this is what we are looking for:
"Change in kidney function in population [ Time Frame: 120 weeks ]
baseline estimated glomerular filtration rate (eGFR) <60 mL/min/1.7m2"
In addition, Dr. KKZ had a poster from 2018. In it he listed taking the measurements at approx 4 or 5 time periods - I can't recall...but I did see that poster from the site, you have to go back to posters from previous years.