{ "api_version": "1", "request": { "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Pneumococcal+20-valent+Conjugate+Vaccine", "query": { "intervention": "Pneumococcal 20-valent Conjugate Vaccine" }, "page_size": 10 }, "pagination": { "page": 1, "page_size": 10, "total_count": 56, "total_pages": 6, "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Pneumococcal+20-valent+Conjugate+Vaccine&page=2&page_size=10", "previous_page_url": null }, "source": "remote", "last_synced_at": "2026-10-02T10:22:51.526Z", "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": "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": "2026-10-02T10:22:51.526Z", "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": "NCT06151288", "title": "Safety, Tolerability, and Immunogenicity Study of a 31-Valent Pneumococcal Conjugate Vaccine (VAX-31) in Adults", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE1", "PHASE2" ], "conditions": [ "Pneumococcal Vaccines" ], "interventions": [ { "name": "31 valent pneumococcal conjugate vaccine", "type": "BIOLOGICAL" }, { "name": "20 valent pneumococcal conjugate vaccine", "type": "BIOLOGICAL" } ], "intervention_types": [ "BIOLOGICAL" ], "sponsor": "Vaxcyte, Inc.", "sponsor_class": "INDUSTRY", "healthy_volunteers": true, "eligibility": { "minimum_age": "50 Years", "maximum_age": null, "sex": "ALL", "summary": "50 Years and older" }, "enrollment_count": 1015, "start_date": "2023-11-08", "completion_date": "2024-07-17", "has_results": true, "last_update_posted_date": "2025-07-28", "last_synced_at": "2026-10-02T10:22:51.526Z", "location_count": 25, "location_summary": "Mobile, Alabama • Phoenix, Arizona • Hollywood, Florida + 22 more", "locations": [ { "city": "Mobile", "state": "Alabama" }, { "city": "Phoenix", "state": "Arizona" }, { "city": "Hollywood", "state": "Florida" }, { "city": "Jupiter", "state": "Florida" }, { "city": "Melbourne", "state": "Florida" } ], "official_url": "https://clinicaltrials.gov/study/NCT06151288" }, { "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": "2026-10-02T10:22:51.526Z", "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": "NCT03480802", "title": "A Study to Evaluate the Safety, Tolerability, and Immunogenicity of V114 Followed by PNEUMOVAX™23 in Adults Infected With Human Immunodeficiency Virus (HIV) (V114-018)", "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": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 302, "start_date": "2018-07-06", "completion_date": "2020-01-17", "has_results": true, "last_update_posted_date": "2022-05-05", "last_synced_at": "2026-10-02T10:22:51.526Z", "location_count": 4, "location_summary": "Orlando, Florida • West Palm Beach, Florida • Houston, Texas", "locations": [ { "city": "Orlando", "state": "Florida" }, { "city": "West Palm Beach", "state": "Florida" }, { "city": "Houston", "state": "Texas" }, { "city": "Houston", "state": "Texas" } ], "official_url": "https://clinicaltrials.gov/study/NCT03480802" }, { "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": "2026-10-02T10:22:51.526Z", "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" }, { "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": "2026-10-02T10:22:51.526Z", "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": "NCT05464420", "title": "A Study to Evaluate the Safety, Tolerability, Immunogenicity, and Lot Consistency of V116 in Adults 18 to 49 Years of Age (V116-004, STRIDE-4)", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE3" ], "conditions": [ "Pneumococcal Disease" ], "interventions": [ { "name": "V116", "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": "49 Years", "sex": "ALL", "summary": "18 Years to 49 Years" }, "enrollment_count": 2162, "start_date": "2022-08-12", "completion_date": "2023-05-25", "has_results": true, "last_update_posted_date": "2024-09-24", "last_synced_at": "2026-10-02T10:22:51.526Z", "location_count": 30, "location_summary": "Mesa, Arizona • Tempe, Arizona • Little