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] - Respiratory Tract Diseases [C08] |
MedDRA Classification |
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 20.0 |
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 | No |
E.2 Objective of the trial |
E.2.1 | Main objective of the trial |
To evaluate the efficacy of LUM/IVA in subjects with CF 12 years of age and older who have at least one A455E mutation. |
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E.2.2 | Secondary objectives of the trial |
To explore the association between LUM/IVA-induced CFTR function in in vitro organoid-based measurements and clinical response to LUM/IVA in subjects with CF 12 years of age and older who have at least one A455E mutation.
To explore the effect of LUM/IVA on glucose tolerance and insulin secretion in subjects with CF 12 years of age and older who have at least one A455E mutation. |
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
1. Male or female with confirmed diagnosis of CF. The subject must have both of the following:
- One or more characteristic phenotypic features, such as chronic cough and sputum production, persistent chest radiograph abnormalities, or airway obstruction manifested by wheezing and air trapping; or a history of CF in a sibling; or a positive newborn screening test result;
-An increased sweat chloride concentration by pilocarpine iontophoresis on two or more occasions; or identification of two CF mutations; or demonstration of abnormal nasal epithelial ion transport.
2. Age 12 years or older on the date of informed consent.
3. All subjects must have an A455E mutation on at least 1 CFTR allele.
4. Forced expiratory volume in one second (FEV1) ≥30% of predicted and ≤90% of predicted at the Screening Visit, based on the Global Lung Function Initiative (GLI)-012 multi-ethnic all-age reference equations.24
5. Stable CF disease as judged by the investigator.
6. Willing to remain on a stable medication regimen for CF from 4 weeks before Day 1 through the Follow-up Visit.
7. Willing and able to comply with scheduled visits, treatment plan, study restrictions, laboratory tests, contraceptive guidelines, and other study procedures.
8. Subject (or subject’s legally appointed and authorized representative) will sign and date an informed consent form (ICF), and where appropriate, assent form. |
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E.4 | Principal exclusion criteria |
1. History of any comorbidity reviewed at the Screening Visit 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. For example:
- A history of cirrhosis with portal hypertension.
- An acute upper or lower respiratory infection, pulmonary exacerbation, or changes in therapy (including antibiotics) for pulmonary disease within 28 days before Day 1 (the first dose of study drug).
2. A G551D, G1244E, G1349D, G178R, G551S, S1251N, S1255P, S549N, S549R, or R117H mutation on at least one CFTR allele.
3. Ongoing or prior participation in an investigational drug study (including studies investigating LUM/IVA or IVA) within 30 days before the Screening Visit.
- A washout period of 5 terminal half-lives of the previous investigational study drug or 30 days, whichever is longer, must elapse before the Screening Visit. The duration of the elapsed time may be longer if required by local regulations.
- Subjects who participated in Vertex Study VX14-661-108 may not be enrolled.
- Ongoing participation in a noninterventional study (including observational studies) is permitted.
4. Pregnant or breastfeeding.
5. Any of the following abnormal laboratory values at the Screening Visit: -Hemoglobin <10 g/dL
Any 2 or more of the following:
- aspartate aminotransferase (AST) ≥3 × upper limit of normal (ULN)
- alanine aminotransferase (ALT) ≥3 × ULN
- gamma-glutamyl transpeptidase (GGT) ≥3 × ULN
- alkaline phosphatase ≥3 × ULN
ALT or AST >5 × ULN
Bilirubin >2 × ULN
Glomerular filtration rate ≤45 mL/min/1.73 m2 (calculated by the Counahan-Barratt equation).
6. History of cataract/lens opacity, or evidence of cataract/lens opacity determined to be clinically significant by the ophthalmologist or optometrist during the ophthalmologic examination at the Screening Visit (if applicable).
7. Use of strong inhibitors or strong inducers of CYP3A, including consumption of certain herbal medications (e.g., St. John’s Wort) and certain fruit and fruit juices, within 14 days before Day 1 (the first dose of study drug).
8. Sexually active subjects of reproductive potential who are not willing to follow the contraception requirements outlined in Section 11.6.5. |
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E.5 End points |
E.5.1 | Primary end point(s) |
Absolute change from baseline in percent predicted forced expiratory volume in 1 second (ppFEV1) through 8 weeks of treatment. |
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
through 8 weeks of treatment |
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E.5.2 | Secondary end point(s) |
1. Change from baseline in sweat chloride through 8 weeks of treatment.
2. Change from baseline in the Cystic Fibrosis Questionnaire Revised (CFQ-R) at 8 weeks of treatment.
3. Organoid-based measurements of LUM/IVA-induced CFTR function in vitro versus clinical outcomes.
4. Change from baseline in glucose and insulin levels during the OGTT after approximately 8 weeks of treatment. |
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
1. through 8 weeks of treatment
2. at 8 weeks of treatment
4. after approximately 8 weeks of treatment |
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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 | No |
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 | 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 | 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 | No |
E.8.1.6 | Cross over | Yes |
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 | 2 |
E.8.5 | The trial involves multiple Member States | No |
E.8.6 Trial involving sites outside the EEA |
E.8.6.1 | Trial being conducted both within and outside the EEA | No |
E.8.6.2 | Trial being conducted completely outside of the EEA | No |
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 | 0 |
E.8.9.1 | In the Member State concerned months | 8 |
E.8.9.1 | In the Member State concerned days | 27 |
E.8.9.2 | In all countries concerned by the trial years | 0 |
E.8.9.2 | In all countries concerned by the trial months | 8 |
E.8.9.2 | In all countries concerned by the trial days | 27 |