ABSTRACT
Background: With the approval of the vaccines against SARS-CoV-2, oncologic scientific societies have recommended cancer p to be prioritized for vaccination. Since cancer p have not participated in vaccine development studies, these recommendations arise some questions regarding their efficacy, safety and impact on survival. The aim of this prospective study is to evaluate the immune response to the SARS-CoV-2 vaccine in LC p. Secondary objectives include vaccine-related adverse events (AE), cancer treatment AE after vaccination, impact of the vaccine on survival, immune response, toxicity and survival outcomes in p>75 y, (re)infection after vaccination, complications and mortality. Methods: LCp who receive the vaccine against SARS-COV-2 are candidates to participate in this study. A pre-vaccination IgG determination will be performed to identify p with previous infection, but asymptomatic course. After vaccination, IgG will be repeated at 3, 6 and 12 months. Information on short and long term vaccine-related AEs will be collected, as well as, serological results, tumor and treatment-related data, and survival. Results: From March, 31 to April 15, 2021,106p have participated in the study. 58.5% were male, median age was 66 y (46- 83), 90.6% were Non-Small Cell LC, 83% has stage IV at diagnosis, Systemic therapy included EGFR/ALK/ROS1/RET/MET TKI (22.6%), immunotherapy (IT) (39.6%), chemotherapy (CT) (19.4%) and CTIT (14.1%). 4p were not receiving active therapy. 94.3% received Moderna® vaccine on behalf of the Hospital Vaccination Program. AES to 1st dose (1D) included local pain (16%), swelling (0.9%), fever (2.8%) and myalgia (0.9%). 5p had prior known COVID infection. No vaccine-related AE were reported in this group. 6p were admitted after vaccination due to cancer-related symptoms. No deaths were reported. Definitive data on baseline and 3-m serological data, as well as complete 1D and 2D related-AE and potential interactions with cancer therapy will be presented later. Conclusions: 1D of SARS-COV-2 vaccine appears to be safe irrespective of systemic therapy in our cohort of LCp. Legal entity responsible for the study: The authors. Funding: Has not received any funding. Disclosure: M. Saigí: Financial Interests, Institutional, Funding: Merck;Financial Interests, Personal, Other: BMS;Financial Interests, Personal, Other: Pfizer. E. Carcereny Costa: Financial Interests, Personal, Advisory Board: AstraZeneca, Boehringer Ingelheim, Bristol-Myers Squibb, MSD, Novartis, Roche, Takeda;Financial Interests, Personal, Invited Speaker: AstraZeneca, Boehringer Ingelheim, Bristol-Myers Squibb, MSD, Novartis, Pfizer, Roche, Takeda, Amgen;Financial Interests, Personal, Other: Bristol-Myers Squibb, Pfizer, Roche, Takeda. M. Domenech: Financial Interests, Personal, Invited Speaker: AstraZeneca, BMS. A. Estival: Financial Interests, Personal, Other: Lilly, Pharmamar, Bayer, MSD, BMS, Roche. Honoraria: Roche, MSD, AstraZeneca, Pharmamar. M. Romeo Marín: Non-Financial Interests, Personal, Advisory Board: MSD, GSK;Non-Financial Interests, Personal, Other: AZ. M.T. Moran Bueno: Financial Interests, Personal, Advisory Board: AstraZeneca Boehringer Ingelheim Roche BMS. All other authors have declared no conflicts of interest.