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ClinicalTrials.gov public records Last synced Oct 4, 2026, 1:56 PM EDT

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Showing 73–96 of 210 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Morphine or Placebo Clear all
Completed Phase 2 Interventional Results available

Acute Pain Study Following Bunionectomy

NCT01333722
View directory record Official record
Conditions
Pain
Interventions
Hydrocodone/Acetaminophen Extended Release, Placebo
Drug
Lead sponsor
AbbVie (prior sponsor, Abbott)
Industry
Eligibility
18 Years to 75 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011
U.S. locations
3
States / cities
Pasadena, California • Austin, Texas • Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Apr 8, 2014 · Synced Oct 4, 2026, 1:56 PM EDT
Completed Phase 2 Interventional Results available

Hydrocodone/Acetaminophen for Acute Pain Following Third Molar Tooth Extraction

NCT00935311
View directory record Official record
Conditions
Pain
Interventions
ABT-712 Extended-release, Hydrocodone/Acetaminophen Immediate-release, Placebo
Drug
Lead sponsor
AbbVie (prior sponsor, Abbott)
Industry
Eligibility
18 Years to 65 Years
Enrollment
122 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009
U.S. locations
3
States / cities
Austin, Texas • San Marcos, Texas • Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Apr 8, 2014 · Synced Oct 4, 2026, 1:56 PM EDT
Terminated Phase 3 Interventional Results available

Clinical Study to Evaluate the Effectiveness, Safety, and Tolerability of Oxymorphone Immediate Release (IR) Oral Liquid in Post Surgical Pediatric Subjects

NCT02687451
View directory record Official record
Conditions
Post-Operative Pain, Acute Pain
Interventions
Oxymorphone HCl, Placebo
Drug
Lead sponsor
Endo USA Inc., a Keenova Therapeutics Company
Industry
Eligibility
0 Years to 2 Years
Enrollment
28 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2020
U.S. locations
3
States / cities
Durham, North Carolina • Dallas, Texas • Houston, Texas
Source: ClinicalTrials.gov public record
Updated Oct 26, 2021 · Synced Oct 4, 2026, 1:56 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Effects of Hallucinogens and Other Drugs on Mood and Performance

NCT02033707
View directory record Official record
Conditions
Healthy
Interventions
Hallucinogens and psychoactive substances
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
21 Years to 50 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2019
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated May 16, 2019 · Synced Oct 4, 2026, 1:56 PM EDT
Completed Not applicable Interventional Results available

Efficacy of Oral Versus Intravenous Acetaminophen for Primary Pediatric Cleft Palate Repair

NCT01500109
View directory record Official record
Conditions
Cleft Palate
Interventions
Oral acetaminophen, Ofirmev®, Opioid only
Drug
Lead sponsor
Loma Linda University
Other
Eligibility
5 Months to 5 Years
Enrollment
45 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2014
U.S. locations
1
States / cities
Loma Linda, California
Source: ClinicalTrials.gov public record
Updated Jun 9, 2021 · Synced Oct 4, 2026, 1:56 PM EDT
Completed Early Phase 1 Interventional

Trial Comparing a Multi-Modal Pain Protocol With and Without Opioids Following Total Joint Arthroplasty

NCT03845881
View directory record Official record
Conditions
Total Knee Arthroplasty
Interventions
Oxycodone, Placebo Oral Tablet
Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 89 Years
Enrollment
45 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
1
States / cities
Jacksonville, Florida
Source: ClinicalTrials.gov public record
Updated Jul 30, 2020 · Synced Oct 4, 2026, 1:56 PM EDT
Completed Phase 4 Interventional Results available

Effects of a Surgical Site Injection on Pain Scores and Narcotic Use After Orthopaedic Trauma Surgery

NCT03693404
View directory record Official record
Conditions
Pertrochanteric Fracture
Interventions
Marcaine, Duramorph , ketorolac, Bupivacaine (Marcaine), General Anesthetics
Drug
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years and older
Enrollment
190 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2021
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jul 21, 2022 · Synced Oct 4, 2026, 1:56 PM EDT
Recruiting Phase 1Phase 2 Interventional Accepts healthy volunteers

ACTION: Trial of Adding Buprenorphine, CBT, and TMS to Improve Outcomes of Long-Term Opioid Therapy for Chronic Pain

