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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Post-Operative Pain, Chronic Clear all
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 21, 2026, 2:22 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

fMRI and IVCM Cornea Microscopy of CXL in Keratoconus

NCT04439552
View directory record Official record
Conditions
Pain, Postoperative, Pain, Chronic, Pain, Acute, Surgical Injury, Surgical Wound, Cornea Injury, Cornea, Keratoconus
Interventions
Not listed
Lead sponsor
Boston Children's Hospital
Other
Eligibility
8 Years to 35 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2027
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 18, 2025 · Synced Sep 21, 2026, 2:22 PM EDT
Completed Early Phase 1 Interventional

Prevention of Post Mastectomy With Intraoperative Ketamine

NCT03090776
View directory record Official record
Conditions
Pain, Postoperative, Post-Mastectomy Chronic Pain Syndrome
Interventions
Ketamine, Placebo saline
Drug · Other
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years to 85 Years · Female only
Enrollment
264 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2025
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 19, 2026 · Synced Sep 21, 2026, 2:22 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Methadone and Hydromorphone For Spinal Surgery

NCT02107339
View directory record Official record
Conditions
Hydromorphone Use, Acute Postoperative Pain, Patient Satisfaction, Chronic Persistent Surgical Pain
Interventions
Methadone, Hydromorphone
Drug
Lead sponsor
Endeavor Health
Other
Eligibility
18 Years to 80 Years
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2017
U.S. locations
1
States / cities
Evanston, Illinois
Source: ClinicalTrials.gov public record
Updated Sep 29, 2019 · Synced Sep 21, 2026, 2:22 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 21, 2026, 2:22 PM EDT
Completed No phase listed Observational

NAPS: Non-awake Versus Awake Placement of Spinal Cord Stimulators

NCT02284542
View directory record Official record
Conditions
Chronic Pain, Sciatica, Failed Back Surgery Syndrome
Interventions
Awake, Non-Awake
Procedure
Lead sponsor
St. Luke's Hospital, Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
34 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2017
U.S. locations
4
States / cities
Bethlehem, Pennsylvania • Danville, Pennsylvania • Hershey, Pennsylvania + 1 more
Source: ClinicalTrials.gov public record
Updated Oct 21, 2021 · Synced Sep 21, 2026, 2:22 PM EDT
Terminated Not applicable Interventional

SENSE (Subcutaneous and Epidural Neuromodulation System Evaluation) Study

NCT01990287
View directory record Official record
Conditions
Failed Back Surgery Syndrome, Post-Laminectomy Syndrome, Low Back Pain
Interventions
SCS and PNfS, SCS Alone
Device
Lead sponsor
Abbott Medical Devices
Industry
Eligibility
22 Years and older
Enrollment
38 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2016
U.S. locations
28
States / cities
Phoenix, Arizona • Scottsdale, Arizona • Little Rock, Arkansas + 24 more
Source: ClinicalTrials.gov public record
Updated Apr 12, 2016 · Synced Sep 21, 2026, 2:22 PM EDT
Terminated Phase 2 Interventional Accepts healthy volunteers

Duloxetine Impact on Postoperative Pain Control and Outcomes

NCT05611749
View directory record Official record
Conditions
Acute Post-operative Pain, Chronic Post Operative Pain, Narcotic Use, Opioid Use, Opioid Addiction
Interventions
Duloxetine 60 MG, Placebo
Drug · Other
Lead sponsor
Scripps Health
Other
Eligibility
24 Years to 99 Years
Enrollment
17 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
La Jolla, California
Source: ClinicalTrials.gov public record
Updated May 3, 2025 · Synced Sep 21, 2026, 2:22 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 21, 2026, 2:22 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 21, 2026, 2:22 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 21, 2026, 2:22 PM EDT
Recruiting Phase 4 Interventional

Reducing Perioperative Oxidative Stress to Prevent Postoperative Chronic Pain Following Total Knee Arthroplasty

NCT06083480
View directory record Official record
Conditions
Osteoarthritis, Knee, Total Knee Arthroplasty, Chronic Postsurgical Pain
Interventions
GlyNAC (combination of glycine and n-acetylcysteine), Placebo
Drug
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
50 Years and older
Enrollment
148 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2029
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Dec 10, 2025 · Synced Sep 21, 2026, 2:22 PM EDT
Completed No phase listed Observational

Persistent Post-Surgical Pain in Women With BrCA

NCT02266082
View directory record Official record
Conditions
Breast Cancer, Chronic Pain
Interventions
No intervention
Other
Lead sponsor
University of Florida
Other
Eligibility
40 Years to 75 Years · Female only
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Dec 27, 2018 · Synced Sep 21, 2026, 2:22 PM EDT
Completed No phase listed Observational

