{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Capsaicin+control",
    "query": {
      "intervention": "Capsaicin control"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 47,
    "total_pages": 5,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Capsaicin+control&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-06T01:09:11.700Z",
  "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": "NCT02678416",
      "title": "Reduction in Pain Intensity Following IV or Oral Pain-relieving Products",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Pain"
      ],
      "interventions": [
        {
          "name": "IV Acetaminophen (Treatment A)",
          "type": "DRUG"
        },
        {
          "name": "Oral Acetaminophen (Treatment B)",
          "type": "DRUG"
        },
        {
          "name": "Placebo (Treatment C)",
          "type": "DRUG"
        },
        {
          "name": "Morphine (Treatment D)",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Mallinckrodt",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "MALE",
        "summary": "18 Years to 55 Years · Male only"
      },
      "enrollment_count": 79,
      "start_date": "2015-12-07",
      "completion_date": "2016-06-13",
      "has_results": true,
      "last_update_posted_date": "2020-02-05",
      "last_synced_at": "2026-09-06T01:09:11.700Z",
      "location_count": 1,
      "location_summary": "Salt Lake City, Utah",
      "locations": [
        {
          "city": "Salt Lake City",
          "state": "Utah"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02678416"
    },
    {
      "nct_id": "NCT00683267",
      "title": "Efficacy and Safety Study of 4975 in Patients Undergoing Total Hip Replacement",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Arthroplasty"
      ],
      "interventions": [
        {
          "name": "4975, highly purified capsaicin",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Anesiva, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "18 Years to 85 Years"
      },
      "enrollment_count": 118,
      "start_date": "2007-09",
      "completion_date": "2008-12",
      "has_results": false,
      "last_update_posted_date": "2009-05-04",
      "last_synced_at": "2026-09-06T01:09:11.700Z",
      "location_count": 10,
      "location_summary": "Birmingham, Alabama • Arcadia, California • Glendale, California + 7 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Arcadia",
          "state": "California"
        },
        {
          "city": "Glendale",
          "state": "California"
        },
        {
          "city": "Oakland",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00683267"
    },
    {
      "nct_id": "NCT02390089",
      "title": "Cough According to Stimulus Type in PD",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Parkinson's Disease"
      ],
      "interventions": [
        {
          "name": "Capsaicin vapor",
          "type": "DRUG"
        },
        {
          "name": "fog",
          "type": "OTHER"
        },
        {
          "name": "Videofluoroscopic swallow evaluation",
          "type": "RADIATION"
        },
        {
          "name": "Nebulizer",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER",
        "RADIATION",
        "DEVICE"
      ],
      "sponsor": "University of Florida",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "50 Years to 80 Years"
      },
      "enrollment_count": 158,
      "start_date": "2015-04",
      "completion_date": "2019-02-13",
      "has_results": false,
      "last_update_posted_date": "2019-02-15",
      "last_synced_at": "2026-09-06T01:09:11.700Z",
      "location_count": 1,
      "location_summary": "Gainesville, Florida",
      "locations": [
        {
          "city": "Gainesville",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02390089"
    },
    {
      "nct_id": "NCT01231750",
      "title": "Efficacy of Topical Capsaicin Cream for Stable Angina",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Stable Angina"
      ],
      "interventions": [
        {
          "name": "Capsaicin",
          "type": "DRUG"
        },
        {
          "name": "Placebo cream",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Neal Weintraub",
      "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": 7,
      "start_date": "2010-10",
      "completion_date": "2012-03",
      "has_results": true,
      "last_update_posted_date": "2015-06-25",
      "last_synced_at": "2026-09-06T01:09:11.700Z",
      "location_count": 1,
      "location_summary": "Cincinnati, Ohio",
      "locations": [
        {
          "city": "Cincinnati",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01231750"
    },
    {
      "nct_id": "NCT00008476",
      "title": "Capsaicin to Control Pain Following Third Molar Extraction",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Facial Pain"
      ],
      "interventions": [
        {
          "name": "Capsaicin",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "National Institute of Dental and Craniofacial Research (NIDCR)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 162,
      "start_date": "2001-01",
      "completion_date": "2004-01",
      "has_results": false,
      "last_update_posted_date": "2008-03-04",
      "last_synced_at": "2026-09-06T01:09:11.700Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00008476"
    },
    {
      "nct_id": "NCT00001307",
