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. 2011 Sep 19;27(5):1942–1949. doi: 10.1093/ndt/gfr531

Table 1.

Screening/washout failures

Screen failures, n (%)
 Washout failures, n (%)
Total entering screening 746 (100) Total entering washout 578 (77)
Excluded after screening 168 (23) Excluded after washout 306 (53)
Reason for failure Reason for failure
    iPTH > 700 pg/mL 48 (29) iPTH > 800 pg/mL 65 (21)
    iPTH < 130 pg/mL 39 (23) iPTH < 300 pg/mL 124 (41)
    Calcium > 10.0 mg/dL 46 (27) Calcium > 10 mg/dL 22 (7)
    Ca × P > 75 mg2/dL2 (US) or > 70 mg2/dL2 (non-US) 19 (11) Calcium < 8.4 mg/dL 61 (20)
    Serum alkaline phosphatase < 40 U/L 21 (13) Phosphorus > 6.5 mg/dL 61 (20)

Ca × P, calcium–phosphorus product.