E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Rett syndrome (RTT) is a neurological disorder with devastating consequences on the brain. It is characterized by stagnation of development followed by regression, both occurring between age 6 months and 3 years. The clinical picture is dominated by cognitive impairment, loss of communication skills, purposeful hand movements, hand stereotypies, progressive deceleration of head growth, and abnormal locomotion. RTT syndrome presently has no effective therapy other than pallitative care |
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MedDRA Classification |
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 main objective is to test the efficiacy of Dextromethorphan (DM) in RTT to block the disproportionate numbers of glutamate/NMDA receptors in the brain, to alleviate symptoms.
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E.2.2 | Secondary objectives of the trial |
Secondary objectives of the trial will additionally be a mode of therapy for other epileptic conditons that are associated with glutamatergic excitotoxicity. |
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
1) Those who have classic or atypical RTT with a proven mutation in the MeCP2 gene
2) Those with documented EEG evidence of spike activity (epileptic EEG) who may or may not have clinical seizures
3) Subjects must be between 2years -14.99 years of age. Once safety is established in the 2-4.99-year-old subjects, we will then consider reducing the inclusion age to below 2 years of age. |
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E.4 | Principal exclusion criteria |
1) Those with clinical detectable Rett syndrome or similar clinical picture but without an established mutation in the MeCP2 gene
2) Those with clinical detectable Rett syndrome or similar clinical picture but who do not have EEG evidence of spike activity
3) Those with mutations in the MeCP2 gene but who have had brain resection or surgical intervention; for example, tumor, hydrocephalus, severe head trauma; or, an associated severe medical illnesses such as vasculopathies, malignancies, diabetes, thyroid dysfunction, etc
4) Those on medications that could interact with DM, e.g. MAO inhibitors, SSRI, sibutramine etc. to avoid a serotonin syndrome; quinidine and drugs metabolized by the CYP450 isoform CYP2D6 (e.g. amiodarone, haloperidol, propfenone, thioridazine)
5) Those proven to be intermediate or slow metabolizers of DM
6) Those with reported adverse reactions to DM
7) Those whose pregnancy test is positive
8) Those showing poor compliance with any aspect of the study
9) foster children. |
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E.5 End points |
E.5.1 | Primary end point(s) | |
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 | Yes |
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 | Information not present in EudraCT |
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
| Yes |
E.8.4 | The trial involves multiple sites in the Member State concerned | Information not present in EudraCT |
E.8.5 | The trial involves multiple Member States | Information not present in EudraCT |
E.8.6 Trial involving sites outside the EEA |
E.8.6.1 | Trial being conducted both within and outside the EEA | Yes |
E.8.6.2 | Trial being conducted completely outside of the EEA | Information not present in EudraCT |
E.8.6.3 | If E.8.6.1 or E.8.6.2 are Yes, specify the regions in which trial sites are planned |
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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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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 |