Category Ranking

98%

Total Visits

921

Avg Visit Duration

2 minutes

Citations

20

Article Abstract

Background: Neutralizing antibodies targeting the SARS-CoV-2 Spike protein reduce COVID-19-related risk of hospitalization, particularly in high-risk individuals. The COCOPREV-R study aimed to evaluate and compare clinical outcomes in high-risk SARS-CoV-2 patients treated with dual monoclonal antibody therapies and to identify associated virological factors.

Methods: The COCOPREV-R study retrospectively collected real-world data from high-risk patients receiving Bamlanivimab/Etesevimab or Casirivimab/Imdevimab dual monoclonal antibody therapies (22 February 2021 to 15 June 2021).

Results: The study included 1004 patients with COVID-19, of whom 691 received Bamlanivimab/Etesevimab and 313 received Casirivimab/Imdevimab. The alpha variant represented 90.1% of those for whom data were available. The risk of hospitalization within 30 days was lower with Bamlanivimab/Etesevimab (12.7%, CI 95% [9.9-16.3%]) compared to Casirivimab/Imdevimab (28.4%, CI 95% [22.7-35.1%) ( < 0.001). The 30-day mortality rates were comparable between both groups ( = 0.982). Analysis of SARS-CoV-2 PCR negativity showed no difference between the two treatment groups (95.2% [93.0-96.9%] and 93.5% [89.1-96.6%] until day 30, = 0.851 for Bamlanivimab/Etesevimab and Casirivimab/Imdevimab, respectively). Among persistently positive samples with available sequencing results ( = 43), Spike protein changes occurred only in Bamlanivimab/Etesevimab (42.9%) vs. Casirivimab/Imdevimab (0.0%) groups. Q493R (25.0%) and E484K (12.5%) were the most common mutations selected by Bamlanivimab/Etesevimab in follow-up samples. Other factors (immunodepression, comorbidities, and age) did not appear to be associated with the occurrence of Spike protein mutations.

Conclusions: A higher rate of hospitalization was seen with Casirivimab/Imdevimab (RONAPREVE) in comparison with Bamlanivimab/Etesevimab treatment, but with the emergence of Spike mutations only in the Bamlanivimab/Etesevimab group.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11512400PMC
http://dx.doi.org/10.3390/v16101542DOI Listing

Publication Analysis

Top Keywords

dual monoclonal
12
monoclonal antibody
12
antibody therapies
12
spike protein
12
risk hospitalization
8
cocoprev-r study
8
bamlanivimab/etesevimab
8
bamlanivimab/etesevimab casirivimab/imdevimab
8
casirivimab/imdevimab
6
comparison dual
4

Similar Publications

Background: Cancer of unknown primary (CUP) is a challenging malignancy characterized by metastatic tumors with an unidentified primary site, even after extensive pathological and radiographic evaluation. Recent advancements in gene expression profiling and comprehensive genomic profiling (CGP) using next-generation sequencing (NGS) have enabled the identification of potential tissue origins, thereby facilitating personalized treatment strategies. Although most cases of CUP present as adenocarcinomas or poorly differentiated tumors, the treatment remains largely empirical, with limited success from molecularly tailored therapies.

View Article and Find Full Text PDF

Research on the construction method and characterization of neutralizing mouse-canine chimeric antibody against canine distemper virus.

Virology

August 2025

National Key Laboratory of Agricultural Microbiology, Hubei Hongshan Laboratory, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, 430070, China; Key Laboratory of Preventive Veterinary Medicine in Hubei Province, The Cooperative Innovation Center for Sustainable Pig Pr

Canine distemper (CD) is an acute infectious disease that poses significant health risks to canines. Neutralizing monoclonal antibody (mAb) therapy has demonstrated substantial efficacy in prevent CDV infection. However, immune rejection reactions prevent the use of mouse-derived mAbs in the prophylactic protection of CD.

View Article and Find Full Text PDF

Background: Connexin (Cx) hemichannels (HCs) contribute to glioblastoma (GBM) progression by facilitating intercellular communication and releasing pro-tumorigenic molecules, including ATP and glutamate.

Methods: The efficacy of abEC1.1, a monoclonal antibody that inhibits Cx26, Cx30, and Cx32 HCs, was assessed in vitro by measuring invasion capability, dye and Ca uptake, glutamate and ATP release in patient-derived GBM cultures or organoids.

View Article and Find Full Text PDF

Radiation therapy is a fundamental component of cancer treatment, benefiting 50%-70% of patients by selectively targeting malignant tissues. However, radioresistance remains a significant challenge, often driven by epithelial-mesenchymal transition (EMT). EMT increases cancer invasiveness and metastasis by upregulating mesenchymal markers, including vimentin and N-cadherin, and downregulating epithelial markers, such as E-cadherin.

View Article and Find Full Text PDF

Multifunctional Gold Nanoclusters for a Lung Tissue Distribution Study of a Novel Anti-asthma Inhaled Antibody.

Anal Chem

September 2025

Fujian Key Laboratory of Drug Target Discovery and Structural and Functional Research, School of Pharmacy, Fujian Medical University, Fuzhou 350122, China.

Pulmonary delivery of monoclonal antibodies has revolutionized the treatment of various types of lung diseases, such as severe asthma. However, the inconsistent antibody drug concentrations in the lungs and serum highlight the importance of monitoring the actual antibody distribution change in the lungs. In this study, we developed a novel antibody-functionalized gold nanocluster with high spatiotemporal resolution for fluorescence/CT dual-modal imaging based on an antibody targeting an allergic-airway-inflammation-related free cytokine in lungs.

View Article and Find Full Text PDF