Impact of androgen deprivation therapy on mortality of prostate cancer patients with COVID-19: a propensity score-based analysis

Antiandrogens as Therapies for COVID-19: A Systematic Review

BACKGROUND

In 2019, the breakthrough of the coronavirus 2 disease (COVID-19) pandemic, caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), represented one of the major issues of our recent history. Different drugs have been tested to rapidly find effective anti-viral treatments and, among these, antiandrogens have been suggested to play a role in mediating SARS-CoV-2 infection. Considering the high heterogeneity of studies on this topic, we decided to review the current literature.

METHODS

We performed a systematic review according to PRISMA guidelines. A search strategy was conducted on PUBMED and Medline. Only original articles published from March 2020 to 31 August 2023 investigating the possible protective role of antiandrogens were included. In vitro or preclinical studies and reports not in the English language were excluded. The main objective was to investigate how antiandrogens may interfere with COVID-19 outcomes.

RESULTS

Among 1755 records, we selected 31 studies, the majority of which consisted of retrospective clinical data collections and of randomized clinical trials during the first and second wave of the COVID-19 pandemic.

CONCLUSIONS

In conclusion, we can state that antiandrogens do not seem to protect individuals from SARS-CoV-2 infection and COVID-19 severity and, thus, their use should not be encouraged in this field.

Androgen deprivation therapy in men with prostate cancer is not associated with COVID-2019 infection

BACKGROUND

Androgens may play a role in severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) infection and host responses as the virus is dependent on the androgen-regulated protein transmembrane serine protease 2 for cell entry. Studies have indicated that prostate cancer patients receiving androgen deprivation therapy (ADT) are at reduced risk of SARS-CoV-2 infection and serious complications compared with patients without ADT, but data are inconsistent.

METHODS

A total of 655 prostate cancer patients who were under surveillance at two urology departments in Sweden on April 1, 2020 were included in the study as well as 240 patients with benign prostatic hyperplasia (BPH). At follow-up early in 2021, the participants completed a questionnaire containing information about symptoms compatible with coronavirus disease 2019 (COVID-19). Blood samples were also collected for the assessment of SARS-CoV-2 IgG antibodies (SARS-CoV-2 Total; Siemens). We used multivariable logistic regression models to calculate odds ratios (ORs) and 95% confidence intervals (CIs) for the association between ADT and the risk of SARS-CoV-2 infection.

RESULTS

The cumulative incidence of SARS-CoV-2 seropositivity was 13.4% among patients receiving ADT and 10.4% among patients without ADT. After adjusting for potential confounders, we observed no differences in symptoms or risk of SARS-CoV-2 infection between patients with and without ADT (OR: 0.98; 95% CI: 0.52-1.85). Higher body mass index, Type 1 diabetes, and prostate cancer severity, defined by high Gleason score (8-10; OR: 2.06; 95% CI: 1.04-4.09) or elevated levels of prostate-specific antigen (>20 µg/l; OR: 2.15; 95% CI: 1.13-4.07) were associated with increased risk of SARS-CoV-2 infection. Overall, the risk of SARS-CoV-2 infection was not higher among men with prostate cancer than among men with BPH.

CONCLUSIONS

Our results do not support the hypothesis that ADT use in prostate cancer patients reduces the risk or symptom severity of SARS-CoV-2 infection or that prostate cancer patients are at increased risk of COVID-19 compared with men without prostate cancer.

Sex hormones in SARS-CoV-2 susceptibility: key players or confounders?

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection has a clear sex disparity in clinical outcomes. Hence, the interaction between sex hormones, virus entry receptors and immune responses has attracted major interest as a target for the prevention and treatment of SARS-CoV-2 infections. This Review summarizes the current understanding of the roles of androgens, oestrogens and progesterone in the regulation of virus entry receptors and disease progression of coronavirus disease 2019 (COVID-19) as well as their therapeutic value. Although many experimental and clinical studies have analysed potential mechanisms by which female sex hormones might provide protection against SARS-CoV-2 infectivity, there is currently no clear evidence for a sex-specific expression of virus entry receptors. In addition, reports describing an influence of oestrogen, progesterone and androgens on the course of COVID-19 vary widely. Current data also do not support the administration of oestradiol in COVID-19. The conflicting evidence and lack of consensus results from a paucity of mechanistic studies and clinical trials reporting sex-disaggregated data. Further, the influence of variables beyond biological factors (sex), such as sociocultural factors (gender), on COVID-19 manifestations has not been investigated. Future research will have to fill this knowledge gap as the influence of sex and gender on COVID-19 will be essential to understanding and managing the long-term consequences of this pandemic.

