Conditions: Involutional Osteoporosis
Keywords: Drug Therapy
Allocation: RANDOMIZED | Intervention model: PARALLEL
Enrollment: 871
Healthy volunteers: no

Brief summary:
The present phase II/III, multicenter, randomized, double-blind, parallel group comparative study is designed to evaluate the efficacy and safety of once-monthly oral administration of NE-58095 delayed release (DR) tablets for 12 months in participants with involutional osteoporosis. For this study, participants receiving oral NE-58095 immediate release (IR) 2.5 mg tablets once daily for 12 months are set as the control group.

Detailed description:
The primary objective of the present study is to verify the non-inferiority of once-monthly oral administration of NE-58095 DR tablets for 12 months to once-daily oral administration of NE-58095 IR 2.5 mg tablets for 12 months, in terms of efficacy in participants with involutional osteoporosis.

Secondary objectives of the present study are as follows: to compare the safety of once-monthly oral administration of NE-58095 DR tablets for 12 months with the safety of once-daily oral administration of NE-58095 IR tablets (at 2.5 mg) for 12 months in participants with involutional osteoporosis at time of wakening.

Arms:
arm 1: NE-58095 immediate release (IR) 2.5 mg tablet, orally, once, daily, at time of wakening + NE-58095 delayed release (DR) placebo-matching tablet, orally, once, monthly, at time of wakening + NE-58095 DR placebo-matching tablet, orally, once, monthly, following breakfast + NE-58095 DR placebo-matching tablet, orally, once, monthly, 30 minutes after breakfast, for up to 12 months. Calcium lactate hydrate 195 mg, once, daily, after dinner was taken as a background medication. arm 2: NE-58095 DR 25 mg tablet, orally, once, monthly, at time of wakening + NE-58095 DR placebo-matching tablet, orally, once, monthly, following breakfast + NE-58095 DR placebo-matching tablet, orally, once, monthly, 30 minutes after breakfast + NE-58095 IR placebo-matching tablet, orally, once, daily, at time of wakening, for up to 12 months. Calcium lactate hydrate 195 mg, once, daily, after dinner was taken as a background medication. arm 3: NE-58095 DR 25 mg tablet, orally, once, monthly, following breakfast + NE-58095 DR placebo-matching tablet, orally, once, monthly, 30 minutes after breakfast + NE-58095 DR placebo-matching tablet, orally, once, monthly, at time of wakening + NE-58095 IR placebo-matching tablet, orally, once, daily, at time of wakening, for up to 12 months. Calcium lactate hydrate 195 mg, once, daily, after dinner was taken as a background medication. arm 4: NE-58095 DR 25 mg tablet, orally, once, monthly, 30 minutes after breakfast + NE-58095 DR placebo-matching tablet, orally, once, monthly, following breakfast + NE-58095 DR placebo-matching tablet, orally, once, monthly, at time of wakening + NE-58095 IR placebo-matching tablet, orally, once, daily, at time of wakening, for up to 12 months. Calcium lactate hydrate 195 mg, once, daily, after dinner was taken as a background medication. arm 5: NE-58095 DR 37.5 mg tablet, orally, once, monthly, at time of wakening + NE-58095 DR placebo-matching tablet, orally, once, monthly, following breakfast + NE-58095 DR placebo-matching tablet, orally, once, monthly, 30 minutes after breakfast + NE-58095 IR placebo-matching tablet, orally, once, daily, at time of wakening, for up to 12 months. Calcium lactate hydrate 195 mg, once, daily, after dinner was taken as a background medication. arm 6: NE-58095 DR 37.5 mg tablet, orally, once, monthly, following breakfast + NE-58095 DR placebo-matching tablet, orally, once, monthly, 30 minutes after breakfast + NE-58095 DR placebo-matching tablet, orally, once, monthly, at time of wakening + NE-58095 IR placebo-matching tablet, orally, once, daily, at time of wakening, for up to 12 months. Calcium lactate hydrate 195 mg, once, daily, after dinner was taken as a background medication. arm 7: NE-58095 DR 37.5 mg tablet, orally, once, monthly, 30 minutes after breakfast + NE-58095 DR placebo-matching tablet, orally, once, monthly, following breakfast + NE-58095 DR placebo-matching tablet, orally, once, monthly, at time of wakening + NE-58095 IR placebo-matching tablet, orally, once, daily, at time of wakening, for up to 12 months. Calcium lactate hydrate 195 mg, once, daily, after dinner was taken as a background medication.

Interventions: intervention 1: NE-58095 IR intervention 2: NE-58095 IR Placebo intervention 3: NE-58095 DR intervention 4: NE-58095 DR Placebo
Intervention descriptions: intervention 1: NE-58095 IR tablets intervention 2: NE-58095 IR placebo-matching tablets intervention 3: NE-58095 DR tablets intervention 4: NE-58095 DR placebo-matching tablets

Protocol document: