The purpose of this study is learn more about the effectiveness and safety of VX-445 used in combination with TEZ, IVA and VX-561 in patients with cystic fibrosis.
Participation could last for approximately 16 weeks. This will include a Screening Period that will last up to 4 weeks, a Run-in Period that will last up to 4 weeks, a Treatment Period that will last up to 4 weeks, and a Follow-up Period that may last up to 4 weeks after the last dose of Study Drug. Approximately 100 people will participate in this study.
The purpose of this study is to learn more about the effectiveness and safety of VX-445 used in combination with TEZ and VX-561 in patients with cystic fibrosis. Participation could last for approximately 32 weeks. This will include a Screening Period that will last up to 4 weeks, a Treatment Period that will last up to 24 weeks, and a Follow-up Period that may last up to 4 weeks after the last dose of Study Drug. Approximately 360 people will participate in this study.
In this study, PTI-808 will be given alone and in combination with two other experimental drugs, PTI-801 and PTI-428. PTI-428, PTI-801, and PTI-808 are considered cystic fibrosis transmembrane conductance regulator (CFTR) modulators being developed to treat the underlying mechanism of cystic fibrosis. PTI-428 is a CFTR amplifier that increases the amount of CFTR protein in the cell, PTI-801 is a CFTR corrector that improves the processing of CFTR protein in the cell, and PTI-808 is a CFTR potentiator to enhance the activity of CFTR at the cell surface. Individual modulators have been shown to have limited activity, and therefore it is predicted that a combination of modulators will be required to fully address the CFTR protein defects. The study will also obtain information on how the study drug moves into, through, and out of the body. The expected duration of this study is up to 57 days
This study is being done to evaluate the long-term outcomes of patients with CF who are homozygous for the F508del-CFTR mutation and previously took part in Study VX12-809-105 and are currently participating in the CF Registry.
No part of this study is experimental. There will be no more than 485 people participating in this study. No additional medical tests or procedures are needed to participate in this study.
The purpose of this study is to learn more about the long-term safety, tolerability, and effects of the combination of VX-661 and ivacaftor in subjects with Cystic Fibrosis. This is a rollover study from study VX 15-661-113 Part B. Approximately 121 people will participate in this study. Participation could last for approximately 100 weeks. This will include a treatment period that will last up to 96 weeks, and a follow-up period that will last up to 4 weeks.
This is a randomized, double-blind, multi-center study in pediatric
subjects age 3 months to less than 18 years with CF and newly
detected PA respiratory tract colonization/infection. The study
schedule will consist of a minimum of 13 visits: Screening, Day 1
(Baseline and Randomization), Day 29, Weeks 6, 8, 16, and at
12-week intervals thereafter through Week 112. Subjects may be
screened up to 14 days prior to the Baseline visit to determine
eligibility for participation in the study. Screening and Baseline may
occur on the same day for subjects.
This is a research study to find out if a drug called lenabasum can help people with Cystic Fibrosis (CF) and if it is safe to take without causing too many side effects. There are 9 planned study visits in the institution during this study.
This is an observational study which will collect sweat chloride values from approximately 1000 cystic fibrosis subjects who are currently on cystic fibrosis transmembrane conductance regulator (CFTR) modulators. This study will require one visit to an MUSC clinic which will last approximately 2 hours. Compensation is provided.
This is a research study to test a new investigational drug, PTI-801. An investigational drug is one that is not approved by the US FDA. In this study, PTI-801 will be compared to placebo (a capsule that looks like the investigational drug, but does not contain an active drug substance). Although PTI-801 has been given to normal healthy adults, this is the FIRST time that PTI-801 has been given to people with CF.