{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Multivitamin-Placebo",
    "query": {
      "intervention": "Multivitamin-Placebo"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 65,
    "total_pages": 7,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Multivitamin-Placebo&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-22T16:02:15.300Z",
  "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": "NCT00197756",
      "title": "Vitamins, Breastmilk HIV Shedding, and Child Health",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Maternal and Child Health Outcomes"
      ],
      "interventions": [
        {
          "name": "Vitamin A alone",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Multivitamins excluding vitamin A",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "multivitamins including vitamin A",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "OTHER"
      ],
      "sponsor": "Harvard School of Public Health (HSPH)",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 771,
      "start_date": "2004-09",
      "completion_date": "2007-08",
      "has_results": false,
      "last_update_posted_date": "2009-08-21",
      "last_synced_at": "2026-09-22T16:02:15.300Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00197756"
    },
    {
      "nct_id": "NCT04355767",
      "title": "Convalescent Plasma in Outpatients With COVID-19",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Covid19"
      ],
      "interventions": [
        {
          "name": "Convalescent Plasma",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Saline",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Stanford University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 511,
      "start_date": "2020-08-11",
      "completion_date": "2021-03-29",
      "has_results": true,
      "last_update_posted_date": "2021-10-19",
      "last_synced_at": "2026-09-22T16:02:15.300Z",
      "location_count": 53,
      "location_summary": "Chandler, Arizona • Phoenix, Arizona • La Jolla, California + 41 more",
      "locations": [
        {
          "city": "Chandler",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "La Jolla",
          "state": "California"
        },
        {
          "city": "Loma Linda",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04355767"
    },
    {
      "nct_id": "NCT02422745",
      "title": "COcoa Supplement and Multivitamin Outcomes Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Cardiovascular Disease",
        "Cancer"
      ],
      "interventions": [
        {
          "name": "Cocoa extract",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Multivitamin",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Cocoa extract placebo",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Multivitamin placebo",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Brigham and Women's Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "60 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "60 Years and older"
      },
      "enrollment_count": 21442,
      "start_date": "2015-06",
      "completion_date": "2023-06-05",
      "has_results": true,
      "last_update_posted_date": "2026-07-13",
      "last_synced_at": "2026-09-22T16:02:15.300Z",
      "location_count": 2,
      "location_summary": "Boston, Massachusetts • Seattle, Washington",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02422745"
    },
    {
      "nct_id": "NCT00065806",
      "title": "Atherosclerosis Prevention in Pediatric Lupus Erythematosus (APPLE)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Lupus Erythematosus, Systemic"
      ],
      "interventions": [
        {
          "name": "Atorvastatin",
          "type": "DRUG"
        },
        {
          "name": "Placebo atorvastatin",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Laura Schanberg",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "10 Years",
        "maximum_age": "21 Years",
        "sex": "ALL",
        "summary": "10 Years to 21 Years"
      },
      "enrollment_count": 221,
      "start_date": "2003-09",
      "completion_date": "2009-12",
      "has_results": true,
      "last_update_posted_date": "2013-08-15",
      "last_synced_at": "2026-09-22T16:02:15.300Z",
      "location_count": 1,
      "location_summary": "Durham, North Carolina",
      "locations": [
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00065806"
    },
    {
      "nct_id": "NCT00197704",
      "title": "Nutrition, Immunology and Epidemiology of Tuberculosis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Tuberculosis"
      ],
      "interventions": [
        {
          "name": "Multivitamins",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "OTHER"
      ],
      "sponsor": "Harvard School of Public Health (HSPH)",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 876,
      "start_date": "2000-03",
      "completion_date": "2004-05",
      "has_results": false,
      "last_update_posted_date": "2010-11-11",
      "last_synced_at": "2026-09-22T16:02:15.300Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00197704"
    },
    {
      "nct_id": "NCT01225198",
      "title": "Vitamin/Mineral Supplement for Children and Adults With Autism",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Autism"
      ],
      "interventions": [
        {
          "name": "Multi-Vitamin/Mineral Supplement",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Liquid Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "OTHER"
      ],
      "sponsor": "Arizona State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "3 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "3 Years to 60 Years"
      },
      "enrollment_count": 143,
      "start_date": "2008-05",
      "completion_date": "2009-02",
      "has_results": false,
      "last_update_posted_date": "2010-10-20",
      "last_synced_at": "2026-09-22T16:02:15.300Z",
      "location_count": 1,
      "location_summary": "Tempe, Arizona",
      "locations": [
        {
          "city": "Tempe",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01225198"
    },
    {
      "nct_id": "NCT00599456",
      "title": "Investigation of the Usefulness of Omega 3 Vitamins in the Relief of Hot Flashes in Menopausal Women.",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Hot Flashes",
        "Menopause"
      ],
      "interventions": [
        {
          "name": "Omega 3 fatty acid vitamins",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo capsules",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Christiana Care Health Services",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "65 Years",
        "sex": "FEMALE",
        "summary": "Up to 65 Years · Female only"
      },
      "enrollment_count": 100,
      "start_date": "2007-09",
      "completion_date": "2009-09",
      "has_results": false,
      "last_update_posted_date": "2017-05-10",
      "last_synced_at": "2026-09-22T16:02:15.300Z",
      "location_count": 1,
      "location_summary": "Newark, Delaware",
      "locations": [
        {
          "city": "Newark",
          "state": "Delaware"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00599456"
    },
    {
      "nct_id": "NCT00527306",
      "title": "Prevention of Recurrent Aphthous Stomatitis Using Vitamins",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Aphthous Stomatitis"
      ],
      "interventions": [
        {
          "name": "multivitamin",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "UConn Health",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 160,
      "start_date": "2005-12",
      "completion_date": "2009-07",
      "has_results": false,
      "last_update_posted_date": "2020-08-27",
      "last_synced_at": "2026-09-22T16:02:15.300Z",
      "location_count": 1,
      "location_summary": "Farmington, Connecticut",
      "locations": [
        {
          "city": "Farmington",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00527306"
    },
    {
      "nct_id": "NCT05278533",
      "title": "Evaluate the Use of the Foundation Pain Index and the Nutritional Supplement BioPlete™ in Adults With Chronic Pain",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Chronic Pain"
      ],
      "interventions": [
        {
          "name": "BioPlete™ Advanced Formula",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Ethos Research & Development",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "30 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "30 Years to 65 Years"
      },
      "enrollment_count": 30,
      "start_date": "2021-11-02",
      "completion_date": "2022-10-05",
      "has_results": false,
      "last_update_posted_date": "2023-06-22",
      "last_synced_at": "2026-09-22T16:02:15.300Z",
      "location_count": 2,
      "location_summary": "Tampa, Florida • West Palm Beach, Florida",
      "locations": [
        {
          "city": "Tampa",
          "state": "Florida"
        },
        {
          "city": "West Palm Beach",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05278533"
    },
    {
      "nct_id": "NCT00920621",
      "title": "Randomized Trial: Maternal Vitamin D Supplementation to Prevent Childhood Asthma (VDAART)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Asthma"
      ],
      "interventions": [
        {
          "name": "Vitamin D 3 cholecalciferol",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Vitamin D3",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Brigham and Women's Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "39 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 39 Years · Female only"
      },
      "enrollment_count": 876,
      "start_date": "2009-09",
      "completion_date": "2023-08",
      "has_results": true,
      "last_update_posted_date": "2026-05-12",
      "last_synced_at": "2026-09-22T16:02:15.300Z",
      "location_count": 3,
      "location_summary": "San Diego, California • Boston, Massachusetts • St Louis, Missouri",
      "locations": [
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00920621"
    }
  ]
}