Forsøgene rekrutterede enten patienter, som var i behandling med kemoterapi (to forsøg) eller benyttede patientpopulationer, hvor erythropoiese- stimulerende stoffer ikke er indiceret: anæmi hos patienter med cancer, som ikke fik kemoterapi, og hoved - og halscancer hos patienter, som fik strålebehandling.
The studies either recruited patients who were being treated with chemotherapy (two studies) or used patient populations in which erythropoiesis stimulating agents are not indicated: anaemia in patients with cancer not receiving chemotherapy, and head and neck cancer patients receiving radiotherapy.