{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Challenge+Test",
    "query": {
      "condition": "Challenge Test"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 31,
    "total_pages": 4,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Challenge+Test&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-26T04:42:51.917Z",
  "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": "NCT05087823",
      "title": "The Mixed Meal Challenge Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cardiovascular Diseases",
        "Hyperlipidemias"
      ],
      "interventions": [
        {
          "name": "Lipid Challenge",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Glucose Challenge",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Mixed Meal Challenge",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Emory University",
      "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": 11,
      "start_date": "2021-11-02",
      "completion_date": "2022-05-19",
      "has_results": false,
      "last_update_posted_date": "2023-05-01",
      "last_synced_at": "2026-09-26T04:42:51.917Z",
      "location_count": 1,
      "location_summary": "Atlanta, Georgia",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05087823"
    },
    {
      "nct_id": "NCT03158831",
      "title": "Drug Challenges Without Prior Skin Testing",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Drug Hypersensitivity",
        "Penicillin Allergy",
        "Antibiotic Allergy"
      ],
      "interventions": [
        {
          "name": "Placebo-Controlled Graded Drug Challenge",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Montefiore Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "7 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "7 Years and older"
      },
      "enrollment_count": 166,
      "start_date": "2016-01-13",
      "completion_date": "2021-10-01",
      "has_results": false,
      "last_update_posted_date": "2021-11-16",
      "last_synced_at": "2026-09-26T04:42:51.917Z",
      "location_count": 1,
      "location_summary": "The Bronx, New York",
      "locations": [
        {
          "city": "The Bronx",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03158831"
    },
    {
      "nct_id": "NCT04531540",
      "title": "Study to Determine Skin Irritation and/or Sensitization Potential of an Antifungal Cream Containing Trolamine (Repeated Insult Patch Test)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Hypersensitivity"
      ],
      "interventions": [
        {
          "name": "Butenafine HCl 1% (BAY1896425)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Bayer",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "79 Years",
        "sex": "ALL",
        "summary": "18 Years to 79 Years"
      },
      "enrollment_count": 225,
      "start_date": "2013-09-09",
      "completion_date": "2013-10-18",
      "has_results": true,
      "last_update_posted_date": "2020-11-17",
      "last_synced_at": "2026-09-26T04:42:51.917Z",
      "location_count": 1,
      "location_summary": "Fairfield, New Jersey",
      "locations": [
        {
          "city": "Fairfield",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04531540"
    },
    {
      "nct_id": "NCT01648920",
      "title": "A Study to Explore the Utility of Fractional Exhaled Nitric Oxide (FeNO) Compared With Methacholine Challenge (MCC) Testing in the Assessment of Patients With Suspected But Undiagnosed Asthma",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Asthma"
      ],
      "interventions": [
        {
          "name": "NIOX MINO® Instrument (09-1100)",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Aerocrine AB",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "7 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "7 Years and older"
      },
      "enrollment_count": 50,
      "start_date": "2012-06",
      "completion_date": "2012-11",
      "has_results": true,
      "last_update_posted_date": "2014-04-09",
      "last_synced_at": "2026-09-26T04:42:51.917Z",
      "location_count": 8,
      "location_summary": "Blue Bell, Pennsylvania • Collegeville, Pennsylvania • Doylestown, Pennsylvania + 5 more",
      "locations": [
        {
          "city": "Blue Bell",
          "state": "Pennsylvania"
        },
        {
          "city": "Collegeville",
          "state": "Pennsylvania"
        },
        {
          "city": "Doylestown",
          "state": "Pennsylvania"
        },
        {
          "city": "Jenkintown",
          "state": "Pennsylvania"
        },
        {
          "city": "King of Prussia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01648920"
    },
    {
      "nct_id": "NCT03560960",
      "title": "Multi-Center Development of a Novel Diagnostic Test for Alzheimer's Disease",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Alzheimer Disease",
        "Mild Cognitive Impairment"
      ],
      "interventions": [
        {
