{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Pneumovax+23-+pneumococcal+polysaccharide&page=2",
    "query": {
      "intervention": "Pneumovax 23- pneumococcal polysaccharide",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 60,
    "total_pages": 6,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Pneumovax+23-+pneumococcal+polysaccharide&page=3&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Pneumovax+23-+pneumococcal+polysaccharide&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-09T01:37:01.828Z",
  "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": "NCT04168190",
      "title": "A Phase 1/Phase 2 Study of Polyvalent Pneumococcal Conjugate Vaccine (V116) in Adults (V116-001)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Pneumonia, Pneumococcal"
      ],
      "interventions": [
        {
          "name": "V116",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Pneumovax™23",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Merck Sharp & Dohme LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 600,
      "start_date": "2019-12-06",
      "completion_date": "2021-07-12",
      "has_results": true,
      "last_update_posted_date": "2022-09-16",
      "last_synced_at": "2026-10-09T01:37:01.828Z",
      "location_count": 20,
      "location_summary": "Birmingham, Alabama • Mesa, Arizona • Coral Gables, Florida + 15 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Mesa",
          "state": "Arizona"
        },
        {
          "city": "Coral Gables",
          "state": "Florida"
        },
        {
          "city": "Hialeah",
          "state": "Florida"
        },
        {
          "city": "Hollywood",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04168190"
    },
    {
      "nct_id": "NCT06177912",
      "title": "A Clinical Study of the V116 Vaccine for Children and Teenagers (V116-013)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Pneumococcal Infection"
      ],
      "interventions": [
        {
          "name": "V116",
          "type": "BIOLOGICAL"
        },
        {
          "name": "PPSV23",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Merck Sharp & Dohme LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "2 Years",
        "maximum_age": "17 Years",
        "sex": "ALL",
        "summary": "2 Years to 17 Years"
      },
      "enrollment_count": 882,
      "start_date": "2024-01-18",
      "completion_date": "2025-02-26",
      "has_results": true,
      "last_update_posted_date": "2026-03-11",
      "last_synced_at": "2026-10-09T01:37:01.828Z",
      "location_count": 29,
      "location_summary": "Birmingham, Alabama • Phoenix, Arizona • Madera, California + 23 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Madera",
          "state": "California"
        },
        {
          "city": "Colorado Springs",
          "state": "Colorado"
        },
        {
          "city": "Orlando",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06177912"
    },
    {
      "nct_id": "NCT05696080",
      "title": "Safety and Immunogenicity of V116 in Adults With Increased Risk for Pneumococcal Disease (V116-008)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Pneumococcal Infection"
      ],
      "interventions": [
        {
          "name": "V116",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Placebo",
          "type": "BIOLOGICAL"
        },
        {
          "name": "PCV15",
          "type": "BIOLOGICAL"
        },
        {
          "name": "PPSV23",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Merck Sharp & Dohme LLC",
      "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": 518,
      "start_date": "2023-02-13",
      "completion_date": "2024-02-16",
      "has_results": true,
      "last_update_posted_date": "2026-03-03",
      "last_synced_at": "2026-10-09T01:37:01.828Z",
      "location_count": 8,
      "location_summary": "Mesa, Arizona • Hialeah, Florida • West Palm Beach, Florida + 5 more",
      "locations": [
        {
          "city": "Mesa",
          "state": "Arizona"
        },
        {
          "city": "Hialeah",
          "state": "Florida"
        },
        {
          "city": "West Palm Beach",
          "state": "Florida"
        },
        {
          "city": "Ridgeland",
          "state": "Mississippi"
        },
        {
          "city": "New Windsor",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05696080"
    },
    {
      "nct_id": "NCT02079701",
      "title": "Effectiveness of the Pneumococcal Polysaccharide Vaccine in Military Recruits",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Pneumonia",
        "Acute Respiratory Disease"
      ],
      "interventions": [
        {
          "name": "23-valent pneumococcal vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Placebo",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Naval Health Research Center",
      "sponsor_class": "FED",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 152723,
      "start_date": "2000-10",
      "completion_date": "2007-06",
      "has_results": false,
      "last_update_posted_date": "2014-03-06",
      "last_synced_at": "2026-10-09T01:37:01.828Z",
      "location_count": 5,
      "location_summary": "San Diego, California • Great Lakes, Illinois • Fort Leonard Wood, Missouri + 2 more",
      "locations": [
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Great Lakes",
          "state": "Illinois"
        },
        {
          "city": "Fort Leonard Wood",
          "state": "Missouri"
        },
        {
          "city": "Fort Jackson",
          "state": "South Carolina"
        },
        {
          "city": "Parris Island",
          "state": "South Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02079701"
    },
    {
      "nct_id": "NCT00169234",
      "title": "Pneumococcal Adult-dose Ranging Immunization Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Pneumonia"
