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Cystic FibrosisPhase 2NCT00865904

Study of VX-809 in Cystic Fibrosis Subjects With the ∆F508-CFTR Gene Mutation

A Phase 2 study testing VX-809 in people with Cystic Fibrosis, run by Vertex Pharmaceuticals Incorporated at 25 sites in 5 countries.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The primary objective of the study was to evaluate the safety and tolerability of VX-809 in participants with cystic fibrosis (CF) who are homozygous for the F508del mutation on the CF transmembrane conductance regulator (CFTR) gene. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Cystic Fibrosis
What is being tested?
VX-809
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
93 participants
Where
25 sitesin 5 countries
Study dates
Mar 2009to Dec 2009
Phase
Phase 2
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Confirmed diagnosis of CF with ∆F508-CFTR mutation in both alleles
  • Forced expiratory volume in 1 second (FEV1) greater than or equal to (>=) 40 percent (%) of predicted normal for age, gender, and height
  • Weight >=40 kilograms (kg) and body mass index greater than or equal to 18.5 kilogram per square meter (kg/m^2)
  • Screening laboratory values, tests, and physical examination within acceptable ranges
  • Negative pregnancy test (for women of child-bearing potential)
  • Able and willing to follow contraceptive requirements
  • Willing to remain on a stable medication regimen for the duration of study participation

Who cannot join

  • History of any illness, or any ongoing acute illness, that could impact the safety of the study participant or may confound results of study
  • Pulmonary exacerbation or changes in therapy for pulmonary disease within 14 days before receiving the first dose of study drug
  • Impaired hepatic or renal function
  • History of organ or hematological transplant

Trial locations and contacts

25 sites in 5 countries.

25 sites in 5 countries

United States18 sites
  • Study site

    Atlanta, Georgia

  • Study site

    Aurora, Colorado

  • Study site

    Baltimore, Maryland

  • Study site

    Birmingham, Alabama

  • Study site

    Boston, Massachusetts

  • Study site

    Chapel Hill, North Carolina

  • Study site

    Chicago, Illinois

  • Study site

    Cincinnati, Ohio

  • Study site

    Cleveland, Ohio

  • Study site

    Columbus, Ohio

  • Study site

    Iowa City, Iowa

  • Study site

    Minneapolis, Minnesota

  • Study site

    Palo Alto, California

  • Study site

    Philadelphia, Pennsylvania

  • Study site

    Pittsburgh, Pennsylvania

  • Study site

    San Diego, California

  • Study site

    Seattle, Washington

  • Study site

    St Louis, Missouri

Other trials in United States

Belgium2 sites
  • Study site

    Brussels

  • Study site

    Leuven

Other trials in Belgium

Germany2 sites
  • Study site

    Cologne

  • Study site

    Hanover

Other trials in Germany

Netherlands2 sites
  • Study site

    Rotterdam

  • Study site

    Utrecht

Other trials in Netherlands

Canada1 site
  • Study site

    Toronto, Ontario

Other trials in Canada

About this study

Official title: A Randomized, Double-Blind, Placebo-Controlled, Multiple Dose Study of VX-809 to Evaluate Safety, Pharmacokinetics, and Pharmacodynamics of VX-809 in Cystic Fibrosis Subjects Homozygous for the ∆F508-CFTR Gene Mutation

The primary objective of the study was to evaluate the safety and tolerability of VX-809 in participants with cystic fibrosis (CF) who are homozygous for the F508del mutation on the CF transmembrane conductance regulator (CFTR) gene.

Read the detailed description

This was a Phase 2, randomized, double-blind, placebo-controlled, multiple-dose study of orally-administered VX-809 in participants with CF who are homozygous for the specific CFTR mutation known as ∆F508 or F508del. Enrollment was planned for 90 participants at approximately 20 centers. Participants were planned to be randomized in a 4:1 ratio to receive 1 of 4 doses of VX-809 or placebo once a day for 28 days in a parallel design. Participants were outpatients during the study, except for overnight stays on Day 1 and 28.

