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A Phase 3 Study of VX-659 Combination Therapy in Subjects With Cystic Fibrosis Heterozygous for the F508del Mutation and a Minimal Function Mutation (F/MF)

Phase 3
Completed
Conditions
Cystic Fibrosis
Interventions
Drug: Placebo
Drug: IVA
Registration Number
NCT03447249
Lead Sponsor
Vertex Pharmaceuticals Incorporated
Brief Summary

This study will evaluate the efficacy of VX-659 in triple combination (TC) with tezacaftor (TEZ) and ivacaftor (IVA) in subjects with cystic fibrosis (CF) who are heterozygous for F508del and a minimal function mutation (F/MF subjects).

Detailed Description

Not available

Recruitment & Eligibility

Status
COMPLETED
Sex
All
Target Recruitment
385
Inclusion Criteria
  • Heterozygous for F508del and an MF mutation (as defined in the protocol)
  • Forced expiratory volume in 1 second (FEV1) value ≥40% and ≤90% of predicted mean for age, sex, and height

Key

Exclusion Criteria
  • Clinically significant cirrhosis with or without portal hypertension
  • Lung infection with organisms associated with a more rapid decline in pulmonary status
  • Solid organ or hematological transplantation

Other protocol defined Inclusion/Exclusion criteria may apply

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
PlaceboPlaceboParticipants who received placebo matched to VX-659/TEZ/IVA for 24 weeks in the TC treatment period.
VX-659/TEZ/IVA TCVX-659/TEZ/IVAParticipants who received VX-659 240 mg/TEZ 100 mg/IVA 150 mg as fixed-dose combination (FDC) tablets in the morning and IVA 150 mg as mono tablet in the evening for 24 weeks in the TC treatment period.
VX-659/TEZ/IVA TCIVAParticipants who received VX-659 240 mg/TEZ 100 mg/IVA 150 mg as fixed-dose combination (FDC) tablets in the morning and IVA 150 mg as mono tablet in the evening for 24 weeks in the TC treatment period.
Primary Outcome Measures
NameTimeMethod
Absolute Change in Percent Predicted Forced Expiratory Volume in 1 Second (ppFEV1)From Baseline at Week 4

FEV1 is the volume of air that can forcibly be blown out in one second, after full inspiration.

Secondary Outcome Measures
NameTimeMethod
Absolute Change in Percent Predicted Forced Expiratory Volume in 1 Second (ppFEV1)From Baseline through Week 24

FEV1 is the volume of air that can forcibly be blown out in one second, after full inspiration.

Number of Pulmonary Exacerbations (PEx)From Baseline through Week 24

Pulmonary exacerbation was defined as the treatment with new or changed antibiotic therapy (intravenous, inhaled, or oral) for greater than or equal to 4 sinopulmonary signs/symptoms.

Absolute Change in Sweat Chloride (SwCl)From Baseline through Week 24

Sweat samples were collected using an approved collection device.

Absolute Change in Cystic Fibrosis Questionnaire Revised (CFQ-R) Respiratory Domain ScoreFrom Baseline at Week 4

The CFQ-R is a validated participant-reported outcome measuring health-related quality of life for participants with cystic fibrosis. Respiratory domain assessed respiratory symptoms, score range: 0-100; higher scores indicating fewer symptoms and better health-related quality of life.

Absolute Change in Body Mass Index (BMI)From Baseline at Week 24

BMI was defined as weight in kilogram (kg) divided by height in square meter (m\^2).

Absolute Change in Sweat ChlorideFrom Baseline at Week 4

Sweat samples were collected using an approved collection device.

Time-to-first Pulmonary Exacerbation (PEx)From Baseline through Week 24

Pulmonary exacerbation was defined as the treatment with new or changed antibiotic therapy (intravenous, inhaled, or oral) for greater than or equal to 4 sinopulmonary signs/symptoms.

Absolute Change in BMI Z-score for Participants <=20 Years of Age at BaselineFrom Baseline at Week 24

BMI was defined as weight in kg divided by height in m\^2. z-score is a statistical measure to describe whether a mean was above or below the standard. BMI, adjusted for age and sex, was analyzed as BMI-for-age z-score. A z-score of 0 is equal to the mean and is considered normal. Lower numbers indicate values lower than the mean and higher numbers indicate values higher than the mean. Higher values are indicative of higher BMI.

