{ "api_version": "1", "request": { "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Flu+Vaccine+%28Year+2%29&page=4", "query": { "intervention": "Flu Vaccine (Year 2)", "page": 4 }, "page_size": 10 }, "pagination": { "page": 4, "page_size": 10, "total_count": 193, "total_pages": 20, "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Flu+Vaccine+%28Year+2%29&page=5&page_size=10", "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Flu+Vaccine+%28Year+2%29&page=3&page_size=10" }, "source": "remote", "last_synced_at": "2026-10-12T18:11:53.925Z", "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": "NCT02434276", "title": "Study of the Immunogenicity and Safety of a Quadrivalent Influenza Vaccine (VAX2012Q) in Adults 18-64 Years", "overall_status": "UNKNOWN", "study_type": "INTERVENTIONAL", "phases": [ "PHASE2" ], "conditions": [ "Influenza" ], "interventions": [ { "name": "VAX2012Q", "type": "BIOLOGICAL" }, { "name": "Fluzone Quadrivalent", "type": "BIOLOGICAL" } ], "intervention_types": [ "BIOLOGICAL" ], "sponsor": "VaxInnate Corporation", "sponsor_class": "INDUSTRY", "healthy_volunteers": true, "eligibility": { "minimum_age": "18 Years", "maximum_age": "64 Years", "sex": "ALL", "summary": "18 Years to 64 Years" }, "enrollment_count": 450, "start_date": "2015-05", "completion_date": "2016-06", "has_results": false, "last_update_posted_date": "2015-06-26", "last_synced_at": "2026-10-12T18:11:53.925Z", "location_count": 6, "location_summary": "Huntsville, Alabama • San Diego, California • Melbourne, Florida + 3 more", "locations": [ { "city": "Huntsville", "state": "Alabama" }, { "city": "San Diego", "state": "California" }, { "city": "Melbourne", "state": "Florida" }, { "city": "Peoria", "state": "Illinois" }, { "city": "Mishawaka", "state": "Indiana" } ], "official_url": "https://clinicaltrials.gov/study/NCT02434276" }, { "nct_id": "NCT04101838", "title": "B Cell and Antibody Response to Seasonal Influenza Vaccines in Younger and Older Adults", "overall_status": "ACTIVE_NOT_RECRUITING", "study_type": "INTERVENTIONAL", "phases": [ "PHASE4" ], "conditions": [ "Influenza" ], "interventions": [ { "name": "Fluzone", "type": "DRUG" }, { "name": "Flucelvax", "type": "DRUG" }, { "name": "Fluzone High-Dose", "type": "DRUG" }, { "name": "Fluad", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "University of Alabama at Birmingham", "sponsor_class": "OTHER", "healthy_volunteers": true, "eligibility": { "minimum_age": "18 Years", "maximum_age": "80 Years", "sex": "ALL", "summary": "18 Years to 80 Years" }, "enrollment_count": 50, "start_date": "2021-04-01", "completion_date": "2027-05", "has_results": false, "last_update_posted_date": "2026-05-14", "last_synced_at": "2026-10-12T18:11:53.925Z", "location_count": 1, "location_summary": "Birmingham, Alabama", "locations": [ { "city": "Birmingham", "state": "Alabama" } ], "official_url": "https://clinicaltrials.gov/study/NCT04101838" }, { "nct_id": "NCT00946101", "title": "A Study to Evaluate the Safety of HIN1 Monovalent Vaccine (MEDI3414) in Children 2 to 17 Years of Age", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE4" ], "conditions": [ "Influenza" ], "interventions": [ { "name": "MEDI3414 [Influenza A(H1N1) live attenuated, intranasal]", "type": "BIOLOGICAL" }, { "name": "Placebo", "type": "BIOLOGICAL" } ], "intervention_types": [ "BIOLOGICAL" ], "sponsor": "MedImmune LLC", "sponsor_class": "INDUSTRY", "healthy_volunteers": true, "eligibility": { "minimum_age": "2 Years", "maximum_age": "17 Years", "sex": "ALL", "summary": "2 Years to 17 Years" }, "enrollment_count": 326, "start_date": "2009-08", "completion_date": "2010-03", "has_results": true, "last_update_posted_date": "2011-08-11", "last_synced_at": "2026-10-12T18:11:53.925Z", "location_count": 16, "location_summary": "Mobile, Alabama • Sacramento, California • San Diego, California + 13 more", "locations": [ { "city": "Mobile", "state": "Alabama" }, { "city": "Sacramento", "state": "California" }, { "city": "San