1119 completed, 85 unknown, 53 recruiting, 43 terminated. 348 Phase 2, 289 Phase 3, 261 Phase 1, 235 Phase 4, 177 Not applicable.
Follow Influenza: new trials by email Literature Review of Influenza trials Research Report on Influenza
Tick up to 5 trials to compare them side by side (eligibility, arms, endpoints, adverse events) in a Literature Matrix.
| Trial | Phase | Status | Sponsor | Enrollment | Start | Updated |
|---|---|---|---|---|---|---|
| A Human Influenza Transmission Study Using Naturally Infected Community Donors Influenza Donor Visit, Influenza Recipient Inpatient Exposures Sessions - Influenza | Not applicable | Not yet recruiting | Emory University | 150 | 2026-12-01 | 2026-09-11 |
| A Trial of RLX-2508-102 in Healthy Volunteers RLX-2508 - Influenza | Early Phase 1 | Not yet recruiting | Atridia Pty Ltd. | 101 | 2026-11-15 | 2026-10-14 |
| Immunogenicity of Standard-Dose Versus High-Dose Influenza Vaccines in Older Adults in Singapore High-dose influenza vaccine, Standard-dose influenza vaccine - Influenza | Phase 4 | Not yet recruiting | Tan Tock Seng Hospital | 150 | 2026-11-01 | 2026-10-20 |
| BPL-1357 Against H1N1 Influenza Virus Challenge BPL-1357 IM, BPL-1357 IN, Placebo IM - Influenza, Human | Phase 2 | Recruiting | National Institute of Allergy and Infectious Diseases (NIAID) | 129 | 2026-10-27 | 2026-10-22 |
| A Study of SYH2085 Tablets Compared With Placebo in Chinese Adult Patients With Uncomplicated Influenza. SYH2085, Placebo - Influenza | Phase 2 | Not yet recruiting | CSPC ZhongQi Pharmaceutical Technology Co., Ltd. | 213 | 2026-10-10 | 2026-09-01 |
| A Study to Evaluate the Immune Responses of Subunit Influenza Vaccine in Healthy Adults Group A, Group B - Influenza | Phase 4 | Active not recruiting | Ab&B Bio-tech Co., Ltd.JS | 138 | 2026-10-10 | 2026-10-16 |
| Abbott ID NOW Point-of-Care Testing Abbott ID NOW Point-of-Care Testing, Standard Laboratory-Based RT-PCR Diagnostic Pathway - Influenza, Influenza-like Illness | Not applicable | Recruiting | China Medical University Hospital | 1080 | 2026-10-01 | 2026-09-29 |
| Longitudinal Deep Phenotyping of Central Mechanisms in Dysosmia: A Pilot Study Using Electrobulbogram (EBG), Functional MRI (fMRI), and Diffusion-Weighted Imaging (DWI) Respiratory Tract Infection, Smell Disorder | Recruiting | National Institute on Deafness and Other Communication Disorders (NIDCD) | 80 | 2026-10-01 | 2026-10-09 | |
| A Phase IV Clinical Trial of Influenza Vaccine (Split Virion), Inactivatedin (Anflu®) Pregnant Women (AnFLU-PREG) Anflu®, Vaxigrip® - Influenza | Phase 4 | Not yet recruiting | Sinovac Biotech Co., Ltd | 150 | 2026-10-01 | 2026-09-21 |
| Light-based Immunomodulation for Guarding Against Human Respiratory Tract Infections RD-X19, RD-X19 Sham - COVID-19 Respiratory Infection, Influenza | Not applicable | Recruiting | David Moss | 130 | 2026-10-01 | 2026-10-08 |
| Flu COVID Vaccine Views Survey - Influenza, COVID-19 | Not yet recruiting | George Washington University | 550 | 2026-10-01 | 2026-10-13 | |
| Safety and Immunogenicity of Chimeric Hemagglutinin mRNA Vaccine Candidates cH15/3, cH4/3, cH5/1N1 - Influenza | Phase 1 | Not yet recruiting | National Institute of Allergy and Infectious Diseases (NIAID) | 60 | 2026-09-18 | 2026-10-16 |
| Rule-Based High-Risk Flu Risk reduction - Influenza, Vaccination | Not applicable | Completed | Geisinger Clinic | 51218 | 2026-09-01 | 2026-10-16 |
