suicidal behavior in Hispanic adolescents aged 12 to 16. The program involves 13 online sessions that aim to strengthen family communication and protecti…

This study tests whether a 'practice coaching' program can help opioid treatment clinics offer more HIV and hepatitis C testing to their patients. Clinics are randomly assigned to receive either coaching focused on HIV testing, coaching that adds hepatitis C testing, or just info…

This trial tests whether proactively connecting household smokers to quit-smoking resources through a child's pediatric care visit increases their use of evidence-based treatments and quit rates. Adult household members who smoke are offered options like nicotine replacement, var…

This pilot trial tests a counseling program called CHOICES-PLEAS for women in a jail-based substance use treatment program. The goal is to reduce the risk of substance-exposed pregnancies by helping women change their substance use and risky sexual behaviors. Participants receive…

This study tests whether a daily broad-spectrum cannabinoid capsule can protect the brain and speed recovery from concussion in healthy male athletes who play contact sports. Participants take either the active capsule or a placebo twice daily, and researchers measure brain blood…

This study tests whether a game called Singularities can help teens aged 14-18 reduce alcohol-related harms, like hangovers or risky behavior. About 2,000 participants will play either Singularities or a nutrition game and complete surveys over one year. The goal is to see if the…

This study tests a program called PAL that gives hospital patients personalized feedback on smoking, drinking, diet, and exercise. About 788 patients will be split into two groups: one gets the feedback and support, the other gets usual care. The goal is to see if this low-cost a…

This study tests different combinations of an online program called CARRII, designed to help Native American women reduce their risk of alcohol-exposed pregnancy. Over 500 participants will be randomly assigned to one of eight versions of the program for three months. The goal is…

This study tests a mobile health program called WINGS+PrEP for women who have experienced heavy drinking, partner violence, and involvement with the criminal legal system. The program provides information about PrEP (a daily pill that prevents HIV) and offers support sessions. Re…

This study tests four different approaches to help people who inject drugs remember and stick with their daily HIV prevention pill (PrEP). Researchers will enroll 256 adults who are newly on medication for opioid use disorder and have started PrEP. The goal is to see which method…

This study tests whether well-timed text messages can help young Air Force trainees avoid binge drinking and its consequences. About 7,000 trainees will either get the standard alcohol intervention or that plus automated texts sent just before, during, and after they first get ac…

This study aims to create and test a prevention program for e-cigarette use among 6th-8th graders in rural Hawaii. The program includes classroom lessons, social media content, and a print campaign, all designed with Hawaiian culture in mind. Researchers will work with 500 studen…

This study tests a digital health program to help women involved in the criminal justice system start PrEP (a daily pill to prevent HIV) and get treatment for opioid use disorder. Researchers will compare the program to a simpler decision aid alone. The goal is to reduce stigma a…

This pilot study tests whether a peer-driven program can help people who inject drugs in Baltimore reduce their risk of HIV, hepatitis C, and overdose. Researchers will identify high-risk injection settings and train peers to promote safer practices, like carrying naloxone and av…

This study tests a 9-month program called NE+ for American Indian youth aged 12-18. The program includes educational modules and cultural teachings to encourage abstinence, condom use, and avoid substance use. It also involves parents and school staff. The goal is to see if the p…

This study tests whether adding a trained family advocate to a proven parenting program can help prevent substance use and reduce childhood trauma. About 360 families from 36 high-risk communities in New Jersey will take part. The goal is to see if extra support makes the program…

This study tests a web-based program called T.E.C.H. Parenting that teaches parents of middle-schoolers how to talk about media and set rules around it. The goal is to reduce kids' exposure to substance use in movies, shows, and online content, which may lower their risk of tryin…

This study tests whether adding extra supports—like telehealth coaching and practical help—to a group parenting program can prevent language delays in young children (12-42 months) of parents with substance use disorders. 244 parents will be assigned to the group program alone or…

This study tests a program called Family Spirit Strengths (FSS) designed to help American Indian and Alaska Native mothers and caregivers cope with stress, build skills, and connect with their culture. About 188 participants will either receive FSS or a nutrition education progra…

This study tests a support service designed specifically for transgender women, men, and non-binary people in Thailand who have used chemsex drugs or other substances in the past year. The program offers HIV prevention (PrEP), mental health support, and STI care. Researchers will…

This study tests a program called CHORUS+ that helps people who inject opioids get HIV prevention medication (PrEP) and treatment for opioid use disorder (MOUD). Participants receive HIV self-testing, rapid access to medications, and 6 months of support from a peer coach. The goa…

This study tests a program called Mobile Enhanced Prevention Support (MEPS) for people recently released from jail or prison who have substance use disorders. The program pairs participants with a peer mentor, offers cash incentives for using health services, and provides a smart…

This study tests whether people who use opioids can be trained as peer educators to teach their friends and family how to prevent overdoses. Researchers will enroll 600 participants in Baltimore and compare those who receive overdose prevention training with those who get standar…

This study tests an after-school program called Native Spirit for Indigenous teens in grades 7-12. The program uses cultural activities to strengthen identity, self-esteem, and resilience, with the goal of preventing substance use. About 60 teens from two Arizona tribes will take…

This study is developing and testing a smartphone app called ACT to RECOVER, designed to help veterans receiving medication for opioid use disorder improve their daily functioning and quality of life. The app is based on Acceptance and Commitment Therapy (ACT), a well-supported a…

This pilot study tests whether engaging in enjoyable activities and virtual reality can reduce alcohol cravings and drinking in people with alcohol use disorder. About 44 adults will attend up to 10 visits, comparing active sessions (games, VR, crafts) with passive sessions (watc…

This trial tests whether daily music training—either piano practice or listening to music—can improve behavior and thinking in children with fetal alcohol spectrum disorder (FASD). Each child will do both activities for 12 weeks each, in a random order, with tests before and afte…

This study tests whether suvorexant, a sleep medication, can help people with opioid use disorder fall asleep and stay asleep. About 300 participants will receive either suvorexant or a placebo. The goal is to see if the drug improves total sleep time and is safe to use.