TEMporal PostOperative Pain Signatures

NCT02407743
View directory record Official record
Conditions
Pain, Postoperative
Interventions
Surgical patients' clinical progression, Genetic markers
Behavioral · Genetic
Lead sponsor
University of Florida
Other
Eligibility
18 Years and older
Enrollment
428 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2020
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Jan 18, 2021 · Synced Sep 21, 2026, 2:22 PM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

Preoperative Regional Nerve Block for Acute and Chronic Post-Operative Pain Following Mastectomy

NCT04019834
View directory record Official record
Conditions
Breast Cancer, Mastectomy, Anesthesia, Local, Narcotic Use
Interventions
regional nerve block with local anesthesia of bupivacaine with steroid, Placebo regional nerveblock with normal saline
Drug · Other
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
19 Years and older · Female only
Enrollment
21 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Aug 2, 2022 · Synced Sep 21, 2026, 2:22 PM EDT
Completed Not applicable Interventional

A Comparison of Scar Infiltration, Scar Deactivation, and Standard of Care for the Treatment of Chronic, Post-Surgical Pain After Cesarean Section

NCT03936309
View directory record Official record
Conditions
Scar, Cesarean Section; Dehiscence
Interventions
Scar Deactivation Surface Release Technique protocol, Scar Infiltration with 0.25-1% Lidocaine, Physical therapy
Other
Lead sponsor
Jennifer Loomis
Federal
Eligibility
18 Years and older · Female only
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2025
U.S. locations
1
States / cities
Scott Air Force Base, Illinois
Source: ClinicalTrials.gov public record
Updated Apr 8, 2025 · Synced Sep 21, 2026, 2:22 PM EDT
Completed Not applicable Interventional

BiZact Tonsillectomy in the Pediatric Population

NCT04725305
View directory record Official record
Conditions
Tonsillectomy, Tonsillitis Chronic, Hemorrhage, Postoperative Pain, Postoperative Hemorrhage, Surgery--Complications, Otorhinolaryngologic Diseases
Interventions
BiZact, Standard of care
Device · Procedure
Lead sponsor
Baylor College of Medicine
Other
Eligibility
Up to 18 Years
Enrollment
144 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jul 28, 2024 · Synced Sep 21, 2026, 2:22 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 21, 2026, 2:22 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 21, 2026, 2:22 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 21, 2026, 2:22 PM EDT
Recruiting Not applicable Interventional

Studying Melatonin and Recovery in Teens

NCT06093477
View directory record Official record
Conditions
Juvenile; Scoliosis, Scoliosis Idiopathic, Scoliosis; Adolescence, Scoliosis;Congenital, Kyphosis, Spondylolisthesis, Pectus Surgery, Hip Surgery
Interventions
Fast-Dissolve Melatonin Pill, Fast-Dissolve Placebo Pill
Dietary Supplement · Other
Lead sponsor
Stanford University
Other
Eligibility
12 Years to 18 Years
Enrollment
45 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2028
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated Mar 17, 2026 · Synced Sep 21, 2026, 2:22 PM EDT
Not yet recruiting Phase 3 Interventional

An Artificial Intelligence Driven Approach to Optimize Patient Selection for a Transitional Pain Service

NCT07296770
View directory record Official record
Conditions
Postsurgical Pain Management, Postsurgical Pain, Chronic, Opioid Use After Surgery
Interventions
TPS-Select, Pharmacologic Pain Management, Interventional Pain Procedures, Psychological Management and Pain Education, Physical Therapy
Device · Drug · Procedure + 1 more
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
126 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Jul 12, 2026 · Synced Sep 21, 2026, 2:22 PM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

Paravertebral Versus Pectoralis Block for Post Mastectomy Pain

NCT03656679
View directory record Official record
Conditions
Pain, Postoperative, Post-Mastectomy Chronic Pain Syndrome, Opioid Use
Interventions
Pectoralis Blockade (PECs), Paravertebral Blockade
Procedure
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years to 80 Years · Female only
Enrollment
18 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated May 2, 2021 · Synced Sep 21, 2026, 2:22 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Pre-op Cognitive Behavior Therapy to Decrease Chronic Post-Surgical Pain in TKA

NCT04814992
View directory record Official record
Conditions
Chronic Post-Surgical Pain
Interventions
Computer-Assisted Preoperative CBT Intervention (PAINTrainer)
Behavioral
Lead sponsor
University of Pennsylvania
Other
Eligibility
22 Years and older
Enrollment
54 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2023
U.S. locations
4
States / cities
Philadelphia, Pennsylvania • Radnor, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Oct 16, 2024 · Synced Sep 21, 2026, 2:22 PM EDT