{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Placebo+tablet%2Bprenatal+vitamin",
    "query": {
      "intervention": "Placebo tablet+prenatal vitamin"
    },
    "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": "2026-10-02T02:36:32.717Z",
  "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": "NCT00610688",
      "title": "Controlled Trial of Prenatal Vitamin D3 Supplementation to Prevent Vitamin D Deficiency in Mothers and Their Infants",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Vitamin D Deficiency"
      ],
      "interventions": [
        {
          "name": "Prenatal Vitamin",
          "type": "DRUG"
        },
        {
          "name": "Cholecalciferol (Vitamin D3)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Children's Hospital Medical Center, Cincinnati",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "45 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 45 Years · Female only"
      },
      "enrollment_count": 192,
      "start_date": "2008-01",
      "completion_date": "2012-04",
      "has_results": true,
      "last_update_posted_date": "2021-10-19",
      "last_synced_at": "2026-10-02T02:36:32.717Z",
      "location_count": 1,
      "location_summary": "Cincinnati, Ohio",
      "locations": [
        {
          "city": "Cincinnati",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00610688"
    },
    {
      "nct_id": "NCT02272387",
      "title": "Is Vitamin D Insufficiency and Deficiency Associated With Antepartum and Postpartum Depression?",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Depression",
        "Postpartum Depression"
      ],
      "interventions": [
        {
          "name": "Vitamin D3 (Cholecalciferol)",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "OTHER"
      ],
      "sponsor": "St. Luke's-Roosevelt Hospital Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 151,
      "start_date": "2014-10",
      "completion_date": "2016-04-14",
      "has_results": false,
      "last_update_posted_date": "2017-08-24",
      "last_synced_at": "2026-10-02T02:36:32.717Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02272387"
    },
    {
      "nct_id": "NCT01723696",
      "title": "Vitamin C to Decrease Effects of Smoking in Pregnancy on Infant Lung Function",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "Pulmonary Function; Newborn, Abnormal",
        "Infant Wheeze",
        "In-utero Nicotine",
        "Second Hand Smoke"
      ],
      "interventions": [
        {
          "name": "Vitamin C +prenatal vitamin",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo tablet+prenatal vitamin",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Oregon Health and Science University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "15 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "15 Years and older · Female only"
      },
      "enrollment_count": 252,
      "start_date": "2012-12",
      "completion_date": "2017-12",
      "has_results": true,
      "last_update_posted_date": "2019-04-17",
      "last_synced_at": "2026-10-02T02:36:32.717Z",
      "location_count": 2,
      "location_summary": "Indianapolis, Indiana • Portland, Oregon",
      "locations": [
        {
          "city": "Indianapolis",
          "state": "Indiana"
        },
        {
          "city": "Portland",
          "state": "Oregon"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01723696"
    },
    {
      "nct_id": "NCT03646487",
      "title": "A Randomized Placebo Controlled Pilot Study of Probiotic Supplementation in At-risk Pregnant Women",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Iron-deficiency",
        "Pregnancy, High Risk",
        "Stress, Psychological"
      ],
      "interventions": [
        {
          "name": "Probiotic LP299v 10x10 colony forming units in capsule form",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo in capsule form",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "OTHER"
      ],
      "sponsor": "University of Illinois at Chicago",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "45 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 45 Years · Female only"
      },
      "enrollment_count": 20,
      "start_date": "2018-11-19",
      "completion_date": "2020-07-21",
      "has_results": true,
      "last_update_posted_date": "2023-04-07",
      "last_synced_at": "2026-10-02T02:36:32.717Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03646487"
    }
  ]
}