I undersøgelsen af patienter, der fik glukokortikoider, var Forsteo mere effektivt end alendronat: hos patienter, som fik Forsteo, øgedes knogletætheden i rygsøjlen med 7% sammenlignet med 3% hos dem, der fik alendronat.
In the study of patients taking glucocorticoids, Forsteo was more effective than alendronate: after 18 months, patients receiving Forsteo had a 7% increase in bone density in the spine, compared with 3% in those receiving alendronate.