- Proteinuria at screening as demonstrated by either urine protein: creatinine (UPC) ratio greater than or equal to 1.0 at screening OR urine dipstick for proteinuria greater than or equal to 2 or more (patients discovered to have greater than or equal to 2 or greater proteinuria on dipstick urinalysis at baseline should undergo a 24-hour urine collection and must demonstrate less than or equal to 1g of protein in 24 hours to be eligible).