{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=pneumococcal+polysaccharide+vaccine&page=2",
    "query": {
      "intervention": "pneumococcal polysaccharide vaccine",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 249,
    "total_pages": 25,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=pneumococcal+polysaccharide+vaccine&page=3&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=pneumococcal+polysaccharide+vaccine&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-02T12:51:48.438Z",
  "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": "NCT00980655",
      "title": "Study to Evaluate 13 Valent Pneumococcal Conjugate Vaccine (13vPnC) Vaccine Followed by 23-valent Pneumococcal Polysaccharide Vaccine (23vPS) Vaccine in Allogeneic Hematopoietic Stem Cell Transplant Recipients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Vaccines, Pneumococcal Conjugate Vaccine"
      ],
      "interventions": [
        {
          "name": "13vPnC",
          "type": "BIOLOGICAL"
        },
        {
          "name": "23vPS",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Pfizer",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "2 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "2 Years and older"
      },
      "enrollment_count": 251,
      "start_date": "2010-01-18",
      "completion_date": "2013-05-16",
      "has_results": true,
      "last_update_posted_date": "2018-12-20",
      "last_synced_at": "2026-10-02T12:51:48.438Z",
      "location_count": 9,
      "location_summary": "Lexington, Kentucky • New Hyde Park, New York • New York, New York + 2 more",
      "locations": [
        {
          "city": "Lexington",
          "state": "Kentucky"
        },
        {
          "city": "New Hyde Park",
          "state": "New York"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00980655"
    },
    {
      "nct_id": "NCT00294021",
      "title": "Long-term Impact of Pneumococcal Conjugate Vaccine on Carriage",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Pneumococcal Infections"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Johns Hopkins Bloomberg School of Public Health",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 1000,
      "start_date": "2006-03",
      "completion_date": "2008-04",
      "has_results": false,
      "last_update_posted_date": "2012-09-26",
      "last_synced_at": "2026-10-02T12:51:48.438Z",
      "location_count": 1,
      "location_summary": "Chinle, Fort Defiance, Whiteriver, AZ; Gallup, Shiprock, NM, Arizona",
      "locations": [
        {
          "city": "Chinle, Fort Defiance, Whiteriver, AZ; Gallup, Shiprock, NM",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00294021"
    },
    {
      "nct_id": "NCT01974817",
      "title": "Study Response of 13-valent Conjugate Pneumococcal Vaccine in Patients With End Stage Renal Disease",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "End Stage Renal Disease"
      ],
      "interventions": [
        {
          "name": "13-valent conjugate pneumococcal vaccine",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Michigan State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "50 Years and older"
      },
      "enrollment_count": 25,
      "start_date": "2013-05",
      "completion_date": "2014-12",
      "has_results": true,
      "last_update_posted_date": "2016-11-17",
      "last_synced_at": "2026-10-02T12:51:48.438Z",
      "location_count": 1,
      "location_summary": "Lansing, Michigan",
      "locations": [
        {
          "city": "Lansing",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01974817"
    },
    {
      "nct_id": "NCT00445484",
      "title": "Lenalidomide and Vaccine Therapy in Treating Patients With Relapsed or Refractory Multiple Myeloma",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Multiple Myeloma and Plasma Cell Neoplasm"
      ],
      "interventions": [
        {
          "name": "pneumococcal polyvalent vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "lenalidomide",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG"
      ],
      "sponsor": "Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 22,
      "start_date": "2007-01",
      "completion_date": "2010-09",
      "has_results": true,
      "last_update_posted_date": "2015-08-24",
      "last_synced_at": "2026-10-02T12:51:48.438Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00445484"
    },
    {
      "nct_id": "NCT02012309",
      "title": "Mechanisms of Impaired HIV-associated B Cell and Pneumococcal Vaccine Responses",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "HIV",
        "Pneumococcal Infections",
        "Pneumococcal Vaccines"
      ],
      "interventions": [
        {
          "name": "PCV-13",
          "type": "BIOLOGICAL"
        },
        {
          "name": "PPSV-23",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "University of Colorado, Denver",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "18 Years to 55 Years"
      },
      "enrollment_count": 60,
      "start_date": "2014-08",
      "completion_date": "2021-06",
      "has_results": false,
      "last_update_posted_date": "2020-11-18",
      "last_synced_at": "2026-10-02T12:51:48.438Z",
      "location_count": 3,
      "location_summary": "Aurora, Colorado • Denver, Colorado",
      "locations": [
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Denver",
          "state": "Colorado"
        },
        {
          "city": "Denver",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02012309"
    },
    {
      "nct_id": "NCT07168915",
