OsteoporosisPhase 3NCT00729183
Study to Evaluate Efficacy of Odanacatib (MK-0822) on Bone Mineral Density (BMD) and Bone Micro-architecture and Overall Safety in Postmenopausal Women (MK-0822-031)
A Phase 3 study testing Odanacatib, Vitamin D3 and Calcium supplement in people with Osteoporosis, run by Merck Sharp & Dohme LLC.
Trial summary
This study will evaluate the safety and treatment effect of 50 mg odanacatib (MK-0822) with Vitamin D versus placebo with Vitamin D in postmenopausal women with low bone density. The primary efficacy hypothesis is that odanacatib will increase aBMD at the lumbar spine compared to placebo at 12 months. Read more about this study
- Who is it for?
- Ages 45 to 85 years, women only
- Conditions the study is for
- Osteoporosis
- What is being tested?
- Odanacatib, Vitamin D3 and Calcium supplement
- Type of treatment
- Pill or oral medicine
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 214 participants
- Where
- No sites listed yet
- Study dates
- 2 Oct 2008to 21 Mar 2011
- Phase
- Phase 3
- Are there results?
- Yes, posted in the registrySummary in the doctors' view
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 45 to 85 years
- Women only
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Participant has been postmenopausal for 3 years
- Participant has BMD t-score at the total hip, hip trochanter, femoral neck, or lumbar spine ≥ -1.5 but > -3.5
- Participant has 2 hips that are evaluable by dual-energy X-ray absorptiometry (DXA) and quantitative computed tomography (QCT), e.g. contain no hardware from orthopedic procedures
- Participant is ambulatory
Who cannot join
- Participant has had a previous hip fracture
- Participant has had >1 prior clinical vertebral fracture AND is a candidate for osteoporosis therapy
- Participant has been treated with oral bisphosphonates, strontium, parathyroid hormone (PTH) or other agents with an effect on bone
- Participant has had metabolic bone disorder other than osteoporosis
- Participant has renal stones, Parkinson's disease, multiple sclerosis (MS) or active parathyroid disease.
About this study
Official title: 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
This study will evaluate the safety and treatment effect of 50 mg odanacatib (MK-0822) with Vitamin D versus placebo with Vitamin D in postmenopausal women with low bone density. The primary efficacy hypothesis is that odanacatib will increase aBMD at the lumbar spine compared to placebo at 12 months.
- Conditions
- Osteoporosis
- Being tested
- Odanacatib, Placebo, Vitamin D3, Calcium supplement
- Medical subject headings
- Osteoporosis
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
OdanacatibDrug
Also called MK-0822
Odanacatib 50 mg tablets, taken orally once weekly for 24 months.
PlaceboDrug
Matching placebo tablets to odanacatib taken orally once weekly for 24 months.
Vitamin D3Drug
Vitamin D3 tablets (5600 IU) taken orally once weekly for 24 months.
Calcium supplementDrug
Also called calcium carbonate, calcium citrate
Calcium supplement 500 mg tablet taken orally once daily (up to ~1200 mg total) for 24 months.
| Study group | Role | What they receive |
|---|---|---|
| Odanacatib 50 mg | Experimental | Participants receive 50 mg odanacatib and open-label 5600 IU vitamin D3 tablets once weekly for 24 months. Participants also receive 500 mg of open-label daily calcium supplement as needed to ensure a total daily calcium intake of 1200 mg. Receives: Drug: Odanacatib; Drug: Vitamin D3; Drug: Calcium supplement |
| Placebo | Placebo comparator | Participants receive matching placebo to odanacatib and open-label 5600 IU vitamin D3 once weekly for 24 months. Participants also receive 500 mg of open-label daily calcium supplement as needed to ensure a total daily calcium intake of 1200 mg. Receives: Drug: Placebo; Drug: Vitamin D3; Drug: Calcium supplement |
What is being measured
The primary outcome is the main question the study is designed to answer.
