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ClinicalTrials.gov public records Last synced Oct 1, 2026, 1:39 PM EDT

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Showing 49–72 of 775 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Morphine sulfate Clear all
Terminated Phase 4 Interventional Results available

Effect of Guanfacine on Opioid-induced Hyperalgesia (OIH) and Tolerance

NCT01681264
View directory record Official record
Conditions
Chronic Pain
Interventions
Morphine, Guanfacine 1mg, Guanfacine 2mg, Placebo
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 65 Years
Enrollment
137 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2023
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 31, 2026 · Synced Oct 1, 2026, 1:39 PM EDT
Completed Phase 4 Interventional Results available

Evaluation of Risk Minimization, Assessment and Outcomes in Patients With Chronic Pain Taking Avinza

NCT00640042
View directory record Official record
Conditions
Pain
Interventions
morphine sulfate extended release capsules
Drug
Lead sponsor
Pfizer
Industry
Eligibility
21 Years and older
Enrollment
1,570 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008
U.S. locations
378
States / cities
Adamsville, Alabama • Phoenix, Arizona • Scottsdale, Arizona + 314 more
Source: ClinicalTrials.gov public record
Updated Jun 11, 2012 · Synced Oct 1, 2026, 1:39 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Comparison of KADIAN 100 mg When Dosed With Alcohol Under Fasting and Fed Conditions Compared to Water

NCT00768183
View directory record Official record
Conditions
Healthy
Interventions
KADIAN Capsule + alcohol (under fasting conditions), KADIAN Capsule + water (under fasting conditions), morphine sulfate IR oral solution + water, KADIAN Capsule + alcohol (under fed conditions)
Drug
Lead sponsor
Actavis Inc.
Industry
Eligibility
21 Years to 40 Years · Male only
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006
U.S. locations
1
States / cities
Lincoln, Nebraska
Source: ClinicalTrials.gov public record
Updated Jul 16, 2020 · Synced Oct 1, 2026, 1:39 PM EDT
Completed Phase 4 Interventional Results available

Intrathecal Opioids for Pain Control After Cesarean Delivery: Determining the Optimal Dose

NCT02009722
View directory record Official record
Conditions
Analgesia, Obstetrical, Cesarean Section
Interventions
Morphine, Hydromorphone
Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older · Female only
Enrollment
84 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jul 25, 2016 · Synced Oct 1, 2026, 1:39 PM EDT
Completed Phase 1 Interventional

Codeine in Mechanically Ventilated Neonates

NCT01322204
View directory record Official record
Conditions
Mechanically Ventilated Neonates, Painful Procedures in Newborns
Interventions
Codeine
Drug
Lead sponsor
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
NIH
Eligibility
Up to 30 Days
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2013
U.S. locations
1
States / cities
Brooklyn, New York
Source: ClinicalTrials.gov public record
Updated Aug 27, 2018 · Synced Oct 1, 2026, 1:39 PM EDT
Completed Phase 3 Interventional Results available

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

NCT01210352
View directory record Official record
Conditions
Post Operative Pain
Interventions
oxymorphone HCl
Drug
Lead sponsor
Endo USA Inc., a Keenova Therapeutics Company
Industry
Eligibility
0 Years to 12 Years
Enrollment
61 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2017
U.S. locations
8
States / cities
Tucson, Arizona • Little Rock, Arkansas • Aurora, Colorado + 5 more
Source: ClinicalTrials.gov public record
Updated Aug 20, 2021 · Synced Oct 1, 2026, 1:39 PM EDT
Terminated Phase 3 Interventional Results available

A Study to Evaluate the Effectiveness and Safety of CG5503 (Tapentadol) in the Treatment of Chronic Tumor Related Pain Compared With Placebo and Morphine

NCT00505414
View directory record Official record
Conditions
Pain, Neoplasm, Cancer
Interventions
Tapentadol in the Titration Phase, Morphine in the Maintenance Phase, Matching Placebo in the Maintenance Phase after Tapentadol in the Titration Phase, Tapentadol in the Maintenance Phase, Morphine in the Titration Phase
Drug
Lead sponsor
Grünenthal GmbH
Industry
Eligibility
18 Years and older
Enrollment
136 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2009
U.S. locations
7
States / cities
St. Petersburg, Florida • Elkhart, Indiana • Shreveport, Louisiana + 4 more
Source: ClinicalTrials.gov public record
Updated Nov 1, 2019 · Synced Oct 1, 2026, 1:39 PM EDT
Completed Phase 3 Interventional Results available

