E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
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E.1.1.1 | Medical condition in easily understood language |
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E.1.1.2 | Therapeutic area | Diseases [C] - Musculoskeletal Diseases [C05] |
MedDRA Classification |
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 20.0 |
E.1.2 | Level | LLT |
E.1.2 | Classification code | 10031289 |
E.1.2 | Term | Osteoporosis, unspecified |
E.1.2 | System Organ Class | 100000004859 |
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E.1.3 | Condition being studied is a rare disease | No |
E.2 Objective of the trial |
E.2.1 | Main objective of the trial |
To investigate if infusion of zoledronic acid can prevent increases in bone turnover and bone loss in patients previously treated with denosumab and if there is difference between infusing zoledronic acid at six or nine months after the last injection with denosumab or when bone turnover is increased. |
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E.2.2 | Secondary objectives of the trial |
To investigate if infusion of zoledronic acid can prevent increases in bone turnover and bone loss in patients previously treated with denosumab and if there is difference between infusing zoledronic acid at six or nine months after the last injection with denosumab or when bone turnover is increased. |
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
Inclusion criteria • Postmenopausal women (postmenopausal for at least two years) • Men above 50 years • Treatment for at least two years with denosumab • Last denosumab injection less than five months ago
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E.4 | Principal exclusion criteria |
Exclusion criteria • Low-energy vertebral fracture at any time • Low-energy hip fracture within the last 12 months • BMD T-score < -2,5 (lumbar spine, total hip or femoral neck) • Alendronate treatment for more than three years prior to denosumab treatment • Ongoing treatment with glucocorticoids • Metabolic bone disease • Hormone replacement therapy • Cancer • Estimated glomerular filtration rate (eGFR) < 35 mL/min • Allergy to zoledronic acid • Hypocalcaemia • Contraindications for zoledronic acid according to the SPC |
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E.5 End points |
E.5.1 | Primary end point(s) |
Co-primary endpoint • Change in lumbar spine BMD from baseline to 6 months after the zoledronic acid infusion. • The proportion of patients who fails to maintain BMD (total hip, femoral neck and spine). Failure is defined as ≥ 3 % BMD loss at the lumbar spine or ≥ 5 % BMD loss at the femoral neck or total hip.
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
Co-primary endpoint • Change in lumbar spine BMD from baseline to 6 months after the zoledronic acid infusion. • The proportion of patients who fails to maintain BMD (total hip, femoral neck and spine). Failure is defined as ≥ 3 % BMD loss at the lumbar spine or ≥ 5 % BMD loss at the femoral neck or total hip.
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E.5.2 | Secondary end point(s) |
Secondary endpoints • Changes in total hip, femoral neck and lumbar spine BMD from baseline to one year after the zoledronic acid infusion. • Changes in total hip, femoral neck and lumbar spine BMD from baseline to two years after the zoledronic acid infusion. • Changes in trabecular bone volume fraction (bone volume/tissue volume, BV/TV) and cortical porosity measured by high-resolution peripheral quantitative computed tomography (HR-pQCT) scan at the radius and tibia from baseline to one year after the zoledronic acid infusion. • Changes in CTX and procollagen type I N-terminal propeptide (PINP) from baseline to six months after the zoledronic acid infusion. • Changes in CTX and PINP from baseline to 12 months after the zoledronic acid infusion. • Morphometric vertebral fractures assessed by vertebral fracture assessment (VFA) one and two years after the zoledronic acid infusion. |
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
• Changes in total hip, femoral neck and lumbar spine BMD from baseline to 1 year after the ZOL infusion. • Changes in total hip, femoral neck and lumbar spine BMD from baseline to 2 years after the ZOL infusion. • Changes in trabecular bone volume fraction and cortical porosity measured by HR-pQCT scan at the radius and tibia from baseline to 1 year after the ZOL infusion. • Changes in CTX and PINP from baseline to 6 months after the ZOL infusion. • Changes in CTX and PINP from baseline to 12 months after the zoledronic acid infusion. • Morphometric vertebral fractures assessed by vertebral fracture assessment (VFA) one and two years after the zoledronic acid infusion. |
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E.6 and E.7 Scope of the trial |
E.6 | Scope of the trial |
E.6.1 | Diagnosis | No |
E.6.2 | Prophylaxis | Yes |
E.6.3 | Therapy | Yes |
E.6.4 | Safety | No |
E.6.5 | Efficacy | Yes |
E.6.6 | Pharmacokinetic | No |
E.6.7 | Pharmacodynamic | No |
E.6.8 | Bioequivalence | No |
E.6.9 | Dose response | No |
E.6.10 | Pharmacogenetic | No |
E.6.11 | Pharmacogenomic | No |
E.6.12 | Pharmacoeconomic | No |
E.6.13 | Others | No |
E.7 | Trial type and phase |
E.7.1 | Human pharmacology (Phase I) | No |
E.7.1.1 | First administration to humans | No |
E.7.1.2 | Bioequivalence study | No |
E.7.1.3 | Other | No |
E.7.1.3.1 | Other trial type description | |
E.7.2 | Therapeutic exploratory (Phase II) | No |
E.7.3 | Therapeutic confirmatory (Phase III) | No |
E.7.4 | Therapeutic use (Phase IV) | Yes |
E.8 Design of the trial |
E.8.1 | Controlled | No |
E.8.1.1 | Randomised | Yes |
E.8.1.2 | Open | Yes |
E.8.1.3 | Single blind | No |
E.8.1.4 | Double blind | No |
E.8.1.5 | Parallel group | No |
E.8.1.6 | Cross over | No |
E.8.1.7 | Other | No |
E.8.2 | Comparator of controlled trial |
E.8.2.1 | Other medicinal product(s) | No |
E.8.2.2 | Placebo | No |
E.8.2.3 | Other | No |
E.8.3 |
The trial involves single site in the Member State concerned
| No |
E.8.4 | The trial involves multiple sites in the Member State concerned | Yes |
E.8.4.1 | Number of sites anticipated in Member State concerned | 4 |
E.8.5 | The trial involves multiple Member States | No |
E.8.6 Trial involving sites outside the EEA |
E.8.6.1 | Trial being conducted both within and outside the EEA | No |
E.8.6.2 | Trial being conducted completely outside of the EEA | No |
E.8.7 | Trial has a data monitoring committee | No |
E.8.8 |
Definition of the end of the trial and justification where it is not the last
visit of the last subject undergoing the trial
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The study will be stopped immediately if regular, serious, or life threatening side effects comes to the investigator's knowledge. The study will be terminated for single participants if the investigator suspects that the participant will be in risk of serious, life-threatening events if he or she continues as part of the study. |
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E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | 2 |
E.8.9.1 | In the Member State concerned months | 6 |
E.8.9.1 | In the Member State concerned days | 0 |
E.8.9.2 | In all countries concerned by the trial years | 2 |
E.8.9.2 | In all countries concerned by the trial months | 6 |
E.8.9.2 | In all countries concerned by the trial days | 0 |