E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
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E.1.1.1 | Medical condition in easily understood language |
People with Fabry disease have a genetic disorder that prevents their
bodies from breaking down a particular lipid (a fat-like substance) in
their cells. |
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E.1.1.2 | Therapeutic area | Diseases [C] - Nutritional and Metabolic Diseases [C18] |
MedDRA Classification |
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 14.1 |
E.1.2 | Level | PT |
E.1.2 | Classification code | 10016016 |
E.1.2 | Term | Fabry's disease |
E.1.2 | System Organ Class | 10010331 - Congenital, familial and genetic disorders |
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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 |
To characterize the effects of 150 mg and 450 mg of AT1001 administered 2 hours before administration of agalsidase on the safety and plasma pharmacokinetics of agalsidase in subjects with Fabry Disease
To characterize the effect of agalsidase on the safety and plasma pharmacokinetics of 150 mg of AT1001 administered 2 hours before administration of agalsidase in subjects with Fabry Disease |
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E.2.2 | Secondary objectives of the trial |
To characterize the effect of 150 mg and 450 mg AT1001 on the distribution of α-Gal A to skin after administration of agalsidase |
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
1. Male, diagnosed with Fabry disease and between 18 and 65 years of age, inclusive :
2. Body Mass Index (BMI) between 18-35
3. Subject initiated treatment with agalsidase at least 1 month, prior to screening and has received at least two infusions, before Screening Visit
4. Subject’s dose level, dosing regimen and form (i.e., alfa or beta) of agalsidase have been stable (stable dose defined as not varying by more than ± 20%) for at least 1 month before Screening Visit
5. Subject has a estimated creatinine clearance ≥ 50 mL/min at Screening; creatinine clearance to be estimated using the 4-parameter MDRD equation:
eGFR (mL/min/1.73 m2) = 186 x (Scr)-1.154 x (Age)-0.203 x (0.742 if female) x (1.212 if African-American)
6. Subject agrees to use medically accepted methods of contraception during the study and for 30 days after study completion
7. Subject is willing and able to provide written informed consent |
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E.4 | Principal exclusion criteria |
1. Subject has had a documented transient ischemic attack, ischemic stroke, unstable angina, or myocardial infarction within the 3 months before Screening
2. Subject has clinically significant unstable cardiac disease (e.g., cardiac disease requiring active management, such as symptomatic arrhythmia, unstable angina, or NYHA class III or IV congestive heart failure)
3. Subject has a history of allergy or sensitivity to study drug (including excipients) or other iminosugars (e.g., miglustat, miglitol)
4. Subject requires a concomitant medication prohibited by the protocol: Glyset® (miglitol), or Zavesca® (miglustat)
5. Any investigational/experimental drug or device within 30 days of Screening, except for the use of investigational Enzyme Replacement Therapy for Fabry Disease.
6. Protocol Amendment 4.0, version date November 2, 2011, eliminates Exclusion Criterion 6. The numerical reference of the other Exclusion Criteria will remain as before in prior versions of the protocol.
7. Subject has any intercurrent illness or condition that may preclude the subject from fulfilling the protocol requirements or suggests to the investigator that the potential subject may have an unacceptable risk by participating in this study |
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E.5 End points |
E.5.1 | Primary end point(s) |
AT1001 plasma pharmacokinetic parameter values after administration of a single oral dose of AT1001 alone and in combination with agalsidase
Agalsidase plasma pharmacokinetic parameter values by measurement of α-Gal A enzyme levels and protein levels after agalsidase infusion alone and in combination with AT1001
Safety variables: adverse events, clinical laboratory tests, 12-Lead ECGs, physical examinations, vital signs and infusion reactions |
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
PK blood sampling in Period 1 and 2 (Stages 1 and 2) - Day1, Day 2, Day 7 and Day 14; PK blood sampling Period 3 (Stage 1 only) - Day 7 and Day 8. |
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E.5.2 | Secondary end point(s) |
Distribution of agalsidase to skin after dosing with agalsidase alone and in combination with AT1001 24 hours and 7 days after dosing by measuring α-Gal A levels and protein levels |
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
Skin biopsies during Period 1 and 2 (Stages 1 and 2); Day 1, Day 2 and Day 7 for period 1 and Day 2 and Day 7 for period 2 |
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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 | 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 | No |
E.8.1.1 | Randomised | No |
E.8.1.2 | Open | No |
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.8.2.4 | Number of treatment arms in the trial | 1 |
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.8.4.1 | 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 | 2 |
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 | No |
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 |
Australia |
Belgium |
Canada |
France |
Netherlands |
Switzerland |
United Kingdom |
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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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The end of trial is defined as the last visit of the last subject undergoing the trial. |
|
E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | 0 |
E.8.9.1 | In the Member State concerned months | 6 |
E.8.9.1 | In the Member State concerned days | 0 |
E.8.9.2 | In all countries concerned by the trial years | 1 |
E.8.9.2 | In all countries concerned by the trial months | 0 |
E.8.9.2 | In all countries concerned by the trial days | 0 |