NCT06442566
View directory record Official record
Conditions
Opioid Withdrawal, Chronic Pain
Interventions
Buprenorphine Patch, Placebo, Transcranial Magnetic Stimulation (TMS), Sham Transcranial Magnetic Stimulation (TMS)
Drug · Device
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years and older
Enrollment
240 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2029
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Nov 5, 2025 · Synced Oct 4, 2026, 1:56 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

Cannabis Versus Oxycodone for Pain Relief

NCT02892591
View directory record Official record
Conditions
Back Pain, Neck Pain
Interventions
Cannabis, Oxycodone, Placebo for Cannabis, Placebo for Oxycodone
Drug
Lead sponsor
University of Colorado, Denver
Other
Eligibility
21 Years and older
Enrollment
33 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2023
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Feb 22, 2024 · Synced Oct 4, 2026, 1:56 PM EDT
Terminated Phase 4 Interventional Results available

Low Pain Prediction in Cesarean Section Patients

NCT02143141
View directory record Official record
Conditions
Scheduled Cesarean Sections, Postoperative Pain Management, Side Effects
Interventions
duramorph, placebo
Drug
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
18 Years and older · Female only
Enrollment
13 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2014
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Sep 10, 2018 · Synced Oct 4, 2026, 1:56 PM EDT
Completed Phase 3 Interventional Results available

Transversus Abdominis Plane Block in Microsurgical Breast Recon w/Abdominal Free Flap in Breast CA

NCT02601027
View directory record Official record
Conditions
Breast - Female
Interventions
Transversus Abdominis Plane (TAP) block, Nimbus Infusion Pump IV Administration, Bupivacaine infusion, Acetominophen, Hydromorphone, Oxycodone, Ondansetron
Procedure · Device · Drug
Lead sponsor
Stanford University
Other
Eligibility
18 Years and older · Female only
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2021
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Sep 23, 2021 · Synced Oct 4, 2026, 1:56 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Palonosetron and Hydroxyzine to Reduce Opioid Withdrawal

NCT00661674
View directory record Official record
Conditions
Substance-Related Disorders
Interventions
Palonosetron, Hydroxyzine, Placebo
Drug · Other
Lead sponsor
Stanford University
Other
Eligibility
18 Years to 35 Years · Male only
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Jun 5, 2017 · Synced Oct 4, 2026, 1:56 PM EDT
Withdrawn Not applicable Interventional Accepts healthy volunteers

The Effect of Pain Medication in Children With Acute Abdominal Pain and Its Implication Over the Surgeon's Decision

NCT00839787
View directory record Official record
Conditions
Abdominal Pain
Interventions
Morphine Sulfate
Drug
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
1 Year to 18 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2010
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Jun 25, 2020 · Synced Oct 4, 2026, 1:56 PM EDT
Completed Phase 2 Interventional Results available

Phase 2 Chronic Low Back Pain Study

NCT01364922
View directory record Official record
Conditions
Chronic Low Back Pain
Interventions
hydrocodone/acetaminophen extended release, Placebo
Drug
Lead sponsor
AbbVie (prior sponsor, Abbott)
Industry
Eligibility
18 Years to 75 Years
Enrollment
168 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011
U.S. locations
17
States / cities
Tucson, Arizona • Anaheim, California • Burbank, California + 14 more
Source: ClinicalTrials.gov public record
Updated Jan 29, 2014 · Synced Oct 4, 2026, 1:56 PM EDT
Withdrawn Not applicable Interventional Accepts healthy volunteers

Local Anesthesia and Analgesics in Endodontic Pain

NCT01982799
View directory record Official record
Conditions
Odontalgia
Interventions
Oral placebo, Oral ibuprofen, oral naproxen, oral acetaminophen/hydrocodone + ibuprofen
Drug
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years to 65 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2015
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Nov 3, 2016 · Synced Oct 4, 2026, 1:56 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

A Study to Assess the Effect of AZD4041 on Respiratory Drive in Recreational Opioid Users.

