{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Capsaicin",
    "query": {
      "intervention": "Capsaicin"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 116,
    "total_pages": 12,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Capsaicin&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-01T20:40:37.372Z",
  "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": "NCT00804154",
      "title": "Resiniferatoxin to Treat Severe Pain Associated With Advanced Cancer",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Intractable Pain",
        "Palliative Care"
      ],
      "interventions": [
        {
          "name": "Intrathecal Resiniferatoxin",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "National Institute of Dental and Craniofacial Research (NIDCR)",
      "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": 45,
      "start_date": "2009-08-14",
      "completion_date": "2027-02-07",
      "has_results": false,
      "last_update_posted_date": "2026-08-31",
      "last_synced_at": "2026-09-01T20:40:37.372Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00804154"
    },
    {
      "nct_id": "NCT03122145",
      "title": "Normal Breathing and Swallowing in Healthy Volunteers",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Healthy"
      ],
      "interventions": [
        {
          "name": "Capsaicin",
          "type": "DRUG"
        },
        {
          "name": "Videofluoroscopic swallow study",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DEVICE"
      ],
      "sponsor": "University of Florida",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "100 Years",
        "sex": "ALL",
        "summary": "18 Years to 100 Years"
      },
      "enrollment_count": 49,
      "start_date": "2017-05-23",
      "completion_date": "2019-02-28",
      "has_results": true,
      "last_update_posted_date": "2021-01-14",
      "last_synced_at": "2026-09-01T20:40:37.372Z",
      "location_count": 1,
      "location_summary": "Gainesville, Florida",
      "locations": [
        {
          "city": "Gainesville",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03122145"
    },
    {
      "nct_id": "NCT02346916",
      "title": "Chest Pain Perception and Capsaicin Sensitivity in Patients With Acute Cardiac Ischemia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Chest Pain"
      ],
      "interventions": [
        {
          "name": "Capsaicin",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Bassett Healthcare",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 22,
      "start_date": "2013-10",
      "completion_date": "2015-08",
      "has_results": true,
      "last_update_posted_date": "2021-03-04",
      "last_synced_at": "2026-09-01T20:40:37.372Z",
      "location_count": 1,
      "location_summary": "Cooperstown, New York",
      "locations": [
        {
          "city": "Cooperstown",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02346916"
    },
    {
      "nct_id": "NCT00064623",
      "title": "Study of NGX-4010 for the Treatment of Painful HIV-Associated Neuropathy",
      "overall_status": "COMPLETED",
      "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": 300,
      "start_date": "2003-08",
      "completion_date": "2005-11",
      "has_results": false,
      "last_update_posted_date": "2008-03-06",
      "last_synced_at": "2026-09-01T20:40:37.372Z",
      "location_count": 35,
      "location_summary": "Phoenix, Arizona • Berkeley, California • San Diego, California + 29 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Berkeley",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00064623"
    },
    {
      "nct_id": "NCT03311594",
      "title": "The Alcohol-Pain Connection: Mechanisms and Genetic/Psychological Correlates",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Pain",
        "Alcohol Drinking",
        "Acute Pain",
        "Drinking Behavior"
      ],
      "interventions": [
        {
          "name": "Low Alcohol",
          "type": "DRUG"
        },
        {
          "name": "Moderate Alcohol",
          "type": "DRUG"
        },
        {
          "name": "Placebo Alcohol",
          "type": "DRUG"
        },
        {
          "name": "Pain Induction",
          "type": "OTHER"
        },
        {
          "name": "No Pain Induction",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Syracuse University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "64 Years",
        "sex": "ALL",
        "summary": "21 Years to 64 Years"
      },
      "enrollment_count": 379,
      "start_date": "2019-05-12",
      "completion_date": "2022-06-30",
      "has_results": false,
      "last_update_posted_date": "2022-08-17",
      "last_synced_at": "2026-09-01T20:40:37.372Z",
      "location_count": 1,
      "location_summary": "Syracuse, New York",
      "locations": [
        {
