To see all protocols that comply with the WHO Essential Medicine List 

Grade 1: 1+ proteinuria; urinary protein ≥ULN - <1.0 g/24 hrs

Grade 2: 2+ and 3+ proteinuria; urinary protein 1.0 - <3.5 g/24 hrs

Grade 3: urinary protein >=3.5 g/24 hrs; 4+ proteinuria;

Reference: Common Terminology Criteria for Adverse Events (CTCAE) Version 5.0 Published: November 27, 2017