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 | 10018048 |
E.1.2 | Term | Gaucher's disease |
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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 compare the effects of GA-GCB and imiglucerase on hemoglobin concentration in patients with type 1 Gaucher disease. |
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E.2.2 | Secondary objectives of the trial |
To compare the effects of GA-GCB and imiglucerase on platelet count
To compare the effects of GA-GCB and imiglucerase on liver and spleen volumes (by MRI)
To compare the effects of GA-GCB and imiglucerase on Gaucher disease-specific biomarkers (plasma chitotriosidase and CCL18 levels)
To evaluate the safety of GA-GCB and imiglucerase in patients with type 1 Gaucher disease, as measured by standard clinical laboratory assessments (including rates of antibody formation and enzyme neutralizing antibody activity) and safety evaluations (including rates of infusion-related adverse events and the proportion of patients requiring premedication use to manage infusion-related adverse events) for each treatment group
To compare the effects of GA-GCB and imiglucerase on the earliest time to response for hemoglobin (defined as a greater than or equal to 1 g/dL improvement in hemoglobin levels relative to Baseline)
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
The patient has a documented diagnosis of type 1 Gaucher disease, as determined by deficient glucocerebrosidase (GCB) activity relative to normal as measured in leukocytes or by genotype analysis.
The patient is at least 2 years of age.
The patient has Gaucher disease-related anemia, defined as hemoglobin concentration below the lower limit of normal for age and gender (based on the results obtained during Screening and at Baseline). AND ONE OR MORE OF THE FOLLOWING THREE CRITERIA:
The patient has at least moderate splenomegaly (2 to 3 cm below the left costal margin), by palpation. (Patients who have undergone splenectomy must satisfy either inclusion criterion 3c or inclusion criterion 3d to be eligible for this study.)
OR
The patient has Gaucher disease-related thrombocytopenia (defined as a platelet count less than or equal to 120 x 10000/cu mm).
OR
The patient has a Gaucher disease-related readily palpable enlarged liver.
The patient has not received treatment for Gaucher disease (investigational products, miglustat, or imiglucerase) within 12 months prior to study entry, as documented in the patient’s medical history.
Female patients of child-bearing potential must agree to use a medically acceptable method of contraception at all times during the study and must have negative results to a pregnancy test performed at the time of enrollment and as required throughout their participation in the study. Male patients must use a medically acceptable method of birth control throughout their participation in the study and must report their partner's pregnancy.
The patient, the patient’s parent(s) or legal guardian(s) has provided written informed consent that has been approved by the Institutional Review Board/Independent Ethics Committee (IRB/IEC).
The patient must be sufficiently cooperative to participate in this clinical study as judged by the Investigator.
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E.4 | Principal exclusion criteria |
The patient has type 2 or 3 Gaucher disease or is suspected of having type 3 Gaucher disease.
The patient is antibody-positive to imiglucerase or GA-GCB at Screening or the patient has experienced an anaphylactic or anaphylactoid reaction to imiglucerase or GA-GCB or the patient has required premedication use to manage infusion reactions to imiglucerase or GA-GCB.
The patient has received treatment with any non-Gaucher disease-related investigational drug or device within the 30 days prior to study entry; such use during the study is not permitted.
The patient is currently receiving red blood cell growth factor (e.g. erythropoeitin) or has received chronic systemic corticosteroids, or has been on such treatment within the last 6 months. (NOTE: Inhaled corticosteroid therapy e.g. treatment for asthma is acceptable. Use of intermittent corticosteroids as premedication to prevent infusion reactiions is allowed.)
The patient is known to be positive for human immunodeficiency virus (HIV), i.e., has a documented positive result. Patients who do not have a documented positive result will be tested for HIV at screening.
The patient is known to be positive for hepatitis B and/or C, i.e., has a documented positive result. Patients who do not have a documented positive result will be tested for hepatitis at screening.
The patient presents with exacerbated anemia at Screening (e.g., due to folic acid and/or vitamin B12 deficiency).
The patient presents with serum transferrin saturation <20 %and serum ferritin < 50 ng/mL
The patient, patient’s parent(s), or patient’s legal guardian(s) is/are unable to understand the nature, scope, and possible consequences of the study.
The patient has a significant comorbidity(ies) that might affect study data or confound the study results (e.g., malignancies, primary biliary cirrhosis, autoimmune liver disease, etc.).
The patient is unable to comply with the protocol, e.g., has a clinically relevant medical condition making implementation of the protocol difficult, has an uncooperative attitude, is unable to return for safety evaluations, or is otherwise unlikely to complete the study, as determined by the Investigator.
Patient is pregnant or lactating
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E.5 End points |
E.5.1 | Primary end point(s) |
The primary endpoint of this study is to measure the mean change from Baseline to Week 41/End of Study (EOS) in hemoglobin concentration between the two treatment groups. |
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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 | 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 | Information not present in EudraCT |
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) | Yes |
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 | 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) | Yes |
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 | 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 | 3 |
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 | 1 |
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 | 1 |
E.8.9.2 | In all countries concerned by the trial months | 2 |
E.8.9.2 | In all countries concerned by the trial days | 0 |