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ClinicalTrials.gov public records Last synced Oct 2, 2026, 2:26 AM EDT

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Showing 25–48 of 56 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Ivacaftor 150 MG Clear all
Completed Phase 2 Interventional Results available

A Phase 2 Study to Evaluate Effects of VX-661/Ivacaftor on Lung and Extrapulmonary Systems in Subjects With Cystic Fibrosis, Homozygous for the F508del-CFTR Mutation

NCT02508207
View directory record Official record
Conditions
Cystic Fibrosis
Interventions
Tezacaftor/Ivacaftor, Ivacaftor, Tezacaftor/Ivacaftor matching placebo, Ivacaftor matching placebo
Drug
Lead sponsor
Vertex Pharmaceuticals Incorporated
Industry
Eligibility
18 Years and older
Enrollment
34 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
7
States / cities
Birmingham, Alabama • Indianapolis, Indiana • Baltimore, Maryland + 4 more
Source: ClinicalTrials.gov public record
Updated Jul 19, 2021 · Synced Oct 2, 2026, 2:26 AM EDT
Completed Phase 3 Interventional Results available

Safety and Pharmacokinetic Study of Lumacaftor/Ivacaftor in Participants 1 to Less Than 2 Years of Age With Cystic Fibrosis, Homozygous for F508del

NCT03601637
View directory record Official record
Conditions
Cystic Fibrosis
Interventions
LUM, IVA
Drug
Lead sponsor
Vertex Pharmaceuticals Incorporated
Industry
Eligibility
12 Months to 23 Months
Enrollment
61 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2021
U.S. locations
24
States / cities
Birmingham, Alabama • Little Rock, Arkansas • Palo Alto, California + 21 more
Source: ClinicalTrials.gov public record
Updated Jan 6, 2023 · Synced Oct 2, 2026, 2:26 AM EDT
Completed Phase 3 Interventional Results available

Study of Ivacaftor in Subjects With Cystic Fibrosis (CF) Who Have the R117H-CF Transmembrane Conductance Regulator (CFTR) Mutation (KONDUCT)

NCT01614457
View directory record Official record
Conditions
Cystic Fibrosis
Interventions
Ivacaftor, Placebo
Drug
Lead sponsor
Vertex Pharmaceuticals Incorporated
Industry
Eligibility
6 Years and older
Enrollment
70 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
29
States / cities
Birmingham, Alabama • Palo Alto, California • Hartford, Connecticut + 26 more
Source: ClinicalTrials.gov public record
Updated Feb 12, 2015 · Synced Oct 2, 2026, 2:26 AM EDT
Terminated Phase 3 Interventional Results available

A Study Evaluating the Long Term Safety and Efficacy of VX-659 Combination Therapy

NCT03447262
View directory record Official record
Conditions
Cystic Fibrosis
Interventions
VX-659/TEZ/IVA, IVA
Drug
Lead sponsor
Vertex Pharmaceuticals Incorporated
Industry
Eligibility
12 Years and older
Enrollment
484 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
48
States / cities
Birmingham, Alabama • Palo Alto, California • Aurora, Colorado + 44 more
Source: ClinicalTrials.gov public record
Updated Jan 25, 2022 · Synced Oct 2, 2026, 2:26 AM EDT
Completed Phase 2 Interventional Results available

Clearing Lungs With ENaC Inhibition in Primary Ciliary Dyskinesia

NCT02871778
View directory record Official record
Conditions
Primary Ciliary Dyskinesia
Interventions
VX-371, Hypertonic Saline, Placebo (0.17% saline), VX-371 + HS, Ivacaftor
Drug
Lead sponsor
Parion Sciences
Industry
Eligibility
12 Years and older
Enrollment
123 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
21
States / cities
Birmingham, Alabama • Palo Alto, California • Aurora, Colorado + 18 more
Source: ClinicalTrials.gov public record
Updated Dec 16, 2021 · Synced Oct 2, 2026, 2:26 AM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

A Study of VX-445 in Healthy Subjects and Subjects With Cystic Fibrosis

NCT03227471
View directory record Official record
Conditions
Cystic Fibrosis
Interventions
IVA, TEZ/IVA, VX-445, Matched Placebo, TEZ, VX-561
Drug
Lead sponsor
Vertex Pharmaceuticals Incorporated
Industry
Eligibility
18 Years and older
Enrollment
225 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
26
States / cities
Tucson, Arizona • Little Rock, Arkansas • Madera, California + 23 more
Source: ClinicalTrials.gov public record
Updated Jan 18, 2022 · Synced Oct 2, 2026, 2:26 AM EDT
Completed Phase 3 Interventional Results available

