E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Advanced breast cancer with bone metastases |
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MedDRA Classification |
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 |
The purpose of the study is to investigate whether patients with breast cancer that has spread to the bones need a zoledronic acid treatment every 3-4 weeks as per the "standard" clinical schedule (i.e. how often it is given) or whether the schedule of zoledronic acid could be tailored to the individual patient by measuring the level of bone breakdown through a urine test. The primary objective of the study will be to compare the frequency (number) and timing of all skeletal related events (SREs) between the two schedules. Skeletal related events (SREs) are defined as bone complications such as fractures, additional treatment to the bone (e.g. radiotherapy or surgery), spinal cord compression and hypercalcaemia of malignancy. |
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E.2.2 | Secondary objectives of the trial |
The secondary objectives of the study are to compare the impact of both treatment regimens on: - Patient quality of life - The clinical burden of skeletal complications - Pain, performance status and analgesic use - The incidence of new bone metastases - Overall survival - Bisphosphonate use and expenditure on administration
There are also three sub-studies that will compare the impact of both treatment regimens on the following in a sub-set of the trial patients: - Health care utilisation - Evaluation of the clinical use of a local "point of care" test as a means of calculating bone marker levels - Changes in serum markers of bone metabolism |
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E.2.3 | Trial contains a sub-study | Information not present in EudraCT |
E.3 | Principal inclusion criteria |
•Patients with advanced breast cancer (primary breast cancer having been histologically confirmed) with radiographic confirmation of bone metastases (at least one bone scan lesion must be confirmed as metastatic on plain radiographs or CT/MR imaging) •Patients who have received a minimum of 4 months of zoledronic acid to treat metastatic bone disease prior to first study treatment (i.e. a minimum of 4 or 5 zoledronic acid treatments prior to first study treatment for patients receiving 4- or 3-weekly infusions, respectively) •Men or women aged ≥ 18 years •WHO (ECOG) performance status 0-2 •Women of child-bearing potential / men must be using a reliable and appropriate method of contraception. •Ability to read and complete the QoL questionnaires •Urine sample taken for central laboratory Ntx analysis prior to first study treatment •Written informed consent.
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E.4 | Principal exclusion criteria |
•Bisphosphonate treatment within the 3 weeks prior to planned first study treatment •More than 12 months bisphosphonate (any) treatment for metastatic bone disease prior to first study treatment •Less than 4 months zoledronic acid treatment specifically for metastatic bone disease prior to first study treatment •Abnormal renal function as evidenced by a calculated creatinine clearance < 30 ml/minute (sample should be taken within the 28 days prior to randomisation) •Poor venous access (use of Hickman or PICC lines for treatment administration should be in accordance with local hospital policy) •Metabolic bone disease (e.g. Paget’s disease of bone. Presence of osteoporosis would not exclude a patient) •Inability to comply with study procedures, especially the reliable collection of urine samples for bone resorption marker measurements •Estimated life expectancy of < 6 months, as suggested by the presence of brain metastases or liver involvement with significantly impaired liver function (transaminases > 3 × upper limit of normal [ULN] or bilirubin > 1.5 × ULN - from blood taken within 28 days of randomisation) •Treatment with systemic bone seeking radioisotopes (e.g. strontium, samarium) within the 3 months prior to randomisation •Wide field (hemi-body) radiotherapy within the 3 months prior to randomisation - recent standard field, localised radiotherapy is not an exclusion criteria •Concomitant medication with drugs known to affect bone metabolism - calcitonin, high dose systemic corticosteroids (> 10 mg prednisolone/day or equivalent) •Pregnancy or breast-feeding •Current active dental problems including infection of the teeth or jawbone (maxilla or mandibular), or a current or prior diagnosis of osteonecrosis of the jaw (ONJ) •Recent (within 4 weeks of randomisation) or planned dental or jaw surgery (e.g. extractions, implants) •History of prior cancers within the preceding 5 years (aside from ipsilateral / contralateral breast, non-melanomatous skin cancer, carcinoma in situ of the uterine cervix or superficial bladder cancer treated with curative intent) |
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E.5 End points |
E.5.1 | Primary end point(s) |
To compare the frequency and timing of all skeletal related events (SREs). SREs are defined as: - Fractures: All clinical fractures will be reported and classified by site and shether considered to be disease related (i.e. pathological) or traumatic. In addition all fractures identified on follow-up radiographs (including vertebral wedge / compression fractures) will be recorded and classified by site and whether they are associated with pain (i.e. symptomatic) - Radiotherapy to bone either for relief of pain or to treat or prevent pathological fractures or spinal cord compression - Hypercalcaemia of malignancy (defined as corrected serum calcium of >2.7mmol/l) - Orthopaedic surgery to prevent or treat pathological fractures or to prevent or treat spinal cord compression - Spinal cord compression (defined as neurological dysfunction assocaited with imaging evidence of encroahment by tumour or bone onto the spinal cord / cauda equina) |
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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 | No |
E.6.3 | Therapy | Yes |
E.6.4 | Safety | Yes |
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 | Information not present in EudraCT |
E.6.11 | Pharmacogenomic | No |
E.6.12 | Pharmacoeconomic | Yes |
E.6.13 | Others | Yes |
E.6.13.1 | Other scope of the trial description |
Optional sub-study to assess serum markers of bone metabolism |
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E.7 | Trial type and phase |
E.7.1 | Human pharmacology (Phase I) | No |
E.7.1.1 | First administration to humans | Information not present in EudraCT |
E.7.1.2 | Bioequivalence study | Information not present in EudraCT |
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 | Yes |
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 | Yes |
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 | Yes |
E.8.2.3.1 | Comparator description |
Same IMP (zoledronic acid) but different schedule of administration |
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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.8.5 | 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 | Information not present in EudraCT |
E.8.7 | Trial has a data monitoring committee | Information not present in EudraCT |
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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For purposes of the MHRA application, end of the trial is defined as last patient last treatment visit. This is anticipated to be at approximately 5 years after the study commences recruitment. Following this, a non-interventional protocol will be undertaken to follow the secondary endpoint of "overall survival" at 3 and 5 years. |
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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 | 5 |
E.8.9.1 | In the Member State concerned months | |
E.8.9.1 | In the Member State concerned days | |