{ "api_version": "1", "request": { "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Influenza+Vaccine&page=6", "query": { "intervention": "Influenza Vaccine", "page": 6 }, "page_size": 10 }, "pagination": { "page": 6, "page_size": 10, "total_count": 1154, "total_pages": 116, "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Influenza+Vaccine&page=7&page_size=10", "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Influenza+Vaccine&page=5&page_size=10" }, "source": "remote", "last_synced_at": "2026-10-07T03:47:21.542Z", "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": "NCT01249625", "title": "The Respiratory Protection Effectiveness Clinical Trial", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "NA" ], "conditions": [ "Influenza", "Respiratory Syncytial Viruses", "Paramyxoviridae Infections", "Coronavirus", "Rhinovirus" ], "interventions": [ { "name": "N95 Respirator", "type": "DEVICE" }, { "name": "Medical/surgical mask", "type": "DEVICE" } ], "intervention_types": [ "DEVICE" ], "sponsor": "Johns Hopkins University", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": "100 Years", "sex": "ALL", "summary": "18 Years to 100 Years" }, "enrollment_count": 2862, "start_date": "2010-12", "completion_date": "2018-03", "has_results": true, "last_update_posted_date": "2019-04-25", "last_synced_at": "2026-10-07T03:47:21.542Z", "location_count": 7, "location_summary": "Aurora, Colorado • Denver, Colorado • Washington D.C., District of Columbia + 3 more", "locations": [ { "city": "Aurora", "state": "Colorado" }, { "city": "Denver", "state": "Colorado" }, { "city": "Denver", "state": "Colorado" }, { "city": "Washington D.C.", "state": "District of Columbia" }, { "city": "Baltimore", "state": "Maryland" } ], "official_url": "https://clinicaltrials.gov/study/NCT01249625" }, { "nct_id": "NCT00987350", "title": "Safety Study of Seasonal Influenza Vaccine by Jet Injection", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE4" ], "conditions": [ "Healthy Adults" ], "interventions": [ { "name": "LectraJet", "type": "DEVICE" }, { "name": "TIV by jet injection", "type": "DEVICE" }, { "name": "Seasonal Trivalent Influenza Vaccine", "type": "BIOLOGICAL" } ], "intervention_types": [ "DEVICE", "BIOLOGICAL" ], "sponsor": "University of Maryland, Baltimore", "sponsor_class": "OTHER", "healthy_volunteers": true, "eligibility": { "minimum_age": "18 Years", "maximum_age": "49 Years", "sex": "ALL", "summary": "18 Years to 49 Years" }, "enrollment_count": 60, "start_date": "2010-01", "completion_date": "2010-05", "has_results": false, "last_update_posted_date": "2021-05-03", "last_synced_at": "2026-10-07T03:47:21.542Z", "location_count": 1, "location_summary": "College Park, Maryland", "locations": [ { "city": "College Park", "state": "Maryland" } ], "official_url": "https://clinicaltrials.gov/study/NCT00987350" }, { "nct_id": "NCT05858450", "title": "This Study Intends to Describe the Characteristics of Patients Given the Pfizer-BioNTech Bivalent mRNA COVID-19 Vaccine and Any Commercially Available Influenza Vaccines at the Same Time Versus at Different Times.", "overall_status": "COMPLETED", "study_type": "OBSERVATIONAL", "phases": [], "conditions": [ "Influenza, Human", "COVID-19" ], "interventions": [ { "name": "Comirnaty", "type": "BIOLOGICAL" }, { "name": "Quadrivalent Influenza Vaccine", "type": "BIOLOGICAL" } ], "intervention_types": [ "BIOLOGICAL" ], "sponsor": "Pfizer", "sponsor_class": "INDUSTRY", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 3442996, "start_date": "2023-05-05", "completion_date": "2023-05-12", "has_results": true, "last_update_posted_date": "2024-09-20", "last_synced_at": "2026-10-07T03:47:21.542Z", "location_count": 1, "location_summary": "New York, New York", "locations": [ { "city": "New York", "state": "New York" } ], "official_url": "https://clinicaltrials.gov/study/NCT05858450" }, { "nct_id": "NCT02545543", "title": "A Study to Evaluate the Immunogenicity and Safety of Seqirus Quadrivalent Influenza Vaccine (QIV) in a Pediatric Population 5 Through 17 Years of Age", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE3" ], "conditions": [ "Influenza, Human" ], "interventions": [ { "name": "Seqirus QIV", "type": "BIOLOGICAL" }, { "name": "Comparator QIV", "type": "BIOLOGICAL" } ], "intervention_types": [ "BIOLOGICAL" ], "sponsor": "Seqirus", "sponsor_class": "INDUSTRY", "healthy_volunteers": true, "eligibility": { "minimum_age": "5 Years", "maximum_age": "17 Years", "sex": "ALL", "summary": "5 Years to 17 Years" }, "enrollment_count": 