TY - JOUR
T1 - Characteristics associated with serological COVID-19 vaccine response and durability in an older population with significant comorbidity
T2 - the Danish Nationwide ENFORCE Study
AU - Søgaard, Ole Schmeltz
AU - Reekie, Joanne
AU - Johansen, Isik Somuncu
AU - Nielsen, Henrik
AU - Benfield, Thomas
AU - Wiese, Lothar
AU - Stærke, Nina Breinholt
AU - Iversen, Kasper
AU - Fogh, Kamille
AU - Bodilsen, Jacob
AU - Iversen, Mette
AU - Knudsen, Lene Surland
AU - Klastrup, Vibeke
AU - Larsen, Fredrikke Dam
AU - Andersen, Sidsel Dahl
AU - Hvidt, Astrid Korning
AU - Andreasen, Signe Rode
AU - Madsen, Lone Wulff
AU - Lindvig, Susan Olaf
AU - Øvrehus, Anne
AU - Ostrowski, Sisse Rye
AU - Abildgaard, Christiane
AU - Matthews, Charlotte
AU - Jensen, Tomas O.
AU - Raben, Dorthe
AU - Erikstrup, Christian
AU - Fischer, Thea K.
AU - Tolstrup, Martin
AU - Østergaard, Lars
AU - Lundgren, Jens
AU - ENFORCE Writing Group
N1 - Publisher Copyright:
© 2022 The Author(s)
PY - 2022
Y1 - 2022
N2 - Objectives: To identify individual characteristics associated with serological COVID-19 vaccine responsiveness and the durability of vaccine-induced antibodies. Methods: Adults without history of SARS-CoV-2 infection from the Danish population scheduled for SARS-CoV-2 vaccination were enrolled in this parallel group, phase 4 study. SARS-CoV-2 Spike IgG and Spike-ACE2-receptor-blocking antibodies were measured at days 0, 21, 90, and 180. Vaccine responsiveness was categorized according to Spike IgG and Spike-ACE2-receptor-blocking levels at day 90 after first vaccination. Nondurable vaccine response was defined as day-90 responders who no longer had significant responses by day 180. Results: Of 6544 participants completing two vaccine doses (median age 64 years; interquartile range: 54–75), 3654 (55.8%) received BTN162b2, 2472 (37.8%) mRNA-1273, and 418 (6.4%) ChAdOx1 followed by an mRNA vaccine. Levels of both types of antibodies increased from baseline to day 90 and then decreased to day 180. The decrease was more pronounced for levels of Spike-ACE2-receptor-blocking antibodies than for Spike IgG. Proportions with vaccine hyporesponsiveness and lack of durable response were 5.0% and 12.1% for Spike IgG and 12.7% and 39.6% for Spike-ACE2-receptor-blocking antibody levels, respectively. Male sex, vaccine type, and number of comorbidities were associated with all four outcomes. Additionally, age ≥75 years was associated with hyporesponsiveness for Spike-ACE2-receptor-blocking antibodies (adjusted odds ratio: 1.59; 95% confidence interval: 1.25–2.01) but not for Spike IgG. Discussion: Comorbidity, male sex, and vaccine type were risk factors for hyporesponsiveness and nondurable response to COVID-19 vaccination. The functional activity of vaccine-induced antibodies declined with increasing age and had waned to pre-second-vaccination levels for most individuals after 6 months.
AB - Objectives: To identify individual characteristics associated with serological COVID-19 vaccine responsiveness and the durability of vaccine-induced antibodies. Methods: Adults without history of SARS-CoV-2 infection from the Danish population scheduled for SARS-CoV-2 vaccination were enrolled in this parallel group, phase 4 study. SARS-CoV-2 Spike IgG and Spike-ACE2-receptor-blocking antibodies were measured at days 0, 21, 90, and 180. Vaccine responsiveness was categorized according to Spike IgG and Spike-ACE2-receptor-blocking levels at day 90 after first vaccination. Nondurable vaccine response was defined as day-90 responders who no longer had significant responses by day 180. Results: Of 6544 participants completing two vaccine doses (median age 64 years; interquartile range: 54–75), 3654 (55.8%) received BTN162b2, 2472 (37.8%) mRNA-1273, and 418 (6.4%) ChAdOx1 followed by an mRNA vaccine. Levels of both types of antibodies increased from baseline to day 90 and then decreased to day 180. The decrease was more pronounced for levels of Spike-ACE2-receptor-blocking antibodies than for Spike IgG. Proportions with vaccine hyporesponsiveness and lack of durable response were 5.0% and 12.1% for Spike IgG and 12.7% and 39.6% for Spike-ACE2-receptor-blocking antibody levels, respectively. Male sex, vaccine type, and number of comorbidities were associated with all four outcomes. Additionally, age ≥75 years was associated with hyporesponsiveness for Spike-ACE2-receptor-blocking antibodies (adjusted odds ratio: 1.59; 95% confidence interval: 1.25–2.01) but not for Spike IgG. Discussion: Comorbidity, male sex, and vaccine type were risk factors for hyporesponsiveness and nondurable response to COVID-19 vaccination. The functional activity of vaccine-induced antibodies declined with increasing age and had waned to pre-second-vaccination levels for most individuals after 6 months.
KW - Antibody
KW - COVID-19
KW - Immunity
KW - SARS-CoV-2
KW - Vaccination
U2 - 10.1016/j.cmi.2022.03.003
DO - 10.1016/j.cmi.2022.03.003
M3 - Journal article
C2 - 35283313
AN - SCOPUS:85127561603
VL - 28
SP - 1126
EP - 1133
JO - Clinical Microbiology and Infection
JF - Clinical Microbiology and Infection
SN - 1198-743X
IS - 4
ER -