Described herein are antibody formulations including a therapeutic antibody at a concentration of at least 20 mg/ml, methods for optimizing and producing such antibody formulations, and methods of using such antibody formulations. Antibody formulations including a therapeutic antibody at a concentration of at least about 20 mg/mL are described herein. For example, described are high concentration solutions and formulations of aglycosylated antibod(ies), methods of making such formulations, and methods for using such formulations. The described formulations, when solutions, exhibit reduced viscosity and good stability.
