{ "api_version": "1", "request": { "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Hepatitis+A+Vaccine&page=5", "query": { "intervention": "Hepatitis A Vaccine", "page": 5 }, "page_size": 10 }, "pagination": { "page": 5, "page_size": 10, "total_count": 136, "total_pages": 14, "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Hepatitis+A+Vaccine&page=6&page_size=10", "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Hepatitis+A+Vaccine&page=4&page_size=10" }, "source": "remote", "last_synced_at": "2026-10-07T16:11:51.271Z", "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": "NCT05084508", "title": "A Study on the Immune Response and Safety of Various Potencies of an Investigational Chickenpox Vaccine Compared With a Marketed Chickenpox Vaccine, Given to Healthy Children 12 to 15 Months of Age", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE2" ], "conditions": [ "Chickenpox" ], "interventions": [ { "name": "Investigational varicella vaccine low potency", "type": "BIOLOGICAL" }, { "name": "Investigational varicella vaccine medium potency", "type": "BIOLOGICAL" }, { "name": "Investigational varicella vaccine high potency", "type": "BIOLOGICAL" }, { "name": "Licensed varicella vaccine Lot 1", "type": "BIOLOGICAL" }, { "name": "Licensed varicella vaccine Lot 2", "type": "BIOLOGICAL" }, { "name": "Measles, mumps, and rubella vaccine", "type": "BIOLOGICAL" }, { "name": "Hepatitis A vaccine", "type": "BIOLOGICAL" }, { "name": "13-valent pneumococcal conjugate vaccine", "type": "BIOLOGICAL" } ], "intervention_types": [ "BIOLOGICAL" ], "sponsor": "GlaxoSmithKline", "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": 800, "start_date": "2022-02-03", "completion_date": "2024-06-13", "has_results": true, "last_update_posted_date": "2025-02-28", "last_synced_at": "2026-10-07T16:11:51.271Z", "location_count": 41, "location_summary": "Bryant, Arkansas • Jonesboro, Arkansas • Little Rock, Arkansas + 37 more", "locations": [ { "city": "Bryant", "state": "Arkansas" }, { "city": "Jonesboro", "state": "Arkansas" }, { "city": "Little Rock", "state": "Arkansas" }, { "city": "Bellflower", "state": "California" }, { "city": "Downey", "state": "California" } ], "official_url": "https://clinicaltrials.gov/study/NCT05084508" }, { "nct_id": "NCT04193189", "title": "B-Enhancement of HBV Vaccination in Persons Living With HIV (BEe-HIVe): Evaluation of HEPLISAV-B", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE3" ], "conditions": [ "HIV Infection", "Hepatitis B" ], "interventions": [ { "name": "HEPLISAV-B", "type": "BIOLOGICAL" }, { "name": "ENGERIX-B", "type": "BIOLOGICAL" } ], "intervention_types": [ "BIOLOGICAL" ], "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)", "sponsor_class": "NIH", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": "70 Years", "sex": "ALL", "summary": "18 Years to 70 Years" }, "enrollment_count": 638, "start_date": "2020-12-14", "completion_date": "2024-08-13", "has_results": true, "last_update_posted_date": "2025-07-20", "last_synced_at": "2026-10-07T16:11:51.271Z", "location_count": 28, "location_summary": "Birmingham, Alabama • Los Angeles, California • San Diego, California + 22 more", "locations": [ { "city": "Birmingham", "state": "Alabama" }, { "city": "Los Angeles", "state": "California" }, { "city": "San Diego", "state": "California" }, { "city": "San Francisco", "state": "California" }, { "city": "Torrance", "state": "California" } ], "official_url": "https://clinicaltrials.gov/study/NCT04193189" }, { "nct_id": "NCT02675608", "title": "Vaccine Efficacy in Diabetic and Elderly Patients", "overall_status": "COMPLETED", "study_type": "OBSERVATIONAL", "phases": [], "conditions": [ "Inflammation" ], "interventions": [ { "name": "Influenza Virus Vaccine", "type": "BIOLOGICAL" } ], "intervention_types": [ "BIOLOGICAL" ], "sponsor": "Tulane University", "sponsor_class": "OTHER", "healthy_volunteers": true, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 164, "start_date": "2015-08", "completion_date": null, "has_results": false, "last_update_posted_date": "2017-01-13", "last_synced_at": "2026-10-07T16:11:51.271Z", "location_count": 