{ "api_version": "1", "request": { "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=meningococcal+polysaccharide+diphtheria+conjugate+vaccine+%28quadrivalent%29", "query": { "intervention": "meningococcal polysaccharide diphtheria conjugate vaccine (quadrivalent)" }, "page_size": 10 }, "pagination": { "page": 1, "page_size": 10, "total_count": 14, "total_pages": 2, "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=meningococcal+polysaccharide+diphtheria+conjugate+vaccine+%28quadrivalent%29&page=2&page_size=10", "previous_page_url": null }, "source": "remote", "last_synced_at": "2026-10-09T20:07:21.900Z", "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": "NCT00459316", "title": "Safety of and Immune Response to a Meningitis Vaccine in HIV-Infected Children and Youth", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE1", "PHASE2" ], "conditions": [ "HIV Infections", "Meningitis" ], "interventions": [ { "name": "Quadrivalent meningococcal conjugate vaccine", "type": "BIOLOGICAL" } ], "intervention_types": [ "BIOLOGICAL" ], "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)", "sponsor_class": "NIH", "healthy_volunteers": false, "eligibility": { "minimum_age": "2 Years", "maximum_age": "24 Years", "sex": "ALL", "summary": "2 Years to 24 Years" }, "enrollment_count": 384, "start_date": "2007-06", "completion_date": "2013-03", "has_results": true, "last_update_posted_date": "2021-11-03", "last_synced_at": "2026-10-09T20:07:21.900Z", "location_count": 35, "location_summary": "Alhambra, California • Long Beach, California • Los Angeles, California + 25 more", "locations": [ { "city": "Alhambra", "state": "California" }, { "city": "Long Beach", "state": "California" }, { "city": "Los Angeles", "state": "California" }, { "city": "Los Angeles", "state": "California" }, { "city": "San Diego", "state": "California" } ], "official_url": "https://clinicaltrials.gov/study/NCT00459316" }, { "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": "2026-10-09T20:07:21.900Z", "location_count": 1, "location_summary": "Northglenn, Colorado", "locations": [ { "city": "Northglenn", "state": "Colorado" } ], "official_url": "https://clinicaltrials.gov/study/NCT05095844" }, { "nct_id": "NCT02752906", "title": "Immunogenicity and Safety of a Booster Dose of an Investigational Quadrivalent Meningococcal Conjugate Vaccine", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE3" ], "conditions": [ "Meningitis", "Meningococcal Meningitis", "Meningococcal Infections" ], "interventions": [ { "name": "Meningococcal Polysaccharide (Serogroups A, C, Y, and W) Tetanus Toxoid Conjugate Vaccine", "type": "BIOLOGICAL" }, { "name": "Meningococcal (Groups A, C, Y and W 135) Polysaccharide Diphtheria Toxoid Conjugate Vaccine", "type": "BIOLOGICAL" } ], "intervention_types": [ "BIOLOGICAL" ], "sponsor": "Sanofi Pasteur, a Sanofi Company", "sponsor_class": "INDUSTRY", "healthy_volunteers": true, "eligibility": { "minimum_age": "15 Years", "maximum_age": null, "sex": "ALL", "summary": "15 Years and older" }, "enrollment_count": 810, "start_date": "2016-04-15", "completion_date": "2016-12-19", "has_results": true, "last_update_posted_date": "2022-04-05", "last_synced_at": "2026-10-09T20:07:21.900Z", "location_count": 29, "location_summary": "Birmingham, Alabama • Dothan, Alabama • Mesa, Arizona + 24 more", "locations": [ { "city": "Birmingham", "state": "Alabama" }, { "city": "Dothan", "state": "Alabama" }, { "city": "Mesa", "state": "Arizona" }, { "city": "Jonesboro", "state": "Arkansas" }, { "city": "Downey", "state": "California" } ], "official_url": "https://clinicaltrials.gov/study/NCT02752906" }, { "nct_id": "NCT03537508", "title": "Immunogenicity and Safety of a Quadrivalent Meningococcal Conjugate Vaccine When Administered Concomitantly With Routine Pediatric Vaccines in Healthy Infants and Toddlers in the US", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE3" ], "conditions": [ "Healthy Volunteers (Meningococcal Infection)" ], "interventions": [ { "name": "MenACYW conjugate vaccine", "type": "BIOLOGICAL" }, { "name": "MenACYW-135 conjugate vaccine", "type": "BIOLOGICAL" }, { "name": "DTaP-IPV//Hib vaccine", "type": "BIOLOGICAL" }, { "name": "Pneumococcal 13-valent conjugate vaccine", "type": "BIOLOGICAL" }, { "name": "Pentavalent rotavirus vaccine", "type": "BIOLOGICAL" }, { "name": "Hepatitis B vaccine", "type": "BIOLOGICAL" }, { "name": "Measles, mumps, rubella (MMR) vaccine", "type": "BIOLOGICAL" }, { "name": "Varicella vaccine", "type": "BIOLOGICAL" }, { "name": "Hepatitis A vaccine", "type": "BIOLOGICAL" } ], "intervention_types": [ "BIOLOGICAL" ], "sponsor": "Sanofi Pasteur, a Sanofi Company", "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": 2627, "start_date": "2018-04-25", "completion_date": "2023-09-22", "has_results": true, "last_update_posted_date": "2024-10-15", "last_synced_at": "2026-10-09T20:07:21.900Z", "location_count": 65, "location_summary": "Birmingham, Alabama • Dothan, Alabama • Phoenix, Arizona + 54 more", "locations": [ { "city": "Birmingham", "state": "Alabama" }, { "city": "Dothan", "state": "Alabama" }, { "city": "Phoenix", "state": "Arizona" }, { "city": "Fayetteville", "state": "Arkansas" }, { "city": "Jonesboro", "state": "Arkansas" } ], "official_url": "https://clinicaltrials.gov/study/NCT03537508" }, { "nct_id": "NCT02500511", "title": "Persistence of Protective Antibody Titers 12-24 Months After NmVac4-A/C/Y/W-135-DT Vaccination: Follow Up Study", "overall_status": "COMPLETED", "study_type": "OBSERVATIONAL", "phases": [], "conditions": [ "Meningococcal Meningitis", "Meningococcal Infections" ], "interventions": [ { "name": "NmVac4-A/C/Y/W-135-DT™", "type": "BIOLOGICAL" } ], "intervention_types": [ "BIOLOGICAL" ], "sponsor": "JN-International Medical Corporation", "sponsor_class": "INDUSTRY", "healthy_volunteers": true, "eligibility": { "minimum_age": "18 Years", "maximum_age": "55 Years", "sex": "ALL", "summary": "18 Years to 55 Years" }, "enrollment_count": 50, "start_date": "2015-06", "completion_date": "2015-09", "has_results": false, "last_update_posted_date": "2016-04-12", "last_synced_at": "2026-10-09T20:07:21.900Z", "location_count": 1, "location_summary": "Towson, Maryland", "locations": [ { "city": "Towson", "state": "Maryland" } ], "official_url": "https://clinicaltrials.gov/study/NCT02500511" }, { "nct_id": "NCT02199691", "title": "Immunogenicity and Safety of an Investigational Quadrivalent Meningococcal Conjugate Vaccine in Healthy Adolescents", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE2" ], "conditions": [ "Meningitis", "Meningococcal Meningitis", "Meningococcal Infections" ], "interventions": [ { "name": "Meningococcal Polysaccharide (Serogroups A, C, Y, and W135) Tetanus Toxoid Conjugate Vaccine", "type": "BIOLOGICAL" }, { "name": "Meningococcal (Groups A, C, Y and W135) Oligosaccharide Diphtheria CRM197 