This early-stage study at Johns Hopkins is testing whether cannabidiol (CBD) can reduce stress and nicotine withdrawal symptoms in people who smoke. Ninety healthy smokers will receive CBD and then be exposed to stress while researchers measure their mood, heart rate, and stress …

This study tests a wearable device worn on the ear that stimulates nearby nerves to change brain signals. The goal is to see if it can reduce chronic pain and ease symptoms of opioid withdrawal. Adults aged 18 to 65 with chronic pain who are tapering off opioid medication will re…

This study tests whether cannabidiol (CBD) can reduce the need for strong painkillers (opioids) in people with end-stage prostate cancer that has spread and no longer responds to standard treatments. About 58 participants will receive either CBD or a placebo three times daily for…

This study looks at whether cannabis can help veterans who have PTSD and thoughts of suicide. About 500 veterans who have used cannabis in the past year will take part. Researchers will track changes in PTSD symptoms, mood, and suicide risk over time using interviews and question…

This trial compares two types of nerve blocks given before breast surgery to see which better prevents chronic pain that can last for months. Women aged 18-65 scheduled for mastectomy will receive either a serratus posterior superior intercostal plane block or an erector spinae p…

This study tests whether a non-invasive brain stimulation technique called TMS can reduce cravings and opioid use in people with opioid use disorder. One hundred participants will receive either real or sham TMS sessions over 8 weeks, with follow-up visits for about 5 months. The…

This study compares two types of nerve blocks—SPSIPB and ESPB—for pain relief after breast surgery. 54 women will be randomly assigned to receive one block before anesthesia. Researchers will measure pain scores and opioid use in the first 24 hours to see which block works better…

This study tests a new medication called PP-01 to help adults with cannabis use disorder manage withdrawal symptoms when they stop using cannabis. About 420 participants will receive PP-01, an existing drug (nabilone), or a placebo daily for 34 days, with a one-week hospital stay…

This study tests whether psilocybin, the active ingredient in magic mushrooms, can help relieve severe pain in people with advanced cancer when opioids don't work. Fifteen participants will receive psilocybin capsules along with therapy sessions. The goal is to see if this approa…

This study tests whether a short, four-session therapy program that helps people rethink their identity and memories related to drinking can reduce alcohol use and cravings. Sixty adults with alcohol use disorder will be randomly assigned to either receive this therapy plus usual…

This early-phase study at Yale will test whether a single 25mg dose of psilocybin is safe and well-tolerated in 10 veterans who smoke daily and have chronic pain. Researchers will monitor side effects and explore whether the drug can improve pain and boost motivation to quit smok…

This trial tests a peer-led program called Honest, Open, Proud (HOP) for veterans with mental health or substance use disorders who have been involved with the justice system. The program helps participants decide whether, when, and how to disclose their conditions, with the goal…

This study tests whether a digital avatar (virtual coach) program can help young adults aged 18-29 who come to the emergency department with alcohol misuse and suicidal thoughts. About 60 participants will either use the avatar program with supportive texts or a free suicide safe…

This study tests whether using a mobile app called the Safe and Sound Protocol (SSP) can help adults who are in treatment for substance use and have a history of trauma. About 100 participants will either use the active SSP or a sham version for up to 5 hours over a week, alongsi…

This study tests a web-based platform called KulaMind-Recovery designed to help loved ones of people recovering from substance use disorders. The platform offers skill-building modules, one-on-one video sessions, text-based coaching, and a community forum. Researchers will see if…

This trial tests a virtual program called iPAWS for adolescents and young adults having their wisdom teeth removed. The program teaches safe, effective ways to handle post-surgical pain and aims to reduce cannabis and other substance use. Researchers are enrolling 150 participant…

This trial tests whether a culturally adapted, virtual group therapy called Emotional Awareness and Expression Therapy can help Israeli adults with chronic musculoskeletal pain who also use medical cannabis. Participants attend eight weekly sessions—one in person, the rest online…

This study tests whether a program that helps people notice and manage smoking triggers can help light smokers (10 or fewer cigarettes per day) quit. About 60 adults will either get standard counseling or counseling plus a cue-based tool where they text about cravings. The goal i…

This study tests whether giving testosterone to men with chronic back pain who take opioids can improve their pain, sexual function, fatigue, and quality of life. The men have low testosterone caused by opioids. Half will get testosterone injections and half a placebo. The trial …

This study tests a smartphone app that sends personalized messages to help people quit smoking. The messages are triggered by real-time data like location and stress levels, offering coping strategies when urges strike. Seven participants will use the app for 45 days to see if it…

This study tests whether music therapy can help newborns who are withdrawing from opioids they were exposed to before birth. Researchers will try six different music-based approaches, including parent-sung lullabies and rhythmic sounds, to see if they calm the babies and improve …

This study tests a social media program called Quit the Hit Toolkit to help teens and young adults stop vaping. Coaches are trained to lead small support groups for 5 weeks. The goal is to see if this approach is practical and helpful for quitting nicotine.

This study tests whether tirzepatide, a drug used for diabetes and weight loss, can help people with overweight or obesity quit smoking. 300 smokers will receive either the drug or a placebo, plus nicotine patches, for 16 weeks. The goal is to see if the drug improves quit rates …

This early-phase trial at Yale tests whether dronabinol (Marinol), a synthetic form of THC, can reduce pain sensitivity and improve attention and mood in 36 adults with opioid use disorder who are stable on methadone or buprenorphine. Participants receive either 2.5 mg, 5 mg of d…

This study tests whether a device that gently stimulates the forehead during sleep can help children aged 8 to 12 who have ADHD linked to prenatal alcohol exposure. The device, already cleared for general pediatric ADHD, is used at home by parents each night for four weeks. Resea…

This study tests whether a four-week at-home memory training program called MemFlex can improve symptoms and brain function in people with opioid use disorder. Participants complete memory exercises and undergo brain and heart monitoring before and after training. The goal is to …

This study tests whether a quadratus lumborum block—a type of nerve block—can better control pain and reduce opioid use in children aged 6 to 18 who are having palate repair surgery with bone taken from the hip. Half of the participants receive the nerve block, while the other ha…

This study tests whether the insomnia medication lemborexant can improve sleep, mood, and impulse control in men and women with opioid use disorder who are already taking buprenorphine. Participants take either lemborexant or a placebo nightly for 8 weeks and complete surveys, co…

This study tests whether combining text message support with financial incentives helps low-income pregnant women quit smoking more than text messages alone. Thirty pregnant women who smoke will be split into two groups to see which approach is more acceptable and effective. The …

This study tests whether a smartphone-based program is practical and helpful for young adults aged 18-25 who have ADHD and drink heavily. Participants use the app for 31 days to improve awareness and self-control around alcohol. The goal is to see if the app reduces binge drinkin…

This study partners with community organizations to adapt a smoking cessation program for adults who smoke and receive care at behavioral health clinics. Researchers will enroll 24 participants to test whether the program is feasible and acceptable. The goal is to learn how to be…

This early-phase trial tests whether combining lidocaine and ketamine can reduce severe cancer-related pain that doesn't respond to opioids. Twenty-four adults will receive two weekly infusions of the drug combination or an active placebo in a blinded, crossover design. The goal …

This study is for pregnant people who use tobacco and cannabis and want to quit. Researchers will test a program that helps with depressive symptoms to make quitting easier. The study involves 25 participants and will measure how well the program works and if people stick with it…

This study compares two versions of a smartphone app called Living Free from Tobacco (LiFT) to help young adults ages 18-30 quit using nicotine and tobacco products. About 140 participants will use one of two app versions: one focuses on building mental flexibility to support qui…

