Trial of Iloprost in Pulmonary Hypertension Secondary to Pulmonary Fibrosis

Study Overview
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Brief Summary
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Idiopathic pulmonary fibrosis(IPF) is chronic progressive fibrosing lung disease of unknown cause. There is no effective therapy yet for this disease and the mean survival in most reports is about 3 years after the diagnosis. Because of the stiff fibrosis of the lung, pulmonary hypertension is the late complication of IPF and its development heralds a very poor outcome of the patients. For the primary pulmonary hypertension, recently the effective drugs have been available. However, there is no study about the efficacy of these drugs in the patients with pulmonary hypertension secondary to pulmnary fibrosis, and the aim of this trial is to study the safty and efficacy of Iloprost, one of the safe and effective drugs in primary pulmonary hypertension.

Detailed Description
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Prospective open labeled observational study Subjects: About 15 patients with secondary pulmonary hypertension due to IPF or pulmonary fibrosis associated with collagen vascular diseases. Method: 3 month trial of inhaled iloprost. Check the safty and measure the pulmonary arterial pressure by right heart catheterization, exercise capacity by 6 minute walking test, echocardiography, and quality of life questionnaires before and after the trial.

Official Title
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Inhaled Iloprost in Pulmonary Hypertension Secondary to Pulmonary Fibrosis

Conditions
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Pulmonary Fibrosis, Pulmonary Hypertension

Intervention / Treatment
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* Drug: Iloprost inhalation


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Diagnosis of idiopathic pulmonary fibrosis or fibrotic NSIP according to American Thoracic Society and European Respiratory Society guidelines by biopsy and diagnosis of pulmonary fibrosis associated with connective tissue disease. Mean pulmonary artery pressure over 30mmHg. NYHA functional class II to IV Exclusion Criteria: Suffering lung diseases other than pulmonary fibrosis (COPD, Pulmonary Thromboendarterectomy ). Administration of prostanoids, bosentan, beta- blocker or phosphodiesterase5 inhibitor. Dosage adjustment of calcium channel blockers within 6 weeks. Resting pulmonary capillary wedge pressure over 15mmHg. Bleeding tendency. Bilirubin level above 3mg/dl or creatinine clearance level below 30ml/min. Unstable angina pectoris, myocardial infarction or severe arrhythmia within 6 months. Cerebrovascular accident within 6 months. Present lung infection.

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Non-Randomized
Intervention Model: Single Group Assignment
Masking: None (Open Label)


Arms and Interventions

| Intervention/Treatment |
| --- |
|Drug: Iloprost inhalation|nan|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Safety |  |  | 
| Pulmonary arterial pressure |  |  | 
| Exercise capacity (6 minute walking test) |  |  | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| 6 minute walking test: Min. oxygen saturation. |  |  | 
| NYHA class, |  |  | 
| Quality of life (St. George Respiratory questionnaires) |  |  | 
| Pulmonary vascular resistance, cardiac output. |  |  | 
| Increment of pulmonary arterial pressure after the exercise |  |  | 
| 6) Pulmonary function test |  |  | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Pulmonary fibrosis, pulmonary hypertension, Iloprost, Efficacy