Rapid subcutaneous IgG replacement therapy is effective and safe in children and adults with primary immunodeficiencies - A prospective, multi-national study

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Data
2006-03-01
Autores
Gardulf, A.
Nicolay, U.
Asensio, O.
Bernatowska, E.
Bock, A.
Costa-Carvalho, Beatriz Tavares [UNIFESP]
Granert, C.
Haag, S.
Hernandez, D.
Kiessling, P.
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Sixty patients (16 children, 44 adults) participated in the study aiming at evaluating: (i) IgG levels when switching patients from intravenous IgG (IVIG) infusions in hospital to subcutaneous (SCIG) self-infusions at home using the same cumulative monthly dose, (ii) protections against infections, and (iii) safety of a new, ready-to-use 16% IgG preparation. All children and 33 adults had received IVIG therapy for > 6 months at enrolment. Ten adults who had been on SCIG therapy for many years served as controls. Mean serum IgG trough levels increased in the pre-IVIG children from 7.8 to 9.2 g/L (non-inferiority: p < 0.001) and in the adults from 8.6 to 8.9 g/L (non-inferiority: p < 0.001). Totally 114 respiratory tract infections occurred, 90% of them mild. One serious bacterial infection (pneumonia) was reported for one adult. the annualized rate of serious infections was 0.04 episodes/patient. in total 2297 infusions were given and 28 (1%) systemic adverse reactions occurred, none of them severe. Local tissue reactions declined over time, this being particularly distinct after 8 to 10 weeks. in conclusion, the SCIG administration route was safe. High IgG levels were easily maintained resulting in a very good protection against infections.
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Journal of Clinical Immunology. New York: Springer/plenum Publishers, v. 26, n. 2, p. 177-185, 2006.