Creatinine, weakness, weight loss.

He is diabetic for 20 years , Bp for 2 years ,  he is on insulin for 2 years. In 2 years with insulin and other medication of BP , cholestrol, multivitamin , still his condition is worsening. His sugar level is controlled fasting 100 and post meal  150 around with insulin 6 units. See Attached reports of kft & HbA1c -5.2,  Vit D -7 His weight has been reducing for years from 100kg to 70kg Though there is no fluid retention, his urine output is good . Only edema in lower leg (in foot only ) So dr. Said  if urine is fine then No Need of Dialysis but may happen in future. He is not eating protein still creatinine is increasing. 3 months back in ultrasound, it was grade 2 renal parachymal disease and now its gfr 13 ml With low protein restricted diet as per dr. said , his kidney condition neither improved nor paused . In addition his muscle and bones are getting weakening  , can't walk long way or get up easily. Now what should be done to improve his health ?