1, "location_summary": "New Orleans, Louisiana", "locations": [ { "city": "New Orleans", "state": "Louisiana" } ], "official_url": "https://clinicaltrials.gov/study/NCT02675608" }, { "nct_id": "NCT00197236", "title": "Immunogenicity and Safety of Havrix™ Co-Administered With a Diphtheria, Tetanus and Pertussis and a Haemophilus b Vaccine in Children Aged 15 Months", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE3" ], "conditions": [ "Hepatitis A" ], "interventions": [ { "name": "Havrix™", "type": "BIOLOGICAL" }, { "name": "Infanrix™", "type": "BIOLOGICAL" }, { "name": "ActHIB™", "type": "BIOLOGICAL" } ], "intervention_types": [ "BIOLOGICAL" ], "sponsor": "GlaxoSmithKline", "sponsor_class": "INDUSTRY", "healthy_volunteers": true, "eligibility": { "minimum_age": "12 Months", "maximum_age": "13 Months", "sex": "ALL", "summary": "12 Months to 13 Months" }, "enrollment_count": 468, "start_date": "2003-11-11", "completion_date": "2007-12-03", "has_results": true, "last_update_posted_date": "2018-08-20", "last_synced_at": "2026-10-07T16:11:51.271Z", "location_count": 22, "location_summary": "Phoenix, Arizona • Oakland, California • San Ramon, California + 18 more", "locations": [ { "city": "Phoenix", "state": "Arizona" }, { "city": "Oakland", "state": "California" }, { "city": "San Ramon", "state": "California" }, { "city": "Wilmington", "state": "Delaware" }, { "city": "Pembroke Pines", "state": "Florida" } ], "official_url": "https://clinicaltrials.gov/study/NCT00197236" }, { "nct_id": "NCT01702428", "title": "Consistency Study of GlaxoSmithKline (GSK) Biologicals' MMR Vaccine (209762) (Priorix) Comparing Immunogenicity and Safety to Merck & Co., Inc.'s MMR Vaccine (M-M-R II), in Children 12 to 15 Months of Age", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE3" ], "conditions": [ "Rubella", "Measles", "Mumps" ], "interventions": [ { "name": "Priorix", "type": "BIOLOGICAL" }, { "name": "M-M-R II", "type": "BIOLOGICAL" }, { "name": "Varivax", "type": "BIOLOGICAL" }, { "name": "Havrix", "type": "BIOLOGICAL" }, { "name": "Prevnar 13", "type": "BIOLOGICAL" } ], "intervention_types": [ "BIOLOGICAL" ], "sponsor": "GlaxoSmithKline", "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": 5016, "start_date": "2012-11-09", "completion_date": "2015-04-16", "has_results": true, "last_update_posted_date": "2019-11-25", "last_synced_at": "2026-10-07T16:11:51.271Z", "location_count": 62, "location_summary": "Dothan, Alabama • Phoenix, Arizona • Fayetteville, Arkansas + 56 more", "locations": [ { "city": "Dothan", "state": "Alabama" }, { "city": "Phoenix", "state": "Arizona" }, { "city": "Fayetteville", "state": "Arkansas" }, { "city": "Anaheim", "state": "California" }, { "city": "Daly City", "state": "California" } ], "official_url": "https://clinicaltrials.gov/study/NCT01702428" }, { "nct_id": "NCT01282216", "title": "Patient-donor Vaccination in the Context of Allogeneic Bone Marrow Transplant With Post-transplant Cyclophosphamide", "overall_status": "TERMINATED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE2" ], "conditions": [ "Transplant-Related Cancer" ], "interventions": [ { "name": "Havrix", "type": "BIOLOGICAL" }, { "name": "PCV13", "type": "BIOLOGICAL" } ], "intervention_types": [ "BIOLOGICAL" ], "sponsor": "Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins", "sponsor_class": "OTHER", "healthy_volunteers": true, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 120, "start_date": "2011-04", "completion_date": "2016-01", "has_results": true, "last_update_posted_date": "2019-05-30", "last_synced_at": "2026-10-07T16:11:51.271Z", "location_count": 1, "location_summary": "Baltimore, Maryland", "locations": [ { "city": "Baltimore", "state": "Maryland" } ], "official_url": "https://clinicaltrials.gov/study/NCT01282216" }, { "nct_id": "NCT03207750", "title": "This Study Will Evaluate the Immunogenicity, Reactogenicity and Safety of the Routine Infant Vaccines Pediarix®, Hiberix® and Prevenar 13® When Co-administered With GlaxoSmithKline (GSK) Biologicals' Liquid