- Ongoing treatment with 1 or 2 of the following OADs (metformin, insulin secretagogue (sulphonylurea or glinides) or pioglitazone) in any combination with unchanged dosing for at least 3 months prior to Visit 1 with the minimum doses stated: -Metformin: alone or in combination (including fixed combination)1500 mg or maximum tolerated dose (at least 1000 mg daily) -Insulin secretagogue (sulfonylurea or glinide): minimum half of the maximal daily dose according to local labelling -Pioglitazone: minimum half of the maximal daily dose according to local labelling or maximum tolerated dose