Absolute Change in Body WeightFrom Baseline at Week 24
Safety and Tolerability as Assessed by Number of Participants With Treatment-Emergent Adverse Events (AEs) and Serious Adverse Events (SAEs)From first dose of study drug in TC treatment period up to 28 days after last dose of study drug or to the completion of study participation date, whichever occurs first (up to 28 weeks)
Observed Pre-dose Concentration (Ctrough) of VX-659, TEZ, M1-TEZ, and IVAPre-dose on Week 4, 8, 12, and 16

Trial Locations

Locations (101)

Children's Hospital of Pittsburgh of University of Pittsburgh Medical Center

🇺🇸

Pittsburgh, Pennsylvania, United States

Stanford University

🇺🇸

Palo Alto, California, United States

Institute for Respiratory Health Inc./ Sir Charles Gairdner Hospital

🇦🇺

Nedlands, Australia

Lindenhofspital - Quartier Bleu

🇨🇭

Bern, Switzerland

Hospital Universitario Virgen del Rocio

🇪🇸

Sevilla, Spain

Hospital Universitario 12 de Octubre

🇪🇸

Madrid, Spain

University of Tennessee Medical Center - Adult Cystic Fibrosis Clinic

🇺🇸

Knoxville, Tennessee, United States

Sanford Research/ USD

🇺🇸

Sioux Falls, South Dakota, United States

Providence Pediatric Pulmonary & Allergy/Immunology Clinic

🇺🇸

Spokane, Washington, United States

Pneumologische Praxis Pasing

🇩🇪

Muenchen, Germany

Hadassah Medical Organization

🇮🇱

Jerusalem, Israel

St. Michael's Hospital

🇨🇦

Toronto, Canada

Clinical Research of Charlotte

🇺🇸

Charlotte, North Carolina, United States

Pediatric Pulmonary Unit Rambam Medical Center

🇮🇱

Haifa, Israel

Hospital Universitari Vall d Hebron

🇪🇸

Barcelona, Spain

Royal Adelaide Hospital

🇦🇺

Adelaide, Australia

The Alfred Hospital

🇦🇺

Melbourne, Victoria, Australia

Hospital Universitario y Politecnico La Fe

🇪🇸

Valencia, Spain

Universitatsklinikum Schleswig-Holstein, Klinik fur Kinder- und Jugendmedizin

🇩🇪

Lubeck, Germany

Royal Brisbane & Women's Hospital

🇦🇺

Herston, Australia

John Hunter Hospital & Hunter Medical Research Institute

🇦🇺

New Lambton Heights, Australia

Ruhrlandklinik Westdeutsches Lungenzentrum am Klinikum Essen

🇩🇪

Essen, Germany

Hospital Universitario Infantil La Paz

🇪🇸

Madrid, Spain

SUNY Upstate Medical University

🇺🇸

Syracuse, New York, United States

Drexel University College of Medicine/ Drexel Adult Cystic Fibrosis Center

🇺🇸

Philadelphia, Pennsylvania, United States

Coporacio Sanitaria Parc Tauli

🇪🇸

Sabadell, Spain

Lady Davis Carmel Medical Center

🇮🇱

Haifa, Israel

University Hospital Cologne

🇩🇪

Koeln, Germany

Prince Charles Hospital

🇦🇺

Chermside, Australia

Medizinische Hochschule Hannover

🇩🇪

Hannover, Germany

The Leeds Teaching Hospitals NHS Trust, St. James University Hospital

🇬🇧

Leeds, United Kingdom

Queen Elizabeth II Health Sciences Center

🇨🇦

Halifax, Nova Scotia, Canada

Liverpool Heart and Chest Hospital

🇬🇧

Liverpool, United Kingdom

Stollery Children's Hospital

🇨🇦

Edmonton, Alberta, Canada

Cook Children's Medical Center

🇺🇸

Fort Worth, Texas, United States

Charite Paediatric Pulmonology Department

🇩🇪

Berlin, Germany

Clinic of J.W Goethe University

🇩🇪

Frankfurt, Germany

Papworth Hospital NHS Foundation Trust, Papworth Everard

🇬🇧

Cambridge, United Kingdom

Hospital Universitari Vall d'Hebron Servicio de Broncoscopia

🇪🇸

Barcelona, Spain

Princess Margaret Hospital for Children

🇦🇺

Subiaco, Australia

Queen Elizabeth University Hospital

🇬🇧

Glasgow, United Kingdom

University Hospital Llandough

🇬🇧

Penarth, United Kingdom

Boston Children's Hospital

🇺🇸

Boston, Massachusetts, United States

University of Miami/ Miller School of Medicine

🇺🇸

Miami, Florida, United States

Cincinnati Children's Hospital Medical Center

🇺🇸

Cincinnati, Ohio, United States

Indiana Clinical Research Center, IU Health University Hospital

🇺🇸

Indianapolis, Indiana, United States

Baylor College of Medicine

🇺🇸

Houston, Texas, United States

Seattle Children's Hospital

🇺🇸

Seattle, Washington, United States

Juliane Marie Center, Rigshospitalet

🇩🇰

