{ "api_version": "1", "request": { "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Hepatitis+B+Vaccines&page=2", "query": { "condition": "Hepatitis B Vaccines", "page": 2 }, "page_size": 10 }, "pagination": { "page": 2, "page_size": 10, "total_count": 10, "total_pages": 1, "next_page_url": null, "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Hepatitis+B+Vaccines&page=1&page_size=10" }, "source": "remote", "last_synced_at": "2026-07-22T00:37:08.679Z", "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": "NCT03797014", "title": "B/F/TAF Switch Study for HIV-HBV Coinfection", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE4" ], "conditions": [ "HIV-1-infection", "Hepatitis B" ], "interventions": [ { "name": "B/F/TAF", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "University of Maryland, Baltimore", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 28, "start_date": "2019-04-30", "completion_date": "2023-05-05", "has_results": true, "last_update_posted_date": "2023-11-03", "last_synced_at": "2026-07-22T00:37:08.679Z", "location_count": 2, "location_summary": "Baltimore, Maryland • Philadelphia, Pennsylvania", "locations": [ { "city": "Baltimore", "state": "Maryland" }, { "city": "Philadelphia", "state": "Pennsylvania" } ], "official_url": "https://clinicaltrials.gov/study/NCT03797014" }, { "nct_id": "NCT01277601", "title": "Efficacy & Safety of Tenofovir Disoproxil Fumarate (TDF) Plus Peginterferon α-2a (Peg-IFN) Versus TDF or Peg-IFN Monotherapy in Chronic Hepatitis B", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE4" ], "conditions": [ "Chronic Hepatitis B" ], "interventions": [ { "name": "TDF", "type": "DRUG" }, { "name": "Peg-IFN", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "Gilead Sciences", "sponsor_class": "INDUSTRY", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": "75 Years", "sex": "ALL", "summary": "18 Years to 75 Years" }, "enrollment_count": 751, "start_date": "2011-04", "completion_date": "2015-07", "has_results": true, "last_update_posted_date": "2016-08-26", "last_synced_at": "2026-07-22T00:37:08.679Z", "location_count": 26, "location_summary": "Los Angeles, California • Palo Alto, California • San Diego, California + 17 more", "locations": [ { "city": "Los Angeles", "state": "California" }, { "city": "Palo Alto", "state": "California" }, { "city": "San Diego", "state": "California" }, { "city": "San Jose", "state": "California" }, { "city": "DeLand", "state": "Florida" } ], "official_url": "https://clinicaltrials.gov/study/NCT01277601" }, { "nct_id": "NCT02452528", "title": "Study of ARC-520 in Participants With Hepatitis B Virus e Antigen (HBeAg) Positive Chronic Hepatitis B Virus", "overall_status": "TERMINATED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE2" ], "conditions": [ "Chronic Hepatitis B" ], "interventions": [ { "name": "ARC-520", "type": "DRUG" }, { "name": "Placebo", "type": "DRUG" }, { "name": "Entecavir", "type": "DRUG" }, { "name": "Tenofovir", "type": "DRUG" }, { "name": "diphenhydramine", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "Arrowhead Pharmaceuticals", "sponsor_class": "INDUSTRY", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": "75 Years", "sex": "ALL", "summary": "18 Years to 75 Years" }, "enrollment_count": 4, "start_date": "2015-08", "completion_date": "2016-12", "has_results": true, "last_update_posted_date": "2025-11-03", "last_synced_at": "2026-07-22T00:37:08.679Z", "location_count": 4, "location_summary": "San Francisco, California • Miami, Florida • New York, New York + 1 more", "locations": [ { "city": "San Francisco", "state": "California" }, { "city": "Miami", "state": "Florida" }, { "city": "New York", "state": "New York" }, { "city": "San