Conjugate Vaccine", "type": "BIOLOGICAL" }, { "name": "Adacel®: Tetanus Toxoid, Reduced Diphtheria Toxoid and Acellular Pertussis Vaccine Adsorbed", "type": "BIOLOGICAL" }, { "name": "GARDASIL®: Human Papillomavirus Quadrivalent (Types 6, 11, 16, and 18) Vaccine, Recombinant", "type": "BIOLOGICAL" } ], "intervention_types": [ "BIOLOGICAL" ], "sponsor": "Sanofi Pasteur, a Sanofi Company", "sponsor_class": "INDUSTRY", "healthy_volunteers": true, "eligibility": { "minimum_age": "10 Years", "maximum_age": "17 Years", "sex": "ALL", "summary": "10 Years to 17 Years" }, "enrollment_count": 1715, "start_date": "2014-07-22", "completion_date": "2015-10-02", "has_results": true, "last_update_posted_date": "2022-04-04", "last_synced_at": "2026-10-09T20:07:21.900Z", "location_count": 35, "location_summary": "Birmingham, Alabama • Huntsville, Alabama • Downey, California + 28 more", "locations": [ { "city": "Birmingham", "state": "Alabama" }, { "city": "Huntsville", "state": "Alabama" }, { "city": "Downey", "state": "California" }, { "city": "San Diego", "state": "California" }, { "city": "Miami Beach", "state": "Florida" } ], "official_url": "https://clinicaltrials.gov/study/NCT02199691" }, { "nct_id": "NCT01049035", "title": "A Study of a Quadrivalent Meningococcal Tetanus Protein Conjugate Vaccine in Infants and Toddlers", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE2" ], "conditions": [ "Meningitis", "Meningococcal Infection" ], "interventions": [ { "name": "Quadrivalent Meningococcal Polysaccharide (A, C, Y, and W-135) Tetanus Protein Conjugate", "type": "BIOLOGICAL" }, { "name": "Diphtheria and Tetanus Toxoids and Acellular Pertussis Adsorbed, Inactivated Poliovirus and Haemophilus B Conjugate (Tetanus Toxoid Conjugate) Vaccine Combined (DTaP-IPV/Hib combined)", "type": "BIOLOGICAL" }, { "name": "M-M-RII-Measles, Mumps, and Rubella Virus Vaccine Live", "type": "BIOLOGICAL" }, { "name": "Varicella Virus Vaccine Live", "type": "BIOLOGICAL" }, { "name": "Pneumococcal 7-valent Conjugate Vaccine (Diphtheria CRM197 Protein)", "type": "BIOLOGICAL" }, { "name": "Pneumococcal 13-valent Conjugate Vaccine (Diphtheria CRM197 Protein)", "type": "BIOLOGICAL" }, { "name": "Rotavirus Vaccine", "type": "BIOLOGICAL" }, { "name": "Hepatitis B Vaccine", "type": "BIOLOGICAL" } ], "intervention_types": [ "BIOLOGICAL" ], "sponsor": "Sanofi Pasteur, a Sanofi Company", "sponsor_class": "INDUSTRY", "healthy_volunteers": true, "eligibility": { "minimum_age": "42 Days", "maximum_age": "365 Days", "sex": "ALL", "summary": "42 Days to 365 Days" }, "enrollment_count": 580, "start_date": "2009-12-16", "completion_date": "2012-02-13", "has_results": true, "last_update_posted_date": "2022-03-28", "last_synced_at": "2026-10-09T20:07:21.900Z", "location_count": 25, "location_summary": "Birmingham, Alabama • Tuscaloosa, Alabama • Jonesboro, Arkansas + 20 more", "locations": [ { "city": "Birmingham", "state": "Alabama" }, { "city": "Tuscaloosa", "state": "Alabama" }, { "city": "Jonesboro", "state": "Arkansas" }, { "city": "Little Rock", "state": "Arkansas" }, { "city": "Fountain Valley", "state": "California" } ], "official_url": "https://clinicaltrials.gov/study/NCT01049035" }, { "nct_id": "NCT01482052", "title": "Safety Study of Group A, C, Y & W-135 Meningococcal Polysaccharide Diphtheria Toxoid Conjugate Vaccine for Meningitis", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE1" ], "conditions": [ "Meningococcal