Tripterygium wilfordii Hook F treatment for idiopathic refractory nephrotic syndrome in adults: a meta-analysis.

Tripterygium wilfordii Hook F (TwHF) is a Chinese herbal medicine with immunosuppressive effects and an established history of use in the treatment of inflammatory and autoimmune diseases. We have carried out a meta-analysis of randomized controlled trials (RCTs) and quasi-RCTs which assessed the effectiveness of TwHF in the treatment for idiopathic refractory nephrotic syndrome (IRNS). After reading the full text, only three RCTs or quasi-RCTs meeting our inclusion criteria were selected. Our meta-analysis indicated that TwHF has beneficial effects on the remission of IRNS. There was no significant publication bias in the meta-analysis studies. However, studies with a larger sample size and including patients with both a mild and severe histopathological change involvement separately are needed to assess the effects of TwHF in IRNS patients before exact conclusions can be drawn. Copyright (c) 2009 S. Karger AG, Basel.