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Showing 1–24 of 61 matching trials from the live ClinicalTrials.gov search.
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Completed Phase 3 Interventional Results available

Phase 3 Study of Hydrocodone Bitartrate Controlled-release Capsules in Subjects With Chronic Low Back Pain

NCT01081912
View directory record Official record
Conditions
Back Pain Lower Back Chronic
Interventions
Placebo, Hydrocodone bitartrate
Drug
Lead sponsor
Zogenix, Inc.
Industry
Eligibility
18 Years to 75 Years
Enrollment
510 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
51
States / cities
Phoenix, Arizona • Jonesboro, Arkansas • Anaheim, California + 47 more
Source: ClinicalTrials.gov public record
Updated Dec 7, 2022 · Synced Sep 10, 2026, 4:16 PM EDT
Completed Phase 1Phase 2 Interventional

Pramipexole and Morphine for Renal Colic

NCT04160520
View directory record Official record
Conditions
Renal Colic
Interventions
Pramipexole, Morphine, Placebo oral tablet
Drug
Lead sponsor
East Carolina University
Other
Eligibility
19 Years to 66 Years
Enrollment
19 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2023
U.S. locations
1
States / cities
Greenville, North Carolina
Source: ClinicalTrials.gov public record
Updated Mar 7, 2023 · Synced Sep 10, 2026, 4:16 PM EDT
Completed Phase 3 Interventional Results available

Efficacy and Safety of Oxycodone/Naloxone Controlled-release Tablets (OXN) Compared to Placebo in Opioid-experienced Subjects With Moderate to Severe Chronic Low Back Pain

NCT01358526
View directory record Official record
Conditions
Low Back Pain
Interventions
Oxycodone/Naloxone Controlled-release, Placebo
Drug
Lead sponsor
Purdue Pharma LP
Industry
Eligibility
18 Years and older
Enrollment
1,095 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2012
U.S. locations
151
States / cities
Birmingham, Alabama • Haleyville, Alabama • Huntsville, Alabama + 123 more
Source: ClinicalTrials.gov public record
Updated Nov 10, 2015 · Synced Sep 10, 2026, 4:16 PM EDT
Completed Phase 3 Interventional Results available

Study to Evaluate the Safety and Efficacy of ABT-712 in Subjects With Moderate to Severe Chronic Low Back Pain (CLBP)

NCT00763321
View directory record Official record
Conditions
Chronic Low Back Pain
Interventions
ABT-712, Placebo
Drug
Lead sponsor
AbbVie (prior sponsor, Abbott)
Industry
Eligibility
21 Years to 75 Years
Enrollment
287 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2009
U.S. locations
31
States / cities
Huntsville, Alabama • Burbank, California • San Diego, California + 27 more
Source: ClinicalTrials.gov public record
Updated Feb 5, 2014 · Synced Sep 10, 2026, 4:16 PM EDT
Completed Phase 3 Interventional

Analgesic Efficacy and Management of Opioid-induced Constipation (OIC) for Uncontrolled Moderate - Severe Low Back Pain

NCT01427270
View directory record Official record
Conditions
Low Back Pain
Interventions
Oxycodone/Naloxone controlled-release, Oxycodone HCl controlled-release, Placebo
Drug
Lead sponsor
Purdue Pharma LP
Industry
Eligibility
18 Years and older
Enrollment
455 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2014
U.S. locations
170
States / cities
Alabaster, Alabama • Birmingham, Alabama • Gulf Shores, Alabama + 137 more
Source: ClinicalTrials.gov public record
Updated Nov 6, 2014 · Synced Sep 10, 2026, 4:16 PM EDT
Completed Not applicable Interventional Results available

Reduced Opioid Analgesic Requirements Via Improved Endogenous Opioid Function

NCT02469077
View directory record Official record
Conditions
Chronic Pain
Interventions
6 week aerobic exercise intervention, Placebo, Morphine, naloxone
Behavioral · Drug
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
18 Years to 55 Years
Enrollment
117 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2019
U.S. locations
2
States / cities
Chicago, Illinois • Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Sep 22, 2020 · Synced Sep 10, 2026, 4:16 PM EDT
Recruiting Early Phase 1 Interventional Accepts healthy volunteers

Evaluating a Potential Pharmacokinetic Kratom-oxycodone Interaction Concurrent With Clinical Endpoints

NCT05846451
View directory record Official record
Conditions
Herbal Interaction
Interventions
Kratom, Oxycodone
Dietary Supplement · Drug
Lead sponsor
Washington State University
Other
Eligibility
21 Years to 45 Years
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2026
U.S. locations
1
States / cities
Spokane, Washington
Source: ClinicalTrials.gov public record
Updated Jun 2, 2026 · Synced Sep 10, 2026, 4:16 PM EDT
Recruiting Phase 2 Interventional

