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ClinicalTrials.gov public records Last synced May 22, 2026, 12:21 AM EDT

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

Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Reflex Sympathetic Dystrophy Clear all
Completed No phase listed Observational
View directory record Official record
Conditions
Fatigue
Interventions
Not listed
Lead sponsor
National Institute of Nursing Research (NINR)
NIH
Eligibility
18 Years and older
Enrollment
367 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2020
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 21, 2020 · Synced May 22, 2026, 12:21 AM EDT
Not yet recruiting Phase 2 Interventional
View directory record Official record
Conditions
Complex Regional Pain Syndromes
Interventions
80mg/day Ketamine HCl Prolonged Release, 160mg/day Ketamine HCl Prolonged Release
Drug
Lead sponsor
University of Southern California
Other
Eligibility
18 Years to 64 Years
Enrollment
65 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jan 25, 2026 · Synced May 22, 2026, 12:21 AM EDT
Completed No phase listed Observational
View directory record Official record
Conditions
Complex Regional Pain Syndromes
Interventions
Forward Looking Infrared Radar (FLIR) thermal imaging
Device
Lead sponsor
Hospital for Special Surgery, New York
Other
Eligibility
18 Years to 85 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Dec 26, 2024 · Synced May 22, 2026, 12:21 AM EDT
Completed Not applicable Interventional
View directory record Official record
Conditions
Chronic Pain, Complex Regional Pain Syndrome, Failed Back Surgery Syndrome
Interventions
Spinal cord stimulator, Implantation of a spinal cord stimulator
Device · Procedure
Lead sponsor
CHU de Quebec-Universite Laval
Other
Eligibility
18 Years and older
Enrollment
38 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2018
U.S. locations
1
States / cities
Toledo, Ohio
Source: ClinicalTrials.gov public record
Updated Jul 16, 2018 · Synced May 22, 2026, 12:21 AM EDT
Completed No phase listed Observational
View directory record Official record
Conditions
Chronic Pain
Interventions
Not listed
Lead sponsor
Corewell Health East
Other
Eligibility
18 Years to 80 Years
Enrollment
250 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2012
U.S. locations
2
States / cities
Royal Oak, Michigan • Troy, Michigan
Source: ClinicalTrials.gov public record
Updated Sep 3, 2020 · Synced May 22, 2026, 12:21 AM EDT
Terminated Phase 3 Interventional Results available
View directory record Official record
Conditions
Complex Regional Pain Syndrome (CRPS)
Interventions
Neridronic acid 100 mg, Placebo
Drug
Lead sponsor
Grünenthal GmbH
Industry
Eligibility
18 Years and older
Enrollment
182 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
39
States / cities
Huntsville, Alabama • Mobile, Alabama • Peoria, Arizona + 35 more
Source: ClinicalTrials.gov public record
Updated Aug 5, 2020 · Synced May 22, 2026, 12:21 AM EDT
Enrolling by invitation Phase 4 Interventional
View directory record Official record
Conditions
Complex Regional Pain Syndrome, Chronic Pain, Causalgia, Complex Regional Pain Syndrome Type I, Complex Regional Pain Syndrome Type II
Interventions
Low dose naltrexone, Placebo sugar capsules
Drug
Lead sponsor
Hospital for Special Surgery, New York
Other
Eligibility
18 Years to 65 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Nov 25, 2025 · Synced May 22, 2026, 12:21 AM EDT
Enrolling by invitation No phase listed Observational
View directory record Official record
Conditions
Chronic Pain
Interventions
Ketamine
Drug
Lead sponsor
Theresa Lii
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Dec 18, 2025 · Synced May 22, 2026, 12:21 AM EDT
Not listed Not applicable Interventional
View directory record Official record
Conditions
Complex Regional Pain Syndrome Type I
Interventions
Repeated Transcranial Magnetic Stimulation, Sham Repeated Transcranial Magnetic Stimulation, Rehabilitation
Device · Other
Lead sponsor
State University of New York - Upstate Medical University
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
1
States / cities
Syracuse, New York
Source: ClinicalTrials.gov public record
Updated Aug 29, 2023 · Synced May 22, 2026, 12:21 AM EDT
Terminated Phase 2 Interventional Accepts healthy volunteers Results available
View directory record Official record
Conditions
Complex Regional Pain Syndrome
Interventions
Ketamine Infusion + Epidural Infusion, Control Group + Epidural infusion, Ketamine Booster Infusion, Control Group Booster Infusion
Drug
Lead sponsor
Hospital for Special Surgery, New York
Other
Eligibility
18 Years to 65 Years
Enrollment
3 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2015
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jan 30, 2018 · Synced May 22, 2026, 12:21 AM EDT
Not listed Early Phase 1 Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Complex Regional Pain Syndrome
Interventions
Botox + Lidocaine, Lidocaine alone
Drug
Lead sponsor
VA Connecticut Healthcare System
Federal
Eligibility
18 Years to 80 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2019
U.S. locations
1
States / cities
West Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Aug 5, 2018 · Synced May 22, 2026, 12:21 AM EDT
Withdrawn No phase listed Observational Accepts healthy volunteers
View directory record Official record
Conditions
Neuropathic Pain, Complex Regional Pain Syndrome, Chronic Pain
Interventions
Not listed
Lead sponsor
