Doses of C.E.R.A. were decreased by 25% for Hb values >12 and ≤13 g/dL and increased by 25% for Hb <11 and ≥10 g/dL. C.E.R.A. dose was increased by 50% for Hb <10 g/dL. Treatment was interrupted temporarily if Hb exceeds 13 g/dL.