Assessment of Medrol Dosepak to Reduce Opioid Consumption in Foot and Ankle Surgical Patients

NCT06780202
View directory record Official record
Conditions
Foot Injuries and Disorders, Ankle Injuries and Disorders, Achilles Tendon Injury
Interventions
medrol dosepak, HYDROcodone Oral Tablet
Drug
Lead sponsor
Emory University
Other
Eligibility
18 Years to 95 Years
Enrollment
180 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
2
States / cities
Atlanta, Georgia • Johns Creek, Georgia
Source: ClinicalTrials.gov public record
Updated Mar 8, 2026 · Synced Sep 10, 2026, 4:16 PM EDT
Completed Not applicable Interventional

Family-Based Treatment for Parental Substance Abuse and Child Maltreatment

NCT01656837
View directory record Official record
Conditions
Substance Abuse, Child Abuse, Child Neglect
Interventions
Comprehensive Community Treatment, MST-BSF
Behavioral
Lead sponsor
Medical University of South Carolina
Other
Eligibility
6 Years and older
Enrollment
191 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2016
U.S. locations
1
States / cities
New Britain, Connecticut
Source: ClinicalTrials.gov public record
Updated Sep 29, 2016 · Synced Sep 10, 2026, 4:16 PM EDT
Completed Phase 3 Interventional Results available

Study Evaluating Safety and Efficacy of Dexmedetomidine (DEX) in Intubated and Mechanically Ventilated Pediatric Intensive Care Unit (PICU) Subjects

NCT00875550
View directory record Official record
Conditions
Sedation
Interventions
Dexmedetomidine, Midazolam, Fentanyl, Morphine
Drug
Lead sponsor
Hospira, now a wholly owned subsidiary of Pfizer
Industry
Eligibility
1 Month to 16 Years
Enrollment
175 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
33
States / cities
Phoenix, Arizona • Little Rock, Arkansas • Loma Linda, California + 27 more
Source: ClinicalTrials.gov public record
Updated Aug 13, 2015 · Synced Sep 10, 2026, 4:16 PM EDT
Completed Phase 4 Interventional Results available

Low Dose Ketamine (LDK) Versus Morphine for Acute Pain Control in the Emergency Department

NCT01538745
View directory record Official record
Conditions
Abdomen, Acute, Other Acute Pain, Flank Pain, Back Pain, Musculoskeletal Pain
Interventions
Ketamine, Morphine
Drug
Lead sponsor
Brooke Army Medical Center
Federal
Eligibility
18 Years to 59 Years
Enrollment
45 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
1
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Feb 3, 2021 · Synced Sep 10, 2026, 4:16 PM EDT
Completed Phase 3 Interventional Results available

Efficacy and Safety of Hydrocodone Bitartrate (HYD) in Subjects With Moderate to Severe Chronic Low Back Pain

NCT01452529
View directory record Official record
Conditions
Chronic Low Back Pain
Interventions
Hydrocodone bitartrate q24h film-coated tablets, Placebo to match hydrocodone bitartrate q24h tablets
Drug
Lead sponsor
Purdue Pharma LP
Industry
Eligibility
18 Years and older
Enrollment
905 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
102
States / cities
Birmingham, Alabama • Mobile, Alabama • Phoenix, Arizona + 83 more
Source: ClinicalTrials.gov public record
Updated Mar 9, 2020 · Synced Sep 10, 2026, 4:16 PM EDT
Withdrawn Phase 2 Interventional

Comparison of Low-dose Ketamine to Opioids in the Management of Acute Pain in Patients Presenting to the Emergency Department With Long Bone Fractures

NCT04061330
View directory record Official record
Conditions
Pain, Acute
Interventions
Ketamine, Morphine
Drug
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
18 Years to 64 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Apr 26, 2022 · Synced Sep 10, 2026, 4:16 PM EDT
Completed Phase 2 Interventional

Pain Treatment for Sciatica

NCT00009672
View directory record Official record
Conditions
Radiculopathy, Sciatica
Interventions
Nortriptyline, Morphine
Drug
Lead sponsor
National Institute of Dental and Craniofacial Research (NIDCR)
NIH
Eligibility
19 Years and older
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2006
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 1, 2017 · Synced Sep 10, 2026, 4:16 PM EDT
Completed Phase 4 Interventional

Stress and Opioid Misuse Risk: The Role of Endogenous Opioid and Endocannabinoid Mechanisms

