Back

Antibody decay, T cell immunity and breakthrough infections following two SARS-CoV-2 vaccine doses in infliximab- and vedolizumab-treated patients

Lin, S.; Kennedy, N. A.; Saifuddin, A.; Munoz Sandoval, D.; Reynolds, C. J.; Seoane, R. C.; Kottoor, S. H.; Pieper, F. P.; Lin, K.-M.; Butler, D. K.; Chanchlani, N.; Nice, R.; Chee, D.; Bewshea, C.; Janjua, M.; McDonald, T. J.; Sebastian, S.; Alexander, J. L.; Constable, L.; Lee, J. C.; Murray, C. D.; Hart, A. L.; Irving, P. M.; Jones, G.-R.; Kok, K. B.; Lamb, C. A.; Lees, C. W.; Altmann, D. M.; Boyton, R. J.; Goodhand, J. R.; Powell, N.; Ahmad, T.; Contributors to the CLARITY IBD study,

2021-11-11 gastroenterology
10.1101/2021.11.10.21266168 medRxiv
Show abstract

We report SARS-CoV-2 vaccine-induced immunity and risk of breakthrough infections in patients with inflammatory bowel disease treated with infliximab, a commonly used anti-TNF drug and those treated with vedolizumab, a gut-specific antibody targeting integrin a4b7 that does not impact systemic immunity. In infliximab-treated patients, the magnitude of anti-SARS-CoV2 antibodies was reduced 4-6-fold. One fifth of both infliximab- and vedolizumab-treated patients did not mount a T cell response. Antibody half-life was shorter in infliximab-treated patients. Breakthrough SARS-CoV-2 infections occurred more frequently in infliximab-treated patients and the risk was predicted by the level of antibody response after second vaccine dose. Overall, recipients of two doses of the BNT162b2 vaccine had higher anti-SARS-CoV-2 antibody concentrations, higher seroconversion rates, shorter antibody half-life and less breakthrough infections compared to ChAdOx1 nCoV-19 vaccine recipients. Irrespective of biologic treatment, higher, more sustained antibody levels were observed in patients with a history of SARS-CoV-2 infection prior to vaccination. Patients treated with anti-TNF therapy should be offered third vaccine doses.

Matching journals

The top 8 journals account for 50% of the predicted probability mass.

50% of probability mass above

"Similar papers" are the closest papers from that journal in the model's embedding space. They show what the match is built on, but the ranking comes mostly from a classifier over the whole training set, not from these examples alone.