{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Pneumococcal+Vaccine",
    "query": {
      "condition": "Pneumococcal Vaccine"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 176,
    "total_pages": 18,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Pneumococcal+Vaccine&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-06-10T12:59:01.280Z",
  "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": "NCT05297578",
      "title": "Safety, Tolerability, and Immunogenicity Study of a 24-Valent Pneumococcal Conjugate Vaccine (VAX-24) in Older Adults",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Pneumococcal Vaccines"
      ],
      "interventions": [
        {
          "name": "24-Valent Pneumococcal Conjugate Vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Pneumococcal 20-valent Conjugate Vaccine",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Vaxcyte, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "65 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "65 Years and older"
      },
      "enrollment_count": 207,
      "start_date": "2022-06-15",
      "completion_date": "2023-02-15",
      "has_results": true,
      "last_update_posted_date": "2024-10-09",
      "last_synced_at": "2026-06-10T12:59:01.280Z",
      "location_count": 20,
      "location_summary": "Birmingham, Alabama • DeLand, Florida • Hollywood, Florida + 17 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "DeLand",
          "state": "Florida"
        },
        {
          "city": "Hollywood",
          "state": "Florida"
        },
        {
          "city": "Sunrise",
          "state": "Florida"
        },
        {
          "city": "Savannah",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05297578"
    },
    {
      "nct_id": "NCT02987972",
      "title": "A Study to Evaluate the Safety, Tolerability, and Immunogenicity of Two Lots of V114 in Healthy Infants (V114-008)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Pneumococcal Infections"
      ],
      "interventions": [
        {
          "name": "V114 Lot 1",
          "type": "BIOLOGICAL"
        },
        {
          "name": "V114 Lot 2",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Prevnar 13™",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Merck Sharp & Dohme LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "6 Weeks",
        "maximum_age": "12 Weeks",
        "sex": "ALL",
        "summary": "6 Weeks to 12 Weeks"
      },
      "enrollment_count": 1051,
      "start_date": "2017-03-21",
      "completion_date": "2018-10-04",
      "has_results": true,
      "last_update_posted_date": "2019-10-23",
      "last_synced_at": "2026-06-10T12:59:01.280Z",
      "location_count": 30,
      "location_summary": "Birmingham, Alabama • Dothan, Alabama • Jonesboro, Arkansas + 27 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Dothan",
          "state": "Alabama"
        },
        {
          "city": "Jonesboro",
          "state": "Arkansas"
        },
        {
          "city": "Downey",
          "state": "California"
        },
        {
          "city": "Palmdale",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02987972"
    },
    {
      "nct_id": "NCT07284654",
      "title": "Safety, Tolerability, and Immunogenicity of VAX-31 in Adults ≥50 Years With Immunobridging to Adults 18-49",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Pneumococcal Vaccines"
      ],
      "interventions": [
        {
          "name": "31 valent pneumococcal conjugate vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "PCV20",
          "type": "BIOLOGICAL"
        },
        {
          "name": "PCV21",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Vaxcyte, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 4049,
      "start_date": "2025-12-01",
      "completion_date": "2027-01",
      "has_results": false,
      "last_update_posted_date": "2026-05-15",
      "last_synced_at": "2026-06-10T12:59:01.280Z",
      "location_count": 30,
      "location_summary": "Birmingham, Alabama • Chinle, Arizona • Whiteriver, Arizona + 27 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Chinle",
          "state": "Arizona"
        },
        {
          "city": "Whiteriver",
          "state": "Arizona"
        },
        {
          "city": "Riverside",
          "state": "California"
        },
        {
          "city": "Hollywood",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07284654"
    },
    {
      "nct_id": "NCT06720038",
      "title": "A Clinical Study to Evaluate the Safety, Tolerability, and Immunogenicity of VAX-31 in Healthy Infants",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Pneumococcal Vaccines"
      ],
      "interventions": [
        {
          "name": "0.5 mL of the low dose VAX-31",
          "type": "BIOLOGICAL"
        },
        {
          "name": "0.5 mL of the mid dose VAX-31",
          "type": "BIOLOGICAL"
        },
        {
          "name": "0.5 mL of the high dose VAX-31",
          "type": "BIOLOGICAL"
        },
        {
          "name": "0.5 mL dose of PCV20",
          "type": "BIOLOGICAL"
        },
        {
          "name": "0.5 mL of the High-PFS dose VAX-31",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Vaxcyte, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "42 Days",
        "maximum_age": "89 Days",
        "sex": "ALL",
        "summary": "42 Days to 89 Days"
      },
      "enrollment_count": 900,
      "start_date": "2024-11-25",
      "completion_date": "2027-12",
      "has_results": false,
      "last_update_posted_date": "2026-05-15",
      "last_synced_at": "2026-06-10T12:59:01.280Z",
      "location_count": 45,
      "location_summary": "Jonesboro, Arkansas • Gardena, California • Los Angeles, California + 32 more",
      "locations": [
        {
          "city": "Jonesboro",
          "state": "Arkansas"
        },
        {
          "city": "Gardena",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Ontario",
          "state": "California"
        },
        {
          "city": "West Covina",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06720038"
    },
    {
      "nct_id": "NCT02124161",
      "title": "Concomitant Administration of 13-valent Pneumococcal Conjugate Vaccine (13vPnC) With Influenza Vaccine in 23-valent Pneumococcal Polysaccharide (23vPS) Pre-vaccinated Adults.",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "PREVENTION OF INVASIVE PNEUMOCOCCAL DISEASE"
      ],
      "interventions": [
        {
          "name": "13-valent pneumococcal conjugate vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Seasonal Inactivated Influenza Vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "OTHER"
