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OsteoporosisPhase 3NCT00518531

Denosumab Adherence Preference Satisfaction Study

A Phase 3 study testing alendronate and denosumab in people with Osteoporosis, run by Amgen.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The primary objective is to evaluate the adherence of subjects to subcutaneous (SC) 60 mg denosumab every 6 months (Q6M) treatment compared to oral 70 mg alendronate once a week (QW) treatment at the end of treatment period 1 (12 months). Read more about this study

Who is it for?
Ages 55 years and older, women only
Conditions the study is for
Osteoporosis
What is being tested?
alendronate and denosumab
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
250 participants
Where
No sites listed yet
Study dates
1 Sep 2007to 1 Jun 2010
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 55 years and older
  • Women only
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Ambulatory postmenopausal women based on medical history
  • > or = 55 years of age at the start of screening
  • Screening bone mineral density (BMD) values (g/cm²), at the lumbar spine OR femoral neck OR total hip that occur within the specified ranges based on the particular scanner that is used. At least 2 lumbar vertebrae must be evaluable by Dual X-ray Absorptiometry (DXA), or at least one hip must be evaluable by DXA
  • Provide written informed consent before any study specific procedure is performed.

Who cannot join

  • Any disorder that compromises the ability of the subject to give written informed consent and/or to comply with study procedures
  • Hyper- or hypothyroidism; however, stable subjects, in the investigator's opinion, on thyroid hormone replacement therapy are allowed
  • Current hyper- or hypoparathyroidism
  • Current hypo- or hyper calcemia based on the central laboratory reference ranges for albumin-adjusted serum calcium
  • Rheumatoid arthritis, Paget's disease, Cushing's disease, hyperprolactinemia, or cirrhosis of the liver
  • Any metabolic bone disease, e.g. osteomalacia or osteogenesis imperfecta, which may interfere with the interpretation of the findings
Show all 15Show fewer
  • Any symptomatic vertebral fracture within 3 months prior to screening
  • Previous participation in clinical trials with denosumab
  • Vitamin D deficiency [25(OH) vitamin D level < 20 ng/mL (<49.9 nmol/L)]
  • Contraindicated to alendronate therapy; contraindications for alendronate therapy include:
  • Abnormalities of the esophagus, which delay esophageal emptying such as stricture or achalasia.
  • Inability to stand or sit upright for at least 30 minutes.
  • Hypersensitivity to alendronate (ALN) or other constituents of ALN tablets.
  • Any known prior bisphosphonate use
  • Currently enrolled in or has not yet completed at least 1 month since ending other investigational device or drug trail (s), or subject is receiving other investigational agent(s).

About this study

Official title: A Multicenter, Randomized, Cross-Over, Open-label Study to Evaluate the Adherence, Preference, and Satisfaction of Denosumab and Alendronate in Postmenopausal Women With Low Bone Mineral Density

The primary objective is to evaluate the adherence of subjects to subcutaneous (SC) 60 mg denosumab every 6 months (Q6M) treatment compared to oral 70 mg alendronate once a week (QW) treatment at the end of treatment period 1 (12 months).

Conditions
Osteoporosis
Being tested
alendronate, denosumab
Keywords
osteoporosis, low bone mineral density, alendronate, denosumab, adherence, preference, satisfaction, postmenopausal, women
Medical subject headings
Osteoporosis, Bone Diseases, Metabolic, Personal Satisfaction

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • alendronateDrug

    Subjects will take 70 mg QW of oral alendronate for 1 year. If a subject is randomized to Treatment Sequence A they will receive alendronate for 1 year in Treatment Period 2. If a subject is randomized to Treatment Sequence B they will receive alendronate for 1 year in Treatment Period 1.

  • denosumabDrug

    Subjects will receive 60 mg of denosumab Q6M SC for 1 year. If a subject is randomized to Treatment Sequence A they will receive denosumab for 1 year in Treatment Period 2. If a subject is randomized to Treatment Sequence B they will receive denosumab for 1 year in Treatment Period 1.