Percent Change From Baseline to Month 12 in Lumbar Spine Areal Bone Mineral Density (aBMD)
aBMD (g/cm^2) was measured by dual-energy X-ray absorptiometry (DXA) at the lumbar spine and mean BMD measurements from at least 3 evaluable lumbar spine vertebrae (L1-L4) were used. If a vertebra was fractured at baseline or became fractured during the study, its BMD measurement was excluded from the analysis and the lumbar spine BMD was recalculated based on the three remaining vertebrae. aBMD data was centrally evaluated and all areal BMD measurements included a longitudinal BMD correction factor as determined by the quality control center. aBMD at the lumbar spine was assessed at the Screening visit (Baseline), Month 6, Month 12, and Month 24 for the repeated measures longitudinal Analysis of Covariates (ANCOVA) model, with percent change from baseline at Months 12 and 24 pre-specified to be reported as primary and secondary outcome measures, respectively.
Measured: Baseline, 12 months
Percentage of Participants That Experienced an Adverse Event (AE)
An AE was defined as any unfavorable and unintended change in the structure, function, or chemistry of the body temporally associated with the use of the SPONSOR's products, whether or not considered related to the use of the product. Any worsening (i.e., any clinically significant adverse change in frequency and/or intensity) of a preexisting condition which is temporally associated with the use of the SPONSOR's product was also an AE. The percentage of participants that experienced at least one AE was reported for each treatment arm.
Measured: Up to ~14 days post study end (up to ~24 months)
Percentage of Participants That Discontinued Study Treatment Due to an AE
An AE was defined as any unfavorable and unintended change in the structure, function, or chemistry of the body temporally associated with the use of the SPONSOR's products, whether or not considered related to the use of the product. Any worsening (i.e., any clinically significant adverse change in frequency and/or intensity) of a preexisting condition which is temporally associated with the use of the SPONSOR's product was also an AE. The percentage of participants that discontinued study treatment (different from discontinuation of the study) due to an AE was reported for each treatment arm.
Measured: Up to ~14 days post study end (up to ~24 months)
Secondary outcomes (11)
Percent Change From Baseline to Month 24 in Lumbar Spine aBMD
aBMD (g/cm^2) was measured by DXA at the lumbar spine and mean BMD measurements from at least 3 evaluable vertebrae from L1 through L4 were used. If a vertebra was fractured at baseline or became fractured during the study, its BMD measurement was excluded from the analysis and the lumbar spine BMD was recalculated based on the three remaining vertebrae. aBMD data was centrally evaluated and all areal BMD measurements included a longitudinal BMD correction factor as determined by the quality control center. aBMD at the lumbar spine was assessed at the Screening visit (Baseline), Month 6, Month 12, and Month 24 for the repeated measures longitudinal ANCOVA model, with percent change from baseline at Months 12 and 24 pre-specified to be reported as primary and secondary outcome measures, respectively.
Measured: Baseline, 24 months
Percent Change From Baseline in Total Hip aBMD
aBMD (g/cm^2) data was measured by DXA at the total hip. All measurements utilized the same hip and at least 2 vertebrae for all time points. The left hip only was scanned. If the left hip was unevaluable, then the right hip was scanned. Once the appropriate leg was identified for scanning, it was used for all subsequent measurements. aBMD data was centrally evaluated and all areal BMD measurements included a longitudinal BMD correction factor as determined by the quality control center. aBMD at the total hip was assessed at the Screening visit (Baseline), Month 6, Month 12, and Month 24 for the repeated measures longitudinal ANCOVA model, with percent change from baseline at Months 12 and 24 pre-specified to be reported as secondary outcome measures.
Measured: Baseline, 12 months, 24 months
Percent Change From Baseline in Femoral Neck aBMD
aBMD (g/cm^2) data was measured by DXA at the femoral neck (hip). All measurements utilized the same hip and at least 2 vertebrae for all time points. The left hip only was scanned. If the left hip was unevaluable, then the right hip was scanned. Once the appropriate leg was identified for scanning, it was used for all subsequent measurements. aBMD data was centrally evaluated and all areal BMD measurements included a longitudinal BMD correction factor as determined by the quality control center. aBMD at the femoral neck was assessed at the Screening visit (Baseline), Month 6, Month 12, and Month 24 for the repeated measures longitudinal ANCOVA model, with percent change from baseline at Months 12 and 24 pre-specified to be reported as secondary outcome measures.
