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ClinicalTrials.gov public records Last synced May 21, 2026, 7:40 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 90 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: CRPS (Complex Regional Pain Syndromes) Clear all
Active, not recruiting Not applicable Interventional
View directory record Official record
Conditions
Chronic Neuropathic Pain, Post-Stroke Pain, Trigeminal Neuralgia, Nerve Injury, Spinal Cord Injuries, Pain, Postoperative, Complex Regional Pain Syndromes, Post-herpetic Neuralgia, Nerve Root Avulsion
Interventions
High Frequency rTMS, Low Frequency rTMS
Device
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years to 80 Years
Enrollment
32 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Mar 12, 2026 · Synced May 21, 2026, 7:40 PM EDT
Not listed Not applicable Interventional
View directory record Official record
Conditions
Fibromyalgia, Complex Regional Pain Syndromes, Chronic Pain
Interventions
Low-intensity Focused Ultrasound (LIFU), Sham Low-intensity focused ultrasound (LIFU)
Device
Lead sponsor
Carilion Clinic
Other
Eligibility
18 Years to 65 Years
Enrollment
27 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
1
States / cities
Roanoke, Virginia
Source: ClinicalTrials.gov public record
Updated Oct 15, 2023 · Synced May 21, 2026, 7:40 PM EDT
Recruiting Phase 3 Interventional
View directory record Official record
Conditions
Complex Regional Pain Syndrome Type I
Interventions
Neridronate, Placebo
Drug
Lead sponsor
Ambros Therapeutics, Inc.
Industry
Eligibility
18 Years and older
Enrollment
270 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
9
States / cities
Phoenix, Arizona • Tucson, Arizona • Tustin, California + 6 more
Source: ClinicalTrials.gov public record
Updated May 19, 2026 · Synced May 21, 2026, 7:40 PM EDT
Completed Phase 2 Interventional
View directory record Official record
Conditions
Complex Regional Pain Syndrome
Interventions
Ketamine, IV NSS, Normal Saline
Drug · Other
Lead sponsor
Drexel University College of Medicine
Other
Eligibility
18 Years to 65 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2009
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jun 16, 2010 · Synced May 21, 2026, 7:40 PM EDT
Completed Phase 4 Interventional
View directory record Official record
Conditions
Postherpetic Neuralgia, Diabetic Neuropathy, Complex Regional Pain Syndrome, Carpal Tunnel Syndrome, HIV Neuropathy, Idiopathic Sensory Neuropathy, Peripheral Neuropathy
Interventions
Placebo Capsules + Placebo Patch, Placebo capsules + Lidoderm®, Gabapentin + Placebo, Gabapentin + Lidoderm®, Gabapentin 300 mg capsules 1800 mg/day + placebo patch, Gabapentin 1800 mg/day + Lidoderm patch
Drug
Lead sponsor
Endo Pharmaceuticals
Industry
Eligibility
18 Years and older
Enrollment
62 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2003
U.S. locations
7
States / cities
Birmingham, Alabama • Hueytown, Alabama • Phoenix, Arizona + 4 more
Source: ClinicalTrials.gov public record
Updated Jan 1, 2024 · Synced May 21, 2026, 7:40 PM EDT
Completed Not applicable Interventional
View directory record Official record
Conditions
Chronic Pain, Musculoskeletal Pain, Fibromyalgia, Neuropathic Pain, Complex Regional Pain Syndromes, Abdominal Pain
Interventions
Empowered Relief for Youth
Behavioral
Lead sponsor
Stanford University
Other
Eligibility
10 Years to 18 Years
Enrollment
110 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated Sep 30, 2025 · Synced May 21, 2026, 7:40 PM EDT
Completed Phase 2 Interventional
View directory record Official record
Conditions
Complex Regional Pain Syndrome (RSD)
Interventions
Lenalidomide
Drug
Lead sponsor
Celgene Corporation
Industry
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2007
U.S. locations
6
States / cities
La Jolla, California • Baltimore, Maryland • Chapel Hill, North Carolina + 3 more
Source: ClinicalTrials.gov public record
Updated Jan 2, 2008 · Synced May 21, 2026, 7:40 PM EDT
Not listed No phase listed Observational
