{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Pain%2C+Chronic",
    "query": {
      "condition": "Pain, Chronic"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 2476,
    "total_pages": 248,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Pain%2C+Chronic&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-05-21T22:55:28.679Z",
  "attribution": "Data derived from public ClinicalTrials.gov records. The official record at https://clinicaltrials.gov/ remains the source of truth for current availability, contacts, and full study details.",
  "notes": [
    "This endpoint exposes only public summary fields — no participant contact emails, phone numbers, or scraped investigator contact details.",
    "For contact information and full protocol detail, follow each trial's `official_url` to the ClinicalTrials.gov record.",
    "This API is a navigational aid. It does not provide medical advice, eligibility determinations, or compensation guarantees."
  ],
  "trials": [
    {
      "nct_id": "NCT03969654",
      "title": "ROSA Robot Used in Total Knee Replacement Post Market Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Knee Pain",
        "Chronic Osteoarthritis",
        "Avascular Necrosis of the Femoral Condyle",
        "Moderate Varus, Valgus or Flexion Deformities",
        "Rheumatoid Arthritis"
      ],
      "interventions": [
        {
          "name": "PERSONA Total Knee",
          "type": "DEVICE"
        },
        {
          "name": "Vanguard Total Knee",
          "type": "DEVICE"
        },
        {
          "name": "NexGen Total Knee",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Zimmer Biomet",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 181,
      "start_date": "2020-05-01",
      "completion_date": "2023-09-22",
      "has_results": true,
      "last_update_posted_date": "2024-05-03",
      "last_synced_at": "2026-05-21T22:55:28.679Z",
      "location_count": 5,
      "location_summary": "Vail, Colorado • Westminster, Colorado • Springfield, Illinois + 2 more",
      "locations": [
        {
          "city": "Vail",
          "state": "Colorado"
        },
        {
          "city": "Westminster",
          "state": "Colorado"
        },
        {
          "city": "Springfield",
          "state": "Illinois"
        },
        {
          "city": "Detroit",
          "state": "Michigan"
        },
        {
          "city": "North Chesterfield",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03969654"
    },
    {
      "nct_id": "NCT05956067",
      "title": "Chromatic Retinal Stimulation to Reduce Chronic Pain and Pain Sensitivity",
      "overall_status": "SUSPENDED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Chronic Low-back Pain",
        "Chronic Pain",
        "Fibromyalgia"
      ],
      "interventions": [
        {
          "name": "Green Light stimulation",
          "type": "DEVICE"
        },
        {
          "name": "Equal Energy White stimulation",
          "type": "DEVICE"
        },
        {
          "name": "S-cone modulating white light",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University of North Carolina, Chapel Hill",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 60,
      "start_date": "2023-08-25",
      "completion_date": "2026-07-29",
      "has_results": false,
      "last_update_posted_date": "2026-02-17",
      "last_synced_at": "2026-05-21T22:55:28.679Z",
      "location_count": 1,
      "location_summary": "Chapel Hill, North Carolina",
      "locations": [
        {
          "city": "Chapel Hill",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05956067"
    },
    {
      "nct_id": "NCT02284542",
      "title": "NAPS: Non-awake Versus Awake Placement of Spinal Cord Stimulators",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Chronic Pain",
        "Sciatica",
        "Failed Back Surgery Syndrome"
      ],
      "interventions": [
        {
          "name": "Awake",
          "type": "PROCEDURE"
        },
        {
          "name": "Non-Awake",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "St. Luke's Hospital, Pennsylvania",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 34,
      "start_date": "2014-11-01",
      "completion_date": "2017-01-31",
      "has_results": false,
      "last_update_posted_date": "2021-10-22",
      "last_synced_at": "2026-05-21T22:55:28.679Z",
      "location_count": 4,
      "location_summary": "Bethlehem, Pennsylvania • Danville, Pennsylvania • Hershey, Pennsylvania + 1 more",
      "locations": [
        {
          "city": "Bethlehem",
          "state": "Pennsylvania"
        },
        {
          "city": "Danville",
          "state": "Pennsylvania"
        },
        {
          "city": "Hershey",
          "state": "Pennsylvania"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02284542"
    },
    {
      "nct_id": "NCT03986866",
      "title": "Video-based, Patient-Focused Opioid Education in the Perioperative Period",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Opioid Use",
        "Chronic Pain Post-Procedural"
      ],
      "interventions": [
        {
          "name": "Video",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Arkansas",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 110,
      "start_date": "2019-04-29",
      "completion_date": "2020-04-01",
      "has_results": true,
      "last_update_posted_date": "2022-04-26",
      "last_synced_at": "2026-05-21T22:55:28.679Z",
      "location_count": 1,
      "location_summary": "Little Rock, Arkansas",
      "locations": [
        {
          "city": "Little Rock",
