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Evaluation of Ivacaftor in Patients Using Ataluren for Nonsense Mutations

An Open Label Study to Investigate the Role of Ivacaftor for the Treatment of Cystic Fibrosis in Combination With Ataluren (PTC124) in Cystic Fibrosis Patients Using Ataluren for Nonsense Mutations

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03256799
Enrollment
1
Registered
2017-08-22
Start date
2017-03-17
Completion date
2018-02-16
Last updated
2019-07-19

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

Conditions

Cystic Fibrosis

Brief summary

The purpose of this study is to explore the combination of Ataluren and ivacaftor as a treatment for patients with a specific cystic fibrosis mutation

Detailed description

In about 10% of patients with CF, the defect in the gene is known as a stop mutation. This mutation truncates the cystic fibrosis transductive regulator (CFTR) protein production by introducing a premature stop in the messenger RNA (mRNA), this type of mutation is known as a stop mutation. Ataluren is a novel, oral drug that promotes this gene to work effectively and readthrough that premature stop sign. It is hypothesized that ivacaftor may increase the efficacy of Ataluren by activating a specific protein that may not be functioning properly.

Interventions

DRUGIvacaftor/Ataluren

Both drugs were given in combination for 48 week study period

Sponsors

University of Alabama at Birmingham
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

1. Evidence of signed and dated informed consent/assent document(s) indicating that the subject (and/or his parent/legal guardian) has been informed of all pertinent aspects of the trial. 2. Age ≥19 years 3. Body weight ≥16 kg 4. Diagnosis of cystic fibrosis and documentation of the presence of a nonsense mutations of the CFTR gene, as determined by historical genotyping 5. Ability to perform a valid, reproducible spirometry with demonstration of a forced expiratory volume in 1second (FEV1) ≥30% of predicted for age, gender, and height. 6. If the subject is sexually active, willingness to abstain from sexual intercourse or employ a barrier or medical method of contraception during the study drug administration 7. Willingness and ability to comply with all study procedures and assessments. 8. Currently receiving Ataluren for nonsense mutations through other clinical trial access.

Exclusion criteria

1. Any change (initiation, change in type of drug, dose modification, schedule modification, interruption, discontinuation, or re-initiation) in a chronic treatment/prophylaxis regimen for CF or for CF-related conditions within 2 weeks prior to screening. 2. Evidence of pulmonary exacerbation or acute upper or lower respiratory tract infection (including viral illnesses) within 2 weeks prior to screening. 3. Ongoing immunosuppressive therapy (other than corticosteroids up to 10mg/d equivalent of prednisone) 4. Ongoing warfarin, phenytoin, or tolbutamide therapy. 5. History of solid organ or hematological transplantation. 6. A history of positive hepatitis B surface antigen test, hepatitis C antibody test, or human immunodeficiency 7. Major complications of lung disease (including massive hemoptysis, pneumothorax, or pleural effusion) within 4 weeks prior to screening. 8. Pregnancy or breast-feeding. 9. Current smoker or a smoking history of ≥10 pack-years (number of cigarette packs/day × number of years smoked). 10. Prior or ongoing medical condition (eg, renal failure, alcoholism, drug abuse, psychiatric condition), medical history, physical findings, ECG findings, or laboratory abnormality that, in the investigator's opinion, could adversely affect the safety of the subject, makes it unlikely that the course of treatment or follow-up would be completed, or could impair the assessment of study results. \-

Design outcomes

Primary

MeasureTime frameDescription
Lung FunctionBaseline through 48 weekschange in lung function as measured by spirometry

Countries

United States

Participant flow

Recruitment details

N of 1 trial

Pre-assignment details

there was no multiple arms in this study and no multiple groups

Participants by arm

ArmCount
Ivacaftor/Ataluren
Ivacaftor/Ataluren
1
Total1

Baseline characteristics

CharacteristicIvacaftor/Ataluren
Age, Categorical
<=18 years
0 Participants
Age, Categorical
>=65 years
0 Participants
Age, Categorical
Between 18 and 65 years
1 Participants
Race/Ethnicity, Customized
caucasian, non-hispanic
1 Participants
Region of Enrollment
United States
1 participants
Sex: Female, Male
Female
1 Participants
Sex: Female, Male
Male
0 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
0 / 1
other
Total, other adverse events
1 / 1
serious
Total, serious adverse events
0 / 1

Outcome results

Primary

Lung Function

change in lung function as measured by spirometry

Time frame: Baseline through 48 weeks

ArmMeasureValue (NUMBER)
Ivacaftor/AtalurenLung Function35 Liters

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