{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Challenge&page=44",
    "query": {
      "intervention": "Challenge",
      "page": 44
    },
    "page_size": 10
  },
  "pagination": {
    "page": 44,
    "page_size": 10,
    "total_count": 1541,
    "total_pages": 155,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Challenge&page=45&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Challenge&page=43&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-28T10:18:04.475Z",
  "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": "NCT06002633",
      "title": "Approach-Avoidance and Alcohol Challenge Study in PTSD",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Post-Traumatic Stress Disorder",
        "Alcohol Drinking"
      ],
      "interventions": [
        {
          "name": "Alcohol",
          "type": "OTHER"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Texas at Austin",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "21 Years to 60 Years"
      },
      "enrollment_count": 200,
      "start_date": "2023-10-23",
      "completion_date": "2028-05-31",
      "has_results": false,
      "last_update_posted_date": "2026-04-15",
      "last_synced_at": "2026-10-28T10:18:04.475Z",
      "location_count": 1,
      "location_summary": "Austin, Texas",
      "locations": [
        {
          "city": "Austin",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06002633"
    },
    {
      "nct_id": "NCT01593709",
      "title": "Volunteer Screening for Vaccine and Antivirals Clinical Trials",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Normal Physiology"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)",
      "sponsor_class": "NIH",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 359,
      "start_date": "2012-11-27",
      "completion_date": "2021-07-21",
      "has_results": false,
      "last_update_posted_date": "2021-08-02",
      "last_synced_at": "2026-10-28T10:18:04.475Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01593709"
    },
    {
      "nct_id": "NCT05080647",
      "title": "Examining the Impacts of Parent Mightier Play",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Emotional Regulation"
      ],
      "interventions": [
        {
          "name": "Mightier online gameplay",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Neuromotion Labs",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "6 Years",
        "maximum_age": "12 Years",
        "sex": "ALL",
        "summary": "6 Years to 12 Years"
      },
      "enrollment_count": 41,
      "start_date": "2021-10-20",
      "completion_date": "2022-06-07",
      "has_results": false,
      "last_update_posted_date": "2022-06-09",
      "last_synced_at": "2026-10-28T10:18:04.475Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05080647"
    },
    {
      "nct_id": "NCT02785471",
      "title": "Assessing Online Interventions for Men's' Mental Health and Wellbeing",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Mental Health Wellness 1"
      ],
      "interventions": [
        {
          "name": "Screening for Mental Health only",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Screening for Mental Health & Man Therapy",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Maryland, Baltimore",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "25 Years",
        "maximum_age": "64 Years",
        "sex": "MALE",
        "summary": "25 Years to 64 Years · Male only"
      },
      "enrollment_count": 554,
      "start_date": "2016-09",
      "completion_date": "2020-08-31",
      "has_results": false,
      "last_update_posted_date": "2022-02-10",
      "last_synced_at": "2026-10-28T10:18:04.475Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02785471"
    },
    {
      "nct_id": "NCT01914978",
      "title": "Evaluating the Effectiveness of a Handbook for Parents of Children Newly Diagnosed With Food Allergy",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Hypersensitivity, Food"
      ],
      "interventions": [
        {
          "name": "Food allergy handbook for parents",
          "type": "OTHER"
        },
        {
          "name": "Food allergy treatment as usual",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Boston Children's Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 180,
      "start_date": "2013-07",
      "completion_date": "2014-11",
      "has_results": false,
      "last_update_posted_date": "2015-07-29",
      "last_synced_at": "2026-10-28T10:18:04.475Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01914978"
    },
    {
      "nct_id": "NCT03531021",
      "title": "Increasing Heart Healthy Behaviors in Youth With Type 1 Diabetes",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Type1diabetes",
        "Cardiovascular Risk Factor"
      ],
      "interventions": [
        {
          "name": "Heart healthy intervention",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Joslin Diabetes Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "14 Years",
        "maximum_age": "19 Years",
        "sex": "ALL",
        "summary": "14 Years to 19 Years"
      },
      "enrollment_count": 45,
      "start_date": "2018-05-03",
      "completion_date": "2019-02-08",
      "has_results": false,
      "last_update_posted_date": "2021-08-10",
      "last_synced_at": "2026-10-28T10:18:04.475Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03531021"
    },
    {
      "nct_id": "NCT04575155",
      "title": "Development & Pilot of the Technology-Enabled Alliance for Medication Therapy Management",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Polypharmacy"
      ],
      "interventions": [
        {
          "name": "TEAM Strategy",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Northwestern University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "50 Years and older"
      },
      "enrollment_count": 119,
      "start_date": "2020-10-23",
      "completion_date": "2022-10-31",
      "has_results": true,
      "last_update_posted_date": "2024-11-26",
      "last_synced_at": "2026-10-28T10:18:04.475Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04575155"
    },
    {
      "nct_id": "NCT03095534",
      "title": "Translating 3-Step Workout for Life in a Local Senior Living Community",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Frail Elderly",
        "Muscle Weakness"
      ],
      "interventions": [
        {
          "name": "3-Step Workout for Life",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Indiana 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": 17,
      "start_date": "2017-03-01",
      "completion_date": "2018-04-11",
      "has_results": false,
      "last_update_posted_date": "2018-04-17",
      "last_synced_at": "2026-10-28T10:18:04.475Z",
      "location_count": 1,
      "location_summary": "Indianapolis, Indiana",
      "locations": [
        {
          "city": "Indianapolis",
          "state": "Indiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03095534"
    },
    {
      "nct_id": "NCT04532164",
      "title": "Study to Find Out if Cream V61-044 Used to Treat Fungal Infections Causes an Allergic Skin Reaction to Sunlight in Healthy Participants",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Dermatitis, Photoallergic"
      ],
      "interventions": [
        {
          "name": "Butenafine HCl 1% (BAY1896425) - Induction Phase",
          "type": "DRUG"
        },
        {
          "name": "Butenafine HCl 1% (BAY1896425) - Challenge Phase",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Bayer",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "18 Years to 60 Years"
      },
      "enrollment_count": 137,
      "start_date": "2013-06-10",
      "completion_date": "2013-11-11",
      "has_results": true,
      "last_update_posted_date": "2020-11-16",
      "last_synced_at": "2026-10-28T10:18:04.475Z",
      "location_count": 1,
      "location_summary": "Fairfield, New Jersey",
      "locations": [
        {
          "city": "Fairfield",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04532164"
    },
    {
      "nct_id": "NCT01441167",
      "title": "Experimental PfSPZ Vaccine in Adults Without Malaria",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Malaria",
        "Prevention and Control",
        "Acquired Immunity"
      ],
      "interventions": [
        {
          "name": "PfSPZ",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "45 Years",
        "sex": "ALL",
        "summary": "18 Years to 45 Years"
      },
      "enrollment_count": 64,
      "start_date": "2011-09-14",
      "completion_date": "2013-06-05",
      "has_results": false,
      "last_update_posted_date": "2018-07-05",
      "last_synced_at": "2026-10-28T10:18:04.475Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01441167"
    }
  ]
}