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 | Body processes [G] - Genetic Phenomena [G05] |
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 | Yes |
E.2 Objective of the trial |
E.2.1 | Main objective of the trial |
To assess changes in sweat chloride concentration as a biomarker of CFTR ion channel function for dual combination (GLPG3067 and GLPG2222) and triple combination (GLPG3067, GLPG2222, and GLPG2737) treatment, in adult CF subjects who are homozygous for CFTR mutation F508del, and in adult CF subjects who are heterozygous for CFTR mutation F508del (with a mutation on the second allele, which is non-responsive to potentiator). |
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E.2.2 | Secondary objectives of the trial |
- To assess changes in pulmonary function (ppFEV1) for dual combination (GLPG3067 and GLPG2222) and triple combination (GLPG3067, GLPG2222, and GLPG2737) treatment, in adult CF subjects who are homozygous for CFTR mutation F508del, and in adult CF subjects who are heterozygous for CFTR mutation F508del (with a mutation on the second allele, which is non-responsive to potentiator)
- To assess safety and tolerability of dual combination (GLPG3067 and GLPG2222) and triple combination (GLPG3067, GLPG2222, and GLPG2737) treatment in adult CF subjects
- To assess changes in the respiratory domain of the CFQ-R for dual combination (GLPG3067 and GLPG2222) and triple combination (GLPG3067, GLPG2222, and GLPG2737) treatment in adult CF subjects
- To assess the PK of GLPG3067, GLPG2222, and GLPG2737 (including its active metabolite G1125498 [M4]), when administered in dual and triple combination.
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E.2.3 | Trial contains a sub-study | Yes |
E.2.3.1 | Full title, date and version of each sub-study and their related objectives |
Subjects have the option to participate in a sub-study, in which blood samples for rich PK analysis of GLPG3067, GLPG2222, and GLPG2737 and its active metabolite G1125498 (M4) will be collected at pre-determined time points. In a second sub-study, one blood sample for exploratory pharmacogenomic analysis will be taken. Subjects need to give separate consent for these optional sub-studies. |
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E.3 | Principal inclusion criteria |
- Male or female subject ≥18 years of age
- A confirmed clinical diagnosis of CF as documented in the subject’s medical records.
- Eligible CFTR genotype (confirmed during screening period):
Part I: homozygous for the F508del CFTR mutation
Part II: heterozygous for the F508del CFTR mutation, i.e., a mutation on the second allele, which is non-responsive to potentiator.
- Body mass index (BMI) ≥18 kg/m² during screening.
- Stable concomitant medication for CF (including pulmonary CF, diabetes, pancreatic enzymes, as applicable) in the opinion of the investigator, for at least 4 weeks prior to the first IMP administration, and planned continuation of the same concomitant medication regimen for the duration of the study (including the follow-up visit).
- Forced expiratory volume in 1 second (FEV1) ≥40% and ≤90% of predicted normal for age, sex and height (pre- or post-bronchodilator) during screening.
- Sweat chloride concentration ≥60 mmol/L at screening.
Reference is made to the protocol for a complete overview of the
inclusion criteria. |
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E.4 | Principal exclusion criteria |
- History of clinically meaningful unstable or uncontrolled chronic disease that makes the subject unsuitable for inclusion in the study in the opinion of the investigator. This includes CF pulmonary disease with frequent exacerbations and short periods of stability (e.g., <3 months).
- Worsened pulmonary status or respiratory tract infection (including rhinosinusitis) requiring a change in therapy within 4 weeks prior to the first IMP administration.
- Need for supplemental oxygen during the day, and >2 liter per minute while sleeping.
- History of hepatic cirrhosis with portal hypertension (e.g., signs/symptoms of splenomegaly, esophageal varices).
- Use of any moderate or strong inhibitor(s) or inducer(s) of cytochrome P450 (CYP) type 3A4 (CYP3A4) within 4 weeks prior to the first IMP administration (e.g., clarithromycin, itraconazole, ketoconazole, telithromycin, rifampin, carbamazepine) (see Appendix 2).
- Use of CFTR modulator therapy (e.g., lumacaftor, tezacaftor and/or ivacaftor) within 4 weeks prior to the first IMP administration.
- Abnormal liver function test during screening, defined as AST and/or ALT and/or alkaline phosphatase (ALP) and/or gamma-glutamyl transferase (GGT) ≥3x the upper limit of normal (ULN), and/or total bilirubin >1.5 times ULN.
Reference is made to the protocol for a complete overview of the
exclusion criteria. |
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E.5 End points |
E.5.1 | Primary end point(s) |
Absolute change from baseline (pre-morning dose on Day 1) in sweat chloride concentration, for the dual combination treatment (Day 15) and for each triple combination treatment (Days 29, 43, and 57). |
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
Various timepoints during the trial as specified in the protocol. |
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E.5.2 | Secondary end point(s) |
- Absolute change from baseline (pre-morning dose on Day 1) in ppFEV1 for the dual combination treatment (Day 15) and for each triple combination treatment (Days 29, 43, and 57).
- Relative change from baseline (pre-morning dose on Day 1) in ppFEV1 for the dual combination treatment (Day 15) and for each triple combination treatment (Days 29, 43, and 57).
- Safety and tolerability, assessed by the number of subjects with adverse events (AEs) and serious adverse events (SAEs)
- Absolute change from baseline (pre-morning dose on Day 1) in the respiratory domain of the CFQ-R, for the dual combination treatment (Day 15) and for the triple combination treatment (Day 57)
- Plasma concentrations of GLPG3067, GLPG2222, and GLPG2737 (including its active metabolite G1125498 [M4]). |
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
Various timepoints during the trial as specified in the protocol. |
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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 | Yes |
E.6.7 | Pharmacodynamic | Yes |
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 | 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 | 9 |
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 | 5 |
E.8.5 | The trial involves multiple Member States | Yes |
E.8.5.1 | Number of sites anticipated in the EEA | 26 |
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 |
Denmark |
France |
Germany |
Ireland |
Netherlands |
New Zealand |
Serbia |
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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E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | |
E.8.9.1 | In the Member State concerned months | 10 |
E.8.9.1 | In the Member State concerned days | |
E.8.9.2 | In all countries concerned by the trial months | 10 |