I undersøgelsen af tredobbelt behandling blev der set på virkningen af Glustin hos over 1 400 patienter, som fik en kombination af metformin og et sulfonylurinstof i tillæg til enten Glustin eller placebo i op til 3, 5 år.
In triple therapy, the effectiveness of Glustin was studied in more than 1,400 patients who were receiving a combination of metformin and a sulphonylurea, to which was added either Glustin or placebo for up to 3.5 years.