Det blev her sammenlignet med placebo (virkningsløs behandling), med metformin og med rosiglitazon, der er et thiazolidindion.
Three of these studies looked at the effects of Galvus taken alone in a total of 2,198 patients who had not taken diabetes treatment before, comparing it to placebo (a dummy treatment), metformin or rosiglitazone (a thiazolidinedione).