Diego", "state": "California" }, { "city": "San Francisco", "state": "California" }, { "city": "Bardstown", "state": "Kentucky" } ], "official_url": "https://clinicaltrials.gov/study/NCT00946101" }, { "nct_id": "NCT00133536", "title": "A/H5N1 Vaccine in Healthy Children Aged 2-9 Years", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE1", "PHASE2" ], "conditions": [ "Influenza" ], "interventions": [ { "name": "Influenza A/H5N1 Vaccine", "type": "BIOLOGICAL" }, { "name": "Placebo", "type": "DRUG" } ], "intervention_types": [ "BIOLOGICAL", "DRUG" ], "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)", "sponsor_class": "NIH", "healthy_volunteers": true, "eligibility": { "minimum_age": "2 Years", "maximum_age": "9 Years", "sex": "ALL", "summary": "2 Years to 9 Years" }, "enrollment_count": 157, "start_date": "2006-01", "completion_date": "2007-04", "has_results": false, "last_update_posted_date": "2010-08-27", "last_synced_at": "2026-10-12T18:11:53.925Z", "location_count": 4, "location_summary": "Torrance, California • Baltimore, Maryland • St Louis, Missouri + 1 more", "locations": [ { "city": "Torrance", "state": "California" }, { "city": "Baltimore", "state": "Maryland" }, { "city": "St Louis", "state": "Missouri" }, { "city": "Cincinnati", "state": "Ohio" } ], "official_url": "https://clinicaltrials.gov/study/NCT00133536" }, { "nct_id": "NCT04956575", "title": "A Study of mRNA-1010 Seasonal Influenza Vaccine in Healthy Adults", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE1", "PHASE2" ], "conditions": [ "Seasonal Influenza" ], "interventions": [ { "name": "mRNA-1010", "type": "BIOLOGICAL" }, { "name": "Placebo", "type": "BIOLOGICAL" }, { "name": "Active Comparator", "type": "BIOLOGICAL" } ], "intervention_types": [ "BIOLOGICAL" ], "sponsor": "ModernaTX, Inc.", "sponsor_class": "INDUSTRY", "healthy_volunteers": true, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 885, "start_date": "2021-07-06", "completion_date": "2022-09-27", "has_results": true, "last_update_posted_date": "2023-10-27", "last_synced_at": "2026-10-12T18:11:53.925Z", "location_count": 21, "location_summary": "Phoenix, Arizona • Tempe, Arizona • Colton, California + 17 more", "locations": [ { "city": "Phoenix", "state": "Arizona" }, { "city": "Tempe", "state": "Arizona" }, { "city": "Colton", "state": "California" }, { "city": "Hollywood", "state": "Florida" }, { "city": "Savannah", "state": "Georgia" } ], "official_url": "https://clinicaltrials.gov/study/NCT04956575" }, { "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": "2026-10-12T18:11:53.925Z", "location_count": 1, "location_summary": "New Orleans, Louisiana", "locations": [ { "city": "New Orleans", "state": "Louisiana" } ], "official_url": "https://clinicaltrials.gov/study/NCT02675608" }, { "nct_id": "NCT03599739", "title": "Adjuvanted Influenza Vaccination Year 2 Follow-On Survey", "overall_status": "COMPLETED", "study_type": "OBSERVATIONAL", "phases": [], "conditions": [ "Influenza", "Influenza-like Illness", "Influenza, Human" ], "interventions": [ { "name": "Influenza", "type": "BIOLOGICAL" } ], "intervention_types": [ "BIOLOGICAL" ], "sponsor": "Insight Therapeutics, LLC", "sponsor_class": "OTHER", "healthy_volunteers": true, "eligibility": { "minimum_age": "65 Years", "maximum_age": null, "sex": "ALL", "summary": "65 Years and older" }, "enrollment_count": 598, "start_date": "2018-07-13", "completion_date": "2023-01-25", "has_results": false, "last_update_posted_date": "2023-03-16", "last_synced_at": "2026-10-12T18:11:53.925Z", "location_count": 1, "location_summary": "Norfolk, Virginia", "locations": [ { "city": "Norfolk", "state": "Virginia" } ], "official_url": "https://clinicaltrials.gov/study/NCT03599739" }, { "nct_id": "NCT01236040", "title": "Immunogenicity and Safety of Pandemic Influenza Vaccines in Adults Aged 18 - 49 Years Old", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE1" ], "conditions": [ "Influenza" ], "interventions": [ { "name": "GSK Biologicals' investigational vaccine GSK2590066A", "type": "BIOLOGICAL" }, { "name": "GSK Biologicals' investigational vaccine GSK2592984A", "type": "BIOLOGICAL" }, { "name": "GSK Biologicals' investigational vaccine GSK2340274A", "type": "BIOLOGICAL" }, { "name": "GSK Biologicals' investigational vaccine GSK2340273A", "type": "BIOLOGICAL" }, { "name": "Placebo", "type": "OTHER" } ], "intervention_types": [ "BIOLOGICAL", "OTHER" ], "sponsor": "GlaxoSmithKline", "sponsor_class": "INDUSTRY", "healthy_volunteers": true, "eligibility": { "minimum_age": "18 Years", "maximum_age": "49 Years", "sex": "ALL", "summary": "18 Years to 49 Years" }, "enrollment_count": 521, "start_date": "2010-11-29", "completion_date": "2012-08-20", "has_results": false, "last_update_posted_date": "2017-05-10", "last_synced_at": "2026-10-12T18:11:53.925Z", "location_count": 4, "location_summary": "Anaheim, California • Stockbridge, Georgia • Lenexa, Kansas + 1 more", "locations": [ { "city": "Anaheim", "state": "California" }, { "city": "Stockbridge", "state": "Georgia" }, { "city": "Lenexa", "state": "Kansas" }, { "city": "Austin", "state": "Texas" } ], "official_url": "https://clinicaltrials.gov/study/NCT01236040" }, { "nct_id": "NCT00333398", "title": "Immunogenicity, Safety and Tolerability of CSL Limited Inactivated Influenza Vaccine in Adults", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE3" ], "conditions": [ "Influenza" ], "interventions": [ { "name": "CSL Trivalent Inactivated Influenza Vaccine - Thimerosal-free", "type": "BIOLOGICAL" }, { "name": "CSL Trivalent Inactivated Influenza Vaccine with Thimerosal", "type": "BIOLOGICAL" }, { "name": "Placebo with Thimerosal", "type": "BIOLOGICAL" } ], "intervention_types": [ "BIOLOGICAL" ], "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)", "sponsor_class": "NIH", "healthy_volunteers": true, "eligibility": { "minimum_age": "18 Years", "maximum_age": "64 Years", "sex": "ALL", "summary": "18 Years to 64 Years" }, "enrollment_count": 1359, "start_date": "2006-06", "completion_date": "2006-08", "has_results": false, "last_update_posted_date": "2010-08-27", "last_synced_at": "2026-10-12T18:11:53.925Z", "location_count": 10, "location_summary": "Stanford, California • Iowa City, Iowa • Baltimore, Maryland + 7 more", "locations": [ { "city": "Stanford", "state": "California" }, { "city": "Iowa City", "state": "Iowa" }, { "city": "Baltimore", "state": "Maryland" }, { "city": "St Louis", "state": "Missouri" }, { "city": "Rochester", "state": "New York" } ], "official_url": "https://clinicaltrials.gov/study/NCT00333398" }, { "nct_id": "NCT05608005", "title": "Study on Two Adjuvanted Dose Levels of Panblok H7+MF59 Compared for Immunogenicity and Safety With an Unadjuvanted Dose of Panblok H7 in Participants 18 Years of Age and Older", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE1", "PHASE2" ], "conditions": [ "Influenza", "Healthy Volunteers" ], "interventions": [ { "name": "Panblok + MF59 Dose 1", "type": "BIOLOGICAL" }, { "name": "Panblok + MF59 Dose 2", "type": "BIOLOGICAL" }, { "name": "Unadjuvanted Panblok Dose 3", "type": "BIOLOGICAL" } ], "intervention_types": [ "BIOLOGICAL" ], "sponsor": "Sanofi Pasteur, a Sanofi Company", "sponsor_class": "INDUSTRY", "healthy_volunteers": true, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 581, "start_date": "2022-11-03", "completion_date": "2024-02-13", "has_results": true, "last_update_posted_date": "2025-09-24", "last_synced_at": "2026-10-12T18:11:53.925Z", "location_count": 16, "location_summary": "Mesa, Arizona • Hallandale, Florida • Hollywood, Florida + 11 more", "locations": [ { "city": "Mesa", "state": "Arizona" }, { "city": "Hallandale", "state": "Florida" }, { "city": "Hollywood", "state": "Florida" }, { "city": "Miami", "state": "Florida" }, { "city": "Saint Augustine", "state": "Florida" } ], "official_url": "https://clinicaltrials.gov/study/NCT05608005" } ] }