{ "api_version": "1", "request": { "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Pneumococcal+polysaccharide+vaccination", "query": { "intervention": "Pneumococcal polysaccharide vaccination" }, "page_size": 10 }, "pagination": { "page": 1, "page_size": 10, "total_count": 45, "total_pages": 5, "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Pneumococcal+polysaccharide+vaccination&page=2&page_size=10", "previous_page_url": null }, "source": "remote", "last_synced_at": "2026-09-19T08:52:36.747Z", "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": "NCT00706550", "title": "Immune Responses to Pneumococcal Vaccination Among HIV-infected Subjects", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "NA" ], "conditions": [ "HIV Infections" ], "interventions": [ { "name": "(PV) 23-valent pneumococcal polysaccharide vaccine", "type": "BIOLOGICAL" }, { "name": "Placebo", "type": "BIOLOGICAL" } ], "intervention_types": [ "BIOLOGICAL" ], "sponsor": "US Department of Veterans Affairs", "sponsor_class": "FED", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 107, "start_date": "2008-10", "completion_date": "2012-09", "has_results": true, "last_update_posted_date": "2014-04-24", "last_synced_at": "2026-09-19T08:52:36.747Z", "location_count": 1, "location_summary": "Houston, Texas", "locations": [ { "city": "Houston", "state": "Texas" } ], "official_url": "https://clinicaltrials.gov/study/NCT00706550" }, { "nct_id": "NCT03692871", "title": "A Study to Evaluate the Safety and Tolerability of V114 and Prevnar 13™ in Healthy Infants (V114-031/PNEU-LINK)", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE3" ], "conditions": [ "Pneumococcal Infections" ], "interventions": [ { "name": "V114", "type": "BIOLOGICAL" }, { "name": "Prevnar 13™", "type": "BIOLOGICAL" } ], "intervention_types": [ "BIOLOGICAL" ], "sponsor": "Merck Sharp & Dohme LLC", "sponsor_class": "INDUSTRY", "healthy_volunteers": true, "eligibility": { "minimum_age": "42 Days", "maximum_age": "90 Days", "sex": "ALL", "summary": "42 Days to 90 Days" }, "enrollment_count": 2409, "start_date": "2018-12-14", "completion_date": "2021-03-26", "has_results": true, "last_update_posted_date": "2023-07-28", "last_synced_at": "2026-09-19T08:52:36.747Z", "location_count": 22, "location_summary": "Downey, California • Huntington Beach, California • San Diego, California + 18 more", "locations": [ { "city": "Downey", "state": "California" }, { "city": "Huntington Beach", "state": "California" }, { "city": "San Diego", "state": "California" }, { "city": "San Jose", "state": "California" }, { "city": "Santa Clara", "state": "California" } ], "official_url": "https://clinicaltrials.gov/study/NCT03692871" }, { "nct_id": "NCT01000974", "title": "Consistency & Immunogenicity Study of 3 Lots of GSK's Hib Conjugate Vaccine Versus ActHIB & Pentacel in Healthy Infants", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE3" ], "conditions": [ "Haemophilus Influenzae Type b" ], "interventions": [ { "name": "GSK Biologicals' Haemophilus influenzae type b vaccine (GSK 208108)", "type": "BIOLOGICAL" }, { "name": "ActHIB™", "type": "BIOLOGICAL" }, { "name": "Pentacel™", "type": "BIOLOGICAL" }, { "name": "Pediarix™", "type": "BIOLOGICAL" }, { "name": "Prevnar 13™", "type": "BIOLOGICAL" }, { "name": "Rotarix™", "type": "BIOLOGICAL" }, { "name": "Engerix™-B", "type": "BIOLOGICAL" }, { "name": "Infanrix™", "type": "BIOLOGICAL" } ], "intervention_types": [ "BIOLOGICAL" ], "sponsor": "GlaxoSmithKline", "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": 4003, "start_date": "2010-06-18", "completion_date": "2013-07-17", "has_results": true, "last_update_posted_date": "2018-07-12", "last_synced_at": "2026-09-19T08:52:36.747Z", "location_count": 63, "location_summary": "Dothan, Alabama • Benton, Arkansas • Fayetteville, Arkansas + 59 more", "locations": [ { "city": "Dothan", "state": "Alabama" }, { "city": "Benton", "state": "Arkansas" }, { "city": "Fayetteville", "state": "Arkansas" }, { "city": "Jonesboro", "state": "Arkansas" }, { "city": "Little Rock", "state": "Arkansas" } ], "official_url": "https://clinicaltrials.gov/study/NCT01000974" }, { "nct_id": "NCT01545375", "title": "Evaluation of a Vaccine for Reducing Ear and Lung Infections in Children", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE2" ], "conditions": [ "Infections, Streptococcal" ], "interventions": [ { "name": "Pneumococcal vaccine GSK2189242A", "type": "BIOLOGICAL" }, { "name": "Placebo", "type": "BIOLOGICAL" }, { "name": "Prevnar 13®", "type": "BIOLOGICAL" }, { "name": "PedvaxHIB®", "type": "BIOLOGICAL" } ], "intervention_types": [ "BIOLOGICAL" ], "sponsor": "GlaxoSmithKline", "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": 1806, "start_date": "2012-05-21", "completion_date": "2016-07-26", "has_results": true, "last_update_posted_date": "2019-12-27", "last_synced_at": "2026-09-19T08:52:36.747Z", "location_count": 5, "location_summary": "Chinle, Arizona • Fort Defiance, Arizona • Whiteriver, Arizona + 2 more", "locations": [ { "city": "Chinle", "state": "Arizona" }, { "city": "Fort