{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=13+valent+conjugated+pneumococcal+vaccine&page=2",
    "query": {
      "intervention": "13 valent conjugated pneumococcal vaccine",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 80,
    "total_pages": 8,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=13+valent+conjugated+pneumococcal+vaccine&page=3&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=13+valent+conjugated+pneumococcal+vaccine&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-10T01:29:05.938Z",
  "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": "NCT00743652",
      "title": "Study Evaluating the Impact of the 13-valent Pneumococcal Conjugate Vaccine (13vPnC) in Alaskan Native Children.",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Pneumococcal Disease",
        "13-valent Pneumococcal Vaccine"
      ],
      "interventions": [
        {
          "name": "13-valent Pneumococcal Conjugate Vaccine",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Pfizer",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "42 Days",
        "maximum_age": "5 Years",
        "sex": "ALL",
        "summary": "42 Days to 5 Years"
      },
      "enrollment_count": 373,
      "start_date": "2009-01",
      "completion_date": "2010-09",
      "has_results": true,
      "last_update_posted_date": "2012-03-15",
      "last_synced_at": "2026-10-10T01:29:05.938Z",
      "location_count": 21,
      "location_summary": "Akiak, Alaska • Bethel, Alaska • Chefornak, Alaska + 18 more",
      "locations": [
        {
          "city": "Akiak",
          "state": "Alaska"
        },
        {
          "city": "Bethel",
          "state": "Alaska"
        },
        {
          "city": "Chefornak",
          "state": "Alaska"
        },
        {
          "city": "Chevak",
          "state": "Alaska"
        },
        {
          "city": "Eek",
          "state": "Alaska"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00743652"
    },
    {
      "nct_id": "NCT04379713",
      "title": "20-valent Pneumococcal Conjugate Vaccine Safety Study in Healthy Infants",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Pneumococcal Disease"
      ],
      "interventions": [
        {
          "name": "20-valent pneumococcal conjugate vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "13-valent pneumococcal conjugate vaccine",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Pfizer",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "42 Days",
        "maximum_age": "98 Days",
        "sex": "ALL",
        "summary": "42 Days to 98 Days"
      },
      "enrollment_count": 1511,
      "start_date": "2020-05-21",
      "completion_date": "2022-08-31",
      "has_results": true,
      "last_update_posted_date": "2023-06-13",
      "last_synced_at": "2026-10-10T01:29:05.938Z",
      "location_count": 41,
      "location_summary": "Tucson, Arizona • Fullerton, California • Oxnard, California + 33 more",
      "locations": [
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Fullerton",
          "state": "California"
        },
        {
          "city": "Oxnard",
          "state": "California"
        },
        {
          "city": "Sacramento",
          "state": "California"
        },
        {
          "city": "Ventura",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04379713"
    },
    {
      "nct_id": "NCT00963235",
      "title": "Safety & Immunogenicity of 13vPnC in HIV-Infected Subjects Aged 18 or Older Who Were Previously Immunized With 23vPS",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "HIV Infections",
        "Pneumococcal Infections"
      ],
      "interventions": [
        {
          "name": "13-valent pneumococcal conjugate vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Blood draw",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "PROCEDURE"
      ],
      "sponsor": "Pfizer",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 331,
      "start_date": "2009-11",
      "completion_date": "2012-05",
      "has_results": true,
      "last_update_posted_date": "2013-06-10",
      "last_synced_at": "2026-10-10T01:29:05.938Z",
      "location_count": 15,
      "location_summary": "San Francisco, California • Aurora, Colorado • Washington D.C., District of Columbia + 8 more",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Lexington",
          "state": "Kentucky"
        },
        {
          "city": "Springfield",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00963235"
    },
    {
      "nct_id": "NCT03950622",
      "title": "Safety and Immunogenicity of V114 in Healthy Adults (V114-019/PNEU-AGE)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Pneumococcal Infections"
      ],
      "interventions": [
        {
          "name": "V114",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Prevnar 13®",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Merck Sharp & Dohme LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "50 Years and older"
      },
      "enrollment_count": 1205,
      "start_date": "2019-06-13",
      "completion_date": "2020-03-30",
      "has_results": true,
      "last_update_posted_date": "2021-04-26",
      "last_synced_at": "2026-10-10T01:29:05.938Z",
      "location_count": 14,
      "location_summary": "Mesa, Arizona • San Diego, California • Hialeah, Florida + 10 more",
      "locations": [
        {
          "city": "Mesa",
          "state": "Arizona"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Hialeah",
          "state": "Florida"
        },
        {
          "city": "Hollywood",
          "state": "Florida"
        },
        {
          "city": "Miami",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03950622"
    },
    {
      "nct_id": "NCT00761631",
      "title": "Study Evaluating 13-valent Pneumococcal Conjugate Vaccine (13vPnC) in Healthy Children Aged 15 Months to 17 Years",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Healthy Subjects"
      ],
      "interventions": [
        {
          "name": "13 valent pneumococcal conjugate vaccine",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Pfizer",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "15 Months",
        "maximum_age": "18 Years",
        "sex": "ALL",
        "summary": "15 Months to 18 Years"
      },
      "enrollment_count": 1200,
      "start_date": "2008-11-18",
      "completion_date": "2010-08-10",
      "has_results": true,
      "last_update_posted_date": "2026-07-21",
      "last_synced_at": "2026-10-10T01:29:05.938Z",
      "location_count": 36,
