Association of the modified Glasgow prognostic score and prognostic nutritional index with duration of oral anamorelin administration in patients with cancer cachexia: a retrospective cohort study.

Patients with a mGPS of 2, compared with mGPS of 0 or 1, are less likely to maintain oral anamorelin therapy, regardless of the ECOG-PS or concurrent chemotherapy. Therefore, it is necessary to consider initiating anamorelin administration at mGPS 0 or 1.