A Multicenter, Randomized, Open-Label, Parallel-Group Trial to Compare the Efficacy and Safety of the Sufentanil NanoTab PCA System/15 mcg (Zalviso™)to Intravenous Patient-Controlled Analgesia With Morphine for the Treatment of Acute Post-Operative Pain

NCT01539538
View directory record Official record
Conditions
Post-Operative Pain
Interventions
Sufentanil NanoTab PCA System/15 mcg, morphine IV PCA
Drug
Lead sponsor
Talphera, Inc
Industry
Eligibility
18 Years and older
Enrollment
357 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012
U.S. locations
16
States / cities
Florence, Alabama • Montgomery, Alabama • Sheffield, Alabama + 13 more
Source: ClinicalTrials.gov public record
Updated Oct 1, 2015 · Synced Oct 1, 2026, 1:39 PM EDT
Completed Phase 3 Interventional Results available

Study to Evaluate the Analgesic Efficacy and Safety of Hydrocodone Bitartrate/Acetaminophen Immediate-Release Tablets in Participants With Moderate to Severe Pain Following Bunionectomy

NCT02487108
View directory record Official record
Conditions
Pain
Interventions
TV-46763, Placebo
Drug
Lead sponsor
Teva Branded Pharmaceutical Products R&D, Inc.
Industry
Eligibility
18 Years to 75 Years
Enrollment
569 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
8
States / cities
Phoenix, Arizona • Anaheim, California • Bakersfield, California + 5 more
Source: ClinicalTrials.gov public record
Updated Mar 31, 2022 · Synced Oct 1, 2026, 1:39 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Neuraxial Ultrasound for Thoracic Epidural Placement

NCT02785055
View directory record Official record
Conditions
Analgesia, Epidural
Interventions
Thoracic Epidural Placement, Bupivacaine 0.05%, Hydromorphone 0.01mg/mL
Procedure · Drug
Lead sponsor
Benaroya Research Institute
Other
Eligibility
18 Years and older
Enrollment
70 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2014
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated May 27, 2016 · Synced Oct 1, 2026, 1:39 PM EDT
Completed Phase 1 Interventional

Study of the Treatment of Experimental Pain in Buprenorphine Maintained Persons With Chronic Musculoskeletal Pain

NCT02372591
View directory record Official record
Conditions
Opioid-Related Disorders, Chronic Pain
Interventions
Buprenorphine, Hydromorphone, Placebo
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 55 Years
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 11, 2017 · Synced Oct 1, 2026, 1:39 PM EDT
Terminated Phase 4 Interventional Results available

Multicenter Study to Compare Intravenous and Oral Acetaminophen for the Treatment of Acute Moderate to Severe Pain

NCT02746263
View directory record Official record
Conditions
Acute Pain, Postoperative
Interventions
IV acetaminophen, Oral acetaminophen, Morphine
Drug
Lead sponsor
Mallinckrodt
Industry
Eligibility
50 Years to 90 Years
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016
U.S. locations
2
States / cities
Pensacola, Florida • Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Nov 19, 2019 · Synced Oct 1, 2026, 1:39 PM EDT
Completed Not applicable Interventional Results available

Exparel Transversus Abdominis Plane Block vs Intrathecal Analgesia In Colorectal Surgery

NCT02356198
View directory record Official record
Conditions
Conditions Requiring Colorectal Surgery
Interventions
EXPAREL, Intrathecal hydromorphone
Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
209 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
1
States / cities
Jacksonville, Florida
Source: ClinicalTrials.gov public record
Updated Mar 7, 2019 · Synced Oct 1, 2026, 1:39 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 1, 2026, 1:39 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Titration of Intravenous Hydromorphone

