{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=M-M-R%C2%AE+II+%28Merck+and+Co%29",
    "query": {
      "intervention": "M-M-R® II (Merck and Co)"
    },
    "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": "2026-09-24T16:08:53.417Z",
  "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": "NCT00861744",
      "title": "Immunogenicity of GSKs' MMR Vaccine (209762) vs. M-M-R® II, When Given With Routine Vaccines at 12-15 Months of Age",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Rubella",
        "Mumps",
        "Measles",
        "Measles-Mumps-Rubella Vaccine"
      ],
      "interventions": [
        {
          "name": "GSK Biological's investigational vaccine 209762",
          "type": "BIOLOGICAL"
        },
        {
          "name": "M-M-R® II (Merck and Co)",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Varivax®",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Havrix®",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Prevnar®",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "GlaxoSmithKline",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "12 Months",
        "maximum_age": "15 Months",
        "sex": "ALL",
        "summary": "12 Months to 15 Months"
      },
      "enrollment_count": 1259,
      "start_date": "2009-06-03",
      "completion_date": "2012-06-18",
      "has_results": true,
      "last_update_posted_date": "2020-01-03",
      "last_synced_at": "2026-09-24T16:08:53.417Z",
      "location_count": 45,
      "location_summary": "Tuscaloosa, Alabama • Conway, Arkansas • Jonesboro, Arkansas + 42 more",
      "locations": [
        {
          "city": "Tuscaloosa",
          "state": "Alabama"
        },
        {
          "city": "Conway",
          "state": "Arkansas"
        },
        {
          "city": "Jonesboro",
          "state": "Arkansas"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Anaheim",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00861744"
    },
    {
      "nct_id": "NCT00263692",
      "title": "Comparison of GSK Biologicals' DTaP-IPV Candidate Vaccine to DTaP and IPV Separately Administered Vaccines in Terms of Immune Response and Safety",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Diphtheria",
        "Acellular Pertussis",
        "Tetanus"
      ],
      "interventions": [
        {
          "name": "Prophylaxis: Diphtheria, tetanus, pertussis, poliovirus type 1, type 2 and type 3",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "GlaxoSmithKline",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "4 Years",
        "maximum_age": "6 Years",
        "sex": "ALL",
        "summary": "4 Years to 6 Years"
      },
      "enrollment_count": 401,
      "start_date": "2002-11",
      "completion_date": "2004-09",
      "has_results": false,
      "last_update_posted_date": "2016-09-15",
      "last_synced_at": "2026-09-24T16:08:53.417Z",
      "location_count": 15,
      "location_summary": "Jonesboro, Arkansas • Fountain Valley, California • Oakland, California + 12 more",
      "locations": [
        {
          "city": "Jonesboro",
          "state": "Arkansas"
        },
        {
          "city": "Fountain Valley",
          "state": "California"
        },
        {
          "city": "Oakland",
          "state": "California"
        },
        {
          "city": "Torrance",
          "state": "California"
        },
        {
          "city": "Marietta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00263692"
    },
    {
      "nct_id": "NCT00871117",
      "title": "Immunogenicity and Safety of Kinrix + (Measles Mumps Rubella) MMR Vaccine With and Without Varicella Vaccine in Healthy Children 4-6 Years",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Tetanus",
        "Acellular Pertussis",
        "Diphtheria"
      ],
      "interventions": [
        {
          "name": "GSK Biologicals'Kinrix®",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Merck and Company's MMRII",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Merck and Company's Varivax",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "GlaxoSmithKline",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "4 Years",
        "maximum_age": "6 Years",
        "sex": "ALL",
        "summary": "4 Years to 6 Years"
      },
      "enrollment_count": 478,
      "start_date": "2009-03-31",
      "completion_date": "2010-06-15",
      "has_results": true,
      "last_update_posted_date": "2018-08-22",
      "last_synced_at": "2026-09-24T16:08:53.417Z",
      "location_count": 11,
      "location_summary": "Antioch, California • Daly City, California • Hayward, California + 7 more",
      "locations": [
        {
          "city": "Antioch",
          "state": "California"
        },
        {
          "city": "Daly City",
          "state": "California"
        },
        {
          "city": "Hayward",
          "state": "California"
        },
        {
          "city": "Redwood City",
          "state": "California"
        },
        {
          "city": "Roseville",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00871117"
    },
    {
      "nct_id": "NCT00197015",
      "title": "Immunogenicity & Safety of Hepatitis A Vaccine Co-admin With a Measles/Mumps/Rubella & a Varicella Vaccine in Children",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Hepatitis A"
      ],
      "interventions": [
        {
          "name": "Havrix®",
          "type": "BIOLOGICAL"
        },
        {
          "name": "M-M-R®II",
          "type": "BIOLOGICAL"
        },
        {
          "name": "VARIVAX®",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "GlaxoSmithKline",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "12 Months",
        "maximum_age": "13 Months",
        "sex": "ALL",
        "summary": "12 Months to 13 Months"
      },
      "enrollment_count": 1474,
      "start_date": "2003-10-06",
      "completion_date": "2009-06-09",
      "has_results": true,
      "last_update_posted_date": "2018-07-31",
      "last_synced_at": "2026-09-24T16:08:53.417Z",
      "location_count": 42,
      "location_summary": "Cabot, Arkansas • Jonesboro, Arkansas • North Little Rock, Arkansas + 37 more",
      "locations": [
        {
          "city": "Cabot",
          "state": "Arkansas"
        },
        {
          "city": "Jonesboro",
          "state": "Arkansas"
        },
        {
          "city": "North Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Huntington Beach",
          "state": "California"
        },
        {
          "city": "Oakland",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00197015"
    }
  ]
}