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Evaluation of VX-121/Tezacaftor/Deutivacaftor in Cystic Fibrosis (CF) Participants 1 Through 11 Years of Age

Phase 3
Recruiting
Conditions
Cystic Fibrosis
Interventions
Registration Number
NCT05422222
Lead Sponsor
Vertex Pharmaceuticals Incorporated
Brief Summary

The purpose of this study is to evaluate the pharmacokinetics, safety, tolerability and efficacy of VX-121/tezacaftor/deutivacaftor (VX-121/TEZ/D-IVA) in CF participants with at least 1 triple combination responsive (TCR) mutation in the cystic fibrosis transmembrane conductance regulator (CFTR) gene.

Detailed Description

Not available

Recruitment & Eligibility

Status
RECRUITING
Sex
All
Target Recruitment
210
Inclusion Criteria
  • Participants with stable CF and at least 1 TCR mutation (including F508del) in the CFTR gene

Key

Exclusion Criteria
  • History of solid organ, hematological transplantation, or cancer
  • Hepatic cirrhosis with portal hypertension, moderate hepatic impairment (Child Pugh Score 7 to 9), or severe hepatic impairment (Child Pugh Score 10 to 15)
  • Lung infection with organisms associated with a more rapid decline in pulmonary status

Other protocol defined Inclusion/Exclusion criteria may apply.

Study & Design

Study Type
INTERVENTIONAL
Study Design
SEQUENTIAL
Arm && Interventions
GroupInterventionDescription
Part A: VX-121/TEZ/D-IVAVX-121/TEZ/D-IVAParticipants will receive VX-121/TEZ/D-IVA in the morning.
Part B: VX-121/TEZ/D-IVAVX-121/TEZ/D-IVAParticipants will receive VX-121/TEZ/D-IVA in the morning with the dose(s) to be based on the outcome of Part A.
Primary Outcome Measures
NameTimeMethod
Part A: Safety and Tolerability as Assessed by Number of Participants With Adverse Events (AEs) and Serious Adverse Events (SAEs)From Day 1 up to Day 50
Part B: Safety and Tolerability as Assessed by Number of Participants With Adverse Events (AEs) and Serious Adverse Events (SAEs)From Day 1 up to Week 28
Part A: Observed Pre-dose Plasma Concentration (Ctrough) of VX-121, TEZ, D-IVA, and Relevant MetabolitesFrom Day 1 up to Day 22
Secondary Outcome Measures
NameTimeMethod
Part B: Absolute Change in Body Mass Index (BMI)From Baseline at Week 24
Part B: Absolute Change in BMI-for-age Z-scoreFrom Baseline at Week 24
Part B: Absolute Change in Weight-for-age Z-scoreFrom Baseline at Week 24
Part B: Observed Pre-dose Plasma Concentration (Ctrough) of VX-121, TEZ, D-IVA, and Relevant MetabolitesFrom Day 1 up to Week 16
Part B: Absolute Change in Percent Predicted Forced Expiratory Volume (ppFEV1)From Baseline Through Week 24
Part B: Proportion of Participants With SwCl <30 mmol/LFrom Baseline Through Week 24
Part B: Number of CF-Related HospitalizationsFrom Baseline Through Week 24
Part B: Absolute Change in WeightFrom Baseline at Week 24
Part B: Absolute Change in Weight-for-lengthFrom Baseline at Week 24
Part B: Absolute Change in HeightFrom Baseline at Week 24
Part B: Absolute Change in Height-for-age Z-scoreFrom Baseline at Week 24
Part B: Absolute Change in Sweat Chloride (SwCl)From Baseline Through Week 24
Part B: Drug Acceptability Assessment Using Modified Facial Hedonic ScaleAt Day 1 and Week 24
Part B: Number of Pulmonary Exacerbation (PEx)From Baseline Through Week 24
Part B: Absolute Change in Cystic Fibrosis Questionnaire-Revised (CFQ-R) Respiratory Domain (RD) ScoreFrom Baseline Through Week 24
Part B: Absolute Change in Weight-for-length Z-scoreFrom Baseline at Week 24
Part B: Absolute Change in LengthFrom Baseline at Week 24
Part B: Absolute Change in Length-for-age Z-scoreFrom Baseline at Week 24
Part B: Proportion of Participants With SwCl <60 millimole per liter (mmol/L)From Baseline Through Week 24

