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ClinicalTrials.gov public records Last synced May 21, 2026, 9:06 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 60 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Hyperalgesia Clear all
Terminated Not applicable Interventional
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 Apr 23, 2026 · Synced May 21, 2026, 9:06 PM EDT
Completed No phase listed Observational Accepts healthy volunteers
View directory record Official record
Conditions
Pain
Interventions
Not listed
Lead sponsor
The University of Texas Health Science Center at San Antonio
Other
Eligibility
18 Years to 50 Years
Enrollment
11 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2001 – 2008
U.S. locations
1
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Mar 7, 2012 · Synced May 21, 2026, 9:06 PM EDT
Recruiting Phase 1 Interventional
View directory record Official record
Conditions
Chronic Pain, Chronic Pain Syndrome, Chronic Pancreatitis, Hyperalgesia, Opioid Use Disorder, Opioid-Related Disorders, Opioid Dependence, Chronic Abdominal Pain, ERCP, Pancreatic Surgery
Interventions
Lacosamide
Drug
Lead sponsor
Indiana University
Other
Eligibility
18 Years and older
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
5
States / cities
Stanford, California • Indianapolis, Indiana • Rochester, Minnesota + 2 more
Source: ClinicalTrials.gov public record
Updated May 10, 2026 · Synced May 21, 2026, 9:06 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Healthy, Hyperalgesia, Pain
Interventions
Blood draw, Oral surgery, Tissue biopsy
Procedure
Lead sponsor
National Institute of Dental and Craniofacial Research (NIDCR)
NIH
Eligibility
Not listed
Enrollment
800 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2000 – 2005
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jun 29, 2006 · Synced May 21, 2026, 9:06 PM EDT
Completed Phase 2 Interventional
View directory record Official record
Conditions
Chronic Low Back Pain, Lumbar Radiculopathy
Interventions
Low-dose naltrexone and acetaminophen combination, Placebo
Drug
Lead sponsor
Allodynic Therapeutics, Inc
Industry
Eligibility
18 Years and older
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
1
States / cities
North Miami, Florida
Source: ClinicalTrials.gov public record
Updated Apr 13, 2021 · Synced May 21, 2026, 9:06 PM EDT
Terminated Not applicable Interventional
View directory record Official record
Conditions
Chronic Pain
Interventions
Cognitive Behavioral Therapy
Behavioral
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 7, 2019 · Synced May 21, 2026, 9:06 PM EDT
Recruiting Not applicable Interventional
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 – 2026
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 28, 2025 · Synced May 21, 2026, 9:06 PM EDT
Completed Phase 1 Interventional
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 May 21, 2026, 9:06 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers
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 May 21, 2026, 9:06 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers
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 May 21, 2026, 9:06 PM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Pain, Hyperalgesia
Interventions
Smoked Cannabis
Drug
Lead sponsor
Center for Medicinal Cannabis Research
Other
Eligibility
18 Years to 90 Years
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2002 – 2004
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Jun 22, 2006 · Synced May 21, 2026, 9:06 PM EDT
Completed Phase 2 Interventional
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 May 21, 2026, 9:06 PM EDT
Completed Phase 3 Interventional Results available
View directory record Official record
Conditions
Wound Care, Pain Intensity, Hyperalgesia, Nausea, Vomiting, Hallucinations
Interventions
Morphine plus Ketamine, Morphine plus Saline (placebo)
Drug
Lead sponsor
University of California, San Francisco
Other
Eligibility
21 Years to 65 Years
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2009
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Mar 25, 2024 · Synced May 21, 2026, 9:06 PM EDT
Completed No phase listed Observational Accepts healthy volunteers
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 May 21, 2026, 9:06 PM EDT
Completed Phase 4 Interventional
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 May 21, 2026, 9:06 PM EDT
Terminated Phase 1 Interventional Accepts healthy volunteers
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 May 21, 2026, 9:06 PM EDT
Terminated Phase 2 Interventional Accepts healthy volunteers Results available
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 May 21, 2026, 9:06 PM EDT
Completed Phase 2 Interventional Results available
View directory record Official record
Conditions
Central Neuropathic Pain, Allodynia, Spinal Cord Injury
Interventions
Dextromethorphan
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 May 21, 2026, 9:06 PM EDT
Completed Phase 2 Interventional Results available
View directory record Official record
Conditions
Neuropathy, Paraneoplastic
Interventions
MC-5A, Sham device
Device · Drug
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years and older
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2012
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Dec 1, 2019 · Synced May 21, 2026, 9:06 PM EDT
Not listed Phase 2 Interventional
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 May 21, 2026, 9:06 PM EDT
Completed Not applicable Interventional Results available
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 May 21, 2026, 9:06 PM EDT
Completed Phase 2 Interventional Results available
View directory record Official record
Conditions
Opioid-Induced Hyperalgesia
Interventions
Gabapentin;, Placebo
Drug
Lead sponsor
University of California, Los Angeles
Other
Eligibility
21 Years to 55 Years
Enrollment
26 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2010
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Apr 5, 2012 · Synced May 21, 2026, 9:06 PM EDT
Completed Not applicable Interventional Results available
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 May 21, 2026, 9:06 PM EDT
Terminated Phase 4 Interventional
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 May 21, 2026, 9:06 PM EDT