LBA79 Dutch oncology COVID-19 Consortium (DOCC): Outcome of COVID-19 in patients with cancer in a nationwide cohort study

Background: The coronavirus disease 2019 (COVID-19) pandemic is having significant impact on oncological care (Joode et al, Eur J Cancer 2020;136:132-139) and patients with cancer might have an increased risk for severe outcome of COVID-19 In order to identify risk factors associated with a worse outcome of COVID-19, a nationwide registry was developed for patients with cancer and COVID-19 Methods: This ongoing multicentre nationwide observational cohort study was designed as a quality of care registry and is executed by the Dutch Oncology COVID-19 Consortium (DOCC), a collaboration of oncology physicians in the Netherlands A questionnaire was developed to collect pseudonymised patient data on patients’ characteristics, cancer diagnosis, cancer treatment, and outcome of COVID-19 All patients with COVID-19 and a cancer diagnosis or cancer treatment in the past 5 years were eligible for inclusion Results: To date, > 600 cancer patients diagnosed with COVID-19 have been registered by 45 Dutch hospitals Data of 442 registered patients with at least 4 weeks follow-up were cleaned and 351 patients could be included for the first analyses The main cancer diagnoses were non-small cell lung cancer (13 4%), breast cancer (13 4%), and chronic lymphocytic leukaemia (8 8%) Overall, 114 (32 3%) out of 351 patients with cancer died from COVID-19 In multivariate analyses, age ≥ 65 years (p < 0 001), male gender (p = 0 035), prior or other malignancy (p = 0 045), and active diagnosis of haematological malignancy (p = 0 046) or lung cancer (p = 0 003) were independent risk factors for a fatal outcome of COVID-19 In a subgroup analysis of patients with active malignancy, the risk for a fatal outcome was mainly determined by tumour type (haematological malignancy or lung cancer) and age (≥ 65 years) Conclusions: The findings in this registry indicate that patients with a haematological malignancy or lung cancer have an increased risk of a worse outcome of COVID-19 During the ongoing COVID-19 pandemic, these vulnerable patients should avoid exposure to SARS-CoV-2, whereas treatment adjustments and prioritizing vaccination, when available, should also be considered Legal entity responsible for the study: Erasmus Medical Center Funding: Dutch Cancer Society Disclosure: D W Dumoulin: Honoraria (self), Speakers fee: MSD;Honoraria (self), Speakers fee : Roche;Honoraria (self), Speakers fee: Astazeneca;Honoraria (self), Speakers fee: BMS;Honoraria (self), Speakers fee: Novartis;Honoraria (self), Speakers fee: Pfizer H M Westgeest: Honoraria (self): Astellas;Honoraria (self): Roche;Travel/Accommodation/Expenses: Ipsen L E L Hendriks: Advisory/Consultancy, Mentorship program with key opinion leaders: funded by AstraZeneca: AstraZeneca;Honoraria (self), Educational webinars: Quadia;Research grant/Funding (institution): AstraZeneca;Advisory/Consultancy, Paid to institution: Eli Lilly;Advisory/Consultancy, Paid to institution: Roche Genentech;Advisory/Consultancy, Paid to institution: Pfizer;Advisory/Consultancy, Advisory board and speakers fee all paid to institution: MSD;Advisory/Consultancy, Paid to institution: Takeda;Leadership role, Local PI of pharma initiated research: AstraZeneca;Leadership role, Local PI of pharma initiated research: Novartis;Leadership role, Local PI of pharma initiated research: BMS;Leadership role, Local PI of pharma initiated research: MSD / Merck;Leadership role, Local PI of pharma initiated research: GSK;Leadership role, Local PI of pharma initiated research: Takeda;Leadership role, Local PI of pharma initiated research: Blueprint Medicines;Leadership role, Local PI of pharma initiated research: Roche Genentech;Advisory/Consultancy, Paid to institution: Amgen;Advisory/Consultancy, Paid to institution: Boehringer Ingelheim;Advisory/Consultancy, Paid to institution: BMS;Advisory/Consultancy, Travel/Accommodation/Expenses, Advisory board paid to institution: Roche Genentech;Travel/Accommodation/Expenses: BMS;Research grant/Funding (institution): Roche Genentech;R search grant/Funding (institution): Boehringer Ingelheim A-M C Dingemans: Honoraria (self): Roche;Honoraria (self): Eli Lilly;Honoraria (self): Boehringer Ingelheim;Honoraria (self): Pfizer;Honoraria (self): BMS;Honoraria (self): Novartis;Honoraria (self): Takeda;Honoraria (self): PharmaMar;Advisory/Consultancy, non financial support: AbbVie;Research grant/Funding (institution): BMS;Research grant/Funding (institution): Amgen A A M Van der Veldt: Honoraria (institution), Advisory/Consultancy: BMS;Honoraria (institution), Advisory/Consultancy: MSD;Honoraria (institution), Advisory/Consultancy: Pfizer;Honoraria (institution), Advisory/Consultancy: Sanofi;Honoraria (institution), Advisory/Consultancy: Eisai;Honoraria (institution), Advisory/Consultancy: Ipsen;Honoraria (institution), Advisory/Consultancy: Roche;Honoraria (institution), Advisory/Consultancy: Novartis;Honoraria (institution), Advisory/Consultancy: Merck;Honoraria (institution), Advisory/Consultancy: Pierre Fabre All other authors have declared no conflicts of interest