Study groups in NCT00518531
Study groupRoleWhat they receive
Treatment Sequence BOtherWhen a subject meets all eligibility criteria and signs the informed consent, they will be randomized in a 1:1 allocation to one of the two treatment Sequences. Subjects randomized to treatment sequence B will receive 70 mg oral alendronate QW for 1-year (Treatment period 1) followed by denosumab 60 mg Q6M SC for 1 year (Treatment Period 2).
Receives: Drug: alendronate; Drug: denosumab
Treatment Sequence AOtherWhen a subject meets all eligibility criteria and signs the informed consent, they will be randomized in a 1:1 allocation to one of the two treatment sequences. Subjects randomized to treatment sequence A will receive 60 mg denosumab Q6M SC for 1-year (Treatment period 1) followed by oral alendronate 70 mg QW for 1 year (Treatment period 2).
Receives: Drug: alendronate; Drug: denosumab

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Adherence With Treatment in the First Treatment Period

    A participant was considered adherent to denosumab treatment if the participant: - received 2 denosumab injections (overall treatment compliance); - took each injection 6 months (± 4 weeks) apart (treatment compliance over time); - completed the relevant treatment period (treatment persistence). A participant was considered adherent to alendronate treatment if the participant: - took ≥ 80% QW tablets (overall treatment compliance); - took at least 2 tablets in the last month and completed the relevant treatment period (treatment persistence). Participants who did not meet all criteria for their assigned treatment were deemed non-adherent to treatment.

    Measured: Treatment period 1 (Month 1 to Month 12)

Secondary outcomes (17)
  1. Adherence With Treatment in the Second Treatment Period

    A participant was considered adherent to denosumab treatment if the participant: - received 2 denosumab injections (overall treatment compliance); - took each injection 6 months (± 4 weeks) apart (treatment compliance over time); - completed the relevant treatment period (treatment persistence). A participant was considered adherent to alendronate treatment if the participant: - took ≥ 80% QW tablets (overall treatment compliance); - took at least 2 tablets in the last month and completed the relevant treatment period (treatment persistence). Participants who did not meet all criteria for their assigned treatment were deemed nonadherent to treatment.

    Measured: Treatment period 2 (Months 13 to 24)

  2. Compliance With Treatment in the First Treatment Period

    Participants were considered compliant to denosumab treatment if they received 2 denosumab injections (overall treatment compliance) and if they took each injection 6 months (± 4 weeks) apart (treatment compliance over time). Participants were considered compliant to alendronate treatment if they took ≥ 80% QW tablets (overall treatment compliance).

    Measured: Treatment period 1 (Month 1 to Month 12)

  3. Compliance With Treatment in the Second Treatment Period

    Participants were considered compliant to denosumab treatment if they received 2 denosumab injections (overall treatment compliance) and if they took each injection 6 months (± 4 weeks) apart (treatment compliance over time). Participants were considered compliant to alendronate treatment if they took ≥ 80% QW tablets (overall treatment compliance).

    Measured: Treatment period 2 (Month 13 to Month 24)

  4. Persistence With Treatment in the First Treatment Period

    Denosumab-treated participants were considered persistent to treatment if they completed the relevant treatment period and alendronate-treated participants were considered persistent to treatment if they completed the relevant treatment period and took at least 2 tablets in the last month of the treatment period.

    Measured: Treatment period 1 (Month 1 to Month 12)

  5. Persistence With Treatment in the Second Treatment Period

    Denosumab-treated participants were considered persistent to treatment if they completed the relevant treatment period and alendronate-treated participants were considered persistent to treatment if they completed the relevant treatment period and took at least 2 tablets in the last month of the treatment period.

    Measured: Treatment period 2 (Month 13 to Month 24)

  6. Time to Non-adherence to Alendronate Treatment in the First Treatment Period

    Time to treatment non-adherence for alendronate is defined for each treatment period as the time to treatment non-compliance or time to treatment non-persistence, whichever occurs earliest, for participants with uncensored values. Participants who had both censored time to non-compliance and censored time to non-persistence values were censored in the analysis at the end of treatment period visit.

    Measured: Treatment Period 1 (Month 1 to Month 12)

  7. Time to Non-adherence to Alendronate Treatment in the Second Treatment Period

    Time to treatment non-adherence for alendronate is defined for each treatment period as the time to treatment non-compliance or time to treatment non-persistence, whichever occurs earliest, for participants with uncensored values. Participants who had both censored time to non-compliance and censored time to non-persistence values were censored in the analysis at the end of treatment period visit.