NCT05587998
View directory record Official record
Conditions
Opioid Use Disorder
Interventions
Morphine, AZD4041, Placebo
Drug · Other
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years to 55 Years
Enrollment
45 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Overland Park, Kansas
Source: ClinicalTrials.gov public record
Updated Nov 15, 2024 · Synced Oct 4, 2026, 1:56 PM EDT
Not listed Phase 3 Interventional

Femoral Nerve Block Compared to Exparel in Total Knee Replacement

NCT02473198
View directory record Official record
Conditions
Osteoarthritis, Pain
Interventions
Exparel, Femoral Nerve Block Bupivacaine, Toradol, Morphine Sulfate
Drug
Lead sponsor
The New England Baptist Hospital
Other
Eligibility
18 Years to 73 Years
Enrollment
312 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2017
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 17, 2016 · Synced Oct 4, 2026, 1:56 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Safety, Tolerability and Pharmacokinetics of NYX-783 and Oxycodone DDI Study

NCT05447286
View directory record Official record
Conditions
Opioid Use Disorder
Interventions
NYX-783, Placebo, Oxycodone
Drug
Lead sponsor
Yale University
Other
Eligibility
21 Years to 58 Years
Enrollment
9 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
2
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Mar 25, 2025 · Synced Oct 4, 2026, 1:56 PM EDT
Completed Phase 1 Interventional Results available

A Study to Assess the Safety, Tolerability and Pharmacokinetics of Multiple Doses of ASP8062 With a Single Dose of Morphine in Recreational Opioid Using Participants

NCT04448561
View directory record Official record
Conditions
Opioid Use Disorder
Interventions
ASP8082, morphine, Placebo
Drug
Lead sponsor
Astellas Pharma Global Development, Inc.
Industry
Eligibility
18 Years to 60 Years
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
1
States / cities
Overland Park, Kansas
Source: ClinicalTrials.gov public record
Updated Nov 21, 2024 · Synced Oct 4, 2026, 1:56 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

The Effects of Hydromorphone on Responses to Verbal Tasks

NCT02205983
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Oct 9, 2018 · Synced Oct 4, 2026, 1:56 PM EDT
Completed Phase 3 Interventional

A Study of Pain Relief in Osteoarthritis

NCT00298974
View directory record Official record
Conditions
Osteoarthritis
Interventions
hydrocodone / acetaminophen extended release, Placebo
Drug
Lead sponsor
Abbott
Industry
Eligibility
21 Years to 80 Years
Enrollment
873 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2007
U.S. locations
83
States / cities
Birmingham, Alabama • Mobile, Alabama • Phoenix, Arizona + 68 more
Source: ClinicalTrials.gov public record
Updated Jan 25, 2011 · Synced Oct 4, 2026, 1:56 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Assessment of Abuse Potential of Cebranopadol in Humans

NCT05256108
View directory record Official record
Conditions
Human Abuse Potential
Interventions
Oxycodone 40 mg, Tramadol 600 mg, Placebo, Cebranopadol 600 µg, Cebranopadol 1000 µg
Drug
Lead sponsor
Tris Pharma, Inc.
Industry
Eligibility
18 Years to 55 Years
Enrollment
38 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Jul 27, 2022 · Synced Oct 4, 2026, 1:56 PM EDT
Active, not recruiting Phase 3 Interventional

Fentanyl Buccal Tablet or Morphine for Exertional Dyspnea in Cancer Patients

NCT04188418
View directory record Official record
Conditions
Hematopoietic and Lymphoid Cell Neoplasm, Malignant Solid Neoplasm
Interventions
Fentanyl Citrate Buccal Tablet, Morphine, Physical Performance Testing, Placebo Administration, Quality-of-Life Assessment, Questionnaire Administration
Drug · Other
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2027
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Aug 11, 2026 · Synced Oct 4, 2026, 1:56 PM EDT
Completed Phase 3 Interventional Results available

A Study to Evaluate the Effectiveness and Safety of Tapentadol (CG5503) in the Treatment of Acute Pain From Bunionectomy.

NCT00613938
View directory record Official record
Conditions
Arthralgia, Bunion, Hallux Valgus, Pain
Interventions
Tapentadol (CG5503), oxycodone, placebo
Drug
Lead sponsor
Johnson & Johnson Pharmaceutical Research & Development, L.L.C.
Industry
Eligibility
18 Years to 80 Years
Enrollment
901 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008
U.S. locations
7
States / cities
Glendale, California • Pasadena, Maryland • Austin, Texas + 4 more
Source: ClinicalTrials.gov public record
Updated May 9, 2014 · Synced Oct 4, 2026, 1:56 PM EDT