{ "api_version": "1", "request": { "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Influenza+Virus+Vaccine&page=15", "query": { "intervention": "Influenza Virus Vaccine", "page": 15 }, "page_size": 10 }, "pagination": { "page": 15, "page_size": 10, "total_count": 1124, "total_pages": 113, "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Influenza+Virus+Vaccine&page=16&page_size=10", "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Influenza+Virus+Vaccine&page=14&page_size=10" }, "source": "remote", "last_synced_at": "2026-10-14T20:16:16.311Z", "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": "NCT02927431", "title": "Study to Evaluate the Efficacy and Safety of Danirixin Co-administered With Oseltamivir in the Treatment of Adults Hospitalized With Influenza", "overall_status": "TERMINATED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE2" ], "conditions": [ "Virus Diseases" ], "interventions": [ { "name": "Danirixin 15 mg FBE", "type": "DRUG" }, { "name": "Danirixin 50 mg FBE", "type": "DRUG" }, { "name": "Placebo", "type": "DRUG" }, { "name": "Oseltamivir 75 mg", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "GlaxoSmithKline", "sponsor_class": "INDUSTRY", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 10, "start_date": "2017-01-19", "completion_date": "2017-05-24", "has_results": true, "last_update_posted_date": "2020-11-30", "last_synced_at": "2026-10-14T20:16:16.311Z", "location_count": 5, "location_summary": "Stamford, Connecticut • Council Bluffs, Iowa • Natchitoches, Louisiana + 2 more", "locations": [ { "city": "Stamford", "state": "Connecticut" }, { "city": "Council Bluffs", "state": "Iowa" }, { "city": "Natchitoches", "state": "Louisiana" }, { "city": "Durham", "state": "North Carolina" }, { "city": "Salem", "state": "Virginia" } ], "official_url": "https://clinicaltrials.gov/study/NCT02927431" }, { "nct_id": "NCT05140148", "title": "Promoting Recovery After STroke With Amantadine", "overall_status": "RECRUITING", "study_type": "INTERVENTIONAL", "phases": [ "PHASE2" ], "conditions": [ "Stroke, Ischemic", "Stroke Hemorrhagic" ], "interventions": [ { "name": "Amantadine", "type": "DRUG" }, { "name": "Placebo", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "University of Pennsylvania", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": "85 Years", "sex": "ALL", "summary": "18 Years to 85 Years" }, "enrollment_count": 60, "start_date": "2022-02-01", "completion_date": "2028-06-30", "has_results": false, "last_update_posted_date": "2026-03-30", "last_synced_at": "2026-10-14T20:16:16.311Z", "location_count": 1, "location_summary": "Philadelphia, Pennsylvania", "locations": [ { "city": "Philadelphia", "state": "Pennsylvania" } ], "official_url": "https://clinicaltrials.gov/study/NCT05140148" }, { "nct_id": "NCT05052697", "title": "A Study to Evaluate the Safety, Tolerability, and Immunogenicity of a Modified RNA Vaccine Against Influenza", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE1", "PHASE2" ], "conditions": [ "Influenza, Human" ], "interventions": [ { "name": "mIRV", "type": "BIOLOGICAL" }, { "name": "bIRV AB", "type": "BIOLOGICAL" }, { "name": "qIRV", "type": "BIOLOGICAL" }, { "name": "QIV", "type": "BIOLOGICAL" }, { "name": "bIRV AA", "type": "BIOLOGICAL" }, { "name": "bIRV BB", "type": "BIOLOGICAL" } ], "intervention_types": [ "BIOLOGICAL" ], "sponsor": "Pfizer", "sponsor_class": "INDUSTRY", "healthy_volunteers": true, "eligibility": { "minimum_age": "18 Years", "maximum_age": "85 Years", "sex": "ALL", "summary": "18 Years to 85 Years" }, "enrollment_count": 1158, "start_date": "2021-09-13", "completion_date": "2023-01-27", "has_results": true, "last_update_posted_date": "2024-03-12", "last_synced_at": "2026-10-14T20:16:16.311Z", "location_count": 100, "location_summary": "Athens, Alabama • Phoenix, Arizona • Tucson, Arizona + 58 more", "locations": [ { "city": "Athens", "state": "Alabama" }, { "city": "Athens", "state": "Alabama" }, { "city": "Phoenix", "state": "Arizona" }, { "city": "Phoenix", "state": "Arizona" }, { "city": "Phoenix", "state": "Arizona" } ], "official_url": "https://clinicaltrials.gov/study/NCT05052697" }, { "nct_id": "NCT03282240", "title": "Safety