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Study to Evaluate Adverse Events and Change in Disease Activity With Oral Capsules of Galicaftor/Navocaftor/ABBV-119 or Galicaftor/Navocaftor/ABBV-576 Combination Therapies in Adult Participants With Cystic Fibrosis

A Phase 2 Study of Galicaftor/Navocaftor/ABBV-119 or Galicaftor/Navocaftor/ABBV-576 Combination Therapies in Subjects With Cystic Fibrosis Who Are Homozygous or Heterozygous for the F508del Mutation

Status
Terminated
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04853368
Enrollment
48
Registered
2021-04-21
Start date
2021-09-20
Completion date
2023-06-05
Last updated
2024-07-16

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Cystic Fibrosis (CF)

Keywords

Cystic Fibrosis (CF), Galicaftor, Navocaftor, ABBV-119, ABBV-576

Brief summary

Cystic Fibrosis (CF) is a rare, life-threatening, genetic disease that affects the lungs and digestive system, significantly impairing the quality of life, with those affected having a median age of death at 40. The main objective of this study is to assess how safe and effective is the combination therapy of galicaftor/navocaftor/ABBV-119 or Galicaftor/Navocaftor/ABBV-576 in adult participants with CF who are homozygous or heterozygous for the F508del mutation in each arm. Galicaftor/Navocaftor/ABBV-119 combination therapy and Galicaftor/Navocaftor/ABBV-576 is being developed as an investigational drug for the treatment of CF. Study doctors place participants in 1 of the 4 groups, called treatment arms. Each group receives a different treatment. Around 90 adult participants with a diagnosis of CF will be enrolled in the study around approximately 35 sites worldwide. Participants in arm 1 will receive oral capsules of galicaftor/navocaftor dual combination for 28 days followed by galicaftor/navocaftor/ABBV-119 triple combination for 28 days. Participants in arms 2 and 3 will receive the galicaftor/navocaftor/ABBV-119 triple combination or placebo for 28 days. Participants in arm 4 will receive galicaftor/navocaftor/ABBV-576 triple combination therapy for 28 days. For all study arms, ABBV-576, galicaftor, navocaftor, will be given once daily and ABBV-119 twice a day. There may be higher treatment burden for participants in this trial compared to their standard of care. Participants will attend regular visits during the study at a hospital or clinic. The effect of the treatment will be checked by medical assessments, blood tests, checking for side effects and completing questionnaires.

Detailed description

Participants in Cohorts 1 and 3 will receive Open-label therapy. Participants in Cohorts 2 will receive Double-blinded therapy.

Interventions

Oral capsules

Oral capsules

DRUGPlacebo

Oral capsules

Oral capsules

DRUGABBV-119

Oral capsules

Sponsors

AbbVie
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
TRIPLE (Subject, Caregiver, Investigator)

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Confirmed clinical diagnosis of cystic fibrosis (CF). * Arm 1 participants with genotype homozygous for the F508del CF transmembrane conductance regulator (CFTR) mutation and not receiving elexacaftor/tezacaftor/ivacaftor (ETI) treatment . * Arm 2 and 3 participants with genotype heterozygous for the F508del CFTR mutation and a minimal function mutation and not receiving ETI treatment. * Arm 4 participants with genotype either homozygous or heterozygous for the F508del mutation. Participants must be receiving stable ETI treatment. * Percent predicted forced expiratory volume in 1 second (ppFEV1) \>= 40% and \<=90% of predicted normal for age, gender and height at screening. * For arms 1 and 2: sweat chloride (SwCl) \>= 60 mmol/L at screening. For participants who participated in Study M19-530, it is acceptable to use a SwCl value that the central lab provided in Study M19-530 to establish eligibility. * Weight \>= 35 kg at screening and Day -28 for arm 1 or day 1 for arms 2 to 4.

Exclusion criteria

\- Clinically significant laboratory values at screening that would pose undue risk for the participant or interfere with safety assessments (per the investigator).

Design outcomes

Primary

MeasureTime frameDescription
Cohorts 1 and 2: Absolute Change From Baseline Through Day 29 in Percent Predicted Forced Expiratory Volume in 1 Second (ppFEV1)Day 1 (Baseline) through Day 29FEV1 is the volume of air that can forcibly be blown out in one second, after full inspiration and is used as a measure of lung function. Mixed-effect model with repeated measures (MMRM) was used for the analyses.
Cohort 3: Absolute Change From Baseline Through Day 29 in Sweat Chloride (SwCl) in mmol/LDay 1 (Baseline) through Day 29Sweat collection was performed to evaluate sweat chloride concentration. SwCl is a biomarker of cystic fibrosis transmembrane conductance regulator (CFTR) activity. Persons with CF have higher levels of chloride in their sweat. MMRM was used for the analysis.

