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ClinicalTrials.gov public records Last synced Oct 28, 2026, 1:37 AM EDT

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Showing 97–120 of 1,427 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: opiates Clear all
Recruiting Phase 4 Interventional

Buprenorphine, Clonidine, and Dexamethasone on Duration of Brachial Plexus Blocks for Upper Extremity Surgery

NCT05824832
View directory record Official record
Conditions
Pain, Postoperative
Interventions
Interscalene block with the addition of buprenorphine, clonidine, dexamethasone, Interscalene block with buprenorphine alone
Drug
Lead sponsor
Loyola University
Other
Eligibility
18 Years and older
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
1
States / cities
Maywood, Illinois
Source: ClinicalTrials.gov public record
Updated Mar 7, 2025 · Synced Oct 28, 2026, 1:37 AM EDT
Completed Phase 4 Interventional Results available

Postoperative Pain Control in Septum and Sinus Surgery

NCT04149964
View directory record Official record
Conditions
Post-operative Pain, Sinus Surgery
Interventions
Acetaminophen 325 mg Oral Tablet, Acetaminophen 650 mg Oral Tablet, OxyCODONE 5 mg Oral Tablet, Acetaminophen/Hydrocodone 325 mg/7.5 mg oral tablet
Drug
Lead sponsor
Corewell Health East
Other
Eligibility
18 Years and older
Enrollment
65 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
1
States / cities
Farmington Hills, Michigan
Source: ClinicalTrials.gov public record
Updated Aug 31, 2023 · Synced Oct 28, 2026, 1:37 AM EDT
Completed Phase 3 Interventional Results available

4-drug Nerve Block Versus Plain Local Anesthetic for Knee and Hip Arthroplasty Analgesia in Veterans

NCT02891798
View directory record Official record
Conditions
Pain
Interventions
Bupivacaine + CBD (clonidine, buprenorphine, dexamethasone), Bupivacaine Only (control arm)
Drug
Lead sponsor
Brian Williams
Federal
Eligibility
18 Years to 85 Years
Enrollment
98 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2021
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jan 14, 2022 · Synced Oct 28, 2026, 1:37 AM EDT
Terminated Not applicable Interventional Results available

Ketamine and Morphine Versus Morphine Alone for the Treatment of Acute Pain in the Emergency Department

NCT01900847
View directory record Official record
Conditions
Acute Pain
Interventions
Ketamine, Morphine, placebo
Drug
Lead sponsor
University of Arizona
Other
Eligibility
18 Years to 100 Years
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
1
States / cities
Tucson, Arizona
Source: ClinicalTrials.gov public record
Updated Jul 17, 2023 · Synced Oct 28, 2026, 1:37 AM EDT
Recruiting Phase 1 Interventional Accepts healthy volunteers

Evaluation of the Safety and Effects of Psychoactive Substances in People With Past Opioid Use

NCT07218549
View directory record Official record
Conditions
Opioid Use, Substance Use Disorders, Opioid Analgesia
Interventions
Placebo, Oxycodone HCl, Kratom 8g, Kratom 12g, Kratom 16g, Kratom 4g
Drug
Lead sponsor
Christopher D. Verrico
Other
Eligibility
18 Years to 55 Years
Enrollment
72 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2029
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Sep 28, 2026 · Synced Oct 28, 2026, 1:37 AM EDT
Completed Phase 2 Interventional Results available

Placebo Controlled Trial of Dextromethorphan in Rett Syndrome

NCT01520363
View directory record Official record
Conditions
Rett Syndrome
Interventions
dextromethorphan, placebo
Drug
Lead sponsor
Hugo W. Moser Research Institute at Kennedy Krieger, Inc.
Other
Eligibility
1 Year to 10 Years
Enrollment
57 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2016
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Dec 4, 2018 · Synced Oct 28, 2026, 1:37 AM EDT
Withdrawn Early Phase 1 Interventional Accepts healthy volunteers

Buprenorphine Induction for Fentanyl Dependent Opioid Users

NCT04794790
View directory record Official record
Conditions
Opioid Dependence Fentanyl
Interventions
Buprenorphine/naloxone
Drug
Lead sponsor
Milton S. Hershey Medical Center
Other
Eligibility
18 Years to 99 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
Harrisburg, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 22, 2024 · Synced Oct 28, 2026, 1:37 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

A Study to Determine the Fasting Bioequivalence of Reformulated OXY Tablets Manufactured at Two Different Facilities

NCT01101308
View directory record Official record
Conditions
Healthy
Interventions
Reformulated OXY (Totowa) (oxycodone HCl), Reformulated OXY (Wilson) (oxycodone HCl)
Drug
Lead sponsor
Purdue Pharma LP
Industry
Eligibility
18 Years to 50 Years
Enrollment
55 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated May 25, 2010 · Synced Oct 28, 2026, 1:37 AM EDT
Completed Phase 2 Interventional

