Compositions comprising 2-((5Z,8Z,11Z,14Z,17Z)-icosa-5,8,11,14,17-pentaenyloxy)butanoic acid, an ester derivative, or a pharmaceutically acceptable salt thereof; a triglyceride; and a surfactant, as well as methods for their use. The present disclosure further relates to self-emulsifying drug delivery systems, such as SEDDS, SMEDDS, or SNEDDS comprising 2-((5Z,8Z,11Z,14Z,17Z)-icosa-5,8,11,14,17-pentaenyloxy)butanoic acid.