Secondary

MeasureTime frameDescription
Absolute Change From Baseline Through Day 29 in Forced Expiratory Flow at Mid-Lung Capacity (FEF25-75)Day 1 (Baseline) through Day 29FEF25-75 is a lung function test that is measured during spirometry, and is defined as the forced expiratory flow between 25% and 75% of vital capacity (mid-lung capacity). MMRM was used for analyses.
Relative Changes From Baseline Through Day 29 in Percent Predicted Forced Expiratory Volume in 1 Second (ppFEV1)Day 1 (Baseline) through Day 29FEV1 is the volume of air that can forcibly be blown out in one second, after full inspiration and is used as a measure of lung function. MMRM was used for the analyses. Note: The primary analysis of ppFEV1 using MMRM excludes data that are inconsistent with baseline in terms of the timing of bronchodilator or airway clearance regimen.
Relative Changes From Baseline Through Day 29 in Forced Vital Capacity (FVC)Day 1 (Baseline) through Day 29FVC is the total amount of air exhaled during FEV test and is a lung function test that is measured during spirometry. MMRM was used for the analyses.
Cohorts 1 and 2: Absolute Change From Baseline Through Day 29 in Sweat Chloride (SwCl) in mmol/LDay 1 (Baseline) through Day 29Sweat collection was performed to evaluate sweat chloride concentration. SwCl is a biomarker of CFTR activity. Persons with CF have higher levels of chloride in their sweat. MMRM was used for the analysis.
Absolute Change in CF Questionnaire-Revised (CFQ-R) Respiratory Domain Score From Baseline.Day 1 (Baseline) through Day 29The CF Questionnaire-Revised (CFQ-R) Respiratory Domain Score is designed for use in participants with a diagnosis of cystic fibrosis and is designed to measure impact on overall health, daily life, perceived well-being, and symptoms. CFQ-R has a total of 50 questions. Questions 40, 41, 42, 44, 45, 46, scored 1, 2, 3, or 4, from worst to best, were used to calculate the respiratory domain score. The scaled score for the domain is calculated as 100 × (mean scores of all non-missing questions - 1) / 3, ranging from 0 to 100. If more than 3 questions in the domain have missing scores, the scaled score was set as missing. Note: The LS mean is estimated using the linear regression on the change in CFQ-R from baseline to day 29. The higher CFQ-R respiratory score indicates better health. A positive change in CFQ-R respiratory score since baseline indicates improved health quality, while a negative change indicates a decreased health quality.
Cohort 3: Absolute Change From Baseline Through Day 29 in Percent Predicted Forced Expiratory Volume in 1 Second (ppFEV1)Day 1 (Baseline) through Day 29FEV1 is the volume of air that can forcibly be blown out in one second, after full inspiration and is used as a measure of lung function. MMRM was used for the analyses. Note: The primary analysis of ppFEV1 using MMRM excludes data that are inconsistent with baseline in terms of the timing of bronchodilator or airway clearance regimen.
Relative Changes From Baseline Through Day 29 in Forced Expiratory Flow at Mid-Lung Capacity (FEF25-75)Day 1 (Baseline) through Day 29FEF25-75 is a lung function test that is measured during spirometry, and is defined as the forced expiratory flow between 25% and 75% of vital capacity (mid-lung capacity). MMRM was used for analyses.
Absolute Change From Baseline Through Day 29 in Forced Vital Capacity (FVC)Day 1 (Baseline) through Day 29FVC is the total amount of air exhaled during forced expiratory volume (FEV) test and is a lung function test that is measured during spirometry. MMRM was used for the analyses.

Countries

Australia, Belgium, Hungary, Netherlands, New Zealand, Slovakia, United States

Participant flow

Pre-assignment details

In this 2-part study, Cystic Fibrosis (CF) participants either homozygous or heterozygous for F508del mutation were placed in cohorts based on genotype and treatment status of ETI therapy. In Part 1, Cohort 1(Day -29 to -1) (C1) completed Galicaftor + Navocaftor (G+N) dual combination therapy for 28 days (d) and automatically started Part 2. In Part 2, C1(d1 - 29) and C2(d1 - 29) received G+N+ABBV-119 triple combination, and C3(d1 -29) received G+N+ABBV-576 triple combination for 28d