This study is testing a smartphone-based system called STAR that uses machine learning to predict when someone with alcohol use disorder might relapse. Participants will complete surveys and use the system to receive personalized recovery support messages. The goal is to see if t…

This study is testing a short, values-based therapy for Veterans who have recently started medication for opioid use disorder (like buprenorphine). The therapy focuses on helping them clarify their personal values, set goals, and improve social connections. The study has three ph…

This study tests a hybrid dialectical behavior therapy (DBT) program for veterans with PTSD who have already completed inpatient treatment. The goal is to reduce lingering symptoms and prevent relapse. About 24 veterans will take part, combining in-person skill groups with online…

This study compares opioid-free anesthesia to standard opioid-based anesthesia in 40 adults undergoing open abdominal aortic aneurysm repair. The goal is to see if avoiding opioids reduces the body's stress response and inflammation during and after surgery. Researchers will meas…

This Canadian study is testing whether cannabinoid oils (CBD and THC) can safely help manage symptoms like pain in children aged 4-17 with relapsed or refractory cancer. The trial will enroll 60 kids across three hospitals, giving them different ratios of CBD to THC oils to see w…

This study tests whether bright light therapy can help people going through cocaine withdrawal in a hospital. Cocaine withdrawal often disrupts sleep, mood, and daily rhythms, making it hard to stay drug-free. The therapy uses a special lamp to mimic daylight, which may improve s…

This early-stage study tests whether mavoglurant, a drug taken as a pill, can reduce alcohol cravings and drinking in people who drink heavily. Researchers will give the drug or a placebo to 63 adults with Alcohol Use Disorder and measure how much they drink and crave alcohol. Th…

This study tests a new program where community health workers provide extra support to pregnant women who smoke. The goal is to help them quit smoking during pregnancy. About 105 women in San Bernardino County will take part and receive coaching to stop tobacco use.

This study tests four virtual coaching sessions to help veterans with chronic pain use their own cannabis products more effectively. Researchers aim to see if coaching improves pain, anxiety, and overall well-being. The trial is recruiting 468 veterans across the U.S.

This study tests whether olanzapine, a medication typically used for mental health conditions, can reduce opioid cravings and misuse in adults with cancer who are on long-term opioid pain therapy. About 87 participants will receive either olanzapine or a placebo to see if it help…

This study looks at two types of nerve blocks given before mastectomy to see which one better prevents chronic pain. About 132 adults having a mastectomy will be randomly assigned to receive either an erector spinae block or a paravertebral block. Researchers will track pain, opi…

This study tests whether a type of talk therapy for insomnia, delivered via telemedicine, can improve sleep and reduce cannabis use in adults who have trouble sleeping and use cannabis regularly. 200 participants will be randomly assigned to either cognitive behavioral therapy fo…

This study tests a program that combines a smartphone breathalyzer, a blood alcohol estimator app, and a brief counseling session to help young adults who drink heavily. Researchers want to see if these tools are easy to use and helpful for drinking more moderately. The study inv…

This study looks at whether a therapy called prolonged exposure, given through video calls, can help people with both opioid use disorder and PTSD. About 135 adults on stable medication for opioid use will take part. The goal is to see if this approach improves therapy attendance…

This study tests a 9-week mindfulness program (MBRP-SA) designed to help cancer survivors quit smoking and reduce heavy drinking. Six hundred participants in Florida will either get the mindfulness program plus nicotine patches or standard quitline support. The goal is to see if …

This study tests whether a personalized exercise program can help smokers who are afraid of bodily sensations (like a racing heart) quit smoking. 360 adults will take part at YMCA locations. The goal is to see if exercise reduces smoking relapse and helps people stay smoke-free f…

This study tests whether adding either dexamethasone or dexmedetomidine to a standard numbing medicine (bupivacaine) in a nerve block can provide longer pain relief after abdominal surgery. About 96 adults aged 25-65 will be enrolled. The goal is to reduce pain and the need for s…

This study tests whether semaglutide, a drug used for diabetes, can help people with type 2 diabetes quit smoking. About 100 adults in Ontario who smoke at least 5 cigarettes daily will receive the drug alongside nicotine replacement therapy. The main goal is to see if a larger s…

This study tests whether a 4-week breathing muscle training program can improve lung function, reduce shortness of breath, and lessen cravings in people with substance use disorder. Thirty-four adults receiving inpatient treatment will either do breathing exercises with a device …

This study tests a free, internet-based program that uses mindfulness and behavioral strategies to help adults reduce or quit smoking and vaping. About 406 participants in Switzerland and Türkiye will be randomly assigned to the program or a control group. The program includes ei…

This pilot study tests whether probenecid, a drug currently used for gout, can reduce withdrawal symptoms in people with chronic pain who are voluntarily lowering their opioid dose. Researchers will enroll 40 adults and randomly assign them to take probenecid or a placebo for 12 …

This study tests a program called the Transitional Pain Service Program for adults who have chronic pain and take opioids before surgery. The program includes pain education, therapy, and a mobile app to help patients manage pain and safely reduce opioid use. Researchers will com…

This study tests a program called Thrive that helps young adults (ages 18-25) with fetal alcohol spectrum disorders (FASD) set personal goals and build support networks. Participants are randomly assigned to start the program right away or after a delay, and then to work individu…

This pilot study tests a smartphone app called eMind that delivers an 8-week mindfulness programme to help smokers quit. Researchers want to see if smokers find the app acceptable and easy to use. The study involves 40 adult smokers motivated to quit, who will use the app and pro…

This study tests whether dronabinol, a synthetic form of THC (the psychoactive compound in cannabis), can reduce severe breathlessness in people with advanced COPD. Thirty participants will receive both dronabinol and a placebo in random order to compare effects. The goal is to s…

This early-phase study at Yale tests whether cannabidiol (CBD) is safe and can reduce pain and opioid cravings in 34 adults with opioid use disorder and chronic pain. Participants are already on methadone or buprenorphine and will receive different doses of CBD or a placebo in a …

This study compares a 3-session couples program (Brief Relationship Checkup) to standard individual care for 360 veterans and their partners who have relationship and mental health concerns. The goal is to see which approach better reduces suicide risk factors by improving relati…

This study tests whether a non-invasive brain stimulation technique called rTMS can help people stop smoking. Researchers will use MRI scans to guide the stimulation to brain areas involved in craving and self-control. The trial involves 64 smokers who will receive either real or…

This pilot study tests whether adding ear acupressure (small seeds taped to ear points) to standard nicotine patches or gum can reduce cravings, withdrawal symptoms, and anxiety in psychiatric inpatients who must stop smoking during their hospital stay. Sixty participants will be…

This study is testing whether a social media and smartphone app program can help teens and young adults who vape to cut back or quit. Participants will be recruited through social media, screened by a chatbot, and given a mobile app with tailored tips and encouragement. The goal …