and Immunogenicity of High-Dose Quadrivalent Influenza Vaccine in Participants ≥65 Years in the US", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE3" ], "conditions": [ "Influenza" ], "interventions": [ { "name": "QIV-HD", "type": "BIOLOGICAL" }, { "name": "Licensed TIV-HD1", "type": "BIOLOGICAL" }, { "name": "Investigational TIV-HD2", "type": "BIOLOGICAL" } ], "intervention_types": [ "BIOLOGICAL" ], "sponsor": "Sanofi Pasteur, a Sanofi Company", "sponsor_class": "INDUSTRY", "healthy_volunteers": true, "eligibility": { "minimum_age": "65 Years", "maximum_age": null, "sex": "ALL", "summary": "65 Years and older" }, "enrollment_count": 2670, "start_date": "2017-09-08", "completion_date": "2018-04-19", "has_results": true, "last_update_posted_date": "2022-04-07", "last_synced_at": "2026-10-14T20:16:16.311Z", "location_count": 36, "location_summary": "Anaheim, California • Redding, California • San Diego, California + 29 more", "locations": [ { "city": "Anaheim", "state": "California" }, { "city": "Redding", "state": "California" }, { "city": "San Diego", "state": "California" }, { "city": "Colorado Springs", "state": "Colorado" }, { "city": "Milford", "state": "Connecticut" } ], "official_url": "https://clinicaltrials.gov/study/NCT03282240" }, { "nct_id": "NCT07464314", "title": "A Study on the Safety and Immune Response of Investigational mRNA Seasonal Flu/COVID-19 Combination Vaccine in Adults", "overall_status": "RECRUITING", "study_type": "INTERVENTIONAL", "phases": [ "PHASE1" ], "conditions": [ "Influenza, Human+COVID-19" ], "interventions": [ { "name": "Investigational mRNA Seasonal Flu/COVID-19 Combination (Flu/COVm) Vaccine", "type": "BIOLOGICAL" }, { "name": "Licensed Seasonal Influenza Vaccine", "type": "BIOLOGICAL" }, { "name": "Licensed COVID-19 Vaccine", "type": "BIOLOGICAL" } ], "intervention_types": [ "BIOLOGICAL" ], "sponsor": "GlaxoSmithKline", "sponsor_class": "INDUSTRY", "healthy_volunteers": false, "eligibility": { "minimum_age": "65 Years", "maximum_age": "85 Years", "sex": "ALL", "summary": "65 Years to 85 Years" }, "enrollment_count": 225, "start_date": "2026-03-09", "completion_date": "2027-06-03", "has_results": false, "last_update_posted_date": "2026-06-30", "last_synced_at": "2026-10-14T20:16:16.311Z", "location_count": 12, "location_summary": "Anniston, Alabama • Little Rock, Arkansas • Fair Oaks, California + 9 more", "locations": [ { "city": "Anniston", "state": "Alabama" }, { "city": "Little Rock", "state": "Arkansas" }, { "city": "Fair Oaks", "state": "California" }, { "city": "San Diego", "state": "California" }, { "city": "Miami", "state": "Florida" } ], "official_url": "https://clinicaltrials.gov/study/NCT07464314" }, { "nct_id": "NCT00902278", "title": "Immune Responses Induced by Different Licensed Influenza Vaccines", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "NA" ], "conditions": [ "Immune Response" ], "interventions": [ { "name": "Flulaval", "type": "BIOLOGICAL" }, { "name": "Fluvirin", "type": "BIOLOGICAL" }, { "name": "Fluzone", "type": "BIOLOGICAL" }, { "name": "Fluarix", "type": "BIOLOGICAL" }, { "name": "Afluria", "type": "BIOLOGICAL" } ], "intervention_types": [ "BIOLOGICAL" ], "sponsor": "University of Massachusetts, Worcester", "sponsor_class": "OTHER", "healthy_volunteers": true, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 193, "start_date": "2008-10", "completion_date": "2016-04", "has_results": true, "last_update_posted_date": "2017-11-20", "last_synced_at": "2026-10-14T20:16:16.311Z", "location_count": 1, "location_summary": "Worcester, Massachusetts", "locations": [ { "city": "Worcester", "state": "Massachusetts" } ], "official_url": "https://clinicaltrials.gov/study/NCT00902278" }, { "nct_id": "NCT05426174", "title": "Study to Assess the Safety and Immunogenicity of Monovalent mRNA NA Vaccine in Adult Participants 18 Years of Age and Older", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE1" ], "conditions": [ "Influenza Immunization", "Healthy Volunteers" ], "interventions": [ { "name": "mRNA NA vaccine", "type": "BIOLOGICAL" }, { "name": "High Dose Quadrivalent