Defiance", "state": "Arizona" }, { "city": "Whiteriver", "state": "Arizona" }, { "city": "Gallup", "state": "New Mexico" }, { "city": "Shiprock", "state": "New Mexico" } ], "official_url": "https://clinicaltrials.gov/study/NCT01545375" }, { "nct_id": "NCT05095844", "title": "National Vaccine Adverse Event Reporting Survey and Etiology", "overall_status": "UNKNOWN", "study_type": "OBSERVATIONAL", "phases": [], "conditions": [ "COVID-19", "Vaccine Adverse Reaction", "Vaccine Reaction", "Vaccine or Biological Substance, Unspecified Causing Adverse Effects in Therapeutic Use", "Corona Virus Infection", "Blood Clot", "Thrombocytopenia", "Neuritis", "Vasculitis", "Influenza", "Guillain-Barré", "GWAS", "Genetic Sequencing" ], "interventions": [ { "name": "vaccinated", "type": "BIOLOGICAL" } ], "intervention_types": [ "BIOLOGICAL" ], "sponsor": "Neuroganics LLC", "sponsor_class": "INDUSTRY", "healthy_volunteers": false, "eligibility": { "minimum_age": "5 Years", "maximum_age": "99 Years", "sex": "ALL", "summary": "5 Years to 99 Years" }, "enrollment_count": 100000, "start_date": "2022-03-15", "completion_date": "2024-04-01", "has_results": false, "last_update_posted_date": "2022-03-18", "last_synced_at": "2026-09-19T08:52:36.747Z", "location_count": 1, "location_summary": "Northglenn, Colorado", "locations": [ { "city": "Northglenn", "state": "Colorado" } ], "official_url": "https://clinicaltrials.gov/study/NCT05095844" }, { "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": "2026-09-19T08:52:36.747Z", "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": "NCT03802994", "title": "Pneumococcal Conjugate Vaccine in Aging Renal Transplant", "overall_status": "TERMINATED", "study_type": "INTERVENTIONAL", "phases": [ "EARLY_PHASE1" ], "conditions": [ "Renal Transplantation", "Aging" ], "interventions": [ { "name": "23 valent pneumococcal polysaccharide vaccine", "type": "DRUG" }, { "name": "13 valent conjugated pneumococcal vaccine", "type": "BIOLOGICAL" }, { "name": "Peripheral blood sample", "type": "OTHER" } ], "intervention_types": [ "DRUG", "BIOLOGICAL", "OTHER" ], "sponsor": "VA Office of Research and Development", "sponsor_class": "FED", "healthy_volunteers": true, "eligibility": { "minimum_age": "35 Years", "maximum_age": "75 Years", "sex": "ALL", "summary": "35 Years to 75 Years" }, "enrollment_count": 57, "start_date": "2018-11-01", "completion_date": "2020-02-28", "has_results": true, "last_update_posted_date": "2021-04-30", "last_synced_at": "2026-09-19T08:52:36.747Z", "location_count": 2, "location_summary": "Charleston, South Carolina", "locations": [ { "city": "Charleston", "state": "South Carolina" }, { "city": "Charleston", "state": "South Carolina" } ], "official_url": "https://clinicaltrials.gov/study/NCT03802994" }, { "nct_id": "NCT03039491", "title": "Immune Response to Pneumococcal Vaccination in Aging HIV Positive Adults", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "EARLY_PHASE1" ], "conditions": [ "HIV Lipodystrophy", "Aging" ], "interventions": [ { "name": "Pneumococcal polysaccharide vaccine 23 valent", "type": "BIOLOGICAL" }, { "name": "13 valent conjugated pneumococcal vaccine", "type": "BIOLOGICAL" } ], "intervention_types": [ "BIOLOGICAL" ], "sponsor": "Medical University of South Carolina", "sponsor_class": "OTHER", "healthy_volunteers": true, "eligibility": { "minimum_age": "21 Years", "maximum_age": "65 Years", "sex": "ALL", "summary": "21 Years to 65 Years" }, "enrollment_count": 160, "start_date": "2015-09-01", "completion_date": "2020-03-30", "has_results": false, "last_update_posted_date": "2020-06-16", "last_synced_at": "2026-09-19T08:52:36.747Z", "location_count": 1, "location_summary": "Charleston, South Carolina", "locations": [ { "city": "Charleston", "state": "South Carolina" } ], "official_url": "https://clinicaltrials.gov/study/NCT03039491" }, { "nct_id": "NCT02515240", "title": "Immune Response to Pneumococcal Vaccination in HIV Infected Individuals", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "EARLY_PHASE1" ], "conditions": [ "Pneumococcal Infection" ], "interventions": [ { "name": "PPV23", "type": "BIOLOGICAL" } ], "intervention_types": [ "BIOLOGICAL" ], "sponsor": "University of Toledo Health Science Campus", "sponsor_class": "OTHER", "healthy_volunteers": true, "eligibility": { "minimum_age": "19 Years", "maximum_age": "65 Years", "sex": "ALL", "summary": "19 Years to 65 Years" }, "enrollment_count": 124, "start_date": "2010-07", "completion_date": "2015-03", "has_results": false, "last_update_posted_date": "2015-08-07", "last_synced_at": "2026-09-19T08:52:36.747Z", "location_count": 1, "location_summary": "Toledo, Ohio", "locations": [ { "city": "Toledo", "state": "Ohio" } ], "official_url": "https://clinicaltrials.gov/study/NCT02515240" }, { "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": "2026-09-19T08:52:36.747Z", "location_count": 2, "location_summary": "Seattle, Washington", "locations": [ { "city": "Seattle", "state": "Washington" }, { "city": "Seattle", "state": "Washington" } ], "official_url": "https://clinicaltrials.gov/study/NCT00169234" } ] }