NCT05142267
View directory record Official record
Conditions
Opioid Use Disorder, Back Pain, Stress
Interventions
Placebo, Oxycodone, Naloxone
Drug
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
18 Years and older
Enrollment
101 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Sep 3, 2026 · Synced Sep 10, 2026, 4:16 PM EDT
Completed Phase 3 Interventional

A Study of Pain Relief in Low Back Pain

NCT00325949
View directory record Official record
Conditions
Chronic Low Back Pain
Interventions
Extended release hydrocodone and acetaminophen (Vicodin CR), hydrocodone/acetaminophen extended release (Vicodin CR), placebo
Drug
Lead sponsor
Abbott
Industry
Eligibility
21 Years to 75 Years
Enrollment
770 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2007
U.S. locations
63
States / cities
Hueytown, Alabama • Phoenix, Arizona • Tempe, Arizona + 52 more
Source: ClinicalTrials.gov public record
Updated Jul 24, 2011 · Synced Sep 10, 2026, 4:16 PM EDT
Withdrawn Phase 4 Interventional

An Open-label Evaluation of Tapentadol Extended Release (ER) in Participants With Moderate to Severe Chronic Pain After Conversion From Hydrocodone, Oxycodone Controlled Release (CR), and/or Morphine Sustained Release (SR)

NCT01631513
View directory record Official record
Conditions
Pain, Chronic Back Pain, Chronic Low Back Pain, Osteoarthritis Pain In The Hip or Knee
Interventions
Nucynta ER
Drug
Lead sponsor
Janssen Scientific Affairs, LLC
Industry
Eligibility
18 Years to 74 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
7
States / cities
Jacksonville, Florida • Prairie Village, Kansas • Mandeville, Louisiana + 4 more
Source: ClinicalTrials.gov public record
Updated Jan 24, 2018 · Synced Sep 10, 2026, 4:16 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 9, 2018 · Synced Sep 10, 2026, 4:16 PM EDT
Completed Phase 1Phase 2 Interventional

Effects of Buprenorphine/Naloxone Dose on Experimental Stress Reactivity and Opioid Abstinence

NCT03015246
View directory record Official record
Conditions
Heroin Dependence, Opioid Use Disorder
Interventions
Extended release morphine, Buprenorphine/Naloxone low dose, Buprenorphine/Naloxone moderate dose, Buprenorphine/Naloxone high dose, Active stressor, Placebo stressor
Drug
Lead sponsor
Wayne State University
Other
Eligibility
18 Years to 55 Years
Enrollment
26 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2020
U.S. locations
1
States / cities
Overland Park, Kansas
Source: ClinicalTrials.gov public record
Updated Nov 9, 2020 · Synced Sep 10, 2026, 4:16 PM EDT
Completed Phase 1 Interventional

Sensory Effects of Oral Opioid Treatment in Patients With Chronic Low Back Pain

NCT02824276
View directory record Official record
Conditions
Low Back Pain
Interventions
Oxycodone or morphine sulfate immediate release (MSIR), Placebo Treatment
Drug
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
25 Years to 65 Years
Enrollment
35 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2025
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 3, 2026 · Synced Sep 10, 2026, 4:16 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Brain Effects of Opiate Agonist and Antagonist

NCT04342130
View directory record Official record
Conditions
Chronic Low-back Pain
Interventions
Morphine
Drug
Lead sponsor
University of Rochester
Other
Eligibility
18 Years to 65 Years
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated May 6, 2021 · Synced Sep 10, 2026, 4:16 PM EDT
Completed No phase listed Observational

Very Low Dose Caudal Morphine for Postoperative Pain Management

NCT00938821
View directory record Official record
Conditions
Caudal Anesthesia
Interventions
Caudal block
Procedure
Lead sponsor
University of Oklahoma
Other
Eligibility
1 Month to 10 Years
Enrollment
33 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
1
States / cities
Oklahoma City, Oklahoma
Source: ClinicalTrials.gov public record
Updated Nov 20, 2017 · Synced Sep 10, 2026, 4:16 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 28, 2014 · Synced Sep 10, 2026, 4:16 PM EDT
Terminated Not applicable Interventional Results available

Continuous Intercostal Nerve Blockade for Traumatic Rib Fractures

NCT02604589
View directory record Official record
Conditions
Rib Fractures
Interventions
hydromorphone hydrochloride, Infusion catheter placement, bupivicaine 0.25%, bupivicaine 0.5%
Drug · Procedure
Lead sponsor
Anthony Iacco
Other
Eligibility
18 Years and older
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016
U.S. locations
1
States / cities
Royal Oak, Michigan
Source: ClinicalTrials.gov public record
Updated May 11, 2017 · Synced Sep 10, 2026, 4:16 PM EDT