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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: CRPS Clear all
Completed Not applicable Interventional

Trialing of ISS in Patients With CRPS

NCT03954080
View directory record Official record
Conditions
CRPS I, Causalgia
Interventions
Intraspinal-optimal stim therapy
Device
Lead sponsor
Millennium Pain Center
Other
Eligibility
18 Years and older
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
1
States / cities
Bloomington, Illinois
Source: ClinicalTrials.gov public record
Updated Apr 4, 2022 · Synced Sep 15, 2026, 5:07 PM EDT
Completed Not applicable Interventional Results available

Sensory Testing of Multiple Forms of Spinal Cord Stimulation for Pain

NCT04732325
View directory record Official record
Conditions
Chronic Pain, Failed Back Surgery Syndrome, Complex Regional Pain Syndromes, Neuropathic Pain
Interventions
Spinal cord stimulation
Device
Lead sponsor
University of Michigan
Other
Eligibility
18 Years and older
Enrollment
34 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Mar 26, 2026 · Synced Sep 15, 2026, 5:07 PM EDT
Terminated Not applicable Interventional Results available

Mechanism and Treatment of Sympathetically Maintained Pain

NCT01813149
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 Sep 15, 2026, 5:07 PM EDT
Completed Phase 3 Interventional Results available

Safety Study of HZT-501 in Patients Who Require Long-Term Daily Non-steroidal Anti-inflammatory Drug Treatment

NCT00984815
View directory record Official record
Conditions
Osteoarthritis, Rheumatoid Arthritis, Chronic Low Back Pain, Chronic Regional Pain Syndrome, Chronic Soft Tissue Pain
Interventions
HZT-501
Drug
Lead sponsor
Amgen
Industry
Eligibility
40 Years to 80 Years
Enrollment
86 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
4
States / cities
Chicago, Illinois • Morton Grove, Illinois • Duncansville, Pennsylvania + 1 more
Source: ClinicalTrials.gov public record
Updated Dec 17, 2024 · Synced Sep 15, 2026, 5:07 PM EDT
Not listed Phase 3 Interventional

CREATE-1: A Study to Assess the Efficacy and Safety of AXS-02 in Patients With CRPS-1

NCT02504008
View directory record Official record
Conditions
Complex Regional Pain Syndrome, Reflex Sympathetic Dystrophy
Interventions
AXS-02 (oral zoledronate), Placebo
Drug
Lead sponsor
Axsome Therapeutics, Inc.
Industry
Eligibility
18 Years and older
Enrollment
190 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2019
U.S. locations
29
States / cities
Tucson, Arizona • Hot Springs, Arkansas • Encinitas, California + 26 more
Source: ClinicalTrials.gov public record
Updated Mar 22, 2018 · Synced Sep 15, 2026, 5:07 PM EDT
Completed Phase 3 Interventional Results available

Double-Blind Follow-on Safety Study of HZT-501 (Ibuprofen 800 mg/Famotidine 26.6 mg) in Subjects Who Have Completed Participation in HZ-CA-301 (NCT00450658) or HZ-CA-303 (NCT00450216)

NCT00613106
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 Sep 15, 2026, 5:07 PM EDT
Completed No phase listed Observational

Susceptibility to Chronic Post-Traumatic Extremity Pain

NCT00672711
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 Sep 15, 2026, 5:07 PM EDT
Recruiting No phase listed Observational

Prospective Case Series Evaluating 6-Month and 12-Month Outcomes After Cryoneurolysis for Chronic Pain

NCT07639060
View directory record Official record
Conditions
Chronic Pain, PERIPHERAL NEUROPATHY, Occipital Neuralgia, Chronic Hip Pain, Hip Osteoarthritis, Knee Osteoarthritis, Spasticity, Chronic Low Back Pain, Lumbar Spondylosis, Cervical Spondylosis, Shoulder Arthritis, Causalgia, Chronic Pain Syndrome, Chronic Neck Pain
Interventions
Not listed
Lead sponsor
Yale University
Other
Eligibility
18 Years and older
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Old Saybrook, Connecticut
Source: ClinicalTrials.gov public record
Updated Aug 20, 2026 · Synced Sep 15, 2026, 5:07 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Role of the Gut Microbiome in Complex Regional Pain Syndrome

NCT03612193
View directory record Official record
Conditions
Complex Regional Pain Syndromes
Interventions
Not listed
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years and older
Enrollment
140 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2027
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Nov 4, 2025 · Synced Sep 15, 2026, 5:07 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Positron Emission Tomography to Measure Pain and Pain Control

NCT00001307
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 Sep 15, 2026, 5:07 PM EDT
Completed Phase 3 Interventional Results available

Nitrous Oxide for the Treatment of Complex Regional Pain Syndrome

NCT03879538
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 Sep 15, 2026, 5:07 PM EDT
Completed Phase 2 Interventional Results available

Clonidine Versus Adenosine to Treat Neuropathic Pain

NCT00349921
View directory record Official record
Conditions
Pain
Interventions
clonidine, adenosine, placebo
Drug
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
Not listed
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2008
U.S. locations
2
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Sep 9, 2018 · Synced Sep 15, 2026, 5:07 PM EDT
Completed Phase 3 Interventional

Study to Evaluate the Efficacy and Safety of OraVescent Fentanyl Citrate Treatment for the Management of Breakthrough Pain in Opioid-Tolerant Patients With Noncancer-Related Chronic Pain