Study Evaluating the Long-term Safety and Efficacy of VX-445 Combination Therapy

NCT04058366
View directory record Official record
Conditions
Cystic Fibrosis
Interventions
ELX/TEZ/IVA, IVA
Drug
Lead sponsor
Vertex Pharmaceuticals Incorporated
Industry
Eligibility
12 Years and older
Enrollment
251 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
33
States / cities
Tucson, Arizona • Long Beach, California • Palo Alto, California + 28 more
Source: ClinicalTrials.gov public record
Updated Jan 16, 2024 · Synced Oct 2, 2026, 2:26 AM EDT
Completed Phase 3 Interventional Results available

A Study to Evaluate the Efficacy and Safety of VX-661 in Combination With Ivacaftor in Subjects Aged 12 Years and Older With Cystic Fibrosis, Heterozygous for the F508del-CFTR Mutation

NCT02516410
View directory record Official record
Conditions
Cystic Fibrosis
Interventions
VX-661 plus ivacaftor combination, Ivacaftor, Placebo (matched to VX-661 plus ivacaftor combination), Placebo (matched to ivacaftor)
Drug
Lead sponsor
Vertex Pharmaceuticals Incorporated
Industry
Eligibility
12 Years and older
Enrollment
168 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
22
States / cities
Birmingham, Alabama • La Jolla, California • Los Angeles, California + 19 more
Source: ClinicalTrials.gov public record
Updated Jun 12, 2018 · Synced Oct 2, 2026, 2:26 AM EDT
Terminated Phase 2 Interventional Results available

Study of Ivacaftor in Cystic Fibrosis Subjects Aged 12 Years and Older Homozygous for the F508del-CFTR Mutation

NCT00953706
View directory record Official record
Conditions
Cystic Fibrosis
Interventions
Ivacaftor, Placebo
Drug
Lead sponsor
Vertex Pharmaceuticals Incorporated
Industry
Eligibility
12 Years and older
Enrollment
140 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2013
U.S. locations
34
States / cities
Birmingham, Alabama • Anchorage, Alaska • Oakland, California + 30 more
Source: ClinicalTrials.gov public record
Updated Sep 11, 2015 · Synced Oct 2, 2026, 2:26 AM EDT
Completed Phase 2 Interventional Results available

Study to Evaluate Safety and Efficacy of VX-661 in Combination With Ivacaftor in Subjects With Cystic Fibrosis, Homozygous for the F508del-CFTR Mutation With an Open-Label Expansion

NCT02070744
View directory record Official record
Conditions
Cystic Fibrosis
Interventions
VX-661, Ivacaftor, Placebo matched to VX-661, Placebo matched to Ivacaftor
Drug
Lead sponsor
Vertex Pharmaceuticals Incorporated
Industry
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
23
States / cities
Birmingham, Alabama • Palo Alto, California • Stanford, California + 20 more
Source: ClinicalTrials.gov public record
Updated Sep 24, 2025 · Synced Oct 2, 2026, 2:26 AM EDT
Completed Phase 2 Interventional Results available

A Study Evaluating the Safety and Efficacy of VX-440 Combination Therapy in Subjects With Cystic Fibrosis

NCT02951182
View directory record Official record
Conditions
Cystic Fibrosis
Interventions
TEZ, IVA, VX-440, Matched Placebo
Drug
Lead sponsor
Vertex Pharmaceuticals Incorporated
Industry
Eligibility
12 Years and older
Enrollment
74 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
22
States / cities
Tucson, Arizona • Palo Alto, California • San Francisco, California + 18 more
Source: ClinicalTrials.gov public record
Updated Aug 28, 2020 · Synced Oct 2, 2026, 2:26 AM EDT
Completed Phase 3 Interventional Results available

Evaluation of VX 445/TEZ/IVA in Cystic Fibrosis Subjects 6 Through 11 Years of Age

NCT03691779
View directory record Official record
Conditions
Cystic Fibrosis
Interventions
ELX/TEZ/IVA, IVA
Drug
Lead sponsor
Vertex Pharmaceuticals Incorporated
Industry
Eligibility
6 Years to 11 Years
Enrollment
71 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
13
States / cities
Orange, California • Aurora, Colorado • Chicago, Illinois + 10 more
Source: ClinicalTrials.gov public record
Updated Oct 22, 2021 · Synced Oct 2, 2026, 2:26 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Study of VX-770 and Rifampin in Healthy Male Subjects

