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1.
Mayo Clinic Proceedings ; 2022.
Article in English | ScienceDirect | ID: covidwho-1702875

ABSTRACT

Bamlanivimab-etesevimab and casirivimab-imdevimab are authorized by the US FDA for emergency treatment of mild to moderate COVID-19 in high-risk persons. There has been no study comparing their clinical efficacy. In this retrospective study of 681 patients with mild to moderate COVID-19 during a period dominated by SARS-CoV-2 wild-type and alpha variants, 25 patients (3.67%) progressed to develop severe outcome requiring hospitalization and oxygen supplementation within 30 days after monoclonal antibody infusion. Severe outcome was significantly higher among 181 patients who were treated with casirivimab-imdevimab when compared to 500 patients who received bamlanivimab-etesevimab (6.7% vs. 2.6%, p=0.01). Casirivimab-imdevimab had higher odds of severe outcomes when compared to bamlanivimab-etesevimab (Odds Ratio: 2.67, 95% confidence interval, 1.17-6.06). The demographic and clinical characteristics, and the time to monoclonal antibody infusion, of the two treatment cohorts were not significantly different. The reason behind this significant difference in the clinical outcomes is unclear, but our observations emphasize potential efficacy differences among anti-spike monoclonal antibodies against COVID-19. Further clinical studies using larger cohort of patients are needed to confirm or refute these observations.

2.
J Infect Dis ; 224(8): 1278-1286, 2021 10 28.
Article in English | MEDLINE | ID: covidwho-1316825

ABSTRACT

BACKGROUND: Bamlanivimab and casirivimab-imdevimab are authorized for treatment of mild to moderate coronavirus disease 2019 (COVID-19) in high-risk patients. We compared the outcomes of patients who received these therapies to identify factors associated with hospitalization and other clinical outcomes. METHODS: Adult patients who received monoclonal antibody from 19 November 2020 to 11 February 2021 were selected and divided into those who received bamlanivimab (n = 2747) and casirivimab-imdevimab (n = 849). The 28-day all-cause and COVID-19-related hospitalizations were compared between the groups. RESULTS: The population included 3596 patients; the median age was 62 years, and 50% were female. All had ≥1 medical comorbidity; 55% had multiple comorbidities. All-cause and COVID-19-related hospitalization rates at 28 days were 3.98% and 2.56%, respectively. After adjusting for medical comorbidities, there was no significant difference in all-cause and COVID-19-related hospitalization rates between bamlanivimab and casirivimab-imdevimab (adjusted hazard ratios [95% confidence interval], 1.4 [.9-2.2] and 1.6 [.8-2.7], respectively). Chronic kidney, respiratory and cardiovascular diseases, and immunocompromised status were associated with higher likelihood of hospitalization. CONCLUSIONS: This observational study on the use of bamlanivimab and casirivimab-imdevimab in high-risk patients showed similarly low rates of hospitalization. The number and type of medical comorbidities are associated with hospitalizations after monoclonal antibody treatment.


Subject(s)
Antibodies, Monoclonal, Humanized/therapeutic use , COVID-19/drug therapy , Adolescent , Adult , Aged , Aged, 80 and over , COVID-19/diagnosis , COVID-19/epidemiology , Drug Combinations , Female , Hospitalization/statistics & numerical data , Humans , Male , Middle Aged , Multimorbidity , Retrospective Studies , Risk Factors , SARS-CoV-2/isolation & purification , Severity of Illness Index , Treatment Outcome , Young Adult
3.
Mayo Clin Proc ; 96(5): 1250-1261, 2021 05.
Article in English | MEDLINE | ID: covidwho-1219872

ABSTRACT

The administration of spike monoclonal antibody treatment to patients with mild to moderate COVID-19 is very challenging. This article summarizes essential components and processes in establishing an effective spike monoclonal antibody infusion program. Rapid identification of a dedicated physical infrastructure was essential to circumvent the logistical challenges of caring for infectious patients while maintaining compliance with regulations and ensuring the safety of our personnel and other patients. Our partnerships and collaborations among multiple different specialties and disciplines enabled contributions from personnel with specific expertise in medicine, nursing, pharmacy, infection prevention and control, electronic health record (EHR) informatics, compliance, legal, medical ethics, engineering, administration, and other critical areas. Clear communication and a culture in which all roles are welcomed at the planning and operational tables are critical to the rapid development and refinement needed to adapt and thrive in providing this time-sensitive beneficial therapy. Our partnerships with leaders and providers outside our institutions, including those who care for underserved populations, have promoted equity in the access of monoclonal antibodies in our regions. Strong support from institutional leadership facilitated expedited action when needed, from a physical, personnel, and system infrastructure standpoint. Our ongoing real-time assessment and monitoring of our clinical program allowed us to improve and optimize our processes to ensure that the needs of our patients with COVID-19 in the outpatient setting are met.


Subject(s)
Antiviral Agents/administration & dosage , COVID-19 , Critical Pathways , Home Infusion Therapy , SARS-CoV-2 , Spike Glycoprotein, Coronavirus , Antibodies, Monoclonal/administration & dosage , COVID-19/epidemiology , COVID-19/therapy , Clinical Protocols , Critical Pathways/organization & administration , Critical Pathways/trends , Efficiency, Organizational , Home Infusion Therapy/methods , Home Infusion Therapy/standards , Humans , Intersectoral Collaboration , Organizational Culture , Program Development/methods , SARS-CoV-2/immunology , SARS-CoV-2/isolation & purification , Severity of Illness Index , Spike Glycoprotein, Coronavirus/antagonists & inhibitors , Spike Glycoprotein, Coronavirus/immunology , United States/epidemiology
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