| Effectiveness of An Influenza/COVID-19 Vaccine (mCombriax [mRNA-1083]) in Adults ≥ 65 Years mCombriax® (mRNA-1083), Efluelda® (TIV-HD) and Spikevax® (mRNA-1273) - COVID-19, Influenza | Phase 4 | Not yet recruiting | Tor Biering-Sørensen | 410000 | 2026-09-01 | 2026-08-27 |
| Smart Analysis and Decision-Making for Emerging Infectious Diseases Multi-Agent Integrated Smart Toolkit for Emerging Infectious Diseases, Routine Practices - Emerging Infectious Diseases, COVID-19 | Not applicable | Enrolling by invitation | Peking University | 108 | 2026-08-10 | 2026-08-19 |
| Study to Assess Safety and Immunogenicity of an Egg-based H5N8 Influenza Vaccine at Multiple Dose Levels Adjuvanted With Matrix-M in Healthy Participants 18 Years of Age and Above. Flu H5 egg pandemic low dose vaccine, with adjuvant, Flu H5 Egg Pandemic medium dose vaccine, with adjuvant, Flu H5 Egg Pandemic high dose vaccine, with adjuvant - Healthy Volunteers, Influenza | Phase 1 / Phase 2 | Recruiting | Sanofi | 640 | 2026-08-03 | 2026-09-15 |
| H1ssF Flu Vaccine Clinical Trial H1ssF vaccine, Flucelvax seasonal vaccine - Influenza | Phase 1 | Withdrawn | University of Minnesota | 2026-08-01 | 2026-09-21 | |
| Effect of Surgical Masks in Preventing Acute Respiratory Infections Surgical masks - Acute Respiratory Infections (ARIs), Influenza | Not applicable | Enrolling by invitation | Chiba University | 2400 | 2026-07-31 | 2026-09-23 |
| Patient-Centered Practical Vaccine Talk For Busy Clinicians Provider communication training - Influenza, COVID-19 | Not applicable | Enrolling by invitation | University of Massachusetts, Worcester | 24500 | 2026-06-24 | 2026-06-29 |
| Phase 2a Study of the Efficacy and Safety of TRX-100 in a Human Influenza A Challenge Model TRX-100, Placebo, Influenza A/France/759/2021 (H1N1) virus - Influenza | Phase 2 | Not yet recruiting | Traws Pharma, Inc. | 165 | 2026-06-01 | 2026-03-31 |
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Influenza Vaccines (261) · Oseltamivir (68) · fluarix (43) · FluMist (41) · vaxigrip (34) · Sodium Chloride (21) · Vaccines (17) · baloxavir (17) · Fluzone High-Dose (14) · fluad vaccine (13) · FluBlok (12) · Saline Solution (12) · peramivir (12) · Inflexal V (11) · Adjuvants, Pharmaceutic (9)
GlaxoSmithKline (147) · National Institute of Allergy and Infectious Diseases (NIAID) (141) · Sanofi Pasteur, a Sanofi Company (94) · MedImmune LLC (33) · Novartis Vaccines (30) · Seqirus (26) · Stanford University (26) · Alachua Government Services, Inc. (24) · Crucell Holland BV (18) · Hoffmann-La Roche (18) · Novartis (16) · Sinovac Biotech Co., Ltd (14) · ModernaTX, Inc. (13) · Sanofi (13) · Emory University (12)
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PMID 28963118, PMID 19261173, PMID 21857263, PMID 26432909, PMID 26787832, PMID 28325769, PMID 29465480, PMID 29706550, PMID 30066805, PMID 33215698, PMID 36715243, PMID 39550717, PMID 42834081, PMID 18420314, PMID 18599164, PMID 19540952, PMID 19588665, PMID 20018364, PMID 20018365, PMID 21352939, PMID 21378375, PMID 21615847, PMID 21906647, PMID 22172502, PMID 22418809, PMID 22537984, PMID 22885014, PMID 22906937, PMID 24041010, PMID 24606983, PMID 25148380, PMID 25184864, PMID 25222307, PMID 26042486, PMID 26069949, PMID 26176592, PMID 26391974, PMID 28369198, PMID 28446441, PMID 29253090, PMID 29572291, PMID 30325891, PMID 30953061, PMID 31079849, PMID 32868130, PMID 34174187, PMID 35585696, PMID 35639525, PMID 36328438, PMID 37739792
2009 (19), U19AI057229 (19), 2015 (7), R01AI135029 (7), 2008 (6), 2014 (5), 2018 (5), P30AG034532 (5), U19AI090019 (4), 2016 (3), N01AI30025 (3), 2023 (2), N01AI30039 (2), 1UC1AI062373-01 (1), 2005 (1)