{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=QST",
    "query": {
      "intervention": "QST"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 110,
    "total_pages": 11,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=QST&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-09T05:56:15.105Z",
  "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": "NCT05758753",
      "title": "QST for Corneal Nerve Function",
      "overall_status": "SUSPENDED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Corneal Disease",
        "Neuropathy",
        "Dry Eye Disease",
        "Neurotrophic Keratitis"
      ],
      "interventions": [
        {
          "name": "Quantitative Sensory Test",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Tufts Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 108,
      "start_date": "2023-05-16",
      "completion_date": "2027-06-30",
      "has_results": false,
      "last_update_posted_date": "2026-01-08",
      "last_synced_at": "2026-09-09T05:56:15.105Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05758753"
    },
    {
      "nct_id": "NCT01441141",
      "title": "Genetics and Pain Severity in Sickle Cell Disease",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Genotype",
        "Pain",
        "Genetic Variation",
        "Quantitative Sensory Testing (QST)",
        "GCH1"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "National Heart, Lung, and Blood Institute (NHLBI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "99 Years",
        "sex": "ALL",
        "summary": "18 Years to 99 Years"
      },
      "enrollment_count": 67,
      "start_date": "2012-06-17",
      "completion_date": "2020-12-09",
      "has_results": false,
      "last_update_posted_date": "2020-12-10",
      "last_synced_at": "2026-09-09T05:56:15.105Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01441141"
    },
    {
      "nct_id": "NCT04488757",
      "title": "Neurobiological Mechanisms of Stress in Youth With Chronic Widespread Pain",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Chronic Widespread Pain",
        "Stress, Psychological",
        "Stress, Physiological"
      ],
      "interventions": [
        {
          "name": "functional Magnetic Resonance Imaging (fMRI)",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Allostatic Load Composite",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST",
        "OTHER"
      ],
      "sponsor": "Boston Children's Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "11 Years",
        "maximum_age": "17 Years",
        "sex": "ALL",
        "summary": "11 Years to 17 Years"
      },
      "enrollment_count": 70,
      "start_date": "2021-11-04",
      "completion_date": "2026-08-31",
      "has_results": false,
      "last_update_posted_date": "2026-05-22",
      "last_synced_at": "2026-09-09T05:56:15.105Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04488757"
    },
    {
      "nct_id": "NCT02345629",
      "title": "Cordotomy for Refractory Cancer Pain",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Advanced Cancers",
        "Pain"
      ],
      "interventions": [
        {
          "name": "Cordotomy",
          "type": "PROCEDURE"
        },
        {
          "name": "Pain/Symptom Questionnaire",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Sharpness Sensory Testing",
          "type": "PROCEDURE"
        },
        {
          "name": "Heat Pain Sensory Testing",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "BEHAVIORAL"
      ],
      "sponsor": "M.D. Anderson Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 18,
      "start_date": "2015-03-10",
      "completion_date": "2020-02-25",
      "has_results": false,
      "last_update_posted_date": "2023-06-07",
      "last_synced_at": "2026-09-09T05:56:15.105Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02345629"
    },
    {
      "nct_id": "NCT03525509",
      "title": "Epidural Methadone in Healthy Volunteers",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Pain, Acute"
      ],
      "interventions": [
        {
          "name": "Methadone hydrochloride",
          "type": "DRUG"
        },
        {
          "name": "Morphine Sulfate",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "simon.haroutounian",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 13,
      "start_date": "2018-06-04",
      "completion_date": "2019-08-30",
      "has_results": false,
      "last_update_posted_date": "2019-09-18",
      "last_synced_at": "2026-09-09T05:56:15.105Z",
      "location_count": 1,
      "location_summary": "St Louis, Missouri",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03525509"
    },
    {
      "nct_id": "NCT04239976",
      "title": "Scrambler Therapy for the Reduction of Chemotherapy-Induced Neuropathic Pain",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Chemotherapy-Induced Peripheral Neuropathy",
        "Malignant Neoplasm"
      ],
      "interventions": [
        {
          "name": "FitBit",
          "type": "DEVICE"
        },
        {
          "name": "Gait Assessment Test",
          "type": "OTHER"
        },
        {
          "name": "MC5-A Scrambler Therapy",
          "type": "OTHER"
        },
        {
          "name": "Quality-of-Life Assessment",
          "type": "OTHER"
        },
        {
          "name": "Quantitative Sensory Testing",
          "type": "PROCEDURE"
        },
        {
          "name": "Questionnaire Administration",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DEVICE",
        "OTHER",
        "PROCEDURE"
      ],
      "sponsor": "M.D. Anderson Cancer 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": "2019-04-04",
      "completion_date": "2022-03-18",
      "has_results": false,
      "last_update_posted_date": "2022-03-24",
      "last_synced_at": "2026-09-09T05:56:15.105Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04239976"
    },
    {
      "nct_id": "NCT01642030",
      "title": "Study of the Treatment of Experimental Pain in Opioid Dependent Persons on Methadone or Buprenorphine Maintenance",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Opioid Dependence",
        "Pain",
        "Addiction"
      ],
      "interventions": [
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "Hydromorphone",
          "type": "DRUG"
        },
        {
          "name": "Buprenorphine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Johns Hopkins University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "18 Years to 55 Years"
      },
      "enrollment_count": 132,
      "start_date": "2013-08",
      "completion_date": "2017-07",
      "has_results": false,
      "last_update_posted_date": "2017-09-11",
      "last_synced_at": "2026-09-09T05:56:15.105Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01642030"
    },
    {
      "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": "2026-09-09T05:56:15.105Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04125862"
    },
    {
      "nct_id": "NCT07080788",
      "title": "Oklahoma Study of Native American Pain Risk IV: Smoking Cessation and Pain",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Smoking Cessation Intervention",
        "Pain",
        "Smoking (Tobacco) Addiction"
      ],
      "interventions": [
        {
          "name": "Smoking Cessation",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Oklahoma",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 150,
      "start_date": "2025-09-01",
      "completion_date": "2028-06",
      "has_results": false,
      "last_update_posted_date": "2026-03-02",
      "last_synced_at": "2026-09-09T05:56:15.105Z",
      "location_count": 1,
      "location_summary": "Tulsa, Oklahoma",
      "locations": [
        {
          "city": "Tulsa",
          "state": "Oklahoma"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07080788"
    },
    {
      "nct_id": "NCT02751346",
      "title": "Persistent Pain After Cystectomy for Bladder Cancer",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Pain",
        "Surgery",
        "Post Operative Pain"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Washington University School of Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 383,
      "start_date": "2016-01",
      "completion_date": "2017-02",
      "has_results": false,
      "last_update_posted_date": "2018-10-04",
      "last_synced_at": "2026-09-09T05:56:15.105Z",
      "location_count": 1,
      "location_summary": "St Louis, Missouri",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02751346"
    }
  ]
}