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 |
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E.1.1.2 | Therapeutic area | Diseases [C] - Musculoskeletal Diseases [C05] |
MedDRA Classification |
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 18.1 |
E.1.2 | Level | LLT |
E.1.2 | Classification code | 10036143 |
E.1.2 | Term | Pompe's disease |
E.1.2 | System Organ Class | 100000004850 |
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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 the study is to determine if treatment with BMN 701 results in an increase in MIP measured at the mouth by the Mueller maneuver from Baseline to Week 24 in subjects with late-onset Pompe disease previously treated with rhGAA.
The primary objective of the extension period of the study is to evaluate the long-term safety and efficacy of BMN 701 in subjects with late-onset Pompe disease previously treated with rhGAA. |
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E.2.2 | Secondary objectives of the trial |
-Determine if treatment with BMN 701 results in an increase in MEP
-Determine if treatment with BMN 701 results in changes in FVC upright
-Evaluate the effect of BMN 701 on 6MWD from Baseline to Week 24
-Evaluate the safety, tolerability, and immunogenicity of BMN 701
-Determine the pharmacokinetic (PK) parameters of BMN 701 when administered within a repeat dosing regimen of every 2 weeks at 20 mg/kg
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
• Willing and able to provide written informed consent, after the nature of the study has been explained, and prior to any study-related procedures.
• Diagnosed with late-onset Pompe disease based on 2 currently or previously documented GAA gene mutations, and endogenous GAA activity <75% of the lower limit of the normal adult range reported by the testing laboratory, as assessed by dried blood spot or whole blood assay.
--Historical data may be used to qualify subjects at Screening but samples will also be obtained for the assays to be performed at a central laboratory during the study to establish baseline demographics. If the historical data is not available, the results from the central laboratory confirming eligibility must be available prior to Day 1.
• ≥ 18 years of age at the time of enrollment in the study
• Has received prior treatment with commercial rhGAA as defined by ALL of the following:
--has received treatment with commercial rhGAA for ≥ 48 weeks (but no more than 20% of the cohort 2 population can have received treatment for ≥ 6 years);
--has received > 80% of all scheduled treatments in the prior 48 weeks and ≥ 4 out of the prior 6 scheduled treatments;
--has received and completed the last two infusions without a drug related adverse event resulting in dose interruption;
--has received last treatment of commercial rhGAA ≥ 10 and ≤ 31 days prior to anticipated initiation of treatment with BMN 701.
• Sexually active subjects must be willing to use two known effective methods of contraception while participating in the study and for at least 4 months following the last dose of BMN 701
• Females of childbearing potential must have a negative pregnancy test at Screening and Baseline visits and be willing to have additional pregnancy tests during the study. Females considered not of
childbearing potential include those who have been in menopause at least 2 years, or had tubal ligation at least 1 year prior to Screening, or who have had total hysterectomy.
• Has ≥ 30% predicted FVC upright and < 80% predicted FVC upright.
• Has ≤ 60% predicted MIP.
• Is able to ambulate > 75 meters and < 500 meters on the 6MWT on one day conducted during the Screening visit (use of assistive devices such as walker, cane, or crutches, is permitted with consistent use throughout the study).
• Is willing and able to comply with all study procedures
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E.4 | Principal exclusion criteria |
• Use of any investigational product or investigational medical device within 4 weeks prior to Screening, or requirement for any investigational agent other than BMN 701 prior to completion of at least the first 24 weeks of all scheduled study assessments.
• Received any investigational medication for Pompe disease within the prior 12 months.
• Has a diagnosis of diabetes and/or is currently being treated with or anticipated to require treatment with hypoglycemic agents during the course of the study.
• Has been treated with any immunosuppressive medication other than glucocorticosteroids within the prior 12 months.
• Requires noninvasive ventilatory support while awake and in the upright position.
• Has previously been enrolled to this study.
• Breastfeeding at Screening or planning to become pregnant (self or partner) at any time during the study.
• Concurrent disease, medical condition, or extenuating circumstance that, in the opinion of the Investigator, might compromise subject safety, study treatment compliance and completion of the study, or the integrity of the data collected for the study.
• Has known hypersensitivity to BMN 701 or its excipients.
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E.5 End points |
E.5.1 | Primary end point(s) |
Primary: percent predicted MIP measured at the mouth by the Mueller maneuver |
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
Screening, Baseline, every 6 weeks during the 24-week treatment period;
every 12 weeks during the extension period |
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E.5.2 | Secondary end point(s) |
o percent predicted MEP
o percent predicted FVC upright
o 6MWD
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
Screening, Baseline, every 6 weeks during the 24-week treatment period;
every 12 weeks during the extension period |
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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 | Yes |
E.6.5 | Efficacy | Yes |
E.6.6 | Pharmacokinetic | Yes |
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) | 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 | No |
E.8.1.1 | Randomised | Information not present in EudraCT |
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 | Yes |
E.8.1.7.1 | Other trial design description |
single-arm, two-cohort, switch-over |
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E.8.2 | Comparator of controlled trial |
E.8.2.1 | Other medicinal product(s) | Information not present in EudraCT |
E.8.2.2 | Placebo | Information not present in EudraCT |
E.8.2.3 | Other | Information not present in EudraCT |
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 | Yes |
E.8.5.1 | Number of sites anticipated in the EEA | 22 |
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 |
Austria |
Belgium |
France |
Germany |
Italy |
Japan |
Netherlands |
Portugal |
Switzerland |
United Kingdom |
United States |
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E.8.7 | Trial has a data monitoring committee | Yes |
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 study will end after the last subject has completed the Week 264 Visit in the extension period and has completed the 30-day Safety Follow-Up Visit. |
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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 | 5 |
E.8.9.1 | In the Member State concerned months | 8 |
E.8.9.1 | In the Member State concerned days | 0 |
E.8.9.2 | In all countries concerned by the trial years | 5 |
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 |