Human Rotavirus Vaccine (HRV) as Compared to GSK's Licensed Lyophilized Vaccine", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE3" ], "conditions": [ "Rotavirus Infection", "Rotavirus Vaccines" ], "interventions": [ { "name": "Rotarix", "type": "BIOLOGICAL" }, { "name": "Pediarix", "type": "BIOLOGICAL" }, { "name": "Hiberix", "type": "BIOLOGICAL" }, { "name": "Prevenar 13", "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": 1280, "start_date": "2017-09-14", "completion_date": "2019-03-01", "has_results": true, "last_update_posted_date": "2020-12-29", "last_synced_at": "2026-10-07T16:11:51.271Z", "location_count": 47, "location_summary": "Birmingham, Alabama • Fayetteville, Arkansas • Jonesboro, Arkansas + 40 more", "locations": [ { "city": "Birmingham", "state": "Alabama" }, { "city": "Fayetteville", "state": "Arkansas" }, { "city": "Jonesboro", "state": "Arkansas" }, { "city": "Daly City", "state": "California" }, { "city": "Oakland", "state": "California" } ], "official_url": "https://clinicaltrials.gov/study/NCT03207750" }, { "nct_id": "NCT00139113", "title": "Immunogenicity Study of an Inactivated Hepatitis A Vaccine in Infants and Young Children", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE4" ], "conditions": [ "Hepatitis A" ], "interventions": [ { "name": "hepatitis A vaccine", "type": "BIOLOGICAL" } ], "intervention_types": [ "BIOLOGICAL" ], "sponsor": "Centers for Disease Control and Prevention", "sponsor_class": "FED", "healthy_volunteers": true, "eligibility": { "minimum_age": "6 Months", "maximum_age": "25 Years", "sex": "ALL", "summary": "6 Months to 25 Years" }, "enrollment_count": 248, "start_date": "1996-09", "completion_date": "2001-06", "has_results": false, "last_update_posted_date": "2024-08-20", "last_synced_at": "2026-10-07T16:11:51.271Z", "location_count": 2, "location_summary": "Anchorage, Alaska", "locations": [ { "city": "Anchorage", "state": "Alaska" }, { "city": "Anchorage", "state": "Alaska" } ], "official_url": "https://clinicaltrials.gov/study/NCT00139113" }, { "nct_id": "NCT00004735", "title": "The Effects of Anti-HIV Therapy on the Immune Systems of Children and Young Adults Infected With HIV", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "NA" ], "conditions": [ "HIV Infections" ], "interventions": [ { "name": "Tetanus toxoid", "type": "BIOLOGICAL" }, { "name": "Hepatitis A Vaccine (Inactivated)", "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": 81, "start_date": "2000-02", "completion_date": "2006-09", "has_results": false, "last_update_posted_date": "2013-10-07", "last_synced_at": "2026-10-07T16:11:51.271Z", "location_count": 25, "location_summary": "Birmingham, Alabama • Alhambra, California • Long Beach, California + 18 more", "locations": [ { "city": "Birmingham", "state": "Alabama" }, { "city": "Alhambra", "state": "California" }, { "city": "Long Beach", "state": "California" }, { "city": "San Francisco", "state": "California" }, { "city": "Aurora", "state": "Colorado" } ], "official_url": "https://clinicaltrials.gov/study/NCT00004735" }, { "nct_id": "NCT00373958", "title": "Study Comparing 13-valent Pneumococcal Conjugate Vaccine With 7-valent Pneumococcal Conjugate Vaccine", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE3" ], "conditions": [ "Vaccines, Pneumococcal" ], "interventions": [ { "name": "13 valent pneumococcal conjugate vaccine", "type": "BIOLOGICAL" }, { "name": "7vPnc 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": 666, "start_date": "2006-09", "completion_date": "2008-06", "has_results": true, "last_update_posted_date": "2013-02-21", "last_synced_at": "2026-10-07T16:11:51.271Z", "location_count": 37, "location_summary": "Fayetteville, Arkansas • Jonesboro, Arkansas • Little Rock, Arkansas + 31 more", "locations": [ { "city": "Fayetteville", "state": "Arkansas" }, { "city": "Jonesboro", "state": "Arkansas" }, { "city": "Little Rock", "state": "Arkansas" }, { "city": "Downey", "state": "California" }, { "city": "Fontana", "state": "California" } ], "official_url": "https://clinicaltrials.gov/study/NCT00373958" } ] }