View directory record Official record
Conditions
Complex Regional Pain Syndromes, Neuralgia, Thoracic Outlet Neurologic Syndrome
Interventions
A2M enriched plasma
Combination Product
Lead sponsor
Neurological Associates of West Los Angeles
Other
Eligibility
23 Years to 77 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2023
U.S. locations
1
States / cities
Santa Monica, California
Source: ClinicalTrials.gov public record
Updated Sep 27, 2022 · Synced May 21, 2026, 7:40 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers
View directory record Official record
Conditions
Complex Regional Pain Syndromes
Interventions
observation and measure of trajectory of recovery in CRPS
Behavioral
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
10 Years to 17 Years
Enrollment
126 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2026
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Feb 6, 2024 · Synced May 21, 2026, 7:40 PM EDT
Completed Phase 2Phase 3 Interventional
View directory record Official record
Conditions
Complex Regional Pain Syndrome, Type I
Interventions
Placebo, Neridronic acid 62.5 mg
Drug
Lead sponsor
Grünenthal GmbH
Industry
Eligibility
18 Years to 80 Years
Enrollment
459 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
49
States / cities
Foley, Alabama • Scottsdale, Arizona • Tucson, Arizona + 42 more
Source: ClinicalTrials.gov public record
Updated May 8, 2018 · Synced May 21, 2026, 7:40 PM EDT
Completed No phase listed Observational
View directory record Official record
Conditions
CRPS (Complex Regional Pain Syndromes)
Interventions
Infrared Imaging
Other
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 – 2026
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Apr 7, 2026 · Synced May 21, 2026, 7:40 PM EDT
Completed Not applicable Interventional Results available
View directory record Official record
Conditions
Complex Regional Pain Syndrome (CRPS)
Interventions
Transcranial Magnetic Stimulation
Device
Lead sponsor
Stanford University
Other
Eligibility
18 Years and older
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated May 9, 2017 · Synced May 21, 2026, 7:40 PM EDT
Completed Phase 1Phase 2 Interventional Results available
View directory record Official record
Conditions
Neuropathic Pain, Reflex Sympathetic Dystrophy, Peripheral Neuropathy, Post-herpetic Neuralgia, Spinal Cord Injury, Multiple Sclerosis
Interventions
Mild dose cannabis, Low dose cannabis, Cannabis
Drug
Lead sponsor
University of California, Davis
Other
Eligibility
18 Years to 70 Years
Enrollment
44 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2012
U.S. locations
1
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated Jan 30, 2018 · Synced May 21, 2026, 7:40 PM EDT
Completed Phase 3 Interventional Results available
View directory record Official record
Conditions
Osteoarthritis, Rheumatoid Arthritis, Chronic Low Back Pain, Chronic Regional Pain Syndrome, Chronic Soft Tissue Pain
Interventions
HZT-501, Ibuprofen
Drug
Lead sponsor
Amgen
Industry
Eligibility
40 Years to 81 Years
Enrollment
179 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2008
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Dec 16, 2024 · Synced May 21, 2026, 7:40 PM EDT
Terminated No phase listed Observational Results available
View directory record Official record
Conditions
Complex Regional Pain Syndrome
Interventions
The Nuvectra Algovita Dorsal Column Spinal Cord Stimulator, The Axium Neurostimulator System
Device
Lead sponsor
The Cleveland Clinic
Other
Eligibility
18 Years and older
Enrollment
1 participant
Timeline
2019 – 2020
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Feb 26, 2023 · Synced May 21, 2026, 7:40 PM EDT
Active, not recruiting Early Phase 1 Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Ehlers-Danlos Syndrome (EDS), Complex Regional Pain Syndrome (CRPS), Amplified Musculoskeletal Pain Syndrome (AMPS), Low Back Pain, Fibromyalgia, Chronic Widespread Pain
Interventions