Measured: Baseline, 12 months, 24 months
Percent Change From Baseline in Hip Trochanter aBMD
aBMD (g/cm^2) data was measured by DXA at the hip trochanter. All measurements utilized the same hip and at least 2 vertebrae for all time points. The left hip only was scanned. If the left hip was unevaluable, then the right hip was scanned. Once the appropriate leg was identified for scanning, it was used for all subsequent measurements. aBMD data was centrally evaluated and all areal BMD measurements included a longitudinal BMD correction factor as determined by the quality control center. aBMD at the hip trochanter was assessed at the Screening visit (Baseline), Month 6, Month 12, and Month 24 for the repeated measures longitudinal ANCOVA model, with percent change from baseline at Months 12 and 24 pre-specified to be reported as secondary outcome measures.
Measured: Baseline, 12 months, 24 months
Percent Change From Baseline in Total Radius aBMD
aBMD (g/cm^2) data was measured by DXA at the total radius (forearm). aBMD data was centrally evaluated and all areal BMD measurements included a longitudinal BMD correction factor as determined by the quality control center. aBMD at the total radius was assessed at the Screening visit (Baseline), Month 6, Month 12, and Month 24 for the repeated measures longitudinal ANCOVA model, with percent change from baseline at Months 12 and 24 pre-specified to be reported as secondary outcome measures.
Measured: Baseline, 12 months, 24 months
Percent Change From Baseline in Ultradistal Radius aBMD
aBMD (g/cm^2) data was measured by DXA at the ultradistal radius (forearm). aBMD data was centrally evaluated and all areal BMD measurements included a longitudinal BMD correction factor as determined by the quality control center. aBMD at the ultradistal radius was assessed at the Screening visit (Baseline), Month 6, Month 12, and Month 24 for the repeated measures longitudinal ANCOVA model, with percent change from baseline at Months 12 and 24 pre-specified to be reported as secondary outcome measures.
Measured: Baseline, 12 months, 24 months
Percent Change From Baseline in Distal Radius aBMD
aBMD (g/cm^2) data was measured by DXA at the one-third distal radius (forearm). aBMD data was centrally evaluated and all areal BMD measurements included a longitudinal BMD correction factor as determined by the quality control center. aBMD at the distal radius was assessed at the Screening visit (Baseline), Month 6, Month 12, and Month 24 for the repeated measures longitudinal ANCOVA model, with percent change from baseline at Months 12 and 24 pre-specified to be reported as secondary outcome measures.
Measured: Baseline, 12 months, 24 months
Percent Change From Baseline in Trabecular Volumetric Bone Mineral Density (vBMD) at Central Section of Spine (L1)
Trabecular vBMD at the lumbar spine (L1) was measured by quantitative computed tomography (QCT). All QCT-derived vBMD measurements were evaluated centrally (and possibly locally) for bone and soft tissue abnormalities. Trabecular vBMD at the lumbar spine (L1) was assessed at the Screening visit (Baseline), Month 6, Month 12, and Month 24 for the repeated measures longitudinal ANCOVA model, with percent change from baseline at Months 12 and 24 pre-specified to be reported as secondary outcome measures.
Measured: Baseline, 12 months, 24 months
Percent Change From Baseline in Trabecular vBMD at Central Section of Spine (L2)
Trabecular vBMD at the lumbar spine (L2) was measured by quantitative computed tomography (QCT). All QCT-derived vBMD measurements were evaluated centrally (and possibly locally) for bone and soft tissue abnormalities. Trabecular vBMD at the lumbar spine (L2) was assessed at the Screening visit (Baseline), Month 6, Month 12, and Month 24 for the repeated measures longitudinal ANCOVA model, with percent change from baseline at Months 12 and 24 pre-specified to be reported as secondary outcome measures.