Trial Locations

Locations (37)

The Hospital for Sick Children

🇨🇦

Toronto, Canada

Charité Universitätsmedizin BerlinX

🇩🇪

Berlin, Germany

Starship Children's Hospital

🇳🇿

Grafton, New Zealand

Stanford University Clinical and Translational Research Unit

🇺🇸

Palo Alto, California, United States

Children's Hospital of Orange County

🇺🇸

Orange, California, United States

Children's Hospital of Colorado

🇺🇸

Aurora, Colorado, United States

The Children's Mercy Hospital

🇺🇸

Kansas City, Missouri, United States

Medizinische Hochschule Hannover

🇩🇪

Hannover, Germany

The Emory Clinic / Children's Healthcare of Atlanta at Egleston

🇺🇸

Atlanta, Georgia, United States

Ann & Robert H. Lurie Children's Hospital of Chicago

🇺🇸

Chicago, Illinois, United States

Riley Hospital for Children at Indiana University Health

🇺🇸

Indianapolis, Indiana, United States

Boston Children's Hospital

🇺🇸

Boston, Massachusetts, United States

Children's Respiratory and Critical Care Specialists, P.A., Children's Hospitals and Clinics of Minnesota

🇺🇸

Minneapolis, Minnesota, United States

Washington University School of Medicine / St. Louis Children's Hospital

🇺🇸

Saint Louis, Missouri, United States

Cohen Children's Medical Center

🇺🇸

Lake Success, New York, United States

Rainbow Babies and Children's Hospital/University Hospitals Cleveland Medical Center

🇺🇸

Cleveland, Ohio, United States

Nationwide Children's Hospital

🇺🇸

Columbus, Ohio, United States

Oregon Health & Science University

🇺🇸

Portland, Oregon, United States

Cincinnati Children's Hospital Medical Center

🇺🇸

Cincinnati, Ohio, United States

UPMC Children's Hospital of Pittsburgh

🇺🇸

Pittsburgh, Pennsylvania, United States

Texas Children's Hospital - Wallace Tower

🇺🇸

Houston, Texas, United States

Vermont Lung Center

🇺🇸

Colchester, Vermont, United States

American Family Childrens Hospital

🇺🇸

Madison, Wisconsin, United States

The Kids Research Institute Australia

🇦🇺

Nedlands, Australia

Women's and Children's Hospital

🇦🇺

North Adelaide, Australia

The Royal Children's Hospital

🇦🇺

Parkville, Australia

Queensland Children's Hospital

🇦🇺

South Brisbane, Australia

British Columbia Children's Hospital

🇨🇦

Vancouver, Canada

CHU Lyon - Hopital Femme Mere-Enfant

🇫🇷

Bron Cedex, France

Hopital Necker, Enfants Malades

🇫🇷

Paris Cedex 15, France

Kinderklinik III, Abt. fur Pneumologie

🇩🇪

Essen, Germany

Erasmus Medical Center / Sophia Children's Hospital

🇳🇱

Rotterdam, Netherlands

Sahlgrenska Universitetssjukhuset

🇸🇪

Göteborg, Sweden

Inselspital - Universitaetsspital Bern

🇨🇭

Bern, Switzerland

Kinderspital Zurich

🇨🇭

Zurich, Switzerland

Children and Young Adults Research Unit

🇬🇧

Cardiff, United Kingdom

Great Ormond Street Hospital for Children

🇬🇧

London, United Kingdom

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