 - Urine dipstick must be 0-1 within 2 weeks 14 days of randomization; if urine dipstick result is 1, a calculation of urine protein creatinine UPC ratio is required; patients must have a UPC ratio 1.0 to participate in the study; NOTE: UPC ratio of spot urine is an estimation of the 24 urine protein excretion - a UPC ratio of 1 is roughly equivalent to a 24-hour urine protein of 1 gm 