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Use of Bamlanivimab in Cancer Patients with Mild-to-Moderate COVID-19
Open forum infectious diseases ; 8(Suppl 1):S372-S373, 2021.
Article in English | EuropePMC | ID: covidwho-1563927
ABSTRACT
Background Bamlanivimab is a monoclonal antibody that was granted an emergency use authorization by the US Food and Drug Administration in November 2020 for patients with mild to moderate coronavirus disease 2019 (COVID-19). It initially showed promising results with decreasing hospitalizations and return emergency department visits in immunocompetent patients. We evaluated the role of bamlanivimab in the cancer patient population. Methods We conducted a retrospective matched study of all cancer patients diagnosed with mild to moderate COVID-19 who received bamlanivimab in our acute cancer care center (ACCC) from December 2020 to February 2021. These patients were compared to a control group of cancer patients who presented to our ACCC and were diagnosed with mild to moderate COVID-19 from March to November 2020 before the introduction of bamlanivimab. Control patients were matched by age and underlying malignancy. All patients had a baseline oxygen saturation ≥ 94% and an absolute neutrophil count > 500 mm3. Demographics, clinical characteristics, and outcome that included COVID-related admissions, oxygen desaturation, ICU admission and 30-day mortality were compared in both groups. Results A total of 108 patients were analyzed with 54 patients in each group, of which 59% consisted of hematologic malignancies, and 33% were ≥ 65 years. The presenting symptoms were similar in both groups and mainly consisted of cough, fever, and dyspnea. Patients who received bamlanivimab were less likely to be admitted to the hospital (24% vs. 91%;p< 0.0001), experience oxygen desaturation < 94% during follow-up (11% vs 44%;p=0.0001), require oxygen supplement (7% vs. 44%;p< 0.0001), or be admitted to the ICU (4% vs 15%;p=0.046). No 30-day mortality was observed in the bamlanivimab group with 2 (4%) occurring in the control group. However, the difference was not significant. Conclusion Bamlanivimab decreased hospital and ICU admissions in cancer patients. In addition, bamlanivimab reduced oxygen requirement and the risk of hypoxia and progression to severe disease in this patient population. Disclosures Samuel L. Aitken, PharmD, MPH, BCIDP, Melinta Therapeutoics (Individual(s) Involved Self) Consultant, Grant/Research Support
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Collection: Databases of international organizations Database: EuropePMC Language: English Journal: Open forum infectious diseases Year: 2021 Document Type: Article

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Collection: Databases of international organizations Database: EuropePMC Language: English Journal: Open forum infectious diseases Year: 2021 Document Type: Article