NCT00343733
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 Sep 15, 2026, 5:07 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Supraspinal Processing of Sensory Aspects of Pain

NCT05814497
View directory record Official record
Conditions
Migraine in Children, Complex Regional Pain Syndromes, Musculoskeletal Pain, Functional Abdominal Pain Syndrome, Fibromyalgia
Interventions
Multisensory Task, Graphesthesia, Divided attention
Other
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
10 Years to 17 Years
Enrollment
255 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2027
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Jun 4, 2026 · Synced Sep 15, 2026, 5:07 PM EDT
Completed Phase 3 Interventional Results available

Study to Evaluate the Long-Term Safety of Hydrocodone Bitartrate Extended-Release Tablets (CEP-33237) in Patients Who Require Opioid Treatment for an Extended Period of Time

NCT01223365
View directory record Official record
Conditions
Chronic Pain
Interventions
Hydrocodone ER
Drug
Lead sponsor
Teva Branded Pharmaceutical Products R&D, Inc.
Industry
Eligibility
18 Years to 80 Years
Enrollment
330 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
54
States / cities
Mobile, Alabama • Anaheim, California • Beverly Hills, California + 46 more
Source: ClinicalTrials.gov public record
Updated Jun 4, 2017 · Synced Sep 15, 2026, 5:07 PM EDT
Completed Not applicable Interventional

Using Immersive Virtual Reality to Treat Complex Regional Pain Syndrome in Adults

NCT05888142
View directory record Official record
Conditions
Pain, Chronic
Interventions
in clinic pain VR reduction exercises, In clinic VRpain reduction exercises + VR homeworks
Behavioral
Lead sponsor
University of Washington
Other
Eligibility
18 Years to 85 Years
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Dec 5, 2024 · Synced Sep 15, 2026, 5:07 PM EDT
Not listed Not applicable Interventional

rTMS and Rehabilitation for Individuals With CRPS Type 1

NCT05745025
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 Sep 15, 2026, 5:07 PM EDT
Completed Phase 3 Interventional Results available

Safety of Intravenous Neridronic Acid in CRPS

NCT02972359
View directory record Official record
Conditions
Complex Regional Pain Syndrome
Interventions
Neridronic acid
Drug
Lead sponsor
Grünenthal GmbH
Industry
Eligibility
18 Years and older
Enrollment
580 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
42
States / cities
Phoenix, Arizona • Tucson, Arizona • Little Rock, Arkansas + 35 more
Source: ClinicalTrials.gov public record
Updated Nov 20, 2019 · Synced Sep 15, 2026, 5:07 PM EDT
Completed No phase listed Observational

Association Between Focal Dystonia and Complex Regional Pain Syndrome

NCT00595439
View directory record Official record
Conditions
Focal Dystonia, Peripheral Nervous System Disease
Interventions
Not listed
Lead sponsor
National Institute of Neurological Disorders and Stroke (NINDS)
NIH
Eligibility
18 Years to 80 Years
Enrollment
90 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2007
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 1, 2017 · Synced Sep 15, 2026, 5:07 PM EDT
Completed Not applicable Interventional

Immersive Virtual Reality for Neuropathic Pain

NCT03203772
View directory record Official record
Conditions
Neuropathy, Phantom Limb Pain, Complex Regional Pain Syndromes, Neuropathic Pain
Interventions
Immersive Virtual Reality
Other
Lead sponsor
Loma Linda University
Other
Eligibility
12 Years and older
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
1
States / cities
Loma Linda, California
Source: ClinicalTrials.gov public record
Updated May 13, 2021 · Synced Sep 15, 2026, 5:07 PM EDT
Terminated Phase 2 Interventional Results available

Study to Evaluate the Efficacy and Safety of Lenalidomide in the Treatment of Complex Regional Pain Syndrome Type 1

NCT00109772
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 Sep 15, 2026, 5:07 PM EDT
Completed Not applicable Interventional Results available

Virtual Reality Guided Imagery for Chronic Pain

NCT04849897
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 Sep 15, 2026, 5:07 PM EDT
Withdrawn Phase 1Phase 2 Interventional

Adipose Stem/Stromal Cells in RSD, CRPS, Fibromyalgia

NCT02987855
View directory record Official record
Conditions
RSD (Reflex Sympathetic Dystrophy), CRPS - Complex Regional Pain Syndrome Type I, Fibromyalgia
Interventions
Lipoaspiration, ADcSVF isolation, Normal Saline IV
Procedure
Lead sponsor
Healeon Medical Inc
Industry
Eligibility
16 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2024
U.S. locations
1
States / cities
Stevensville, Montana
Source: ClinicalTrials.gov public record
Updated Feb 15, 2021 · Synced Sep 15, 2026, 5:07 PM EDT
Terminated Not applicable Interventional

Modulating Neuropathic Pain With Transcranial Direct Current Stimulation

NCT04581525
View directory record Official record
Conditions
Pain, Neuropathic, Complex Regional Pain Syndromes, Phantom Limb Pain, Spinal Cord Injuries
Interventions
transcranial direct current stimulation
Device
Lead sponsor
Susan McDowell
Other
Eligibility
18 Years and older
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2020
U.S. locations
1
States / cities
Lexington, Kentucky
Source: ClinicalTrials.gov public record
Updated Jun 13, 2021 · Synced Sep 15, 2026, 5:07 PM EDT