Some additional information about the efficacy of icatibant in patients with ACE induced angioedema has been added to the Angioedema page.
Bas, M, Greve, J, Stelter, K, et al. A randomized trial of icatibant in ACE-inhibitor-induced angioedema. N Engl J Med 2015;372(5):418-25. http://www.ncbi.nlm.nih.gov/pubmed/25629740.