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ClinicalTrials.gov public records Last synced May 22, 2026, 3:48 AM EDT

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

Showing 1–17 of 17 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Opioid Induced 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 22, 2026, 3:48 AM 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 22, 2026, 3:48 AM 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 22, 2026, 3:48 AM 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 22, 2026, 3:48 AM 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 22, 2026, 3:48 AM 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 22, 2026, 3:48 AM 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 22, 2026, 3:48 AM 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 22, 2026, 3:48 AM 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 22, 2026, 3:48 AM EDT
Terminated No phase listed Observational
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 May 22, 2026, 3:48 AM EDT
Completed Not applicable Interventional
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 May 22, 2026, 3:48 AM EDT
Completed No phase listed Observational Accepts healthy volunteers
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 May 22, 2026, 3:48 AM EDT
Not listed Phase 1 Interventional
View directory record Official record
Conditions
Opioid-induced Hyperalgesia
Interventions
dextromethorphan
Drug
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
18 Years to 55 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2002
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jan 10, 2017 · Synced May 22, 2026, 3:48 AM EDT
Terminated Phase 2 Interventional
View directory record Official record
Conditions
Chronic Pain
Interventions
Pregabalin, Placebo
Drug
Lead sponsor
Georgetown University
Other
Eligibility
21 Years to 65 Years
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2016
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Feb 8, 2017 · Synced May 22, 2026, 3:48 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Oct 5, 2017 · Synced May 22, 2026, 3:48 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available
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 May 22, 2026, 3:48 AM EDT
Withdrawn Phase 2 Interventional
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 May 22, 2026, 3:48 AM EDT