Research Project

Project Title:

Treatment of IGA nEphropathy according to Renal lesions (TIGER)

Project Type:

Clinical Trial, Enrolment ongoing

Disease group(s):

Hereditary glomerulopathies

Project Summary:

Currently, IgAN treatment recommendations are only based on clinico-biological parameters. Steroids therapy appears to have a major role in IgAN treatment, but previous studies evaluating steroids lacked of optimal control group and reproducible evaluation criteria. No prospective study (including ongoing studies) with optimal RAS blockade had included renal pathology in patients selection criteria, although histological evaluation improves patients prognosis prediction. Until now, the lack of a reliable histological classification has precluded the use of histological lesions to evaluate IgAN prognosis and treatment. Given the recently identified major prognostic role of histological lesions in IgAN, we propose to introduce renal pathology to guide the treatment of IgAN in a multicenter study, using currently validated evaluation criteria of chronic kidney disease progression. Primary objective To evaluate the efficacy of early corticotherapy + RAS blockade (versus RAS blockade alone) after 2 years of evolution in IgAN patients with severe histological lesions

Lead principal investigator(s):

Myriam Dao, Paris


Bertrand Knebelmann, Paris

Project Period:

02/2020   -   02/2026

EudraCT Nr.:


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