{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=High+intensity+interval+training+%28HIIT%29",
    "query": {
      "intervention": "High intensity interval training (HIIT)"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 102,
    "total_pages": 11,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=High+intensity+interval+training+%28HIIT%29&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-29T10:04:52.411Z",
  "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": "NCT04733287",
      "title": "Heat Therapy and Muscle Function Study",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Exercise Intolerance",
        "Aging",
        "Heat Therapy",
        "High Intensity Interval Training"
      ],
      "interventions": [
        {
          "name": "High Intensity Interval Training of the Knee Extensors",
          "type": "OTHER"
        },
        {
          "name": "Muscle Heat Therapy",
          "type": "OTHER"
        },
        {
          "name": "Muscle Disuse",
          "type": "OTHER"
        },
        {
          "name": "Sham Heat Therapy",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Brigham Young University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "95 Years",
        "sex": "ALL",
        "summary": "18 Years to 95 Years"
      },
      "enrollment_count": 148,
      "start_date": "2021-04-01",
      "completion_date": "2024-12-31",
      "has_results": false,
      "last_update_posted_date": "2021-02-02",
      "last_synced_at": "2026-09-29T10:04:52.411Z",
      "location_count": 1,
      "location_summary": "Provo, Utah",
      "locations": [
        {
          "city": "Provo",
          "state": "Utah"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04733287"
    },
    {
      "nct_id": "NCT03819426",
      "title": "Walking or High Intensity Exercise for Anxiety",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Generalized Anxiety Disorder",
        "Panic Disorder",
        "Social Anxiety"
      ],
      "interventions": [
        {
          "name": "Low Intensity Exercise Intervention",
          "type": "BEHAVIORAL"
        },
        {
          "name": "High Intensity Intervention",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "NYU Langone Health",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 9,
      "start_date": "2018-12-11",
      "completion_date": "2020-07-29",
      "has_results": false,
      "last_update_posted_date": "2020-09-28",
      "last_synced_at": "2026-09-29T10:04:52.411Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03819426"
    },
    {
      "nct_id": "NCT07222345",
      "title": "Feasibility of High Intensity Interval Training in Survivors of Childhood, Adolescent, and Young Adult Hodgkin Lymphoma",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Hodgkin Lymphoma"
      ],
      "interventions": [
        {
          "name": "High Intensity Interval Training (HIIT)",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "St. Jude Children's Research Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "10 Years",
        "maximum_age": "25 Years",
        "sex": "ALL",
        "summary": "10 Years to 25 Years"
      },
      "enrollment_count": 20,
      "start_date": "2026-06-08",
      "completion_date": "2029-01",
      "has_results": false,
      "last_update_posted_date": "2026-06-10",
      "last_synced_at": "2026-09-29T10:04:52.411Z",
      "location_count": 1,
      "location_summary": "Memphis, Tennessee",
      "locations": [
        {
          "city": "Memphis",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07222345"
    },
    {
      "nct_id": "NCT05131217",
      "title": "Effects of Acute Exercise Intensity on Cerebral Blood Flow and Cognitive Function in Older Adults",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Aging Well"
      ],
      "interventions": [
        {
          "name": "Acute bout of Continuous Moderate Intensity Exercise",
          "type": "OTHER"
        },
        {
          "name": "Acute bout of High Intensity Interval Training",
          "type": "OTHER"
        },
        {
          "name": "Control",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Virginia",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "65 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "65 Years and older"
      },
      "enrollment_count": 13,
      "start_date": "2022-01-14",
      "completion_date": "2023-05-01",
      "has_results": false,
      "last_update_posted_date": "2023-11-29",
      "last_synced_at": "2026-09-29T10:04:52.411Z",
      "location_count": 1,
      "location_summary": "Charlottesville, Virginia",
      "locations": [
        {
          "city": "Charlottesville",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05131217"
    },
    {
      "nct_id": "NCT03212300",
      "title": "TSA Exercise Prehabilitation in Older Adults",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Postoperative Delirium and Delayed Functional Recovery"
      ],
      "interventions": [
        {
          "name": "Aerobic Exercise Training (AET)",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of California, San Francisco",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "55 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "55 Years to 75 Years"
