Primary Prevention of Thrombocytopenia Associated With T-DM1 Therapy in HER2 Positive Breast Cancer With Herombopag

Each T-DM1 treatment cycle typically lasts 3 weeks, with prophylactic administration of eltrombopag continuing until 21 days after the end of that T-DM1 treatment cycle. Oral administration of eltrombopag ethanolamine tablets begins on the evening of the first day of each T-DM1 treatment cycle, starting at a dose of 7.5 mg once daily.