Inhaled NO in IPF and COPD During 6 Minute Walk Test

Study Overview
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Brief Summary
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Our objective is to evaluate the influence of inhaled NO on the saturation and exercise capacity of patients with COPD and IPF. each participant will undergo two six minute walk tests, one with inhaled NO and the other with placebo.

Detailed Description
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This is a randomiized, placebo controlled trail that will evaluate the influence of inhaled NO (INO) on the saturation and exercise capacity of patients with COPD and IPF. All patients will sign a consent form before enrolment. Each patient will undergo two six-minute walk tests. Whether the INO will be used in the first or the second trial will be determined by computer generated randomization with random numbers sealed in opaque envelops. For the placebo 6-minute test we will use placebo cartridges in the INO generator, for INO 6-minute test we will use NO cartridges. The treatment with INO or placebo will start 20 minutes before the 6-minute walk test and will end at the end of the 6-minute walk test. Between tests a time interval of at least 60 minutes will be kept. During the test, the patients' pulse and saturation level will be monitored with a pulse oximetry. The data will be recorded continuously from baseline to 5 minutes after the test is over. The distance the patient walked will also be recorded. Patients that require supplemental oxygen will perform the tests with oxygen supplementation. Dosing The NO dosing will be fixed. The first 10 patients will be treated with INO at a dose of 45 parts per million (ppm) per kilogram (kg). from patient 10 to 20 a dose of 75 ppm per kg will be given and from patient 20-100 a dose of 115 ppm per kg will be given.

Official Title
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The Influence of Inhaled Nitric Oxide on Oxygen Saturation of Patients With COPD and IPF During Six Minute Walk Test.

Conditions
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COPD, IPF, Inhaled Nitric Oxide, Six Minute Walk Test, Oxygen Saturation

Intervention / Treatment
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* Drug: Inhaled nitric oxide


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Patients with COPD with disease severity of GOLD stage 3-4 Patients with IPF with a Forced vital capacity under 80% and a diffusion capacity under 60% Ambulatory patients that can perform a 6-minute walk test Exclusion Criteria: Patients with moderate to severe heart failure - EF < 40% Patients with severe PVD or scleroderma

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: Randomized
Intervention Model: Parallel Assignment
Interventional Model Description: RCT, placebo controlled
Masking: Single


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: COPD<br>Each participant will undergo two six minute walk tests and the results will be compared within each subject. | Drug: Inhaled nitric oxide<br>* Inhaled nitric oxide delivered through a pulsatile nitric oxide drug delivery system<br>|
| Experimental: IPF<br>Each participant will undergo two six minute walk tests and the results will be compared within each subject. | Drug: Inhaled nitric oxide<br>* Inhaled nitric oxide delivered through a pulsatile nitric oxide drug delivery system<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Saturation level during the test | AUC of the saturation value during six minute walk test | 26 minutes |