    Measured: Treatment Period 2 (Month 13 to Month 24)

  8. Time to Non-compliance to Alendronate Treatment in the First Treatment Period

    Time to treatment non-compliance for alendronate is based on the percent of QW tablets taken and is defined for each treatment period as the first week since Study Day 1 of the treatment period to the week where the percent of QW tablets taken falls below the threshold of ≥ 80% and where the participant can not reach this threshold again during the treatment period.

    Measured: Treatment period 1 (Month 1 to Month 12)

  9. Time to Non-compliance to Alendronate Treatment in the Second Treatment Period

    Time to treatment non-compliance for alendronate is based on the percent of QW tablets taken and is defined for each treatment period as the first week since Study Day 1 of the treatment period to the week where the percent of QW tablets taken falls below the threshold of ≥ 80% and where the participant can not reach this threshold again during the treatment period.

    Measured: Treatment period 2 (Month 13 to Month 24)

  10. Time to Non-persistence to Alendronate Treatment in the First Treatment Period

    Time to non-persistence for alendronate is defined for each treatment period as the first time <2 tablets were taken in a rolling 4-week time period (e.g. study weeks 1-4, 2-5, 3-6 etc) and where the participant never reaches this threshold again during the treatment period. Tablet intake was tracked using a Medication Event Monitoring System.

    Measured: Treatment period 1 (Month 1 to Month 12)

  11. Time to Non-persistence to Alendronate Treatment in the Second Treatment Period

    Time to non-persistence for alendronate is defined for each treatment period as the first time <2 tablets were taken in a rolling 4-week time period (e.g. study weeks 1-4, 2-5, 3-6 etc) and where the participant never reaches this threshold again during the treatment period. Tablet intake was tracked using a Medication Event Monitoring System.

    Measured: Treatment period 2 (Month 13 to Month 24)

  12. Overall Satisfaction to Study Treatment

    Participant satisfaction with their treatment was assessed using question 7 (ie, "Please rate your satisfaction with the weekly pill on the following: frequency of administration; mode of administration [taking a pill]; convenience; overall satisfaction") and question 8 (ie, "Please rate your satisfaction with the six month injection on the following: frequency of administration; mode of administration [receiving an injection]; convenience; overall satisfaction") from the Preference Satisfaction Questionnaire (PSQ) at the end of each treatment period. The PSQ is a 34 item, self-report questionnaire of participants' preference and satisfaction for each of the two study treatments. Possible answers include: "Not at all Satisfied", "A Little Satisfied", "Moderately Satisfied", "Quite Satisfied", and "Very Satisfied".

    Measured: End of treatment period 1 (Month 12)

  13. Beliefs About Medicines Questionnaire (BMQ): Necessity Score

    The BMQ is a 22- item self-reported questionnaire specific to osteoporosis that measures beliefs about the weekly pill or every 6 months injection. The BMQ consists of 3 subscales measuring beliefs about the necessity of the medication for controlling osteoporosis, concern with the adverse consequences of taking the medication, and preference for one medication over the other.

    Participants' beliefs about the necessity of the prescribed medication to treat osteoporosis were based on the average of 5 items from the BMQ that form the necessity score. The necessity score ranges from 1 to 5, with higher scores indicating stronger beliefs about the necessity of the prescribed medication for controlling osteoporosis.

    Measured: Baseline, Month 6, Month 12, Month 18 and Month 24

  14. Beliefs About Medicines Questionnaire (BMQ) Concern Score

    The BMQ is a 22- item self-reported questionnaire specific to osteoporosis that measures beliefs about the weekly pill or every 6 months injection. The BMQ consists of 3 subscales measuring beliefs about the necessity of the medication for controlling osteoporosis, concern with the adverse consequences of taking the medication, and preference for one medication over the other. Participants' concern about the adverse consequences of taking the medication for controlling osteoporosis was based on the average of 10 items from the BMQ that form the concern score. The concern score ranges from 1 to 5, with higher scores indicating stronger concerns about the adverse consequences of taking the prescribed medication for controlling osteoporosis.