Studies of Dextromethorphan and Topiramate to Treat Oral and Facial Pain

NCT00001725
View directory record Official record
Conditions
Facial Neuralgia, Pain, Trigeminal Neuralgia
Interventions
Dextromethorphan
Drug
Lead sponsor
National Institute of Dental and Craniofacial Research (NIDCR)
NIH
Eligibility
Not listed
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1997 – 2002
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 4, 2008 · Synced Oct 28, 2026, 1:37 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Pharmacokinetic Evaluation of Intranasal, Intramuscular, and Oral Naltrexone in Healthy Volunteers

NCT02750748
View directory record Official record
Conditions
Opioid-Related Disorders
Interventions
Naltrexone, Intravail
Drug · Other
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
18 Years to 55 Years
Enrollment
14 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016
U.S. locations
1
States / cities
Overland Park, Kansas
Source: ClinicalTrials.gov public record
Updated Jan 12, 2017 · Synced Oct 28, 2026, 1:37 AM EDT
Completed No phase listed Observational

Medication Treatment for Opioid Use Disorder in Expectant Mothers: Conceptual Model Assessments Sub-study

NCT03911466
View directory record Official record
Conditions
Opioid-Related Disorders, Drug Addiction, Pregnancy Related, Substance Abuse, Drug Abuse, Neonatal Abstinence Syndrome, Neonatal Opioid Withdrawal Syndrome, Drug Abuse in Pregnancy
Interventions
Buprenorphine Injection, Buprenorphine Sublingual Product
Drug
Lead sponsor
T. John Winhusen, PhD
Other
Eligibility
18 Years to 41 Years · Female only
Enrollment
97 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2024
U.S. locations
12
States / cities
Jacksonville, Florida • Boston, Massachusetts • Albuquerque, New Mexico + 8 more
Source: ClinicalTrials.gov public record
Updated Mar 16, 2026 · Synced Oct 28, 2026, 1:37 AM EDT
Recruiting Phase 2 Interventional Accepts healthy volunteers

A Phase 2 Safety, Tolerability, PK, and Efficacy Study of CS-1103 Following Fentanyl Challenge With Naloxone Blockade

NCT07459166
View directory record Official record
Conditions
Fentanyl Overdose, Fentanyl Poisoning
Interventions
Naloxone Hydrochloride, Fentanyl, Sterile Saline, CS-1103
Drug
Lead sponsor
Clear Scientific, Inc.
Industry
Eligibility
18 Years to 55 Years
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026
U.S. locations
1
States / cities
Glendale, California
Source: ClinicalTrials.gov public record
Updated Aug 24, 2026 · Synced Oct 28, 2026, 1:37 AM EDT
Terminated Phase 4 Interventional Results available

Acute Cough Study In Children

NCT01257542
View directory record Official record
Conditions
Common Cold, Infections, Upper Respiratory Tract
Interventions
Dextromethorphan, Placebo
Drug
Lead sponsor
Pfizer
Industry
Eligibility
6 Years to 11 Years
Enrollment
140 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
4
States / cities
Pinellas Park, Florida • Indianapolis, Indiana • Gresham, Oregon + 1 more
Source: ClinicalTrials.gov public record
Updated Sep 20, 2012 · Synced Oct 28, 2026, 1:37 AM EDT
Withdrawn Phase 4 Interventional

Psychopharmacological Treatment of Emotional Distress

NCT06133114
View directory record Official record
Conditions
Suicide Crisis Syndrome, Psychological Distress
Interventions
Clonazepam, Olanzapine, Buprenorphine
Drug
Lead sponsor
Icahn School of Medicine at Mount Sinai
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jul 28, 2026 · Synced Oct 28, 2026, 1:37 AM EDT
Completed Phase 4 Interventional Results available

The Combination of Adductor Canal Block and Periarticular Injection. A Novel Technique for Patients Undergoing Total Knee Replacement (ACB PAI)

NCT02292082
View directory record Official record
Conditions
Osteoarthritis
Interventions
Bupivacaine, Morphine, Methylprednisolone, Cefazolin, Normal saline, Midazolam, Propofol, Dexamethasone, 8 MHz. Chiba needle, 22 G / 4 inches
Drug · Device
Lead sponsor
Hospital for Special Surgery, New York
Other
Eligibility
18 Years to 80 Years
Enrollment
111 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jan 11, 2019 · Synced Oct 28, 2026, 1:37 AM EDT
Terminated Not applicable Interventional

