Efter et år (primær analyse) havde 91, 3% (p=0, 005) af de patienter, som fik Bonviva 150 mg én gang om måneden, en stigning i lumbal BMD over eller lig baseline (BMD respondenter), sammenlignet med 84, 0% af de patienter, som fik ibandronsyre 2, 5 mg daglig.
At one year (primary analysis), 91.3% (p=0.005) of patients receiving Bonviva 150 mg once monthly had a lumbar spine BMD increase above or equal to baseline (BMD responders), compared with 84.0% of patients receiving ibandronic acid 2.5 mg daily.