Antonio", "state": "Texas" } ], "official_url": "https://clinicaltrials.gov/study/NCT02452528" }, { "nct_id": "NCT00013871", "title": "Pneumococcal Vaccine and Routine Pediatric Immunizations in HIV-Infected Children Receiving Anti-HIV Drugs", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "NA" ], "conditions": [ "HIV Infections", "Hepatitis B", "Measles", "Pneumococcal Infections", "Pertussis" ], "interventions": [ { "name": "Diphtheria & Tetanus Toxoids & Acellular Pertussis Vaccine Adsorbed", "type": "BIOLOGICAL" }, { "name": "Measles-Mumps-Rubella Vaccine (Live)", "type": "BIOLOGICAL" }, { "name": "Pneumococcal Vaccine, Polyvalent (23-valent)", "type": "BIOLOGICAL" }, { "name": "Pneumococcal Conjugate Vaccine, Heptavalent", "type": "BIOLOGICAL" }, { "name": "Hepatitis B Vaccine (Recombinant)", "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": "18 Years", "sex": "ALL", "summary": "2 Years to 18 Years" }, "enrollment_count": 300, "start_date": null, "completion_date": "2004-11", "has_results": false, "last_update_posted_date": "2021-11-01", "last_synced_at": "2026-07-22T00:37:08.679Z", "location_count": 38, "location_summary": "Birmingham, Alabama • Long Beach, California • Los Angeles, California + 26 more", "locations": [ { "city": "Birmingham", "state": "Alabama" }, { "city": "Long Beach", "state": "California" }, { "city": "Los Angeles", "state": "California" }, { "city": "Oakland", "state": "California" }, { "city": "San Diego", "state": "California" } ], "official_url": "https://clinicaltrials.gov/study/NCT00013871" }, { "nct_id": "NCT07031219", "title": "HIV/HBV/HCV Triple Screening in Primary Care", "overall_status": "NOT_YET_RECRUITING", "study_type": "INTERVENTIONAL", "phases": [ "NA" ], "conditions": [ "HIV", "HBV (Hepatitis B Virus)", "HCV" ], "interventions": [ { "name": "electronic medical record alert linked to orders", "type": "OTHER" } ], "intervention_types": [ "OTHER" ], "sponsor": "University of Texas Southwestern Medical Center", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 50, "start_date": "2026-06-01", "completion_date": "2027-06", "has_results": false, "last_update_posted_date": "2026-04-29", "last_synced_at": "2026-07-22T00:37:08.679Z", "location_count": 1, "location_summary": "Dallas, Texas", "locations": [ { "city": "Dallas", "state": "Texas" } ], "official_url": "https://clinicaltrials.gov/study/NCT07031219" }, { "nct_id": "NCT02096263", "title": "Study to Determine the Immunogenicity and Safety of GlaxoSmithKline (GSK) Biologicals; Infanrix Hexa at 2, 4 and 6 Months of Age in Healthy Infants", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE3" ], "conditions": [ "Poliomyelitis", "Diphtheria", "Haemophilus Influenzae Type b", "Tetanus", "Acellular Pertussis", "Hepatitis B" ], "interventions": [ { "name": "Infanrix hexa", "type": "BIOLOGICAL" }, { "name": "Pediarix", "type": "BIOLOGICAL" }, { "name": "ActHIB", "type": "BIOLOGICAL" }, { "name": "Pentacel", "type": "BIOLOGICAL" }, { "name": "Engerix-B", "type": "BIOLOGICAL" }, { "name": "Infanrix", "type": "BIOLOGICAL" }, { "name": "Hiberix", "type": "BIOLOGICAL" }, { "name": "Prevnar13", "type": "BIOLOGICAL" }, { "name": "Rotarix", "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": 585, "start_date": "2014-04-16", "completion_date": "2015-11-13", "has_results": true, "last_update_posted_date": "2019-11-27", "last_synced_at": "2026-07-22T00:37:08.679Z", "location_count": 43, "location_summary": "Tucson, Arizona • Fayetteville, Arkansas • Anaheim, California + 38 more", "locations": [ { "city": "Tucson", "state": "Arizona" }, { "city": "Fayetteville", "state": "Arkansas" }, { "city": "Anaheim", "state": "California" }, { "city": "Daly City", "state": "California" }, { "city": "Fresno", "state": "California" } ], "official_url": "https://clinicaltrials.gov/study/NCT02096263" }, { "nct_id": "NCT00063596", "title": "Vitamin