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  • Title: Immune response to an adjuvanted influenza A H1N1 vaccine (Pandemrix(®)) in renal transplant recipients.
    Author: Brakemeier S, Schweiger B, Lachmann N, Glander P, Schönemann C, Diekmann F, Neumayer HH, Budde K.
    Journal: Nephrol Dial Transplant; 2012 Jan; 27(1):423-8. PubMed ID: 21613386.
    Abstract:
    BACKGROUND: In the course of the influenza A H1N1 pandemic, transplanted patients were recommended to receive vaccination. In the present study, we evaluated the immune response to an adjuvanted influenza A H1N1 vaccine (Pandemrix®) in renal allograft recipients. METHODS: Sixty patients and 22 healthy controls participated in a prospective observational study and received a single dose of Pandemrix®. H1N1 antibody titres as well as anti-HLA antibodies were determined before and after vaccination. In 19 patients, a booster vaccination was performed and the outcome of all vaccinated renal allograft recipients (n = 107) in our clinic was reviewed. RESULTS: Two out of sixty patients had an elevated influenza A H1N1 titre before vaccination. Of the remaining 58 patients, only 20/58 (34.5%) developed a protective immune response in contrast to 20/22 (91%) of the control group. After booster vaccination, a protective titre was present in 8/19 (42%) of patients. Of the 107 patients, 6 (5.6%) developed new donor-specific HLA antibodies after vaccination. CONCLUSIONS: These data suggest that Pandemrix® does not provide a protective immune response in the majority of kidney transplant recipients. Therefore, for new vaccines, efficacy as well as safety profiles should be evaluated in this subgroup of patients.
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