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Open Label Extension Study in Patients With Idiopathic Pulmonary Fibrosis Who Completed Protocol AC-052-321/ BUILD 3 / NCT00391443

Open-Label Extension Study in Patients With Idiopathic Pulmonary Fibrosis Who Completed Protocol AC-052-321 (NCT00391443)

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00631475
Acronym
BUILD OL
Enrollment
128
Registered
2008-03-07
Start date
2008-04-30
Completion date
2010-05-31
Last updated
2025-02-04

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

Conditions

Idiopathic Pulmonary Fibrosis

Keywords

Actelion, Idiopathic Pulmonary Fibrosis, bosentan, Tracleer, Interstitial Lung Disease, BUILD 3 (NCT00391443)

Brief summary

This Open-label extension study in patients with Idiopathic Pulmonary Fibrosis who completed protocol AC-052-321 / BUILD 3 (NCT00391443) will asses the long term safety and tolerability of bosentan in patients with idiopathic pulmonary fibrosis (IPF).

Interventions

DRUGBosentan

For patients who were administered Bosentan during BUILD 3 (NCT00391443): continue on same dose For patients who were administered placebo during BUILD 3 (NCT00391443): Oral Bosentan 62.5 mg for 4 weeks; maintenance dose: 125 mg ( 62.5 if patient weighs \< 90 lbs.)

Sponsors

Actelion
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

Patients should have completed all the assessments from the BUILD 3 (NCT00391443) end of study (EOS) visit. * Signed informed consent prior to initiation of any study-related procedures. * Women of childbearing potential must have a negative serum pregnancy test and use reliable methods of contraception during study treatment and for 3 months after study treatment termination.

Exclusion criteria

* Any major violation of protocol AC-052-321 / BUILD 3 (NCT00391443). * Pregnancy or breast-feeding. * AST and/or ALT \> 3 times the upper limit of the normal range. * Any known factor or disease that might interfere with treatment compliance, study conduct or interpretation of the results, such as drug or alcohol dependence or psychiatric disease. * Known hypersensitivity to bosentan or any of the excipients.

Design outcomes

Primary

MeasureTime frameDescription
Extent of Exposure to Bosentan in Patients With Idiopathic Pulmonary Fibrosis (IPF)Start of study to end of study, up to 21 monthsMean extent of exposure to bosentan treatment in months

Secondary

MeasureTime frameDescription
Number of Patients Exposed to Bosentan Over TimeStart to end of study, up to 21 monthsNumbers of participants exposed to bosentan treatment over time
Adverse Events (AE) Leading to Discontinuation of Study Drug.Start to end of study, up to 21 monthsNumber of participants with at least one AE that led to permanent discontinuation of study treatment.
Treatment-emergent Serious Adverse Events (SAE)up to 21 months plus 28 days after the end of study drugNumber of participants with at least one SAE during the study.
Occurrence of Liver Function Test (LFT: Alanine Aminotransferase (ALT) and Aspartate Aminotransferase (AST)) Abnormality.up to 21 months, plus 24 hours after the end of study treatmentNumber of participants with an increase in ALT and/or AST to \> 3 times upper limit of normal during the study.

Participant flow

Recruitment details

Patients were enrolled at 61 centers in 15 countries (Australia, Belgium, Canada, Czech Republic, France, Germany, Ireland, Israel, Italy, Japan, South Korea, , Spain, Switzerland, UK, and USA. The first patient started on 5 March 2008 and the last patient, last visit was on 01 April 2010.

Pre-assignment details

In total, 128 of the 615 patients who received randomized treatment in BUILD 3 (NCT00391443) rolled over into the BUILD 3 OL extension.

