Abstract: This disclosure features compositions (e.g., re-constitutable solids, such as lyophilized cakes; or liquid compositions, such as solutions or suspensions, e.g., reconstituted lyophilized cakes) that are suitable for subcutaneous administration. The compositions include a crystalline form (e.g., Form A) of 6-O-(4-dimethylaminoethoxy)cinnamoyl fumagillol, free base and one or more pharmaceutically acceptable excipients and/or one or more pharmaceutically acceptable carriers (e.g., one or more bulking agents; one or more dispersing agents; one or more buffers; one or more suspending agents; water, e.g., water for injection (“WFI”)).