Q&A

Megestrol Acetate for CKD and Dialysis Patients

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Q) Some of my CKD patients are malnourished; in fact, some of those on dialysis do not eat well and have low albumin levels. Previously in this column, it was stated that higher albumin levels (> 4 g/dL) confer survival benefits to dialysis patients. Should I consider prescribing megestrol acetate to improve appetite? If I do prescribe it, what dose is safe for CKD and dialysis patients?

Malnutrition affects one-third of dialysis patients,1 and malnutrition-inflammation complex syn­drome (MICS) is common in those with stage 5 CKD. Albumin is used as an indicator of MICS in dialysis patients; however, since other factors (stress, infection, inflammation, comorbidities) affect nutritional status,2 serum albumin alone may not be sufficient to assess it.

In fact, a recent consensus statement on malnutrition from the Academy of Nutrition and Dietetics and the American Society for Parenteral and Enteral Nutrition excluded serum albumin as a diagnostic characteristic; the criteria included percentage of energy requirement, percentage of weight loss and time frame, loss of body fat and muscle mass, presence of edema, and reduced grip strength.3 These may be better measures of malnutrition in dialysis patients and could be used as criteria for determining when to prescribe an appetite stimulant, such as megestrol acetate.

In recent years, megestrol acetate (an antineoplastic drug) has been used to improve appetite, weight, albumin levels, and MICS in patients receiving maintenance dialysis.1,4-6 Rammohan et al found significant increases in weight, BMI, body fat, triceps skinfold thickness, protein/energy intake, and serum albumin in 10 dialysis patients who took megestrol acetate (400 mg/d) for 16 weeks.4

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