      "title": "Positron Emission Tomography to Measure Pain and Pain Control",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Healthy",
        "Hyperalgesia",
        "Pain",
        "Peripheral Nervous System Disease"
      ],
      "interventions": [
        {
          "name": "Oxygen-15 Water",
          "type": "DRUG"
        },
        {
          "name": "Capsaicin",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "National Institute of Dental and Craniofacial Research (NIDCR)",
      "sponsor_class": "NIH",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 273,
      "start_date": "1992-08",
      "completion_date": "2005-08",
      "has_results": false,
      "last_update_posted_date": "2008-03-04",
      "last_synced_at": "2026-09-06T01:09:11.700Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00001307"
    },
    {
      "nct_id": "NCT00085761",
      "title": "Study of NGX-4010 for Treatment of Painful HIV-Associated Neuropathy",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "HIV Infections",
        "Peripheral Nervous System Diseases",
        "Pain"
      ],
      "interventions": [
        {
          "name": "Capsaicin Dermal Patch",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "NeurogesX",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": null,
      "start_date": null,
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2008-03-06",
      "last_synced_at": "2026-09-06T01:09:11.700Z",
      "location_count": 2,
      "location_summary": "Sarasota, Florida • Annandale, Virginia",
      "locations": [
        {
          "city": "Sarasota",
          "state": "Florida"
        },
        {
          "city": "Annandale",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00085761"
    },
    {
      "nct_id": "NCT00254449",
      "title": "Effect of NGX-4010 on ENFD and Sensory Function",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Human Volunteers"
      ],
      "interventions": [
        {
          "name": "NGX-4010",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "NeurogesX",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "40 Years",
        "sex": "ALL",
        "summary": "18 Years to 40 Years"
      },
      "enrollment_count": 36,
      "start_date": "2005-11",
      "completion_date": "2006-05",
      "has_results": false,
      "last_update_posted_date": "2009-02-16",
      "last_synced_at": "2026-09-06T01:09:11.700Z",
      "location_count": 1,
      "location_summary": "Minneapolis, Minnesota",
      "locations": [
        {
          "city": "Minneapolis",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00254449"
    },
    {
      "nct_id": "NCT07238465",
      "title": "Exploring Sympathetic Nervous System Function in Individuals With Down Syndrome",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Down Syndrome",
        "Autonomic Dysfunction"
      ],
      "interventions": [
        {
          "name": "Fear Response",
          "type": "OTHER"
        },
        {
          "name": "Cold Stress",
          "type": "OTHER"
        },
        {
          "name": "Pain Response",
          "type": "OTHER"
        },
        {
          "name": "Caffeine",
          "type": "OTHER"
        },
        {
          "name": "12-Hour Fast",
          "type": "OTHER"
        },
        {
          "name": "Maximal Dynamic Exercise",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Colorado, Denver",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "50 Years",
        "sex": "ALL",
        "summary": "18 Years to 50 Years"
      },
      "enrollment_count": 200,
      "start_date": "2026-04-06",
      "completion_date": "2029-12",
      "has_results": false,
      "last_update_posted_date": "2026-05-04",
      "last_synced_at": "2026-09-06T01:09:11.700Z",
      "location_count": 1,
      "location_summary": "Aurora, Colorado",
      "locations": [
        {
          "city": "Aurora",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07238465"
    },
    {
      "nct_id": "NCT03661996",
      "title": "An Open-label, 8-week Safety, Efficacy, and Assessment of Cooling Methods for Administration of CNTX-4975-05 for Knee OA",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Knee Osteoarthritis"
      ],
      "interventions": [
        {
          "name": "CNTX-4975-05",
          "type": "DRUG"
        },
        {
          "name": "Lidocaine without epinephrine",
          "type": "DRUG"
        },
        {
          "name": "ElastoGel",
          "type": "DEVICE"
        },
        {
          "name": "Breg Ice Water Pump",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DEVICE"
      ],
      "sponsor": "Centrexion Therapeutics",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": "95 Years",
        "sex": "ALL",
        "summary": "40 Years to 95 Years"
      },
      "enrollment_count": 854,
      "start_date": "2018-09-18",
      "completion_date": "2019-10-22",
      "has_results": true,
      "last_update_posted_date": "2022-03-09",
      "last_synced_at": "2026-09-06T01:09:11.700Z",
      "location_count": 28,
      "location_summary": "Birmingham, Alabama • Peoria, Arizona • Tucson, Arizona + 24 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Peoria",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Carmichael",
          "state": "California"
        },
        {
          "city": "Cerritos",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03661996"
    }
  ]
}