      ],
      "interventions": [
        {
          "name": "PCV7, Prevnar®",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Pneumovax 23",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Kaiser Permanente",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "70 Years",
        "maximum_age": "79 Years",
        "sex": "ALL",
        "summary": "70 Years to 79 Years"
      },
      "enrollment_count": 220,
      "start_date": "2003-05",
      "completion_date": "2005-02",
      "has_results": false,
      "last_update_posted_date": "2017-10-13",
      "last_synced_at": "2026-10-09T01:37:01.828Z",
      "location_count": 2,
      "location_summary": "Seattle, Washington",
      "locations": [
        {
          "city": "Seattle",
          "state": "Washington"
        },
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00169234"
    },
    {
      "nct_id": "NCT02719379",
      "title": "Immune Response to Pneumococcal Polysaccharide Vaccine (23-valent) Predicts Asthma Status and Outcomes in Late Adolescents With Asthma",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Asthma"
      ],
      "interventions": [
        {
          "name": "Pneumonococcal Polysaccharide Vaccine 23-valent (PPSV-23)",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Rohit Divekar",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "19 Years",
        "maximum_age": "20 Years",
        "sex": "ALL",
        "summary": "19 Years to 20 Years"
      },
      "enrollment_count": 60,
      "start_date": "2016-04",
      "completion_date": "2017-06",
      "has_results": false,
      "last_update_posted_date": "2017-10-11",
      "last_synced_at": "2026-10-09T01:37:01.828Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02719379"
    },
    {
      "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": "2026-10-09T01:37:01.828Z",
      "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": "NCT00546572",
      "title": "Study Evaluating The Safety, Tolerability And Immunogenicity Of A 13-Valent Pneumococcal Conjugate Vaccine (13vPnC)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Pneumococcal Infections"
      ],
      "interventions": [
        {
          "name": "13 valent Pneumococcal Conjugate Vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "23vPS",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Wyeth is now a wholly owned subsidiary of Pfizer",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "70 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "70 Years and older"
      },
      "enrollment_count": 938,
      "start_date": "2007-11",
      "completion_date": "2010-07",
      "has_results": true,
      "last_update_posted_date": "2011-07-14",
      "last_synced_at": "2026-10-09T01:37:01.828Z",
      "location_count": 51,
      "location_summary": "Mobile, Alabama • Mesa, Arizona • Fountain Valley, California + 43 more",
      "locations": [
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Mesa",
          "state": "Arizona"
        },
        {
          "city": "Mesa",
          "state": "Arizona"
        },
        {
          "city": "Fountain Valley",
          "state": "California"
        },
        {
          "city": "Denver",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00546572"
    },
    {
      "nct_id": "NCT03835975",
      "title": "Trial to Evaluate the Safety and Immunogenicity of a 20-Valent Pneumococcal Vaccine in Adults 65 Years of Age or Older With Prior Pneumococcal Vaccination",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Pneumococcal Disease"
      ],
      "interventions": [
        {
          "name": "13vPnC",
          "type": "BIOLOGICAL"
        },
        {
          "name": "PPSV23",
          "type": "BIOLOGICAL"
        },
        {
          "name": "20vPnC",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Pfizer",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "65 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "65 Years and older"
      },
      "enrollment_count": 875,
      "start_date": "2019-02-12",
      "completion_date": "2020-02-12",
      "has_results": true,
      "last_update_posted_date": "2021-02-21",
      "last_synced_at": "2026-10-09T01:37:01.828Z",
      "location_count": 34,
      "location_summary": "Mobile, Alabama • Chandler, Arizona • Peoria, Arizona + 26 more",
      "locations": [
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Chandler",
          "state": "Arizona"
        },
        {
          "city": "Peoria",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03835975"
    },
    {
      "nct_id": "NCT05158140",
      "title": "Safety, Tolerability, and Immunogenicity of V110 or V114 Co-administered With a Booster Dose of mRNA-1273 in Healthy Adults (V110-911)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Pneumococcal Infection"
      ],
      "interventions": [
        {
          "name": "V110",
          "type": "BIOLOGICAL"
        },
        {
          "name": "V114",
          "type": "BIOLOGICAL"
        },
        {
          "name": "mRNA-1273",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Placebo for V110",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Placebo for V114",
          "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": 850,
      "start_date": "2022-01-12",
      "completion_date": "2023-02-21",
      "has_results": true,
      "last_update_posted_date": "2025-07-18",
      "last_synced_at": "2026-10-09T01:37:01.828Z",
      "location_count": 42,
      "location_summary": "North Hollywood, California • Northridge, California • Paramount, California + 38 more",
      "locations": [
        {
          "city": "North Hollywood",
          "state": "California"
        },
        {
          "city": "Northridge",
          "state": "California"
        },
        {
          "city": "Paramount",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05158140"
    }
  ]
}