Intrathecal Hydromorphone for Labor Analgesia

NCT02277782
View directory record Official record
Conditions
Pregnancy
Interventions
Hydromorphone, Hyperbaric bupivacaine, Fentanyl
Drug
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2019
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 18, 2022 · Synced Oct 28, 2026, 1:37 AM EDT
Completed Phase 2 Interventional Results available

Clinical Neuropharmacology of Pain in Spinal Cord Injury- Dextromethorphan Dose Response Clinical Trial

NCT01435798
View directory record Official record
Conditions
Central Neuropathic Pain, Allodynia, Spinal Cord Injury
Interventions
Dextromethorphan
Drug
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years to 70 Years
Enrollment
26 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2008
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 8, 2025 · Synced Oct 28, 2026, 1:37 AM EDT
Completed Not applicable Interventional

Evolution of Analgesic Tolerance With Opioids

NCT00275249
View directory record Official record
Conditions
Chronic Pain
Interventions
levorphanol
Drug
Lead sponsor
University of California, San Francisco
Other
Eligibility
21 Years to 80 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2005
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Apr 14, 2011 · Synced Oct 28, 2026, 1:37 AM EDT
Completed Not applicable Interventional Results available

Methadone in Pediatric and Adult Sickle Cell Patients

NCT00761085
View directory record Official record
Conditions
Sickle Cell Disease
Interventions
Morphine, Methadone
Drug
Lead sponsor
Washington University School of Medicine
Other
Eligibility
7 Years to 40 Years
Enrollment
47 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2010
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Jan 22, 2020 · Synced Oct 28, 2026, 1:37 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Effect of Naloxegol on Gastric, Small Bowel, and Colonic Transit in Healthy Subjects

NCT02737059
View directory record Official record
Conditions
Constipation Drug Induced
Interventions
Naloxegol, Codeine, codeine placebo, naloxegol placebo
Drug
Lead sponsor
Michael Camilleri
Other
Eligibility
18 Years to 65 Years
Enrollment
72 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2017
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Aug 30, 2017 · Synced Oct 28, 2026, 1:37 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Safety and Efficacy Study of Hydromorphone and Morphine

NCT00195910
View directory record Official record
Conditions
Pain
Interventions
Morphine, Hydromorphone
Drug
Lead sponsor
Montefiore Medical Center
Other
Eligibility
21 Years to 65 Years
Enrollment
198 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2005
U.S. locations
1
States / cities
The Bronx, New York
Source: ClinicalTrials.gov public record
Updated Aug 15, 2018 · Synced Oct 28, 2026, 1:37 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Dextromethorphan as a Novel Non-opioid Adjunctive Agent for Pain Control in Medication Abortion

NCT03480009
View directory record Official record
Conditions
Abortion in First Trimester
Interventions
Dextromethorphan Hydrobromide, Avicel PH101 (Microcrystalline Cellulose NF) for Compounding, Oxycodone
Drug
Lead sponsor
Study Investigator-Sponsor
Other
Eligibility
18 Years and older · Female only
Enrollment
156 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
2
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 6, 2020 · Synced Oct 28, 2026, 1:37 AM EDT
Completed Not applicable Interventional Results available

Real-time Decision Support for Postoperative Nausea and Vomiting (PONV) Prophylaxis

NCT02625181
View directory record Official record
Conditions
Postoperative Nausea and Vomiting
Interventions
Automated recommendation at the start of the case, Automated notification at the start of surgery, Preoperative recommendations: by email, Automated notification at the end of surgery, Anesthesia Information Management System (AIMS), Perioperative Data Warehouse (PDW), General anesthesia, Elective surgery, Propofol, Sevoflurane, Isoflurane, Desflurane, Scopolamine, Droperidol, Haloperidol, Dexamethasone, Promethazine, Meclizine, Aprepitant, Metoclopramide, Fentanyl, Sufentanil, Alfentanil, Remifentanil, Morphine, Meperidine, Hydromorphone, Methadone, Oxycodone, Oxymorphone, Hydrocodone, Ketamine, Ondansetron, Granisetron, Dolasetron mesylate, Palonosetron, Tropisetron, Ramosetron
Procedure · Device · Drug
Lead sponsor
Vanderbilt University
Other
Eligibility
18 Years and older
Enrollment
27,034 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Mar 7, 2019 · Synced Oct 28, 2026, 1:37 AM EDT
Completed Phase 4 Interventional Results available

Sub-dissociative Ketamine for the Management of Acute Pediatric Pain

NCT01951963
View directory record Official record
Conditions
Pain
Interventions
Ketamine, Morphine
Drug
Lead sponsor
HealthPartners Institute
Other
Eligibility
3 Years to 17 Years
Enrollment
77 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2015
U.S. locations
1
States / cities
Saint Paul, Minnesota
Source: ClinicalTrials.gov public record
Updated Jul 3, 2018 · Synced Oct 28, 2026, 1:37 AM EDT