Background This study was designed to investigate the impact of anti-tumor approaches (including chemotherapy, targeted therapy, endocrine therapy, immunotherapy, surgery and radiotherapy) on the outcomes of cancer patients with COVID-19. Methods Electronic databases were searched to identify relevant trials. The primary endpoints were severe disease and death of cancer patients treated with anti-tumor therapy before COVID-19 diagnosis. In addition, stratified analyses were implemented towards various types of anti-tumor therapy and other prognostic factors. Furthermore, odds ratios (ORs) were hereby adopted to measure the outcomes with the corresponding 95% confidence intervals (CIs). Results As indicated in the study consisting of 9231 individuals from 52 cohorts in total, anti-tumor therapy before COVID-19 diagnosis could elevate the risk of death in cancer patients (OR: 1.21, 95%CI: 1.07–1.36, P = 0.0026) and the incidence of severe COVID-19 (OR: 1.19, 95%CI: 1.01–1.40, P = 0.0412). Among various anti-tumor approaches, chemotherapy distinguished to increase the incidence of death (OR = 1.22, 95%CI: 1.08–1.38, P = 0.0013) and severe COVID-19 (OR = 1.10, 95%CI: 1.02–1.18, P = 0.0165) as to cancer patients with COVID-19. Moreover, for cancer patients with COVID-19, surgery and targeted therapy could add to the risk of death (OR = 1.27, 95%CI: 1.00–1.61, P = 0.0472), and the incidence of severe COVID-19 (OR = 1.14, 95%CI: 1.01–1.30, P = 0.0357) respectively. In the subgroup analysis, the incidence of death (OR = 1.17, 95%CI: 1.03–1.34, P = 0.0158) raised in case of chemotherapy adopted for solid tumor with COVID-19. Besides, age, gender, hypertension, COPD, smoking and lung cancer all served as potential prognostic factors for both death and severe disease of cancer patients with COVID-19. Conclusions Anti-tumor therapy, especially chemotherapy, augmented the risk of severe disease and death for cancer patients with COVID-19, so did surgery for the risk of death and targeted therapy for the incidence of severe COVID-19. Supplementary Information The online version contains supplementary material available at 10.1186/s12885-022-09320-x.
【저자키워드】 COVID-19, Cancer, Chemotherapy, solid tumor, Anti-tumor therapy, 【초록키워드】 therapy, severe COVID-19, Immunotherapy, Gender, risk, outcome, smoking, lung cancer, hypertension, database, COPD, Cohort, Radiotherapy, COVID-19 diagnosis, death, Prognostic factors, age, incidence, targeted therapy, trials, primary endpoint, Analysis, Endocrine, Odds ratio, severe disease, Prognostic factor, cancer patient, risk of death, supplementary material, 95% confidence interval, approaches, individual, subgroup analysis, approach, Result, identify, indicated, addition, raised, treated, searched, adopted, stratified, CIs, with COVID-19, 【제목키워드】 Meta-analysis, outcome, Cohort, cancer patient, participant, approach,