(z)-endoxifen and CDK4 / 6 inhibitor compositions and methods of use thereof

Abstract

The present disclosure relates to compositions and methods for treating hormone receptor positive (HR+) cancer with (Z)-endoxifen and a CDK4 / 6 inhibitor, such as abemaciclib. The disclosure is based on the discovery that (Z)-endoxifen and abemaciclib have synergistic effects on reducing tumor growth and proliferation in breast cancer models. The disclosure also provides fixed dose combinations of (Z)-endoxifen and abemaciclib, which offers advantages in terms of convenience and compliance. The compositions and methods are suitable for treating subjects with hormone receptor positive (HR+) and human epidermal growth factor receptor

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