Overview STAAR-1 Clinical Study Status: Completed Trial end date: 2004-05-01 Target enrollment: Participant gender: Summary To assess the effect of Aranesp on the hemoglobin of CRI subjects who are recombinant human erythropoetin (rHuEPO)-naïve or converting from rHuEPO therapy Phase: Phase 4 Details Lead Sponsor: AmgenTreatments: Darbepoetin alfa