The present invention relates to pharmaceutical compositions for the treatment of cancer and especially for the treatment of hematological malignancies such as multiple myeloma. Specifically, the present invention relates to pharmaceutical composition for the treatment of cancer comprising: thalidomide, or a derivative thereof, or salts or solvates thereof； one or more artemisinin compounds, or salts or solvates thereof； and one or more pharmaceutically acceptable carriers and/or excipients.