Participants by arm

ArmCount
C1 (d -29 to -1) Dual Combo: G + N, and C1 (d1 - 29) Triple Combo: G + N + ABBV-119 for F508del Homo
Cohort 1 (Day -29 to -1): F508del Homozygous cystic fibrosis (CF) participants received Galicaftor/Navocaftor dual combination therapy: Galicaftor: 300 mg QD, Oral capsules Navocaftor: 50 mg QD, Oral capsules Cohort 1 (Day 1 to 29): F508del Homozygous cystic fibrosis CF participants from Cohort 1 (Day -29 to -2) dual combination who received Galicaftor/Navocaftor dual combination followed by Galicaftor/Navocaftor/ABBV-119 triple combination therapy: Galicaftor: 300 mg QD, Oral capsules Navocaftor: 50 mg QD, Oral capsules ABBV-119: 210 mg BID, Oral capsules
24
Cohort 2 (d1 - 29) Triple Combo: G + N + ABBV-119 for F508del Heterozygous
F508del Heterozygous CF participants received Galicaftor/Navocaftor/ABBV-119 triple combination therapy(Day 1 - 29). Galicaftor: 300 mg QD, Oral capsules Navocaftor: 50 mg QD, Oral capsules ABBV-119: 210 mg BID, Oral capsules
9
Cohort 2 (d1 - 29) Placebo for F508del Heterozygous
F508del Heterozygous CF participants received placebo (Day 1 - 29). Placebo: Oral capsules
4
Cohort 3 (d1 - 29) Triple Combo: G + N + ABBV-576 for F508del Homozygous
F508del Homozygous CF participants receive Galicaftor/Navocaftor/ABBV-576 triple combination therapy (Day 1 - 29). Galicaftor: 300 mg QD, Oral capsules Navocaftor: 50 mg QD, Oral capsules ABBV-576: 5 mg QD, Oral capsules
9
Cohort 3 (d1 - 29) Triple Combo: G + N + ABBV-576 for F508del Heterozygous
F508del Heterozygous CF participants received Galicaftor/nNavocaftor/ABBV-576 triple combination therapy (Day 1 - 29). Galicaftor: 300 mg QD, Oral capsules Navocaftor: 50 mg QD, Oral capsules ABBV-576: 5 mg QD, Oral capsules
2
Total48

Baseline characteristics

CharacteristicCohort 2 (d1 - 29) Triple Combo: G + N + ABBV-119 for F508del HeterozygousCohort 2 (d1 - 29) Placebo for F508del HeterozygousC1 (d -29 to -1) Dual Combo: G + N, and C1 (d1 - 29) Triple Combo: G + N + ABBV-119 for F508del HomoCohort 3 (d1 - 29) Triple Combo: G + N + ABBV-576 for F508del HomozygousCohort 3 (d1 - 29) Triple Combo: G + N + ABBV-576 for F508del HeterozygousTotal
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Age, Categorical
Between 18 and 65 years
9 Participants4 Participants24 Participants9 Participants2 Participants48 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants0 Participants0 Participants0 Participants1 Participants1 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
9 Participants4 Participants24 Participants9 Participants1 Participants47 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Percent Predicted Forced Expiratory Volume in 1 Second (ppFEV1) (%) at Baseline (Day 1)
Cohort 1 (Day 1 - 29)
57.0 percent predicted FEV1 (%)
STANDARD_DEVIATION 14.63
57.0 percent predicted FEV1 (%)
STANDARD_DEVIATION 14.63
Percent Predicted Forced Expiratory Volume in 1 Second (ppFEV1) (%) at Baseline (Day 1)
Cohort 2 (Day 1 - 29)
62.9 percent predicted FEV1 (%)
STANDARD_DEVIATION 18.27
67.3 percent predicted FEV1 (%)
STANDARD_DEVIATION 19.97
64.2 percent predicted FEV1 (%)
STANDARD_DEVIATION 18.07
Percent Predicted Forced Expiratory Volume in 1 Second (ppFEV1) (%) at Baseline (Day 1)
Cohort 3 (Day 1 - 29)
57.0 percent predicted FEV1 (%)
STANDARD_DEVIATION 19.77
51.0 percent predicted FEV1 (%)
STANDARD_DEVIATION 5.66
55.9 percent predicted FEV1 (%)
STANDARD_DEVIATION 17.94
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Black or African American
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
More than one race
1 Participants0 Participants0 Participants0 Participants0 Participants1 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
8 Participants4 Participants24 Participants9 Participants2 Participants47 Participants
Region of Enrollment
Australia
5 participants2 participants8 participants1 participants0 participants16 participants
Region of Enrollment
Hungary
1 participants0 participants6 participants0 participants0 participants7 participants
Region of Enrollment
Netherlands
1 participants1 participants1 participants0 participants0 participants3 participants
Region of Enrollment
New Zealand
2 participants1 participants5 participants0 participants0 participants8 participants
Region of Enrollment
Slovakia
0 participants0 participants4 participants0 participants0 participants4 participants
Region of Enrollment
United States
0 participants0 participants0 participants8 participants2 participants10 participants
Sex: Female, Male
Female
3 Participants1 Participants9 Participants2 Participants2 Participants17 Participants
Sex: Female, Male
Male
6 Participants3 Participants15 Participants7 Participants0 Participants31 Participants
Sweat Chloride (SwCl) in mmol/L at Baseline (Day 1) Cohort 3
Cohort 1 (Day 1 - 29)
76.71 mmol/L
STANDARD_DEVIATION 13.127
76.71 mmol/L
STANDARD_DEVIATION 13.127
Sweat Chloride (SwCl) in mmol/L at Baseline (Day 1) Cohort 3
Cohort 2 (Day1 - 29)
93.61 mmol/L
STANDARD_DEVIATION 12.437
98.38 mmol/L
STANDARD_DEVIATION 9.978
95.08 mmol/L
STANDARD_DEVIATION 11.543
Sweat Chloride (SwCl) in mmol/L at Baseline (Day 1) Cohort 3
Cohort 3 (Day 1 - 29)
42.94 mmol/L
STANDARD_DEVIATION 10.333
26.50 mmol/L
STANDARD_DEVIATION 4.95
39.95 mmol/L
STANDARD_DEVIATION 11.494

