A Study of Adherence to Once Monthly Ibandronate (Bonviva) in Women With Post-Menopausal Osteoporosis, Supported by a Patient Relationship Program (PRP)

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• Osteoporosis 1,640
• Osteoporosis, Postmenopausal 325

Osteoporosis

1,640 studies on the registry are indexed under Osteoporosis; 212 are open to participants now.

This study's enrollment of 716 is above the median of 95 across 1,133 interventional studies indexed under Osteoporosis.

Lead sponsor

Hoffmann-La Roche is the lead sponsor of 2,061 studies on the registry; 85 are open to participants now.

Of its 319 completed or terminated interventional studies of FDA-regulated products, 239 (75%) have results posted.

Study arms

• Experimental
  Bone Marker Feedback (BMF) Participants

  Postmenopausal women will receive ibandronate 150 milligrams (mg) once monthly (QM) orally for 6 months. Participants, in this arm, will receive BMF at Month 3. BMF will be given in terms of providing serum carboxy-terminal collagen crosslinks (CTX) level at Month 3. A "BMF-form" will be provided to the physicians to allow offering the bone marker result in an easy way. Participants will be informed if their results are within or outside of the desired range. In addition, participants will also supported by PRP, to be carried out by supplying alarm devices, specifically designed to support the participant's regular drug intake.

  Drug: Ibandronate

• Active comparator
  No BMF Participants

  Postmenopausal women will receive ibandronate 150 milligrams (mg) once monthly (QM) orally for 6 months. Participants will be supported by PRP, to be carried out by supplying alarm devices, specifically designed to support the participant's regular drug intake.

  Drug: Ibandronate

Interventions

• DrugIbandronate

  Participants will receive ibandronate 150 mg QM orally for 6 months.

  Also known as: Bonviva, Boniva

Primary outcomes

1. Percentage of Participants With Adherence to Treatment

   Participants were considered adherent to treatment if they took at least 83 percent (%) of their assigned medications (5 of the 6 monthly ibandronate tablets) within the -1 to +21 days of their osteoporosis treatment date each month. Participant adherence was assessed by maintaining records of 'drug dispensed' and 'drug returned' on case report form (CRF) and participant's self-report on Visit 2 (Month 3) and final study visit (Month 6). A drug dispensing log was maintained by the investigator. Participants were instructed at the baseline visit and Visit 2 to save and return unused or partially used medication packages on Visit 2 and final study visit, respectively.

   Time frame: Up to 6 months

Secondary outcomes

1. Percentage of Participants With Osteoporosis Patient Satisfaction Questionnaire (OPSAT-Q) Composite Satisfaction High Scores

   The OPSAT-Q is a validated questionnaire designed to capture satisfaction with bisphosphonate treatment. It comprises four domains: convenience (questions 1 - 6), quality of life (questions 7 and 8), overall satisfaction (questions 9 and 10), and side effects (questions 11 - 16). Satisfaction with treatment was assessed using the OPSAT-Q composite satisfaction score, which was the average of the scores from the four domains of the OPSAT-Q converted to a 0 - 100-point scale. Higher scores indicated greater treatment satisfaction. A score of 80 or more was considered as high score.

   Time frame: At Month 6

2. Percentage of Participants With Osteoporosis Patient Perception Survey (OPPS) and Osteoporosis Medical Care Satisfaction Questionnaire (OMSQ) Composite Satisfaction High Score

   OPPS: A standardized 6-item satisfaction questionnaire for osteoporosis medical care and treatment received during the study. Individual item score was transformed and converted to a 0 to 100 scale where higher score indicated greater satisfaction. The composite score was the average of individual item scores (transformed) and ranged from 0 to 100, where higher scores indicated greater satisfaction. OMSQ: A standardized 18-item satisfaction questionnaire for osteoporosis medical care, treatment received and blood test and their results during the study. Individual item score was transformed and converted to a 0 to 100 scale where higher score indicated greater satisfaction. The composite score was the average of individual item scores (transformed) and ranged from 0 to 100, where higher scores indicated greater satisfaction.

   Time frame: At Month 6

3. Percent Change From Baseline in CTX Based on Adherence to Ibandronate

   Serum CTX, a biochemical marker of bone resorption, was assessed for all participants at baseline and at final visit (Month 6). The sampling was done at the same time of the day each time to overcome the effect of circadian fluctuations. Participants were considered adherent to treatment if they took at least 83% of their assigned medications (5 of the 6 monthly ibandronate tablets) within the -1 to +21 days of their osteoporosis treatment date each month. Participant adherence was assessed by maintaining records of 'drug dispensed' and 'drug returned' on CRF and participant's self-report on Visit 2 (Month 3) and final study visit (Month 6). A drug dispensing log was maintained by the investigator. Participants were instructed at the baseline visit and Visit 2 to save and return unused or partially used medication packages on Visit 2 and final study visit, respectively.

   Time frame: Baseline, Month 6

Baseline characteristics