Abstract
Thirty-two patients with common variable immunodeficiency (CVID) and two patients with IgA and IgG subclass deficiency received a total of 1,040 intravenous (i.v.) infusions during 60 patient years with 7,575 g of a new immunoglobulin (Ig) preparation. The content of prekallikrein activators and the anti-complementary activity in the tested Ig preparation was low and, in comparison to seven other commercial i.v. Igs, so was the proportion of IgG polymers and fragments. The IgA content was always less than or equal to 0.02 g/l, often less than 0.004 g/l, and it was possible to continuously give the Ig prophylactically to four patients with anti-IgA antibodies, i.e. three with CVID and one with combined IgA-IgG2 deficiency. Adverse reactions were only noted in 4.7% of the 1,040 infusions and in 12 out of the 34 patients. None of the reactions were of the anaphylactic type, but two patients had moderate reactions and one had anuria, probably not caused by the Ig. A simultaneous infection seemed to increase the risk of phlogistic reactions, as five out of six patients who reacted with temperature rise and chills had a simultaneous upper respiratory tract infection. A substudy of various dosage schedules was performed with 11 patients receiving 203 infusions over 10.8 patient years. On 25 mg/kg/week of Ig given i.v. every five weeks, a mean increase in the preinfusion serum IgG level of 0.3 g/l was observed, as compared to earlier i.m. prophylaxis with the same dose. Only 1/4 of the patients on 25 mg/kg/week every five or three weeks reached a preinfusion IgG level greater than or equal to 3 g/l.(ABSTRACT TRUNCATED AT 250 WORDS)
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.