Conditions
Cystic Fibrosis
Being tested
VX-809, Placebo
Keywords
∆F508, F508del, Cystic Fibrosis Transmembrane Conductance Regulator, CFTR, Pancreatic diseases, Lung diseases, Genetic disease, inborn, Infant, newborn, diseases
Medical subject headings
Cystic Fibrosis, Pancreatic Diseases, Lung Diseases, Genetic Diseases, Inborn, Infant, Newborn, Diseases

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • VX-809Drug

    Capsules

  • PlaceboDrug

    Placebo matched to VX-809 capsules.

Study groups in NCT00865904
Study groupRoleWhat they receive
PlaceboPlacebo comparatorPlacebo matched to VX-809 capsule orally once daily for 28 days.
Receives: Drug: Placebo
VX-809, 25 mgExperimentalVX-809, 25 milligram (mg) capsule orally once daily for 28 days.
Receives: Drug: VX-809
VX-809, 50 mgExperimentalVX-809, 50 mg capsule orally once daily for 28 days.
Receives: Drug: VX-809
VX-809, 100 mgExperimentalVX-809, 100 mg capsule orally once daily for 28 days.
Receives: Drug: VX-809
VX-809, 200 mgExperimentalVX-809, 200 mg capsule orally once daily for 28 days.
Receives: Drug: VX-809

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Safety and Tolerability Based on Adverse Events (AEs)

    AE: any untoward medical occurrence in a participant during the study; the event does not necessarily have a causal relationship with the treatment. This includes any newly occurring event or previous condition that has increased in severity or frequency after the informed consent form is signed. AE includes serious as well as Non-serious AEs. Serious adverse event (SAE) (subset of AE): medical event or condition, which falls into any of the following categories, regardless of its relationship to the study drug: death, life threatening adverse experience, in-patient hospitalization/prolongation of hospitalization, persistent/significant disability or incapacity, congenital anomaly/birth defect, important medical event. Number of participants with AEs and SAEs are reported. An AE that started at or after initial dosing of study drug, or increased in severity after initial dosing of study drug visit is considered treatment-emergent.

    Measured: Up to 14 days after last dose (last dose = Day 28)

Secondary outcomes (9)
  1. Change From Baseline in Forced Expiratory Volume in 1 Second (FEV1) at Day 28

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

    Measured: Baseline, Day 28

  2. Change From Baseline in Percent Predicted FEV1 at Day 28

    FEV1 is the volume of air that can forcibly be blown out in one second, after full inspiration. Predicted FEV1 (for age, gender, and height) was calculated using the Knudson method.

    Measured: Baseline, Day 28

  3. Change From Baseline in Forced Vital Capacity (FVC) at Day 28

    FVC is the volume of air that can be forcibly exhaled from the lungs after taking the deepest breath possible.

    Measured: Baseline, Day 28

  4. Change From Baseline in Forced Expiratory Flow Over the Middle Half of the FVC (FEF25-75) at Day 28

    FEF25-75 is total volume of air exhaled from the lungs over the middle half of the FVC test, expressed as liters per second (L/sec).

    Measured: Baseline, Day 28

  5. Change From Baseline in Sweat Chloride at Day 28

    Sweat samples were collected using an approved Macroduct (Wescor) collection device. A volume of greater than or equal to (>=) 15 microliter was required for determination of sweat chloride.

    Measured: Baseline, Day 28

  6. Change From Baseline in Nasal Potential Difference (NPD) of Zero Chloride Plus Isoproterenol Response at Day 28

    Nasal potential difference (NPD) provides a direct and sensitive evaluation of sodium and chloride transport in secretory epithelial cells via assessment of transepithelial bioelectric properties. NPD under conditions of zero chloride concentration perfusion solution in the presence of isoproterenol is reported.

    NPDs were performed according to Cystic Fibrosis Foundation Therapeutics Development Network (CFFT TDN) Standard Operating Procedure (SOP) 528.00 "Standardization of Measurement of Nasal Membrane Transepithelial Potential Difference (NPD) - electronic data capture (EDC) and Perfusion or Perfusion-Free Probe".

