Independent directory Public ClinicalTrials.gov records United States
Clinical Trials Finder
Objective public record navigation
Search Results

Search by objective public record fields.

Search by query text, NCT ID, condition, intervention, sponsor, city, state, recruitment status, phase, study type, healthy volunteer eligibility, sex, or age. Results are retrieved from ClinicalTrials.gov and synchronized into the directory. Search pages remain noindex by default.

Clear filters
ClinicalTrials.gov public records Last synced Jul 22, 2026, 5:03 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Showing 1–24 of 62 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Filters: Condition: Hyperalgesia Clear all
Withdrawn Phase 4 Interventional

A Randomized, Double-Blind Study of Placebo vs. Ketamine For Use During Dressing Changes in Critically Ill Burn Patients

NCT02336308
View directory record Official record
Conditions
Thermal Hyperalgesia, Anxiety, Pain
Interventions
Ketamine, Placebo, Normal Saline
Drug
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years to 89 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Nov 25, 2015 · Synced Jul 22, 2026, 5:03 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Effect of Temperature on Pain and Brown Adipose Activity in Fibromyalgia

NCT01322425
View directory record Official record
Conditions
Fibromyalgia, Pain
Interventions
Not listed
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years to 50 Years · Female only
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2014
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Aug 19, 2014 · Synced Jul 22, 2026, 5:03 PM EDT
Completed Not applicable Interventional Results available

Effect of Ketamine on Opioid-Induced Hyperalgesia

NCT00833755
View directory record Official record
Conditions
Pain, Chronic Pain, Hyperalgesia
Interventions
Ketamine, Placebos
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 65 Years
Enrollment
79 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2016
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 22, 2020 · Synced Jul 22, 2026, 5:03 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

MR Spectroscopy as a Diagnostic and Outcome Measure in Pain and SCI

NCT00561782
View directory record Official record
Conditions
Spinal Cord Injury, Hyperalgesia, Secondary, Hyperalgesic Sensations
Interventions
Not listed
Lead sponsor
US Department of Veterans Affairs
Federal
Eligibility
18 Years to 70 Years
Enrollment
94 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2010
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Sep 16, 2014 · Synced Jul 22, 2026, 5:03 PM EDT
Completed Not applicable Interventional Results available

Transversus Abdominis Plane (TAP) Block for Cesarean Section

NCT01015807
View directory record Official record
Conditions
Hyperalgesia, Secondary
Interventions
Bupivacaine Placebo, Clonidine Placebo, Bupivacaine, Clonidine
Drug
Lead sponsor
University of Washington
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
90 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2012
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Oct 22, 2017 · Synced Jul 22, 2026, 5:03 PM EDT
Not listed Phase 2 Interventional

Dose-Finding Study of REN-1654 in Patients With Post-Herpetic Neuralgia

NCT00099528
View directory record Official record
Conditions
Neuralgia, Shingles, Peripheral Nervous System Disease
Interventions
REN-1654
Drug
Lead sponsor
Renovis
Industry
Eligibility
55 Years and older
Enrollment
90 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2004
U.S. locations
16
States / cities
Huntsville, Alabama • Peoria, Arizona • Phoenix, Arizona + 12 more
Source: ClinicalTrials.gov public record
Updated Jul 28, 2010 · Synced Jul 22, 2026, 5:03 PM EDT
Terminated Phase 4 Interventional

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 Apr 23, 2026 · Synced Jul 22, 2026, 5:03 PM EDT
Completed Phase 2 Interventional

Rofecoxib and Bupivacaine to Prevent Pain After Third Molar (Wisdom Tooth) Extraction

NCT00050362
View directory record Official record
Conditions
Pain, Tooth Extraction
Interventions
Rofecoxib and Bupivacaine
Drug
Lead sponsor
National Institute of Dental and Craniofacial Research (NIDCR)
NIH
Eligibility
Not listed
Enrollment
136 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2004
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 3, 2008 · Synced Jul 22, 2026, 5:03 PM EDT
Terminated Phase 2 Interventional Results available

Effect of Ultra-low Dose Naloxone on Remifentanil-Induced Hyperalgesia

NCT03066739
View directory record Official record
Conditions
Hyperalgesia
Interventions
Remifentanil, Remifentanil+ Placebo, Remifentanil +ultra-low dose naloxone
Drug
Lead sponsor
University of California, Irvine
Other
Eligibility
18 Years and older
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
1
States / cities
Orange, California
Source: ClinicalTrials.gov public record
Updated Jun 3, 2026 · Synced Jul 22, 2026, 5:03 PM EDT
Recruiting Not applicable Interventional

Offset Mechanisms in Evaluation of Lumbar Medial Branch Blocks

NCT05961800
View directory record Official record
Conditions
Pain, Chronic, Facet Joint Pain, Pain, Procedural, Analgesia
Interventions
Cutaneous Probe, Quantitative Sensory Testing, Computer Tasks
Behavioral
Lead sponsor
University of Pittsburgh
Other
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2028
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jun 3, 2026 · Synced Jul 22, 2026, 5:03 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

Effect of Valdecoxib Pretreatment on Pain and Secondary Hyperalgesia in Healthy Volunteers

NCT00260325
View directory record Official record
Conditions
Pain, Hyperalgesia
Interventions
valdecoxib
Drug
Lead sponsor
Penn State University
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2006
U.S. locations
1
States / cities
Hershey, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Nov 23, 2017 · Synced Jul 22, 2026, 5:03 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Test Retest Reliability of OA and OH

