{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=High+Intensity+Interval+Training",
    "query": {
      "condition": "High Intensity Interval Training"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 98,
    "total_pages": 10,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=High+Intensity+Interval+Training&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-06-26T16:05:44.516Z",
  "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": "NCT02528344",
      "title": "High Intensity Interval Training and Rheumatoid Arthritis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Rheumatoid Arthritis"
      ],
      "interventions": [
        {
          "name": "HIIT",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Duke University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "60 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "60 Years to 80 Years"
      },
      "enrollment_count": 12,
      "start_date": "2015-09",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2016-12-08",
      "last_synced_at": "2026-06-26T16:05:44.516Z",
      "location_count": 1,
      "location_summary": "Durham, North Carolina",
      "locations": [
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02528344"
    },
    {
      "nct_id": "NCT04103593",
      "title": "Functional Interval Training for Veterans Exercising Through Telehealth.",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "HIV Infection"
      ],
      "interventions": [
        {
          "name": "exercise training",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "VA Office of Research and Development",
      "sponsor_class": "FED",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "50 Years and older"
      },
      "enrollment_count": 89,
      "start_date": "2020-03-10",
      "completion_date": "2024-09-27",
      "has_results": true,
      "last_update_posted_date": "2026-05-22",
      "last_synced_at": "2026-06-26T16:05:44.516Z",
      "location_count": 3,
      "location_summary": "Decatur, Georgia • Baltimore, Maryland • Salem, Virginia",
      "locations": [
        {
          "city": "Decatur",
          "state": "Georgia"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "Salem",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04103593"
    },
    {
      "nct_id": "NCT05849168",
      "title": "High-Intensity Interval Training to Improve Symptoms of Deployment-Related Respiratory Disease",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Occupational Exposure"
      ],
      "interventions": [
        {
          "name": "Exercise training",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Colorado, Denver",
      "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": 12,
      "start_date": "2023-11-27",
      "completion_date": "2024-07-31",
      "has_results": true,
      "last_update_posted_date": "2026-01-29",
      "last_synced_at": "2026-06-26T16:05:44.516Z",
      "location_count": 2,
      "location_summary": "Aurora, Colorado",
      "locations": [
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05849168"
    },
    {
      "nct_id": "NCT05218083",
      "title": "REmotely Monitored, Mobile Health Supported Multidomain Rehabilitation Program With High Intensity Interval Training for COVID-19",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "COVID-19",
        "Critical Illness",
        "ICU Acquired Weakness",
        "PICS",
        "Cardiorespiratory Fitness"
      ],
      "interventions": [
        {
          "name": "REmotely monitored, Mobile health supported Multidomain Rehabilitation Program with High Intensity Interval Training (REMM-HIIT)",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Duke University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 120,
      "start_date": "2023-02-23",
      "completion_date": "2027-04-01",
      "has_results": false,
      "last_update_posted_date": "2026-05-28",
      "last_synced_at": "2026-06-26T16:05:44.516Z",
      "location_count": 5,
      "location_summary": "Birmingham, Alabama • Lexington, Kentucky • Durham, North Carolina + 2 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Lexington",
          "state": "Kentucky"
        },
        {
          "city": "Durham",
          "state": "North Carolina"
        },
        {
          "city": "Columbus",
          "state": "Ohio"
        },
        {
          "city": "Nashville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05218083"
    },
    {
      "nct_id": "NCT02356900",
      "title": "Hyperbaric VO2max Study",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Exercise Training"
      ],
      "interventions": [
        {
          "name": "Hyperoxic hyperbaric interval exercise training",
          "type": "PROCEDURE"
        },
        {
          "name": "Normoxic, normobaric, interval exercise training",
          "type": "PROCEDURE"
        },
        {
          "name": "Oxygen",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DRUG"
      ],
      "sponsor": "Duke University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "35 Years",
        "sex": "ALL",
        "summary": "18 Years to 35 Years"
      },
      "enrollment_count": 25,
      "start_date": "2015-02",
      "completion_date": "2016-05",
      "has_results": true,
      "last_update_posted_date": "2017-05-17",
      "last_synced_at": "2026-06-26T16:05:44.516Z",
