{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Complex+Regional+Pain+Syndrome+Type+II",
    "query": {
      "condition": "Complex Regional Pain Syndrome Type II"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 9,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-05-22T01:40:03.195Z",
  "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": "NCT00431847",
      "title": "Regional Anesthesia Military Battlefield Pain Outcomes Study",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Anxiety Disorders",
        "Complex Regional Pain Syndrome Type II",
        "Depressive Disorders",
        "Post-Traumatic Stress Disorder",
        "Substance Abuse"
      ],
      "interventions": [
        {
          "name": "Regional Anesthesia",
          "type": "PROCEDURE"
        },
        {
          "name": "Standard Pain Management Protocol",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "VA Office of Research and Development",
      "sponsor_class": "FED",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 386,
      "start_date": "2007-10",
      "completion_date": "2014-11",
      "has_results": true,
      "last_update_posted_date": "2017-05-15",
      "last_synced_at": "2026-05-22T01:40:03.195Z",
      "location_count": 3,
      "location_summary": "Bethesda, Maryland • Philadelphia, Pennsylvania • Fort Sam Houston, Texas",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        },
        {
          "city": "Fort Sam Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00431847"
    },
    {
      "nct_id": "NCT03954080",
      "title": "Trialing of ISS in Patients With CRPS",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "CRPS I",
        "Causalgia"
      ],
      "interventions": [
        {
          "name": "Intraspinal-optimal stim therapy",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Millennium Pain Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 16,
      "start_date": "2019-06-13",
      "completion_date": "2022-03-31",
      "has_results": false,
      "last_update_posted_date": "2022-04-05",
      "last_synced_at": "2026-05-22T01:40:03.195Z",
      "location_count": 1,
      "location_summary": "Bloomington, Illinois",
      "locations": [
        {
          "city": "Bloomington",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03954080"
    },
    {
      "nct_id": "NCT00033969",
      "title": "Study of Proteins Associated With Complex Regional Pain Syndrome",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Complex Regional Pain Syndromes",
        "Healthy"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "National Institute of Nursing Research (NINR)",
      "sponsor_class": "NIH",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 120,
      "start_date": "2002-04-15",
      "completion_date": "2014-10-23",
      "has_results": false,
      "last_update_posted_date": "2019-12-12",
      "last_synced_at": "2026-05-22T01:40:03.195Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00033969"
    },
    {
      "nct_id": "NCT02800863",
      "title": "TARGET Post-Approval Study",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Complex Regional Pain Syndrome (CRPS)"
      ],
      "interventions": [
        {
          "name": "Dorsal Root Ganglion (DRG) Stimulation (Axium™ Neurostimulator System)",
          "type": "DEVICE"
        },
        {
          "name": "Dorsal Root Ganglion (DRG) Stimulation (Proclaim™ Neurostimulator System)",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Abbott Medical Devices",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "22 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "22 Years to 75 Years"
      },
      "enrollment_count": 426,
      "start_date": "2016-08-23",
      "completion_date": "2021-09-23",
      "has_results": true,
      "last_update_posted_date": "2024-07-08",
      "last_synced_at": "2026-05-22T01:40:03.195Z",
      "location_count": 44,
      "location_summary": "Scottsdale, Arizona • Camarillo, California • Larkspur, California + 38 more",
      "locations": [
        {
          "city": "Scottsdale",
          "state": "Arizona"
        },
        {
          "city": "Camarillo",
          "state": "California"
        },
        {
          "city": "Larkspur",
          "state": "California"
        },
        {
          "city": "Loma Linda",
          "state": "California"
        },
        {
          "city": "Loma Linda",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02800863"
    },
    {
      "nct_id": "NCT06306157",
      "title": "Low Dose Naltrexone Therapy for Complex Regional Pain Syndrome",
      "overall_status": "ENROLLING_BY_INVITATION",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Complex Regional Pain Syndrome",
