0a46e0e2_Text_View___ClinicalTrials_gov__Assigned_Interventions
[Arms] Active Comparator: 3 Participants in this group will have been treated with alendronate for at least 1 year prior to study entry. Upon study entry, they will continue taking alendronate alone. Biopsies will be performed at Week 7 and then participants in this group will be offered teriparatide as part of Group 2 or 3. [Assigned Interventions] 
Drug: Alendronate Participants will take 70 mg per week of alendronate for 48 months. Dietary Supplement: Calcium Calcium supplements will be administered in varied amounts for all participants, but each participant will take enough to bring her total daily calcium intake to 1,200 mg. Dietary Supplement: Vitamin D3 Vitamin D3 supplements will be administered in varied amounts for all participants, but each participant will take enough to bring her total daily intake to 1,200 mg.
Cyclic Versus Daily Teriparatide on Bone Mass - Full Text View - ClinicalTrials.gov