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Denosumab Adherence Preference Satisfaction Study

1. Dezember 2019 aktualisiert von: Amgen

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).

Studienübersicht

Status

Abgeschlossen

Bedingungen

Intervention / Behandlung

Studientyp

Interventionell

Einschreibung (Tatsächlich)

250

Phase

  • Phase 3

Teilnahmekriterien

Forscher suchen nach Personen, die einer bestimmten Beschreibung entsprechen, die als Auswahlkriterien bezeichnet werden. Einige Beispiele für diese Kriterien sind der allgemeine Gesundheitszustand einer Person oder frühere Behandlungen.

Zulassungskriterien

Studienberechtigtes Alter

55 Jahre und älter (Erwachsene, Älterer Erwachsener)

Akzeptiert gesunde Freiwillige

Nein

Studienberechtigte Geschlechter

Weiblich

Beschreibung

Inclusion Criteria:

  • 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.

Exclusion Criteria:

  • 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
  • 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:

    1. Abnormalities of the esophagus, which delay esophageal emptying such as stricture or achalasia.
    2. Inability to stand or sit upright for at least 30 minutes.
    3. 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).

Studienplan

Dieser Abschnitt enthält Einzelheiten zum Studienplan, einschließlich des Studiendesigns und der Messung der Studieninhalte.

Wie ist die Studie aufgebaut?

Designdetails

  • Hauptzweck: Behandlung
  • Zuteilung: Zufällig
  • Interventionsmodell: Crossover-Aufgabe
  • Maskierung: Keine (Offenes Etikett)

Waffen und Interventionen

Teilnehmergruppe / Arm
Intervention / Behandlung
Sonstiges: Treatment Sequence B
When 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).
Arzneimittel: alendronate
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.
Arzneimittel: denosumab
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.
Sonstiges: Treatment Sequence A
When 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).
Arzneimittel: alendronate
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.
Arzneimittel: denosumab
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.

Was misst die Studie?

Primäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Adherence With Treatment in the First Treatment Period
Zeitfenster: Treatment period 1 (Month 1 to Month 12)
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.
Treatment period 1 (Month 1 to Month 12)

Sekundäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Adherence With Treatment in the Second Treatment Period
Zeitfenster: Treatment period 2 (Months 13 to 24)
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.
Treatment period 2 (Months 13 to 24)
Compliance With Treatment in the First Treatment Period
Zeitfenster: Treatment period 1 (Month 1 to Month 12)
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).
Treatment period 1 (Month 1 to Month 12)
Compliance With Treatment in the Second Treatment Period
Zeitfenster: Treatment period 2 (Month 13 to Month 24)
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).
Treatment period 2 (Month 13 to Month 24)
Persistence With Treatment in the First Treatment Period
Zeitfenster: Treatment period 1 (Month 1 to Month 12)
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.
Treatment period 1 (Month 1 to Month 12)
Persistence With Treatment in the Second Treatment Period
Zeitfenster: Treatment period 2 (Month 13 to Month 24)
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.
Treatment period 2 (Month 13 to Month 24)
Time to Non-adherence to Alendronate Treatment in the First Treatment Period
Zeitfenster: Treatment Period 1 (Month 1 to Month 12)
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.
Treatment Period 1 (Month 1 to Month 12)
Time to Non-adherence to Alendronate Treatment in the Second Treatment Period
Zeitfenster: Treatment Period 2 (Month 13 to Month 24)
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.
Treatment Period 2 (Month 13 to Month 24)
Time to Non-compliance to Alendronate Treatment in the First Treatment Period
Zeitfenster: Treatment period 1 (Month 1 to Month 12)
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.
Treatment period 1 (Month 1 to Month 12)
Time to Non-compliance to Alendronate Treatment in the Second Treatment Period
Zeitfenster: Treatment period 2 (Month 13 to Month 24)
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.
Treatment period 2 (Month 13 to Month 24)
Time to Non-persistence to Alendronate Treatment in the First Treatment Period
Zeitfenster: Treatment period 1 (Month 1 to Month 12)
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.
Treatment period 1 (Month 1 to Month 12)
Time to Non-persistence to Alendronate Treatment in the Second Treatment Period
Zeitfenster: Treatment period 2 (Month 13 to Month 24)
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.
Treatment period 2 (Month 13 to Month 24)
Overall Satisfaction to Study Treatment
Zeitfenster: End of treatment period 1 (Month 12)
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".
End of treatment period 1 (Month 12)
Beliefs About Medicines Questionnaire (BMQ): Necessity Score
Zeitfenster: Baseline, Month 6, Month 12, Month 18 and Month 24

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.
Baseline, Month 6, Month 12, Month 18 and Month 24
Beliefs About Medicines Questionnaire (BMQ) Concern Score
Zeitfenster: Baseline and Month 6, Month 12, Month 18, and Month 24
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.
Baseline and Month 6, Month 12, Month 18, and Month 24
Beliefs About Medicines Questionnaire (BMQ) Preference Score
Zeitfenster: Baseline and Month 6, Month 12, Month 18, and Month 24
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.
Baseline and Month 6, Month 12, Month 18, and Month 24
Medication Adherence Rating Scale (MARS) to Alendronate in the First Treatment Period
Zeitfenster: Month 6, Month 12 (treatment period 1)
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.
Month 6, Month 12 (treatment period 1)
Medication Adherence Rating Scale (MARS) to Alendronate in the Second Treatment Period
Zeitfenster: Month 18, Month 24 (treatment period 2)
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.
Month 18, Month 24 (treatment period 2)

Mitarbeiter und Ermittler

Hier finden Sie Personen und Organisationen, die an dieser Studie beteiligt sind.

Sponsor

Amgen

Publikationen und hilfreiche Links

Die Bereitstellung dieser Publikationen erfolgt freiwillig durch die für die Eingabe von Informationen über die Studie verantwortliche Person. Diese können sich auf alles beziehen, was mit dem Studium zu tun hat.

Allgemeine Veröffentlichungen

Nützliche Links

Studienaufzeichnungsdaten

Diese Daten verfolgen den Fortschritt der Übermittlung von Studienaufzeichnungen und zusammenfassenden Ergebnissen an ClinicalTrials.gov. Studienaufzeichnungen und gemeldete Ergebnisse werden von der National Library of Medicine (NLM) überprüft, um sicherzustellen, dass sie bestimmten Qualitätskontrollstandards entsprechen, bevor sie auf der öffentlichen Website veröffentlicht werden.

Haupttermine studieren

Studienbeginn (Tatsächlich)

1. September 2007

Primärer Abschluss (Tatsächlich)

1. Juni 2009

Studienabschluss (Tatsächlich)

1. Juni 2010

Studienanmeldedaten

Zuerst eingereicht

16. August 2007

Zuerst eingereicht, das die QC-Kriterien erfüllt hat

16. August 2007

Zuerst gepostet (Schätzen)

20. August 2007

Studienaufzeichnungsaktualisierungen

Letztes Update gepostet (Tatsächlich)

3. Dezember 2019

Letztes eingereichtes Update, das die QC-Kriterien erfüllt

1. Dezember 2019

Zuletzt verifiziert

1. Dezember 2019

Mehr Informationen

Begriffe im Zusammenhang mit dieser Studie

Schlüsselwörter

Zusätzliche relevante MeSH-Bedingungen

Andere Studien-ID-Nummern

  • 20060232
  • DAPS

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