    Measured: Baseline, Day 28

  7. Change From Baseline in Cystic Fibrosis Questionnaire-Revised (CFQ-R) Domain Scores at Day 28

    The CFQ-R is a validated participant-reported outcome measuring health-related quality of life for participants with cystic fibrosis. CFQ-R domains include: Body, Digestion, Eat, Emotion, Health Perceptions, Physical, Respiratory, Role, Social, Treatment Burden, Vitality, and Weight. Individual domain score range: 0-100; higher scores indicating fewer symptoms and better health-related quality of life.

    Measured: Baseline, Day 28

  8. Maximum Plasma Concentration (Cmax) of VX-809

    Only participants who received VX-809 were analyzed for this outcome measure.

    Measured: Day 1 (pre dose, 0.75, 1.5, 3, 4, 6, 9, 12, and 24 hours post-dose), Day 28 (pre dose, 0.75, 1.5, 3, 4, 6, 9, 12, 24, and 30-60 hours post dose)

  9. Area Under the Concentration Versus Time Curve From Time 0 to 24 Hours (AUC0-24) of VX-809

    Only participants who received VX-809 were analyzed for this outcome measure.

    Measured: Day 1 (pre dose, 0.75, 1.5, 3, 4, 6, 9, 12, and 24 hours post-dose), Day 28 (pre dose, 0.75, 1.5, 3, 4, 6, 9, 12, and 24 hours post dose)

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted19 Mar 2009 (estimated)
  2. Study startMar 2009
  3. Primary completionDec 2009
  4. Study completionDec 2009

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Triple blind
Who is masked
Participant, Care provider, Investigator
Enrolment
93 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00865904
Sponsor's protocol ID
VX08-809-101
Status last verified
Jun 2015
First submitted
18 Mar 2009
Last updated
28 Aug 2015
Data monitoring committee
Yes

Publications

  • Heneghan M, Southern KW, Murphy J, Sinha IP, Nevitt SJ. Corrector therapies (with or without potentiators) for people with cystic fibrosis with class II CFTR gene variants (most commonly F508del). Cochrane Database Syst Rev. 2023 Nov 20;11(11):CD010966. doi: 10.1002/14651858.CD010966.pub4.

    PubMed 37983082
  • Southern KW, Murphy J, Sinha IP, Nevitt SJ. Corrector therapies (with or without potentiators) for people with cystic fibrosis with class II CFTR gene variants (most commonly F508del). Cochrane Database Syst Rev. 2020 Dec 17;12(12):CD010966. doi: 10.1002/14651858.CD010966.pub3.

    PubMed 33331662
  • Clancy JP, Rowe SM, Accurso FJ, Aitken ML, Amin RS, Ashlock MA, Ballmann M, Boyle MP, Bronsveld I, Campbell PW, De Boeck K, Donaldson SH, Dorkin HL, Dunitz JM, Durie PR, Jain M, Leonard A, McCoy KS, Moss RB, Pilewski JM, Rosenbluth DB, Rubenstein RC, Schechter MS, Botfield M, Ordonez CL, Spencer-Green GT, Vernillet L, Wisseh S, Yen K, Konstan MW. Results of a phase IIa study of VX-809, an investigational CFTR corrector compound, in subjects with cystic fibrosis homozygous for the F508del-CFTR mutation. Thorax. 2012 Jan;67(1):12-8. doi: 10.1136/thoraxjnl-2011-200393. Epub 2011 Aug 8.

    PubMed 21825083

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing VX-809 in people with Cystic Fibrosis, run by Vertex Pharmaceuticals Incorporated at 25 sites in 5 countries.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 7 inclusion and 4 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 28 Aug 2015. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 25 sites in United States, Belgium, Germany, Netherlands, Canada. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 28 Aug 2015). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Safety and Tolerability Based on Adverse Events (AEs) (time frame: Up to 14 days after last dose (last dose = Day 28)). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00865904, which also lists 3 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 28 Aug 2015.

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