      "location_summary": "Benton, Arkansas • Fayetteville, Arkansas • Jonesboro, Arkansas + 29 more",
      "locations": [
        {
          "city": "Benton",
          "state": "Arkansas"
        },
        {
          "city": "Fayetteville",
          "state": "Arkansas"
        },
        {
          "city": "Jonesboro",
          "state": "Arkansas"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00761631"
    },
    {
      "nct_id": "NCT00427895",
      "title": "Study Comparing a 13-valent Pneumococcal Conjugate Vaccine With 23-valent Pneumococcal Polysaccharide Vaccine in Adults",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Pneumococcal Infections"
      ],
      "interventions": [
        {
          "name": "13-valent pneumococcal conjugate vaccine (13vPnC)",
          "type": "BIOLOGICAL"
        },
        {
          "name": "23-valent Pneumococcal Polysaccharide Vaccine (23vPS)",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Pfizer",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "64 Years",
        "sex": "ALL",
        "summary": "18 Years to 64 Years"
      },
      "enrollment_count": 2141,
      "start_date": "2007-02-27",
      "completion_date": "2011-08-01",
      "has_results": true,
      "last_update_posted_date": "2021-11-15",
      "last_synced_at": "2026-10-10T01:29:05.938Z",
      "location_count": 26,
      "location_summary": "Huntsville, Alabama • Chandler, Arizona • Phoenix, Arizona + 19 more",
      "locations": [
        {
          "city": "Huntsville",
          "state": "Alabama"
        },
        {
          "city": "Chandler",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Pembroke Pines",
          "state": "Florida"
        },
        {
          "city": "Meridian",
          "state": "Idaho"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00427895"
    },
    {
      "nct_id": "NCT03480763",
      "title": "A Study to Evaluate the Safety, Tolerability, and Immunogenicity of V114 Followed by PNEUMOVAX™23 in Healthy Adults 50 Years of Age or Older (V114-016/PNEU-PATH)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Pneumococcal Infections"
      ],
      "interventions": [
        {
          "name": "V114",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Prevnar 13™",
          "type": "BIOLOGICAL"
        },
        {
          "name": "PNEUMOVAX™23",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Merck Sharp & Dohme LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "50 Years and older"
      },
      "enrollment_count": 652,
      "start_date": "2018-06-22",
      "completion_date": "2019-12-23",
      "has_results": true,
      "last_update_posted_date": "2021-11-02",
      "last_synced_at": "2026-10-10T01:29:05.938Z",
      "location_count": 15,
      "location_summary": "Chandler, Arizona • Phoenix, Arizona • Spring Valley, California + 12 more",
      "locations": [
        {
          "city": "Chandler",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Spring Valley",
          "state": "California"
        },
        {
          "city": "Walnut Creek",
          "state": "California"
        },
        {
          "city": "Coral Gables",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03480763"
    },
    {
      "nct_id": "NCT01307449",
      "title": "Systems Biology of PNEUMOVAX®23 and PREVNAR 13®",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Pneumococcal Infection"
      ],
      "interventions": [
        {
          "name": "PNEUMOVAX",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Prevnar",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Emory University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "25 Years",
        "maximum_age": "89 Years",
        "sex": "ALL",
        "summary": "25 Years to 89 Years"
      },
      "enrollment_count": 88,
      "start_date": "2014-04",
      "completion_date": "2017-07",
      "has_results": true,
      "last_update_posted_date": "2018-10-02",
      "last_synced_at": "2026-10-10T01:29:05.938Z",
      "location_count": 2,
      "location_summary": "Decatur, Georgia",
      "locations": [
        {
          "city": "Decatur",
          "state": "Georgia"
        },
        {
          "city": "Decatur",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01307449"
    },
    {
      "nct_id": "NCT04382326",
      "title": "20-valent Pneumococcal Conjugate Vaccine Safety and Immunogenicity Study of a 4-Dose Series in Healthy Infants",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Pneumococcal Disease"
      ],
      "interventions": [
        {
          "name": "20-valent pneumococcal conjugate vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "13-valent pneumococcal conjugate vaccine",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Pfizer",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "42 Days",
        "maximum_age": "98 Days",
        "sex": "ALL",
        "summary": "42 Days to 98 Days"
      },
      "enrollment_count": 1997,
      "start_date": "2020-05-20",
      "completion_date": "2022-09-02",
      "has_results": true,
      "last_update_posted_date": "2023-12-06",
      "last_synced_at": "2026-10-10T01:29:05.938Z",
      "location_count": 105,
      "location_summary": "Birmingham, Alabama • Dothan, Alabama • Phoenix, Arizona + 78 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Dothan",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Fayetteville",
          "state": "Arkansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04382326"
    },
    {
      "nct_id": "NCT00824850",
      "title": "Study Evaluating Prevnar Infant Long-term Immune Response Versus Prevnar Naive Cohort",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Pneumococcal Conjugate Vaccine"
      ],
      "interventions": [
        {
          "name": "13-valent Pneumococcal Conjugate Vaccine",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Pfizer",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "8 Years",
        "maximum_age": "16 Years",
        "sex": "ALL",
        "summary": "8 Years to 16 Years"
      },
      "enrollment_count": 75,
      "start_date": "2010-01",
      "completion_date": "2010-09",
      "has_results": true,
      "last_update_posted_date": "2011-11-11",
      "last_synced_at": "2026-10-10T01:29:05.938Z",
      "location_count": 2,
      "location_summary": "Hayward, California • San Jose, California",
      "locations": [
        {
          "city": "Hayward",
          "state": "California"
        },
        {
          "city": "San Jose",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00824850"
    }
  ]
}