{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=20-valent+pneumococcal+conjugate+vaccine+%2820vPnC%29",
    "query": {
      "intervention": "20-valent pneumococcal conjugate vaccine (20vPnC)"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 15,
    "total_pages": 2,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=20-valent+pneumococcal+conjugate+vaccine+%2820vPnC%29&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-10-09T09:41:08.741Z",
  "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": "NCT06182124",
      "title": "A Study to Learn About the Safety and Immune Response of a New Pneumococcal Vaccine in Adults",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Pneumococcal Disease"
      ],
      "interventions": [
        {
          "name": "Multivalent Pneumococcal Vaccine - Formulation 1",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Multivalent Pneumococcal Vaccine - Formulation 2",
          "type": "BIOLOGICAL"
        },
        {
          "name": "20-valent pneumococcal conjugate vaccine (20vPnC)",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Licensed pneumococcal comparator vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Multivalent Pneumococcal Vaccine - Formulation 3",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Multivalent Pneumococcal Vaccine - Formulation 4",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Pfizer",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 1710,
      "start_date": "2023-12-20",
      "completion_date": "2026-05-12",
      "has_results": false,
      "last_update_posted_date": "2026-09-25",
      "last_synced_at": "2026-10-09T09:41:08.741Z",
      "location_count": 20,
      "location_summary": "Doral, Florida • Hialeah, Florida • Stockbridge, Georgia + 13 more",
      "locations": [
        {
          "city": "Doral",
          "state": "Florida"
        },
        {
          "city": "Hialeah",
          "state": "Florida"
        },
        {
          "city": "Stockbridge",
          "state": "Georgia"
        },
        {
          "city": "Peoria",
          "state": "Illinois"
        },
        {
          "city": "New Orleans",
          "state": "Louisiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06182124"
    },
    {
      "nct_id": "NCT07086677",
      "title": "A Study to Learn About How a New Pneumococcal Vaccine Works in Adults",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Streptococcus Pneumoniae"
      ],
      "interventions": [
        {
          "name": "PG4 vaccine in Buffer 1 with low dose PA-001",
          "type": "BIOLOGICAL"
        },
        {
          "name": "PG4 in Buffer 1 with low dose PA-002",
          "type": "BIOLOGICAL"
        },
        {
          "name": "PG4 in Buffer 1 with high dose PA-001",
          "type": "BIOLOGICAL"
        },
        {
          "name": "PG4 vaccine in Buffer 1 with high dose PA-002",
          "type": "BIOLOGICAL"
        },
        {
          "name": "PG4 vaccine in Buffer 2",
          "type": "BIOLOGICAL"
        },
        {
          "name": "20-valent pneumococcal conjugate vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Saline injection",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Pfizer",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "65 Years",
        "maximum_age": "84 Years",
        "sex": "ALL",
        "summary": "65 Years to 84 Years"
      },
      "enrollment_count": 380,
      "start_date": "2025-07-22",
      "completion_date": "2027-10-21",
      "has_results": false,
      "last_update_posted_date": "2026-06-22",
      "last_synced_at": "2026-10-09T09:41:08.741Z",
      "location_count": 20,
      "location_summary": "Lake Forest, California • Rolling Hills Estates, California • Greenacres City, Florida + 13 more",
      "locations": [
        {
          "city": "Lake Forest",
          "state": "California"
        },
        {
          "city": "Rolling Hills Estates",
          "state": "California"
        },
        {
          "city": "Greenacres City",
          "state": "Florida"
        },
        {
          "city": "Miami Lakes",
          "state": "Florida"
        },
        {
          "city": "Lenexa",
          "state": "Kansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07086677"
    },
    {
      "nct_id": "NCT07794748",
      "title": "A Study to Assess the Safety, Tolerability, and Immunogenicity of 3 Lots of a Multivalent Pneumococcal Conjugate Vaccine Administered to Adults",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Pneumococcal Disease"
      ],
      "interventions": [
        {
          "name": "PG4 Multivalent Vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "20 Valent Pneumococcal Conjugate Vaccine (20vPnC)",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Pfizer",
      "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": 4670,
      "start_date": "2026-09-08",
      "completion_date": "2027-06-07",
      "has_results": false,
      "last_update_posted_date": "2026-09-23",
      "last_synced_at": "2026-10-09T09:41:08.741Z",
      "location_count": 36,
      "location_summary": "Birmingham, Alabama • Lake Forest, California • Walnut Creek, California + 28 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Lake Forest",
          "state": "California"
        },
        {
          "city": "Walnut Creek",
          "state": "California"
        },
        {
          "city": "Milford",
          "state": "Connecticut"
        },
        {
          "city": "Doral",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07794748"
    },
    {
      "nct_id": "NCT04887948",
      "title": "Safety and Immunogenicity Study of 20vPnC When Coadministered With a Booster Dose of BNT162b2",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Pneumococcal Disease",
        "COVID-19",
        "SARS-CoV-2 Infection"
      ],
      "interventions": [
        {
          "name": "20-valent pneumococcal conjugate vaccine (20vPnC)",
          "type": "BIOLOGICAL"
        },
        {
          "name": "BNT162b2",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Saline",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "OTHER"
      ],
      "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": 570,
      "start_date": "2021-05-20",
      "completion_date": "2021-12-08",
      "has_results": true,
      "last_update_posted_date": "2022-12-14",
      "last_synced_at": "2026-10-09T09:41:08.741Z",
      "location_count": 27,
      "location_summary": "Anaheim, California • Walnut Creek, California • Coral Gables, Florida + 21 more",
