HONG KONG – Chinese drug regulators have granted the first marketing clearance to a homegrown dipeptidyl peptidase-4 (DPP-4) inhibitor for treating type 2 diabetes, developed by Jiangsu Aosaikang Pharmaceutical Co. Ltd. The saxagliptin tablet, which comes in 5 mg or 2.5 mg, is registered as a category IV chemical drug – a generic with equivalent quality and efficacy to the originator's drugs that are already marketed in China.