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Showing 1–24 of 130 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Post-Operative Pain, Chronic Clear all
Active, not recruiting Phase 3 Interventional

Optimizing the Use of Ketamine to Reduce Chronic Postsurgical Pain

NCT05037123
View directory record Official record
Conditions
Chronic Postsurgical Pain
Interventions
Continuous ketamine infusion, Ketamine + Saline, Placebo
Drug · Other
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years and older · Female only
Enrollment
765 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
14
States / cities
Birmingham, Alabama • Little Rock, Arkansas • Chicago, Illinois + 9 more
Source: ClinicalTrials.gov public record
Updated Jun 7, 2026 · Synced Sep 4, 2026, 1:48 PM EDT
Completed Phase 4 Interventional Results available

The Effect of Choice of Intraoperative Opioid on Postoperative Pain

NCT01542645
View directory record Official record
Conditions
Pain, Postoperative, Chronic Pain
Interventions
Methadone, Fentanyl
Drug
Lead sponsor
Endeavor Health
Other
Eligibility
18 Years to 90 Years
Enrollment
164 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2014
U.S. locations
1
States / cities
Evanston, Illinois
Source: ClinicalTrials.gov public record
Updated Sep 29, 2019 · Synced Sep 4, 2026, 1:48 PM EDT
Completed Not applicable Interventional Results available

Postoperative Peripheral Nerve Stimulation for Management of Post-amputation Pain

NCT03484429
View directory record Official record
Conditions
Phantom Limb Pain, Postoperative Pain, Neuroma, Acute Pain, Chronic Pain, Residual Limbs, Amputation
Interventions
Peripheral nerve stimulation, Standard Medical Therapy
Device · Other
Lead sponsor
Hunter Holmes Mcguire Veteran Affairs Medical Center
Federal
Eligibility
18 Years and older
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2021
U.S. locations
1
States / cities
Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated Jul 20, 2021 · Synced Sep 4, 2026, 1:48 PM EDT
Withdrawn Phase 4 Interventional

Suboxone User Perioperative Early Referral and Enhanced Recovery After Surgery- Orthopaedic Trauma Surgery Population

NCT04464512
View directory record Official record
Conditions
Addiction Opiate, Chronic Pain, Fractures, Bone, Buprenorphine Dependence
Interventions
Sufentanil
Drug
Lead sponsor
West Virginia University
Other
Eligibility
18 Years to 65 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Morgantown, West Virginia
Source: ClinicalTrials.gov public record
Updated Dec 11, 2022 · Synced Sep 4, 2026, 1:48 PM EDT
Not yet recruiting Not applicable Interventional

FROST-STERN Trial: A Trial of Intraoperative Cryoablation for Post Operative Pain Management After Full Sternotomy

NCT07637370
View directory record Official record
Conditions
Pulmonary Dysfunction, Median Sternotomy Recovery, Postoperative Pain
Interventions
Intercostal Nerve Cryoablation
Device
Lead sponsor
Rutgers, The State University of New Jersey
Other
Eligibility
40 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
New Brunswick, New Jersey
Source: ClinicalTrials.gov public record
Updated Jun 8, 2026 · Synced Sep 4, 2026, 1:48 PM EDT
Completed Not applicable Interventional

Effects of Spinal Cord Stimulation on Sensory Perceptions of Chronic Pain Patients

NCT02837822
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 Sep 4, 2026, 1:48 PM EDT
Completed Not applicable Interventional Results available

High Pain Intervention in Cesarean Sections

NCT01298778
View directory record Official record
Conditions
Other Chronic Postoperative Pain
Interventions
Duramorph 150, Acetaminophen, Duramorph 300
Drug
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
69 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Sep 9, 2018 · Synced Sep 4, 2026, 1:48 PM EDT
Recruiting Not applicable Interventional

Closed-Loop Deep Brain Stimulation for Refractory Chronic Pain

NCT04144972
View directory record Official record
Conditions
Spinal Cord Injuries, Nerve Injury, Pain, Postoperative, Post Herpetic Neuralgia, Complex Regional Pain Syndromes, Post-Stroke Pain, Post Radiation Brain Injury, Post Radiation Plexopathy, Nerve Root Avulsion
Interventions
Medtronic Summit RC+S or Percept RC
Device
Lead sponsor
University of California, San Francisco
Other
Eligibility
22 Years to 80 Years
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2030
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Jul 30, 2026 · Synced Sep 4, 2026, 1:48 PM EDT
Recruiting No phase listed Observational