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
EG004
affected / at risk
EG005
affected / at risk
deaths
Total, all-cause mortality
0 / 240 / 240 / 90 / 40 / 90 / 2
other
Total, other adverse events
4 / 2410 / 244 / 92 / 47 / 92 / 2
serious
Total, serious adverse events
0 / 241 / 240 / 90 / 41 / 90 / 2

Outcome results

Primary

Cohort 3: Absolute Change From Baseline Through Day 29 in Sweat Chloride (SwCl) in mmol/L

Sweat collection was performed to evaluate sweat chloride concentration. SwCl is a biomarker of cystic fibrosis transmembrane conductance regulator (CFTR) activity. Persons with CF have higher levels of chloride in their sweat. MMRM was used for the analysis.

Time frame: Day 1 (Baseline) through Day 29

Population: The Per-Protocol (PP) Population includes all enrolled subjects (randomized subjects for Cohort 2) who carry the intended CFTR mutation based on central lab report and received at least one dose of the Triple Therapy or placebo.

ArmMeasureValue (MEAN)
Cohort 1(Day 1 - 29) Triple Combination Galicaftor + Navocaftor + ABBV-119 for F508del HomozygousCohort 3: Absolute Change From Baseline Through Day 29 in Sweat Chloride (SwCl) in mmol/L24 Milli-mole/Liter (mmol/L)
Cohort 2(Day 1 - 29) Triple Combination Galicaftor+ Navocaftor + ABBV-119 for F508del HeterozygousCohort 3: Absolute Change From Baseline Through Day 29 in Sweat Chloride (SwCl) in mmol/L40 Milli-mole/Liter (mmol/L)
Primary

Cohorts 1 and 2: Absolute Change From Baseline Through Day 29 in Percent Predicted Forced Expiratory Volume in 1 Second (ppFEV1)

FEV1 is the volume of air that can forcibly be blown out in one second, after full inspiration and is used as a measure of lung function. Mixed-effect model with repeated measures (MMRM) was used for the analyses.

Time frame: Day 1 (Baseline) through Day 29

Population: The Per-Protocol (PP) Population includes all enrolled subjects (randomized subjects for Cohort 2) who carry the intended CFTR mutation based on central lab report and received at least one dose of the Triple Therapy or placebo.

ArmMeasureValue (MEAN)Dispersion
Cohort 1(Day 1 - 29) Triple Combination Galicaftor + Navocaftor + ABBV-119 for F508del HomozygousCohorts 1 and 2: Absolute Change From Baseline Through Day 29 in Percent Predicted Forced Expiratory Volume in 1 Second (ppFEV1)2.2 percent predicted FEV1 (%ppFEV1)Standard Deviation 3.68
Cohort 2(Day 1 - 29) Triple Combination Galicaftor+ Navocaftor + ABBV-119 for F508del HeterozygousCohorts 1 and 2: Absolute Change From Baseline Through Day 29 in Percent Predicted Forced Expiratory Volume in 1 Second (ppFEV1)2.6 percent predicted FEV1 (%ppFEV1)Standard Deviation 5.62
Cohort 2 (Day 1 - 29) Placebo for F508del HeterozygousCohorts 1 and 2: Absolute Change From Baseline Through Day 29 in Percent Predicted Forced Expiratory Volume in 1 Second (ppFEV1)-2.0 percent predicted FEV1 (%ppFEV1)Standard Deviation 6.63
p-value: 0.25490% CI: [-2.07, 4.67]Mixed Models Analysis
p-value: 0.40290% CI: [-5.07, 6.77]Mixed Models Analysis
p-value: 0.00290% CI: [1.22, 4.04]Mixed Models Analysis
Secondary