NCT01018368
View directory record Official record
Conditions
Cystic Fibrosis
Interventions
VX-770, Rifampin
Drug
Lead sponsor
Vertex Pharmaceuticals Incorporated
Industry
Eligibility
18 Years to 55 Years · Male only
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2010
U.S. locations
1
States / cities
Daytona Beach, Florida
Source: ClinicalTrials.gov public record
Updated May 10, 2010 · Synced Oct 2, 2026, 2:26 AM EDT
Completed Phase 3 Interventional Results available

A Study to Evaluate the Safety and Efficacy of Long Term Treatment With VX-661 in Combination With Ivacaftor in Participants With Cystic Fibrosis Who Have an F508del-CFTR Mutation

NCT02565914
View directory record Official record
Conditions
Cystic Fibrosis
Interventions
TEZ/IVA, IVA
Drug
Lead sponsor
Vertex Pharmaceuticals Incorporated
Industry
Eligibility
12 Years and older
Enrollment
1,131 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2022
U.S. locations
69
States / cities
Birmingham, Alabama • Tucson, Arizona • Little Rock, Arkansas + 66 more
Source: ClinicalTrials.gov public record
Updated Sep 28, 2023 · Synced Oct 2, 2026, 2:26 AM EDT
Completed Phase 3 Interventional Results available

A Phase 3 Study of Tezacaftor (VX-661) in Combination With Ivacaftor (VX-770) in Subjects Aged 12 Years and Older With Cystic Fibrosis (CF), Who Have One F508del-CFTR Mutation and a Second Mutation That Has Been Demonstrated to be Clinically Responsive to Ivacaftor

NCT02412111
View directory record Official record
Conditions
Cystic Fibrosis
Interventions
Ivacaftor, Tezacaftor/Ivacaftor
Drug
Lead sponsor
Vertex Pharmaceuticals Incorporated
Industry
Eligibility
12 Years and older
Enrollment
156 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
33
States / cities
Birmingham, Alabama • Oakland, California • San Diego, California + 30 more
Source: ClinicalTrials.gov public record
Updated Jan 8, 2019 · Synced Oct 2, 2026, 2:26 AM EDT
Terminated Phase 2 Interventional Results available

Study to Evaluate the Safety and Efficacy of CTP-656 in Patients With Cystic Fibrosis With CFTR Gating Mutations

NCT02971839
View directory record Official record
Conditions
Cystic Fibrosis
Interventions
VX-561, Placebo, IVA
Drug
Lead sponsor
Vertex Pharmaceuticals Incorporated
Industry
Eligibility
18 Years and older
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
14
States / cities
Los Angeles, California • Palo Alto, California • Washington D.C., District of Columbia + 11 more
Source: ClinicalTrials.gov public record
Updated Aug 26, 2020 · Synced Oct 2, 2026, 2:26 AM EDT
Completed Phase 3 Interventional Results available

A Study to Evaluate the Pharmacokinetics, Safety, and Tolerability of VX-661/Ivacaftor in Pediatric Subjects With Cystic Fibrosis (CF)

NCT02953314
View directory record Official record
Conditions
Cystic Fibrosis
Interventions
TEZ, TEZ/IVA, IVA
Drug
Lead sponsor
Vertex Pharmaceuticals Incorporated
Industry
Eligibility
6 Years to 11 Years
Enrollment
83 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
30
States / cities
Birmingham, Alabama • Anchorage, Alaska • Little Rock, Arkansas + 27 more
Source: ClinicalTrials.gov public record
Updated Mar 4, 2020 · Synced Oct 2, 2026, 2:26 AM EDT
Completed Phase 3 Interventional Results available

Long-term Safety of Lumacaftor/Ivacaftor in Participants With Cystic Fibrosis Who Are Homozygous for F508del and 12 to <24 Months of Age at Treatment Initiation

NCT04235140
View directory record Official record
Conditions
Cystic Fibrosis
Interventions
LUM/IVA
Drug
Lead sponsor
Vertex Pharmaceuticals Incorporated
Industry
Eligibility
12 Months and older
Enrollment
52 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
20
States / cities
Birmingham, Alabama • Little Rock, Arkansas • Aurora, Colorado + 17 more
Source: ClinicalTrials.gov public record
Updated Sep 19, 2024 · Synced Oct 2, 2026, 2:26 AM EDT
Completed Phase 3 Interventional Results available

