ArticleESMO open2021
Serologic response to COVID-19 infection and/or vaccine in cancer patients on active treatment.
Article in ESMO open, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers, 7 of them syntheses that pooled it.
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The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
37 citing papers in PubMed, 7 syntheses or guidelines pooled it, 49 citations in OpenAlex.
- Immune response of COVID-19 vaccines in solid cancer patients: A meta-analysis.Human vaccines & immunotherapeutics · 2024Pooled it
- Pooled it
- Seroconversion rate after COVID-19 vaccination in patients with solid cancer: A systematic review and meta-analysis.Human vaccines & immunotherapeutics · 2022Pooled it
- Impaired serological response to COVID-19 vaccination following anticancer therapy: A systematic review and meta-analysis.Journal of medical virology · 2022Pooled it
- Predictors of poor serologic response to COVID-19 vaccine in patients with cancer: a systematic review and meta-analysis.European journal of cancer (Oxford, England : 1990) · 2022Pooled it
- Efficacy of covid-19 vaccines in immunocompromised patients: systematic review and meta-analysis.BMJ (Clinical research ed.) · 2022Pooled it
- COVID-19 Vaccination in Patients With Malignancy; A Systematic Review and Meta-Analysis of the Efficacy and Safety.Frontiers in endocrinology · 2022Pooled it
- Learning from an Emerging Infection: How the COVID-19 Pandemic Reshaped Gastric Cancer Care.Life (Basel, Switzerland) · 2026Review
- Neutralizing antibody responses to the primary series of a COVID-19 mRNA vaccine in the cancer cohort under active treatment.Human vaccines & immunotherapeutics · 2025Article
- Immunogenicity of SARS-CoV-2 mRNA Vaccine in Breast Cancer Patients Undergoing Active Treatment: A Prospective Observational Study.Pathogens (Basel, Switzerland) · 2025Observational
- Article
- Neutralizing antibodies and safety of a COVID-19 vaccine against SARS-CoV-2 wild-type and Omicron variants in solid cancer patients.PloS one · 2024Article
- COVID-19 in cancer patients: The impact of vaccination on outcomes early in the pandemic.Cancer medicine · 2023Article
- Article
- Serological Response to SARS-CoV-2 after COVID-19 Vaccination in Lung Cancer Patients: Short Review.Vaccines · 2023Review
- Article
- Impact of chemotherapy and/or immunotherapy on neutralizing antibody response to SARS-CoV-2 mRNA-1237 vaccine in patients with solid tumors.Molecular oncology · 2023Article
- Selective suppression of de novo SARS-CoV-2 vaccine antibody responses in patients with cancer on B cell-targeted therapy.JCI insight · 2023Article
- Humoral response and safety of the BNT162b2 and mRNA-1273 COVID-19 vaccines in allogeneic hematopoietic stem cell transplant recipients: An observational study.Journal of infection and chemotherapy : official journal of the Japan Society of Chemotherapy · 2023Observational
- Repeated SARS-CoV-2 vaccination in cancer patients treated with immune checkpoint inhibitors: induction of high-avidity anti-RBD neutralizing antibodies.International journal of clinical oncology · 2023Article
Corrections and comments
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Authors and funding
6 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundIt was shown that immunocompromised patients have significantly reduced immunologic responses to COVID-19 vaccines. The immunogenicity of COVID-19 vaccine/infection in patients with solid tumors is reduced. We evaluated the immunologic response to COVID-19 and/or the BNT162b2 mRNA COVID-19 vaccine among cancer patients on active treatments and reviewed previous literature to identify subgroups that may require third vaccination. PATIENTS AND
methodsAnti-SARS-CoV-2 S1/S2 antibodies were measured in a cohort of 202 cancer patients on active treatment with chemotherapy (96), immunologic (52), biologic (46), and hormonal (12) treatments for early (n = 66, 32.7%) or metastatic disease (n = 136, 67.3%). Of those, 172 had received two vaccine doses, and 30 had COVID-19 infection (20/30 also received one dose of vaccine). Specific anti-S receptor-binding domain antibodies were further measured in patients with equivocal anti-S1/S2 results.
resultsAmong cancer patients, the SARS-CoV-2 antibody response rate was 89.1% (180/202) after COVID-19 vaccination or infection and 87.2% (150/172) in patients after vaccination without a history of COVID-19, compared with 100% positive serologic tests in a control group of 30 health care workers (P < 0.001). Chemotherapy treatment was independently associated with significantly reduced humoral response to infection or vaccination, with an 81.3% response rate, compared with 96.2% in patients on other treatments (P = 0.001). In vaccinated patients on chemotherapy, the positive response rate was 77.5%. In a multiple regression model, a neutralizing antibody titer (>60 AU/ml) was more likely with immunotherapy (odds ratio 2.44) and less likely with chemotherapy (odds ratio 0.39).
conclusionsOverall, both COVID-19 vaccine and natural infection are highly immunogenic among cancer patients. Our study, however, identifies those under chemotherapy as significantly less responsive, and with lower antibody levels. These findings justify close virological and serological surveillance along with consideration of these patients for booster (third dose) vaccine prioritization, as new highly spreading SARS-CoV-2 variants emerge.
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