{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Substrate+Metabolism+During+Exercise",
    "query": {
      "condition": "Substrate Metabolism During Exercise"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 4,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-07-22T20:09:06.621Z",
  "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": "NCT04819308",
      "title": "Differences in Nutrient Use During Exercise Between Children of Varying Body Mass Indices and Fitness Levels",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Obesity"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Arkansas Children's Hospital Research Institute",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "8 Years",
        "maximum_age": "11 Years",
        "sex": "ALL",
        "summary": "8 Years to 11 Years"
      },
      "enrollment_count": 95,
      "start_date": "2021-03-18",
      "completion_date": "2025-12",
      "has_results": false,
      "last_update_posted_date": "2025-02-25",
      "last_synced_at": "2026-07-22T20:09:06.621Z",
      "location_count": 1,
      "location_summary": "Little Rock, Arkansas",
      "locations": [
        {
          "city": "Little Rock",
          "state": "Arkansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04819308"
    },
    {
      "nct_id": "NCT07298863",
      "title": "The Effect of Hydration Status on Substrate Oxidation at Rest and During Light and Moderate Exercise",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Hydration Status",
        "Substrate Metabolism During Exercise"
      ],
      "interventions": [
        {
          "name": "Exercise Trial",
          "type": "OTHER"
        },
        {
          "name": "Experimental Trial",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "PepsiCo Global R&D",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "35 Years",
        "sex": "ALL",
        "summary": "18 Years to 35 Years"
      },
      "enrollment_count": 74,
      "start_date": "2025-11-05",
      "completion_date": "2026-04-30",
      "has_results": false,
      "last_update_posted_date": "2026-03-03",
      "last_synced_at": "2026-07-22T20:09:06.621Z",
      "location_count": 1,
      "location_summary": "Valhalla, New York",
      "locations": [
        {
          "city": "Valhalla",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07298863"
    },
    {
      "nct_id": "NCT04539054",
      "title": "Pre-workout Supplement Versus Caffeine on Energy Expenditure.",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Healthy"
      ],
      "interventions": [
        {
          "name": "ENGN Shred",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Nutricost caffeine powder",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Crystal Light",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Northern Illinois University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "19 Years",
        "maximum_age": "29 Years",
        "sex": "MALE",
        "summary": "19 Years to 29 Years · Male only"
      },
      "enrollment_count": 12,
      "start_date": "2019-09-01",
      "completion_date": "2019-12-31",
      "has_results": false,
      "last_update_posted_date": "2020-09-04",
      "last_synced_at": "2026-07-22T20:09:06.621Z",
      "location_count": 1,
      "location_summary": "DeKalb, Illinois",
      "locations": [
        {
          "city": "DeKalb",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04539054"
    },
    {
      "nct_id": "NCT06242015",
      "title": "Ordered Eating and Acute Exercise",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Glucose Metabolism Disorders",
        "Hunger"
      ],
      "interventions": [
        {
          "name": "Carbohydrate-first meal",
          "type": "OTHER"
        },
        {
          "name": "Carbohydrate-last meal",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Old Dominion University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "18 Years to 60 Years"
      },
      "enrollment_count": 23,
      "start_date": "2024-02-06",
      "completion_date": "2024-07-30",
      "has_results": false,
      "last_update_posted_date": "2025-08-01",
      "last_synced_at": "2026-07-22T20:09:06.621Z",
      "location_count": 1,
      "location_summary": "Norfolk, Virginia",
      "locations": [
        {
          "city": "Norfolk",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06242015"
    }
  ]
}