{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Head+Start+Participation",
    "query": {
      "condition": "Head Start Participation"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 8,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-05-22T09:43:59.490Z",
  "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": "NCT06510218",
      "title": "The 2021-2022 Study of Family and Staff Well-Being in Head Start AIAN FACES Programs",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Head Start Participation"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Mathematica Policy Research, Inc.",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "2 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "2 Years and older"
      },
      "enrollment_count": 560,
      "start_date": "2021-08-02",
      "completion_date": "2022-07-31",
      "has_results": false,
      "last_update_posted_date": "2024-07-22",
      "last_synced_at": "2026-05-22T09:43:59.490Z",
      "location_count": 1,
      "location_summary": "Washington D.C., District of Columbia",
      "locations": [
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06510218"
    },
    {
      "nct_id": "NCT06512740",
      "title": "The 2021-2022 Study of Family and Staff Well-Being in Head Start FACES Programs",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Head Start Participation"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Mathematica Policy Research, Inc.",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "2 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "2 Years and older"
      },
      "enrollment_count": 4825,
      "start_date": "2021-08-30",
      "completion_date": "2022-07-31",
      "has_results": false,
      "last_update_posted_date": "2024-07-22",
      "last_synced_at": "2026-05-22T09:43:59.490Z",
      "location_count": 1,
      "location_summary": "Washington D.C., District of Columbia",
      "locations": [
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06512740"
    },
    {
      "nct_id": "NCT05145933",
      "title": "Head Start REACH: Strengthening Outreach, Recruitment and Engagement Approaches With Families",
      "overall_status": "UNKNOWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Early Intervention, Educational (Head Start and Early Head Start Access and Participation)"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Mathematica Policy Research, Inc.",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 174,
      "start_date": "2022-01-03",
      "completion_date": "2023-06-30",
      "has_results": false,
      "last_update_posted_date": "2021-12-06",
      "last_synced_at": "2026-05-22T09:43:59.490Z",
      "location_count": 1,
      "location_summary": "Washington D.C., District of Columbia",
      "locations": [
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05145933"
    },
    {
      "nct_id": "NCT03705377",
      "title": "Head Start Family and Child Experiences Survey (FACES 2014)",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Head Start Participation"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Mathematica Policy Research, Inc.",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "3 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "3 Years and older"
      },
      "enrollment_count": 5193,
      "start_date": "2014-05-01",
      "completion_date": "2017-06-30",
      "has_results": false,
      "last_update_posted_date": "2019-02-26",
      "last_synced_at": "2026-05-22T09:43:59.490Z",
      "location_count": 1,
      "location_summary": "Washington D.C., District of Columbia",
      "locations": [
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03705377"
    },
    {
      "nct_id": "NCT04897789",
      "title": "The Early Head Start Family and Child Experiences Survey (Baby FACES 2018)",
      "overall_status": "UNKNOWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Early Head Start Participation"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Mathematica Policy Research, Inc.",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "4 Years",
        "sex": "ALL",
        "summary": "Up to 4 Years"
      },
      "enrollment_count": 6723,
      "start_date": "2017-10-01",
      "completion_date": "2023-03-01",
      "has_results": false,
      "last_update_posted_date": "2021-05-24",
      "last_synced_at": "2026-05-22T09:43:59.490Z",
      "location_count": 1,
      "location_summary": "Princeton, New Jersey",
      "locations": [
        {
          "city": "Princeton",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04897789"
    },
    {
      "nct_id": "NCT04046965",
      "title": "American Indian and Alaska Native Head Start Family and Child Experiences Survey (AIAN FACES 2019)",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Head Start Participation"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Mathematica Policy Research, Inc.",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "2 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "2 Years and older"
      },
      "enrollment_count": 1587,
      "start_date": "2019-09-01",
      "completion_date": "2020-07-31",
      "has_results": false,
      "last_update_posted_date": "2024-08-02",
      "last_synced_at": "2026-05-22T09:43:59.490Z",
      "location_count": 1,
      "location_summary": "Washington D.C., District of Columbia",
      "locations": [
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04046965"
    },
    {
      "nct_id": "NCT03971435",
      "title": "Head Start Family and Child Experiences Survey (FACES 2019)",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Head Start Participation"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Mathematica Policy Research, Inc.",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "2 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "2 Years and older"
      },
      "enrollment_count": 5593,
      "start_date": "2019-09-02",
      "completion_date": "2020-07-31",
      "has_results": false,
      "last_update_posted_date": "2024-07-24",
      "last_synced_at": "2026-05-22T09:43:59.490Z",
      "location_count": 1,
      "location_summary": "Washington D.C., District of Columbia",
      "locations": [
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03971435"
    },
    {
      "nct_id": "NCT03842111",
      "title": "American Indian and Alaska Native Head Start Family and Child Experiences Survey",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Head Start Participation"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Mathematica Policy Research, Inc.",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "3 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "3 Years and older"
      },
      "enrollment_count": 1194,
      "start_date": "2014-10-01",
      "completion_date": "2016-06-30",
      "has_results": false,
      "last_update_posted_date": "2019-10-08",
      "last_synced_at": "2026-05-22T09:43:59.490Z",
      "location_count": 1,
      "location_summary": "Washington D.C., District of Columbia",
      "locations": [
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03842111"
    }
  ]
}