Pandemic Phase-Adjusted Analysis of COVID-19 Outcomes Reveals Reduced Intrinsic Vulnerability and Substantial Vaccine Protection From Severe Acute Respiratory Syndrome Coronavirus 2 in Patients With Breast Cancer

PURPOSE: Although representing the majority of newly diagnosed cancers, patients with breast cancer appear less vulnerable to COVID-19 mortality compared with other malignancies. In the absence of patients on active cancer therapy included in vaccination trials, a contemporary real-world evaluation of outcomes during the various pandemic phases, as well as of the impact of vaccination, is needed to better inform clinical practice.

METHODS: We compared COVID-19 morbidity and mortality among patients with breast cancer across prevaccination (February 27, 2020-November 30, 2020), Alpha-Delta (December 1, 2020-December 14, 2021), and Omicron (December 15, 2021-January 31, 2022) phases using OnCovid registry participants (ClinicalTrials.gov identifier: NCT04393974). Twenty-eight-day case fatality rate (CFR28) and COVID-19 severity were compared in unvaccinated versus double-dosed/boosted patients (vaccinated) with inverse probability of treatment weighting models adjusted for country of origin, age, number of comorbidities, tumor stage, and receipt of systemic anticancer therapy within 1 month of COVID-19 diagnosis.

RESULTS: By the data lock of February 4, 2022, the registry counted 613 eligible patients with breast cancer: 60.1% (n = 312) hormone receptor-positive, 25.2% (n = 131) human epidermal growth factor receptor 2-positive, and 14.6% (n = 76) triple-negative. The majority (61%; n = 374) had localized/locally advanced disease. Median age was 62 years (interquartile range, 51-74 years). A total of 193 patients (31.5%) presented ≥ 2 comorbidities and 69% (n = 330) were never smokers. In total, 392 (63.9%), 164 (26.8%), and 57 (9.3%) were diagnosed during the prevaccination, Alpha-Delta, and Omicron phases, respectively. Analysis of CFR28 demonstrates comparable estimates of mortality across the three pandemic phases (13.9%, 12.2%, 5.3%, respectively; P = .182). Nevertheless, a significant improvement in outcome measures of COVID-19 severity across the three pandemic time periods was observed. Importantly, when reported separately, unvaccinated patients from the Alpha-Delta and Omicron phases achieved comparable outcomes to those from the prevaccination phase. Of 566 patients eligible for the vaccination analysis, 72 (12.7%) were fully vaccinated and 494 (87.3%) were unvaccinated. We confirmed with inverse probability of treatment weighting multivariable analysis and following a clustered robust correction for participating center that vaccinated patients achieved improved CFR28 (odds ratio [OR], 0.19; 95% CI, 0.09 to 0.40), hospitalization (OR, 0.28; 95% CI, 0.11 to 0.69), COVID-19 complications (OR, 0.16; 95% CI, 0.06 to 0.45), and reduced requirement of COVID-19-specific therapy (OR, 0.24; 95% CI, 0.09 to 0.63) and oxygen therapy (OR, 0.24; 95% CI, 0.09 to 0.67) compared with unvaccinated controls.

CONCLUSION: Our findings highlight a consistent reduction of COVID-19 severity in patients with breast cancer during the Omicron outbreak in Europe. We also demonstrate that even in this population, a complete severe acute respiratory syndrome coronavirus 2 vaccination course is a strong determinant of improved morbidity and mortality from COVID-19.

Medienart:

E-Artikel

Erscheinungsjahr:

2023

Erschienen:

2023

Enthalten in:

Zur Gesamtaufnahme - volume:41

Enthalten in:

Journal of clinical oncology : official journal of the American Society of Clinical Oncology - 41(2023), 15 vom: 20. Mai, Seite 2800-2814

Sprache:

Englisch

Beteiligte Personen:

Tagliamento, Marco [VerfasserIn]
Gennari, Alessandra [VerfasserIn]
Lambertini, Matteo [VerfasserIn]
Salazar, Ramon [VerfasserIn]
Harbeck, Nadia [VerfasserIn]
Del Mastro, Lucia [VerfasserIn]
Aguilar-Company, Juan [VerfasserIn]
Bower, Mark [VerfasserIn]
Sharkey, Rachel [VerfasserIn]
Dalla Pria, Alessia [VerfasserIn]
Plaja, Andrea [VerfasserIn]
Jackson, Amanda [VerfasserIn]
Handford, Jasmine [VerfasserIn]
Sita-Lumsden, Ailsa [VerfasserIn]
Martinez-Vila, Clara [VerfasserIn]
Matas, Marta [VerfasserIn]
Miguel Rodriguez, Ana [VerfasserIn]
Vincenzi, Bruno [VerfasserIn]
Tonini, Giuseppe [VerfasserIn]
Bertuzzi, Alexia [VerfasserIn]
Brunet, Joan [VerfasserIn]
Pedrazzoli, Paolo [VerfasserIn]
D'Avanzo, Francesca [VerfasserIn]
Biello, Federica [VerfasserIn]
Sinclair, Alasdair [VerfasserIn]
Lee, Alvin J X [VerfasserIn]
Rossi, Sabrina [VerfasserIn]
Rizzo, Gianpiero [VerfasserIn]
Mirallas, Oriol [VerfasserIn]
Pimentel, Isabel [VerfasserIn]
Iglesias, Maria [VerfasserIn]
Sanchez de Torre, Ana [VerfasserIn]
Guida, Annalisa [VerfasserIn]
Berardi, Rossana [VerfasserIn]
Zambelli, Alberto [VerfasserIn]
Tondini, Carlo [VerfasserIn]
Filetti, Marco [VerfasserIn]
Mazzoni, Francesca [VerfasserIn]
Mukherjee, Uma [VerfasserIn]
Diamantis, Nikolaos [VerfasserIn]
Parisi, Alessandro [VerfasserIn]
Aujayeb, Avinash [VerfasserIn]
Prat, Aleix [VerfasserIn]
Libertini, Michela [VerfasserIn]
Grisanti, Salvatore [VerfasserIn]
Rossi, Maura [VerfasserIn]
Zoratto, Federica [VerfasserIn]
Generali, Daniele [VerfasserIn]
Saura, Cristina [VerfasserIn]
Lyman, Gary H [VerfasserIn]
Kuderer, Nicole M [VerfasserIn]
Pinato, David J [VerfasserIn]
Cortellini, Alessio [VerfasserIn]

Links:

Volltext

Themen:

Journal Article
Research Support, Non-U.S. Gov't
Vaccines

Anmerkungen:

Date Completed 19.05.2023

Date Revised 10.02.2024

published: Print-Electronic

ClinicalTrials.gov: NCT04393974

Citation Status MEDLINE

doi:

10.1200/JCO.22.01667

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM352304553