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Showing 1–24 of 62 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Hyperalgesia Clear all
Completed No phase listed Observational Accepts healthy volunteers

Positron Emission Tomography to Measure Pain and Pain Control

NCT00001307
View directory record Official record
Conditions
Healthy, Hyperalgesia, Pain, Peripheral Nervous System Disease
Interventions
Oxygen-15 Water, Capsaicin
Drug
Lead sponsor
National Institute of Dental and Craniofacial Research (NIDCR)
NIH
Eligibility
Not listed
Enrollment
273 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1992 – 2005
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 3, 2008 · Synced Jul 21, 2026, 6:55 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 21, 2026, 6:55 PM EDT
Recruiting Phase 3 Interventional

Fibromyalgia Response With Esreboxetine Evaluated Using a Randomized Withdrawal Research Design

NCT07398417
View directory record Official record
Conditions
Fibromyalgia
Interventions
AXS-14 (Esreboxetine), Placebo
Drug
Lead sponsor
Axsome Therapeutics, Inc.
Industry
Eligibility
18 Years and older
Enrollment
620 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
16
States / cities
Little Rock, Arkansas • Santa Ana, California • Cromwell, Connecticut + 13 more
Source: ClinicalTrials.gov public record
Updated Feb 8, 2026 · Synced Jul 21, 2026, 6:55 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 21, 2026, 6:55 PM EDT
Withdrawn Phase 2 Interventional

Evaluation of a Compliance Marker in Prescription Opioid Abusers With Chronic Pain

NCT02276989
View directory record Official record
Conditions
Compliance, Chronic Pain
Interventions
acetazolamide, Quinine, Riboflavin
Drug
Lead sponsor
Georgetown University
Other
Eligibility
18 Years to 50 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Feb 9, 2017 · Synced Jul 21, 2026, 6:55 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 21, 2026, 6:55 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 21, 2026, 6:55 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 21, 2026, 6:55 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

The Effects of Water Temperature on the Cold Pressor Test

NCT03083626
View directory record Official record
Conditions
Chronic Pain
Interventions
Cold pressor test
Other
Lead sponsor
Georgetown University
Other
Eligibility
21 Years to 65 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2017
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Apr 19, 2017 · Synced Jul 21, 2026, 6:55 PM EDT
Terminated No phase listed Observational

The Effects of Opioid Taper on Opioid-Induced Hyperalgesia

NCT03063905
View directory record Official record
Conditions
Buprenorphine, Pain
Interventions
Buprenorphine
Drug
Lead sponsor
Georgetown University
Other
Eligibility
18 Years to 50 Years
Enrollment
15 participants
Timeline
2017 – 2018
U.S. locations
2
States / cities
Rockville, Maryland • Silver Spring, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 20, 2018 · Synced Jul 21, 2026, 6:55 PM EDT
Completed Phase 4 Interventional

Opiate-Induced Tolerance & Hyperalgesia in Pain Patients

NCT00246532
View directory record Official record
Conditions
Chronic Low Back Pain, Opioid-induced Hyperalgesia
Interventions
Morphine, Placebo
Drug
Lead sponsor
National Institute of General Medical Sciences (NIGMS)
NIH
Eligibility
18 Years to 70 Years
Enrollment
139 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2009
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Apr 29, 2012 · Synced Jul 21, 2026, 6:55 PM EDT
Terminated Phase 2 Interventional Accepts healthy volunteers Results available

Propofol + Remifentanil vs. Propofol + Dexmedetomidine in Adolescent Idiopathic Scoliosis Patients Having Spine Surgery

NCT06096181
View directory record Official record
Conditions
Adolescent Idiopathic Scoliosis, Multimodal Analgesia, Opioid Induced Hyperalgesia, Remifentanil, Dexmedetomidine, Posterior Spinal Fusion
Interventions
Remifentanil TIVA, Dexmedetomidine TIVA, Propofol TIVA
Drug
Lead sponsor
Cedars-Sinai Medical Center
Other
Eligibility
12 Years to 18 Years
Enrollment
13 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Nov 9, 2025 · Synced Jul 21, 2026, 6:55 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 21, 2026, 6:55 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 21, 2026, 6:55 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Study on the Effect of a Beta Blocker on Increased Sensitivity to Pain in Humans Caused by Opioids

NCT01222091
View directory record Official record
Conditions
Hyperalgesia
Interventions
Propranolol, Placebo to Match Propranolol, Remifentanil
Drug
Lead sponsor
Stanford University
Other
Eligibility
18 Years to 45 Years · Male only
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2011
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Jun 14, 2018 · Synced Jul 21, 2026, 6:55 PM EDT
Completed Not applicable Interventional

Dextromethorphan, Gabapentin, and Oxycodone to Treat Opioid-Induced Hyperalgesia

NCT00218374
View directory record Official record
Conditions
Hyperalgesia, Opioid-Related Disorders
Interventions
Gabapentin
Drug
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
18 Years to 55 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2007
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jan 11, 2017 · Synced Jul 21, 2026, 6:55 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 21, 2026, 6:55 PM EDT
Completed Phase 1 Interventional

The Effect of Ablation of Epidermal Nerve Fibers Using Capsaicin Cream

NCT01883102
View directory record Official record
Conditions
Pain
Interventions
Capsaicin 0.1%, Placebo
Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
39 Years and older · Female only
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jun 20, 2013 · Synced Jul 21, 2026, 6:55 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 21, 2026, 6:55 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 21, 2026, 6:55 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 21, 2026, 6:55 PM EDT
Terminated Not applicable Interventional Results available

Effect of Guanfacine on the Reversal of Opioid-induced Hyperalgesia (OIH)

NCT02192398
View directory record Official record
Conditions
Chronic Pain
Interventions
Guanfacine, Placebo
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 65 Years
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2022
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 5, 2026 · Synced Jul 21, 2026, 6:55 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Fenobam on Heat/Capsaicin Induced Hyperalgesia in Healthy Volunteers

NCT01981395
View directory record Official record
Conditions
Hyperalgesia, Allodynia
Interventions
Fenobam, Placebo
Drug
Lead sponsor
Laura Cavallone
Other
Eligibility
18 Years to 50 Years
Enrollment
33 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2016
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Apr 28, 2016 · Synced Jul 21, 2026, 6:55 PM EDT
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 21, 2026, 6:55 PM EDT