Influenza Vaccine", "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": 233, "start_date": "2022-06-09", "completion_date": "2024-01-03", "has_results": false, "last_update_posted_date": "2025-09-15", "last_synced_at": "2026-10-14T20:16:16.311Z", "location_count": 6, "location_summary": "Huntsville, Alabama • Phoenix, Arizona • San Diego, California + 3 more", "locations": [ { "city": "Huntsville", "state": "Alabama" }, { "city": "Phoenix", "state": "Arizona" }, { "city": "San Diego", "state": "California" }, { "city": "Melbourne", "state": "Florida" }, { "city": "Peoria", "state": "Illinois" } ], "official_url": "https://clinicaltrials.gov/study/NCT05426174" }, { "nct_id": "NCT00992433", "title": "H1N1 Vaccine at Two Dose Levels in HIV Positive Adults", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE2" ], "conditions": [ "Influenza" ], "interventions": [ { "name": "Inactivated Influenza H1N1 vaccine", "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": "64 Years", "sex": "ALL", "summary": "18 Years to 64 Years" }, "enrollment_count": 192, "start_date": "2009-11", "completion_date": "2010-11", "has_results": true, "last_update_posted_date": "2012-05-16", "last_synced_at": "2026-10-14T20:16:16.311Z", "location_count": 6, "location_summary": "Iowa City, Iowa • Baltimore, Maryland • St Louis, Missouri + 3 more", "locations": [ { "city": "Iowa City", "state": "Iowa" }, { "city": "Baltimore", "state": "Maryland" }, { "city": "St Louis", "state": "Missouri" }, { "city": "Cincinnati", "state": "Ohio" }, { "city": "Houston", "state": "Texas" } ], "official_url": "https://clinicaltrials.gov/study/NCT00992433" }, { "nct_id": "NCT03845231", "title": "Mucosal and Systemic Immunity After Viral Challenge of Healthy Volunteers Vaccinated With Inactivated Influenza Vaccine Via the Intranasal Versus Intramuscular Route", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE2" ], "conditions": [ "Influenza" ], "interventions": [ { "name": "Flucelvax(R)", "type": "BIOLOGICAL" }, { "name": "Human Challenge virus", "type": "OTHER" } ], "intervention_types": [ "BIOLOGICAL", "OTHER" ], "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)", "sponsor_class": "NIH", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": "55 Years", "sex": "ALL", "summary": "18 Years to 55 Years" }, "enrollment_count": 82, "start_date": "2019-04-29", "completion_date": "2020-10-28", "has_results": false, "last_update_posted_date": "2020-11-10", "last_synced_at": "2026-10-14T20:16:16.311Z", "location_count": 1, "location_summary": "Bethesda, Maryland", "locations": [ { "city": "Bethesda", "state": "Maryland" } ], "official_url": "https://clinicaltrials.gov/study/NCT03845231" }, { "nct_id": "NCT04789577", "title": "A Study to Evaluate the Safety and Immunogenicity of GlaxoSmithKline Biologicals' Influenza Vaccine GSK3206641A Administered in Adults 18 to 64 Years of Age and 65 Years of Age and Older", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE2" ], "conditions": [ "Influenza, Human" ], "interventions": [ { "name": "FLU-Q-PAN H7N9 Formulation 1", "type": "BIOLOGICAL" }, { "name": "FLU-Q-PAN H7N9 Formulation 2", "type": "BIOLOGICAL" }, { "name": "FLU-Q-PAN H7N9 Formulation 3", "type": "BIOLOGICAL" }, { "name": "AS03B", "type": "BIOLOGICAL" }, { "name": "AS03A", "type": "BIOLOGICAL" }, { "name": "Placebo", "type": "DRUG" } ], "intervention_types": [ "BIOLOGICAL", "DRUG" ], "sponsor": "GlaxoSmithKline", "sponsor_class": "INDUSTRY", "healthy_volunteers": true, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 833, "start_date": "2021-03-16", "completion_date": "2022-09-12", "has_results": true, "last_update_posted_date": "2023-10-10", "last_synced_at": "2026-10-14T20:16:16.311Z", "location_count": 8, "location_summary": "Stockbridge, Georgia • Meridian, Idaho • Cary, North Carolina + 5 more", "locations": [ { "city": "Stockbridge", "state": "Georgia" }, { "city": "Meridian", "state": "Idaho" }, { "city": "Cary", "state": "North Carolina" }, { "city": "Wilmington", "state": "North Carolina" }, { "city": "Cleveland", "state": "Ohio" } ], "official_url": "https://clinicaltrials.gov/study/NCT04789577" } ] }