ABSTRACT
Introduction: Cancer patients have been considered a high-risk population in the COVID-19 pandemic. We previously investigated risk of COVID-19 death in COVID-19 positive cancer patients during a median follow-up of 134 days, and identified the following risk factors: male sex, age >60 years, Asian ethnicity, hematological cancer type, cancer diagnosis for >2.5 years, patients presenting with fever or dyspnea, and high levels of ferritin and C-reactive protein (CRP). Here, we further investigate which factors are associated with a COVID-19 related death within 7 days of diagnosis. Methods: Using data from Guy's Cancer Centre and one of its partner trusts (King's College Hospital), we included 306 cancer patients with a confirmed COVID-19 diagnosis (February 29th-July 31st 2020). 72 patients had a COVID-19 related death (24%) of whom 35 died within 7 days (50%). Cox proportional hazards regression was used to identify which factors were associated with a COVID-19 related death <7 days of diagnosis. Results: Of the 72 cancer patients who had a COVID-19 related death, the mean age was 72 years (Standard Deviation (SD) 14). A total of 53 (74%) patients were men. 37 (52%) had a hematological cancer type, 47 (65%) had stage IV cancer, and 42 (58%) had been diagnosed with cancer more than 24 months before COVID-19 related death. In the group of patients who died within 7 days of diagnosis (n= 35), mean age was 73 years (SD 13.96), 24 (68%) were men, 20 (57%) had a hematological cancer type, 26 (74%) had stage IV cancer, and 24 (68%) had been diagnosed with cancer >24 months before COVID-19 diagnosis. Factors associated with COVID-19 related death <7 days of diagnosis were: hematological cancer (Hazard Ratio (HR): 2.74 (95% Confidence Interval (CI): 1.21-6.22)), 2-5 yrs since cancer diagnosis (HR: 4.81 (95%CI: 1.47-15.69)), and >5 yrs since cancer diagnosis (HR: 4.41 (95%CI: 1.38-14.06)). Additionally, patients who presented with dyspnea had increased risk of COVID-19 related death <7 days compared to asymptomatic patients (HR: 5.25 (95%CI 2.14-12.89)). CRP levels in the third tercile (146-528 mg/L) as compared to the first were also associated with increased risk of an early death due to COVID-19. Conclusion: From all the factors identified in our previous COVID-19 related death analysis, only hematological cancer type, a longer-established cancer diagnosis (2-5 years and more than 5 years), dyspnea at time of diagnosis and high levels of CRP were indicative of an early COVID-19 related death (within 7 days of diagnosis) in cancer patients.
ABSTRACT
Background: The Coronavirus disease 2019 (COVID-19) pandemic continues to have a significant impact on the treatment of cancer patients. Understanding the clinical course, potential risk factors for severe infection and excess mortality, is essential to improve patient outcomes. We previously presented preliminary results from 156 SARS-CoV-2 positive cancer patients from Guy's Cancer Center, which suggested that increased COVID-19 mortality was associated with a diagnosis of cancer for over 2 years, Asian ethnicity and being on palliative treatment. Herein, we present an updated analysis using data from Guy's Cancer Centre and a partner Hospital Trust (King's College Hospital), with an increased number of patients and an extended follow up. Methods: We performed an analysis of all cancer patients who had a positive RT-PCR nasal/throat swab for SARS-CoV-2 infection at our Centers between 29th February and 31st July 2020. Associations between patients' demographics, clinical characteristics, and laboratory investigations with COVID-19 severity and mortality, were assessed using Logistic regression and Cox proportional hazards models. Results: 306 SARS-CoV-2 positive cancer patients were included in the analysis with a median follow up of 134 days (IQR 32-156). 184 (60%) were male and 217 (71%) were aged over 60 (mean age: 66). The most common malignancies were haematological (38%) and urological-gynaecological (20%). 218 (71%) had mild/moderate COVID-19 and 88 (29%) had severe disease. The overall COVID-related mortality rate was 24%;19% in solid and 32% in haematological cancers. Male sex [OR: 1.84 (95%CI:1.08-3.13)], Asian ethnicity [3.86 (1.20-12.36)], haematological cancer type [2.16 (1.18-3.95)], being diagnosed with cancer for 2-5 years [3.74 (1.80-7.78)] or ≥5 years [3.06 (1.50-6.26)] and a ferritin > 1964 mcg/l [54.92 (5.90-511.33)] were all associated with a risk of developing severe COVID-19 disease. Similarly, male sex [HR:1.97 (95%CI:1.15-3.38)], Asian ethnicity [3.42 (1. 59-7.35)], haematological cancer type [2.03 (1.16-3.56)] as well as a cancer diagnosis for >2-5 years [2.81 (1.41-5.59)] or ≥5 years [2.13 (1.06-4.27)] and a ferritin > 1964 mcg/l [16.11 (3.81-68.17)] were associated with an increased risk of death from COVID-19. Age >60 [2.14 (1.15-3.98)] and a raised CRP [4.10 (1.66-10.10)] were also associated with COVID-19 death. An inverse relationship was observed between a raised albumin and COVID-19 related death [0.12 (0.03- 0.51)]. Performance status and treatment paradigm were not associated with COVID-19 severity or mortality. Conclusions: This study further substantiates the evidence for an increased risk of severe COVID-19 infection and mortality for male and Asian patients with cancer, and those with haematological malignancies or with a diagnosis of cancer for over 2 years. These risk factors should be taken into account when making clinical decisions for cancer patients during the pandemic.