This study tests a 6-month holistic behavioral health program called EASE for 200 adults with HIV or seeking HIV prevention who also use alcohol or drugs. Participants receive counseling, case management, peer support, and education. Researchers will measure changes in depression…

This study compares two brief behavioral interventions for emerging adults aged 18-25 who use cannabis frequently (at least 20 days per month). Participants attend two 40-50 minute sessions a week apart and are followed for 6 months. The goal is to see if either program helps red…

This study tests whether a continuous pump delivering numbing medicine into the belly can reduce pain and the need for narcotics after minimally invasive hysterectomy. About 120 women having surgery for non-cancer reasons will be randomly assigned to receive either a numbing drug…

This study tests whether a 7-day buprenorphine skin patch can safely control pain after ankle fracture surgery and reduce the need for addictive opioids. About 100 adults who have never taken opioids before will receive either the real patch or a placebo, along with standard pain…

This study tests a brief, virtual cognitive remediation therapy (Action-Based Cognitive Remediation) for young people aged 16-30 with early psychosis who also misuse alcohol or cannabis. The therapy aims to improve thinking skills and reduce substance use. Researchers will enroll…

This study tests if a marijuana-based drug (mostly CBD with a little THC) can reduce anxiety in adults with autism. About 108 people aged 18 to 45 will take the drug or a placebo daily for 8 weeks. Researchers will track anxiety, social skills, and repetitive behaviors through we…

This study tests whether a non-invasive treatment called repetitive transcranial magnetic stimulation (rTMS) can help daily smokers quit. rTMS uses magnetic pulses to stimulate brain areas involved in addiction and decision-making. Forty participants will receive daily sessions f…

This pilot study will test whether short, immersive virtual reality nature sessions can reduce depression, anxiety, and stress in adults with alcohol use disorder who are in an intensive outpatient program. Fifty participants will either receive standard care or add up to 12 VR n…

This study tests whether a non-invasive device that stimulates the vagus nerve in the neck can reduce withdrawal symptoms in people with opioid use disorder. About 103 participants will stay in the hospital for a week, receive either active or sham stimulation, and have brain sca…

This study tests whether specific chest exercises can improve breathing, chest expansion, and exercise capacity in university students who smoke. Thirty smokers aged 18-24 will be split into two groups: one doing chest PNF techniques and the other doing chest mobility exercises. …

This study tests whether a non-invasive device that gently stimulates the vagus nerve can reduce withdrawal symptoms, anxiety, and cravings in 80 veterans with moderate-to-severe alcohol use disorder. Participants will receive the stimulation and complete questionnaires and a bra…

This study tests whether a chatbot powered by large language models can help people with metabolic alcohol-related liver disease (MetALD) reduce their alcohol intake. About 50 adults in Hong Kong will use the chatbot for counseling. The main goal is to see if the approach is prac…

This study is testing whether 12 weeks of group cognitive behavioral therapy (CBT) can help people reduce their alcohol or cannabis use. Researchers will enroll 400 adults with alcohol use disorder or cannabis use disorder. Participants will attend weekly CBT sessions, and the st…

This study tests whether a non-invasive brain stimulation technique called tDCS can help people who vape nicotine daily to cut back. Forty adults aged 18-65 who vape regularly will receive either real or fake tDCS for 10 sessions over two weeks. Researchers will measure changes i…

This study tests whether a specific injection technique called erector spinae plane block (ESPB) reduces pain and opioid use after lumbar spinal fusion better than standard subcutaneous anesthesia. Researchers will enroll 66 adults scheduled for one- or two-level lumbar fusion. P…

This study tests whether a brief motivational interviewing session during a primary care visit can reduce alcohol and cannabis use among diverse teens aged 12 to 17. Researchers will enroll 500 participants who are at risk for substance use and track changes in how often they dri…

This early study tests whether combining a non-invasive brain stimulation technique (rTMS) with a mental exercise called Episodic Future Thinking (imagining positive future events) can help people with methamphetamine use disorder make less impulsive choices and reduce their desi…

This study tests whether a type of talking therapy called Acceptance and Commitment Therapy (ACT) can help people with schizophrenia quit smoking and reduce their psychotic symptoms. Researchers will use brain scans (fMRI) to see if the therapy changes how the brain responds to c…

This study tests whether a dental health evaluation using AI can help people stop smoking. 300 adult smokers who want to quit will get an AI analysis of their mouth and teeth. The main goal is to see if more people have quit smoking after 6 months, confirmed by a breath test.

This study tests whether combining virtual reality with pleasant smells can lower pain and anxiety in people recovering from heart or lung surgery. About 80 adults scheduled for cardiothoracic surgery will either receive the VR-and-scent therapy or standard care. The goal is to s…

This study tests whether brief training in mindfulness or cognitive-behavioral techniques can reduce heavy drinking in young adults aged 18-26. Participants will complete 1-4 training sessions and report their drinking via smartphone. The goal is to see if these techniques help p…

This study tests whether a short writing therapy called Written Exposure Therapy (WET) can help veterans who have both posttraumatic stress disorder (PTSD) and a substance use disorder. About 170 veterans will complete five writing sessions about their trauma. The goal is to see …

This study tests whether the My Health Coach app can improve quality of life and daily functioning for adults with fetal alcohol spectrum disorders (FASD). Two hundred participants will be split into two groups: one gets the app right away, the other waits 12 weeks. Everyone comp…

This study tests a new way to help veterans with PTSD stop smoking. It combines counseling, nicotine gum, and a noninvasive brain stimulation called TMS. Researchers want to see if this approach is practical and helps veterans stay smoke-free for at least 3 months. About 50 veter…

This study tests whether adding pregabalin to the standard withdrawal drug lofexidine helps people with opioid use disorder feel less sick while quitting. About 150 adults who want to start long-acting naltrexone will take either the combination or a placebo for 8 days. The goal …

This study tests an online, 9-week program designed to help parents and caregivers of LGBTQ+ youth of color become more supportive and accepting. Researchers will enroll 180 youth (ages 14-25) and their caregivers to see if the program reduces depression, anxiety, drug use, and o…

This study looks at whether a drug called fampridine, which blocks potassium channels in the brain, can improve working memory in people with cocaine use disorder. Forty chronic cocaine users will receive either the drug or a placebo and then take memory tests. The goal is to und…

This study looks at how social behaviors and feelings of connection impact treatment for opioid use disorder. Researchers will collect daily reports from 230 patients and a close friend or family member over several weeks. The goal is to find patterns that could lead to more pers…

This observational study uses brain scans (MRI) and behavioral tasks to compare people with and without alcohol dependence. Researchers want to see if differences in brain structure and activity relate to personality, behavior, and genetics. Up to 1,000 adults will participate in…

This study aims to create a large data repository by collecting smartphone data and daily surveys from 10,000 adults who use alcohol or drugs. Participants will use an app that tracks phone activity and location, and answer short surveys about mood and substance use. The goal is …