        "Chronic Pain",
        "Causalgia",
        "Complex Regional Pain Syndrome Type I",
        "Complex Regional Pain Syndrome Type II"
      ],
      "interventions": [
        {
          "name": "Low dose naltrexone",
          "type": "DRUG"
        },
        {
          "name": "Placebo sugar capsules",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Hospital for Special Surgery, New York",
      "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": 40,
      "start_date": "2024-01-02",
      "completion_date": "2026-11",
      "has_results": false,
      "last_update_posted_date": "2025-11-26",
      "last_synced_at": "2026-05-22T01:40:03.195Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06306157"
    },
    {
      "nct_id": "NCT00200122",
      "title": "Restore Claims Characterization Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Chronic Refractory Pain Associated With Failed Back Surgery Syndrome, Epidural Fibrosis, Peripheral Causalgia, Complex Regional Pain Syndrome"
      ],
      "interventions": [
        {
          "name": "Spinal Cord Stimulation",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "MedtronicNeuro",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 100,
      "start_date": "2005-01",
      "completion_date": "2007-08",
      "has_results": false,
      "last_update_posted_date": "2009-01-21",
      "last_synced_at": "2026-05-22T01:40:03.195Z",
      "location_count": 8,
      "location_summary": "Chicago, Illinois • Indianapolis, Indiana • Kansas City, Missouri + 5 more",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Indianapolis",
          "state": "Indiana"
        },
        {
          "city": "Kansas City",
          "state": "Missouri"
        },
        {
          "city": "Syosset",
          "state": "New York"
        },
        {
          "city": "Eugene",
          "state": "Oregon"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00200122"
    },
    {
      "nct_id": "NCT02321566",
      "title": "Motor Cortex Stimulation for the Treatment of Chronic Facial, Upper Extremity, and Throat Pain.",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Trigeminal Neuralgia (Burchiel Type I)",
        "Trigeminal Neuralgia (Burchiel Type II)",
        "Trigeminal Neuropathic Pain",
        "Trigeminal Deafferentation Pain",
        "Complex Regional Pain Syndrome (Types I and II, Involving the Upper Extremity)",
        "Glossopharyngeal Neuralgia",
        "Upper Extremity Pain Due to Deafferentation of the Cervical Spine",
        "Central Pain Syndromes"
      ],
      "interventions": [
        {
          "name": "Epidural Motor Cortex Stimulation",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Johns Hopkins University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 1,
      "start_date": "2015-02",
      "completion_date": "2017-11-21",
      "has_results": false,
      "last_update_posted_date": "2019-02-18",
      "last_synced_at": "2026-05-22T01:40:03.195Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02321566"
    },
    {
      "nct_id": "NCT00006289",
      "title": "Neurotropin to Treat Chronic Neuropathic Pain",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Complex Regional Pain Syndrome Type I",
        "Complex Regional Pain Syndrome Type II"
      ],
      "interventions": [
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "Neurotropin",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "National Institute of Nursing Research (NINR)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 21,
      "start_date": "2000-09",
      "completion_date": "2012-06",
      "has_results": true,
      "last_update_posted_date": "2017-08-22",
      "last_synced_at": "2026-05-22T01:40:03.195Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00006289"
    },
    {
      "nct_id": "NCT00538850",
      "title": "Fentanyl Sublingual Spray in Treating Patients With Breakthrough Cancer Pain",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Cancer"
      ],
      "interventions": [
        {
          "name": "Fentanyl sublingual spray",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "INSYS Therapeutics Inc",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 130,
      "start_date": "2007-10",
      "completion_date": "2010-10",
      "has_results": true,
      "last_update_posted_date": "2014-03-05",
      "last_synced_at": "2026-05-22T01:40:03.195Z",
      "location_count": 1,
      "location_summary": "Chandler, Arizona",
      "locations": [
        {
          "city": "Chandler",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00538850"
    }
  ]
}