Absolute Change From Baseline Through Day 29 in Forced Expiratory Flow at Mid-Lung Capacity (FEF25-75)

FEF25-75 is a lung function test that is measured during spirometry, and is defined as the forced expiratory flow between 25% and 75% of vital capacity (mid-lung capacity). MMRM was used for analyses.

Time frame: Day 1 (Baseline) through Day 29

Population: The Per-Protocol (PP) Population includes all enrolled subjects (randomized subjects for Cohort 2) who carry the intended CFTR mutation based on central lab report and received at least one dose of the Triple Therapy or placebo.

ArmMeasureValue (MEAN)Dispersion
Cohort 1(Day 1 - 29) Triple Combination Galicaftor + Navocaftor + ABBV-119 for F508del HomozygousAbsolute Change From Baseline Through Day 29 in Forced Expiratory Flow at Mid-Lung Capacity (FEF25-75)0.067 Liters/second (L/sec)Standard Deviation 0.2038
Cohort 2(Day 1 - 29) Triple Combination Galicaftor+ Navocaftor + ABBV-119 for F508del HeterozygousAbsolute Change From Baseline Through Day 29 in Forced Expiratory Flow at Mid-Lung Capacity (FEF25-75)0.134 Liters/second (L/sec)Standard Deviation 0.2506
Cohort 2 (Day 1 - 29) Placebo for F508del HeterozygousAbsolute Change From Baseline Through Day 29 in Forced Expiratory Flow at Mid-Lung Capacity (FEF25-75)-0.082 Liters/second (L/sec)Standard Deviation 0.1947
Cohort 3 (Day 1 - 29) Triple Combination Galicaftor + Navocaftor + ABBV-576 for F508del HomozygousAbsolute Change From Baseline Through Day 29 in Forced Expiratory Flow at Mid-Lung Capacity (FEF25-75)-0.329 Liters/second (L/sec)Standard Deviation 0.378
Cohort 3(Day 1 - 29)Triple Combination Galicaftor + Navocaftor + ABBV-576 for F508del HeterozygousAbsolute Change From Baseline Through Day 29 in Forced Expiratory Flow at Mid-Lung Capacity (FEF25-75)-0.263 Liters/second (L/sec)
p-value: 0.01790% CI: [0.0209, 0.1568]Mixed Models Analysis
p-value: 0.16990% CI: [-0.1814, 0.288]Mixed Models Analysis
p-value: 0.2390% CI: [-0.1809, 0.4527]Mixed Models Analysis
Secondary

Absolute Change From Baseline Through Day 29 in Forced Vital Capacity (FVC)

FVC is the total amount of air exhaled during forced expiratory volume (FEV) test and is a lung function test that is measured during spirometry. MMRM was used for the analyses.

Time frame: Day 1 (Baseline) through Day 29

Population: The Per-Protocol (PP) Population includes all enrolled subjects (randomized subjects for Cohort 2) who carry the intended CFTR mutation based on central lab report and received at least one dose of the Triple Therapy or placebo.

ArmMeasureValue (MEAN)Dispersion
Cohort 1(Day 1 - 29) Triple Combination Galicaftor + Navocaftor + ABBV-119 for F508del HomozygousAbsolute Change From Baseline Through Day 29 in Forced Vital Capacity (FVC)0.10 Liters (L)Standard Deviation 0.256
Cohort 2(Day 1 - 29) Triple Combination Galicaftor+ Navocaftor + ABBV-119 for F508del HeterozygousAbsolute Change From Baseline Through Day 29 in Forced Vital Capacity (FVC)0.05 Liters (L)Standard Deviation 0.269
Cohort 2 (Day 1 - 29) Placebo for F508del HeterozygousAbsolute Change From Baseline Through Day 29 in Forced Vital Capacity (FVC)-0.07 Liters (L)Standard Deviation 0.297
Cohort 3 (Day 1 - 29) Triple Combination Galicaftor + Navocaftor + ABBV-576 for F508del HomozygousAbsolute Change From Baseline Through Day 29 in Forced Vital Capacity (FVC)-0.22 Liters (L)Standard Deviation 0.318
Cohort 3(Day 1 - 29)Triple Combination Galicaftor + Navocaftor + ABBV-576 for F508del HeterozygousAbsolute Change From Baseline Through Day 29 in Forced Vital Capacity (FVC)-0.28 Liters (L)
Comparison: Cohort 2: Difference between Triple Therapy and Placebop-value: 0.35290% CI: [-0.332, 0.212]Mixed Models Analysis
p-value: 0.00390% CI: [0.059, 0.219]Mixed Models Analysis
p-value: 0.47590% CI: [-0.162, 0.15]Mixed Models Analysis
Secondary

