Trial reportAntimicrobial agents and chemotherapy2017
Phase 2 Randomized Trial of the Safety and Efficacy of MHAA4549A, a Broadly Neutralizing Monoclonal Antibody, in a Human Influenza A Virus Challenge Model.
Trial report in Antimicrobial agents and chemotherapy, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 57 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
57 citing papers in PubMed, 76 citations in OpenAlex.
- Prophylactic Efficacy of CD388, a Novel Drug-Fc Conjugate, in a Human Influenza A/H3N2 Virus Challenge Model: A Randomized, Controlled Phase 2a Study.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2025Trial
- A Randomized, Placebo-Controlled Trial to Evaluate the Safety and Efficacy of VIR-2482 in Healthy Adults for Prevention of Influenza A Illness (PENINSULA).Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2024Trial
- Safety and Efficacy of CR6261 in an Influenza A H1N1 Healthy Human Challenge Model.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2021Trial
- Pharmacokinetics of the Monoclonal Antibody MHAA4549A Administered in Combination With Oseltamivir in Patients Hospitalized With Severe Influenza A Infection.Journal of clinical pharmacology · 2020Trial
- A Phase 2 Randomized, Double-Blind, Placebo-Controlled Trial of MHAA4549A, a Monoclonal Antibody, plus Oseltamivir in Patients Hospitalized with Severe Influenza A Virus Infection.Antimicrobial agents and chemotherapy · 2020Trial
- Trial
- Polyclonal breast milk-derived secretory IgA confers broad antiviral protection against multiple respiratory viruses.Science advances · 2026Article
- Nonclinical investigation of the potential of MHAA4549A, an anti-influenza A therapeutic antibody, to mediate antibody-dependent enhancement.Toxicological sciences : an official journal of the Society of Toxicology · 2026Article
- From neuraminidase inhibitors to novel mechanisms: expanding therapeutic strategies against influenza.Frontiers in cellular and infection microbiology · 2026Review
- Direct airway delivery of a humanized anti-H7N9 neutralizing antibody broadly protects against divergent H7 influenza viruses in the mouse model.Journal of virology · 2025Article
- Review
- Multivariate Host-Pathogen Interactions Driving Heterogeneous Viral Shedding and CD8medRxiv : the preprint server for health sciences · 2025Article
- Polyclonal and Monoclonal Antibodies for the Treatment and Prevention of Influenza.The Journal of infectious diseases · 2025Review
- Preferential apical infection and spread of human metapneumovirus highlights the importance of inhaled delivery of neutralizing monoclonal antibody to treat established infections.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
- Intranasal administration of a panreactive influenza antibody reveals Fc-independent mode of protection.Scientific reports · 2025Article
- Article
- Antiviral strategies against influenza virus: an update on approved and innovative therapeutic approaches.Cellular and molecular life sciences : CMLS · 2025Review
- How Broadly Neutralising Antibodies Are Redefining Immunity to Influenza.Antibodies (Basel, Switzerland) · 2025Review
- Monoclonal antibodies against influenza viruses: a clinical trials review.Frontiers in immunology · 2025Review
- Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
19 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
MHAA4549A, a human monoclonal antibody targeting the hemagglutinin stalk region of influenza A virus (IAV), is being developed as a therapeutic for patients hospitalized with severe IAV infection. The safety and efficacy of MHAA4549A were assessed in a randomized, double-blind, placebo-controlled, dose-ranging study in a human IAV challenge model. One hundred healthy volunteers were inoculated with A/Wisconsin/67/2005 (H3N2) IAV and, 24 to 36 h later, administered a single intravenous dose of either placebo, MHAA4549A (400, 1,200, or 3,600 mg), or a standard oral dose of oseltamivir. Subjects were assessed for safety, pharmacokinetics (PK), and immunogenicity. The intent-to-treat-infected (ITTI) population was assessed for changes in viral load, influenza symptoms, and inflammatory biomarkers. MHAA4549A was well tolerated in all IAV challenge subjects. The 3,600-mg dose of MHAA4549A significantly reduced the viral burden relative to that of the placebo as determined by the area under the curve (AUC) of nasopharyngeal virus infection, quantified using quantitative PCR (98%) and 50% tissue culture infective dose (TCID
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.