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] - Congenital, Hereditary, and Neonatal Diseases and Abnormalities [C16] |
MedDRA Classification |
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 14.0 |
E.1.2 | Level | PT |
E.1.2 | Classification code | 10011762 |
E.1.2 | Term | Cystic fibrosis |
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 evaluate the efficacy of VX-770 after 24 weeks of treatment in subjects 6 to 11 years of age with CF who have the G551D CFTR mutation on at least 1 allele |
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E.2.2 | Secondary objectives of the trial |
To evaluate the safety of VX-770 after 24 and 48 weeks of treatment in subjects 6 to 11 years of age with CF who have the G551D CFTR mutation on at least 1 allele
To evaluate the efficacy of VX-770 after 48 weeks of treatment in subjects 6 to 11 years of age with CF who have the G551D CFTR mutation on at least 1 allele
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
- Male or female with confirmed diagnosis of CF
- Must have the G551D-CFTR mutation in at least 1 allele (any known or unknown mutations allowed in second allele).
- FEV1 40% to 105% (inclusive)
- 6 to 11 years of age (inclusive)
- Weight 15 kg without shoes at Screening
- Females of child-bearing potential must have a negative serum pregnancy test at Screening
- Subjects of child-bearing potential and who are sexually active must meet the contraception requirements
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E.4 | Principal exclusion criteria |
- History of any illness or condition that, in the opinion of the investigator might confound the results of the study or pose an additional risk in administering study drug to the subject
- An acute upper or lower respiratory infection, pulmonary exacerbation, or changes in therapy for pulmonary disease within 4 weeks before Day 1 (first dose of study drug).
- Abnormal liver function
- Abnormal renal function
- History of solid organ or hematological transplantation
- History of alcohol, medication or illicit drug abuse within one year prior to Day 1 (first dose of study drug)
- Ongoing participation in another therapeutic clinical study or prior participation in an investigational drug study within 30 days prior to Screening.
- Use of inhaled hypertonic saline treatment. (Subjects who have stopped inhaled hypertonic saline treatment will be eligible to participate, but they must have undergone a wash-out period of 4 weeks prior to Day 1 [first dose of study drug])
- Concomitant use of any inhibitors or inducers of CYP 3A4
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E.5 End points |
E.5.1 | Primary end point(s) |
Part B: Absolute change from baseline in percent predicted forced expiratory volume in 1 second (%predicted FEV1) through Week 24 |
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
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E.5.2 | Secondary end point(s) |
Part A: Pharmacokinetic (PK) parameters of VX-770 (and metabolites M1 and M6, if possible)
Part B Efficacy as determined by:
• Absolute change from baseline in percent predicted FEV1 through Week 48
• Change from baseline in sweat chloride through Weeks 24 and 48
• Change from baseline in Cystic Fibrosis Questionnaire-Revised (CFQ-R) through Weeks 24 and 48
• Rate of change in weight through Weeks 24 and 48
PART A AND PART B: Safety as determined by:
Adverse events, clinical laboratory values (serum chemistry, hematology, coagulation studies, and urinalysis), standard digital
electrocardiograms (ECGs), ambulatory ECGs, vital signs, and physical examinations |
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
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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 | 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) | No |
E.8.2.2 | Placebo | Yes |
E.8.2.3 | Other | No |
E.8.2.4 | Number of treatment arms in the trial | 2 |
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.8.4.1 | Number of sites anticipated in Member State concerned | 3 |
E.8.5 | The trial involves multiple Member States | Yes |
E.8.5.1 | Number of sites anticipated in the EEA | 24 |
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 |
Australia |
Canada |
France |
Germany |
Ireland |
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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Refer to Section 17.7 of the protocol |
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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 | 0 |
E.8.9.1 | In the Member State concerned days | 0 |
E.8.9.2 | In all countries concerned by the trial years | 3 |
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 |