{ "api_version": "1", "request": { "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Haemophilus+Influenzae+Type+b", "query": { "condition": "Haemophilus Influenzae Type b" }, "page_size": 10 }, "pagination": { "page": 1, "page_size": 10, "total_count": 23, "total_pages": 3, "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Haemophilus+Influenzae+Type+b&page=2&page_size=10", "previous_page_url": null }, "source": "remote", "last_synced_at": "2026-05-22T09:04:47.128Z", "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": "NCT01978093", "title": "Immunogenicity, Safety and Reactogenicity Study of GlaxoSmithKline (GSK) Biologicals' Hib-MenCY-TT (MenHibrix®) Vaccine Compared to Merck & Co, Inc. PedvaxHIB Vaccine in Healthy Infants and Toddlers 12 to 15 Months of Age", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE3" ], "conditions": [ "Neisseria Meningitidis", "Haemophilus Influenzae Type b" ], "interventions": [ { "name": "Hib-MenCY-TT (MenHibrix®)", "type": "BIOLOGICAL" }, { "name": "Pediarix®", "type": "BIOLOGICAL" }, { "name": "Rotarix®", "type": "BIOLOGICAL" }, { "name": "Prevnar 13®", "type": "BIOLOGICAL" }, { "name": "PedvaxHIB®", "type": "BIOLOGICAL" }, { "name": "Havrix®", "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": 600, "start_date": "2014-02-01", "completion_date": "2016-03-18", "has_results": true, "last_update_posted_date": "2018-09-14", "last_synced_at": "2026-05-22T09:04:47.128Z", "location_count": 26, "location_summary": "Birmingham, Alabama • Fayetteville, Arkansas • Jonesboro, Arkansas + 23 more", "locations": [ { "city": "Birmingham", "state": "Alabama" }, { "city": "Fayetteville", "state": "Arkansas" }, { "city": "Jonesboro", "state": "Arkansas" }, { "city": "Fresno", "state": "California" }, { "city": "Huntington Beach", "state": "California" } ], "official_url": "https://clinicaltrials.gov/study/NCT01978093" }, { "nct_id": "NCT00153556", "title": "Study to Eliminate Hib Carriage in Rural Alaska Native Villages", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE4" ], "conditions": [ "Haemophilus Influenzae Type B", "Carrier State" ], "interventions": [ { "name": "Hib conjugate vaccine (HbOC, Wyeth Vaccines)", "type": "BIOLOGICAL" } ], "intervention_types": [ "BIOLOGICAL" ], "sponsor": "Centers for Disease Control and Prevention", "sponsor_class": "FED", "healthy_volunteers": true, "eligibility": { "minimum_age": "0 Years", "maximum_age": null, "sex": "ALL", "summary": "0 Years and older" }, "enrollment_count": 3200, "start_date": "2001-09", "completion_date": "2003-11", "has_results": false, "last_update_posted_date": "2005-09-12", "last_synced_at": "2026-05-22T09:04:47.128Z", "location_count": 1, "location_summary": "Anchorage, Alaska", "locations": [ { "city": "Anchorage", "state": "Alaska" } ], "official_url": "https://clinicaltrials.gov/study/NCT00153556" }, { "nct_id": "NCT04978818", "title": "Immunogenicity of H. Influenzae Type b PRP-OMP Vaccines in American Indian and Alaska Native Children (the HibVax Study)", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE4" ], "conditions": [ "Haemophilus Influenzae Type B Infection" ], "interventions": [ { "name": "Vaxelis", "type": "DRUG" }, { "name": "PedvaxHIB", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "Johns Hopkins Bloomberg School of Public Health", "sponsor_class": "OTHER", "healthy_volunteers": true, "eligibility": { "minimum_age": "6 Weeks", "maximum_age": "12 Weeks", "sex": "ALL", "summary": "6 Weeks to 12 Weeks" }, "enrollment_count": 333, "start_date": "2022-01-27", "completion_date": "2023-10-26", "has_results": true, "last_update_posted_date": "2024-06-24", "last_synced_at": "2026-05-22T09:04:47.128Z", "location_count": 5, "location_summary": "Anchorage, Alaska • Chinle, Arizona • Fort Defiance, Arizona + 2 more", "locations": [ { "city": "Anchorage", "state": "Alaska" }, { "city": "Chinle", "state": "Arizona" }, { "city": "Fort Defiance", "state": "Arizona" }, { "city": "Gallup", "state": "New Mexico" }, { "city": "Shiprock", "state": "New Mexico" } ], "official_url": "https://clinicaltrials.gov/study/NCT04978818" }, { "nct_id": "NCT00345579", "title": "Safety of Hib-MenCY-TT Vaccine Versus Licensed Hib Conjugate Vaccine, Given at 2, 4, 6 and 12 to 15 Months of Age", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE3" ], "conditions": [ "Haemophilus Influenzae Type b", "Neisseria Meningitidis" ], "interventions": [ { "name": "GSK Biologicals' Haemophilus influenzae type b and Neisseria meningitidis serogroups C and Y-tetanus toxoid conjugate vaccine combined 792014", "type": "BIOLOGICAL" }, { "name": "ActHIB", "type": "BIOLOGICAL" }, { "name": "Pediarix/Infanrix Penta", "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": 4432, "start_date": "2006-09", "completion_date": "2008-03", "has_results": true, "last_update_posted_date": "2016-12-16", "last_synced_at": "2026-05-22T09:04:47.128Z", "location_count": 61, "location_summary": "Birmingham, Alabama • Benton, Arkansas • Fayetteville, Arkansas + 51 more", "locations": [ { "city": "Birmingham", "state": "Alabama" }, { "city": "Birmingham", "state": "Alabama" }, { "city": "Benton", "state": "Arkansas" }, { "city": "Fayetteville", "state": "Arkansas" }, { "city": "Hot Springs", "state": "Arkansas" } ], "official_url": "https://clinicaltrials.gov/study/NCT00345579" }, { "nct_id": "NCT00359983", "title": "Long-Term Antibody Persistence at 1, 3 and 5 Years After a Fourth Dose of GSK Biologicals' Hib-MenCY-TT Vaccine Compared to ActHIB", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE3" ], "conditions": [ "Neisseria Meningitidis", "Haemophilus Influenzae Type b" ], "interventions": [ { "name": "MenHibrix (Hib-MenCY-TT)", "type": "BIOLOGICAL" }, { "name": "Hib conjugate vaccine (ActHIB)", "type": "BIOLOGICAL" } ], "intervention_types": [ "BIOLOGICAL" ], "sponsor": "GlaxoSmithKline", "sponsor_class": "INDUSTRY", "healthy_volunteers": true, "eligibility": { "minimum_age": "22 Months", "maximum_age": "60 Months", "sex": "ALL", "summary": "22 Months to 60 Months" }, "enrollment_count": 270, "start_date": "2006-09", "completion_date": "2011-05", "has_results": true, "last_update_posted_date": "2016-12-16", "last_synced_at": "2026-05-22T09:04:47.128Z", "location_count": 21, "location_summary": "Little Rock, Arkansas • Fountain Valley, California • Norwich, Connecticut + 15 more", "locations": [ { "city": "Little Rock", "state": "Arkansas" }, { "city": "Fountain Valley", "state": "California" }, { "city": "Norwich", "state": "Connecticut" }, { "city": "Marietta", "state": "Georgia" }, { "city": "Woodstock", "state": "Georgia" } ], "official_url": "https://clinicaltrials.gov/study/NCT00359983" }, { "nct_id": "NCT04398706", "title": "Study of a Pneumococcal Conjugate Vaccine When Administered Concomitantly With Routine Pediatric Vaccines in Healthy Toddlers and Infants", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE2" ], "conditions": [ "Pneumococcal Immunisation", "Diphtheria Immunisation", "Tetanus Immunisation", "Pertussis Immunisation", "Hepatitis B Immunisation", "Haemophilus Influenzae Type b Immunisation", "Polio Immunisation", "Measles Immunisation", "Rubella Immunisation", "Varicella Immunisation", "Mumps Immunisation" ], "interventions": [ { "name": "Pneumococcal Conjugate Vaccine formulation 1", "type": "BIOLOGICAL" }, { "name": "Pneumococcal Conjugate Vaccine formulation 2", "type": "BIOLOGICAL" }, { "name": "Pneumococcal Conjugate Vaccine formulation 3", "type": "BIOLOGICAL" }, { "name": "Varicella Virus Vaccine Live", "type": "BIOLOGICAL" }, { "name": "Measles, Mumps, and Rubella Virus Vaccine Live", "type": "BIOLOGICAL" }, { "name": "Pneumococcal 13-valent Conjugate Vaccine [Diphtheria CRM197 Protein]", "type": "BIOLOGICAL" }, { "name": "Diphtheria and Tetanus Toxoids and Acellular Pertussis Adsorbed, Inactivated Poliovirus and Haemophilus b Conjugate (Tetanus Toxoid Conjugate)", "type": "BIOLOGICAL" }, { "name": "Rotavirus Vaccine, Live, Oral, Pentavalent", "type": "BIOLOGICAL" }, { "name": "Hepatitis B Vaccine* [Recombinant] *as applicable", "type": "BIOLOGICAL" } ], "intervention_types": [ "BIOLOGICAL" ], "sponsor": "Sanofi Pasteur, a Sanofi Company", "sponsor_class": "INDUSTRY", "healthy_volunteers": true, "eligibility": { "minimum_age": "42 Days", "maximum_age": "15 Months", "sex": "ALL", "summary": "42 Days to 15 Months" }, "enrollment_count": 852, "start_date": "2020-05-22", "completion_date": "2023-08-10", "has_results": true, "last_update_posted_date": "2025-09-08", "last_synced_at": "2026-05-22T09:04:47.128Z", "location_count": 49, "location_summary": "Jonesboro, Arkansas • Bellflower, California • Huntington Park, California + 41 more", "locations": [ { "city": "Jonesboro", "state": "Arkansas" }, { "city": "Bellflower", "state": "California" }, { "city": "Huntington Park", "state": "California" }, { "city": "Huntington Park", "state": "California" }, { "city": "Los Angeles", "state": "California" } ], "official_url": "https://clinicaltrials.gov/study/NCT04398706" }, { "nct_id": "NCT00804284", "title": "Database Surveillance Safety Study of PENTACEL® Vaccine", "overall_status": "COMPLETED", "study_type": "OBSERVATIONAL", "phases": [], "conditions": [ "Diphtheria", "Tetanus", "Pertussis", "Haemophilus Influenzae" ], "interventions": [ { "name": "DTaP-IPV/Hib", "type": "BIOLOGICAL" }, { "name": "Other DTap Vaccines", "type": "BIOLOGICAL" } ], "intervention_types": [ "BIOLOGICAL" ], "sponsor": "Sanofi Pasteur, a Sanofi Company", "sponsor_class": "INDUSTRY", "healthy_volunteers": true, "eligibility": { "minimum_age": "6 Weeks", "maximum_age": "24 Months", "sex": "MALE", "summary": "6 Weeks to 24 Months · Male only" }, "enrollment_count": 62538, "start_date": "2008-09", "completion_date": "2015-01", "has_results": false, "last_update_posted_date": "2015-08-19", "last_synced_at": "2026-05-22T09:04:47.128Z", "location_count": 1, "location_summary": "Oakland, California", "locations": [ { "city": "Oakland", "state": "California" } ], "official_url": "https://clinicaltrials.gov/study/NCT00804284" }, { "nct_id": "NCT00662870", "title": "Study of the Safety, Immunogenicity and Lot Comparability of DAPTACEL When Administered With Other Recommended Vaccine", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE3" ], "conditions": [ "Diphtheria", "Tetanus", "Whooping Cough", "Polio", "Haemophilus Influenzae Type b" ], "interventions": [ { "name": "DAPTACEL® (Diphtheria and Tetanus Toxoids and Acellular Pertussis vaccine)", "type": "BIOLOGICAL" }, { "name": "Pentacel: DTaP-IPV/Hib", "type": "BIOLOGICAL" } ], "intervention_types": [ "BIOLOGICAL" ], "sponsor": "Sanofi", "sponsor_class": "INDUSTRY", "healthy_volunteers": true, "eligibility": { "minimum_age": "42 Days", "maximum_age": "84 Days", "sex": "ALL", "summary": "42 Days to 84 Days" }, "enrollment_count": 1941, "start_date": "2001-05", "completion_date": "2004-01", "has_results": false, "last_update_posted_date": "2012-01-31", "last_synced_at": "2026-05-22T09:04:47.128Z", "location_count": 26, "location_summary": "Fayetteville, AR 72703, Arkansas • Jonesboro, AR 72401, Arkansas • Little Rock, AR 72211, Arkansas + 23 more", "locations": [ { "city": "Fayetteville, AR 72703", "state": "Arkansas" }, { "city": "Jonesboro, AR 72401", "state": "Arkansas" }, { "city": "Little Rock, AR 72211", "state": "Arkansas" }, { "city": "Fountain Valley, CA 92708", "state": "California" }, { "city": "Englewood, CO 80112", "state": "Colorado" } ], "official_url": "https://clinicaltrials.gov/study/NCT00662870" }, { "nct_id": "NCT00855855", "title": "Surveillance Program to Determine Product Specific Rates of Invasive Hib Disease", "overall_status": "COMPLETED", "study_type": "OBSERVATIONAL", "phases": [], "conditions": [ "Haemophilus Infections", "Diphtheria", "Tetanus", "Polio", "Pertussis" ], "interventions": [ { "name": "DTaP-IPV/Hib", "type": "BIOLOGICAL" } ], "intervention_types": [ "BIOLOGICAL" ], "sponsor": "Sanofi Pasteur, a Sanofi Company", "sponsor_class": "INDUSTRY", "healthy_volunteers": true, "eligibility": { "minimum_age": null, "maximum_age": "59 Months", "sex": "ALL", "summary": "Up to 59 Months" }, "enrollment_count": 20830, "start_date": "2009-02", "completion_date": "2014-12", "has_results": false, "last_update_posted_date": "2022-04-25", "last_synced_at": "2026-05-22T09:04:47.128Z", "location_count": 59, "location_summary": "Albany, California • Martinez, California • San Francisco, California + 56 more", "locations": [ { "city": "Albany", "state": "California" }, { "city": "Martinez", "state": "California" }, { "city": "San Francisco", "state": "California" }, { "city": "Applewood", "state": "Colorado" }, { "city": "Aurora", "state": "Colorado" } ], "official_url": "https://clinicaltrials.gov/study/NCT00855855" }, { "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": "2026-05-22T09:04:47.128Z", "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" } ] }