Absolute Change in CF Questionnaire-Revised (CFQ-R) Respiratory Domain Score From Baseline.

The CF Questionnaire-Revised (CFQ-R) Respiratory Domain Score is designed for use in participants with a diagnosis of cystic fibrosis and is designed to measure impact on overall health, daily life, perceived well-being, and symptoms. CFQ-R has a total of 50 questions. Questions 40, 41, 42, 44, 45, 46, scored 1, 2, 3, or 4, from worst to best, were used to calculate the respiratory domain score. The scaled score for the domain is calculated as 100 × (mean scores of all non-missing questions - 1) / 3, ranging from 0 to 100. If more than 3 questions in the domain have missing scores, the scaled score was set as missing. Note: The LS mean is estimated using the linear regression on the change in CFQ-R from baseline to day 29. The higher CFQ-R respiratory score indicates better health. A positive change in CFQ-R respiratory score since baseline indicates improved health quality, while a negative change indicates a decreased health quality.

Time frame: Day 1 (Baseline) through Day 29

Population: The Per-Protocol (PP) Population includes all enrolled subjects (randomized subjects for Cohort 2) who carry the intended CFTR mutation based on central lab report and received at least one dose of the Triple Therapy or placebo.

ArmMeasureValue (MEAN)Dispersion
Cohort 1(Day 1 - 29) Triple Combination Galicaftor + Navocaftor + ABBV-119 for F508del HomozygousAbsolute Change in CF Questionnaire-Revised (CFQ-R) Respiratory Domain Score From Baseline.5.56 score on a scaleStandard Deviation 15.93
Cohort 2(Day 1 - 29) Triple Combination Galicaftor+ Navocaftor + ABBV-119 for F508del HeterozygousAbsolute Change in CF Questionnaire-Revised (CFQ-R) Respiratory Domain Score From Baseline.10.32 score on a scaleStandard Deviation 19.092
Cohort 2 (Day 1 - 29) Placebo for F508del HeterozygousAbsolute Change in CF Questionnaire-Revised (CFQ-R) Respiratory Domain Score From Baseline.-5.56 score on a scaleStandard Deviation 21.754
Cohort 3 (Day 1 - 29) Triple Combination Galicaftor + Navocaftor + ABBV-576 for F508del HomozygousAbsolute Change in CF Questionnaire-Revised (CFQ-R) Respiratory Domain Score From Baseline.-9.26 score on a scaleStandard Deviation 22.453
Cohort 3(Day 1 - 29)Triple Combination Galicaftor + Navocaftor + ABBV-576 for F508del HeterozygousAbsolute Change in CF Questionnaire-Revised (CFQ-R) Respiratory Domain Score From Baseline.-22.22 score on a scale
p-value: 0.05790% CI: [-0.26, 11.37]Mixed Models Analysis
p-value: 0.08890% CI: [-2.18, 19.4]Mixed Models Analysis
p-value: 0.14290% CI: [-6.9, 29.25]Mixed Models Analysis
Secondary

Cohort 3: Absolute Change From Baseline Through Day 29 in Percent Predicted Forced Expiratory Volume in 1 Second (ppFEV1)

FEV1 is the volume of air that can forcibly be blown out in one second, after full inspiration and is used as a measure of lung function. MMRM was used for the analyses. Note: The primary analysis of ppFEV1 using MMRM excludes data that are inconsistent with baseline in terms of the timing of bronchodilator or airway clearance regimen.

Time frame: Day 1 (Baseline) through Day 29

Population: The Per-Protocol (PP) Population includes all enrolled subjects (randomized subjects for Cohort 2) who carry the intended CFTR mutation based on central lab report and received at least one dose of the Triple Therapy or placebo.