      },
      "enrollment_count": 3,
      "start_date": "2018-09-28",
      "completion_date": "2020-08-12",
      "has_results": false,
      "last_update_posted_date": "2020-08-14",
      "last_synced_at": "2026-09-29T10:04:52.411Z",
      "location_count": 1,
      "location_summary": "San Francisco, California",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03212300"
    },
    {
      "nct_id": "NCT05097352",
      "title": "Effects of a Short-term Exercise Intervention on Sleep in Women Exposed to Trauma: A Randomized Controlled Trial",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Traumatic Stress Disorder",
        "Post Traumatic Stress Disorder",
        "Trauma and Stressor Related Disorders",
        "Mental Disorders",
        "Exercise"
      ],
      "interventions": [
        {
          "name": "High Intensity Interval Training (HIIT)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Waitlist",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "OTHER"
      ],
      "sponsor": "University of Georgia",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "39 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 39 Years · Female only"
      },
      "enrollment_count": 41,
      "start_date": "2022-01-24",
      "completion_date": "2023-03-31",
      "has_results": false,
      "last_update_posted_date": "2023-04-18",
      "last_synced_at": "2026-09-29T10:04:52.411Z",
      "location_count": 1,
      "location_summary": "Athens, Georgia",
      "locations": [
        {
          "city": "Athens",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05097352"
    },
    {
      "nct_id": "NCT03479177",
      "title": "Home-Based High Intensity Interval Training Intervention for Low Active Adults",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cardiovascular Diseases"
      ],
      "interventions": [
        {
          "name": "High Intensity Interval Training",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Minnesota",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 50,
      "start_date": "2018-07-01",
      "completion_date": "2019-09-01",
      "has_results": false,
      "last_update_posted_date": "2019-10-09",
      "last_synced_at": "2026-09-29T10:04:52.411Z",
      "location_count": 1,
      "location_summary": "Minneapolis, Minnesota",
      "locations": [
        {
          "city": "Minneapolis",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03479177"
    },
    {
      "nct_id": "NCT06199661",
      "title": "High-Intensity Exercise in Older Adults",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Functional Fitness",
        "Cognitive Abilities"
      ],
      "interventions": [
        {
          "name": "APEX",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of California, Berkeley",
      "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": 4,
      "start_date": "2023-03-06",
      "completion_date": "2023-06-01",
      "has_results": false,
      "last_update_posted_date": "2024-01-10",
      "last_synced_at": "2026-09-29T10:04:52.411Z",
      "location_count": 1,
      "location_summary": "San Francisco, California",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06199661"
    },
    {
      "nct_id": "NCT07518888",
      "title": "Exercise-induced Steroid Changes in Active Surveillance for Prostate Cancer",
      "overall_status": "NOT_YET_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Prostate Cancer"
      ],
      "interventions": [
        {
          "name": "High-Intensity Interval Training (HIIT) Exercise",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Miami",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "MALE",
        "summary": "18 Years to 80 Years · Male only"
      },
      "enrollment_count": 49,
      "start_date": "2026-10",
      "completion_date": "2028-08",
      "has_results": false,
      "last_update_posted_date": "2026-09-21",
      "last_synced_at": "2026-09-29T10:04:52.411Z",
      "location_count": 1,
      "location_summary": "Miami, Florida",
      "locations": [
        {
          "city": "Miami",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07518888"
    },
    {
      "nct_id": "NCT01606696",
      "title": "Higher Intensity Interval Training in Cardiac Rehabilitation",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "CAD"
      ],
      "interventions": [
        {
          "name": "HIIT",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Standard intensity non-interval training",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Henry Ford Health System",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "18 Years to 75 Years"
      },
      "enrollment_count": 49,
      "start_date": "2011-08",
      "completion_date": "2014-01",
      "has_results": false,
      "last_update_posted_date": "2015-07-16",
      "last_synced_at": "2026-09-29T10:04:52.411Z",
      "location_count": 1,
      "location_summary": "Detroit, Michigan",
      "locations": [
        {
          "city": "Detroit",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01606696"
    }
  ]
}