Effect of Androgen-Androgen Receptor Directed Therapy on COVID-19 Outcome in Prostate Cancer Patients

TMPRSS2 is utilized by SARS-CoV-2 for cellular entry. Androgen-Androgen receptor directed therapy (A/ARDT) downregulates expression of TMPRSS2. We hypothesized A/ARDT might protect prostate cancer (PCa) patients from poor COVID-19 outcome. A retrospective analysis of PCa patients with COVID-19 infection was performed. 146 PCa cases were identified, 17% were on A/ARDT. Hospitalization rates were same 52% (OR = 0.99, 0.41-2.24). Mean hospitalization was 9.2 (Range: 1-25) and 14.9 (Range: 2-47) days in A/ARDT and non-A/ARDT groups, respectively. While definitive conclusions cannot be made regarding outcome differences between groups due to lack of statistical significance, these data generate hypothesis that A/ARDT might shorten hospitalization stay.

[Prostate cancer, androgen deprivation, and risk of COVID-19 infection : A systematic review and meta-analysis]

INTRODUCTION

Male gender has been shown to be a risk factor for COVID-19 infection, and men are more likely to develop severe disease. The aim of this study was to evaluate the effect of androgen deprivation therapy (ADT) on the incidence of infection and severity of SARS-CoV-2 in prostate cancer patients.

METHODS

A systematic review and meta-analysis were performed after searching PubMed, Scopus, and ClinicalTrial.org databases, between January 2020 and March 2022. Analyses were interpreted through forest plots for the following parameters: risk of infection, hospitalization, intensive care admission, and SARS-CoV-2-related death, with random or fixed-effects models.

RESULTS

Fifteen articles were included in the systematic review and ten in the meta-analysis. Seven studies evaluated risk of infection in patients on ADT: OR=1.11 (95 % IC : [0.48-2.58] ; P=0.81). Six studies evaluated the risk of hospitalization in patients on ADT: TDA : OR=1.58 (95 % IC : [0.94-2.64] ; P=0.08). Seven studies evaluated risk of ICU admission in patients on ADT: OR=0.90 (95 % IC : [0.71-1.13] ; P=0.37). Nine studies evaluated mortality risk in patients on ADT: OR=1.07 (95 % IC : [0.61-1.87] ; P=0.82).

CONCLUSION

ADT does not protect against SARS-CoV-2 in prostate cancer patients, nor does it protect against hospitalization, ICU admission, or mortality. These results remain questionable given the retrospective nature of the majority of studies included in our meta-analysis.

The immune response to COVID-19: Does sex matter?

The coronavirus disease 2019 (COVID‐19) pandemic has created unprecedented challenges worldwide. Severe acute respiratory syndrome coronavirus 2 (SARS‐CoV‐2) causes COVID‐19 and has a complex interaction with the immune system, including growing evidence of sex‐specific differences in the immune response. Sex‐disaggregated analyses of epidemiological data indicate that males experience more severe symptoms and suffer higher mortality from COVID‐19 than females. Many behavioural risk factors and biological factors may contribute to the different immune response. This review examines the immune response to SARS‐CoV‐2 infection in the context of sex, with emphasis on potential biological mechanisms explaining differences in clinical outcomes. Understanding sex differences in the pathophysiology of SARS‐CoV‐2 infection will help promote the development of specific strategies to manage the disease.

Impacts of androgen deprivation therapy on the risks and outcomes of SARS-CoV-2 infection in patients with prostate cancer

Studies have investigated the effects of androgen deprivation therapy (ADT) use on the incidence and clinical outcomes of coronavirus disease 2019 (COVID-19); however, the results have been inconsistent. We searched the PubMed, Medline, Cochrane, Scopus, and Web of Science databases from inception to March 2022; 13 studies covering 84 003 prostate cancer (PCa) patients with or without ADT met the eligibility criteria and were included in the meta-analysis. We calculated the pooled risk ratios (RRs) with 95% confidence intervals (CIs) to explore the association between ADT use and the infection risk of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and severity of COVID-19. After synthesizing the evidence, the pooled RR in the SARS-CoV-2 positive group was equal to 1.17, and the SARS-CoV-2 positive risk in PCa patients using ADT was not significantly different from that in those not using ADT (P = 0.544). Moreover, no significant results concerning the beneficial effect of ADT on the rate of intensive care unit admission (RR = 1.04, P = 0.872) or death risk (RR = 1.23, P = 0.53) were found. However, PCa patients with a history of ADT use had a markedly higher COVID-19 hospitalization rate (RR = 1.31, P = 0.015) than those with no history of ADT use. These findings indicate that ADT use by PCa patients is associated with a high risk of hospitalization during infection with SARS-CoV-2. A large number of high quality studies are needed to confirm these results.