ArmMeasureValue (MEAN)
Cohort 1(Day 1 - 29) Triple Combination Galicaftor + Navocaftor + ABBV-119 for F508del HomozygousCohort 3: Absolute Change From Baseline Through Day 29 in Percent Predicted Forced Expiratory Volume in 1 Second (ppFEV1)-5.7 % ppFEV1
Cohort 2(Day 1 - 29) Triple Combination Galicaftor+ Navocaftor + ABBV-119 for F508del HeterozygousCohort 3: Absolute Change From Baseline Through Day 29 in Percent Predicted Forced Expiratory Volume in 1 Second (ppFEV1)-9.0 % ppFEV1
Secondary

Cohorts 1 and 2: Absolute Change From Baseline Through Day 29 in Sweat Chloride (SwCl) in mmol/L

Sweat collection was performed to evaluate sweat chloride concentration. SwCl is a biomarker of CFTR activity. Persons with CF have higher levels of chloride in their sweat. MMRM was used for the analysis.

Time frame: Day 1 (Baseline) through Day 29

Population: The Per-Protocol (PP) Population includes all enrolled subjects (randomized subjects for Cohort 2) who carry the intended CFTR mutation based on central lab report and received at least one dose of the Triple Therapy or placebo.

ArmMeasureValue (MEAN)Dispersion
Cohort 1(Day 1 - 29) Triple Combination Galicaftor + Navocaftor + ABBV-119 for F508del HomozygousCohorts 1 and 2: Absolute Change From Baseline Through Day 29 in Sweat Chloride (SwCl) in mmol/L5.7 mmol/LStandard Deviation 10.78
Cohort 2(Day 1 - 29) Triple Combination Galicaftor+ Navocaftor + ABBV-119 for F508del HeterozygousCohorts 1 and 2: Absolute Change From Baseline Through Day 29 in Sweat Chloride (SwCl) in mmol/L-11.5 mmol/LStandard Deviation 16.61
Cohort 2 (Day 1 - 29) Placebo for F508del HeterozygousCohorts 1 and 2: Absolute Change From Baseline Through Day 29 in Sweat Chloride (SwCl) in mmol/L2.5 mmol/LStandard Deviation 4.56
p-value: 0.02290% CI: [1.07, 9.92]Mixed Models Analysis
p-value: 0.04390% CI: [-27.59, -0.62]Mixed Models Analysis
Secondary

Relative Changes From Baseline Through Day 29 in Forced Expiratory Flow at Mid-Lung Capacity (FEF25-75)

FEF25-75 is a lung function test that is measured during spirometry, and is defined as the forced expiratory flow between 25% and 75% of vital capacity (mid-lung capacity). MMRM was used for analyses.

Time frame: Day 1 (Baseline) through Day 29

Population: The Per-Protocol (PP) Population includes all enrolled subjects (randomized subjects for Cohort 2) who carry the intended CFTR mutation based on central lab report and received at least one dose of the Triple Therapy or placebo.

ArmMeasureValue (MEAN)Dispersion
Cohort 1(Day 1 - 29) Triple Combination Galicaftor + Navocaftor + ABBV-119 for F508del HomozygousRelative Changes From Baseline Through Day 29 in Forced Expiratory Flow at Mid-Lung Capacity (FEF25-75)4.553 Liters/second (L/sec)Standard Deviation 13.2453
Cohort 2(Day 1 - 29) Triple Combination Galicaftor+ Navocaftor + ABBV-119 for F508del HeterozygousRelative Changes From Baseline Through Day 29 in Forced Expiratory Flow at Mid-Lung Capacity (FEF25-75)8.701 Liters/second (L/sec)Standard Deviation 12.9781
Cohort 2 (Day 1 - 29) Placebo for F508del HeterozygousRelative Changes From Baseline Through Day 29 in Forced Expiratory Flow at Mid-Lung Capacity (FEF25-75)-6.449 Liters/second (L/sec)Standard Deviation 25.1954
Cohort 3 (Day 1 - 29) Triple Combination Galicaftor + Navocaftor + ABBV-576 for F508del HomozygousRelative Changes From Baseline Through Day 29 in Forced Expiratory Flow at Mid-Lung Capacity (FEF25-75)-8.288 Liters/second (L/sec)Standard Deviation 24.409
Cohort 3(Day 1 - 29)Triple Combination Galicaftor + Navocaftor + ABBV-576 for F508del HeterozygousRelative Changes From Baseline Through Day 29 in Forced Expiratory Flow at Mid-Lung Capacity (FEF25-75)-25.784 Liters/second (L/sec)
p-value: 0.01890% CI: [1.4443, 11.5056]Mixed Models Analysis
p-value: 0.21490% CI: [-7.1464, 19.1844]Mixed Models Analysis
p-value: 0.28690% CI: [-15.186, 29.766]Mixed Models Analysis
Secondary

Relative Changes From Baseline Through Day 29 in Forced Vital Capacity (FVC)

FVC is the total amount of air exhaled during FEV test and is a lung function test that is measured during spirometry. MMRM was used for the analyses.

