{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Cardio+Respiratory+Fitness",
    "query": {
      "condition": "Cardio Respiratory Fitness"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 3,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-28T13:15:46.213Z",
  "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": "NCT07727577",
      "title": "Cardiorespiratory Fitness and Acute High-Intensity Exercise Effects on Brain and Cognitive Function in Older Adults",
      "overall_status": "NOT_YET_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Healthy Aging",
        "Cognitive Benefits",
        "Cardio Respiratory Fitness",
        "Brain Activity"
      ],
      "interventions": [
        {
          "name": "High-Intensity Interval Training",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Colby-Sawyer College",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "55 Years",
        "maximum_age": "79 Years",
        "sex": "ALL",
        "summary": "55 Years to 79 Years"
      },
      "enrollment_count": 50,
      "start_date": "2026-09-01",
      "completion_date": "2028-08-01",
      "has_results": false,
      "last_update_posted_date": "2026-08-12",
      "last_synced_at": "2026-09-28T13:15:46.213Z",
      "location_count": 1,
      "location_summary": "New London, New Hampshire",
      "locations": [
        {
          "city": "New London",
          "state": "New Hampshire"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07727577"
    },
    {
      "nct_id": "NCT06853236",
      "title": "Functional Incremental Stepping in Place Test (F-IST) Validation",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Intensive Care Medicine",
        "Acute Care Medical"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Kirby Mayer",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 60,
      "start_date": "2024-07-02",
      "completion_date": "2027-02-27",
      "has_results": false,
      "last_update_posted_date": "2026-09-15",
      "last_synced_at": "2026-09-28T13:15:46.213Z",
      "location_count": 2,
      "location_summary": "Boca Raton, Florida • Durham, North Carolina",
      "locations": [
        {
          "city": "Boca Raton",
          "state": "Florida"
        },
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06853236"
    },
    {
      "nct_id": "NCT03397940",
      "title": "Role of Structured Days on Weight Gain",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Body Weight",
        "Cardio-respiratory Fitness",
        "Sleep",
        "Nutrition Poor",
        "Physical Activity",
        "Screen Time"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "University of South Carolina",
      "sponsor_class": "OTHER",
      "healthy_volunteers": null,
      "eligibility": {
        "minimum_age": "5 Years",
        "maximum_age": "9 Years",
        "sex": "ALL",
        "summary": "5 Years to 9 Years"
      },
      "enrollment_count": 2279,
      "start_date": "2018-03-01",
      "completion_date": "2021-10-01",
      "has_results": false,
      "last_update_posted_date": "2022-05-05",
      "last_synced_at": "2026-09-28T13:15:46.213Z",
      "location_count": 1,
      "location_summary": "Columbia, South Carolina",
      "locations": [
        {
          "city": "Columbia",
          "state": "South Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03397940"
    }
  ]
}