Combination of a pi3k inhibitor with a bcl-2 inhibitor for use in the treatment of cancer

Provided herein are pharmaceutical compositions comprising a phosphatidylinositol 3-kinase inhibitor or a pharmaceutically acceptable form thereof, and a Bcl-2 inhibitor or a pharmaceutically acceptable form thereof. Also provided herein are methods for treating cancer comprising administration the compositions, and uses of the compositions, e.g., for the treatment of cancer.