Amylin Pharmaceuticals Inc., of San Diego, Alkermes Inc., of Waltham, Mass., and Eli Lilly and Co., of Indianapolis, said the European Commission approved Bydureon (exenatide), a once-weekly version of GLP-1 receptor agonist Byetta, for Type II diabetes in adults in combination with metformin, a sulfonylurea, a thiazolidinedione, metformin plus a sulfonylurea or metformin plus a thiazolidinedione.