Effect of Physical Activity in Women With Manifest Osteporosis

Not Applicable

Withdrawn

• Conditions: Osteoporosis

• Registration Number: NCT04768712
• Lead Sponsor: Sahlgrenska University Hospital, Sweden

Brief Summary

Objectives: To investigate if a physical activity intervention (one year) can reduce the risk of falls (primary endpoint), improve physical function (balance and muscle strength) and cortical bone geometry as well as trabecular microarchitecture (secondary endpoints) in women, 70-80 years old, with manifest osteoporosis, treated with zoledronic acid, calcium and vitamin D.

Strategic goal: To include 200 patients (100 intervention and 100 controls) during 2010 and 2011 and randomize 100 patients to a one year physical activity intervention (3 hours weekly). The results will be published in an international scientific peer-review journal. All patients will receive standard medical treatment with calcium, vitamin D and yearly zoledronic acid.

Study rationale: The role of physical activity intervention has not previously been evaluated in patients with manifest osteoporosis and zoledronic acid treatment.

Methodology: Randomized controlled trial. All included patients (women 70-80 years of age) will have manifest osteoporosis, be treatment naïve, and will be treated on clinical indication with yearly infusions of zoledronic acid (approved treatment, for this patient category, by the Swedish Medical Products Agency). Patients with secondary osteoporosis, with disabilities, and with high levels of exercise at the baseline visit will be excluded. Intention to treat analysis will be used. Physical activity intervention includes 3 hours of weight bearing aerobic exercise per week, using a standardized program. Patients in both groups will be contacted monthly and asked about their exercise habits. Frequency of falls, physical activity level will be ascertained using questionnaires. Balance and muscle strength will be assessed using standardized tests. Bone geometry at the tibia diaphysis will be determined using an XCT2000 pQCT device (Stratec, Germany) and trabecular microarchitecture at the tibia metaphysis will be determined using an XtremeCT device (Scanco Medical AG, Switzerland). These examinations will be performed on all patients prior to the intervention and after the completion of the study.

Detailed Description

Not available

Study Timeline

• Study Start: 2012-06-10
• Primary Completion: 2012-06-10
• Study Completion: 2012-06-10
• Status Verified: 2021-02
• Study First Submitted: 2021-02-12
• Study First Submitted QC: 2021-02-23
• Last Update Submitted: 2021-02-23
• Study First Posted: 2021-02-24
• Last Update Posted: 2021-02-24

Recruitment & Eligibility

• Status: WITHDRAWN
• Sex: Female
• Target Recruitment: Not specified

Inclusion Criteria

• 70-80 years of age
• manifest osteoporosis, BMD T-score ≤2.5 SD at the lumbar spine and/or hip
• female
• walk without walking aid

Exclusion Criteria

• male
• high level of exercise, ≥2 times/week, at baseline
• secondary osteoporosis
• previous treatment with bisphosphonate or other osteoporosis induced medicine

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Primary Outcome Measures

Name	Time	Method
Propensity to fall	Through study completion, an average of 1 year	Frequency of falls during time of intervention.

Secondary Outcome Measures

Name	Time	Method
Physical function (Balance and muscle strength)	Prior to the intervention and after the completion (an average of 1 year) of the study
Trabecular microarchitecture	Prior to the intervention and after the completion (an average of 1 year) of the study
Cortical bone geometry	Prior to the intervention and after the completion (an average of 1 year) of the study