The purpose of this study is to evaluate the efficacy and safety of eldecalcitol monotherapy compared with alfacalcidol monotherapy in patients with glucocorticoid-induced osteoporosis, using a randomized, open-label, parallel-group, comparative design.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
400
Eldecalcitol 0.75 microgram once daily orally
Alfacalcidol 1 microgram once daily orally
Nara Hospital Kinki University Faculty of Medicine
Ikoma, Nara, Japan
RECRUITINGPercent change in lumbar spine (L1-4) bone mineral density
Time frame: 12 months after the start of study drug administration
Incidence of vertebral fractures
A vertebral fracture will be classified as a new fracture (i.e., change from grade 0 to grade 1, 2, or 3) or worsening of a prevalent fracture (i.e., change from grade 1 to grade 2 or 3, or change from grade 2 to grade 3) using a semi-quantitative \[SQ\] method according to the "Vertebral Fracture Assessment Criteria, 2012 revised version."
Time frame: 36 months
Incidence of non-vertebral fractures (both traumatic and non-traumatic; All sites)
Time frame: 36 months
Incidence of non-vertebral fractures (both traumatic and non-traumatic; 3 Major sites)
The 3 Major sites are defined as the forearm, humerus, and femur.
Time frame: 36 months
Incidence of non-vertebral fractures (both traumatic and non-traumatic; 6 Major sites)
The 6 Major sites are defined as the femur, lower leg, humerus, forearm, clavicle, and pelvis.
Time frame: 36 months
Incidence of non-vertebral fractures (traumatic; All sites)
Time frame: 36 months
Incidence of non-vertebral fractures (traumatic; 3 Major sites)
Time frame: 36 months
Incidence of non-vertebral fractures (traumatic; 6 Major sites)
Time frame: 36 months
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Incidence of non-vertebral fractures (non-traumatic; All sites)
Time frame: 36 months
Incidence of non-vertebral fractures (non-traumatic; 3 Major sites)
Time frame: 36 months
Incidence of non-vertebral fractures (non-traumatic; 6 Major sites)
Time frame: 36 months
Incidence of vertebral fractures (new vertebral fractures)
Time frame: 36 months
Incidence of vertebral fractures (worsening of prevalent vertebral fractures)
Time frame: 36 months
Incidence of vertebral fractures (clinical vertebral fractures)
Time frame: 36 months
Incidence of vertebral fracture (new or worsening of prevalent fractures) by glucocorticoid dose
Time frame: 36 months
Incidence of clinical vertebral fractures by glucocorticoid dose
Time frame: 36 months
Incidence of non-vertebral fractures (all sites) by glucocorticoid dose
Time frame: 36 months
Incidence of non-vertebral fractures (3 Major sites) by glucocorticoid dose
Time frame: 36 months
Incidence of non-vertebral fractures (6 Major sites) by glucocorticoid dose
Time frame: 36 months
Incidence of vertebral fractures (new or worsening) by bone mineral density
Time frame: 36 months
Incidence of clinical vertebral fractures by bone mineral density
Time frame: 36 months
Incidence of non-vertebral fractures (all sites) by bone mineral density
Time frame: 36 months
Incidence of non-vertebral fractures (3 Major sites) by bone mineral density
Time frame: 36 months
Incidence of non-vertebral fractures (6 Major sites) by bone mineral density
Time frame: 36 months
Incidence of vertebral fractures (new or worsening) by number of prevalent fractures
Time frame: 36 months
Incidence of clinical vertebral fractures by number of prevalent fractures
Time frame: 36 months
Incidence of non-vertebral fractures (all sites) by number of prevalent fractures
Time frame: 36 months
Incidence of non-vertebral fractures (3 Major sites) by number of prevalent fractures
Time frame: 36 months
Incidence of non-vertebral fractures (6 Major sites) by number of prevalent fractures
Time frame: 36 months
Incidence of new vertebral fractures by severity
Semiquantitative (SQ) method is used for grading of vertebral fractures.
Time frame: 36 months
Incidence of new clinical vertebral fractures by severity
SQ method is used for grading of vertebral fractures.
Time frame: 36 months
Incidence of new non-vertebral fractures (all sites) by severity
SQ method is used for grading of vertebral fractures.
Time frame: 36 months
Incidence of new non-vertebral fractures (3 Major sites) by severity
SQ method is used for grading of vertebral fractures.
Time frame: 36 months
Incidence of new non-vertebral fractures (6 Major sites) by severity
Time frame: 36 months
Incidence of osteoporotic fractures
An osteoporotic fracture is defined as a fracture of the following sites: vertebral body, ribs, pelvis, humerus, clavicle, scapula, sternum, proximal femur, other portions of the femur, tibia, fibula, and forearm.
Time frame: 36 months
Incidence of FRAX-defined major osteoporotic fractures
The 4 Major sites are defined as clinical fractures of the spine, forearm, hip, and shoulder.
Time frame: 36 months
Percent change in lumbar spine bone mineral density
Time frame: 6 months after the start of study drug administration
Percent change in lumbar spine bone mineral density
Time frame: 24 months after the start of study drug administration
Percent change in lumbar spine bone mineral density
Time frame: 36 months after the start of study drug administration (or at the time of withdrawal from the study)
Change in proximal femur (total-hip) bone mineral density
Time frame: 6 months after the start of study drug administration
Change in proximal femur (total-hip) bone mineral density
Time frame: 12 months after the start of study drug administration
Change in proximal femur (total-hip) bone mineral density
Time frame: 24 months after the start of study drug administration
Change in proximal femur (total-hip) bone mineral density
Time frame: 36 months after the start of study drug administration (or at the time of withdrawal from the study)
Percent change in TRACP-5b bone metabolism marker
Time frame: 6 months after the start of study drug administration
Percent change in TRACP-5b bone metabolism marker
Time frame: 12 months after the start of study drug administration
Percent change in PINP bone metabolism marker
Time frame: 6 months after the start of study drug administration
Percent change in PINP bone metabolism marker
Time frame: 12 months after the start of study drug administration
Frequency of falls
Time frame: 36 months
Change in muscle strength (back muscle strength)
Time frame: 12 months after the start of study drug administration
Change in muscle strength (back muscle strength)
Time frame: 24 months after the start of study drug administration
Change in muscle strength (back muscle strength)
Time frame: 36 months after the start of study drug administration (or at the time of withdrawal from the study)
Change in muscle strength (grip strength)
Time frame: 12 months after the start of study drug administration
Change in muscle strength (grip strength)
Time frame: 24 months after the start of study drug administration
Change in muscle strength (grip strength)
Time frame: 36 months after the start of study drug administration (or at the time of withdrawal from the study)
Change in height
Time frame: 12 months after the start of study drug administration
Change in height
Time frame: 24 months after the start of study drug administration
Change in height
Time frame: 36 months after the start of study drug administration (or at the time of withdrawal from the study)