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 | 6.1 |
E.1.2 | Level | PT |
E.1.2 | Classification code | 10016016 |
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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 primary objective of this study is to assess the pharmacodynamic effects of alternative weekly and every 2 week dosing regimens (i.e. drug given every other week) of Replagal in comparison to the current standard Replagal treatment regimen of 0.2 mg/kg every 2 weeks. |
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E.2.2 | Secondary objectives of the trial |
Secondary objectives are to evaluate the safety and pharmacokinetics at each of the dose levels and regimens. |
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E.2.3 | Trial contains a sub-study | Information not present in EudraCT |
E.3 | Principal inclusion criteria |
1. Subject is a male hemizygote, age 18 years or older with confirmed diagnosis of Fabry Disease. Diagnosis of Fabry disease may be confirmed by proof of a mutation of the a-Galactosidase A gene compatible with Fabry Disease and/or a deficiency of a-Galactosidase A (< 4.0 nmol/mL/hour in plasma or serum or < 8% of average mean normal in leukocytes).
2. Subject must have one or more clinical manifestations of Fabry disease including neuropathic pain, angiokeratoma, corneal verticillata, cardiomyopathy, hypo- or anhydrosis, abdominal pain and/or diarrhea, serum creatinine > 1.0 mg/dl or proteinuria > 300 mg/24 hours.
3. Subject must have voluntarily signed an Institutional Review Board (IRB) approved informed consent form after all relevant aspects of the study have been explained and discussed with the subject. |
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E.4 | Principal exclusion criteria |
1. Subject has been previously treated with Replagal or any other enzyme replacement therapy for Fabry Disease. If the patient has previously been treated with Replagal or another enzyme replacement therapy then they must have been off the therapy for at least 30 days and must have a base-line Day -14 antibody blood sample drawn and that test must be negative for antiagalsidase alfa IgG and IgE antibodies and not experienced a prior severe infusion reactions with prior enzyme replacement therapy.
2. Subject has been enrolled in another clinical investigative study in the past 30 days
3. Subject is unable to give informed consent or is deemed unable to comply with all aspects of the clinical trial.
4. Subject has plasma Gb3 drawn on Day –14 (base-line) less than 4.0 nmol/mL.
5. Subject is undergoing dialysis or who has received a renal transplant.
6. Subjects who cannot tolerate the study procedures or who are unable or unwilling to travel to the study center as required by this protocol.
7. Subjects with an inter-current medical condition that would render them unsuitable for the study (e.g. HIV, diabetes) by confounding an assessment of the effects of the experimental therapy and its adverse events.
8. Subjects who in the opinion of the investigator (for whatever reason) are thought to be unsuitable for the study. |
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E.5 End points |
E.5.1 | Primary end point(s) |
The pharmacodynamic parameter to be assessed is plasma globotriaosylceramide (Gb3).
Clinical parameters including sweating, heart rate variability, proteinuria, severity of neuropathic pain, pain and anti-diarrheal medication usage, frequency and severity of abdominal pain, and frequency of diarrhea also will be assessed. |
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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 | No |
E.6.4 | Safety | Yes |
E.6.5 | Efficacy | No |
E.6.6 | Pharmacokinetic | Yes |
E.6.7 | Pharmacodynamic | Yes |
E.6.8 | Bioequivalence | No |
E.6.9 | Dose response | Yes |
E.6.10 | Pharmacogenetic | Information not present in EudraCT |
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) | Information not present in EudraCT |
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 | Information not present in EudraCT |
E.7.1.3.1 | Other trial type description | |
E.7.2 | Therapeutic exploratory (Phase II) | Yes |
E.7.3 | Therapeutic confirmatory (Phase III) | Information not present in EudraCT |
E.7.4 | Therapeutic use (Phase IV) | Information not present in EudraCT |
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 | Information not present in EudraCT |
E.8.1.4 | Double blind | Information not present in EudraCT |
E.8.1.5 | Parallel group | Information not present in EudraCT |
E.8.1.6 | Cross over | Information not present in EudraCT |
E.8.1.7 | Other | Information not present in EudraCT |
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
| No |
E.8.4 | The trial involves multiple sites in the Member State concerned | Yes |
E.8.5 | The trial involves multiple Member States | Yes |
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 | 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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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 | 4 |
E.8.9.1 | In the Member State concerned days | |
E.8.9.2 | In all countries concerned by the trial months | 6 |