    Measured: Baseline and Month 6, Month 12, Month 18, and Month 24

  15. Beliefs About Medicines Questionnaire (BMQ) Preference Score

    The BMQ is a 22- item self-reported questionnaire specific to osteoporosis that measures beliefs about the weekly pill or every 6 months injection. The BMQ consists of 3 subscales measuring beliefs about the necessity of the medication for controlling osteoporosis, concern with the adverse consequences of taking the medication, and preference for one medication over the other. The BMQ preference score, which measures a participant's overall evaluation of a medication, is based on the average of 7 items in the BMQ. The preference score ranges from 1 to 5, with higher scores indicating stronger preference for one medication over the other.

    Measured: Baseline and Month 6, Month 12, Month 18, and Month 24

  16. Medication Adherence Rating Scale (MARS) to Alendronate in the First Treatment Period

    The MARs questionnaire is a validated, self-reported instrument for assessing treatment adherence. Participants report how often they engage in each of 5 aspects of non-adherent behavior (forgetting to take a dose, changing the dose, stop taking them for a while, deciding to not take a dose, or taking less than instructed). Scores are summed over the 5 items, the total score ranges from 5 to 25 with higher scores indicating greater self-reported adherence. The MARS was collected at the month 6 and month 12 visits of each treatment period only for those participants receiving oral alendronate during that period.

    Measured: Month 6, Month 12 (treatment period 1)

  17. Medication Adherence Rating Scale (MARS) to Alendronate in the Second Treatment Period

    The MARs questionnaire is a validated, self-reported instrument for assessing treatment adherence. Participants report how often they engage in each of 5 aspects of non-adherent behavior (forgetting to take a dose, changing the dose, stop taking them for a while, deciding to not take a dose, or taking less than instructed). Scores are summed over the 5 items, the total score ranges from 5 to 25 with higher scores indicating greater self-reported adherence. The MARS was collected at the month 6 and month 12 visits of each treatment period only for those participants receiving oral alendronate during that period.

    Measured: Month 18, Month 24 (treatment period 2)

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted20 Aug 2007 (estimated)
  2. Study start1 Sep 2007
  3. Primary completion1 Jun 2009
  4. Study completion1 Jun 2010

Resources

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
Crossover
Masking
None (open label)
Enrolment
250 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00518531
Sponsor's protocol ID
20060232
Other IDs
DAPS
Status last verified
Dec 2019
First submitted
16 Aug 2007
Last updated
3 Dec 2019

Publications

  • Freemantle N, Satram-Hoang S, Tang ET, Kaur P, Macarios D, Siddhanti S, Borenstein J, Kendler DL; DAPS Investigators. Final results of the DAPS (Denosumab Adherence Preference Satisfaction) study: a 24-month, randomized, crossover comparison with alendronate in postmenopausal women. Osteoporos Int. 2012 Jan;23(1):317-26. doi: 10.1007/s00198-011-1780-1. Epub 2011 Sep 17.

    PubMed 21927922
  • Kendler DL, Macarios D, Lillestol MJ, Moffett A, Satram-Hoang S, Huang J, Kaur P, Tang ET, Wagman RB, Horne R. Influence of patient perceptions and preferences for osteoporosis medication on adherence behavior in the Denosumab Adherence Preference Satisfaction study. Menopause. 2014 Jan;21(1):25-32. doi: 10.1097/GME.0b013e31828f5e5d.

    PubMed 23676636
  • Kendler DL, McClung MR, Freemantle N, Lillestol M, Moffett AH, Borenstein J, Satram-Hoang S, Yang YC, Kaur P, Macarios D, Siddhanti S; DAPS Investigators. Adherence, preference, and satisfaction of postmenopausal women taking denosumab or alendronate. Osteoporos Int. 2011 Jun;22(6):1725-35. doi: 10.1007/s00198-010-1378-z. Epub 2010 Sep 9.

    PubMed 20827547
  • Kendler D, Chines A, Clark P, Ebeling PR, McClung M, Rhee Y, Huang S, Stad RK. Bone Mineral Density After Transitioning From Denosumab to Alendronate. J Clin Endocrinol Metab. 2020 Mar 1;105(3):e255-64. doi: 10.1210/clinem/dgz095.

    PubMed 31665314

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing alendronate and denosumab in people with Osteoporosis, run by Amgen.

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 15 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 3 Dec 2019. 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. 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 7 Jan 2014). 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?

Adherence With Treatment in the First Treatment Period (time frame: Treatment period 1 (Month 1 to Month 12)). 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 NCT00518531, which also lists 4 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 3 Dec 2019.

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