E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Patients suffering relapsing- remitting multiple sclerosis will be investigated in this study, with an EDSS score less or equal to 4.0. Patients must be older than 18 years old. There must not be any clinical evidence of an MS relpase within the 3 months prior to inclusion. |
Patiënten die lijden aan relapsing-remitting multiple sclerose zullen geïncludeerd worden in deze studie, met een EDSS score kleiner of gelijk aan 4. Patiënten moeten ouder zijn dan 18 jaar. Er mag geen klinische evidentie zijn voor het doorgemaakt hebben van een MS opstoot 3 maanden voorafgaand aan de inclusie. |
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E.1.1.1 | Medical condition in easily understood language |
Patients with relapsing-remitting Multiple Sclerosis, older than 18 years old, who are clinically stable at the moment of inclusion. |
RRMS patiënten, ouder dan 18 jaar, die klinisch stabiel zijn op het moment van de inclusie. |
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E.1.1.2 | Therapeutic area | Diseases [C] - Immune System Diseases [C20] |
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 |
Cerebral perfusion is globally decreased in patients with Multiple Sclerosis (MS) and might contribute to progressive axonal degeneration, cognitive decline and fatigue. In this placebo-controlled, double-blind, randomized trial with the endothelin-1 antagonist bosentan, we want to explore whether pharmacological restoration of cerebral blood flow (CBF) in patients with MS can improve axonal metabolism and clinical disability. |
De cerebrale doorbloeding is globaal verlaagd in patiënten met Multiple Sclerose (MS) en kan op zijn beurt bijdragen tot de progressieve axonale degeneratie, cognitieve achteruitgang en vermoeidheid. In deze placebo-gecontrolleerde dubbel-blinde gerandomiseerde studie met de endotheline-1 antagonist bosentan, willen we graag nagaan of het pharmacologische herstel van de cerebrale blood flow (CBF) in patiënten met MS het axonaal metabolism en de klinische achteruitgang kan verbeteren. |
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E.2.2 | Secondary objectives of the trial |
Not applicable. |
Niet van toepassing. |
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
- Patients with the diagnosis of relapsing-remitting MS, according to the 2010 Revised Mc Donald Criteria
- Age > 18 years
- Written informed consent must be obtained
- EDSS score < or equal to 4 |
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E.4 | Principal exclusion criteria |
- Clinical evidence of MS relapse within 3 months prior to inclusion.
- Known contra-indications for bosentan: liver dysfunction (AST and/or ALT > 3 x ULN), use of cyclosporine A and glibenclamide, allergy
- Pregnancy |
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E.5 End points |
E.5.1 | Primary end point(s) |
N-acetyl aspartate (NAA) levels after restoring the cerebral blood flow (CBF) with the endothelin-1 antagonist. |
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
Before the start of the study (day 0).
At the end of the study (this is at day 28 +/- 2 days) |
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E.5.2 | Secondary end point(s) |
- Effects on the clinical disability and fatigue in MS patients
- Effects on biomarkers of multiple sclerosis (serum neurofilament light chain) wich can be used as a marker of axonal damage. |
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
Before the start of the study (day 0).
At the end of the study (this is at day 28 +/- 2 days) |
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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 | No |
E.6.5 | Efficacy | No |
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) | Yes |
E.7.3 | Therapeutic confirmatory (Phase III) | No |
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 | 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 | Yes |
E.8.2.3 | Other | No |
E.8.2.4 | Number of treatment arms in the trial | 2 |
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 | 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 end of the trial is defined as the day where the last subject will undergo the last examens written in the protocol. |
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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 | |
E.8.9.1 | In the Member State concerned months | |
E.8.9.1 | In the Member State concerned days | |