Identifying Biomarkers Related to Opioid Use and Pain Response Following Traumatic Injury and Surgery

NCT07693270
View directory record Official record
Conditions
Opioid Use Disorder, Opioid Consumption, Persistent Opioid Use, Persistent Postsurgical Pain
Interventions
Not listed
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
La Jolla, California
Source: ClinicalTrials.gov public record
Updated Jul 16, 2026 · Synced Sep 4, 2026, 1:48 PM EDT
Terminated No phase listed Observational

Algovita Post-Market Clinical Study: Spinal Cord Stimulation to Treat Chronic Pain

NCT02373540
View directory record Official record
Conditions
Chronic Pain
Interventions
Algovita Spinal Cord Stimulation system
Device
Lead sponsor
Nuvectra
Industry
Eligibility
18 Years and older
Enrollment
91 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2019
U.S. locations
16
States / cities
Show Low, Arizona • Carlsbad, California • Los Gatos, California + 13 more
Source: ClinicalTrials.gov public record
Updated Aug 20, 2020 · Synced Sep 4, 2026, 1:48 PM EDT
Recruiting No phase listed Observational

Understanding the Acute Pain Phenotype in Patients Undergoing Surgery

NCT06466941
View directory record Official record
Conditions
Acute Pain, Chronic Post Operative Pain, Opioid Use
Interventions
regional anesthesia, no regional anesthesia, acute pain consultation, no acute pain consultation
Procedure · Other
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years and older
Enrollment
1,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2028
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 21, 2026 · Synced Sep 4, 2026, 1:48 PM EDT
Not listed Not applicable Interventional

SynerFuse Spinal Fusion and Neuromodulation Proof of Concept Study

NCT04054401
View directory record Official record
Conditions
Spinal Fusion, Radiculopathy Lumbar, Chronic Pain
Interventions
DRG Neurostimulation with Spinal Fusion
Device
Lead sponsor
SynerFuse, Inc
Other
Eligibility
21 Years to 80 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
2
States / cities
Mishawaka, Indiana • Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Nov 23, 2023 · Synced Sep 4, 2026, 1:48 PM EDT
Completed Not applicable Interventional Results available

OPTIONS Spinal Cord Stimulation Programming Parameters

NCT02503787
View directory record Official record
Conditions
Pain, Intractable
Interventions
Spinal Cord Stimulation (SCS)
Device
Lead sponsor
MedtronicNeuro
Industry
Eligibility
18 Years and older
Enrollment
64 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
11
States / cities
Scottsdale, Arizona • Chula Vista, California • Wilmington, Delaware + 8 more
Source: ClinicalTrials.gov public record
Updated Sep 18, 2017 · Synced Sep 4, 2026, 1:48 PM EDT
Completed Phase 4 Interventional Results available

Peri-operative Use of a Pain Injection in Pediatric Patients With Cerebral Palsy

NCT04074265
View directory record Official record
Conditions
Cerebral Palsy, Hip Dysplasia, Pain, Postoperative
Interventions
Ropivacaine injection, normal saline
Drug
Lead sponsor
University of California, Los Angeles
Other
Eligibility
Up to 18 Years
Enrollment
34 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2023
U.S. locations
4
States / cities
Los Angeles, California • Santa Monica, California • Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jun 9, 2024 · Synced Sep 4, 2026, 1:48 PM EDT
Recruiting Not applicable Interventional

Psychophysical and Neural Mechanisms Contributing to Chronic Post-Surgical Pain in Adolescents and Adults

NCT05304286
View directory record Official record
Conditions
Chronic Post-surgical Pain
Interventions
Acceptance and Commitment Therapy
Behavioral
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
12 Years and older
Enrollment
110 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Nov 2, 2025 · Synced Sep 4, 2026, 1:48 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Electrical Stimulus Therapy for Chronic Phantom Limb Pain