Henry Ford Health System
Other
Eligibility
18 Years and older
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2023
U.S. locations
1
States / cities
Detroit, Michigan
Source: ClinicalTrials.gov public record
Updated Feb 15, 2023 · Synced May 22, 2026, 12:21 AM EDT
Withdrawn No phase listed Observational
View directory record Official record
Conditions
Complex Regional Pain Syndromes
Interventions
Apple Watch v8
Device
Lead sponsor
Stanford University
Other
Eligibility
8 Years to 17 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated May 7, 2026 · Synced May 22, 2026, 12:21 AM EDT
Terminated Not applicable Interventional
View directory record Official record
Conditions
Complex Regional Pain Syndrome
Interventions
Autonomic Function Assessment
Other
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
18 Years to 65 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2010
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Feb 27, 2018 · Synced May 22, 2026, 12:21 AM EDT
Completed Phase 4 Interventional
View directory record Official record
Conditions
Chronic Refractory Pain Associated With Failed Back Surgery Syndrome, Epidural Fibrosis, Peripheral Causalgia, Complex Regional Pain Syndrome
Interventions
Spinal Cord Stimulation
Device
Lead sponsor
MedtronicNeuro
Industry
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2007
U.S. locations
8
States / cities
Chicago, Illinois • Indianapolis, Indiana • Kansas City, Missouri + 5 more
Source: ClinicalTrials.gov public record
Updated Jan 20, 2009 · Synced May 22, 2026, 12:21 AM EDT
Terminated Not applicable Interventional Results available
View directory record Official record
Conditions
Complex Regional Pain Syndrome I (CRPS I)
Interventions
Gabapentin
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 80 Years
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 22, 2020 · Synced May 22, 2026, 12:21 AM EDT
Completed No phase listed Observational Accepts healthy volunteers
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 May 22, 2026, 12:21 AM EDT
Withdrawn Phase 2 Interventional
View directory record Official record
Conditions
Complex Regional Pain Syndromes
Interventions
Ketamine, Midazolam, Normal Saline
Drug
Lead sponsor
Stanford University
Other
Eligibility
18 Years to 65 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2099
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Nov 21, 2024 · Synced May 22, 2026, 12:21 AM EDT
Recruiting Not applicable Interventional
View directory record Official record
Conditions
Complex Regional Pain Syndromes
Interventions
Spinal Cord Stimulation Device
Device
Lead sponsor
Scripps Health
Other
Eligibility
18 Years and older
Enrollment
32 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
La Jolla, California
Source: ClinicalTrials.gov public record
Updated Nov 2, 2025 · Synced May 22, 2026, 12:21 AM EDT
Withdrawn Phase 2Phase 3 Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Pain, Trigeminal Neuralgia, Neuropathic Pain
Interventions
laboratory pain assessment, transcranial magnetic stimulation
Device · Procedure
Lead sponsor
Medical University of South Carolina
Other
Eligibility
21 Years to 60 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2010
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Apr 29, 2012 · Synced May 22, 2026, 12:21 AM EDT
Terminated Phase 1 Interventional
View directory record Official record
Conditions
Trigeminal Neuralgia (Burchiel Type I), Trigeminal Neuralgia (Burchiel Type II), Trigeminal Neuropathic Pain, Trigeminal Deafferentation Pain, Complex Regional Pain Syndrome (Types I and II, Involving the Upper Extremity), Glossopharyngeal Neuralgia, Upper Extremity Pain Due to Deafferentation of the Cervical Spine, Central Pain Syndromes
Interventions
Epidural Motor Cortex Stimulation
Device
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years and older
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Feb 17, 2019 · Synced May 22, 2026, 12:21 AM EDT
Terminated Not applicable Interventional Results available
View directory record Official record
Conditions
Complex Regional Pain Syndrome (CRPS)
Interventions
phenylephrine and clonidine, punch biopsy
Drug · Other
Lead sponsor
The Cleveland Clinic
Other
Eligibility
18 Years to 80 Years
Enrollment
128 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2016
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Jan 12, 2021 · Synced May 22, 2026, 12:21 AM EDT
Terminated Phase 3 Interventional Results available
View directory record Official record
Conditions
Complex Regional Pain Syndrome (CRPS)
Interventions
Neridronic acid 100 mg, Placebo
Drug
Lead sponsor
Grünenthal GmbH
Industry
Eligibility
18 Years and older
Enrollment
267 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
41
States / cities
Cottonwood, Arizona • Tempe, Arizona • Tucson, Arizona + 34 more
Source: ClinicalTrials.gov public record
Updated Aug 4, 2020 · Synced May 22, 2026, 12:21 AM EDT
Completed Not applicable Interventional Results available
View directory record Official record
Conditions
Irritable Bowel Syndrome (IBS), Functional Abdominal Pain, Fibromyalgia, Complex Regional Pain Syndrome (CRPS), Myofacial Pain, Chronic Daily Headaches, Migraine Headaches, Chronic Pain
Interventions
Mentorship
Behavioral
Lead sponsor
University of California, Los Angeles
Other
Eligibility
12 Years to 18 Years
Enrollment
27 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Sep 29, 2016 · Synced May 22, 2026, 12:21 AM EDT