Measured: Baseline, 12 months, 24 months
Percent Change From Baseline in Serum C-Terminal Telopeptides of Type 1 Collagen (s-CTx) Level
s-CTx is a biochemical marker index of bone resorption. s-CTx was measured via fasting blood draws at Baseline (Randomization), Month 6, Month 12, Month 18, and Month 24 for the repeated measures longitudinal ANCOVA model, with percent change from baseline at Months 12 and 24 pre-specified to be reported as secondary outcome measures. S-CTx was analyzed using the log-transformed fraction from baseline using the per-protocol approach. Data were back-transformed for presentation and geometric LS mean percent change from baseline was reported with 95% CI.
Measured: Baseline, 12 months, 24 months
Percent Change From Baseline in Serum N-Terminal Propeptides of Type 1 Collagen (s-P1NP) Level
s-P1NP is a biochemical marker index of bone formation. s-P1NP was measured via fasting blood draws at Baseline (Randomization), Month 6, Month 12, Month 18, and Month 24 for the repeated measures longitudinal ANCOVA model, with percent change from baseline at Months 12 and 24 pre-specified to be reported as secondary outcome measures. s-P1NP was analyzed using the log-transformed fraction from baseline using the per-protocol approach. Data were back-transformed for presentation and geometric LS mean percent change from baseline was reported with 95% CI.
Measured: Baseline, 12 months, 24 months
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted7 Aug 2008 (estimated)
- Study start2 Oct 2008
- Primary completion23 Mar 2010
- Study completion21 Mar 2011
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Posted resultsParticipant flow, outcome measures and adverse events reported by the sponsor.
- Publications (2)Papers the sponsor has linked to this study.
- Other trials for OsteoporosisStudies of the same condition, open and under way.
- More trials run by Merck Sharp & Dohme LLCThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 3
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind
- Who is masked
- Participant, Investigator
- Enrolment
- 214 participants (actual)
Sponsor and investigators
- Lead sponsor
- Merck Sharp & Dohme LLC
- Sponsor type
- Industry (pharma, biotech, devices)
- Responsible party
- Sponsor
- Investigators
- Medical Monitor, Study director, Merck Sharp & Dohme LLC
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00729183
- Sponsor's protocol ID
- 0822-031
- Other IDs
- 2008_539
- Status last verified
- Jul 2018
- First submitted
- 4 Aug 2008
- Last updated
- 27 Aug 2018
- Results posted
- Yes, on ClinicalTrials.gov
- Data monitoring committee
- No
- Individual data sharing
- Yes: https://www.merck.com/clinical-trials/pdf/ProcedureAccessClinicalTrialData.pdf
Publications
Engelke K, Fuerst T, Dardzinski B, Kornak J, Ather S, Genant HK, de Papp A. Odanacatib treatment affects trabecular and cortical bone in the femur of postmenopausal women: results of a two-year placebo-controlled trial. J Bone Miner Res. 2015 Jan;30(1):30-8. doi: 10.1002/jbmr.2292.
PubMed 24898537Brixen K, Chapurlat R, Cheung AM, Keaveny TM, Fuerst T, Engelke K, Recker R, Dardzinski B, Verbruggen N, Ather S, Rosenberg E, de Papp AE. Bone density, turnover, and estimated strength in postmenopausal women treated with odanacatib: a randomized trial. J Clin Endocrinol Metab. 2013 Feb;98(2):571-80. doi: 10.1210/jc.2012-2972. Epub 2013 Jan 21.