      "location_count": 1,
      "location_summary": "Durham, North Carolina",
      "locations": [
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02356900"
    },
    {
      "nct_id": "NCT05137990",
      "title": "The HIIT Cognition Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "High Intensity Interval Training",
        "Overweight and Obesity",
        "Metabolic Disease",
        "Cognition"
      ],
      "interventions": [
        {
          "name": "HIIT Exercise Intervention",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Stretching Intervention",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Southern California",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": "16 Years",
        "sex": "ALL",
        "summary": "12 Years to 16 Years"
      },
      "enrollment_count": 6,
      "start_date": "2021-03-01",
      "completion_date": "2023-09-30",
      "has_results": false,
      "last_update_posted_date": "2024-05-07",
      "last_synced_at": "2026-06-26T16:05:44.516Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05137990"
    },
    {
      "nct_id": "NCT06243016",
      "title": "Breaking Sitting with High-intensity Interval Training for Brain Health",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Aging"
      ],
      "interventions": [
        {
          "name": "High-Intensity Interval Training (HIIT) Breaks to Sitting",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Light-Intensity Interval Training (LIIT) Breaks to Sitting",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Illinois at Urbana-Champaign",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "40 Years to 75 Years"
      },
      "enrollment_count": 54,
      "start_date": "2024-05-07",
      "completion_date": "2025-07-31",
      "has_results": false,
      "last_update_posted_date": "2025-02-07",
      "last_synced_at": "2026-06-26T16:05:44.516Z",
      "location_count": 1,
      "location_summary": "Urbana, Illinois",
      "locations": [
        {
          "city": "Urbana",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06243016"
    },
    {
      "nct_id": "NCT05542758",
      "title": "High-Intensity Interval Training for Older Adults",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Age-Related Sarcopenia"
      ],
      "interventions": [
        {
          "name": "Total Body HIIT Program",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Creighton University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "65 Years",
        "maximum_age": "95 Years",
        "sex": "ALL",
        "summary": "65 Years to 95 Years"
      },
      "enrollment_count": 60,
      "start_date": "2023-03-01",
      "completion_date": "2024-12",
      "has_results": false,
      "last_update_posted_date": "2024-07-16",
      "last_synced_at": "2026-06-26T16:05:44.516Z",
      "location_count": 1,
      "location_summary": "Omaha, Nebraska",
      "locations": [
        {
          "city": "Omaha",
          "state": "Nebraska"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05542758"
    },
    {
      "nct_id": "NCT06268041",
      "title": "HIT-Stroke Trial 2",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Stroke"
      ],
      "interventions": [
        {
          "name": "Moderate-Intensity Aerobic Training",
          "type": "BEHAVIORAL"
        },
        {
          "name": "High-Intensity Interval Training",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Cincinnati",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "30 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "30 Years to 85 Years"
      },
      "enrollment_count": 156,
      "start_date": "2024-02-09",
      "completion_date": "2028-04",
      "has_results": false,
      "last_update_posted_date": "2026-05-01",
      "last_synced_at": "2026-06-26T16:05:44.516Z",
      "location_count": 3,
      "location_summary": "Newark, Delaware • Kansas City, Kansas • Cincinnati, Ohio",
      "locations": [
        {
          "city": "Newark",
          "state": "Delaware"
        },
        {
          "city": "Kansas City",
          "state": "Kansas"
        },
        {
          "city": "Cincinnati",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06268041"
    },
    {
      "nct_id": "NCT05573087",
      "title": "Comparing Land-based and Aquatic Reduced Exertion High Intensity Interval Training in Sedentary Young Adults",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Physical Performance"
      ],
      "interventions": [
        {
          "name": "Aquatic Based Exercise",
          "type": "OTHER"
        },
        {
          "name": "Land Based Exercise",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "West Virginia University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "30 Years",
        "sex": "ALL",
        "summary": "18 Years to 30 Years"
      },
      "enrollment_count": 32,
      "start_date": "2021-01-19",
      "completion_date": "2021-12-31",
      "has_results": false,
      "last_update_posted_date": "2022-10-10",
      "last_synced_at": "2026-06-26T16:05:44.516Z",
      "location_count": 1,
      "location_summary": "Morgantown, West Virginia",
      "locations": [
        {
          "city": "Morgantown",
          "state": "West Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05573087"
    }
  ]
}