          "name": "Pramlintide challenge test",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Boston University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "60 Years",
        "maximum_age": "90 Years",
        "sex": "ALL",
        "summary": "60 Years to 90 Years"
      },
      "enrollment_count": 57,
      "start_date": "2020-02-04",
      "completion_date": "2026-11",
      "has_results": false,
      "last_update_posted_date": "2026-05-28",
      "last_synced_at": "2026-09-26T04:42:51.917Z",
      "location_count": 3,
      "location_summary": "Indianapolis, Indiana • Boston, Massachusetts • Jamaica Plain, Massachusetts",
      "locations": [
        {
          "city": "Indianapolis",
          "state": "Indiana"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Jamaica Plain",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03560960"
    },
    {
      "nct_id": "NCT00001893",
      "title": "Study of TNFR:Fc (Enbrel) in the Treatment of Asthma",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Asthma"
      ],
      "interventions": [
        {
          "name": "TNFR:Fc",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "National Heart, Lung, and Blood Institute (NHLBI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 150,
      "start_date": "1999-08-17",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2017-07-02",
      "last_synced_at": "2026-09-26T04:42:51.917Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00001893"
    },
    {
      "nct_id": "NCT00137319",
      "title": "Impedance Threshold Device Tilt Study",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Orthostatic Hypotension"
      ],
      "interventions": [
        {
          "name": "Impedance threshold device",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "United States Army Institute of Surgical Research",
      "sponsor_class": "FED",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 2,
      "start_date": "2004-10",
      "completion_date": "2006-06",
      "has_results": false,
      "last_update_posted_date": "2015-07-22",
      "last_synced_at": "2026-09-26T04:42:51.917Z",
      "location_count": 1,
      "location_summary": "Fort Sam Houston, Texas",
      "locations": [
        {
          "city": "Fort Sam Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00137319"
    },
    {
      "nct_id": "NCT07011264",
      "title": "Economic Empowerment and Health Promotion of Uganda Grandmother-caregivers.",
      "overall_status": "NOT_YET_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Financial Burden",
        "Health Behavior",
        "Social Support"
      ],
      "interventions": [
        {
          "name": "The BAJJAJJA intervention",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Utah",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "50 Years and older · Female only"
      },
      "enrollment_count": 24,
      "start_date": "2025-10-01",
      "completion_date": "2029-08-30",
      "has_results": false,
      "last_update_posted_date": "2025-08-14",
      "last_synced_at": "2026-09-26T04:42:51.917Z",
      "location_count": 1,
      "location_summary": "Salt Lake City, Utah",
      "locations": [
        {
          "city": "Salt Lake City",
          "state": "Utah"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07011264"
    },
    {
      "nct_id": "NCT03424395",
      "title": "Personalized Dietary Program and Markers of Wellness",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Healthy",
        "Metabolism"
      ],
      "interventions": [
        {
          "name": "Personalized dietary and wellness program",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Habit, LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "30 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "30 Years to 65 Years"
      },
      "enrollment_count": 110,
      "start_date": "2017-10-28",
      "completion_date": "2018-12-21",
      "has_results": false,
      "last_update_posted_date": "2019-02-25",
      "last_synced_at": "2026-09-26T04:42:51.917Z",
      "location_count": 1,
      "location_summary": "Camden, New Jersey",
      "locations": [
        {
          "city": "Camden",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03424395"
    },
    {
      "nct_id": "NCT02606721",
      "title": "Food Allergy Challenge Diagnostic Study",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Food Hypersensitivity"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "ORA, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "5 Years",
        "maximum_age": "35 Years",
        "sex": "ALL",
        "summary": "5 Years to 35 Years"
      },
      "enrollment_count": 6,
      "start_date": "2016-03",
      "completion_date": "2016-10",
      "has_results": false,
      "last_update_posted_date": "2018-10-02",
      "last_synced_at": "2026-09-26T04:42:51.917Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02606721"
    }
  ]
}