{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Acute+Placebo+Supplementation",
    "query": {
      "intervention": "Acute Placebo Supplementation"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 59,
    "total_pages": 6,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Acute+Placebo+Supplementation&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-17T22:39:54.319Z",
  "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": "NCT02460211",
      "title": "Acute Effect of Systemic Stress on Measured Blood Concentrations of 25 (OH) Vitamin D",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cardiovascular Disease",
        "Vitamin D Deficiency"
      ],
      "interventions": [
        {
          "name": "Vitamin D3",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Intermountain Health Care, Inc.",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 150,
      "start_date": "2015-07",
      "completion_date": "2020-10-01",
      "has_results": false,
      "last_update_posted_date": "2021-04-05",
      "last_synced_at": "2026-09-17T22:39:54.319Z",
      "location_count": 1,
      "location_summary": "Murray, Utah",
      "locations": [
        {
          "city": "Murray",
          "state": "Utah"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02460211"
    },
    {
      "nct_id": "NCT02442245",
      "title": "The Effect of XSurge Supplementation on Biomarkers and Performance From High Intensity Resistance Exercise",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Exercise Performance Recovery"
      ],
      "interventions": [
        {
          "name": "XSurge",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo: Microcrystalline Cellulose",
          "type": "OTHER"
        },
        {
          "name": "Control: No supplementation",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "OTHER"
      ],
      "sponsor": "Kemin Foods LC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "35 Years",
        "sex": "MALE",
        "summary": "18 Years to 35 Years · Male only"
      },
      "enrollment_count": 41,
      "start_date": "2015-02",
      "completion_date": "2016-08",
      "has_results": false,
      "last_update_posted_date": "2018-01-31",
      "last_synced_at": "2026-09-17T22:39:54.319Z",
      "location_count": 1,
      "location_summary": "Orlando, Florida",
      "locations": [
        {
          "city": "Orlando",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02442245"
    },
    {
      "nct_id": "NCT04364074",
      "title": "Acute Probiotic Supplementation and Endothelial Function",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Coronary Artery Disease",
        "Hypertension",
        "Hyperlipidemias",
        "Peripheral Vascular Diseases",
        "Cerebral Arterial Diseases"
      ],
      "interventions": [
        {
          "name": "Goodbelly",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Medical College of Wisconsin",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "89 Years",
        "sex": "ALL",
        "summary": "21 Years to 89 Years"
      },
      "enrollment_count": 26,
      "start_date": "2020-08-17",
      "completion_date": "2023-08-03",
      "has_results": false,
      "last_update_posted_date": "2023-08-22",
      "last_synced_at": "2026-09-17T22:39:54.319Z",
      "location_count": 1,
      "location_summary": "Wauwatosa, Wisconsin",
      "locations": [
        {
          "city": "Wauwatosa",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04364074"
    },
    {
      "nct_id": "NCT05221905",
      "title": "Effects of Inorganic Nitrate and Intensity of Exercise on Cardiovascular Health in Post-Menopausal Females",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Vascular Dilation",
        "Arterial Stiffness"
      ],
      "interventions": [
        {
          "name": "BEET IT - Concentrate Beet root juice",
          "type": "DRUG"
        },
        {
          "name": "BEET IT - Concentrate Beet root juice (nitrate depleted)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Virginia",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "45 Years",
        "maximum_age": "75 Years",
        "sex": "FEMALE",
        "summary": "45 Years to 75 Years · Female only"
      },
      "enrollment_count": 24,
      "start_date": "2021-11-01",
      "completion_date": "2023-04-01",
      "has_results": false,
      "last_update_posted_date": "2023-11-30",
      "last_synced_at": "2026-09-17T22:39:54.319Z",
      "location_count": 1,
      "location_summary": "Charlottesville, Virginia",
      "locations": [
        {
          "city": "Charlottesville",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05221905"
    },
    {
      "nct_id": "NCT03930563",
      "title": "Inorganic Nitrate and OSA",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Obstructive Sleep Apnea"
      ],
      "interventions": [
        {
          "name": "Pre-beetroot juice supplementation",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Post-beetroot juice supplementation",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "University of Iowa",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "30 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "30 Years to 70 Years"
      },
      "enrollment_count": 21,
      "start_date": "2019-06-12",
      "completion_date": "2020-03-06",
      "has_results": false,
      "last_update_posted_date": "2021-04-27",
      "last_synced_at": "2026-09-17T22:39:54.319Z",
      "location_count": 1,
      "location_summary": "Iowa City, Iowa",
