MedTrace Logo

The Effect of Inhaled Nitric Oxide on Pulmonary Gas-exchange in COPD

NCT04231760 · Status: NOT_YET_RECRUITING · Phase: PHASE1/PHASE2 · Type: INTERVENTIONAL · Enrollment: 80

Last updated 2026-05-06

No results posted yet for this study

Summary

Chronic Obstructive Pulmonary Disease (COPD) is a lung disorder commonly caused by smoking, which makes breathing more difficult. When COPD patients exercise, they are not efficient breathers and this leads to serious breathing difficulties, which often causes these patients to stop exercise at low intensities. Even though patients with a mild form of COPD have relatively well preserved lung function, they still have inefficient breathing during exercise. The investigators think that these individuals have problems exchanging fresh gas (i.e., oxygen) into the blood stream because of poor lung blood vessel function. The investigators will test whether inhaled medications, specifically nitric oxide, can improve lung blood vessel function and decrease breathing difficulties during exercise. With this research, the investigators will understand more about breathing efficiency and lung blood vessel function in individuals with mild COPD, and find out whether improving lung blood vessel function helps COPD patients breathe easier and exercise longer. Understanding the reasons behind the feeling of difficult breathing may lead to more effective therapy and improved quality of life in COPD patients.

Conditions

Interventions

DRUG

Inhaled Nitric Oxide

Inhaled nitric oxide, which consists of breathing medical grade air (21% O2) with 40 parts per million of nitric oxide.

DRUG

Placebo

Inhaled placebo, which consists of breathing medical grade air (21% O2).

Sponsors & Collaborators

  • University of Alberta

    lead OTHER

Principal Investigators

  • Michael Stickland, PhD · University of Alberta

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Model
CROSSOVER

Eligibility

Min Age
18 Years
Max Age
85 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2026-12-01
Primary Completion
2027-12-01
Completion
2028-02-01

More Related Trials

Entities

Drugs
Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT04231760 on ClinicalTrials.gov