      "title": "A Study of V118E in Healthy Participants (V118E-003)",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy"
      ],
      "interventions": [
        {
          "name": "V118E",
          "type": "BIOLOGICAL"
        },
        {
          "name": "PREVNAR 20™",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Saline",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Merck Sharp & Dohme LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "49 Years",
        "sex": "ALL",
        "summary": "18 Years to 49 Years"
      },
      "enrollment_count": 126,
      "start_date": "2025-10-08",
      "completion_date": "2027-07-06",
      "has_results": false,
      "last_update_posted_date": "2026-07-15",
      "last_synced_at": "2026-10-02T12:51:48.438Z",
      "location_count": 4,
      "location_summary": "Hallandale, Florida • South Miami, Florida • Springfield, Missouri + 1 more",
      "locations": [
        {
          "city": "Hallandale",
          "state": "Florida"
        },
        {
          "city": "South Miami",
          "state": "Florida"
        },
        {
          "city": "Springfield",
          "state": "Missouri"
        },
        {
          "city": "Galveston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07168915"
    },
    {
      "nct_id": "NCT02654704",
      "title": "Vaccination Responses in Young and Older Adults",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Individuality",
        "Healthy",
        "Asthma",
        "Immune System and Related Disorders"
      ],
      "interventions": [
        {
          "name": "Pneumococcal Vaccination",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Michigan State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 61,
      "start_date": "2015-11",
      "completion_date": "2020-07",
      "has_results": false,
      "last_update_posted_date": "2020-07-29",
      "last_synced_at": "2026-10-02T12:51:48.438Z",
      "location_count": 1,
      "location_summary": "East Lansing, Michigan",
      "locations": [
        {
          "city": "East Lansing",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02654704"
    },
    {
      "nct_id": "NCT00023504",
      "title": "Antibody Production in Immune Disorders",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Primary Immune Deficiency"
      ],
      "interventions": [
        {
          "name": "Pneumovax",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Rabavert",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Prevnar",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Tetanus diphtheria toxoid",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "2 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "2 Years and older"
      },
      "enrollment_count": 21,
      "start_date": "2002-06-13",
      "completion_date": "2021-10-14",
      "has_results": false,
      "last_update_posted_date": "2021-10-15",
      "last_synced_at": "2026-10-02T12:51:48.438Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00023504"
    },
    {
      "nct_id": "NCT03636906",
      "title": "Respiratory Syncytial Virus (RSV) Investigational Vaccine in Infants Aged 6 and 7 Months Likely to be Unexposed to RSV",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Respiratory Syncytial Virus Infections"
      ],
      "interventions": [
        {
          "name": "RSV (GSK3389245A) lower dose formulation vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "RSV (GSK3389245A) higher dose formulation vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "GSK's multicomponent meningococcal B vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Pfizer's meningococcal group A, C, W-135 and Y conjugate vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "GSK's pneumococcal polysaccharide conjugate vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "GSK's meningococcal group A, C, W-135 and Y conjugate vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG"
      ],
      "sponsor": "GlaxoSmithKline",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "6 Months",
        "maximum_age": "7 Months",
        "sex": "ALL",
        "summary": "6 Months to 7 Months"
      },
      "enrollment_count": 201,
      "start_date": "2019-04-08",
      "completion_date": "2021-07-22",
      "has_results": true,
      "last_update_posted_date": "2022-07-27",
      "last_synced_at": "2026-10-02T12:51:48.438Z",
      "location_count": 4,
      "location_summary": "Atlanta, Georgia • Nampa, Idaho • Louisville, Kentucky + 1 more",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Nampa",
          "state": "Idaho"
        },
        {
          "city": "Louisville",
          "state": "Kentucky"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03636906"
    },
    {
      "nct_id": "NCT01944462",
      "title": "Impact and Cost of a Pharmacist Pneumococcal Vaccination Program With PNEUMOVAX® 23 at an Urban Senior Center",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Study is Open to Seniors Age 50 or Older"
      ],
      "interventions": [
        {
          "name": "Pharmacist Pneumococcal Vaccine Program (PPVP)",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Thomas Jefferson University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "50 Years and older"
      },
      "enrollment_count": 203,
      "start_date": "2014-01",
      "completion_date": "2014-11",
      "has_results": true,
      "last_update_posted_date": "2018-01-03",
      "last_synced_at": "2026-10-02T12:51:48.438Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01944462"
    }
  ]
}