This study looks at whether oral nicotine pouches (like ZYN) can be a good substitute for cigarettes or smokeless tobacco. Researchers will test different nicotine levels and forms to see which ones reduce cravings and appeal to users. 160 adult tobacco users will try the pouches…

This study looks at how the liver processes fat in people with alcohol use disorder who are quitting drinking. Researchers will take two small liver samples—one early in detox and one after four weeks—to compare gene activity. The goal is to understand how the liver clears fat wh…

This study looks at how alcohol changes a brain protein called PDE4B, which may be linked to alcohol use disorder. Healthy social drinkers aged 21 to 70 will have brain scans before and after receiving alcohol. The goal is to understand how alcohol affects this protein, which cou…

This study looks at whether doulas with extra training in mental health support can help pregnant women in rural Montana feel more confident and less depressed. About 75 pregnant women will be split into three groups: one with a specially trained doula, one with a regular doula, …

This study looks at whether giving opioid treatment programs (OTPs) regular reports on how well they retain patients, plus a quality-improvement toolkit, can help more people stay in treatment for at least 90 days. Some clinics will also get extra help from an outside facilitator…

This study is testing whether low-intensity focused ultrasound (LIFUS) can safely change brain activity in people with conditions like Parkinson's disease, essential tremor, epilepsy, or substance abuse. Researchers will use brain recordings and movement tests to see if the ultra…

This study investigates how acetate, a substance produced when the body breaks down alcohol, is used by the brain in heavy drinkers. Researchers will use a special imaging technique to track acetate metabolism and measure stress hormone levels. The goal is to understand the link …

This early-stage study will test how a hemp-based CBD lotion with a small amount of THC is absorbed by the body. Twenty healthy adults will use the lotion in a clean, controlled environment. Researchers will measure cannabinoid levels in saliva, blood, and urine over time to unde…

This early-phase study is looking at how cannabidiol (CBD) affects the appeal and pain-relieving effects of cannabis. Researchers will give 23 healthy adults different doses of CBD for 14 days and then measure how much they like active cannabis and how it changes their pain sensi…

This study tests a new program for adults in prison who have both ADHD and substance use disorder. The program includes workshops to improve care and support. Researchers will check if the program is acceptable and if it improves quality of life.

This study looks at why people taking medications for opioid use disorder often have trouble sleeping. Researchers think special light-sensitive cells in the eye might be involved. They will measure pupil responses, brain waves during sleep, and daily sleep patterns in 200 adults…

This study tests whether a special team of doctors, nurses, and peer supporters can help people with substance use disorders get the follow-up care they need after a hospital stay. The team meets patients in the hospital and provides support and treatment after they leave, helpin…

This study looks at how nicotine changes brain function in people with and without major depressive disorder (MDD). Researchers will give 620 non-smokers either a nicotine patch or a placebo and then scan their brains using MRI. Participants will also answer questions about their…

This study tests a training program called INSPIRE designed for healthcare teams caring for people with substance use disorder during childbirth. The program includes online learning and in-person simulations. Researchers want to see if the training changes healthcare providers' …

This study tests whether suvorexant, a drug approved for insomnia, can reduce cravings and brain responses linked to smoking in daily smokers. Researchers will also study how it affects thinking and reward processing in non-smokers. The goal is to understand if blocking a brain c…

This study uses brain scans to understand why some people relapse to opioid use during treatment. Researchers at Yale will follow 240 adults recently started on methadone or buprenorphine, tracking their brain connectivity and drug use for six months. The goal is to identify patt…

This study will test whether a mobile app that teaches people about how addiction affects the brain is easy to use and acceptable for people receiving medication treatment for opioid or stimulant use disorders. Forty participants will use the app and complete surveys. The goal is…

This study is testing whether a smartphone app can help people in Michigan on Medicaid who are recovering from both opioid and alcohol use disorders. The app uses rewards to encourage healthy behaviors. Researchers want to see if people find the app useful and easy to use, and if…

This trial compares an online training program (COPEWeb) to in-person training for behavioral health providers. The goal is to see if the online version is as effective at teaching providers to deliver a combined treatment for PTSD and substance use disorders. Providers will be r…

This study follows 100 pregnant women with opioid use disorder who are already receiving standard treatment. Researchers will track health outcomes for both mothers and babies, such as relapse and withdrawal symptoms. The goal is to find better ways to predict and prevent complic…

This study will compare how synthetic nicotine and a nicotine analogue (6-methylnicotine) behave in the body versus traditional tobacco-derived nicotine. Twenty-four regular vapers will vape e-liquids containing these substances, and researchers will measure their levels in the b…

This study looks at how people with opioid-use disorder learn and make choices compared to those without the disorder. Participants will complete a computer task where shapes are paired with different food odors. The goal is to understand if differences in learning and decision-m…

This study tests whether a 4-week ketogenic diet changes how the brain responds to alcohol. Twenty adults will follow the diet and undergo alcohol tolerance tests and brain scans before, during, and after the diet. The goal is to understand how ketosis affects alcohol metabolism …

This study is looking at whether detailed heart imaging can help predict heart problems in people with liver cirrhosis who undergo a procedure called TIPSS, which creates a shunt to relieve pressure in the liver. Participants will have heart MRIs and echocardiograms before, short…

This study is developing new MRI techniques to better understand how drug addiction changes the brain. Researchers will scan 1,000 healthy adults, smokers, and drug users to improve imaging methods. The goal is to create tools that can reveal the brain's structure and function in…

This study compares how people use two generations of IQOS heated tobacco devices—the newer IQOS Iluma i and the older IQOS 2.4—and how each affects their smoking behavior and sensory experience. Participants attend two lab visits, use both devices, and have their puffing pattern…

This study follows 700 people with substance use disorders over two years to see how addiction symptoms, especially craving, are connected and whether those connections change as addiction severity shifts. Participants complete annual diagnostic assessments and two-week periods o…

This study looks at whether tirzepatide, a drug used for diabetes and weight loss, can change how the brain responds to alcohol-related cues in people with alcohol use disorder (AUD). Researchers will use brain scans to measure dopamine activity in healthy volunteers and people w…

This study tests how different cannabis packaging designs and health warning labels affect people's perceptions of risk and their intentions to use cannabis. Researchers will show adult cannabis users in states where recreational cannabis is legal a series of hypothetical product…

This pilot study tests whether a specially designed family therapy program is practical and well-liked by women who have opioid use disorder and are involved in the justice system. About 120 women and a family member will take part, with some receiving the therapy plus usual care…

This study aims to find biological markers in the blood that could predict a person's risk of developing opioid use disorder after being prescribed painkillers for a traumatic injury or surgery. Researchers will collect blood samples and health data from 100 adults admitted for t…

This study investigates how a person's genetic makeup influences their response to cannabis, including risk for addiction and psychosis. Healthy adults aged 21-60 receive either a very low or medium dose of THC (the active ingredient in cannabis) or a placebo intravenously. Resea…

