The present invention relates to a formulation comprising an inhibitor of NFAT activation for use in treating or preventing undesirable effects, more particularly undesirable effects occurring in conjunction with T cell-mediated therapies. The undesirable effects may be cytokine release syndrome (CRS) or symptoms associated with gastrointestinal (GI) inflammation, for example associated with inflammatory bowel diseases, such as ulcerative colitis, optionally caused by activated T cell activity. In addition to ameliorating undesirable effects, the invention is aimed at also maintaining the therapeutic effects of the T-cell mediated therapy.
