Tocilizumab as treatment for COVID-19: A systematic review and meta-analysis.

BACKGROUND: The majority of patients with coronavirus disease 2019 (COVID-19) have good prognoses, but some develop a critical illness that can lead to death. Evidence shows severe acute respiratory syndrome is closely related to the induced cytokine storm. Interleukin-6 is a key player; its role in systemic inflammation is well known. AIM: To evaluate the effect of tocilizumab (TCZ), an interleukin-6 receptor antagonist, on the outcomes for patients with COVID-19 pneumonia. METHODS: PubMed, EMBASE, SCOPUS, Web of Science, MedRxiv, Science Direct, and the Cochrane Library were searched from inception to 9th June 2020 for observational or prospective studies reporting results of hospitalized adult patients with COVID-19 infection treated with TCZ. Effect sizes were reported as odds ratios (ORs) with 95% confidence intervals (CIs), and an OR less than 1 was associated with a better outcome in those treated with TCZ. RESULTS: Overall 13476 patients (33 studies; n = 3264 received TCZ) with COVID-19 pneumonia and various degree of severity were included. Outcome was improved with TCZ. In the primary analysis (n = 19 studies reporting data), mortality was reduced in patients treated with TCZ (OR = 0.64, 95%CI: 0.47-0.87; P < 0.01). In 9 studies where risk of death with TCZ use was controlled for other variables mortality was reduced by 57% (OR = 0.43, 95%CI: 0.27-0.7; P < 0.01). Intensive care need (mechanical ventilation) was also reduced (OR = 0.36, 95%CI: 0.14-0.89; P = 0.02). CONCLUSION: In COVID-19-infected patients treated with TCZ, outcome may be improved compared to those not treated with TCZ.

Drug-Related Pneumonitis in Cancer Treatment during the COVID-19 Era.

Interstitial lung disease is recognized as a group of diseases with a different etiopathogenesis characterized by chronic lung inflammation with the accumulation of inflammatory cells, lymphocytes and macrophages, and the consequent release of proinflammatory cytokines. Various degrees of pulmonary fibrosis can be associated with this inflammatory condition. Interstitial lung disease related to oncological drugs is a relevant problem in clinical practice. The etiopathogenetic mechanisms underlying this adverse event are not completely known but can be partly explained by the mechanism of action of the drug involved. Therefore, knowledge of the relevance of this potentially fatal adverse event supported by the reported safety data of pivotal studies becomes fundamental in the management of patients. The prompt diagnosis of drug-related pneumonia and the consequent differential diagnosis with other forms of pneumonia allow a rapid suspension of treatment and the establishment of an immunosuppressive treatment if necessary. In the context of the health emergency related to SARS CoV2 infection and COVID-19-related interstitial lung disease, such knowledge holds decisive relevance in the conscious choice of cancer treatments. Our intent was to describe the oncological drugs most correlated with this adverse event by reporting, where possible, the percentages of insurgency in pivotal studies to provide an overview and therefore promote greater awareness of this important toxicity related to oncological treatment.

Outcome of oncological patients admitted with COVID-19: experience of a hospital center in northern Italy.

BACKGROUND: Recent literature regarding the outcome of cancer patients infected with COVID-19 are not encouraging. Nevertheless, current evidence on the risk and benefits of continuing oncological treatment of cancer patients during the pandemic remains insufficient. We provide our experience in a center with high access for patients with COVID-19-associated pneumonia in Lombardy, Italy. We conducted a retrospective study using a prospectively maintained database of patients admitted to our hospital between 25 February 2020 and 9 April 2020 with a confirmed diagnosis of COVID-19 pneumonia. RESULTS: A total of 53 patients with a history or current oncological disease were included in this study. Sixteen oncological patients (30.2%) died during hospitalization. Multivariable logistic regression analysis found that age (Odds ratio [OR]: 1.17, p = 0.009), diabetes (OR: 15.05, p = 0.028) and active oncological disease (OR 13.60, p = 0.015) were independently associated with in-hospital mortality. The mortality rate of the total number of cancer patients is about twice as high as that of non-oncological patients admitted to our hospital with a diagnosis of COVID-19. CONCLUSION: The presence of active oncological disease is independently related to mortality as well as age and diabetes. The majority of patients who died were frail. Careful evaluation of the risks and benefits of treatment in frail patients is needed, considering that difficult access to intensive care may have affected the mortality rate.