E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Fibrous dysplasia
•Study I: patients with fibrous dysplasia of bone, with bone pain intensity above 3 on a visual analogical scale from 0 to 10.
•Study II: patients with fibrous dysplasia of bone, with at least one osteolytic lesion and no current bone pain.
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MedDRA Classification |
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 9.1 |
E.1.2 | Level | PT |
E.1.2 | Classification code | 10016664 |
E.1.2 | Term | Fibrous dysplasia of bone |
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E.1.3 | Condition being studied is a rare disease | Yes |
E.2 Objective of the trial |
E.2.1 | Main objective of the trial |
1) Efficacity of the biphosphonate risedronate (associated to calcium and vitamin D, or to calcium, oral phosphate, and calcitriol in patients who have renal phosphonate wasting) to improve bone pain in patients with fibrous dysplasia of bone.
2) Efficacity of the biphosphonate risedronate (associated to calcium and vitamin D, and to oral phosphonate in patients who have renal phosphate wasting) to improve osteolytic lesions in patients with fibrous dysplasia of bone. |
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E.2.2 | Secondary objectives of the trial |
1) Safety and tolerability of the biphosphonate risedronate (associated to calcium and vitamin D, or to calcium, oral phosphate, and calcitriol in patients who have renal phosphonate wasting) in patients with fibrous dysplasia of bone.
2) Efficacity of the biphosphonate risedronate (associated to calcium and vitamin D, or to calcium, oral phosphate, and calcitriol in patients who have renal phosphonate wasting) to improve quality of life in patients with fibrous dysplasia of bone |
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
· Study I: patients with fibrous dysplasia of bone, with bone pain intensity above 3 on a visual analogical scale from 0 to 10. · Study II: patients with fibrous dysplasia of bone, with at least one osteolytic lesion and no current bone pain.
Diagnosis of fibrous dysplasia will be asserted by a clinical expert (one of the clinical investigators), on clinical, radiographic and possibly histologic data. A radionuclide bone scan will be performed in each screened patient in order to identify every skeletal dysplastic lesions.
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E.4 | Principal exclusion criteria |
For both study I and II, the following exclusion criteria will apply: - patients < 8 years old (no adequate experience in the use of BP before this age) - patients with other diseases or taking other treatments likely to affect bone metabolism - patients with malignant diseases or conditions likely to reduce their life expectancy to less than three years - patients with a history of significant upper gastrointestinal disorders (e.g. oesophagitis and gastroduodenal ulcer), which can interfere with compliance - kidney failure (creatinin clearance < 25 ml/mn) - severe liver disease that would affect alkaline phosphatase levels, such as hepatitis, primary biliary sclerosis, and cirrhosis - history of iritis or uveitis - untreated rickets or osteomalacia - allergy to BP - prior use of bisphosphonates, fluoride - pregnancy and lactation - laboratory abnormalities that may be considered as clinically significant by trial physicians
· In both studies, oestrogen replacement therapy will be allowed, and also prior use of calcitonin after a 3 months wash out period. · Women with childbearing potential must have a negative serum b-HCG pregnancy test, and they must be willing to practice a medically acceptable form of birth control during the trial.
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E.5 End points |
E.5.1 | Primary end point(s) |
- Study I : Intensity of bone pain assessed by a visual analogical scale [VAL] ranging from 0 to 10 on the most painful site
- Study II: Radiological improvement |
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E.6 and E.7 Scope of the trial |
E.6 | Scope of the trial |
E.6.1 | Diagnosis | Yes |
E.6.2 | Prophylaxis | Yes |
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 | No |
E.6.11 | Pharmacogenomic | No |
E.6.12 | Pharmacoeconomic | Yes |
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) | Yes |
E.7.4 | Therapeutic use (Phase IV) | No |
E.8 Design of the trial |
E.8.1 | Controlled | Yes |
E.8.1.1 | Randomised | Yes |
E.8.1.2 | Open | No |
E.8.1.3 | Single blind | No |
E.8.1.4 | Double blind | Yes |
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 | Yes |
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 | No |
E.8.4.1 | Number of sites anticipated in Member State concerned | 1 |
E.8.5 | The trial involves multiple Member States | Yes |
E.8.5.1 | Number of sites anticipated in the EEA | 11 |
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 | Yes |
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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E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | 3 |
E.8.9.1 | In the Member State concerned months | |
E.8.9.1 | In the Member State concerned days | |
E.8.9.2 | In all countries concerned by the trial years | 3 |