EARLY TREATMENT WITH BAMLANIVIMAB ALONE DOES NOT PREVENT COVID-19 HOSPITALIZATION AND ITS POST-ACUTE SEQUELAE. A REAL EXPERIENCE IN UMBRIA, ITALY.
MD. Elisabetta Schiaroli, Giuseppe Vittorio De Socio, Laura Martinelli Martinelli, Lisa Malincarne, Martina Savoia, Anna Laura Spinelli, Daniela Francisci
Mediterranean Journal of Hematology and Infectious Diseases, doi:10.4084/mjhid.2021.061
Background and Objective: The use of monoclonal antibodies to the SARS-Cov-2 spike protein for early treatment of COVID-19 disease is being evaluated, with only phase 2 studies available to date. The emergency authorization of bamlanivimab monotherapy was obtained in November 2020 by the FDA and in March 2021 by Italian agency AIFA. Its use was then revoked in April 2021 by both. This study reports the results of bamlanivimab utilization in monotherapy in Umbria (Italian region) to verify whether, in a population with multiple risk factors, comparable results to the phase 2 BLAZE1 trial had been obtained. Methods: Between March and April 2021, a retrospective observational study was performed on patients treated with bamlanivimab. Demographic and clinical characteristics before and after infusion were evaluated. Moreover, a telephone interview was conducted about 30 days after the infusion to evaluate the overall course.
Results: All patients had an early infection (mean 4±1.73 days), almost all by alpha variant (97%). No adverse events to treatment were observed. Altogether within 30 days, the hospitalization rate was 20%, 15% for COVID-19 related pathologies, versus 4% at 11 days in the BLAZE1 phase 2 study. In addition, worsening of some symptoms observed at baseline such as asthenia (77 vs. 51.3%), shortness of breath (38 vs. 23%) was registered, as well as the onset of non-restorative sleep (41%).
Conclusion: The clinical outcome after bamlanivimab monotherapy was far below the expectation despite the patients had been infected by a theoretically sensitive viral variant.
References
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doi:10.1007/s11255-021-02783-0Chen, Nirula, Heller, Gottlieb, Boscia et al., BLAZE-1 Investigators. SARS-CoV-2 Neutralizing Antibody LY-CoV555 in Outpatients with Covid-19, N Engl J Med,
doi:10.1056/NEJMoa2029849Jones, Brown-Augsburger, Corbett, Westendorf, Davies et al., The nutralizing antibody, LY-CoV555, protects against SARS-CoV-2 infection in nonhuman primates, Sci Transl Med,
doi:10.1126/scitranslmed.abf1906Ramos-Yataco, Meza, Cecilia Farfán-García, Ortega-Rojas, Salinas-Mamani et al., DKA in patients with pre-existing type 2 diabetes mellitus related to COVID-19: a case series, Endocrinol Diabetes Metab Case Rep,
doi:10.1530/EDM-20-0148Widera, Wilhelm, Hoehl, Pallas, Kohmer et al., Bamlanivimab does not neutralize two SARS-CoV-2 variants carrying E484K in vitro medRxiv preprint,
doi:10.1101/2021.02.24.21252372{ 'indexed': {'date-parts': [[2022, 4, 4]], 'date-time': '2022-04-04T04:15:37Z', 'timestamp': 1649045737861},
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'abstract': '<jats:p>Background and Objective
\n'
'The use of monoclonal antibodies to the SARS-Cov-2 spike protein for early treatment of '
'COVID-19 disease is being evaluated, with only phase 2 studies available, to date.
\n'
'Emergency authorization of bamlanivimab monotherapy was get in November 2020 by the FDA and '
'in March 2021 by italian agency AIFA. Its use was then revoked in April 2021 by both.
\n'
'This study reports the results of bamlanivimab utilization in monotherapy in Umbria (Italian '
'region), in order to verify whether, in a population with multiple risk factors, comparable '
'results to phase 2 BLAZE1 trial had been obtained.
\n'
'Methods
\n'
'Retrospective observational study, between March and April 2021, in patients treated with '
'bamlanivimab was performed. Demographic and clinical characteristics before and after '
'infusion were evaluated. \xa0Moreover, a telephone interview about 30 days after the infusion '
'was carried out to evaluate the overall course.
\n'
'Results
\n'
'All\xa0 patients had an early infection (mean 4±1.73 days), almost all by alpha variant '
'(97%).
\n'
'No adverse events to treatment were observed. Altogether within 30 days, the hospitalization '
'rate was 20%, 15% for\xa0 COVID-19 related pathologies , versus\xa0 4% at 11 days\xa0 in\xa0 '
'BLAZE1 phase 2 study. \xa0Worsening of some symptoms observed at baseline such as asthenia '
'(77 vs 51.3%), shortness of breath (38 vs 23%) was registered, as well as\xa0 the onset of '
'non-restorative sleep (41%).
\n'
'Conclusions
\n'
'The clinical outcome after bamlanivimab monotherapy was far below the expectation despite the '
'patients had been infected by a theoretically sensitive viral variant.</jats:p>',
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'POST-ACUTE SEQUELAE. A REAL EXPERIENCE IN UMBRIA, ITALY.',
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