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ClinicalTrials.gov public records Last synced Sep 30, 2026, 12:16 AM EDT

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Showing 1–24 of 37 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Ivacaftor 150 MG (milligrams) Clear all
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 Sep 30, 2026, 12:16 AM EDT
Completed Phase 2 Interventional Results available

Study of VX-809 Alone and in Combination With VX-770 in Cystic Fibrosis (CF) Patients Homozygous or Heterozygous for the F508del-CFTR Mutation

NCT01225211
View directory record Official record
Conditions
Cystic Fibrosis
Interventions
Lumacaftor, Ivacaftor, Lumacaftor Placebo, Ivacaftor Placebo
Drug
Lead sponsor
Vertex Pharmaceuticals Incorporated
Industry
Eligibility
18 Years and older
Enrollment
312 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2014
U.S. locations
38
States / cities
Birmingham, Alabama • Anchorage, Alaska • La Jolla, California + 35 more
Source: ClinicalTrials.gov public record
Updated Oct 5, 2015 · Synced Sep 30, 2026, 12:16 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 Sep 30, 2026, 12:16 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 Sep 30, 2026, 12:16 AM EDT
Completed Phase 3 Interventional Results available

A Study of VX-659 Combination Therapy in CF Subjects Homozygous for F508del (F/F)

NCT03460990
View directory record Official record
Conditions
Cystic Fibrosis
Interventions
VX-659/TEZ/IVA, TEZ/IVA, IVA, Placebo
Drug
Lead sponsor
Vertex Pharmaceuticals Incorporated
Industry
Eligibility
12 Years and older
Enrollment
116 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018
U.S. locations
28
States / cities
Birmingham, Alabama • New Haven, Connecticut • Miami, Florida + 25 more
Source: ClinicalTrials.gov public record
Updated Oct 17, 2019 · Synced Sep 30, 2026, 12:16 AM EDT
Completed Phase 3 Interventional Results available

Safety and Pharmacokinetic Study of Lumacaftor/Ivacaftor in Subjects Aged 2 Through 5 Years With Cystic Fibrosis, Homozygous for F508del

NCT02797132
View directory record Official record
Conditions
Cystic Fibrosis
Interventions
LUM/IVA
Drug
Lead sponsor
Vertex Pharmaceuticals Incorporated
Industry
Eligibility
2 Years to 5 Years
Enrollment
62 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
17
States / cities
Palo Alto, California • Aurora, Colorado • Chicago, Illinois + 14 more
Source: ClinicalTrials.gov public record
Updated Oct 30, 2018 · Synced Sep 30, 2026, 12:16 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 Sep 30, 2026, 12:16 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 Sep 30, 2026, 12:16 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 Sep 30, 2026, 12:16 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 Sep 30, 2026, 12:16 AM EDT
Completed Phase 3 Interventional Results available

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

NCT04043806
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
458 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
46
States / cities
Birmingham, Alabama • Palo Alto, California • Aurora, Colorado + 42 more
Source: ClinicalTrials.gov public record
Updated Jul 6, 2023 · Synced Sep 30, 2026, 12:16 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 Sep 30, 2026, 12:16 AM EDT
Completed Phase 2 Interventional Results available

Trikafta in Cystic Fibrosis Patients

NCT03506061
View directory record Official record
Conditions
Cystic Fibrosis
Interventions
Trikafta
Drug
Lead sponsor
Emory University
Other
Eligibility
12 Years and older
Enrollment
42 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2024
U.S. locations
2
States / cities
Birmingham, Alabama • Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Aug 11, 2026 · Synced Sep 30, 2026, 12:16 AM EDT
Completed Phase 2 Interventional Results available

A Phase 2 Study to Evaluate Efficacy and Safety of VX-561 in Subjects Aged 18 Years and Older With Cystic Fibrosis

NCT03911713
View directory record Official record
Conditions
Cystic Fibrosis
Interventions
VX-561, IVA, Placebo
Drug
Lead sponsor
Vertex Pharmaceuticals Incorporated
Industry
Eligibility
18 Years and older
Enrollment
77 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
30
States / cities
Birmingham, Alabama • Tucson, Arizona • Long Beach, California + 25 more
Source: ClinicalTrials.gov public record
Updated Jan 25, 2022 · Synced Sep 30, 2026, 12:16 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 Sep 30, 2026, 12:16 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 Sep 30, 2026, 12:16 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 Sep 30, 2026, 12:16 AM EDT
Completed Phase 2 Interventional Results available