This study investigates what happens when exclusive e-cigarette users stop vaping, focusing on withdrawal symptoms like cravings, mood changes, and sleep disruption. Researchers will give participants either a nicotine patch or a placebo patch to see how nicotine affects these sy…

This study follows 180 adults aged 30–75 with chronic pain who are prescribed medical cannabis. Researchers test memory, attention, and problem-solving skills, and use brain scans to see how cannabis compounds affect brain structure and activity. Participants are tracked for four…

This study tests a bundle of smartphone-based tools, including a mobile health app and other online resources, to see if they are practical and helpful for people who use drugs. The goal is to lower overdose risk by improving access to prevention services. Forty participants will…

This study looks at how sex hormones like testosterone, estrogen, and progesterone relate to pain levels and opioid use after surgery in girls aged 11 to 16. Researchers will also examine whether immune factors help explain these effects. The goal is to better understand why pain…

This study looks at how alcohol and substance use affect people with severe mental illnesses like schizophrenia and bipolar disorder. Researchers compare those who also have substance use problems with those who do not, measuring things like hospitalizations, medication needs, em…

This study looks at whether a new quality measurement and coaching strategy can improve treatment for people with opioid use disorder in New York State. Researchers will work with clinic staff to improve how they track and use quality measures. The study involves 35 participants …

This study investigates how flavor (mint vs. fruit) and nicotine strength (2mg vs. 4mg) influence the appeal and abuse liability of oral nicotine gums and pouches. Researchers will recruit 320 young adults aged 21–25 who currently use e-cigarettes exclusively, including a subset …

This study looks at whether a blood test for a marker of heavy drinking (carbohydrate-deficient transferrin, or CDT) can help predict how well critically ill patients will do in the intensive care unit. Researchers will follow 800 adults admitted to the ICU through the emergency …

This study looks at young adults aged 18 to 25 who use both tobacco/nicotine products and cannabis. Researchers want to understand what happens to cannabis use when participants try to quit nicotine. All participants receive remote counseling and incentives to stop using nicotine…

This study uses brain scans (PET) to measure how much dopamine is released after a low dose of amphetamine in people with cocaine use disorder. Researchers want to understand brain changes linked to addiction. About 30 adults aged 18-55 with cocaine use disorder will participate.…

This study uses brain scans to see how stress hormones interact with certain brain receptors in people with cocaine use disorder. Researchers will compare 80 adults with and without the disorder to understand these interactions and whether they predict relapse. The goal is to lea…

This study investigates how THC and CBD in cannabis affect recognition memory in healthy adults who use cannabis regularly. Participants perform a memory task after smoking cannabis and on a separate sober day, while their brain activity is recorded via EEG. Blood samples measure…

This study explores whether a short substance use questionnaire and brief counseling session can be easily added to regular check-ups for adult survivors of childhood cancer. About 30 participants will fill out a screening tool and, if needed, receive supportive counseling during…

This study investigates how depression and cannabis use together affect brain circuits involved in reward and pain in young people living with HIV. Researchers will use MRI scans and questionnaires to measure brain activity, mood, and substance use. The goal is to understand why …

This phase 1 trial at Ohio State University is studying how nicotine analogs compare to regular nicotine in e-cigarettes. Researchers want to understand if these newer chemicals are just as addictive and what they do to the heart and blood vessels. The study involves 70 adult e-c…

This study looks at how THC and CBD, two compounds found in cannabis, affect the body's stress response in people who are sleep-deprived and have higher-than-average anxiety. Sixty healthy volunteers will take either THC, CBD, both, or a placebo after a night of restricted sleep.…

This observational study at Yale University aims to understand how people with opioid use disorder (OUD) learn to avoid pain compared to healthy individuals. About 180 participants will perform a learning task inside an fMRI scanner to measure brain activity. Those with OUD will …

This study aims to find the smallest amount of nicotine that smokers find rewarding or addictive. Researchers will test different nicotine doses in 45 adult smokers to see which dose they can identify and prefer. The goal is to better understand how addiction develops, which coul…

This study follows 32 people with cocaine use disorder as they go through detox. Researchers use wearable sleep monitors, questionnaires, and urine tests to track sleep quality and body rhythms during active use, early withdrawal, and late withdrawal. The goal is to understand ho…

This study uses a special PET scan tracer to measure a brain protein called PDE4B in people with PTSD or alcohol use disorder. Researchers want to see if levels of this protein differ from healthy individuals. The study involves 160 adults aged 18 to 70 and does not offer treatme…

This study looks at whether regular cannabis users can adjust how much they vape when using high-potency concentrates (30%, 60%, and 90% THC). Researchers will measure blood THC levels, puffing behavior, and subjective feelings of intoxication. The goal is to understand if people…

This study looks at how strong desires (cravings) change the way people make decisions. Researchers will use brain scans and decision-making tasks to see how craving for opioids or a specific snack affects what people are willing to pay for items. The study involves 160 adults, i…

This study looks at why some smokers develop COPD while others don't. Researchers will collect lung cells from 40 former smokers using a bronchoscopy and analyze them to find differences in immune cells called macrophages. The goal is to understand the biological reasons behind C…

This study looks at whether a prebiotic supplement can help repair the gut barrier and reduce inflammation in people with HIV who also have alcohol use disorder. Forty participants will take either a prebiotic or a placebo for four weeks, then switch. Researchers will measure gut…

This study looks at how inhaled cannabis affects the brain in people with chronic low back pain. Researchers will use MRI scans to measure changes in brain blood flow and oxygen levels, and ask participants to rate their pain. The goal is to understand the brain mechanisms behind…

This study is looking at how environmental factors in cities—like air pollution, noise, and lack of green space—affect people with depression, anxiety, or alcohol use disorder. Researchers will have 680 participants wear smartwatches to track heart rate, activity, and other body …

This study uses brain scans to see how stress-related proteins change in heavy drinkers compared to healthy people. Researchers give a stress hormone (hydrocortisone) and then scan the brain to measure these proteins. The goal is to understand if these proteins play a role in rel…

This study tests a program to help doctors in psychiatric clinics prescribe medications for alcohol use disorder to patients who also have serious mental illness. The program uses an external facilitator to work with clinic staff and overcome barriers to prescribing. The goal is …

This study looks at how severe alcohol use disorder changes the brain's ability to understand emotions and social cues. Researchers will use brain scans and tests to compare 60 people with the disorder to healthy volunteers. The goal is to learn how these brain changes affect dai…

This study uses repeated fMRI brain scans to track changes in people receiving medication for opioid use disorder. Ten participants will be scanned every two weeks for six months while performing tasks. The goal is to understand how the brain changes during recovery and identify …

This study looks at how a person's mental state—like anxiety, sleep problems, and fear of pain—affects how well numbing medication works during surgery. Researchers will follow 1,000 adults to see if these factors change pain levels, opioid use, and the chance of long-term pain. …