Participants by arm

ArmCount
Bosentan Treatment
Oral bosentan 62.5 mg twice daily (b.i.d.) for the first 4 weeks, and oral bosentan 125 mg b.i.d. (62.5 mg b.i.d. if \</= 40 kg) thereafter
128
Total128

Withdrawals & dropouts

PeriodReasonFG000
Overall StudyAdverse Event14
Overall StudyDeath18
Overall StudyPreparation for lung transplant8
Overall StudyWithdrew consent5

Baseline characteristics

CharacteristicBosentan Treatment
Age, Continuous65.4 years
STANDARD_DEVIATION 8.2
Age, Customized
18-40 years
1 participants
Age, Customized
41-60 years
33 participants
Age, Customized
61-70 years
62 participants
Age, Customized
>70 years
32 participants
Region of Enrollment
Australia
12 participants
Region of Enrollment
Belgium
1 participants
Region of Enrollment
Canada
14 participants
Region of Enrollment
Czech Republic
1 participants
Region of Enrollment
France
3 participants
Region of Enrollment
Germany
11 participants
Region of Enrollment
Ireland
1 participants
Region of Enrollment
Israel
4 participants
Region of Enrollment
Italy
2 participants
Region of Enrollment
Japan
8 participants
Region of Enrollment
Korea, Republic of
5 participants
Region of Enrollment
Spain
8 participants
Region of Enrollment
Switzerland
4 participants
Region of Enrollment
United Kingdom
3 participants
Region of Enrollment
United States
51 participants
Sex: Female, Male
Female
31 Participants
Sex: Female, Male
Male
97 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
— / —
other
Total, other adverse events
5 / 128
serious
Total, serious adverse events
51 / 128

Outcome results

Primary

Extent of Exposure to Bosentan in Patients With Idiopathic Pulmonary Fibrosis (IPF)

Mean extent of exposure to bosentan treatment in months

Time frame: Start of study to end of study, up to 21 months

Population: For two patients, the exact treatment stop date was missing and the duration could not be calculated, but these patients received at least 345 and 127 days of open label (OL) treatment.

ArmMeasureValue (MEAN)Dispersion
Bosentan TreatmentExtent of Exposure to Bosentan in Patients With Idiopathic Pulmonary Fibrosis (IPF)6.4 monthsStandard Deviation 4.6
Secondary

Adverse Events (AE) Leading to Discontinuation of Study Drug.

Number of participants with at least one AE that led to permanent discontinuation of study treatment.

Time frame: Start to end of study, up to 21 months

Population: Study population

ArmMeasureValue (NUMBER)
Bosentan TreatmentAdverse Events (AE) Leading to Discontinuation of Study Drug.32 participants
Secondary

Number of Patients Exposed to Bosentan Over Time

Numbers of participants exposed to bosentan treatment over time

Time frame: Start to end of study, up to 21 months

Population: For two patients, the exact treatment stop date was missing and the duration could not be calculated, but these patients received at least 345 and 127 days of OL treatment, respectively.

ArmMeasureGroupValue (NUMBER)
Bosentan TreatmentNumber of Patients Exposed to Bosentan Over TimeFor at least 4 months74 Participants
Bosentan TreatmentNumber of Patients Exposed to Bosentan Over TimeFor at least 8 months44 Participants
Bosentan TreatmentNumber of Patients Exposed to Bosentan Over TimeFor at least 12 months17 Participants
Bosentan TreatmentNumber of Patients Exposed to Bosentan Over TimeFor at least 16 months7 Participants
Bosentan TreatmentNumber of Patients Exposed to Bosentan Over TimeFor at least 20 months2 Participants
Secondary

Occurrence of Liver Function Test (LFT: Alanine Aminotransferase (ALT) and Aspartate Aminotransferase (AST)) Abnormality.

Number of participants with an increase in ALT and/or AST to \> 3 times upper limit of normal during the study.

Time frame: up to 21 months, plus 24 hours after the end of study treatment

Population: Study population

ArmMeasureValue (NUMBER)
Bosentan TreatmentOccurrence of Liver Function Test (LFT: Alanine Aminotransferase (ALT) and Aspartate Aminotransferase (AST)) Abnormality.3 participants
Secondary

Treatment-emergent Serious Adverse Events (SAE)

Number of participants with at least one SAE during the study.

Time frame: up to 21 months plus 28 days after the end of study drug

Population: Study population

ArmMeasureValue (NUMBER)
Bosentan TreatmentTreatment-emergent Serious Adverse Events (SAE)51 participants

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