{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Capsaicin&page=4",
    "query": {
      "intervention": "Capsaicin",
      "page": 4
    },
    "page_size": 10
  },
  "pagination": {
    "page": 4,
    "page_size": 10,
    "total_count": 116,
    "total_pages": 12,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Capsaicin&page=5&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Capsaicin&page=3&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-17T10:02:49.518Z",
  "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": "NCT01037816",
      "title": "FS-67 in the Treatment of Pediatric Patients With Ankle Sprain",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Ankle Sprain"
      ],
      "interventions": [
        {
          "name": "FS-67 Patch",
          "type": "DRUG"
        },
        {
          "name": "Placebo Patch",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Hisamitsu Pharmaceutical Co., Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "13 Years",
        "maximum_age": "17 Years",
        "sex": "ALL",
        "summary": "13 Years to 17 Years"
      },
      "enrollment_count": 252,
      "start_date": "2009-12",
      "completion_date": "2010-12",
      "has_results": true,
      "last_update_posted_date": "2022-10-06",
      "last_synced_at": "2026-10-17T10:02:49.518Z",
      "location_count": 23,
      "location_summary": "Birmingham, Alabama • Tucson, Arizona • Hot Springs, Arkansas + 19 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Hot Springs",
          "state": "Arkansas"
        },
        {
          "city": "Anaheim",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01037816"
    },
    {
      "nct_id": "NCT02062710",
      "title": "Antitussive Effect of a Naturally Flavored Syrup Containing Diphenhydramine, Compared With Dextromethorphan and Placebo",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Cough Reflex Sensitivity"
      ],
      "interventions": [
        {
          "name": "diphenhydramine/phenylephrine/cocoa; dextromethorophan; placebo",
          "type": "DRUG"
        },
        {
          "name": "diphenhydramine/phenylephrine/cocoa; placebo; dextromethorphan",
          "type": "DRUG"
        },
        {
          "name": "dextromethorphan; diphenhydramine/phenylephrine/cocoa; placebo",
          "type": "DRUG"
        },
        {
          "name": "dextromethorophan; placebo; diphenhydramine/phenylephrine/cocoa",
          "type": "DRUG"
        },
        {
          "name": "placebo; diphenhydramine/phenylephrine/cocoa; dextromethorphan",
          "type": "DRUG"
        },
        {
          "name": "placebo; dextromethorphan; diphenhydramine/phenylephrine/cocoa",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Montefiore Medical Center",
      "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": "2014-01",
      "completion_date": "2014-06",
      "has_results": true,
      "last_update_posted_date": "2018-02-28",
      "last_synced_at": "2026-10-17T10:02:49.518Z",
      "location_count": 1,
      "location_summary": "The Bronx, New York",
      "locations": [
        {
          "city": "The Bronx",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02062710"
    },
    {
      "nct_id": "NCT04142177",
      "title": "Sequential and Comparative Evaluation of Pain Treatment Effectiveness Response",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Chronic Low Back Pain"
      ],
      "interventions": [
        {
          "name": "Pain EASE",
          "type": "OTHER"
        },
        {
          "name": "Tailored exercise",
          "type": "PROCEDURE"
        },
        {
          "name": "Continued Care and Active Monitoring",
          "type": "OTHER"
        },
        {
          "name": "Cognitive Behavioral Therapy (CBT)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Spinal Manipulation Therapy (SMT)",
          "type": "PROCEDURE"
        },
        {
          "name": "Yoga",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "OTHER",
        "PROCEDURE",
        "BEHAVIORAL"
      ],
      "sponsor": "VA Office of Research and Development",
      "sponsor_class": "FED",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 2529,
      "start_date": "2022-06-13",
      "completion_date": "2027-06-30",
      "has_results": false,
      "last_update_posted_date": "2026-05-04",
      "last_synced_at": "2026-10-17T10:02:49.518Z",
      "location_count": 19,
      "location_summary": "Phoenix, Arizona • Loma Linda, California • Long Beach, California + 16 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Loma Linda",
          "state": "California"
        },
        {
          "city": "Long Beach",
          "state": "California"
        },
        {
          "city": "Palo Alto",
          "state": "California"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04142177"
    },
    {
      "nct_id": "NCT05471557",
      "title": "Effects of Acute Pain on Motor Learning in Young vs Older Adults",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Aging",
        "Pain, Acute",
        "Cognitive Decline",
        "Motor Activity"
      ],
      "interventions": [
        {
          "name": "pain delivery",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "University of Delaware",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "18 Years to 85 Years"
      },
      "enrollment_count": 61,
      "start_date": "2024-08-20",
      "completion_date": "2025-06-05",
      "has_results": false,
      "last_update_posted_date": "2025-12-10",
      "last_synced_at": "2026-10-17T10:02:49.518Z",
      "location_count": 1,
      "location_summary": "Newark, Delaware",
      "locations": [
        {
          "city": "Newark",
          "state": "Delaware"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05471557"
    },
    {
      "nct_id": "NCT00825656",
      "title": "Comparative Study of Sinol and Sinol-M in Patients With Congestion Due to Allergic Rhinitis",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Allergic Rhinitis"
      ],
      "interventions": [
        {