A Study Evaluating the Long-term Safety and Efficacy of VX-445 Combination Therapy

NCT03525574
View directory record Official record
Conditions
Cystic Fibrosis
Interventions
ELX/TEZ/IVA, IVA
Drug
Lead sponsor
Vertex Pharmaceuticals Incorporated
Industry
Eligibility
12 Years and older
Enrollment
507 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2023
U.S. locations
52
States / cities
Tucson, Arizona • Little Rock, Arkansas • Long Beach, California + 47 more
Source: ClinicalTrials.gov public record
Updated Sep 24, 2025 · Synced Oct 2, 2026, 2:26 AM EDT
Completed Phase 3 Interventional Results available

A Study of VX-445 Combination Therapy in CF Subjects Homozygous for F508del (F/F)

NCT03525548
View directory record Official record
Conditions
Cystic Fibrosis
Interventions
VX-445/TEZ/IVA, TEZ/IVA, IVA, Placebo
Drug
Lead sponsor
Vertex Pharmaceuticals Incorporated
Industry
Eligibility
12 Years and older
Enrollment
113 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018
U.S. locations
28
States / cities
Tucson, Arizona • Little Rock, Arkansas • Long Beach, California + 24 more
Source: ClinicalTrials.gov public record
Updated Jan 27, 2020 · Synced Oct 2, 2026, 2:26 AM EDT
Completed Phase 3 Interventional Results available

Study of Ivacaftor in Subjects With Cystic Fibrosis (CF) Who Have a Non-G551D CF Transmembrane Conductance Regulator (CFTR) Gating Mutation

NCT01614470
View directory record Official record
Conditions
Cystic Fibrosis
Interventions
Ivacaftor, Placebo
Drug
Lead sponsor
Vertex Pharmaceuticals Incorporated
Industry
Eligibility
6 Years and older
Enrollment
39 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
8
States / cities
Tampa, Florida • Atlanta, Georgia • Chicago, Illinois + 5 more
Source: ClinicalTrials.gov public record
Updated Oct 29, 2014 · Synced Oct 2, 2026, 2:26 AM EDT
Completed Phase 3 Interventional Results available

A Phase 3 Study of VX-445 Combination Therapy in Cystic Fibrosis (CF) Subjects Heterozygous for F508del and a Gating or Residual Function Mutation (F/G and F/RF Genotypes)

NCT04058353
View directory record Official record
Conditions
Cystic Fibrosis
Interventions
ELX/TEZ/IVA, IVA, TEZ/IVA
Drug
Lead sponsor
Vertex Pharmaceuticals Incorporated
Industry
Eligibility
12 Years and older
Enrollment
271 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
37
States / cities
Birmingham, Alabama • Tucson, Arizona • Long Beach, California + 32 more
Source: ClinicalTrials.gov public record
Updated Jul 2, 2021 · Synced Oct 2, 2026, 2:26 AM EDT
Completed Phase 3 Interventional Results available

A Randomized, Double-Blind, Placebo-Controlled, Parallel-Group Study to Evaluate the Efficacy and Safety of VX-661 in Combination With Ivacaftor

NCT02347657
View directory record Official record
Conditions
Cystic Fibrosis
Interventions
VX-661 Plus Ivacaftor Combination, Ivacaftor, VX-661 Plus Ivacaftor Combination Placebo, Ivacaftor placebo
Drug
Lead sponsor
Vertex Pharmaceuticals Incorporated
Industry
Eligibility
12 Years and older
Enrollment
510 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
27
States / cities
Little Rock, Arkansas • Long Beach, California • Denver, Colorado + 24 more
Source: ClinicalTrials.gov public record
Updated Jun 12, 2018 · Synced Oct 2, 2026, 2:26 AM EDT
Completed Phase 3 Interventional Results available

Roll-Over Study of Ivacaftor in Cystic Fibrosis Pediatric Subjects With a CF Transmembrane Conductance Regulator Gene (CFTR) Gating Mutation

NCT01946412
View directory record Official record
Conditions
Cystic Fibrosis
Interventions
Ivacaftor
Drug
Lead sponsor
Vertex Pharmaceuticals Incorporated
Industry
Eligibility
2 Years and older
Enrollment
33 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
12
States / cities
Birmingham, Alabama • Denver, Colorado • Atlanta, Georgia + 9 more
Source: ClinicalTrials.gov public record
Updated Feb 1, 2017 · Synced Oct 2, 2026, 2:26 AM EDT