i took low dose subQ immunoglobulin for several months. i did not notice any improvements that i could attribute specifically due to that, but my doc says it works slowly in the body. i know of someone who has been in remission for 30 yrs while taking IVIG 25 mg a month. her insurance pays for this.
In other autoimmune diseases such as CIDP or MMN, patients usually get prescribed a loading dose then a lower maintenance dose. Both are based on weight (kg).
Some proposed mechanism of action:
"Other B-cell mediated effects of IVIg include inhibition of antibody production [
33], inhibition of B-cell differentiation [
60], inhibition of production of interleukin-6 and tumour necrosis factor-α [
63], induction of B-cell apoptosis [
64], down-regulation of specific auto-reactive B-cells [
70] and regulation of B-cell subsets expressing CD5 [
69], thereby suppressing the auto-antibody producing CD20+ B1 cells."
"In animal models of experimental autoimmune encephalomyelitis and autoimmune uveitis, IVIg is thought to reduce the production of interleukin-2 and interferon-γ by T-cells [
47,
55], preventing the development of disease. This is also thought to be one of the major effector mechanisms in the treatment of GBS and CIDP."
These anecdotal reports of improvement/remission are interesting. Again, I wish there was a well designed trial for SCIG in ME/CFS patients. We could possibly use cytokine profiles to generate two subsets and differentiate whether patients with "short term" disease respond better or worse with SCIG.