"Evaluation of Ranolazine in Patients With Type 2 Diabetes Mellitus and Chronic Stable Angina"
JACC May 2013
http://content.onlinejacc.org/article.aspx?articleid=1666389 
"Conclusions  Among patients with diabetes and chronic angina despite treatment with up to 2 agents, ranolazine reduced angina and sublingual nitroglycerin use and was well tolerated. (Type 2 Diabetes Evaluation of Ranolazine in Subjects With Chronic Stable Angina [TERISA]; NCT01425359)"