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ClinicalTrials.gov public records Last synced Sep 26, 2026, 8:54 PM EDT

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Showing 1–19 of 19 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Not yet recruiting Phase 1 Interventional Accepts healthy volunteers

Phase 1 Study of Oral MG001

NCT07204171
Conditions
Safety and Tolerability in Healthy Subjects
Interventions
mitragynine, Placebo
Drug
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
18 Years to 65 Years
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
1
States / cities
Overland Park, Kansas
Conditions
Pain, Cancer, Colonic Diseases
Interventions
GIC-1001
Drug
Lead sponsor
gicare Pharma Inc.
Industry
Eligibility
40 Years to 70 Years
Enrollment
308 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
11
States / cities
Scottsdale, Arizona • Anaheim, California • Chula Vista, California + 8 more
Conditions
Postherpetic Neuralgia
Interventions
ADL5747, Placebo, Pregabalin
Drug
Lead sponsor
Cubist Pharmaceuticals LLC, a subsidiary of Merck & Co., Inc. (Rahway, New Jersey USA)
Industry
Eligibility
18 Years to 75 Years
Enrollment
41 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010
U.S. locations
1
States / cities
West Palm Beach, Florida
Completed Not applicable Interventional Accepts healthy volunteers Results available

The Effects of Hydromorphone on Responses to Verbal Tasks

NCT02205983
Conditions
Healthy
Interventions
2 mg hydromorphone, 1000 mg Acetaminophen, 4 mg hydromorphone, dextrose
Drug
Lead sponsor
University of Chicago
Other
Eligibility
18 Years to 40 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
1
States / cities
Chicago, Illinois
Conditions
Irritable Bowel Syndrome
Interventions
Varenicline
Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 70 Years
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025
U.S. locations
1
States / cities
Rochester, Minnesota
Completed Phase 2 Interventional Results available

Impact of Lofexidine on Stress, Craving and Opioid Use

NCT03718065
Conditions
Opioid-use Disorder, Opiate Dependence
Interventions
Lofexidine, Placebo
Drug
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years to 60 Years
Enrollment
112 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2024
U.S. locations
1
States / cities
Charleston, South Carolina
Completed Phase 3 Interventional Results available

Open-Label, Safety Study of Lofexidine

NCT02363998
Conditions
Opioid Withdrawal
Interventions
Lofexidine
Drug
Lead sponsor
USWM, LLC (dba US WorldMeds)
Industry
Eligibility
18 Years and older
Enrollment
286 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015
U.S. locations
18
States / cities
Little Rock, Arkansas • Springdale, Arkansas • San Diego, California + 15 more
Conditions
Opioid Abuse (Disorder), Opioid Analgesia, Opioid Analgesic Adverse Reaction, Opioid Consumption
Interventions
Naproxen, Acetaminophen, oxycodone, Gabapentin
Drug
Lead sponsor
AdventHealth
Other
Eligibility
18 Years and older
Enrollment
260 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2026
U.S. locations
1
States / cities
Orlando, Florida
Active, not recruiting No phase listed Observational Accepts healthy volunteers

Trifecta Research Study

NCT07717866
Conditions
PTSD - Post Traumatic Stress Disorder, Cognitive Dysfunction, Brain Injury, Depression - Major Depressive Disorder, Suicidal Ideation
Interventions
Magnetic e-Resonance Therapy (MeRT), Ibogaine Hydrochloride with Magnesium Sulfate, 5-methoxy-N,N-dimethyltryptamine, Physiological Supplementation
Device · Drug
Lead sponsor
Axial Therapeutic Research
Industry
Eligibility
18 Years and older
Enrollment
52 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2026
U.S. locations
1
States / cities
Northridge, California
Conditions
Constipation
Interventions
SP-333 1 mg, SP-333 3 mg, SP-333 6 mg, Placebo
Drug
Lead sponsor
Bausch Health Americas, Inc.
Industry
Eligibility
18 Years to 75 Years
Enrollment
292 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
42
States / cities
Huntsville, Alabama • Mobile, Alabama • Phoenix, Arizona + 35 more
Conditions
Major Depressive Disorder, Depression
Interventions
Buprenorphine, Naltrexone, Oral Placebo, IM Placebo, Theta burst stimulation (TBS) of the ventromedial prefrontal cortex.
Drug · Device
Lead sponsor
Marta Peciña, MD PhD
Other
Eligibility
18 Years to 55 Years
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2026
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Completed Phase 1 Interventional Accepts healthy volunteers Results available

The Behavioral Effects of Opioids and Alcohol

NCT04300751
Conditions
Opioid Use, Alcohol Drinking
Interventions
Alcohol, Opioid Agonist
Drug
Lead sponsor
Sharon Walsh
Other
Eligibility
21 Years to 55 Years
Enrollment
11 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2024
U.S. locations
1
States / cities
Lexington, Kentucky
Conditions
Osteoarthritis of the Knee
Interventions
ADL5859, ADL5747, Oxycodone CR, Placebo
Drug
Lead sponsor
Cubist Pharmaceuticals LLC, a subsidiary of Merck & Co., Inc. (Rahway, New Jersey USA)
Industry
Eligibility
18 Years to 75 Years
Enrollment
408 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
11
States / cities
Daytona Beach, Florida • Stockbridge, Georgia • Chicago, Illinois + 8 more
Conditions
Anesthesia, Tooth Extraction
Interventions
Midazolam Hydrochloride, Fentanyl, Ketamine, Propofol injection, Nitrous oxide
Drug
Lead sponsor
Albert Einstein College of Medicine
Other
Eligibility
16 Years and older
Enrollment
73 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2024
U.S. locations
1
States / cities
The Bronx, New York
Conditions
Opioid-use Disorder
Interventions
XR-B (SUBLOCADETM), XR-NTX
Drug
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years and older
Enrollment
675 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2025
U.S. locations
6
States / cities
New Haven, Connecticut • Baltimore, Maryland • Hanover, New Hampshire + 3 more
Conditions
Osteoarthritis of the Knee
Interventions
ARRY-371797, p38 inhibitor; oral, Oxycodone hydrochloride (HCl) extended release (ER), opioid agonist; oral, Placebo; oral
Drug
Lead sponsor
Pfizer
Industry
Eligibility
40 Years to 85 Years
Enrollment
157 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2012
U.S. locations
13
States / cities
Phoenix, Arizona • Fort Lauderdale, Florida • Pinellas Park, Florida + 10 more
Conditions
Sickle Cell Disease (SCD), Sickle Cell Disease Vaso-occlusive Crisis, Sickle Cell Anemia Crisis, Sickle Cell Anemia in Children, Sickle Cell Anemia (HbSS, or HbSβ-thalassemia0), Sickle Cell Hemoglobin C Disease, Pain Crisis
Interventions
Buprenorphine Buccal Film [Belbuca]
Drug
Lead sponsor
Natasha Archer
Other
Eligibility
12 Years to 22 Years
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2032
U.S. locations
1
States / cities
Boston, Massachusetts
Conditions
Opioid Use Disorder, Cannabis Use
Interventions
Cannabis, Placebo Cannabis, Intranasal Opioid Agonist, Oral Opioid Agonist
Drug
Lead sponsor
Shanna Babalonis, PhD
Other
Eligibility
18 Years to 55 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2031
U.S. locations
1
States / cities
Lexington, Kentucky
Conditions
Opioid-Use Disorder
Interventions
Placebo, TRV734, Oxycodone
Other · Drug
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
18 Years to 75 Years
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2025
U.S. locations
1
States / cities
Baltimore, Maryland