          "city": "Syracuse",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03311594"
    },
    {
      "nct_id": "NCT04398719",
      "title": "CBD-Microglia PET Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "CBD",
        "Healthy"
      ],
      "interventions": [
        {
          "name": "[11C]PBR28",
          "type": "RADIATION"
        },
        {
          "name": "Low-dose lipopolysaccharide",
          "type": "DRUG"
        },
        {
          "name": "Intradermal Capsaicin",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "RADIATION",
        "DRUG"
      ],
      "sponsor": "Yale University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "18 Years to 55 Years"
      },
      "enrollment_count": 28,
      "start_date": "2021-05-07",
      "completion_date": "2024-12-11",
      "has_results": false,
      "last_update_posted_date": "2026-04-29",
      "last_synced_at": "2026-09-01T20:40:37.372Z",
      "location_count": 1,
      "location_summary": "New Haven, Connecticut",
      "locations": [
        {
          "city": "New Haven",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04398719"
    },
    {
      "nct_id": "NCT01883102",
      "title": "The Effect of Ablation of Epidermal Nerve Fibers Using Capsaicin Cream",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Pain"
      ],
      "interventions": [
        {
          "name": "Capsaicin 0.1%",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Mayo Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "39 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "39 Years and older · Female only"
      },
      "enrollment_count": 1,
      "start_date": "2013-06",
      "completion_date": "2013-06",
      "has_results": false,
      "last_update_posted_date": "2013-06-21",
      "last_synced_at": "2026-09-01T20:40:37.372Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01883102"
    },
    {
      "nct_id": "NCT00004316",
      "title": "Phase I/II Randomized, Placebo-Controlled Study of Capsaicin for Interstitial Cystitis and Vulvar Vestibulitis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Interstitial Cystitis",
        "Vulvar Diseases"
      ],
      "interventions": [
        {
          "name": "capsaicin",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 139,
      "start_date": "1995-06",
      "completion_date": "2007-08",
      "has_results": false,
      "last_update_posted_date": "2025-05-04",
      "last_synced_at": "2026-09-01T20:40:37.372Z",
      "location_count": 1,
      "location_summary": "Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00004316"
    },
    {
      "nct_id": "NCT01595620",
      "title": "Cannabinoid Modulation of Pain",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Pain"
      ],
      "interventions": [
        {
          "name": "Thermal",
          "type": "OTHER"
        },
        {
          "name": "Electrical",
          "type": "OTHER"
        },
        {
          "name": "Capsaicin",
          "type": "OTHER"
        },
        {
          "name": "THC",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "OTHER",
        "DRUG"
      ],
      "sponsor": "Yale University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "18 Years to 55 Years"
      },
      "enrollment_count": 6,
      "start_date": "2011-11-09",
      "completion_date": "2012-04-19",
      "has_results": false,
      "last_update_posted_date": "2022-03-09",
      "last_synced_at": "2026-09-01T20:40:37.372Z",
      "location_count": 1,
      "location_summary": "West Haven, Connecticut",
      "locations": [
        {
          "city": "West Haven",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01595620"
    },
    {
      "nct_id": "NCT05106400",
      "title": "Clinical Adhesion Study Between ZTlido 1.8% and Three Over-the-counter External Analgesic Lidocaine-containing Patches",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy"
      ],
      "interventions": [
        {
          "name": "ZTlido (Lidocaine Topical System) 1.8%",
          "type": "DRUG"
        },
        {
          "name": "Salonpas (Lidocaine Patch 4%)",
          "type": "DRUG"
        },
        {
          "name": "Aspercreme (Lidocaine Patch 4%)",
          "type": "DRUG"
        },
        {
          "name": "IcyHot (Lidocaine 4% + Menthol 1% Patch)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Scilex Pharmaceuticals, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 24,
      "start_date": "2021-07-01",
      "completion_date": "2021-07-21",
      "has_results": false,
      "last_update_posted_date": "2021-11-03",
      "last_synced_at": "2026-09-01T20:40:37.372Z",
      "location_count": 1,
      "location_summary": "Dilworth, Minnesota",
      "locations": [
        {
          "city": "Dilworth",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05106400"
    }
  ]
}