          "name": "Sinol or Sinol-M nasal spray",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Strategic Biosciences",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "12 Years and older"
      },
      "enrollment_count": 20,
      "start_date": "2008-09",
      "completion_date": "2009-01",
      "has_results": false,
      "last_update_posted_date": "2009-01-23",
      "last_synced_at": "2026-10-17T10:02:49.518Z",
      "location_count": 1,
      "location_summary": "Wheaton, Maryland",
      "locations": [
        {
          "city": "Wheaton",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00825656"
    },
    {
      "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": "2026-10-17T10:02:49.518Z",
      "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": "NCT02710162",
      "title": "Accurate Screening Tools for Dysphagia in Amyotrophic Lateral Sclerosis (ALS)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Amyotrophic Lateral Sclerosis"
      ],
      "interventions": [
        {
          "name": "Micro Mouth Pressure Meter",
          "type": "DEVICE"
        },
        {
          "name": "Iowa Oral Performance Instrument",
          "type": "DEVICE"
        },
        {
          "name": "Electrical Impedance Myography",
          "type": "DEVICE"
        },
        {
          "name": "Capsaicin",
          "type": "DRUG"
        },
        {
          "name": "Videofluoroscopic Swallowing Study",
          "type": "PROCEDURE"
        },
        {
          "name": "Pulmonary Function Testing",
          "type": "PROCEDURE"
        },
        {
          "name": "Swallowing Related Quality of Life Questionnaire",
          "type": "OTHER"
        },
        {
          "name": "Functional Oral Intake Scale",
          "type": "OTHER"
        },
        {
          "name": "Amyotrophic Lateral Sclerosis Functional Rating Scale-Revised",
          "type": "OTHER"
        },
        {
          "name": "Eating Assessment Tool-10",
          "type": "OTHER"
        },
        {
          "name": "Communicative Effectiveness Survey",
          "type": "OTHER"
        },
        {
          "name": "The Center for Neurologic Studies Bulbar Function Scale",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DEVICE",
        "DRUG",
        "PROCEDURE",
        "OTHER"
      ],
      "sponsor": "University of Florida",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "21 Years to 85 Years"
      },
      "enrollment_count": 21,
      "start_date": "2016-04",
      "completion_date": "2017-12-19",
      "has_results": false,
      "last_update_posted_date": "2017-12-21",
      "last_synced_at": "2026-10-17T10:02:49.518Z",
      "location_count": 1,
      "location_summary": "Gainesville, Florida",
      "locations": [
        {
          "city": "Gainesville",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02710162"
    },
    {
      "nct_id": "NCT02766517",
      "title": "Biomarker Study in Participants With Migraine",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Migraine Disorders"
      ],
      "interventions": [
        {
          "name": "Capsaicin",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Eli Lilly and Company",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 37,
      "start_date": "2016-09-28",
      "completion_date": "2017-01-01",
      "has_results": true,
      "last_update_posted_date": "2019-04-09",
      "last_synced_at": "2026-10-17T10:02:49.518Z",
      "location_count": 14,
      "location_summary": "Phoenix, Arizona • Encino, California • Glendale, California + 9 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Encino",
          "state": "California"
        },
        {
          "city": "Glendale",
          "state": "California"
        },
        {
          "city": "Los Alamitos",
          "state": "California"
        },
        {
          "city": "Newport Beach",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02766517"
    },
    {
      "nct_id": "NCT00916942",
      "title": "Study of NGX-4010 With the Use of Open Label Lidocaine (2.5%)/Prilocaine (2.5%) Cream for the Treatment of Postherpetic Neuralgia (PHN)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Postherpetic Neuralgia"
      ],
      "interventions": [
        {
          "name": "capsaicin 8%",
          "type": "DRUG"
        },
        {
          "name": "Lidocaine (2.5%)/Prilocaine (2.5%) Cream",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "NeurogesX",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "90 Years",
        "sex": "ALL",
        "summary": "18 Years to 90 Years"
      },
      "enrollment_count": 20,
      "start_date": "2009-06",
      "completion_date": "2009-07",
      "has_results": false,
      "last_update_posted_date": "2009-09-09",
      "last_synced_at": "2026-10-17T10:02:49.518Z",
      "location_count": 6,
      "location_summary": "Naples, Florida • St. Petersburg, Florida • Marietta, Georgia + 3 more",
      "locations": [
        {
          "city": "Naples",
          "state": "Florida"
        },
        {
          "city": "St. Petersburg",
          "state": "Florida"
        },
        {
          "city": "Marietta",
          "state": "Georgia"
        },
        {
          "city": "St Louis",
          "state": "Missouri"
        },
        {
          "city": "Hickory",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00916942"
    },
    {
      "nct_id": "NCT00912262",
      "title": "A Study to Investigate the Tolerability and Effects on Epidermal Nerve Fiber Density of Multiple Low-Concentrations of NGX-1998 in Healthy Volunteers",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Pain"
      ],
      "interventions": [
        {
          "name": "Capsaicin Topical Liquid",
          "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": "2008-06",
      "completion_date": "2008-11",
      "has_results": false,
      "last_update_posted_date": "2009-06-03",
      "last_synced_at": "2026-10-17T10:02:49.518Z",
      "location_count": 1,
      "location_summary": "Salt Lake City, Utah",
      "locations": [
        {
          "city": "Salt Lake City",
          "state": "Utah"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00912262"
    }
  ]
}