A Study of Subcutaneous Mircera for the Treatment of Anemia in Dialysis Patients.

A time adjusted mean change in hemoglobin (Hb) concentration was calculated using an area under the curve (AUC) approach, for both periods separately. Change in Hb concentration between the baseline and evaluation periods was calculated by subtracting the calculated average baseline Hb value from the average evaluation period Hb value. All blood samples for Hb measurements were taken prior to study drug administration. Analysis used last observation carried forward (LOCF) for missing Hb values to correct for the impact of early dropouts. The baseline period is defined as Week -4 to Week -1. The evaluation period is defined as Week 29 to Week 36.

All mean Hb values recorded during the evaluation period were calculated and subtracted from the mean baseline Hb value for each participant. The number of participants maintaining their average Hb within +/- 1 g/dL of their average baseline hemoglobin concentration is given. The evaluation period is defined as Week 29 to Week 36.

The number of participants who received RBC transfusions were reported.

An adverse event (AE) is any untoward medical occurrence in a participant who received study drug without regard to possibility of causal relationship. A serious adverse event (SAE) is an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly.

A marked abnormality range was defined as above and/or below a value which was considered to be potentially clinically relevant. Marked laboratory abnormalities were analyzed according to the Roche specified limits for the reference range of the following laboratory parameters: White blood cells (WBC) (3.0- 18.0 10^9/L), platelets (100 - 550 10^9/L), alanine aminotransferase (ALAT) (0 - 110 units per liter [U/L]), alkaline phosphatase (ALP [0 - 220 U/L]), aspartate aminotransferase (ASAT) (0 - 80 U/L), albumin >= 30 g/L, phosphate (0.75 - 1.60 millimoles per liter [mmol/L]), potassium (2.9 - 5.8 mmol/L), glucose (2.80 - 11.10 mmol/L).

Systolic blood pressure (SBP) and diastolic blood pressure (DBP) was measured in sitting position before and after dialysis session in haemodialysis participants.

Pulse rate in beats per minute (BpM) was measured at each study visit, i.e., once a week during the dose titration and evaluation periods, once every two weeks during the long-term safety observation period and at the final visit. It was measured before blood sampling and RO0503821/epoetin administration and before the dialysis session in haemodialysis participants.

Systolic blood pressure (SBP) and diastolic blood pressure (DBP) was measured in sitting position before and after dialysis session in peritoneal dialysis participants.

Pulse rate in BpM was measured at each study visit, i.e., once a week during the dose titration and evaluation periods, once every two weeks during the long-term safety observation period and at the final visit. It was measured before blood sampling and RO0503821/epoetin administration and before the dialysis session in peritoneal dialysis participants.