A Study to Evaluate the Safety and Efficacy of VX-121 Combination Therapy in Subjects With Cystic Fibrosis

NCT03912233
View directory record Official record
Conditions
Cystic Fibrosis
Interventions
VX-121, TEZ, VX-561, TEZ/IVA, IVA, Placebo
Drug
Lead sponsor
Vertex Pharmaceuticals Incorporated
Industry
Eligibility
18 Years and older
Enrollment
87 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019
U.S. locations
12
States / cities
Los Angeles, California • Oakland, California • Lexington, Kentucky + 9 more
Source: ClinicalTrials.gov public record
Updated Apr 20, 2023 · Synced Sep 30, 2026, 12:16 AM EDT
Completed Phase 3 Interventional Results available

Rollover Study of Ivacaftor in Subjects With Cystic Fibrosis and a Non G551D CFTR Mutation

NCT01707290
View directory record Official record
Conditions
Cystic Fibrosis
Interventions
Ivacaftor
Drug
Lead sponsor
Vertex Pharmaceuticals Incorporated
Industry
Eligibility
6 Years and older
Enrollment
125 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2016
U.S. locations
33
States / cities
Birmingham, Alabama • Palo Alto, California • Denver, Colorado + 30 more
Source: ClinicalTrials.gov public record
Updated May 12, 2017 · Synced Sep 30, 2026, 12:16 AM EDT
Active, not recruiting No phase listed Observational

Ivacaftor Impact in an Adolescent Without a Cystic Fibrosis-Associated CFTR (Cystic Fibrosis Transmembrane Conductance Regulator) Mutation for Chronic Pancreatitis: Single-Patient Study Tracking Flare Frequency and Health Data Compared to Historical Records.

NCT07022327
View directory record Official record
Conditions
Chronic Pancreatitis
Interventions
Ivacaftor 150 MG (milligrams)
Drug
Lead sponsor
Mission: Cure
Other
Eligibility
Not listed
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Jun 15, 2025 · Synced Sep 30, 2026, 12:16 AM EDT
Completed Phase 3 Interventional Results available

A Study to Evaluate the Safety and Efficacy of Long-term Treatment With TEZ/IVA in CF Participants With an F508del CFTR Mutation

NCT03537651
View directory record Official record
Conditions
Cystic Fibrosis
Interventions
TEZ/IVA, IVA
Drug
Lead sponsor
Vertex Pharmaceuticals Incorporated
Industry
Eligibility
6 Years and older
Enrollment
130 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2023
U.S. locations
28
States / cities
Birmingham, Alabama • Anchorage, Alaska • Little Rock, Arkansas + 25 more
Source: ClinicalTrials.gov public record
Updated Apr 19, 2024 · Synced Sep 30, 2026, 12:16 AM EDT
Completed Phase 3 Interventional Results available

Evaluation of Long-term Safety and Efficacy of ELX/TEZ/IVA TC Combination Therapy in Participants With Cystic Fibrosis Who Are 6 Years of Age and Older

NCT04183790
View directory record Official record
Conditions
Cystic Fibrosis
Interventions
ELX/TEZ/IVA, IVA
Drug
Lead sponsor
Vertex Pharmaceuticals Incorporated
Industry
Eligibility
6 Years and older
Enrollment
64 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2024
U.S. locations
13
States / cities
Orange, California • Aurora, Colorado • Chicago, Illinois + 10 more
Source: ClinicalTrials.gov public record
Updated May 18, 2025 · Synced Sep 30, 2026, 12:16 AM EDT
Completed Phase 2 Interventional Results available

Study of VX-661 Alone and in Combination With Ivacaftor in Subjects Homozygous or Heterozygous to the F508del-Cystic Fibrosis Transmembrane Conductance Regulator(CFTR) Mutation

NCT01531673
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
12 Years and older
Enrollment
194 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
19
States / cities
Birmingham, Alabama • Oakland, California • Boise, Idaho + 16 more
Source: ClinicalTrials.gov public record
Updated Apr 13, 2018 · Synced Sep 30, 2026, 12:16 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 Sep 30, 2026, 12:16 AM EDT