      "locations": [
        {
          "city": "Iowa City",
          "state": "Iowa"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03930563"
    },
    {
      "nct_id": "NCT07109115",
      "title": "The Effects of Vitamin C on Acute-Exercise in Postmenopausal Females",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Females",
        "Males",
        "Menopause",
        "Sedentary",
        "Healthy Participants"
      ],
      "interventions": [
        {
          "name": "Vitamin C (Ascorbic Acid)",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "University of Virginia",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "45 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "45 Years and older"
      },
      "enrollment_count": 1,
      "start_date": "2025-09-01",
      "completion_date": "2026-07-01",
      "has_results": false,
      "last_update_posted_date": "2026-07-17",
      "last_synced_at": "2026-09-17T22:39:54.319Z",
      "location_count": 1,
      "location_summary": "Charlottesville, Virginia",
      "locations": [
        {
          "city": "Charlottesville",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07109115"
    },
    {
      "nct_id": "NCT02630667",
      "title": "The Acute Effects Fortified Nutritional Supplementation on Childhood Cognition",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cognitive Ability, General",
        "Dietary Modification"
      ],
      "interventions": [
        {
          "name": "SLOW Carbohydrate",
          "type": "OTHER"
        },
        {
          "name": "MEDIUM Carbohydrate",
          "type": "OTHER"
        },
        {
          "name": "FAST Carbohydrate",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Illinois at Urbana-Champaign",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "9 Years",
        "maximum_age": "10 Years",
        "sex": "ALL",
        "summary": "9 Years to 10 Years"
      },
      "enrollment_count": 113,
      "start_date": "2012-06",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2016-12-08",
      "last_synced_at": "2026-09-17T22:39:54.319Z",
      "location_count": 1,
      "location_summary": "Urbana, Illinois",
      "locations": [
        {
          "city": "Urbana",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02630667"
    },
    {
      "nct_id": "NCT05524532",
      "title": "Effects of Immulina TM Supplements With PASC Patients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Post Acute COVID-19 Syndrome"
      ],
      "interventions": [
        {
          "name": "Immulina TM",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "University of Mississippi Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "99 Years",
        "sex": "ALL",
        "summary": "18 Years to 99 Years"
      },
      "enrollment_count": 101,
      "start_date": "2023-07-20",
      "completion_date": "2025-07-29",
      "has_results": false,
      "last_update_posted_date": "2026-07-31",
      "last_synced_at": "2026-09-17T22:39:54.319Z",
      "location_count": 8,
      "location_summary": "Honolulu, Hawaii • Baton Rouge, Louisiana • New Orleans, Louisiana + 5 more",
      "locations": [
        {
          "city": "Honolulu",
          "state": "Hawaii"
        },
        {
          "city": "Baton Rouge",
          "state": "Louisiana"
        },
        {
          "city": "New Orleans",
          "state": "Louisiana"
        },
        {
          "city": "Portland",
          "state": "Maine"
        },
        {
          "city": "Jackson",
          "state": "Mississippi"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05524532"
    },
    {
      "nct_id": "NCT03909789",
      "title": "Effect of Inorganic Nitrate Supplement on Blood Pressure",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Blood Pressure",
        "Endothelial Dysfunction"
      ],
      "interventions": [
        {
          "name": "Plant based bioequivalent Nitrate supplementation",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center",
      "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": 67,
      "start_date": "2017-11-17",
      "completion_date": "2018-06-22",
      "has_results": false,
      "last_update_posted_date": "2019-04-12",
      "last_synced_at": "2026-09-17T22:39:54.319Z",
      "location_count": 1,
      "location_summary": "Torrance, California",
      "locations": [
        {
          "city": "Torrance",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03909789"
    },
    {
      "nct_id": "NCT07137988",
      "title": "Effect of Acute Grape Seed Extract Supplementation on the Heart Rate Recovery in Young Individuals",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Healthy Young Men"
      ],
      "interventions": [
        {
          "name": "600 mg grape seed extract",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "600 mg Starch",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "California Baptist University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "30 Years",
        "sex": "MALE",
        "summary": "18 Years to 30 Years · Male only"
      },
      "enrollment_count": 12,
      "start_date": "2024-10-03",
      "completion_date": "2024-12-31",
      "has_results": false,
      "last_update_posted_date": "2025-08-22",
      "last_synced_at": "2026-09-17T22:39:54.319Z",
      "location_count": 1,
      "location_summary": "Riverside, California",
      "locations": [
        {
          "city": "Riverside",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07137988"
    }
  ]
}