This study looks at how inflammation and liver repair differ in people with alcoholic hepatitis versus those with alcoholic cirrhosis or healthy livers. Researchers will collect blood, liver tissue, and fluid samples from 450 participants. The goal is to better understand what dr…

This study looks at how stopping cannabis use for 28 days changes brain activity and memory in people with psychosis and in cannabis users without psychosis. Participants are randomly assigned to either quit cannabis or continue using, and undergo brain scans before and after the…

This study follows 7,500 heavy drinkers over time to learn how alcoholic liver disease develops and worsens. Researchers will use non-invasive tests like ultrasound and blood markers to identify who is at risk for cirrhosis and liver cancer. The goal is to improve screening and e…

This study aims to create a lab-based test to help screen medications for Alcohol Use Disorder (AUD). Researchers will observe how 90 adults with AUD resist drinking in a controlled setting. The goal is to develop a reliable method to test new treatments, not to provide direct th…

This study is testing a program called Project REACH, which offers telehealth services at syringe service programs (places where people can get clean needles). The goal is to see if this makes it easier for people who use drugs to get HIV prevention (like PrEP) and addiction trea…

This study is observing heavy drinkers with jaundice to learn more about alcoholic hepatitis, a serious liver condition. Researchers will track survival and liver function over 12 months, and collect genetic samples to better understand the disease. The goal is to improve diagnos…

This study follows 35 men in residential rehab for severe substance use. They write weekly stories about their feelings and challenges, and fill out questionnaires every two weeks. Researchers use natural language processing to analyze the stories and look for patterns that might…

This study looks at how stopping smoking for six weeks affects the body's chemistry and gut bacteria in people being treated for substance use disorders. Researchers will compare 100 participants who quit smoking with 50 healthy controls, using blood and stool samples along with …

This study looks at how a single session of exercise changes blood markers related to brain health in people who use cannabis regularly compared to those who don't. Researchers will measure endocannabinoids and other substances in the blood, along with cognitive tests. The goal i…

This study looks at how romantic partners who both smoke can support each other when trying to quit. Researchers will ask 250 couples to fill out daily surveys for two weeks while attempting to quit, tracking their smoking, cravings, and stress. The goal is to understand which ty…

This study aims to see how Jägerbombs (a mix of energy drink and alcohol) affect young adults differently than drinking alcohol alone during a binge-drinking session. Researchers will measure reaction time, coordination, vision, stress hormones, and hangover symptoms in 24 health…

This study is testing how the drugs alprazolam (Xanax) and oxycodone (an opioid) interact when taken together. Researchers will give small, non-therapeutic doses to 25 healthy adults who already use these drugs. They will measure how much participants like the drug combination, a…

This study looks at how the cerebellum, a part of the brain, influences alcohol cravings and reward in people with alcohol use disorder (AUD). Researchers will compare brain activity in people with AUD and healthy volunteers using MRI scans and a mild electrical stimulation techn…

This study tests a program that combines help with quitting smoking and getting a lung cancer screening (a special CT scan) for African American smokers. The goal is to reduce the high rate of lung cancer in this group. About 250 people will take part, and researchers will track …

This study tests a new program designed to help liver doctors provide treatment for alcohol use disorder. The program includes education for doctors and patients, decision support tools, and feedback on performance. Researchers want to see if this approach is practical and accept…

This study tests whether combining neurofeedback with integrative body-mind training can change brain function and reduce cravings and substance use in adults who regularly use alcohol, cannabis, and cigarettes. Researchers will use brain scans to measure changes in connectivity …

This trial tests two types of opioid-free anesthesia in 70 people having weight-loss surgery. One method uses a gas called desflurane, the other uses intravenous drugs. Researchers will measure stress hormones in the blood to see which approach causes less stress on the body. The…

This study is investigating how common cannabis use is among lung cancer patients under 60 and whether it is linked to more aggressive tumors. Researchers will collect blood and hair samples from 150 participants across three French hospitals. The goal is to better understand if …

This study uses brain scans (fMRI) to see what happens in the brain just before a smoker lapses (takes a cigarette during a quit attempt). Researchers will have 150 smokers complete a task where they can delay smoking for money, while their brain activity and feelings are measure…

This study is testing a new center in Seattle where people who have had an opioid overdose can stay for up to 24 hours. The center offers monitoring, medication for opioid use disorder, and connections to ongoing care. Researchers will compare outcomes like repeat overdoses and t…

This study aims to understand what makes it easier or harder for African American smokers to use a smartphone app designed to help them quit. Researchers will first get feedback from a small group to improve the app, then test it with 30 people who want to quit. The app sends rem…

This study aims to understand the different reasons people with alcohol use disorder are motivated to drink. Researchers will give participants IV alcohol and ask them to press a button for more doses, while measuring mood, cravings, and thinking skills. The goal is to link these…

This study looks at whether a special training and support program can help addiction clinics start using contingency management, a proven method that gives rewards to patients who stay off stimulants. Researchers will work with 76 clinics and track how many patients and counselo…

This study looks at how CBD and THC, two compounds found in cannabis, affect inflammation and brain health in people with HIV. About 90 participants will take both substances in a random order over six weeks. Researchers will measure blood markers and brain function to better und…

This study explores why ketamine, a fast-acting antidepressant, works better in people with a family history of alcohol use disorder. Researchers will give a single low-dose ketamine infusion to 60 adults with treatment-resistant depression while scanning their brains with powerf…

This study is collecting information on lifestyle, quality of life, and health markers from 2,000 adults in Greece, including people with chronic diseases, opioid use disorders, and those in prison. The goal is to understand why some groups have worse health and to suggest polici…

This study uses a special PET scan tracer called [11-C]OMAR to measure cannabinoid receptors in the brain. Researchers will compare healthy volunteers to people with schizophrenia, cannabis dependence, PTSD, opioid use disorder, and other conditions. The goal is to understand how…

This study tests a web-based program for romantic partners who are worried about their loved one's drinking. Researchers will use daily surveys from both partners to build personalized feedback that helps the concerned partner communicate better and motivate change. The goal is t…

This study looks at how the drug propranolol and nicotine patches, alone or together, change brain activity and cravings when smokers see smoking-related cues. Eighty daily smokers will undergo brain scans while viewing these cues. The goal is to understand the brain mechanisms b…

This study tests a 10-week parenting program called Parenting in 2 Worlds (P2W), designed specifically for urban American Indian families. Researchers will compare it to a general health program in four U.S. cities with 1,440 parent-teen pairs. The goal is to see if P2W improves …

This study looks at 350 hospitalized patients with alcohol use disorder to find out what makes someone more likely to relapse after detox. Researchers will group patients by shared traits and test a feedback system that shows test results to patients and doctors. The goal is to l…

This study looks at how stress impacts pain, hormone levels, and mood in 120 people with and without HIV, cannabis use disorder, and depression. Participants will complete two sessions of a pain stress task and provide blood samples to measure cortisol and other stress hormones. …