NCT03030079
View directory record Official record
Conditions
Phantom Limb Pain
Interventions
Experimental Electrical Stimulation Regimen
Device
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years to 85 Years
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2023
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Dec 10, 2023 · Synced Sep 4, 2026, 1:48 PM EDT
Terminated Phase 4 Interventional

Comparison of Intraspinal Nerve Root Stimulation With Dorsal Column Stimulation

NCT00370773
View directory record Official record
Conditions
Back Pain
Interventions
Precision Spinal Cord Stimulation System
Device
Lead sponsor
Boston Scientific Corporation
Industry
Eligibility
18 Years and older
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2007
U.S. locations
1
States / cities
Daphne, Alabama
Source: ClinicalTrials.gov public record
Updated Sep 4, 2008 · Synced Sep 4, 2026, 1:48 PM EDT
Withdrawn Not applicable Interventional

Using Peripheral Nerve Stimulation (PNS) to Treat Chronic Post-surgical Pain (CPSP) After Knee Surgery

NCT04670042
View directory record Official record
Conditions
Injury; Nerve, Peripheral, Multiple, Chronic Post-Procedural Pain, Total Knee Arthroplasty, Surgery, Knee Injuries, Knee Pain Chronic, Postoperative Pain, Chronic Postoperative Pain
Interventions
SPRINT® Peripheral Nerve Stimulation (PNS) System (510k Cleared)
Device
Lead sponsor
Stanford University
Other
Eligibility
21 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
1
States / cities
Redwood City, California
Source: ClinicalTrials.gov public record
Updated Oct 19, 2022 · Synced Sep 4, 2026, 1:48 PM EDT
Completed No phase listed Observational

Personalized Prediction of Persistent Postsurgical Pain

NCT04864275
View directory record Official record
Conditions
Pain, Postoperative
Interventions
Not listed
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years to 75 Years
Enrollment
2,500 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2025
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Dec 16, 2025 · Synced Sep 4, 2026, 1:48 PM EDT
Completed Not applicable Interventional

Operant Conditioning of Sensory Brain Responses to Reduce Phantom Limb Pain in People With Limb Amputation

NCT05880251
View directory record Official record
Conditions
Phantom Limb Pain After Amputation, Lower Limb Amputation, Upper Limb Amputation, Phantom Pain, Chronic Pain
Interventions
Operant Conditioning with Peripheral Stimulation, Control Group with Peripheral Stimulation Only
Behavioral
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
1
States / cities
Albany, New York
Source: ClinicalTrials.gov public record
Updated Jan 15, 2026 · Synced Sep 4, 2026, 1:48 PM EDT
Not listed No phase listed Observational

Predicting Chronic Opioid Use Following Lower Extremity Joint Arthroplasty

NCT04974463
View directory record Official record
Conditions
Joint Pain, Chronic Pain, Opioid Use
Interventions
Not listed
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years and older
Enrollment
1,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
La Jolla, California
Source: ClinicalTrials.gov public record
Updated Jul 26, 2023 · Synced Sep 4, 2026, 1:48 PM EDT
Completed Phase 4 Interventional Results available

Efficacy Study of Ketamine for Postoperative Pain in Opioid Dependent Patients

NCT01591382
View directory record Official record
Conditions
Postoperative Pain
Interventions
Ketamine, Placebo, Hydromorphone PCA
Drug
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years and older
Enrollment
64 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2012
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 21, 2017 · Synced Sep 4, 2026, 1:48 PM EDT
Completed Phase 1 Interventional

Psilocybin-assisted Therapy for Phantom Limb Pain

NCT05224336
View directory record Official record
Conditions
Phantom Limb Pain
Interventions
Psilocybin, Placebo Niacin
Drug
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years to 75 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Jan 8, 2026 · Synced Sep 4, 2026, 1:48 PM EDT
Terminated Phase 1 Interventional

Ketamine and Magnesium in Post-operative Pain Control in Patients Treated With Opioids

NCT02940509
View directory record Official record
Conditions
Chronic Pain
Interventions
Ketamine plus Magnesium sulfate, Placebo
Drug
Lead sponsor
Milton S. Hershey Medical Center
Other
Eligibility
18 Years to 80 Years · Female only
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
1
States / cities
Hershey, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 26, 2022 · Synced Sep 4, 2026, 1:48 PM EDT