      "locations": [
        {
          "city": "Anaheim",
          "state": "California"
        },
        {
          "city": "Walnut Creek",
          "state": "California"
        },
        {
          "city": "Coral Gables",
          "state": "Florida"
        },
        {
          "city": "Hialeah",
          "state": "Florida"
        },
        {
          "city": "Hollywood",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04887948"
    },
    {
      "nct_id": "NCT06531538",
      "title": "A Study to Learn About How a New Pneumococcal Vaccine Works in Children",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Pneumococcal Disease"
      ],
      "interventions": [
        {
          "name": "PG4",
          "type": "BIOLOGICAL"
        },
        {
          "name": "20-valent pneumococcal conjugate vaccine (20vPnC)",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Pfizer",
      "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": 225,
      "start_date": "2024-07-30",
      "completion_date": "2026-02-09",
      "has_results": false,
      "last_update_posted_date": "2026-03-11",
      "last_synced_at": "2026-10-09T09:41:08.741Z",
      "location_count": 35,
      "location_summary": "Washington D.C., District of Columbia • Miami, Florida • Chamblee, Georgia + 18 more",
      "locations": [
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Chamblee",
          "state": "Georgia"
        },
        {
          "city": "Fayetteville",
          "state": "Georgia"
        },
        {
          "city": "Union City",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06531538"
    },
    {
      "nct_id": "NCT04642079",
      "title": "Safety and Immunogenicity Study of 20vPnC in Healthy Children 15 Months Through 17 Years of Age",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Pneumococcal Disease"
      ],
      "interventions": [
        {
          "name": "20vPnC",
          "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": 839,
      "start_date": "2020-12-04",
      "completion_date": "2022-04-06",
      "has_results": true,
      "last_update_posted_date": "2024-01-22",
      "last_synced_at": "2026-10-09T09:41:08.741Z",
      "location_count": 43,
      "location_summary": "Fayetteville, Arkansas • Jonesboro, Arkansas • San Diego, California + 30 more",
      "locations": [
        {
          "city": "Fayetteville",
          "state": "Arkansas"
        },
        {
          "city": "Jonesboro",
          "state": "Arkansas"
        },
        {
          "city": "Jonesboro",
          "state": "Arkansas"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Miami",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04642079"
    },
    {
      "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": "2026-10-09T09:41:08.741Z",
      "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": "NCT04526574",
      "title": "Safety and Immunogenicity of 20vPnC Coadministered With SIIV in Adults ≥65 Years of Age",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Pneumococcal Disease"
      ],
      "interventions": [
        {
          "name": "Experimental 20-valent pneumococcal conjugate vaccine (20vPnC)",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Saline",
          "type": "OTHER"
        },
        {
          "name": "Influenza vaccine",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "OTHER"
      ],
      "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": 1796,
      "start_date": "2020-09-01",
      "completion_date": "2021-06-29",
      "has_results": true,
      "last_update_posted_date": "2022-07-08",
      "last_synced_at": "2026-10-09T09:41:08.741Z",
      "location_count": 63,
      "location_summary": "Mobile, Alabama • Chandler, Arizona • Phoenix, Arizona + 53 more",
      "locations": [
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Chandler",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Redding",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04526574"
    },
    {
      "nct_id": "NCT05452941",
      "title": "A Study to Learn About How 20-Valent Pneumococcal Conjugate Vaccine Works in a Real-world Setting",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Pneumonia"
      ],
      "interventions": [
        {
          "name": "Diagnostic test on urine samples",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "Pfizer",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "65 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "65 Years and older"
      },
      "enrollment_count": 12500,
      "start_date": "2022-10-27",
      "completion_date": "2027-06-04",
      "has_results": false,
      "last_update_posted_date": "2026-05-11",
      "last_synced_at": "2026-10-09T09:41:08.741Z",
      "location_count": 40,
      "location_summary": "El Centro, California • Fontana, California • Los Angeles, California + 25 more",
      "locations": [
        {
          "city": "El Centro",
          "state": "California"
        },
        {
          "city": "Fontana",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Oakland",
          "state": "California"
        },
        {
          "city": "Oakland",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05452941"
    },
    {
      "nct_id": "NCT03828617",
      "title": "Trial to Evaluate the Safety and Immunogenicity of 3 Lots of 20-valent Pneumococcal Conjugate Vaccine in Pneumococcal Vaccine-Naïve Adults",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Pneumococcal Disease"
      ],
      "interventions": [
        {
          "name": "20vPnC",
          "type": "BIOLOGICAL"
        },
        {
          "name": "13vPnC",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Pfizer",
      "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": 1710,
      "start_date": "2019-02-14",
      "completion_date": "2019-10-09",
      "has_results": true,
      "last_update_posted_date": "2020-11-23",
      "last_synced_at": "2026-10-09T09:41:08.741Z",
      "location_count": 21,
      "location_summary": "Anaheim, California • Sacramento, California • San Jose, California + 16 more",
      "locations": [
        {
          "city": "Anaheim",
          "state": "California"
        },
        {
          "city": "Sacramento",
          "state": "California"
        },
        {
          "city": "Sacramento",
          "state": "California"
        },
        {
          "city": "San Jose",
          "state": "California"
        },
        {
          "city": "Santa Clara",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03828617"
    }
  ]
}