NCT04613128

Brief Summary

This is a prospective, multi-center observational study. The study is designed to measure the clinical effectiveness of elexacaftor, tezacaftor and ivacaftor (ETI) triple combination therapy in children (6-11 years of old) with one or more copies of the F508del mutation, study the effects of ETI across a number of CF disease manifestations, and collect specimens for future research. Subjects in the study will have one "before ETI" visit within 30 days before initiation of the therapy and five "after ETI" visits over a 24-month follow-up period. Participants who have participated in the original PROMISE Pediatric Sub-Study have the option of participating in a long-term extension with annual visits performed at the 36- and 48-month timepoints. The durability of the clinical and biological changes in the PROMISE Pediatric Sub-Study can be assessed with extended follow-up, which would enable the sub-studies to consider potential clinical consequences of the biological or physiological effects being studied. This work will help to inform long term prognosis and feasibility of certain clinical trials outcomes for interventional studies and may be useful when considering research priorities in drug development. The duration of participation for each subject is 24 months (with an additional 24 months if participants agree to the optional long-term extension). NOTE: FDA has granted approval for elexacaftor, tezacaftor and ivacaftor in the 6-11 age group.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
125

participants targeted

Target at P50-P75 for all trials

Timeline
Completed

Started Jun 2021

Longer than P75 for all trials

Geographic Reach
1 country

20 active sites

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

October 27, 2020

Completed
7 days until next milestone

First Posted

Study publicly available on registry

November 3, 2020

Completed
7 months until next milestone

Study Start

First participant enrolled

June 11, 2021

Completed
4.5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 8, 2025

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 8, 2025

Completed
Last Updated

April 27, 2026

Status Verified

April 1, 2026

Enrollment Period

4.5 years

First QC Date

October 27, 2020

Last Update Submit

April 22, 2026

Conditions

Keywords

CFCystic FibrosisCFTR ModulatorTrikaftaTriple Combination TherapyPediatricETIelexacaftor/texacaftor/ivacaftor

Outcome Measures

Primary Outcomes (6)

  • Sweat Chloride at 6 months

    Change in sweat chloride from Baseline to 6 months.

    6 months

  • Sweat Chloride at 24 months

    Change sweat chloride from Baseline to 24 months.

    24 months

  • Forced expiratory volume at one second (FEV1) at 6 months

    Change in FEV1 from Baseline to 6 months.

    6 months

  • Forced expiratory volume at one second (FEV1) at 24 months

    Change in FEV1 from Baseline to 24 months.

    24 months

  • Lung Clearance Index (LCI) at 6 months

    Change Lung Clearance Index (LCI) from baseline to 6 months.

    6 months

  • Lung Clearance Index (LCI) at 24 months

    Change Lung Clearance Index (LCI) from baseline to 24 months.

    24 months

Secondary Outcomes (6)

  • Weight at 6 Months

    6 months

  • Weight at 24 Months

    24 months

  • BMI at 6 Months

    6 months

  • BMI at 24 Months

    24 months

  • Cystic Fibrosis Questionnaire Revised (CFQ-R) at 6 Months

    6 months

  • +1 more secondary outcomes

Study Arms (1)

Pediatric

Cystic Fibrosis pediatric patients (6-11 years old) prescribed ETI CFTR modulator Therapy.

Eligibility Criteria

Age6 Years - 11 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17)
Sampling MethodNon-Probability Sample
Study Population

Cystic Fibrosis, 6-11 years old prescribed ETI.

You may qualify if:

  • Written parental informed consent and assent obtained from subject and the subject's legal guardian.
  • Be willing and able to adhere to the study visit schedule and other protocol requirements.
  • All genders 6-11 years old on Day 1.
  • Diagnosis of CF.
  • CFTR mutations consistent with the FDA labeled indication for the ETI.
  • Physician intent to prescribe the ETI.
  • Able to attempt the testing and procedures required for this study, as judged by the investigator.
  • Enrolled in the Cystic Fibrosis Foundation Patient Registry.
  • Clinically stable with no significant changes in health status within the 14 days prior to Visit 1 (and inclusive of Visit 1).