PubMed 23337728
Study at a glance
From the registry record, last updated by the sponsor on 27 Aug 2018. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- 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
- ClinicalTrials.gov ID
- NCT00729183
- Acronym / sponsor ID
- 0822-031
- Conditions
- Osteoporosis
- Phase
- Phase 3
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 214 participants (actual)
- Lead sponsor
- Merck Sharp & Dohme LLCIndustry (pharma, biotech, devices)
- Study start
- 2 Oct 2008 (actual)
- Primary completion
- 23 Mar 2010 (actual)
- Study completion
- 21 Mar 2011 (actual)
- First posted
- 7 Aug 2008 (estimated)
- Results
- Posted 16 May 2017
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This study will evaluate the safety and treatment effect of 50 mg odanacatib (MK-0822) with Vitamin D versus placebo with Vitamin D in postmenopausal women with low bone density. The primary efficacy hypothesis is that odanacatib will increase aBMD at the lumbar spine compared to placebo at 12 months.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind (participant, investigator)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Odanacatib 50 mg | Experimental | Drug: Odanacatib, Drug: Vitamin D3, Drug: Calcium supplementParticipants receive 50 mg odanacatib and open-label 5600 IU vitamin D3 tablets once weekly for 24 months. Participants also receive 500 mg of open-label daily calcium supplement as needed to ensure a total daily calcium intake of 1200 mg. |
| Placebo | Placebo comparator | Drug: Placebo, Drug: Vitamin D3, Drug: Calcium supplementParticipants receive matching placebo to odanacatib and open-label 5600 IU vitamin D3 once weekly for 24 months. Participants also receive 500 mg of open-label daily calcium supplement as needed to ensure a total daily calcium intake of 1200 mg. |
Who may qualify
- Ages
- 45 to 85 years
- Sex
- Female only
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (4 listed)
- Participant has been postmenopausal for 3 years
- Participant has BMD t-score at the total hip, hip trochanter, femoral neck, or lumbar spine ≥ -1.5 but > -3.5
- Participant has 2 hips that are evaluable by dual-energy X-ray absorptiometry (DXA) and quantitative computed tomography (QCT), e.g. contain no hardware from orthopedic procedures
- Participant is ambulatory
Key exclusion criteria (5 listed)
- Participant has had a previous hip fracture
- Participant has had >1 prior clinical vertebral fracture AND is a candidate for osteoporosis therapy
- Participant has been treated with oral bisphosphonates, strontium, parathyroid hormone (PTH) or other agents with an effect on bone
- Participant has had metabolic bone disorder other than osteoporosis
- Participant has renal stones, Parkinson's disease, multiple sclerosis (MS) or active parathyroid disease.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| OdanacatibAlso: MK-0822Odanacatib 50 mg tablets, taken orally once weekly for 24 months. | Drug | Odanacatib 50 mg |
| PlaceboMatching placebo tablets to odanacatib taken orally once weekly for 24 months. | Drug | Placebo |
| Vitamin D3Vitamin D3 tablets (5600 IU) taken orally once weekly for 24 months. | Drug | Odanacatib 50 mg, Placebo |
| Calcium supplementAlso: calcium carbonate, calcium citrateCalcium supplement 500 mg tablet taken orally once daily (up to ~1200 mg total) for 24 months. | Drug | Odanacatib 50 mg, Placebo |
Primary outcome
Percent Change From Baseline to Month 12 in Lumbar Spine Areal Bone Mineral Density (aBMD)
Time frame: Baseline, 12 months
aBMD (g/cm^2) was measured by dual-energy X-ray absorptiometry (DXA) at the lumbar spine and mean BMD measurements from at least 3 evaluable lumbar spine vertebrae (L1-L4) were used. If a vertebra was fractured at baseline or became fractured during the study, its BMD measurement was excluded from the analysis and the lumbar spine BMD was recalculated based on the three remaining vertebrae. aBMD data was centrally evaluated and all areal BMD measurements included a longitudinal BMD correction factor as determined by the quality control center. aBMD at the lumbar spine was assessed at the Screening visit (Baseline), Month 6, Month 12, and Month 24 for the repeated measures longitudinal Analysis of Covariates (ANCOVA) model, with percent change from baseline at Months 12 and 24 pre-specified to be reported as primary and secondary outcome measures, respectively.
Percentage of Participants That Experienced an Adverse Event (AE)
Time frame: Up to ~14 days post study end (up to ~24 months)
An AE was defined as any unfavorable and unintended change in the structure, function, or chemistry of the body temporally associated with the use of the SPONSOR's products, whether or not considered related to the use of the product. Any worsening (i.e., any clinically significant adverse change in frequency and/or intensity) of a preexisting condition which is temporally associated with the use of the SPONSOR's product was also an AE. The percentage of participants that experienced at least one AE was reported for each treatment arm.
