About this trial
The purpose of this study is to evaluate the efficacy and safety of Avacopan together with low-dose glucocorticoid in the treatment of patients with crescentic Imunoglobulin A Nephropathy (IgAN) and high risk of progression.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Age > 18 years
Kidney biopsy showing crescentic IgA nephropathy within 6 months of enrolment (MEST-C-score =C1/C2).
Quantified creatinine clearance >20 ml/min/1.73m2
Quantified Proteinuria > 750 mg/24h based on a 24h urine collection while on maximum tolerated dose of RAS blockade
Disqualifiers
Creatinine clearance <20 ml/min/1.73 m2
Liver function tests > 2x upper limit of normal. (Serious cases of hepatotoxicity have been reported in patients with avacopan during first approval and ADVOCATE study (29) (30)
Severe interstitial fibrosis and tubular atrophy (IFTA > 70% on renal biopsy)
Active cancer or acute non-controlled infection (including HIV, HBV, HCV)
Trial design
Parallel
Treatments tested in this trial
Avacopan
DrugAvacopan is a complement 5a receptor (C5aR) antagonist, orally active.
Prednisone
Drug0.4 mg/kg per day (maximum, 32 mg/day) for 2 months followed by dose tapering by 4 mg per day each month (total duration 6-9 months
Methylprednisolone (drug)
DrugMethylprednisolone 1g intravenous on day +1
Prednisolone
DrugPrednisone 0.2 mg/kg per day (maximum, 16 mg/day) for 2 months followed by dose tapering by 2 mg per day each month (total duration 6-9 months)
Treatment groups
Trial outcomes
Primary outcomes
Change in proteinuria measured by results of protein total, 24-hour urine collection at baseline compared to collection at 12 months.
A response is based on the average of proteinuria quantified twice over a 2-weeks period at 12 months.
Secondary outcomes
Change in proteinuria >50%
This is based on the average of proteinuria quantified twice over a 2-weeks period at 12 months.
Change in eGFR (using 2021 CKD-EPI Formula)
• Change in eGFR (using 2021 CKD-EPI Formula) at 6 and 12 months compared to baseline
Change in hematuria from Baseline to 12 month visit.
Hematuria is measured in the urinalysis done at baseline and 12-month visit.
Sponsors and contacts
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