ArticleViruses2021
Hydroxypropyl Methylcellulose-Based Nasal Sprays Effectively Inhibit In Vitro SARS-CoV-2 Infection and Spread.
Article in Viruses, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 1 of them a synthesis that pooled it.
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
21 citing papers in PubMed, 1 synthesis or guideline pooled it, 29 citations in OpenAlex.
- Efficacy of Mouth Rinses and Nasal Spray in the Inactivation of SARS-CoV-2: A Systematic Review and Meta-Analysis ofInternational journal of environmental research and public health · 2022Pooled it
- Assessment of safety and intranasal neutralizing antibodies of HPMC-based human anti-SARS-CoV-2 IgG1 nasal spray in healthy volunteers.Scientific reports · 2023Trial
- RETRACTED: Evaluating the efficacy and safety of a novel prophylactic nasal spray in the prevention of SARS-CoV-2 infection: A multi-centre, double blind, placebo-controlled, randomised trial.Journal of clinical virology : the official publication of the Pan American Society for Clinical Virology · 2022Trial
- Inhalable bioadhesive barrier for lung protection and clearance of fine particulate matter.Bioactive materials · 2026Article
- Active protein-capturing hydrogel for broad-spectrum pathogen defense.Science advances · 2026Article
- Drum Filling of Thin-Film Freeze-Dried Monoclonal Antibody Powder in UniDose Powder Nasal Spray System.Pharmaceutical research · 2025Article
- Cyclodextrin-Based Quercetin Powders for Potential Nose-to-Brain Transport: Formulation and In Vitro Assessment.Molecules (Basel, Switzerland) · 2025Article
- Nasal Emulgel's Role in Preventing Coronavirus Infection.Pharmaceutics · 2025Article
- Dry powder formulations of hyperimmune serum.Drug delivery and translational research · 2025Article
- Nasal Spray Disinfectant for Respiratory Infections Based on Functionalized Silver Nanoparticles: A Physicochemical and Docking Approach.Nanomaterials (Basel, Switzerland) · 2025Article
- Article
- Intranasal mask for protecting the respiratory tract against viral aerosols.Nature communications · 2023Article
- Development of Vinpocetine-Loaded Nasal Polymeric Micelles via Nano-Spray-Drying.Pharmaceuticals (Basel, Switzerland) · 2023Article
- Effects of Usnic Acid to Prevent Infections by Creating a Protective Barrier in an In Vitro Study.International journal of molecular sciences · 2023Article
- Safety in Rats of a Novel Nasal Spray Formulation for the Prevention of Airborne Viral Infections.Pharmaceutics · 2023Article
- Article
- Improving Nasal Protection for Preventing SARS-CoV-2 Infection.Biomedicines · 2022Article
- Development and In Vitro-Ex Vivo Evaluation of Novel Polymeric Nasal Donepezil Films for Potential Use in Alzheimer's Disease Using Experimental Design.Pharmaceutics · 2022Article
- Nanoscale Technologies in the Fight against COVID-19: From Innovative Nanomaterials to Computer-Aided Discovery of Potential Antiviral Plant-Derived Drugs.Biomolecules · 2022Review
- Advances in the Prophylaxis of Respiratory Infections by the Nasal and the Oromucosal Route: Relevance to the Fight with the SARS-CoV-2 Pandemic.Pharmaceutics · 2022Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
2 authors at 1 institution in 1 country.
Funding
Abstract
The ongoing coronavirus disease (COVID-19) pandemic has required a variety of non-medical interventions to limit the transmission of the causative agent, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). One such option is over-the-counter nasal sprays that aim to block virus entry and transmission within the nasal cavity. In this study, we assessed the ability of three hydroxypropyl methylcellulose (HPMC)-based powder nasal sprays, produced by Nasaleze, to inhibit SARS-CoV-2 infection and release in vitro. Upon application, the HPMC powder forms a gel-like matrix within the nasal cavity-a process we recapitulated in cell culture. We found that virus release from cells previously infected with SARS-CoV-2 was inhibited by the gel matrix product in a dose-dependent manner, with virus levels reduced by >99.99% over a 72 h period at a dose of 6.4 mg/3.5 cm
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What OpenQuestion holds
Registered trials
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.