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A Phase III Randomized, Placebo-Controlled Study to Evaluate the Effect of Odanacatib (MK-0822) on Bone Mineral Density (BMD) and Overall Safety, and to Estimate the Effect of Odanacatib (MK-0822) on Bone Micro-architecture in Postmenopausal Women Treated with Vitamin D

A Phase III Randomized, Placebo-Controlled Study to Evaluate the Effect of Odanacatib (MK-0822) on Bone Mineral Density (BMD) and Overall Safety, and to Estimate the Effect of Odanacatib (MK-0822) on Bone Micro-architecture in Postmenopausal Women Treated with Vitamin D

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
EU CTR
Registry ID
EUCTR2008-004504-31-SE
Enrollment
180
Registered
2008-07-25
Start date
2008-09-16
Completion date
Unknown
Last updated
2012-05-15

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

low BMD (bone mineral density) MedDRA version: 9.1 Level: LLT Classification code 10032364 Term: Other osteoporosis

Interventions

Chemical name: N1-(1-cyanocyclopropyl)-4-fluoro-N2-{(1S)-2,2,2-trifluoro-1-[4’-(methylsulfo Product Code: MK-0822 Pharmaceutical Form: Tablet INN or Proposed INN: odanacatib CAS Number: 603139-19-1 Co

Sponsors

Merck Sharp & DOhme (Sweden) AB
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. Patient is 45-85 years of age on the day of Randomization. 2. Patient has been postmenopausal for at least 3 years, defined as no menses for at least 3 years OR at least 3 years status post bilateral oophorectomy. 3. Patient has a BMD t-Score at the total hip, hip trochanter, femoral neck or lumbar spine =–1.5 but >–3.5. Are the trial subjects under 18? no Number of subjects for this age range: F.1.2 Adults (18-64 years) yes F.1.2.1 Number of subjects for this age range F.1.3 Elderly (>=65 years) yes F.1.3.1 Number of subjects for this age range

Exclusion criteria

Exclusion criteria: 1. The investigator believes that the patient is at sufficiently high risk for osteoporotic fracture within the next 24 months such that randomization to placebo would be unacceptable (e.g. patient has a BMD t-Score of <-3.5 AND history of low-dose glucocorticoid use). 2. Patient has had a previous hip fracture at any time. 3. Patient has experienced a non-hip clinical fragility fracture (including a clinical vertebral fracture) within 24 months. (Note: finger, toe and skull fractures are not considered with regard to this exclusion criterion) 4. Patient has had more than 1 prior clinical vertebral fracture and she is a suitable candidate for osteoporosis therapy. (i.e. bisphosphonates, strontium, or PTH). 5. Patient has chosen treatment with oral bisphosponates or other agents demonstrated to reduce the risk of hip fracture.

Design outcomes

Primary

MeasureTime frame
Secondary Objective: In postmenopausal women with low BMD: (1) Objective: To evaluate at 24 months the effect of treatment with MK-0822 50 mg OW on aBMD at the lumbar spine (assessed by DXA) compared to placebo (2) Objective: To evaluate at 12 and 24 months the effect of treatment with MK-08 22 50 mg OW on aBMD at the total hip, femoral neck, hip trochanter and one-third distal forearm (assessed by DXA) compared to placebo (3) Objective: To estimate at 12 and 24 months the effect of treatment with MK-0822 50 mg OW on trabecular volumetric BMD (vBMD) at the lumbar spine (assessed by QCT) (4) Objective: To estimate at 12 and 24 months the effect of treatment with MK-0822 50 mg OW in biochemical indices of bone formation (s-P1NP) and bone resorption (s-CTx) ;Primary end point(s): Areal BMD at the lumbar spine (at 12 months);Main Objective: In postmenopausal women with low BMD: Objective: To evaluate at 12 months the effect of treatment with MK-0822 50 mg OW on areal BMD (aBMD) at the lumbar spine (assessed by DXA) compared to placebo Objective: To assess at 12 and 24 months the safety and tolerability of treatment with MK-0822 50 mg OW compared to placebo

Countries

Denmark, France, Germany, Sweden

Outcome results

None listed

Source: EU CTR (via WHO ICTRP) · Data processed: Feb 4, 2026