2278, "start_date": "2015-09", "completion_date": "2016-06", "has_results": true, "last_update_posted_date": "2018-05-23", "last_synced_at": "2026-10-07T03:47:21.542Z", "location_count": 32, "location_summary": "Huntsville, Alabama • Madera, California • Ontario, California + 29 more", "locations": [ { "city": "Huntsville", "state": "Alabama" }, { "city": "Madera", "state": "California" }, { "city": "Ontario", "state": "California" }, { "city": "Redding", "state": "California" }, { "city": "Sacramento", "state": "California" } ], "official_url": "https://clinicaltrials.gov/study/NCT02545543" }, { "nct_id": "NCT02243774", "title": "Mail Outreach To Increase Vaccination Acceptance Through Engagement", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "NA" ], "conditions": [ "Influenza, Human", "Influenza", "Human Flu" ], "interventions": [ { "name": "Core letter signed by Surgeon General", "type": "BEHAVIORAL" }, { "name": "Core letter signed by the Director of the National Vaccine Program", "type": "BEHAVIORAL" }, { "name": "Core letter signed by Surgeon General + implementation prompt", "type": "BEHAVIORAL" }, { "name": "Core letter signed by SG + enhanced implementation prompt", "type": "BEHAVIORAL" } ], "intervention_types": [ "BEHAVIORAL" ], "sponsor": "Brigham and Women's Hospital", "sponsor_class": "OTHER", "healthy_volunteers": true, "eligibility": { "minimum_age": "66 Years", "maximum_age": null, "sex": "ALL", "summary": "66 Years and older" }, "enrollment_count": 228000, "start_date": "2014-09", "completion_date": "2015-09", "has_results": false, "last_update_posted_date": "2017-07-12", "last_synced_at": "2026-10-07T03:47:21.542Z", "location_count": 1, "location_summary": "Baltimore, Maryland", "locations": [ { "city": "Baltimore", "state": "Maryland" } ], "official_url": "https://clinicaltrials.gov/study/NCT02243774" }, { "nct_id": "NCT01431326", "title": "Pharmacokinetics of Understudied Drugs Administered to Children Per Standard of Care", "overall_status": "COMPLETED", "study_type": "OBSERVATIONAL", "phases": [], "conditions": [ "Adenovirus", "Anesthesia", "Anxiety", "Anxiolysis", "Autism", "Autistic Disorder", "Bacterial Meningitis", "Bacterial Septicemia", "Benzodiazepine", "Bipolar Disorder", "Bone and Joint Infections", "Central Nervous System Infections", "Convulsions", "Cytomegalovirus Retinitis", "Early-onset Schizophrenia Spectrum Disorders", "Epilepsy", "General Anesthesia", "Gynecologic Infections", "Herpes Simplex Virus", "Infantile Hemangioma", "Infection", "Inflammation", "Inflammatory Conditions", "Intra-abdominal Infections", "Lower Respiratory Tract Infections", "Migraines", "Pain", "Pneumonia", "Schizophrenia", "Sedation", "Seizures", "Skeletal Muscle Spasms", "Skin and Skin-structure Infections", "Treatment-resistant Schizophrenia", "Urinary Tract Infections", "Withdrawal", "Sepsis", "Gram-negative Infection", "Bradycardia", "Cardiac Arrest", "Cardiac Arrhythmia", "Staphylococcal Infections", "Nosocomial Pneumonia", "Neuromuscular Blockade", "Methicillin Resistant Staphylococcus Aureus", "Endocarditis", "Neutropenia", "Headache", "Fibrinolytic Bleeding", "Pulmonary Arterial Hypertension", "CMV Retinitis", "Hypertension", "Chronic Kidney Diseases", "Hyperaldosteronism", "Hypokalemia", "Heart Failure", "Hemophilia", "Heavy Menstrual Bleeding", "Insomnia" ], "interventions": [ { "name": "The POPS study is collecting PK data on children prescribed the following drugs of interest per standard of care:", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "Daniel Benjamin", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": null, "maximum_age": "21 Years", "sex": "ALL", "summary": "Up to 21 Years" }, "enrollment_count": 3520, "start_date": "2011-11", "completion_date": "2019-11", "has_results": false, "last_update_posted_date": "2023-09-06", "last_synced_at": "2026-10-07T03:47:21.542Z", "location_count": 43, "location_summary": "Anchorage, Alaska • Little Rock, Arkansas • La Jolla, California + 37 more", "locations": [ { "city": "Anchorage", "state": "Alaska" }, { "city": "Little Rock", "state": "Arkansas" }, { "city": "La Jolla", "state": "California" }, { "city": "Los Angeles", "state": "California" }, { "city": "Los Angeles", "state": "California" } ], "official_url": "https://clinicaltrials.gov/study/NCT01431326" }, { "nct_id": "NCT02545868", "title": "A Study to Evaluate the Effects of Ocrelizumab on Immune Responses In Participants With Relapsing Forms of Multiple Sclerosis", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE3" ], "conditions": [ "Multiple Sclerosis, Relapsing-Remitting" ], "interventions": [ { "name": "23-PPV", "type": "BIOLOGICAL" }, { "name": "13-PCV Booster", "type": "BIOLOGICAL" }, { "name": "Influenza Vaccine", "type": "BIOLOGICAL" }, { "name": "KLH", "type": "BIOLOGICAL" }, { "name": "OCR", "type": "DRUG" }, { "name": "TT Vaccine", "type": "BIOLOGICAL" } ], "intervention_types": [ "BIOLOGICAL", "DRUG" ], "sponsor": "Hoffmann-La Roche", "sponsor_class": "INDUSTRY", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": "55 Years", "sex": "ALL", "summary": "18 Years to 55 Years" }, "enrollment_count": 102, "start_date": "2015-10-27", "completion_date": "2021-09-21", "has_results": true, "last_update_posted_date": "2024-03-26", "last_synced_at": "2026-10-07T03:47:21.542Z", "location_count": 20, "location_summary": "Cullman, Alabama • Tucson, Arizona • Fullerton, California + 17 more", "locations": [ { "city": "Cullman", "state": "Alabama" }, { "city": "Tucson", "state": "Arizona" }, { "city": "Fullerton", "state": "California" }, { "city": "La Jolla", "state": "California" }, { "city": "Miami", "state": "Florida" } ], "official_url": "https://clinicaltrials.gov/study/NCT02545868" }, { "nct_id": "NCT01997450", "title": "A Case Control Study of the Effectiveness of Q/LAIV Versus Inactivated Influenza Vaccine and No Vaccine in Subjects 2-17 Years of Age", "overall_status": "TERMINATED", "study_type": "OBSERVATIONAL", "phases": [], "conditions": [ "Influenza Vaccine Effectiveness" ], "interventions": [], "intervention_types": [], "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": 4121, "start_date": "2013-12-02", "completion_date": "2016-04-15", "has_results": false, "last_update_posted_date": "2025-03-10", "last_synced_at": "2026-10-07T03:47:21.542Z", "location_count": 8, "location_summary": "Gainesville, Florida • Bloomington, Minnesota • Winston-Salem, North Carolina + 5 more", "locations": [ { "city": "Gainesville", "state": "Florida" }, { "city": "Bloomington", "state": "Minnesota" }, { "city": "Winston-Salem", "state": "North Carolina" }, { "city": "Akron", "state": "Ohio" }, { "city": "Portland", "state": "Oregon" } ], "official_url": "https://clinicaltrials.gov/study/NCT01997450" }, { "nct_id": "NCT01310413", "title": "Monovalent H5N1 Vaccine GSK1557484A in Children 6 Months to < 18 Years of Age", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE3" ], "conditions": [ "Influenza", "Influenza Vaccines" ], "interventions": [ { "name": "Influenza A (H5N1) Virus monovalent vaccine", "type": "BIOLOGICAL" }, { "name": "Saline placebo", "type": "BIOLOGICAL" } ], "intervention_types": [ "BIOLOGICAL" ], "sponsor": "GlaxoSmithKline", "sponsor_class": "INDUSTRY", "healthy_volunteers": true, "eligibility": { "minimum_age": "6 Months", "maximum_age": "17 Years", "sex": "ALL", "summary": "6 Months to 17 Years" }, "enrollment_count": 842, "start_date": "2011-03-07", "completion_date": "2014-01-26", "has_results": true, "last_update_posted_date": "2021-11-01", "last_synced_at": "2026-10-07T03:47:21.542Z", "location_count": 11, "location_summary": "Paramount, California • Sacramento, California • Newton, Kansas + 8 more", "locations": [ { "city": "Paramount", "state": "California" }, { "city": "Sacramento", "state": "California" }, { "city": "Newton", "state": "Kansas" }, { "city": "Bardstown", "state": "Kentucky" }, { "city": "Metairie", "state": "Louisiana" } ], "official_url": "https://clinicaltrials.gov/study/NCT01310413" }, { "nct_id": "NCT00976820", "title": "Safety and Immunogenicity of H1N1 Vaccines in Children Aged 6 Months to Less Than 9 Years of Age", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE2" ], "conditions": [ "Influenza" ], "interventions": [ { "name": "GSK2340274A", "type": "BIOLOGICAL" }, { "name": "GSK2340273A", "type": "BIOLOGICAL" } ], "intervention_types": [ "BIOLOGICAL" ], "sponsor": "GlaxoSmithKline", "sponsor_class": "INDUSTRY", "healthy_volunteers": true, "eligibility": { "minimum_age": "6 Months", "maximum_age": "8 Years", "sex": "ALL", "summary": "6 Months to 8 Years" }, "enrollment_count": 323, "start_date": "2009-10-20", "completion_date": "2011-03-21", "has_results": true, "last_update_posted_date": "2017-12-12", "last_synced_at": "2026-10-07T03:47:21.542Z", "location_count": 17, "location_summary": "Conway, Arkansas • Little Rock, Arkansas • Sacramento, California + 14 more", "locations": [ { "city": "Conway", "state": "Arkansas" }, { "city": "Little Rock", "state": "Arkansas" }, { "city": "Sacramento", "state": "California" }, { "city": "San Francisco", "state": "California" }, { "city": "Arkansas City", "state": "Kansas" } ], "official_url": "https://clinicaltrials.gov/study/NCT00976820" } ] }