Two-point discrimination training, One-point discrimination training
Behavioral
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
10 Years to 17 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2027
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Jan 5, 2025 · Synced May 21, 2026, 7:40 PM EDT
Terminated Phase 2 Interventional Results available
View directory record Official record
Conditions
Complex Regional Pain Syndrome, Type I
Interventions
lenalidomide, Placebo
Drug
Lead sponsor
Celgene Corporation
Industry
Eligibility
18 Years and older
Enrollment
184 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2008
U.S. locations
27
States / cities
Peoria, Arizona • La Jolla, California • Loma Linda, California + 23 more
Source: ClinicalTrials.gov public record
Updated Aug 27, 2013 · Synced May 21, 2026, 7:40 PM EDT
Completed No phase listed Observational Results available
View directory record Official record
Conditions
Anxiety Disorders, Complex Regional Pain Syndrome Type II, Depressive Disorders, Post-Traumatic Stress Disorder, Substance Abuse
Interventions
Regional Anesthesia, Standard Pain Management Protocol
Procedure
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
Not listed
Enrollment
386 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2014
U.S. locations
3
States / cities
Bethesda, Maryland • Philadelphia, Pennsylvania • Fort Sam Houston, Texas
Source: ClinicalTrials.gov public record
Updated May 14, 2017 · Synced May 21, 2026, 7:40 PM EDT
Completed Not applicable Interventional Results available
View directory record Official record
Conditions
Complex Regional Pain Syndromes, Back Pain
Interventions
Experimental: Virtual Reality Guided Imagery, Active Comparator: Audio Only Guided Imagery
Device · Other
Lead sponsor
University of Southern California
Other
Eligibility
18 Years and older
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Aug 20, 2024 · Synced May 21, 2026, 7:40 PM EDT
Completed Phase 3 Interventional
View directory record Official record
Conditions
Pain
Interventions
OraVescent Fentanyl
Drug
Lead sponsor
Cephalon
Industry
Eligibility
18 Years to 80 Years
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2007
U.S. locations
21
States / cities
Hot Springs, Arkansas • Los Gatos, California • Oxnard, California + 16 more
Source: ClinicalTrials.gov public record
Updated May 8, 2014 · Synced May 21, 2026, 7:40 PM EDT
Completed No phase listed Observational
View directory record Official record
Conditions
Chronic Pain Syndrome, Fibromyalgia, Chronic Headache Disorder, Functional Abdominal Pain Syndrome, Complex Regional Pain Syndromes
Interventions
Not listed
Lead sponsor
Boston Children's Hospital
Other
Eligibility
10 Years to 17 Years
Enrollment
43 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
1
States / cities
Waltham, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jun 25, 2024 · Synced May 21, 2026, 7:40 PM EDT
Recruiting No phase listed Observational
View directory record Official record
Conditions
Complex Regional Pain Syndromes
Interventions
Forward Looking InfraRed Camera
Other
Lead sponsor
Hospital for Special Surgery, New York
Other
Eligibility
18 Years to 85 Years
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Nov 25, 2025 · Synced May 21, 2026, 7:40 PM EDT
Completed Not applicable Interventional
View directory record Official record
Conditions
Pain
Interventions
Lumbar sympathetic block with Botulinum Toxin type A
Procedure
Lead sponsor
Stanford University
Other
Eligibility
21 Years to 80 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2007
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Jan 18, 2011 · Synced May 21, 2026, 7:40 PM EDT
Completed Phase 3 Interventional Results available
View directory record Official record
Conditions
Complex Regional Pain Syndrome
Interventions
Nitrous Oxide, Oxygen
Drug
Lead sponsor
The Cleveland Clinic
Other
Eligibility
18 Years to 65 Years
Enrollment
44 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Feb 8, 2024 · Synced May 21, 2026, 7:40 PM EDT