Percentage of Participants That Discontinued Study Treatment Due to an AE
Time frame: Up to ~14 days post study end (up to ~24 months)
An AE was defined as any unfavorable and unintended change in the structure, function, or chemistry of the body temporally associated with the use of the SPONSOR's products, whether or not considered related to the use of the product. Any worsening (i.e., any clinically significant adverse change in frequency and/or intensity) of a preexisting condition which is temporally associated with the use of the SPONSOR's product was also an AE. The percentage of participants that discontinued study treatment (different from discontinuation of the study) due to an AE was reported for each treatment arm.
11 secondary outcomes
Percent Change From Baseline to Month 24 in Lumbar Spine aBMD
Time frame: Baseline, 24 months
Percent Change From Baseline in Total Hip aBMD
Time frame: Baseline, 12 months, 24 months
Percent Change From Baseline in Femoral Neck aBMD
Time frame: Baseline, 12 months, 24 months
Percent Change From Baseline in Hip Trochanter aBMD
Time frame: Baseline, 12 months, 24 months
Percent Change From Baseline in Total Radius aBMD
Time frame: Baseline, 12 months, 24 months
Percent Change From Baseline in Ultradistal Radius aBMD
Time frame: Baseline, 12 months, 24 months
Percent Change From Baseline in Distal Radius aBMD
Time frame: Baseline, 12 months, 24 months
Percent Change From Baseline in Trabecular Volumetric Bone Mineral Density (vBMD) at Central Section of Spine (L1)
Time frame: Baseline, 12 months, 24 months
Percent Change From Baseline in Trabecular vBMD at Central Section of Spine (L2)
Time frame: Baseline, 12 months, 24 months
Percent Change From Baseline in Serum C-Terminal Telopeptides of Type 1 Collagen (s-CTx) Level
Time frame: Baseline, 12 months, 24 months
Percent Change From Baseline in Serum N-Terminal Propeptides of Type 1 Collagen (s-P1NP) Level
Time frame: Baseline, 12 months, 24 months
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 27 Aug 2018.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
- Derived from this study: PubMed 24898537Engelke K, Fuerst T, Dardzinski B, Kornak J, Ather S, Genant HK, de Papp A. Odanacatib treatment affects trabecular and cortical bone in the femur of postmenopausal women: results of a two-year placebo-controlled trial. J Bone Miner Res. 2015 Jan;30(1):30-8. doi: 10.1002/jbmr.2292.
- Derived from this study: PubMed 23337728Brixen K, Chapurlat R, Cheung AM, Keaveny TM, Fuerst T, Engelke K, Recker R, Dardzinski B, Verbruggen N, Ather S, Rosenberg E, de Papp AE. Bone density, turnover, and estimated strength in postmenopausal women treated with odanacatib: a randomized trial. J Clin Endocrinol Metab. 2013 Feb;98(2):571-80. doi: 10.1210/jc.2012-2972. Epub 2013 Jan 21.
- Individual participant dataSharing planned: Yes. https://www.merck.com/clinical-trials/pdf/ProcedureAccessClinicalTrialData.pdf
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Medical Monitor study director
Merck Sharp & Dohme LLC
Questions about this trial
What is this clinical trial studying?
A Phase 3 study testing Odanacatib, Vitamin D3 and Calcium supplement in people with Osteoporosis, run by Merck Sharp & Dohme LLC.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 4 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 27 Aug 2018. Status can change between updates, so confirm with the study contact before making plans.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
Yes. Results are posted in the registry (first posted 16 May 2017). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Percent Change From Baseline to Month 12 in Lumbar Spine Areal Bone Mineral Density (aBMD) (time frame: Baseline, 12 months). The study lists 3 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT00729183, which also lists 2 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 27 Aug 2018; AzTrials last refreshed its copy on 6 Nov 2026.