          "state": "Arkansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03986866"
    },
    {
      "nct_id": "NCT04349930",
      "title": "The CBD-IC Randomized Controlled Trial: Evaluation of Hemp Cannabidiol SuppositoRies for Pain and Urinary SymptOms in INterstitial Cystitis (CHRONIC)",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Interstitial Cystitis",
        "Bladder Pain Syndrome"
      ],
      "interventions": [
        {
          "name": "Cannabidiol vaginal suppository",
          "type": "DRUG"
        },
        {
          "name": "Placebo vaginal suppository",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of New Mexico",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 0,
      "start_date": "2021-01",
      "completion_date": "2022-09",
      "has_results": false,
      "last_update_posted_date": "2021-01-15",
      "last_synced_at": "2026-05-21T22:55:28.679Z",
      "location_count": 1,
      "location_summary": "Albuquerque, New Mexico",
      "locations": [
        {
          "city": "Albuquerque",
          "state": "New Mexico"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04349930"
    },
    {
      "nct_id": "NCT02824562",
      "title": "Pilot Testing of a Behavioral Intervention for Chronic Pain in Individuals With HIV",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Chronic Pain"
      ],
      "interventions": [
        {
          "name": "Intervention",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Control",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Pittsburgh",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 44,
      "start_date": "2016-07",
      "completion_date": "2017-08-22",
      "has_results": true,
      "last_update_posted_date": "2018-10-10",
      "last_synced_at": "2026-05-21T22:55:28.679Z",
      "location_count": 1,
      "location_summary": "Birmingham, Alabama",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02824562"
    },
    {
      "nct_id": "NCT04107519",
      "title": "Goal-Directed Resilience Training to Mitigate Chronic Pain in Former Football Players",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Chronic Pain"
      ],
      "interventions": [
        {
          "name": "Goal-Directed Resilience Training",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Morehouse School of Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "MALE",
        "summary": "18 Years to 65 Years · Male only"
      },
      "enrollment_count": 40,
      "start_date": "2019-08-14",
      "completion_date": "2023-06-30",
      "has_results": false,
      "last_update_posted_date": "2022-08-24",
      "last_synced_at": "2026-05-21T22:55:28.679Z",
      "location_count": 1,
      "location_summary": "Atlanta, Georgia",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04107519"
    },
    {
      "nct_id": "NCT00429624",
      "title": "Randomized Controlled Trial of Chiropractic Manipulation Versus Medical Therapy for Chronic Neck Pain",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Neck Pain"
      ],
      "interventions": [
        {
          "name": "Chiropractic manipulation",
          "type": "PROCEDURE"
        },
        {
          "name": "acetaminophen",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DRUG"
      ],
      "sponsor": "University of Colorado, Denver",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "18 Years to 70 Years"
      },
      "enrollment_count": 70,
      "start_date": "1994-09",
      "completion_date": "2007-01",
      "has_results": false,
      "last_update_posted_date": "2013-02-05",
      "last_synced_at": "2026-05-21T22:55:28.679Z",
      "location_count": 1,
      "location_summary": "Denver, Colorado",
      "locations": [
        {
          "city": "Denver",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00429624"
    },
    {
      "nct_id": "NCT03299556",
      "title": "Effect of Wearable Health Technology on Patients Treated for Chronic Pain at Geisinger Health System",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Chronic Pain"
      ],
      "interventions": [
        {
          "name": "WHT",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Purdue Pharma LP",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "18 Years to 75 Years"
      },
      "enrollment_count": 420,
      "start_date": "2017-10-05",
      "completion_date": "2019-11-30",
      "has_results": true,
      "last_update_posted_date": "2024-09-19",
      "last_synced_at": "2026-05-21T22:55:28.679Z",
      "location_count": 1,
      "location_summary": "Danville, Pennsylvania",
      "locations": [
        {
          "city": "Danville",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03299556"
    },
    {
      "nct_id": "NCT05593237",
      "title": "Transcranial Magnetic Stimulation for Chronic Neuropathic Pain",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "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": [
        {
          "name": "High Frequency rTMS",
          "type": "DEVICE"
        },
        {
          "name": "Low Frequency rTMS",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University of California, San Francisco",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 32,
      "start_date": "2022-04-25",
      "completion_date": "2026-12-30",
      "has_results": false,
      "last_update_posted_date": "2026-03-13",
      "last_synced_at": "2026-05-21T22:55:28.679Z",
      "location_count": 1,
      "location_summary": "San Francisco, California",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05593237"
    }
  ]
}