{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Pain+ratings",
    "query": {
      "intervention": "Pain ratings"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 36,
    "total_pages": 4,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Pain+ratings&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-04T00:18:03.441Z",
  "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": "NCT03911609",
      "title": "Cardiovascular Autonomic Function and Endogenous Pain Modulation",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Fibromyalgia",
        "Exercise",
        "Pain",
        "Autonomic Dysfunction",
        "Physical Activity"
      ],
      "interventions": [
        {
          "name": "Exercise",
          "type": "OTHER"
        },
        {
          "name": "Cognitive Task",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Marquette University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "18 Years to 75 Years"
      },
      "enrollment_count": 250,
      "start_date": "2019-03-20",
      "completion_date": "2022-12-30",
      "has_results": false,
      "last_update_posted_date": "2019-04-11",
      "last_synced_at": "2026-09-04T00:18:03.441Z",
      "location_count": 1,
      "location_summary": "Milwaukee, Wisconsin",
      "locations": [
        {
          "city": "Milwaukee",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03911609"
    },
    {
      "nct_id": "NCT06101303",
      "title": "Endometriosis Pain",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Pelvic Pain",
        "Endometriosis"
      ],
      "interventions": [
        {
          "name": "Psychophysical assessment",
          "type": "OTHER"
        },
        {
          "name": "Psychophysical assessments of experimental pain",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Blood, urine and saliva samples",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Biopsy and surgery-related data.",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "OTHER",
        "BEHAVIORAL",
        "DIAGNOSTIC_TEST",
        "PROCEDURE"
      ],
      "sponsor": "Washington University School of Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": "45 Years",
        "sex": "FEMALE",
        "summary": "12 Years to 45 Years · Female only"
      },
      "enrollment_count": 120,
      "start_date": "2023-09-29",
      "completion_date": "2029-09-01",
      "has_results": false,
      "last_update_posted_date": "2026-07-13",
      "last_synced_at": "2026-09-04T00:18:03.441Z",
      "location_count": 1,
      "location_summary": "St Louis, Missouri",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06101303"
    },
    {
      "nct_id": "NCT05783362",
      "title": "Pain Modulation Effectiveness (PME)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Healthy People"
      ],
      "interventions": [
        {
          "name": "Conditioned Pain Modulation (CPM)",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Florida",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "18 Years to 75 Years"
      },
      "enrollment_count": 60,
      "start_date": "2023-04-01",
      "completion_date": "2023-08-25",
      "has_results": false,
      "last_update_posted_date": "2023-08-31",
      "last_synced_at": "2026-09-04T00:18:03.441Z",
      "location_count": 1,
      "location_summary": "Gainesville, Florida",
      "locations": [
        {
          "city": "Gainesville",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05783362"
    },
    {
      "nct_id": "NCT05759013",
      "title": "Pivotal Evaluation of Abdominal Neuromuscular Electrical Stimulation (VentFree) for Weaning From Mechanical Ventilation",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Respiration, Artificial",
        "Ventilators, Mechanical"
      ],
      "interventions": [
        {
          "name": "Breath synchronized abdominal FES",
          "type": "DEVICE"
        },
        {
          "name": "Sham breath synchronized abdominal FES",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Liberate Medical",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "22 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "22 Years and older"
      },
      "enrollment_count": 250,
      "start_date": "2024-02-15",
      "completion_date": "2026-05-01",
      "has_results": false,
      "last_update_posted_date": "2026-06-02",
      "last_synced_at": "2026-09-04T00:18:03.441Z",
      "location_count": 15,
      "location_summary": "Long Beach, California • Jacksonville, Florida • Hines, Illinois + 9 more",
      "locations": [
        {
          "city": "Long Beach",
          "state": "California"
        },
        {
          "city": "Jacksonville",
          "state": "Florida"
        },
        {
          "city": "Hines",
          "state": "Illinois"
        },
        {
          "city": "Maywood",
          "state": "Illinois"
        },
        {
          "city": "Louisville",
          "state": "Kentucky"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05759013"
    },
    {
      "nct_id": "NCT02921776",
      "title": "Vidatalk Communication Application: Usability, Acceptability and Efficacy Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Nonverbal Communication",
        "Critical Illness"
      ],
      "interventions": [
        {
          "name": "Aim 1 - VidaTalk - post-extubation",
          "type": "OTHER"
        },
        {
          "name": "Aim 2 - VidaTalk - intubated",
          "type": "OTHER"
        },
        {
          "name": "Aim 3 - VidaTalk tablet app",
          "type": "DEVICE"
        },
        {
          "name": "Aim 3 - attention-control with non-VidaTalk tablet",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER",
        "DEVICE"
      ],
      "sponsor": "Ohio State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "99 Years",
        "sex": "ALL",
        "summary": "18 Years to 99 Years"
      },
      "enrollment_count": 147,