Copenhagen, Denmark

University of Minnesota

🇺🇸

Minneapolis, Minnesota, United States

University of Alabama at Birmingham

🇺🇸

Birmingham, Alabama, United States

Duke University Medical Center

🇺🇸

Durham, North Carolina, United States

Respiratory Diseases of Children and Adolescents

🇺🇸

Oklahoma City, Oklahoma, United States

Oregon Health & Science University

🇺🇸

Portland, Oregon, United States

Vanderbilt University Medical Center

🇺🇸

Nashville, Tennessee, United States

University of Utah / Primary Children's Medical Center

🇺🇸

Salt Lake City, Utah, United States

Children's University Hospital Temple Street

🇮🇪

Dublin, Ireland

Beaumont Hospital

🇮🇪

Dublin, Ireland

Instytut Matki i Dziecka

🇵🇱

Warsaw, Poland

University Hospital Limerick

🇮🇪

Limerick, Ireland

Kinderspital Zuerich

🇨🇭

Zürich, Switzerland

University of Mississippi Medical Center

🇺🇸

Jackson, Mississippi, United States

Cork University Hospital

🇮🇪

Dublin, Ireland

Our Lady's Children's Hospital

🇮🇪

Dublin, Ireland

National University of Ireland

🇮🇪

Galway, Ireland

Sheba Medical Center

🇮🇱

Tel HaShomer, Israel

St. Vincent's University Hospital

🇮🇪

Dublin, Ireland

Universitaetsspital Zuerich

🇨🇭

Zürich, Switzerland

Nottingham University Hospitals NHS Trust, Queens Medical Center

🇬🇧

Nottingham, United Kingdom

Klinikum Innenstadt, University of Munich

🇩🇪

München, Germany

Sydney Children's Hospital, Randwick

🇦🇺

Randwick, Australia

Children's Hospital Colorado

🇺🇸

Aurora, Colorado, United States

Hartford Health

🇺🇸

Hartford, Connecticut, United States

St. Luke's CF Center of Idaho

🇺🇸

Boise, Idaho, United States

Johns Hopkins All Children's Hospital Outpatient Care Center

🇺🇸

Saint Petersburg, Florida, United States

Nicklaus Children's Hospital

🇺🇸

Miami, Florida, United States

The University of Iowa Hospitals and Clinics

🇺🇸

Iowa City, Iowa, United States

Kentucky Clinic

🇺🇸

Lexington, Kentucky, United States

The Johns Hopkins Hospital

🇺🇸

Baltimore, Maryland, United States

Helen DeVos Children's Hospital CF Center

🇺🇸

Grand Rapids, Michigan, United States

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

🇺🇸

Saint Louis, Missouri, United States

Albany Medical College

🇺🇸

Albany, New York, United States

Dartmouth Hitchcock Medical Center, Lebanon

🇺🇸

Lebanon, New Hampshire, United States

Rutgers-Robert Wood Johnson Medical School

🇺🇸

New Brunswick, New Jersey, United States

Lung and Cystic Fibrosis Center at Women and Children's Hospital of Buffalo

🇺🇸

Buffalo, New York, United States

Northwell Health, Long Island Jewish Medical Center

🇺🇸

New Hyde Park, New York, United States

Columbia University Medical Center

🇺🇸

New York, New York, United States

Children's Foundation Research Center/ Le Bonheur Children's Hospital

🇺🇸

Memphis, Tennessee, United States

Mukeviszidose-Zentrum am Universitatsklinikum Jena, Klinik fuer Kinder - und Jugendmedizin

🇩🇪

Jena, Germany

Schneider Children's Medical Center

🇮🇱

Petah tikva, Israel

Wythenshawe Hospital

🇬🇧

Manchester, United Kingdom

Royal Brompton & Harefield NHS Foundation Trust, Royal Brompton Hospital

🇬🇧

London, United Kingdom

Cystic Fibrosis Center of Chicago

🇺🇸

Glenview, Illinois, United States

Advocate Children's Hospital - Park Ridge/ North Suburban Pulmonary and Critical Care Consultants

🇺🇸

Niles, Illinois, United States

University of Massachusetts Memorial Medical Center

🇺🇸

Worcester, Massachusetts, United States

The Newcastle Upon Tyne Hospitals NHS Foundation Trust, The Royal Victoria Infirmary

🇬🇧

Newcastle Upon Tyne, United Kingdom

Children's Mercy Hospital

🇺🇸

Kansas City, Missouri, United States

Kosair Charities Pediatric Clinical Research Unit

🇺🇸

Louisville, Kentucky, United States

Yale New Haven Medical Center

🇺🇸

New Haven, Connecticut, United States

Arnold Palmer Hospital

🇺🇸

Orlando, Florida, United States

University of Michigan Health System

🇺🇸

Ann Arbor, Michigan, United States

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