A Supplementation in Preterm Infants", "overall_status": "UNKNOWN", "study_type": "INTERVENTIONAL", "phases": [ "NA" ], "conditions": [ "Infant, Premature" ], "interventions": [ { "name": "Vitamin A supplementation", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)", "sponsor_class": "NIH", "healthy_volunteers": false, "eligibility": { "minimum_age": "1 Day", "maximum_age": "3 Days", "sex": "ALL", "summary": "1 Day to 3 Days" }, "enrollment_count": 220, "start_date": "2000-01", "completion_date": "2004-05", "has_results": false, "last_update_posted_date": "2005-06-24", "last_synced_at": "2026-07-22T00:37:08.679Z", "location_count": 1, "location_summary": "Buffalo, New York", "locations": [ { "city": "Buffalo", "state": "New York" } ], "official_url": "https://clinicaltrials.gov/study/NCT00063596" }, { "nct_id": "NCT03025074", "title": "Blood Collection Biorepository for Liver Disease Research", "overall_status": "RECRUITING", "study_type": "OBSERVATIONAL", "phases": [], "conditions": [ "Non-Alcoholic Steatohepatitis(NASH)", "Hepatitis C", "Hepatitis B", "Fibrosis", "Cirrhosis", "Fatty Liver", "Obesity, Childhood", "Bariatric Surgery Candidate" ], "interventions": [], "intervention_types": [], "sponsor": "State University of New York at Buffalo", "sponsor_class": "OTHER", "healthy_volunteers": true, "eligibility": { "minimum_age": "7 Years", "maximum_age": null, "sex": "ALL", "summary": "7 Years and older" }, "enrollment_count": 1000, "start_date": "2013-07", "completion_date": "2099-12", "has_results": false, "last_update_posted_date": "2025-08-27", "last_synced_at": "2026-07-22T00:37:08.679Z", "location_count": 1, "location_summary": "Buffalo, New York", "locations": [ { "city": "Buffalo", "state": "New York" } ], "official_url": "https://clinicaltrials.gov/study/NCT03025074" }, { "nct_id": "NCT00404989", "title": "Antiretroviral Pregnancy Registry (APR): Multi-sponsor Registry to Detect Any Major Teratogenic Effect Involving Any of the Registry Drugs When Administered to Pregnant People.", "overall_status": "RECRUITING", "study_type": "OBSERVATIONAL", "phases": [], "conditions": [ "HIV Infections", "Hepatitis B" ], "interventions": [], "intervention_types": [], "sponsor": "Syneos Health", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "12 Years", "maximum_age": "60 Years", "sex": "FEMALE", "summary": "12 Years to 60 Years · Female only" }, "enrollment_count": 24258, "start_date": "1989-01", "completion_date": "2099-01", "has_results": false, "last_update_posted_date": "2025-04-01", "last_synced_at": "2026-07-22T00:37:08.679Z", "location_count": 1, "location_summary": "Wilmington, North Carolina", "locations": [ { "city": "Wilmington", "state": "North Carolina" } ], "official_url": "https://clinicaltrials.gov/study/NCT00404989" }, { "nct_id": "NCT00962975", "title": "A Study of Pegasys Monotherapy in Patients With Chronic Hepatitis B Who Have Participated in Previous Studies", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE1" ], "conditions": [ "Hepatitis B, Chronic" ], "interventions": [ { "name": "peginterferon alfa-2a [Pegasys]", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "Hoffmann-La Roche", "sponsor_class": "INDUSTRY", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 29, "start_date": "2009-09", "completion_date": "2013-05", "has_results": false, "last_update_posted_date": "2014-04-08", "last_synced_at": "2026-07-22T00:37:08.679Z", "location_count": 2, "location_summary": "Los Angeles, California • San Francisco, California", "locations": [ { "city": "Los Angeles", "state": "California" }, { "city": "San Francisco", "state": "California" } ], "official_url": "https://clinicaltrials.gov/study/NCT00962975" } ] }