| E.1 Medical condition or disease under investigation |
| E.1.1 | Medical condition(s) being investigated |
| Postmenopausal Osteoporosis |
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| MedDRA Classification |
| E.1.2 Medical condition or disease under investigation |
| E.1.2 | Version | 9.1 |
| E.1.2 | Level | LLT |
| E.1.2 | Classification code | 10017082 |
| E.1.2 | Term | Fracture due to osteoporosis |
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| E.1.2 Medical condition or disease under investigation |
| E.1.2 | Version | 9.1 |
| E.1.2 | Level | LLT |
| E.1.2 | Classification code | 10031285 |
| E.1.2 | Term | Osteoporosis postmenopausal |
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| E.1.3 | Condition being studied is a rare disease | No |
| E.2 Objective of the trial |
| E.2.1 | Main objective of the trial |
In postmenopausal women with osteoporosis:
To evaluate the effect of treatment with MK-0822 50 mg once weekly (OW) on the percent change from baseline in trabecular volumetric bone mineral density (vBMD) at the lumbar spine (assessed by QCT) compared to placebo at Month 24.
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| E.2.2 | Secondary objectives of the trial |
In postmenopausal women with osteoporosis:
1. To evaluate the effect of treatment with MK-0822 50 mg OW on the percent change from baseline in cortical vBMD at the hip (assessed by QCT) compared to placebo at Month 24. 2. To evaluate the effect of treatment with MK-0822 50 mg OW on the percent change from baseline in aBMD at the lumbar spine, hip and hip sub-regions and 1/3 distal forearm (assessed by DXA) compared to placebo at Month 24. 3. To evaluate the effect of treatment with MK-0822 50 mg OW on the percent change in biochemical indices of bone formation [serum-bone specific alkaline phosphatase (s-BSAP) and serum N-terminal propeptides of Type I collagen (s-P1NP)] and bone resorption [serum C-telopeptides of Type I collagen (s-CTx) and urinary N telopeptides of Type I collagen (u-NTx)] compared to placebo at Month 24.
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| E.2.3 | Trial contains a sub-study | No |
| E.3 | Principal inclusion criteria |
1. Participant is already enrolled in Protocol 018. 2. Participant is willing to undergo all QCT and DXA imaging procedures and biomarker assessments. 3. Participant's body habitus allows for QCT scanning (i.e. Body Mass Index (BMI) is ≤ 35 kg/m2). 4. Participant has two hips that are evaluable by DXA and QCT (e.g., contain no hardware from orthopedic procedures). Note: Surgical clips are acceptable.5. Participant has a spinal anatomy suitable for DXA and QCT of the lumbar spine. (e.g. does not have significant scoliosis, bone deformity, hardware or sequelae of orthopedic procedures. Note: Surgical clips are acceptable.) For DXA, at least 2 vertebrae from L1-L4 must be evaluable and for QCT, at least 2 vertebrae from T12-L3 must be evaluable. 6. Participant understands the study procedures and the risks involved with the study and voluntarily agrees to participate by giving written informed consent.
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| E.4 | Principal exclusion criteria |
1. Participant has a history of tremors, Parkinson's disease, multiple sclerosis or other diseases that cause persistent tremors. 2. Participant is unlikely to adhere to the study procedures or keep appointments, or is planning to relocate during the study. 3. Participant baseline QCT imaging scan, of the hip or spine, is of insufficient quality, as confirmed by the central imaging vendor.
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| E.5 End points |
| E.5.1 | Primary end point(s) |
| Volumetric trabecular bone mineral density |
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| E.6 and E.7 Scope of the trial |
| E.6 | Scope of the trial |
| E.6.1 | Diagnosis | No |
| E.6.2 | Prophylaxis | No |
| E.6.3 | Therapy | No |
| E.6.4 | Safety | No |
| E.6.5 | Efficacy | Yes |
| E.6.6 | Pharmacokinetic | No |
| E.6.7 | Pharmacodynamic | No |
| E.6.8 | Bioequivalence | No |
| E.6.9 | Dose response | No |
| E.6.10 | Pharmacogenetic | No |
| E.6.11 | Pharmacogenomic | No |
| E.6.12 | Pharmacoeconomic | No |
| E.6.13 | Others | No |
| E.7 | Trial type and phase |
| E.7.1 | Human pharmacology (Phase I) | No |
| E.7.1.1 | First administration to humans | No |
| E.7.1.2 | Bioequivalence study | No |
| E.7.1.3 | Other | No |
| E.7.1.3.1 | Other trial type description | |
| E.7.2 | Therapeutic exploratory (Phase II) | No |
| E.7.3 | Therapeutic confirmatory (Phase III) | Yes |
| E.7.4 | Therapeutic use (Phase IV) | No |
| E.8 Design of the trial |
| E.8.1 | Controlled | Yes |
| E.8.1.1 | Randomised | Yes |
| E.8.1.2 | Open | No |
| E.8.1.3 | Single blind | No |
| E.8.1.4 | Double blind | Yes |
| E.8.1.5 | Parallel group | Yes |
| E.8.1.6 | Cross over | No |
| E.8.1.7 | Other | Yes |
| E.8.1.7.1 | Other trial design description |
| This is a sub-study to Protocol 0822-018 |
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| E.8.2 | Comparator of controlled trial |
| E.8.2.1 | Other medicinal product(s) | No |
| E.8.2.2 | Placebo | Yes |
| E.8.2.3 | Other | No |
| E.8.3 |
The trial involves single site in the Member State concerned
| No |
| E.8.4 | The trial involves multiple sites in the Member State concerned | Yes |
| E.8.4.1 | Number of sites anticipated in Member State concerned | 5 |
| E.8.5 | The trial involves multiple Member States | No |
| E.8.6 Trial involving sites outside the EEA |
| E.8.6.1 | Trial being conducted both within and outside the EEA | No |
| E.8.6.2 | Trial being conducted completely outside of the EEA | Information not present in EudraCT |
| E.8.7 | Trial has a data monitoring committee | Yes |
| E.8.8 |
Definition of the end of the trial and justification where it is not the last
visit of the last subject undergoing the trial
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| This is an event-driven trial, which will end when the required number of fractures to test the hypotheses have occurred. |
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| E.8.9 Initial estimate of the duration of the trial |
| E.8.9.1 | In the Member State concerned years | 5 |
| E.8.9.1 | In the Member State concerned months | |
| E.8.9.1 | In the Member State concerned days | |