The present invention relates to pharmaceutical compositions comprising an antibody or a fragment thereof suitable for freeze-drying (i.e. lyophilizing). The pharmaceutical compositions, which comprise an antibody or an antigen-binding fragment thereof; from 1% to 20% w/v sucrose; an amino acid or a mixture of amino acids; and surfactant, are provided as pharmaceutical compositions for freeze-drying; as freeze-dried (i.e. lyophilized) compositions which can be reconstituted into a solvent at the time of use or as reconstituted liquid formulations ready for administration.