Table 3.
Efficacy endpoints
Primary efficacy endpoint | The slope of eGFR, assessed from week 6 to week 108 at the final analysis |
Surrogate efficacy endpoint | The proportion of patients achieving a UP/C ≤1.5 g/g and a >40% reduction from baseline in UP/C (i.e., FPRE) at week 36 (interim analysis) |
Secondary efficacy endpoints | The percent change in eGFR from week 6 to week 108 |
The percent change in eGFR from baseline to 4 wk postcessation of randomized treatment at week 112 | |
Exploratory endpoints | Slope of eGFR assessed from week 6 to week 60 |
Absolute and percent change in eGFR from baseline at each visit | |
Percent change in eGFR from week 6 at each visit | |
Proportion of patients achieving FPRE at each visit | |
Percent change in UP/C from baseline at each visit | |
Time to achieve FPRE | |
Proportion of patients reaching a confirmed 40% reduction in eGFR, ESKD (defined as initiation of renal replacement therapy, kidney transplantation, or sustained eGFR <15 ml/min per 1.73 m2), or death | |
Change from baseline in blood pressure at each visit | |
Proportion of patients requiring initiation of or intensification in immunosuppressive medication | |
Proportion of patients undergoing reduction in immunosuppressive medication | |
Change from baseline in quality of life, assessed using patient-reported outcome measures at each visit beginning at week 12 | |
Frequency and duration of hospitalizations (for any reason and for reasons related to the kidney) | |
Trough plasma pharacokinetic concentrations |
eGFR, estimated glomerular filtration rate; ESKD, end-stage kidney disease; FPRE, FSGS partial remission endpoint; UP/C, urinary protein-to-creatinine ratio.