Rock, Arkansas + 27 more", "locations": [ { "city": "Mesa", "state": "Arizona" }, { "city": "Tempe", "state": "Arizona" }, { "city": "Little Rock", "state": "Arkansas" }, { "city": "Northridge", "state": "California" }, { "city": "San Diego", "state": "California" } ], "official_url": "https://clinicaltrials.gov/study/NCT05464420" }, { "nct_id": "NCT06824181", "title": "Study of Mixed Vaccination Schedules With a 21-valent Pneumococcal Conjugate Vaccine and a 20-valent Pneumococcal Conjugate Vaccine in Healthy Infants From Approximately 2 Months of Age", "overall_status": "ACTIVE_NOT_RECRUITING", "study_type": "INTERVENTIONAL", "phases": [ "PHASE3" ], "conditions": [ "Pneumococcal Immunization" ], "interventions": [ { "name": "PCV21 vaccine", "type": "BIOLOGICAL" }, { "name": "Prevnar 20 vaccine", "type": "BIOLOGICAL" }, { "name": "M-M-R II vaccine", "type": "BIOLOGICAL" }, { "name": "Rotarix", "type": "BIOLOGICAL" }, { "name": "RotaTeq", "type": "BIOLOGICAL" }, { "name": "Vaxelis vaccine", "type": "BIOLOGICAL" }, { "name": "Varivax", "type": "BIOLOGICAL" }, { "name": "Priorix", "type": "BIOLOGICAL" }, { "name": "VAQTA", "type": "BIOLOGICAL" }, { "name": "Havrix", "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": 580, "start_date": "2025-02-27", "completion_date": "2027-09-10", "has_results": false, "last_update_posted_date": "2026-02-13", "last_synced_at": "2026-10-02T10:22:51.526Z", "location_count": 17, "location_summary": "Los Angeles, California • Hollywood, Florida • Miami, Florida + 13 more", "locations": [ { "city": "Los Angeles", "state": "California" }, { "city": "Hollywood", "state": "Florida" }, { "city": "Miami", "state": "Florida" }, { "city": "Miami", "state": "Florida" }, { "city": "Sioux City", "state": "Iowa" } ], "official_url": "https://clinicaltrials.gov/study/NCT06824181" }, { "nct_id": "NCT07629440", "title": "A Study to Learn About How a New Pneumococcal Vaccine Works in Infants.", "overall_status": "RECRUITING", "study_type": "INTERVENTIONAL", "phases": [ "PHASE3" ], "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": "42 Days", "maximum_age": "211 Days", "sex": "ALL", "summary": "42 Days to 211 Days" }, "enrollment_count": 3230, "start_date": "2026-05-29", "completion_date": "2029-06-05", "has_results": false, "last_update_posted_date": "2026-09-08", "last_synced_at": "2026-10-02T10:22:51.526Z", "location_count": 106, "location_summary": "Bessemer, Alabama • Birmingham, Alabama • Centreville, Alabama + 75 more", "locations": [ { "city": "Bessemer", "state": "Alabama" }, { "city": "Birmingham", "state": "Alabama" }, { "city": "Birmingham", "state": "Alabama" }, { "city": "Centreville", "state": "Alabama" }, { "city": "Fayetteville", "state": "Arkansas" } ], "official_url": "https://clinicaltrials.gov/study/NCT07629440" }, { "nct_id": "NCT06524414", "title": "A Study to Learn About How a New Pneumococcal Vaccine Works in Infants", "overall_status": "ACTIVE_NOT_RECRUITING", "study_type": "INTERVENTIONAL", "phases": [ "PHASE2" ], "conditions": [ "Pneumococcal Disease" ], "interventions": [ { "name": "PG4", "type": "BIOLOGICAL" }, { "name": "20-valent pneumococcal conjugate vaccine (20vPnC)", "type": "BIOLOGICAL" }, { "name": "15-valent pneumococcal conjugate vaccine (PCV15)", "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": 605, "start_date": "2024-07-25", "completion_date": "2027-05-01", "has_results": false, "last_update_posted_date": "2026-09-03", "last_synced_at": "2026-10-02T10:22:51.526Z", "location_count": 61, "location_summary": "Fayetteville, Arkansas • Jonesboro, Arkansas • La Puente, California + 39 more", "locations": [ { "city": "Fayetteville", "state": "Arkansas" }, { "city": "Jonesboro", "state": "Arkansas" }, { "city": "La Puente", "state": "California" }, { "city": "West Covina", "state": "California" }, { "city": "Washington D.C.", "state": "District of Columbia" } ], "official_url": "https://clinicaltrials.gov/study/NCT06524414" } ] }