You may not qualify if:

  • Has any other condition that, in the opinion of the Site Investigator/designee, would preclude informed consent or assent, make study participation unsafe, complicate interpretation of study outcome data, or otherwise interfere with achieving the study objectives.
  • Use of any ETI within the 180 days prior to Visit 1.
  • Any acute use of antibiotics (oral, inhaled or IV) or acute use of systemic corticosteroids within the 14 days prior to Visit 1 (inclusive of Visit 1) for lower respiratory tract symptoms.
  • Initiation of any new chronic therapy (e.g., ibuprofen, Pulmozyme®, hypertonic saline, azithromycin, inhaled tobramycin, Cayston®, Kalydeco, Orkambi®, Symdeko®) within the 4 weeks prior to Visit 1 (inclusive of Visit 1).
  • Use of an investigational agent within the 28 days prior to Visit 1.
  • Use of chronic oral corticosteroids (equivalent to 10 mg. or more per day of prednisone) within the 28 days prior to Visit 1.
  • Treatment for nontuberculous mycobacterial (NTM) infection, consisting of ≥ two antibiotics (oral, IV, and/or inhaled) within the 28 days prior to Visit 1.
  • History of lung or liver transplantation,or listing for organ transplantation.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (20)

University of Alabama at Birmingham

Birmingham, Alabama, 35294, United States

Location

Stanford University Medical Center

Palo Alto, California, 94304, United States

Location

Children's Hospital Colorado

Aurora, Colorado, 80045, United States

Location

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

Chicago, Illinois, 60611, United States

Location

Riley Hospital for Children

Indianapolis, Indiana, 46202, United States

Location

University of Iowa

Iowa City, Iowa, 52242, United States

Location

John Hopkins University

Baltimore, Maryland, 21287, United States

Location

Boston Children's Hospital, Brigham & Women's Hospital

Boston, Massachusetts, 02115, United States

Location

The Minnesota Cystic Fibrosis Center

Minneapolis, Minnesota, 55455, United States

Location

Children's Mercy Kansas City

Kansas City, Missouri, 64108, United States

Location

Washington University School of Medicine

St Louis, Missouri, 63110, United States

Location

University of North Carolina at Chapel Hill

Chapel Hill, North Carolina, 27599, United States

Location

Cincinnati Children's Hospital Medical Center

Cincinnati, Ohio, 45229, United States

Location

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

Cleveland, Ohio, 44146, United States

Location

Oregon Health Sciences University

Portland, Oregon, 97239, United States

Location

Baylor College of Medicine

Houston, Texas, 77030, United States

Location

Virginia Commonwealth University

Richmond, Virginia, 23219, United States

Location

Seattle Children's Hospital

Seattle, Washington, 98105, United States

Location

University of Wisconsin

Madison, Wisconsin, 53792, United States

Location

Children's Hospital of Wisconsin

Milwaukee, Wisconsin, 53226, United States

Location

Biospecimen

Retention: SAMPLES WITH DNA

Serum, plasma, buffy coat, urine, sputum, oropharyngeal swab (throat swab), stool, sweat

MeSH Terms

Conditions

Cystic Fibrosis

Condition Hierarchy (Ancestors)

Pancreatic DiseasesDigestive System DiseasesLung DiseasesRespiratory Tract DiseasesGenetic Diseases, InbornCongenital, Hereditary, and Neonatal Diseases and AbnormalitiesInfant, Newborn, Diseases

Study Officials

  • Steven Rowe, MD

    University of Alabama at Birmingham

    PRINCIPAL INVESTIGATOR
  • David Nichols, MD

    University of Washington

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
Professor of Pediatrics, Division of Pulmonary and Sleep Medicine, University of Washington School of Medicine Adjunct Professor, Biostatistics, University of Washington School of Medicine Co-Executive Director, Cystic Fibrosis Therapeutics Development

Study Record Dates

First Submitted

October 27, 2020

First Posted

November 3, 2020

Study Start

June 11, 2021

Primary Completion

December 8, 2025

Study Completion

December 8, 2025

Last Updated

April 27, 2026

Record last verified: 2026-04

Data Sharing

IPD Sharing
Will not share

Locations