ABSTRACT
Background: The provision of cancer services has been strongly impacted by the outbreak of SARS-CoV-2. Our Cancer Centre in South-East London treats about 8,800 patients annually (incl. 4,500 new diagnoses) and is one of the largest Comprehensive Cancer Centres in the UK. The first COVID-19 positive cancer patient was reported on 29 Feb 2020. Whilst we are dealing with the second wave of COVID-19, it is important to further evaluate safety of cancer treatments whilst balancing risks of COVID-19 infection and complications. Methods: Using descriptive statistics, we report on the patient/tumour characteristics as well as short-term clinical outcomes of those patients undergoing radical treatment (i.e. systemic anticancer treatment (SACT), surgery, or radiotherapy (RT)) for their cancer during the first wave as to help establish the clinical guidelines for the management of cancer patients in a SARS-CoV-2 epidemic. Results: Between March-July 2020, 1,553 patients underwent surgery, 1,125 received SACT, and 814 had RT. Compared to the same period in 2019, there was a decrease of 28% for surgery, 15% for SACT, and 10% for radiotherapy. Whilst surgery was performed on more male patients (58%), more women received SACT (75%) and RT (58%). The age distribution was similar between treatment arms, with the majority of patients aged 50 to 80 years. The most common tumour types were breast (21%), thoracic (20%), and urological (29%) for surgical treatment;breast (49%), gastrointestinal (18%), and gynaecological (10%) for SACT;and breast (40%), urology (25%), and head & neck (11%) for RT. Within SACT, 36% received combination therapy, 35% received systemic chemotherapy, 23% targeted therapy, 5% immunotherapy, and 2% biological therapy. In terms of oncological outcomes, outcomes were similar to pre-COVID-19 times;with 6 deaths at 30 days (<1%) for surgical patients and 36 readmissions (2%), 10 deaths (<1%) for SACT patients, and 52% of RT delivered with radical intent (which was the same in 2019). The COVID-19 infection rates for our patients were very low: 12 patients were positive pre-surgery (1%), 7 post-surgery (<1%), 17 SACT patients (2%) and 3 RT patients (<1%). No COVID-19 related deaths were registered for the surgical, SACT and RT patients. Conclusion: Whilst there was a decline in overall radical treatment, likely due to a delay in cancer diagnoses, those who did undergo their treatment were treated in a safe COVID-19 managed environment. Our findings highlight that cancer patients should have the confidence to attend hospitals and be reassured of the safety measurements taken.
ABSTRACT
Background: Current precautionary management decisions being made for cancer patients are based onassumptions supported by limited evidence, based on small case series from China and Italy and larger series fromNew York and a recent consortium of 900 patients from over 85 hospitals in the USA, Canada, and Spain. Hence, there is insufficient evidence to support clinical decision-making for cancer patients diagnosed with COVID-19 dueto the lack of large studies. Methods: We used data from a single large UK Cancer Centre to assess demographic/clinical characteristics of 156cancer patients with a confirmed COVID-19 diagnosis between 29 February-12 May 2020. Logistic/Cox proportionalhazards models were used to identify which demographic and/or clinical characteristics were associated withCOVID-19 severity/death. Results: 128 (82%) presented with mild/moderate COVID-19 and 28 (18%) with severe disease. Initial diagnosis ofcancer >24m before COVID-19 (OR:1.74 (95%CI: 0.71-4.26)), presenting with fever (6.21 (1.76-21.99)), dyspnea(2.60 (1.00-6.76)), gastrointestinal symptoms (7.38 (2.71-20.16)), or higher levels of CRP (9.43 (0.73-121.12)) werelinked with greater COVID-19 severity. During median follow-up of 47d, 34 patients had died of COVID-19 (22%).Asian ethnicity (3.73 (1.28-10.91), palliative treatment (5.74 (1.15-28.79), initial diagnosis of cancer >24m before(2.14 (1.04-4.44), dyspnea (4.94 (1.99-12.25), and increased CRP levels (10.35 (1.05-52.21)) were positivelyassociated with COVID-19 death. An inverse association was observed with increased levels of albumin (0.04 (0.01-0.04). Conclusions: Our analysis of one of the largest single-center series of COVID-19-positive cancer patients to dateconfirms a similar distribution of age, sex, and comorbidities as reported for other populations. With respect tocancer-specific observations, patients who have lived longer with their cancer were found to be more susceptible toa greater infection severity, possibly reflecting the effect of more advanced malignant disease, as almost half of thesevere cohort were on third-line metastatic treatment, or the impact of this infection. The latter was also found to beassociated with COVID-19 death in cancer patients, as were Asian ethnicity and palliative treatment. Furthervalidation will be provided from other large case series, as well as from those including longer follow-up, to providemore definite guidance for oncologic care.