1611P Health-related quality of life, vaccine uptake and immune response among cancer patients undergoing treatment during the COVID-19 pandemic

Figueiredo, J. C.; Merin, N.; Ihenacho, U.; Hamid, O.; Hendifar, A. E.; Vescio, R.; Paquette, R.; Natale, R. B.; Darrah, J.; Basho, R.; McArthur, H.; Nguyen, N.; Punwani, N.; Herrera, E.; Cheng, S.; Salvy, S-J.; Datta, G.; Figlin, R.; Merchant, A.; Reckamp, K. L.

Background: Cancer patients are at increased risk of severe COVID-19 illness because of their systemic immunosuppressive state. The potential effects of cancer and/or anticancer treatments on COVID-19 vaccine response, adverse events and progression are unknown. Moreover, the impacts of financial, familial and societal stressors during the pandemic on health-related quality of life are unclear. To address these concerns, we report data from the ongoing U.S. NCI-funded SeroNet COVID-19 Risk Associations and Longitudinal Evaluation Study (CORALE) at a large health care system in Los Angeles. Methods: Cancer patients are invited to complete questionnaires, donate blood specimens and engage in long-term follow-up with repeat questionnaires and biosampling. Patient-reported outcomes are assessed at baseline, post-vaccination, 6, 12 and 24 months. Clinical information on cancer type, stage, treatment, dates, medications and outcomes (adverse events, SARS-CoV-2 infection, COVID-19 vaccination and cancer-related outcomes) are extracted from electronic medical records. Results: From December 2019-May 2020, we enrolled 317 patients with malignancies or hematologic disorders (70.0% response rate). The median age was 63 (interquartile range (IQR)=54-73) years, 47% were women, 30% self-identified as non-White minorities and 18% were unable to work due to health status. 3% were known to been infected with SARS-CoV-2. An overall COVID-19 vaccine acceptance rate of 80% was reported. Among unvaccinated patients, women expressed more hesitancy than men (p=0.045). Concerns about adverse events (56%), rushed vaccine development (44%), and insufficient knowledge (44%) were reported. Self-reported symptoms after the first dose included injection site pain (21%) and fatigue (11%). We observed low levels of depression and high emotional support. Enrollment is ongoing. Conclusions: Individuals with cancer are a complex and extremely diverse population with a multitude of considerations for both immediate clinical care and long-term survivorship. Updated results including findings on antibody response to vaccination across cancer types/treatment protocols will be presented. Legal entity responsible for the study: Cedars-Sinai Medical Center. Funding: U.S. National Cancer Institute. Disclosure: All authors have declared no conflicts of interest.