Substance withdrawal syndrome

Researchers are testing an experimental drug called tezampanel to see if it is safe and can ease opioid withdrawal symptoms in adults with opioid use disorder. The trial enrolls 40 people who are seeking treatment and have recent opioid use. Participants stay in a research center…

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 Phase 2 trial tests whether adding buspirone (an anxiety medication) to lofexidine (a withdrawal drug) can reduce opioid withdrawal symptoms and cravings during detox. About 100 adults with opioid use disorder will stay in a residential setting for 10–12 days, undergo a step…

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 suzetrigine, a new FDA-approved non-opioid pain medication, in 210 adults undergoing total hip replacement. Participants receive either suzetrigine or a placebo for seven days, starting before surgery. The goal is to see if suzetrigine reduces the amount of opioi…

This study is testing a wearable device called Sparrow Link that sends gentle electrical pulses to nerves in the ear to help reduce opioid withdrawal symptoms. About 50 hospitalized adults with opioid use disorder will receive either the active device or a sham version, along wit…

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 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 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 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 is testing three treatments one after another for people with chronic pain who are already taking long-term opioids. First, participants try a low-dose buprenorphine patch (a safer opioid) without going through withdrawal. Then, they receive a brief cognitive behaviora…

This study will follow 40 adults aged 18-70 who currently take tirzepatide, a medication for blood sugar and appetite control. Researchers will temporarily stop the drug for 3-4 weeks and then restart it for 6-8 weeks, using brain scans, questionnaires, and stool samples to track…

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 looks at whether brain activity related to learning can predict how well teens respond to a program aimed at reducing cannabis use. Teens aged 14-17 get a brain scan, then attend 10 weekly virtual sessions where they report use and take drug tests. They can earn prizes…

This study is testing whether a smartwatch can pick up on body changes—like skin temperature—that happen during opioid withdrawal and cravings. Twenty people with opioid use disorder will wear the device for 14 days while their symptoms are tracked. The goal is to see if the watc…

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 how opioid withdrawal symptoms vary from person to person. Sixty adults with opioid use disorder will go through a medically supervised taper using hydromorphone and lofexidine. Researchers will measure withdrawal severity during the taper and after a naloxone…