Meningitis", "Meningococcal Infections" ], "interventions": [ { "name": "meningococcal meningitis conjugate vaccine, quadrivalent", "type": "BIOLOGICAL" } ], "intervention_types": [ "BIOLOGICAL" ], "sponsor": "JN-International Medical Corporation", "sponsor_class": "INDUSTRY", "healthy_volunteers": true, "eligibility": { "minimum_age": "18 Years", "maximum_age": "50 Years", "sex": "ALL", "summary": "18 Years to 50 Years" }, "enrollment_count": 60, "start_date": "2011-11", "completion_date": "2013-01", "has_results": false, "last_update_posted_date": "2013-01-14", "last_synced_at": "2026-10-09T20:07:21.900Z", "location_count": 1, "location_summary": "Hanford, California", "locations": [ { "city": "Hanford", "state": "California" } ], "official_url": "https://clinicaltrials.gov/study/NCT01482052" }, { "nct_id": "NCT03077438", "title": "Study of an Investigational Quadrivalent Meningococcal Conjugate Vaccine Administered in Children Aged 2 to 9 Years", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE3" ], "conditions": [ "Meningitis", "Meningococcal Meningitis", "Meningococcal Infections" ], "interventions": [ { "name": "Meningococcal Polysaccharide (Serogroups A, C, Y, and W) Tetanus Toxoid Conjugate", "type": "BIOLOGICAL" }, { "name": "Meningococcal (Groups A, C, Y and W 135) Oligosaccharide Diphtheria CRM197 Conjugate Vaccine", "type": "BIOLOGICAL" } ], "intervention_types": [ "BIOLOGICAL" ], "sponsor": "Sanofi Pasteur, a Sanofi Company", "sponsor_class": "INDUSTRY", "healthy_volunteers": true, "eligibility": { "minimum_age": "2 Years", "maximum_age": "9 Years", "sex": "ALL", "summary": "2 Years to 9 Years" }, "enrollment_count": 1000, "start_date": "2017-02-17", "completion_date": "2017-10-10", "has_results": true, "last_update_posted_date": "2022-03-28", "last_synced_at": "2026-10-09T20:07:21.900Z", "location_count": 35, "location_summary": "Birmingham, Alabama • Dothan, Alabama • Tucson, Arizona + 31 more", "locations": [ { "city": "Birmingham", "state": "Alabama" }, { "city": "Dothan", "state": "Alabama" }, { "city": "Tucson", "state": "Arizona" }, { "city": "Jonesboro", "state": "Arkansas" }, { "city": "Anaheim", "state": "California" } ], "official_url": "https://clinicaltrials.gov/study/NCT03077438" }, { "nct_id": "NCT01897402", "title": "Immunogenicity and Safety of Group A, C, Y & W-135 Meningococcal Polysaccharide Diphtheria Toxoid Conjugate Vaccine", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE2" ], "conditions": [ "Meningococcal Meningitis", "Meningococcal Infections" ], "interventions": [ { "name": "Test Vaccine", "type": "BIOLOGICAL" }, { "name": "US Licensed Vaccine", "type": "BIOLOGICAL" } ], "intervention_types": [ "BIOLOGICAL" ], "sponsor": "JN-International Medical Corporation", "sponsor_class": "INDUSTRY", "healthy_volunteers": true, "eligibility": { "minimum_age": "18 Years", "maximum_age": "55 Years", "sex": "ALL", "summary": "18 Years to 55 Years" }, "enrollment_count": 525, "start_date": "2013-07", "completion_date": "2014-12", "has_results": true, "last_update_posted_date": "2015-04-23", "last_synced_at": "2026-10-09T20:07:21.900Z", "location_count": 3, "location_summary": "Greenbelt, Maryland • Pasadena, Maryland • Towson, Maryland", "locations": [ { "city": "Greenbelt", "state": "Maryland" }, { "city": "Pasadena", "state": "Maryland" }, { "city": "Towson", "state": "Maryland" } ], "official_url": "https://clinicaltrials.gov/study/NCT01897402" } ] }