Table 1. Summary of immunogenicity of COVID-19 vaccination between healthy people and patients with end-stage renal disease.
Variables | Healthy people, two doses of ChAdOx1 | ESRD patients, ChAdOx1-BNT162b2 | P valuea | ESRD patients, two doses of ChAdOx1 | P valueb | |
---|---|---|---|---|---|---|
SARS-CoV-2 binding antibody titer measured by Elecsys® Anti-SARS-CoV-2 S, AU/mL | ||||||
Day 0, from 1st dose | 0.4 ± 0.0 | 0.4 ± 0.0 | 1.000 | 0.4 ± 0.0 | 1.000 | |
Day 14, from 1st dose | 6.4 ± 13.2 | 0.8 ± 1.5 | < 0.001 | 0.5 ± 0.2 | 0.003 | |
Day 28, from 1st dose | 62.3 ± 60.3 | 15.0 ± 28.8 | < 0.001 | 23.3 ± 46.9 | 0.020 | |
Day 56, from 1st dose | 69.0 ± 53.3 | 27.1 ± 39.0 | < 0.001 | 39.7 ± 69.3 | 0.030 | |
Day 7, from 2nd dose | 1,192.0 ± 881.7 | 3,028.3 ± 2,687.2 | 0.004 | 523.9 ± 672.9 | 0.042 | |
Day 50, from 2nd dose | 1,149.9 ± 1,493.4 | 2,373.9 ± 1,075.9 | < 0.001 | 891.9 ± 1,256.8 | 0.229 | |
SARS-CoV-2 neutralizing antibody activity measured by cPass™ SARS-CoV-2 Neutralization Antibody Detection Kit, % inhibition | ||||||
Day 0, from 1st dose | 10.1 ± 10.4 | 4.5 ± 4.6 | 0.116 | 9.5 ± 5.1 | 0.697 | |
Day 14, from 1st dose | 24.7 ± 18.5 | 14.0 ± 9.1 | 0.016 | 6.5 ± 10.2 | 0.024 | |
Day 28, from 1st dose | 50.4 ± 21.2 | 20.4 ± 16.6 | < 0.001 | 20.7 ± 19.4 | 0.010 | |
Day 56, from 1st dose | 42.5 ± 18.5 | 17.7 ± 18.4 | < 0.001 | 27.7 ± 25.4 | 0.096 | |
Day 7, from 2nd dose | 74.8 ± 20.3 | 86.7 ± 18.2 | < 0.001 | 61.4 ± 29.4 | 0.291 | |
Day 50, from 2nd dose | 77.0 ± 17.6 | 91.7 ± 14.4 | < 0.001 | 74.8 ± 26.1 | 0.832 | |
SARS-CoV-2 neutralizing antibody activity measured by R-FIND SARS-CoV-2 Neutralizing Antibody ELISA, % inhibition | ||||||
Day 0, from 1st dose | 0.3 ± 6.4 | −7.2 ± 4.3 | < 0.001 | −6.2 ± 4.3 | 0.015 | |
Day 14, from 1st dose | 27.2 ± 20.8 | −3.9 ± 9.2 | < 0.001 | −5.6 ± 7.4 | 0.001 | |
Day 28, from 1st dose | 45.4 ± 25.7 | 14.2 ± 20.7 | < 0.001 | 23.7 ± 22.6 | 0.063 | |
Day 56, from 1st dose | 45.7 ± 22.0 | 14.4 ± 22.1 | < 0.001 | 26.5 ± 22.1 | 0.055 | |
Day 7, from 2nd dose | 86.3 ± 13.5 | 87.8 ± 18.2 | 0.210 | 64.5 ± 27.4 | 0.030 | |
Day 50, from 2nd dose | 84.6 ± 14.2 | 93.4 ± 5.5 | 0.002 | 76.1 ± 28.6 | 0.485 | |
Proportion of positive result of SARS-CoV-2 binding antibody measured by Elecsys® Anti-SARS-CoV-2 S | ||||||
Day 0, from 1st dose | 0 | 0 | 0 | |||
Day 14, from 1st dose | 38 (69) | 3 (12) | < 0.001 | 1 (17) | 0.020 | |
Day 28, from 1st dose | 54 (98) | 18 (72) | < 0.001 | 4 (67) | 0.024 | |
Day 56, from 1st dose | 55 (100) | 23 (92) | 0.106 | 6 (100) | ||
Day 7, from 2nd dose | 55 (100) | 25 (100) | 6 (100) | |||
Day 50, from 2nd dose | 55 (100) | 25 (100) | 6 (100) | |||
Proportion of positive result of SARS-CoV-2 neutralizing antibody activity measured by cPass™ SARS-CoV-2 Neutralization Antibody Detection Kit | ||||||
Day 0, from 1st dose | 1 (2) | 0 | 1.000 | 0 | 1.000 | |
Day 14, from 1st dose | 21 (38) | 1 (4) | < 0.001 | 0 | 0.085 | |
Day 28, from 1st dose | 44 (80) | 5 (20) | < 0.001 | 1 (17) | 0.004 | |
Day 56, from 1st dose | 41 (75) | 5 (20) | < 0.001 | 3 (50) | 0.335 | |
Day 7, from 2nd dose | 54 (98) | 25 (100) | 1.000 | 5 (83) | 0.189 | |
Day 50, from 2nd dose | 55 (100) | 24 (96) | 0.313 | 5 (83) | 0.098 | |
Proportion of positive result of SARS-CoV-2 neutralizing antibody activity measured by R-FIND SARS-CoV-2 Neutralizing Antibody ELISA | ||||||
Day 0, from 1st dose | 0 | 0 | 0 | |||
Day 14, from 1st dose | 26 (47) | 1 (4) | < 0.001 | 0 | 0.033 | |
Day 28, from 1st dose | 42 (76) | 5 (20) | < 0.001 | 3 (50) | 0.179 | |
Day 56, from 1st dose | 45 (82) | 5 (20) | < 0.001 | 2 (33) | 0.021 | |
Day 7, from 2nd dose | 55 (100) | 25 (100) | 5 (83) | 0.098 | ||
Day 50, from 2nd dose | 55 (100) | 25 (100) | 5 (83) | 0.098 |
Results are expressed as mean ± standard deviation or frequencies (and proportions).
COVID-19 = coronavirus disease 2019, ESRD = end-stage renal disease, SARS-CoV-2 = severe acute respiratory syndrome coronavirus 2, ELISA = enzyme-linked immunosorbent assay.
aComparison between Healthy people, two doses of ChAdOx1 and ESRD patients, ChAdOx1-BNT162b2.
bComparison between Healthy people, two doses of ChAdOx1and ESRD patients, two doses of ChAdOx1.