{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=High+intensity+interval+training+%28HIIT%29&page=2",
    "query": {
      "intervention": "High intensity interval training (HIIT)",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "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=3&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=High+intensity+interval+training+%28HIIT%29&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-09T08:33:49.735Z",
  "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": "NCT04416243",
      "title": "Feasibility of a High-intensity Interval Training Program in Persons With Multiple Sclerosis Who Have Walking Disability",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Multiple Sclerosis"
      ],
      "interventions": [
        {
          "name": "Recumbent Stepping, High-Intensity Interval Training",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of North Texas, Denton, TX",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 17,
      "start_date": "2019-12-19",
      "completion_date": "2022-12-14",
      "has_results": false,
      "last_update_posted_date": "2023-04-19",
      "last_synced_at": "2026-10-09T08:33:49.735Z",
      "location_count": 1,
      "location_summary": "Denton, Texas",
      "locations": [
        {
          "city": "Denton",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04416243"
    },
    {
      "nct_id": "NCT04293367",
      "title": "Fuel Utilization, Diet Composition, and Exercise in African American Women",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Obesity",
        "Diabetes",
        "Insulin Resistance"
      ],
      "interventions": [
        {
          "name": "High Intensity Interval Training (HIIT)",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Icahn School of Medicine at Mount Sinai",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "20 Years",
        "maximum_age": "40 Years",
        "sex": "FEMALE",
        "summary": "20 Years to 40 Years · Female only"
      },
      "enrollment_count": 28,
      "start_date": "2009-06-01",
      "completion_date": "2013-11-20",
      "has_results": false,
      "last_update_posted_date": "2020-03-03",
      "last_synced_at": "2026-10-09T08:33:49.735Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04293367"
    },
    {
      "nct_id": "NCT07716462",
      "title": "Home-Based High-Intensity Interval Training in Systemic Lupus Erythematosus",
      "overall_status": "NOT_YET_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Systemic Lupus Erthematosus",
        "Fatigue",
        "Exercise Training"
      ],
      "interventions": [
        {
          "name": "Personalized Home-Based High-Intensity Interval Training",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Alabama at Birmingham",
      "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": 20,
      "start_date": "2026-10-01",
      "completion_date": "2027-12",
      "has_results": false,
      "last_update_posted_date": "2026-07-21",
      "last_synced_at": "2026-10-09T08:33:49.735Z",
      "location_count": 1,
      "location_summary": "Birmingham, Alabama",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07716462"
    },
    {
      "nct_id": "NCT03727893",
      "title": "Exercise Training and Manual Wheelchair Users With SCI",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Spinal Cord Injuries"
      ],
      "interventions": [
        {
          "name": "Roller-based Intervention Group (IG)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Control Group (CG)",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Washington University School of Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 14,
      "start_date": "2018-10-22",
      "completion_date": "2021-12-31",
      "has_results": false,
      "last_update_posted_date": "2022-02-23",
      "last_synced_at": "2026-10-09T08:33:49.735Z",
      "location_count": 1,
      "location_summary": "St Louis, Missouri",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03727893"
    },
    {
      "nct_id": "NCT07083219",
      "title": "Impact of Aerobic Exercise on Pain Modulation in Healthy Adults",
      "overall_status": "ENROLLING_BY_INVITATION",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Healthy Adult"
      ],
      "interventions": [
        {
          "name": "Aerobic High Intensity Interval Training",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Texas, El Paso",
      "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": 60,
      "start_date": "2025-08-15",
      "completion_date": "2026-12",
      "has_results": false,
      "last_update_posted_date": "2025-12-10",
      "last_synced_at": "2026-10-09T08:33:49.735Z",
      "location_count": 1,
      "location_summary": "El Paso, Texas",
      "locations": [
        {
          "city": "El Paso",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07083219"
    },
    {
      "nct_id": "NCT05513300",
      "title": "HIIT vs. MICT Training Study",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Lifestyle",
        "Sedentary"
      ],
      "interventions": [
        {
          "name": "Exercise intervention",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Stanford University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 135,
      "start_date": "2023-01-10",
      "completion_date": "2026-08",
      "has_results": false,
      "last_update_posted_date": "2025-11-28",
      "last_synced_at": "2026-10-09T08:33:49.735Z",
      "location_count": 1,
      "location_summary": "Stanford, California",
      "locations": [
        {
          "city": "Stanford",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05513300"
    },
    {
      "nct_id": "NCT06753253",
      "title": "Effects of Exercise Intensity on ADHD Symptoms",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Attention Deficit Disorder with Hyperactivity",
        "Attention Deficit Hyperactivity Disorder",
        "ADHD"
      ],
      "interventions": [
        {
          "name": "Cycling Exercise",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Kent State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "26 Years",
        "sex": "ALL",
        "summary": "18 Years to 26 Years"
      },
      "enrollment_count": 28,
      "start_date": "2024-08-06",
      "completion_date": "2024-11-25",
      "has_results": false,
      "last_update_posted_date": "2024-12-31",
      "last_synced_at": "2026-10-09T08:33:49.735Z",
      "location_count": 1,
      "location_summary": "Kent, Ohio",
      "locations": [
        {
          "city": "Kent",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06753253"
    },
    {
      "nct_id": "NCT05295719",
      "title": "Combining HIIT and n-3 PUFA to Reduce Inflammation and Improve Metabolic Health",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Obesity",
        "Inflammation",
        "Human Microbiome",
        "Insulin Resistance",
        "Dyslipidemias"
      ],
      "interventions": [
        {
          "name": "Omega-3 polyunsaturated fatty acid",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "High-Intensity Interval Training",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Safflower oil",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Low-intensity training",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "BEHAVIORAL"
      ],
      "sponsor": "Texas Tech University",
      "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": 129,
      "start_date": "2022-09-01",
      "completion_date": "2024-12-31",
      "has_results": false,
      "last_update_posted_date": "2025-09-11",
      "last_synced_at": "2026-10-09T08:33:49.735Z",
      "location_count": 1,
      "location_summary": "Lubbock, Texas",
      "locations": [
        {
          "city": "Lubbock",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05295719"
    },
    {
      "nct_id": "NCT05936008",
      "title": "Fitness After Stroke Trial",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Stroke",
        "Stroke, Ischemic",
        "Stroke Hemorrhagic"
      ],
      "interventions": [
        {
          "name": "Exercise MICT",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Exercise HIIT",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Kansas Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "20 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "20 Years to 85 Years"
      },
      "enrollment_count": 59,
      "start_date": "2023-07-03",
      "completion_date": "2025-12-08",
      "has_results": false,
      "last_update_posted_date": "2026-01-06",
      "last_synced_at": "2026-10-09T08:33:49.735Z",
      "location_count": 1,
      "location_summary": "Kansas City, Kansas",
      "locations": [
        {
          "city": "Kansas City",
          "state": "Kansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05936008"
    },
    {
      "nct_id": "NCT05913713",
      "title": "HIIT Following Breast Cancer Chemotherapy",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Breast Cancer"
      ],
      "interventions": [
        {
          "name": "12-week Intervention Period",
          "type": "BEHAVIORAL"
        },
        {
          "name": "12-week Observation Period",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Florida",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "85 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 85 Years · Female only"
      },
      "enrollment_count": 37,
      "start_date": "2024-03-07",
      "completion_date": "2026-05-20",
      "has_results": false,
      "last_update_posted_date": "2026-09-25",
      "last_synced_at": "2026-10-09T08:33:49.735Z",
      "location_count": 1,
      "location_summary": "Gainesville, Florida",
      "locations": [
        {
          "city": "Gainesville",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05913713"
    }
  ]
}