This study looks at how the active ingredient in cannabis, THC, affects men and women differently. Researchers will give THC to 100 healthy adults who have used cannabis before and measure their feelings of being 'high' and memory performance. The goal is to understand why men an…

This study is collecting information from 80 adults who have both ADHD and an addiction. Researchers will track their symptoms and daily functioning over 12 months to better understand how these conditions affect each other. The goal is to gather data that could improve future tr…

This study is recruiting 710 adults with fatty liver disease or alcohol-related liver disease, with or without cirrhosis, to understand why some develop liver cancer. Researchers will analyze genetic markers, immune factors, and imaging data from routine liver biopsies and blood …

This study looks at how sleep and body clocks affect the brains of teenagers and their risk for using substances like alcohol or drugs. Researchers will monitor the sleep patterns and brain activity of 200 healthy teens aged 13-18. The goal is to understand how changes in sleep a…

This study tests whether adding a tool called the Pleasuremeter to standard harm reduction services helps men who have sex with men and transgender people who use drugs or engage in chemsex talk about and improve their sexual pleasure. The goal is to see if people are willing to …

This study looks at how THC, the active part of cannabis, changes people's desire for e-cigarettes and their body's response. Researchers will give different doses of THC to 100 adults who use both e-cigarettes and cannabis, then measure how much they vape, their cravings, heart …

This study interviews 50 transgender adults in Thailand about their chemsex behaviors—reasons, patterns, and impacts—along with stigma and HIV prevention needs. Researchers also gather input from stakeholders to identify barriers and facilitators for creating transgender-friendly…

This study looks at how the brains of teens (ages 15-18) with cannabis use disorder change when they stop using cannabis for 6 weeks. Researchers will use MRI scans to measure brain activity related to reward and impulse control. Some teens will be paid to stay cannabis-free, whi…

This study is gathering information from men who have sex with men who take part in chemsex (using drugs before or during sex) in Bangkok, Thailand. Researchers will survey party hosts and guests about their drug use, sexual health, mental health, and experiences of stigma. The g…

This study looks at how difficult childhood experiences might change brain function and make people more likely to start smoking. Researchers will give a small dose of nicotine or a placebo to 150 nonsmoking young adults aged 18-21, then use brain scans and questionnaires to meas…

This study aims to develop a new tool to measure outcomes in substance use disorder treatment. Researchers will interview patients, caregivers, and clinicians to identify key themes and create a questionnaire. The goal is to provide a more accurate way to assess treatment effecti…

This study looks at how chronic marijuana use changes brain inflammation and thinking abilities in people with HIV. Researchers will use brain scans and blood tests to measure brain health in 220 adults. The goal is to understand the effects, not to test a new treatment.

This study looks at whether special programs for fathers can help families in the Bronx and nearby areas who are at risk for substance misuse. About 240 fathers will be randomly assigned to either get usual services or extra support like counseling, fatherhood classes, and case m…

This study looks at how age and how often someone uses cannabis affect driving skills. Researchers will compare young (19-25) and middle-aged (35-45) drivers who use cannabis occasionally or frequently. Participants will smoke a cannabis cigarette or a placebo and then drive in a…

This study compares two approaches to screening and counseling teens about alcohol and drug use during primary care visits. One approach involves only the teen, while the other includes the whole family. Researchers will follow 2,300 teens and their caregivers for one year to see…

This study follows 20,000 adolescents aged 12-17 who receive opioids after major surgery. Researchers track pain, opioid use, and other factors for one year to identify early warning signs of opioid use disorder. Participants complete surveys and allow access to their medical rec…

This study aims to help Oregon decision-makers—like health officials, community leaders, and policymakers—use up-to-date, easy-to-understand data to improve substance use services and prevent overdoses. About 341 adults who have authority over substance use policies or programs w…

This study looks at whether virtual reality (VR) can measure how smokers pay attention to smoking-related cues, which may help understand nicotine addiction. Two hundred daily smokers will take either a medication (varenicline) or a placebo, and their eye movements and cravings w…

This study looks at whether e-cigarettes or oral nicotine pouches can help people who smoke cigarettes cut down or switch completely. Two hundred adult smokers who have tried to quit before will be randomly assigned to use one of these products instead of cigarettes for six weeks…

This study is building a Canada-wide registry of people who come to emergency departments with opioid poisoning. Researchers will track treatments and outcomes for up to 7,200 patients. The goal is to learn what works best and create a tool to predict who is at highest risk of dy…

This study looks at brain changes in people who use cannabis heavily and want to quit. Researchers will use brain scans to measure a protein linked to brain cell connections, both before and after at least 4 weeks of not using cannabis. They will also test memory to see if brain …

This study looks at whether using a special counseling style called Motivational Interviewing during the first visit can help people stay in addiction treatment. Researchers will compare this approach to the usual intake process. About 150 adults seeking outpatient addiction trea…

This study looks at how daily vapers and cigarette smokers experience withdrawal when they stop using nicotine for 24 hours. Researchers will measure mood, cravings, attention, and other symptoms in 370 participants. The goal is to better understand nicotine dependence and help d…

This study looks at heart electrical patterns (ECGs) in 240 people hospitalized for methamphetamine use, comparing those with and without psychosis. Researchers will check ECGs at admission and before discharge to see if psychosis is linked to more heart strain. The goal is to be…

This study measures two blood proteins, LRFN5 and OLFM4, in people with methamphetamine use disorder, those with methamphetamine-induced psychosis, and healthy volunteers. Researchers want to see if these markers are linked to inflammation and symptom severity. The study involves…

This study is testing whether a new blood test can help tell the difference between depression and schizophrenia, and whether it can show if a treatment is working. Researchers will take blood samples and do mental health check-ins with 500 adults over several visits. The goal is…

This study looks at whether Native American adults who smoke can lower their risk of chronic pain by quitting smoking for 4 weeks. Researchers will measure pain sensitivity and other health markers before and after a stop-smoking program. The goal is to see if this approach is fe…

This study is testing a new way to reduce opioid overdoses on Chicago's West Side. Researchers will train friends and family members of people who use opioids to become harm reduction champions. These champions will learn about tools like naloxone and fentanyl test strips, and th…

This study looks at whether a tool called MyPath helps women with substance use disorder make better decisions about birth control after having a baby. About 400 women will use the tool during pregnancy or right after delivery. The goal is to see if it helps them pick a method th…

This study looks at how natural changes in female sex hormones during the menstrual cycle affect the way women feel and think after using cannabis. Researchers will give 21 women a set dose of THC (the active part of cannabis) or a placebo at different points in their cycle. They…

This study aims to understand why people with chronic pain or opioid use disorder often have worse pain after spine surgery. Researchers will analyze blood and skin samples from 40 participants to look for unique immune and genetic markers linked to pain. The goal is to find bett…