Independent directory Public ClinicalTrials.gov records United States
Clear filters
ClinicalTrials.gov public records Last synced Sep 16, 2026, 10:16 AM 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.
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
Completed Not applicable Interventional Results available

Transversus Abdominis Plane (TAP) Block for Cesarean Section

NCT01015807
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
Terminated Phase 2 Interventional Results available

AZD2066 Neuropathic Pain - Mechanical Hypersensitivity

NCT00939094
Conditions
Neuropathic Pain, Mechanical Hypersensitivity
Interventions
AZD2066, Placebo
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years to 80 Years
Enrollment
87 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
38
States / cities
Tucson, Arizona • Los Angeles, California • Sacramento, California + 35 more
Conditions
Healthy, Hyperalgesia
Interventions
Placebo, Oral NGX426 (Powder in solution)
Drug
Lead sponsor
TorreyPines Therapeutics
Industry
Eligibility
21 Years to 55 Years · Male only
Enrollment
18 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008
U.S. locations
1
States / cities
San Diego, California
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
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
Completed Phase 1 Interventional Accepts healthy volunteers

Fenobam on Heat/Capsaicin Induced Hyperalgesia in Healthy Volunteers

NCT01981395
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
Completed Not applicable Interventional Results available

The Effect of Intravenous Lidocaine on Allodynia

NCT00659633
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
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
Conditions
Neuralgia, Pain, Peripheral Nervous System Diseases, Herpes Zoster
Interventions
Capsaicin Patch
Drug
Lead sponsor
NeurogesX
Industry
Eligibility
18 Years and older
Enrollment
42 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002
U.S. locations
8
States / cities
Phoenix, Arizona • Tucson, Arizona • Naples, Florida + 5 more
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers

Analgesic Efficacy of Smoked Cannabis

NCT00241579
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
Conditions
Fibromyalgia
Interventions
AXS-14 (esreboxetine)
Drug
Lead sponsor
Axsome Therapeutics, Inc.
Industry
Eligibility
18 Years and older
Enrollment
300 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
31
States / cities
Little Rock, Arkansas • Redlands, California • Sacramento, California + 26 more
Completed Not applicable Interventional Results available

Effect of Ketamine on Opioid-Induced Hyperalgesia

NCT00833755
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
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
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
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
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
Completed No phase listed Observational Accepts healthy volunteers

Neuropeptide Y (NPY) Regulation of Nociceptors

NCT00596193
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
Completed Not applicable Interventional Accepts healthy volunteers

TENS Effectiveness and Knee Osteoarthritis in Humans

NCT01354054
Conditions
Knee Osteoarthritis
Interventions
High Frequency TENS, Low frequency TENS, Placebo TENS
Procedure
Lead sponsor
University of Iowa
Other
Eligibility
30 Years to 95 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2009
U.S. locations
1
States / cities
Iowa City, Iowa
Conditions
Pain, Hyperalgesia
Interventions
Lidoderm Patch
Drug
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years and older
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2006
U.S. locations
1
States / cities
La Jolla, California
Completed Not applicable Interventional Accepts healthy volunteers Results available

Study on the Development of Opioid Induced Hyperalgesia (OIH) After Exposure to Alfentanil

NCT00991809
Conditions
Hyperalgesia
Interventions
Alfentanil, Diphenhydramine
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 55 Years · Male only
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2010
U.S. locations
1
States / cities
Baltimore, Maryland
Conditions
Insomnia, Fibromyalgia
Interventions
Cognitive Behavioral Therapy for Insomnia (CBT-I), Cognitive Behavioral Therapy for Pain (CBT-P)
Behavioral
Lead sponsor
University of Florida
Other
Eligibility
18 Years and older
Enrollment
113 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2013
U.S. locations
1
States / cities
Gainesville, Florida
Completed No phase listed Observational Accepts healthy volunteers

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

NCT00561782
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
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