The present invention relates generally to stable liquid formulations comprising polypeptides with10Fn3 domains which bind to myostatin and unit dosage forms thereof for administration via various routes, including subcutaneous (SC), for treating muscle-wasting and metabolic disorders.本發明大體上係關於包含結合至肌肉生長抑制素之具有10Fn3結構域之多肽的穩定液體調配物及其單位劑型,其用於經由包括皮下(SC)之多種途徑投與來治療肌肉消瘦及代謝病症。