Time frame: Day 1 (Baseline) through Day 29

Population: The Per-Protocol (PP) Population includes all enrolled subjects (randomized subjects for Cohort 2) who carry the intended CFTR mutation based on central lab report and received at least one dose of the Triple Therapy or placebo.

ArmMeasureValue (MEAN)Dispersion
Cohort 1(Day 1 - 29) Triple Combination Galicaftor + Navocaftor + ABBV-119 for F508del HomozygousRelative Changes From Baseline Through Day 29 in Forced Vital Capacity (FVC)3.75 Liters (L)Standard Deviation 7.006
Cohort 2(Day 1 - 29) Triple Combination Galicaftor+ Navocaftor + ABBV-119 for F508del HeterozygousRelative Changes From Baseline Through Day 29 in Forced Vital Capacity (FVC)1.07 Liters (L)Standard Deviation 6.524
Cohort 2 (Day 1 - 29) Placebo for F508del HeterozygousRelative Changes From Baseline Through Day 29 in Forced Vital Capacity (FVC)-2.06 Liters (L)Standard Deviation 8.004
Cohort 3 (Day 1 - 29) Triple Combination Galicaftor + Navocaftor + ABBV-576 for F508del HomozygousRelative Changes From Baseline Through Day 29 in Forced Vital Capacity (FVC)-6.01 Liters (L)Standard Deviation 8.782
Cohort 3(Day 1 - 29)Triple Combination Galicaftor + Navocaftor + ABBV-576 for F508del HeterozygousRelative Changes From Baseline Through Day 29 in Forced Vital Capacity (FVC)-16.91 Liters (L)
p-value: <0.00190% CI: [2.19, 6.524]Mixed Models Analysis
p-value: 0.39690% CI: [-4.449, 3.268]Mixed Models Analysis
p-value: 0.30590% CI: [-8.724, 4.732]Mixed Models Analysis
Secondary

Relative Changes From Baseline Through Day 29 in Percent Predicted Forced Expiratory Volume in 1 Second (ppFEV1)

FEV1 is the volume of air that can forcibly be blown out in one second, after full inspiration and is used as a measure of lung function. MMRM was used for the analyses. Note: The primary analysis of ppFEV1 using MMRM excludes data that are inconsistent with baseline in terms of the timing of bronchodilator or airway clearance regimen.

Time frame: Day 1 (Baseline) through Day 29

Population: The Per-Protocol (PP) Population includes all enrolled subjects (randomized subjects for Cohort 2) who carry the intended CFTR mutation based on central lab report and received at least one dose of the Triple Therapy or placebo.

ArmMeasureValue (MEAN)Dispersion
Cohort 1(Day 1 - 29) Triple Combination Galicaftor + Navocaftor + ABBV-119 for F508del HomozygousRelative Changes From Baseline Through Day 29 in Percent Predicted Forced Expiratory Volume in 1 Second (ppFEV1)3.8 % ppFEV1Standard Deviation 6.07
Cohort 2(Day 1 - 29) Triple Combination Galicaftor+ Navocaftor + ABBV-119 for F508del HeterozygousRelative Changes From Baseline Through Day 29 in Percent Predicted Forced Expiratory Volume in 1 Second (ppFEV1)3.3 % ppFEV1Standard Deviation 8.15
Cohort 2 (Day 1 - 29) Placebo for F508del HeterozygousRelative Changes From Baseline Through Day 29 in Percent Predicted Forced Expiratory Volume in 1 Second (ppFEV1)-4.9 % ppFEV1Standard Deviation 12.25
Cohort 3 (Day 1 - 29) Triple Combination Galicaftor + Navocaftor + ABBV-576 for F508del HomozygousRelative Changes From Baseline Through Day 29 in Percent Predicted Forced Expiratory Volume in 1 Second (ppFEV1)-9.1 % ppFEV1Standard Deviation 5.12
Cohort 3(Day 1 - 29)Triple Combination Galicaftor + Navocaftor + ABBV-576 for F508del HeterozygousRelative Changes From Baseline Through Day 29 in Percent Predicted Forced Expiratory Volume in 1 Second (ppFEV1)-19.1 % ppFEV1
p-value: 0.00290% CI: [2.04, 6.78]Mixed Models Analysis
p-value: 0.3590% CI: [-4.42, 6.97]Mixed Models Analysis
p-value: 0.41290% CI: [-8.75, 11.34]Mixed Models Analysis

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026