tetano
Editor, Senior Moderator
J Gastroenterol. 2015 Feb 12. [Epub ahead of print]
[h=1]Booster influenza vaccination does not improve immune response in adult inflammatory bowel disease patients treated with immunosuppressives: a randomized controlled trial.[/h] Matsumoto H[SUP]1[/SUP], Ohfuji S, Watanabe K, Yamagami H, Fukushima W, Maeda K, Kamata N, Sogawa M, Shiba M, Tanigawa T, Tominaga K, Watanabe T, Fujiwara Y, Hirota Y, Arakawa T.
[h=3]Author information[/h]
[h=3]Abstract[/h] [h=4]BACKGROUND:[/h] This research was conducted is to assess the effect of booster doses of the trivalent influenza vaccine in adult inflammatory bowel disease (IBD) patients treated with anti-tumor necrosis factor (TNF)-α agents and/or immunomodulators.
[h=4]METHODS:[/h] Adult IBD patients and healthy individuals were subcutaneously administered the trivalent influenza vaccine. They were randomized into two groups: the single vaccination group and the two vaccination booster group. Blood samples were collected, and the antibody titers against each influenza strain were determined by hemagglutination inhibition at 3 different time points (pre-vaccination, 3 weeks post-vaccination, and after the flu season) in the single vaccination group and at 4 time points (pre-vaccination, 3 weeks post-first vaccination, 3 weeks post-second vaccination, and after the flu season) in the booster vaccination group.
[h=4]RESULTS:[/h] Seventy-eight IBD patients and 11 healthy controls were randomized into the single vaccination group and the booster vaccination group. Twenty-nine patients received immunomodulators; 21 received anti-TNF-α agents; and 28 received a combination of both. No significant differences were observed in the evaluated immune response parameters between 3 weeks post-vaccination in the single vaccination group and 3 weeks post-second vaccination in the booster vaccination group (geometric mean titers: H1N1, p = 0.09; H3N2: p = 0.99; B: p = 0.94). A higher pre-vaccination titer was significantly associated with sufficient seroprotection rate after vaccination for the H1N1 strain (odds ratio 11.93, p = 0.03).
[h=4]CONCLUSIONS:[/h] The second booster of trivalent influenza vaccination did not improve the immune response in adult IBD patients who were treated with immunomodulators and/or anti-TNF-α agents.
PMID: 25672513 [PubMed - as supplied by publisher]
[h=1]Booster influenza vaccination does not improve immune response in adult inflammatory bowel disease patients treated with immunosuppressives: a randomized controlled trial.[/h] Matsumoto H[SUP]1[/SUP], Ohfuji S, Watanabe K, Yamagami H, Fukushima W, Maeda K, Kamata N, Sogawa M, Shiba M, Tanigawa T, Tominaga K, Watanabe T, Fujiwara Y, Hirota Y, Arakawa T.
[h=3]Author information[/h]
[h=3]Abstract[/h] [h=4]BACKGROUND:[/h] This research was conducted is to assess the effect of booster doses of the trivalent influenza vaccine in adult inflammatory bowel disease (IBD) patients treated with anti-tumor necrosis factor (TNF)-α agents and/or immunomodulators.
[h=4]METHODS:[/h] Adult IBD patients and healthy individuals were subcutaneously administered the trivalent influenza vaccine. They were randomized into two groups: the single vaccination group and the two vaccination booster group. Blood samples were collected, and the antibody titers against each influenza strain were determined by hemagglutination inhibition at 3 different time points (pre-vaccination, 3 weeks post-vaccination, and after the flu season) in the single vaccination group and at 4 time points (pre-vaccination, 3 weeks post-first vaccination, 3 weeks post-second vaccination, and after the flu season) in the booster vaccination group.
[h=4]RESULTS:[/h] Seventy-eight IBD patients and 11 healthy controls were randomized into the single vaccination group and the booster vaccination group. Twenty-nine patients received immunomodulators; 21 received anti-TNF-α agents; and 28 received a combination of both. No significant differences were observed in the evaluated immune response parameters between 3 weeks post-vaccination in the single vaccination group and 3 weeks post-second vaccination in the booster vaccination group (geometric mean titers: H1N1, p = 0.09; H3N2: p = 0.99; B: p = 0.94). A higher pre-vaccination titer was significantly associated with sufficient seroprotection rate after vaccination for the H1N1 strain (odds ratio 11.93, p = 0.03).
[h=4]CONCLUSIONS:[/h] The second booster of trivalent influenza vaccination did not improve the immune response in adult IBD patients who were treated with immunomodulators and/or anti-TNF-α agents.
PMID: 25672513 [PubMed - as supplied by publisher]