NCT01892709
View directory record Official record
Conditions
Acute Severe Pain
Interventions
Hydromorphone
Drug
Lead sponsor
Montefiore Medical Center
Other
Eligibility
21 Years to 64 Years
Enrollment
215 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
1
States / cities
The Bronx, New York
Source: ClinicalTrials.gov public record
Updated May 31, 2023 · Synced Oct 1, 2026, 1:39 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Detecting Drugs of Abuse Via Exhaled Breath Samples Using Differential Mobility Spectrometry

NCT05384470
View directory record Official record
Conditions
Opiate Abuse, Marijuana Abuse, Diagnostic
Interventions
Marihuana, BID2 Instrument - breathalyzer
Drug · Device
Lead sponsor
Mclean Hospital
Other
Eligibility
21 Years to 50 Years
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2024
U.S. locations
1
States / cities
Belmont, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 2, 2025 · Synced Oct 1, 2026, 1:39 PM EDT
Not yet recruiting Phase 3 Interventional

An Artificial Intelligence Driven Approach to Optimize Patient Selection for a Transitional Pain Service

NCT07296770
View directory record Official record
Conditions
Postsurgical Pain Management, Postsurgical Pain, Chronic, Opioid Use After Surgery
Interventions
TPS-Select, Pharmacologic Pain Management, Interventional Pain Procedures, Psychological Management and Pain Education, Physical Therapy
Device · Drug · Procedure + 1 more
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
126 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Jul 13, 2026 · Synced Oct 1, 2026, 1:39 PM EDT
Completed Not applicable Interventional

The Efficacy of Tamsulosin in the Treatment of Ureteral Stones in Emergency Department Patients

NCT00600405
View directory record Official record
Conditions
Nephrolithiasis, Ureteral Calculi
Interventions
tamsulosin, Standard therapy with ibuprofen and oxycodone.
Drug
Lead sponsor
MaineHealth
Other
Eligibility
18 Years and older
Enrollment
81 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2007
U.S. locations
1
States / cities
Portland, Maine
Source: ClinicalTrials.gov public record
Updated Jan 25, 2008 · Synced Oct 1, 2026, 1:39 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Acute Pediatric Fracture Analgesia Study

NCT00520442
View directory record Official record
Conditions
Fracture
Interventions
ibuprofen, acetamin w codeine
Drug
Lead sponsor
Medical College of Wisconsin
Other
Eligibility
4 Years to 18 Years
Enrollment
335 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2003 – 2007
U.S. locations
1
States / cities
Milwaukee, Wisconsin
Source: ClinicalTrials.gov public record
Updated Mar 7, 2008 · Synced Oct 1, 2026, 1:39 PM EDT
Completed Phase 4 Interventional

Reducing Pain With Methadone and Ketamine in Liver Transplant

NCT06868589
View directory record Official record
Conditions
Liver Transplantation
Interventions
Methadone, ketamine, Hydromorphone, fentanyl
Drug
Lead sponsor
Lahey Clinic
Other
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
2
States / cities
Burlington, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 11, 2026 · Synced Oct 1, 2026, 1:39 PM EDT
Terminated Early Phase 1 Interventional

Multimodal Pain Management Following Primary TKA

NCT02369523
View directory record Official record
Conditions
Pain
Interventions
Exparel, Ropivacaine cocktail (PIC), Bupivacaine
Drug
Lead sponsor
University of Utah
Other
Eligibility
40 Years to 90 Years
Enrollment
84 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2017
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Aug 15, 2023 · Synced Oct 1, 2026, 1:39 PM EDT
Completed Phase 4 Interventional Results available

Intrathecal Opioids for Colorectal Resection

NCT04752033
View directory record Official record
Conditions
Colorectal Surgery, Pain, Postoperative, Analgesic, Opioid
Interventions
Morphine, Hydromorphone
Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 75 Years
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Mar 26, 2024 · Synced Oct 1, 2026, 1:39 PM EDT
Terminated Phase 4 Interventional Results available

Use of Xtampza ER to Overcome Difficulties in Swallowing Opioid Pills

NCT03588806
View directory record Official record
Conditions
Chronic Pain, Opioid Use, Deglutition
Interventions
Xtampza ER (oxycodone)
Drug
Lead sponsor
Ajay Wasan, MD, Msc
Other
Eligibility
21 Years to 65 Years
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jun 17, 2020 · Synced Oct 1, 2026, 1:39 PM 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 1, 2026, 1:39 PM EDT