It is likely that the higher antibody titers along with natural immunity may confer strong protection in these patients. in multivariate logistic regression analysis (Odds Ratio 2.35, 95% confidence interval 1.2C4.6, test was used when appropriate. Univariate and multivariate analyses were tested using logistic SSR128129E regression models. Variables with a value??0.1 in the univariate model were included in the multivariate analysis. A value?0.05 was considered statistically significant. All values are two-sided. A median test sub-analysis to check the protective effect of the amount of SCoV2-R-A was carried out in patients with available quantitative SCoV2-R-A titers normalized to BAU/mL. All analyses were performed using the statistical software SPSS v. 25(IBM SPSS Statistics, Armonk, New York, USA). Results Patient characteristics Patient characteristics are summarized in Table ?Table1.1. Most patients ((%)109 (7.9)?Diagnosed by PCR95 (7)??Positive serostatus prior to vaccination37 (2.6)??Negative serostatus prior to vaccination13 (1)?Detected by pre-vaccine serological test14 (1.5)?Median time from COVID-19 to vaccination, days (range)185 (33C460)Serological status prior to vaccination, SSR128129E (%)?Positive50 (4)?Negative422 (30)?Not tested922 (66)Median time from serology to vaccination, days (range)0 (0C386)Type of vaccine, (%)?Moderna mRNA-1273983 (70.5)?Pfizer-BioNTech BNT162b2362 (26)?Adenoviral vector-based49 (3.5)Age (years), median (range)63 (18C97)?18C40?years, (%)143 (10)?41C60?years, (%)496 (35.5)?61C70?years, (%)373 (26.8)?>?71?years, (%)382 (27.4)Male, (%)784 (56.3)ECOG 0C1 at vaccination1351 (97)Baseline disease, (%)?AML179 (12.8)?ALL46 (3.3)?MDS158 (11.3)?B-cell NHL302 (21.6)?T cell NHL38 (2.7)?Plasma cell disorders236 (16.9)?CLL158 (11.3)?HD103 (7.4)?cMPN139 (10)?Aplastic anemia16 (1)?Non-malignant disorders18 (1.3)Type of cell therapy?Allo-HSCT369 Rabbit Polyclonal to PPP1R2 (26.5)?ASCT110 (8)?CAR-T21 (1.5)Status disease at vaccination, (%)?Complete remission824 (59.2)?Partial remission162 (11.6)?Active disease408 (29.2)Time last treatment to COVID-19 vaccine, months (range)?Untreated172 (12.3)?Active treatment509 (36.5)??6?month to 1 1?year92 (6.6)??1?year621 (44.5)Immunosuppressant drugs at vaccination, (%)300 (21.5)Corticosteroids at vaccination, (%)255 (18.6)Daratumumab, (%)46 (3.3)Venetoclax, (%)14 (1)Anti-CD-20 moAb, (%)241 (17.3)?6?months before 1st vaccine dose87 (6.2)?6 to 1 1?year before 1st vaccine dose25 (1.8)?>?1?year before 1st vaccine dose129 (9.3)BTK inhibitor therapy, (%)63 (4.5)TKI therapy, (%)40 (2.9)Lenalidomide maintenance, (%)120 (8.6)Ruxolitinib therapy, (%)14 (1)Blood count before vaccination (?109/mL)?Absolute neutrophile counts, median (range)3.1 (0C46.7)?Absolute lymphocyte counts, median (range)1.73 (0.14C262.1)?Absolute lymphocyte counts?1??109/L265 (18.6)Time from 2nd dose to first serologies, median days (range)21 (12C62)Median time between vaccine doses, median days (range)28 (17C115)SCoV2-R-A detection at 3C6?weeks after full vaccination, (%)1090 (78.2)Patient with SCoV2-R-A titers at 3C6?weeks in BAU/mL, (%)1244 (89%)Median SCoV2-R-A titers at 3C6?weeks in BAU/mL, (range)715 (0C56,800)Third vaccine dose given, (%)550 (39.5)Time from 2nd dose to 3rd dose, days (range)153 (39C269)Median follow-up after full vaccination, days (range)165 (12C269)COVID-19 after vaccination, (%)37 (2.7)Median time from vaccination to SARS-CoV-2 infection, days (range)77 (7C195) Open in a separate window PCR, Polymerase chain reaction AML, acute myeloid leukemia; ALL, acute lymphoblastic leukemia; MDS, myelodysplastic syndrome; B-cell NHL, B-cell non-Hodgkin lymphoma; T cell NHL, T cell non-Hodgkin lymphoma; CLL, chronic lymphocytic leukemia; HD, Hodgkin disease; MPN, chronic myeloproliferative neoplasm; Allo-HSCT, allogeneic stem cell transplantation; ASCT, autologous stem cell transplantation; CAR-T, T cell chimeric antigen receptor; moAb, monoclonal antibody; BTK inhibitor, Brutons tyrosine SSR128129E kinase inhibitor; SSR128129E TKIs, tyrosine kinase inhibitors; and SCoV2-R-A, SARS-CoV-2-reactive IgG antibodies Overall, the SCoV2-R-A detection rate at 3C6?weeks after the complete vaccination was 78.2%. Among those with quantitative antibody testing, the median SCoV2-R-A titer was 720.26 BAU/mL (range 0C58,600). We compared SCoV2-R-A titers at 3C6?weeks after full vaccination in patients with and without SARS-CoV-2 infection prior to vaccination (excluding 7 patients with breakthrough SARS-CoV-2 infection after SSR128129E the second vaccine dose and before the first serological testing) and found higher titers in those with (median 2550 BAU/mL, range 0C10,400) vs those without (median 493.6 BAU/mL, range 0C6338.6) (valuevaluevalue
SARS-CoV-2 infection17 (3.4%)10 (1.8%)00.018Symptomatic SARS-CoV-210 (2%)3 (0.5%)00.035Pneumonia4 (0.7%)000.05Hospital admission8 (1.5%)000.012Oxygen requirement7 (1.3%)000.006ICU admission2 (0.35%)000.2Death2 (0.35%)000.2 Open in.