      "start_date": "2018-02-19",
      "completion_date": "2019-06-11",
      "has_results": true,
      "last_update_posted_date": "2022-03-31",
      "last_synced_at": "2026-09-04T00:18:03.441Z",
      "location_count": 1,
      "location_summary": "Columbus, Ohio",
      "locations": [
        {
          "city": "Columbus",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02921776"
    },
    {
      "nct_id": "NCT03778177",
      "title": "Neurophysiologic Signatures of Trigeminal Neuralgia Pain",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Trigeminal Neuralgia (TN)"
      ],
      "interventions": [
        {
          "name": "transcranial electrical brain stimulation",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "University of Florida",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "18 Years to 75 Years"
      },
      "enrollment_count": 61,
      "start_date": "2019-02-01",
      "completion_date": "2022-05-12",
      "has_results": false,
      "last_update_posted_date": "2022-10-06",
      "last_synced_at": "2026-09-04T00:18:03.441Z",
      "location_count": 2,
      "location_summary": "Gainesville, Florida",
      "locations": [
        {
          "city": "Gainesville",
          "state": "Florida"
        },
        {
          "city": "Gainesville",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03778177"
    },
    {
      "nct_id": "NCT05654012",
      "title": "Migraine in Adolescents",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Migraine"
      ],
      "interventions": [
        {
          "name": "MRI",
          "type": "DEVICE"
        },
        {
          "name": "Thermal Stimuli",
          "type": "DEVICE"
        },
        {
          "name": "Pressure stimuli",
          "type": "DEVICE"
        },
        {
          "name": "Pain ratings",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Pressure pain thresholds (PPT)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Conditioned pain modulation (CPM) efficiency",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Hormonal assessment",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Migraine-related measures",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Neural assessments",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Pubertal status",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DEVICE",
        "BEHAVIORAL",
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "Washington University School of Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "10 Years",
        "maximum_age": "13 Years",
        "sex": "ALL",
        "summary": "10 Years to 13 Years"
      },
      "enrollment_count": 250,
      "start_date": "2023-06-01",
      "completion_date": "2030-03-15",
      "has_results": false,
      "last_update_posted_date": "2026-07-13",
      "last_synced_at": "2026-09-04T00:18:03.441Z",
      "location_count": 1,
      "location_summary": "St Louis, Missouri",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05654012"
    },
    {
      "nct_id": "NCT04125862",
      "title": "Pain in Fibrous Dysplasia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Fibrous Dysplasia/McCune-Albright Syndrome"
      ],
      "interventions": [
        {
          "name": "MRI-based Neuroimaging",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Non-contrast MRI",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "18F-FDG-PET/CT",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "18F-NaF-PET/CT",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "Boston Children's Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "10 Years",
        "maximum_age": "45 Years",
        "sex": "ALL",
        "summary": "10 Years to 45 Years"
      },
      "enrollment_count": 37,
      "start_date": "2021-01-05",
      "completion_date": "2025-12-01",
      "has_results": false,
      "last_update_posted_date": "2025-12-11",
      "last_synced_at": "2026-09-04T00:18:03.441Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04125862"
    },
    {
      "nct_id": "NCT07044622",
      "title": "Transcutaneous Electrical Nerve Stimulation (TENS) for Intrauterine Device (IUD) Insertion Pain",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Pain"
      ],
      "interventions": [
        {
          "name": "Transcutaneous Electrical Nerve Stimulation (TENS)",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Yale University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 0,
      "start_date": "2025-10-01",
      "completion_date": "2026-12",
      "has_results": false,
      "last_update_posted_date": "2026-02-13",
      "last_synced_at": "2026-09-04T00:18:03.441Z",
      "location_count": 2,
      "location_summary": "New Haven, Connecticut",
      "locations": [
        {
          "city": "New Haven",
          "state": "Connecticut"
        },
        {
          "city": "New Haven",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07044622"
    },
    {
      "nct_id": "NCT06245655",
      "title": "Transcutaneous Electrical Nerve Stimulation (TENS) for IUD Insertion Pain",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Pain"
      ],
      "interventions": [
        {
          "name": "Transcutaneous Electrical Nerve Stimulation (TENS)",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Icahn School of Medicine at Mount Sinai",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 99,
      "start_date": "2024-03-25",
      "completion_date": "2025-04-21",
      "has_results": true,
      "last_update_posted_date": "2026-07-06",
      "last_synced_at": "2026-09-04T00:18:03.441Z",
      "location_count": 5,
      "location_summary": "New Haven, Connecticut • New York, New York",
      "locations": [
        {
          "city": "New Haven",
          "state": "Connecticut"
        },
        {
          "city": "New Haven",
          "state": "Connecticut"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06245655"
    }
  ]
}