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Subcutaneous immunoglobulin (16 or 20%) therapy in obese patients with primary immunodeficiency: a retrospective analysis of administration by infusion pump or subcutaneous rapid push.

Abstract：

:A retrospective chart review was conducted at a single centre, capturing data on 173 primary immunodeficiency disease (PIDD) patients, including 40 obese patients, using subcutaneous administration of immunoglobulin (Ig) (SCIG) (16 or 20%) delivered by infusion pump or subcutaneous (s.c.) rapid push. Patients previously using Ig administered as intravenous (i.v.) infusions (IVIG) were converted to SCIG dosing on a 1:1 basis. In both obese and non-obese patients, mean serum Ig levels were higher during SCIG administration (steady state) compared with IVIG administration (trough values). Similar SCIG dose : serum IgG level relationships were observed between obese and non-obese patients, suggesting the consistent bioavailability of SCIG regardless of body mass index (BMI). The mean SCIG volume per dosing site and the mean number of dosing days per week were greater with s.c. rapid push compared with infusion pump in this cohort, but the mean number of sites per infusion session was lower with s.c. rapid push. Both methods were well tolerated. The use of 20 versus 16% SCIG in obese patients improved dosing efficiency, resulting in smaller weekly volumes (54·7 versus 74·5 ml/week) and dosing on fewer days per week (2·3 versus 3·4 days). These data do not suggest a need for SCIG dosing adjustments in obese individuals relative to non-obese patients. The administration of SCIG using either infusion pump or s.c. rapid push is a practical and well-tolerated alternative to IVIG in obese patients. Offering various administration techniques provides a greater opportunity for treatment satisfaction and patient empowerment, which may support high levels of patient compliance.

journal_name

Clin Exp Immunol

journal_title

Clinical and experimental immunology

authors

Shapiro R

doi

10.1111/cei.12099

subject

Has Abstract

pub_date

2013-08-01 00:00:00

pages

365-71

issue

eissn

0009-9104

issn

1365-2249

journal_volume

173

pub_type

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Subcutaneous immunoglobulin (16 or 20%) therapy in obese patients with primary immunodeficiency: a retrospective analysis of administration by infusion pump or subcutaneous rapid push.