Expanded access to anticancer treatments from conversion to biosimilar pegfilgrastim-cbqv in US breast cancer patients.

Aim: To estimate cost-savings from conversion to biosimilar pegfilgrastim-cbqv that could be reallocated to provide budget-neutral expanded access to AC (doxorubicin/cyclophosphamide) and TCH (docetaxel/carboplatin/trastuzumab) in breast cancer (BC) patients. Methods: Simulation modeling in panels of 20,000 BC and 5000 HER2-positive (HER2+ BC) patients, varying treatment duration (one-six cycles) and conversion rates (10-100%), to estimate cost-savings and additional AC and TCH treatment that could be provided. Results: In 20,000 patients, cost-savings of $1,083 per-patient per-cycle translate to $21,652,064 (one cycle) to $129,912,397 (six cycles). Savings range from $5,413,016 to $32,478,097, respectively, in the 5000-patient HER2+ BC panel. Conclusion: Conversion to pegfilgrastim-cbqv could save up to $130 million and provide more than 220,000 additional cycles of antineoplastic treatment on a budget-neutral basis to BC patients.