NCT05487183
View directory record Official record
Conditions
Analgesia, Pain Catastrophizing, Pain
Interventions
Medoc cutaneous probe, Quantitative sensory testing, Computer tasks
Behavioral
Lead sponsor
University of Pittsburgh
Other
Eligibility
18 Years to 50 Years
Enrollment
74 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jun 19, 2024 · Synced Jul 22, 2026, 5:03 PM EDT
Completed Phase 2 Interventional

Rofecoxib to Prevent Pain After Third Molar (Wisdom Tooth) Extraction

NCT00026819
View directory record Official record
Conditions
Pain
Interventions
Rofecoxib
Drug
Lead sponsor
National Institute of Dental and Craniofacial Research (NIDCR)
NIH
Eligibility
Not listed
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2003
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 3, 2008 · Synced Jul 22, 2026, 5:03 PM EDT
Completed Phase 2 Interventional Results available

Clinical Neuropharmacology of Pain in Spinal Cord Injury- Dextromethorphan/Lidocaine Combination Clinical Trial

NCT02218203
View directory record Official record
Conditions
Central Neuropathic Pain, Allodynia, Spinal Cord Injury
Interventions
Dextromethorphan, Lidocaine, Placebo (Dextromethorphan), Placebo (Lidocaine)
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 7, 2025 · Synced Jul 22, 2026, 5:03 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Mechanisms of Sleep Disruption Hyperalgesia

NCT01794689
View directory record Official record
Conditions
Sleep Deprivation, Pain
Interventions
Morphine, Saline Placebo, Forced Awakenings, Uninterrupted Sleep
Drug · Behavioral
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 48 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2019
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 1, 2019 · Synced Jul 22, 2026, 5:03 PM EDT
Completed Phase 4 Interventional Results available

Low Dose Ketamine Study on Opioid Tolerance and Hyperalgesia

NCT01325493
View directory record Official record
Conditions
Idiopathic Scoliosis, Spondylolisthesis
Interventions
Ketamine, Normal Saline
Drug
Lead sponsor
Julia Finkel
Other
Eligibility
10 Years to 18 Years
Enrollment
54 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Jan 13, 2016 · Synced Jul 22, 2026, 5:03 PM EDT
Recruiting Not applicable Interventional

Neural Correlates and Behavioral Impact of Withdrawal-induced Hyperalgesia Among People Who Smoke With and Without Chronic Pain

NCT06983678
View directory record Official record
Conditions
Tobacco Use, Chronic Pain
Interventions
Smoking as usual fMRI session, Abstinent fMRI session
Behavioral
Lead sponsor
Duke University
Other
Eligibility
21 Years to 65 Years
Enrollment
132 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2030
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Nov 19, 2025 · Synced Jul 22, 2026, 5:03 PM EDT
Completed Not applicable Interventional Results available

The Effects of Minocycline in Opioid-maintained Patients

NCT02359006
View directory record Official record
Conditions
Opioid Dependence, Pain
Interventions
Minocycline, Placebo
Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years to 55 Years
Enrollment
27 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
1
States / cities
West Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Mar 5, 2020 · Synced Jul 22, 2026, 5:03 PM EDT
Withdrawn Phase 2 Interventional

Pilot Study to Compare Topical Voriconazole to Placebo as a Pain Reducing Agent

NCT02689713
View directory record Official record
Conditions
Pain, Thermal Injury, Burns, Hyperalgesia
Interventions
Voriconazole (topical), Topical Sterile Water Placebo Group
Drug
Lead sponsor
Kenneth Hargreaves
Other
Eligibility
18 Years to 60 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018
U.S. locations
1
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Dec 16, 2018 · Synced Jul 22, 2026, 5:03 PM EDT
Completed Phase 1 Interventional

Effects of Milnacipran on Widespread Mechanical and Thermal Hyperalgesia of Fibromyalgia Patients

NCT01294059
View directory record Official record
Conditions
Fibromyalgia
Interventions
Milnacipran
Drug
Lead sponsor
University of Florida
Other
Eligibility
30 Years to 65 Years
Enrollment
51 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2014
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Jul 30, 2014 · Synced Jul 22, 2026, 5:03 PM EDT
Completed Phase 4 Interventional Results available

IV Acetaminophen as an Adjunct Analgesic in Cardiac Surgery

NCT01544062
View directory record Official record
Conditions
Acute Pain, Hyperalgesia
Interventions
IV acetaminophen, Placebo
Drug
Lead sponsor
University of Washington
Other
Eligibility
18 Years to 75 Years
Enrollment
68 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Jun 20, 2016 · Synced Jul 22, 2026, 5:03 PM EDT
Completed Not applicable Interventional Results available

The Effect of Intravenous Lidocaine on Allodynia

NCT00659633
View directory record Official record
Conditions
Pain
Interventions
lidocaine
Drug
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
19 Years and older
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2016
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Jul 20, 2017 · Synced Jul 22, 2026, 5:03 PM EDT
Terminated Phase 1 Interventional Accepts healthy volunteers

Pain, Opioids and Pro-Inflammatory Immune Responses

NCT01210066
View directory record Official record
Conditions
Pro-inflammatory Activity, Immunologic Activity Alteration
Interventions
Fentanyl, Cold pressor test, Fentanyl plus cold pressor test
Drug · Other
Lead sponsor
University of California, Los Angeles
Other
Eligibility
21 Years to 40 Years
Enrollment
21 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2012
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Dec 28, 2016 · Synced Jul 22, 2026, 5:03 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Repeated Cannabis Administration on Experimental Pain and Abuse Liability

NCT04576507
View directory record Official record
Conditions
Cannabis, Pain, Tolerance, Hyperalgesia
Interventions
Active Cannabis, Placebo Cannabis
Drug
Lead sponsor
New York State Psychiatric Institute
Other
Eligibility
21 Years to 60 Years
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Aug 7, 2025 · Synced Jul 22, 2026, 5:03 PM EDT