Actually, eGFR is "higher the better, so reverse relationship:

 eGFR rates for the entire placebo group went up down (got worse) and entire treated group eGFR went down up. (this is good)

Yet we are hoping the treated CKD group with <60 eGFR will have gone up (yes! likely statistially more than the overall group) and the placebo >60  <60 (same  group) will have not gone up,... to show APABETALONE increase eGFR in sick patients.

I'm not Bear, but hope this helps ;)