E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
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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 | LLT |
E.1.2 | Classification code | 10021041 |
E.1.2 | Term | Hypoparathyroidism |
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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 |
The aim of the study is to assess whether PTH (1-84) therapy posses advantages compared to conventional treatment with active vitamin D in patients with hypoparathyroidism on muscle function, fat metabolism, quality of life, calcium homeostasis, bone metabolism, and body composition. |
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E.2.2 | Secondary objectives of the trial |
• Muscle function: Effects of treatment on muscle strength are determined using a dynamometer. In addition, effects of treatment on muscle function are assessed through muscle biopsies, electromyographic, and by biochemical measures (muscle enzymes). Potential effects on heart muscle function are assessed by echocardiography and ECG. • Balance function: Is assessed using a stadiometer (Meititur Ltd, Finland). • Quality of life: Effect of treatment on indices of quality of life is assessed using the SF-36v2- and WHO-Five Well-Being Index (WHO-5)-survey. • Calcium homeostasis, bone metabolism, and body composition. Effects of treatment are assessed by measurements of calcitropic hormones, biochemical markers of bone turnover, and bone biopsies. In addition, bone mineral density and body composition is measured. • Fat metabolism: Effects of treatment on fat metabolism is determined by analysis of fat biopsies. Additionally, plasma cholesterol levels are measured. |
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
• Patients with hypoparathyroidism due to low endogenous plasma PTH levels, who have been treated with a 1-alfa-hydroxylated vitamin D preparation for a minimum of one years. • Prior to start of study, participants are required to have received a daily supplement of at least 400 IU (10mcrg) of vitamin D (ergocalciferol or cholecalciferol) for at least 3 months. Subjects may be treated with ergocalciferol or cholecalciferol during a run-in period of three months before entering the study. • TSH within reference range. • Normal plasma magnesium level (If not, magnesium supplements may be provided during a 3 months run in period). • Plasma calcium levels within the normal reference range or slightly below. • Use of safe contraceptive methods (fertile women). |
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E.4 | Principal exclusion criteria |
• Severely impaired renal or hepatic function • Previous or present malignancies affecting the skeleton • Prior radiation therapy involving the skeleton • Current treatment with digoxin • Granulomatous disease • Paget's disease of bone • Pregnancy / planned witnin the next year • Hospitalized due to chronic alcohol abuse • Major medical or social problems that will be likely to preclude full participation in the study |
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E.5 End points |
E.5.1 | Primary end point(s) |
Maximal voluntary knee extension strength. |
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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 | 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 | 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
| Yes |
E.8.4 | The trial involves multiple sites in the Member State concerned | No |
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 | 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
|
The inclusion ends when 60 study subjectts are included. The trial end at 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 | 2 |
E.8.9.1 | In the Member State concerned months | 0 |
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 | 0 |