      ],
      "sponsor": "Pfizer",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "50 Years and older"
      },
      "enrollment_count": 882,
      "start_date": "2014-09",
      "completion_date": "2015-05",
      "has_results": true,
      "last_update_posted_date": "2016-07-01",
      "last_synced_at": "2026-06-10T12:59:01.280Z",
      "location_count": 44,
      "location_summary": "Birmingham, Alabama • Huntsville, Alabama • Scottsdale, Arizona + 37 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Huntsville",
          "state": "Alabama"
        },
        {
          "city": "Scottsdale",
          "state": "Arizona"
        },
        {
          "city": "Oakland",
          "state": "California"
        },
        {
          "city": "Sacramento",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02124161"
    },
    {
      "nct_id": "NCT00955851",
      "title": "A Study To Examine Serologic Response In Hospitalized Patients Receiving Polyvalent Pneumococcal Vaccine",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Pneumonia"
      ],
      "interventions": [
        {
          "name": "Pre and post vaccination titers",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "George Washington University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 25,
      "start_date": "2009-06",
      "completion_date": "2010-07",
      "has_results": false,
      "last_update_posted_date": "2010-07-30",
      "last_synced_at": "2026-06-10T12:59:01.280Z",
      "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/NCT00955851"
    },
    {
      "nct_id": "NCT00622843",
      "title": "Pneumococcal Conjugate Vaccination in HIV in Comparison to Polysaccharide Vaccine Boosting",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "HIV Infections",
        "Streptococcus Pneumoniae"
      ],
      "interventions": [
        {
          "name": "pneumococcal conjugate vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "pneumococcal polysaccharide vaccine",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Henry M. Jackson Foundation for the Advancement of Military Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "18 Years to 60 Years"
      },
      "enrollment_count": 275,
      "start_date": "2002-12",
      "completion_date": "2013-07",
      "has_results": true,
      "last_update_posted_date": "2025-06-08",
      "last_synced_at": "2026-06-10T12:59:01.280Z",
      "location_count": 6,
      "location_summary": "San Diego, California • Washington D.C., District of Columbia • Tripler AMC, Hawaii + 3 more",
      "locations": [
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Tripler AMC",
          "state": "Hawaii"
        },
        {
          "city": "Bethesda",
          "state": "Maryland"
        },
        {
          "city": "Lackland Air Force Base",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00622843"
    },
    {
      "nct_id": "NCT03512288",
      "title": "Trial to Evaluate the Safety and Immunogenicity of a Multivalent Pneumococcal Vaccine in Healthy Infants",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Pneumococcal Infections"
      ],
      "interventions": [
        {
          "name": "Multivalent",
          "type": "BIOLOGICAL"
        },
        {
          "name": "13vPnC",
          "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": 460,
      "start_date": "2018-04-16",
      "completion_date": "2020-02-11",
      "has_results": true,
      "last_update_posted_date": "2021-03-02",
      "last_synced_at": "2026-06-10T12:59:01.280Z",
      "location_count": 39,
      "location_summary": "Fayetteville, Arkansas • Downey, California • Huntington Beach, California + 29 more",
      "locations": [
        {
          "city": "Fayetteville",
          "state": "Arkansas"
        },
        {
          "city": "Downey",
          "state": "California"
        },
        {
          "city": "Huntington Beach",
          "state": "California"
        },
        {
          "city": "Oakland",
          "state": "California"
        },
        {
          "city": "Ontario",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03512288"
    },
    {
      "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": true,
      "eligibility": {
        "minimum_age": "15 Months",
        "maximum_age": "17 Years",
        "sex": "ALL",
        "summary": "15 Months to 17 Years"
      },
      "enrollment_count": 1200,
      "start_date": "2008-12",
      "completion_date": "2010-07",
      "has_results": true,
      "last_update_posted_date": "2013-07-31",
      "last_synced_at": "2026-06-10T12:59:01.280Z",
      "location_count": 31,
      "location_summary": "Benton, Arkansas • Fayetteville, Arkansas • Jonesboro, Arkansas + 28 more",
      "locations": [
        {
          "city": "Benton",
          "state": "Arkansas"
        },
        {
          "city": "Fayetteville",
          "state": "Arkansas"
        },
        {
          "city": "Jonesboro",
          "state": "Arkansas"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Fountain Valley",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00761631"
    },
    {
      "nct_id": "NCT00772928",
      "title": "Study of the Effect of Pneumococcal Conjugate Vaccine (PCV) on Immunogenicity of Pentacel™",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Diphtheria",
        "Tetanus",
        "Haemophilus Infection",
        "Pertussis",
        "Polio"
      ],
      "interventions": [
        {
          "name": "Pentacel™: HCPDT-IPV//PRP-T Vaccine and Prevnar®",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Sanofi",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "42 Days",
        "maximum_age": "89 Days",
        "sex": "ALL",
        "summary": "42 Days to 89 Days"
      },
      "enrollment_count": 1167,
      "start_date": "2003-10",
      "completion_date": "2006-11",
      "has_results": true,
      "last_update_posted_date": "2012-02-01",
      "last_synced_at": "2026-06-10T12:59:01.280Z",
      "location_count": 23,
      "location_summary": "Montgomery, Alabama • Fayetteville, Arkansas • Jonesboro, Arkansas + 19 more",
      "locations": [
        {
          "city": "Montgomery",
          "state": "Alabama"
        },
        {
          "city": "Fayetteville",
          "state": "Arkansas"
        },
        {
          "city": "Jonesboro",
          "state": "Arkansas"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Fountain Valley",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00772928"
    }
  ]
}