Clinical trial Recruiting at 1 site Interventional Ages 40 to 75

Using inhaled nitric oxide to improve exercise capacity in COPD patients

Official title: Efficacy and Safety of Inhaled Nitric Oxide in Patients With Moderate-to-severe Chronic Obstructive Pulmonary Disease: a Prospective, Single-center Clinical Trial

Run by The First Affiliated Hospital with Nanjing Medical University · NCT05896800 · Data updated 2026-11-12

This study is testing if inhaled nitric oxide can help people with moderate to severe COPD exercise better and feel safer while doing it.

Quick facts

Study typeInterventional
Ages40 Years to 75 Years
SexAll
Enrollment24 (estimated)
SponsorThe First Affiliated Hospital with Nanjing Medical University
Academic / other
Locations1 site (Nanjing, Jiangsu)
StatusRecruiting
StartedJune 1, 2023
Main results expectedDecember 31, 2025
Study endsJune 30, 2026
Registry record updatedJune 18, 2025
Trial IDNCT05896800 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are adults aged 40 to 75 with a history of smoking and diagnosed with moderate to severe COPD.

Probably not a fit

Patients with asthma or other non-COPD respiratory diseases, or those with significant heart conditions, may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This study evaluates the effects of inhaled nitric oxide (iNO) on exercise capacity and safety in patients with moderate to severe Chronic Obstructive Pulmonary Disease (COPD). Participants will receive iNO at doses of 10 ppm or 40 ppm for two hours daily over a week. The goal is to identify safe and effective treatment methods for COPD, focusing on improving patients' ability to exercise. The study will include assessments of lung function and overall health during the treatment period.

Why it matters

Potential benefit: If successful, this treatment could enhance exercise capacity and overall quality of life for COPD patients.

How similar studies have gone: While the use of inhaled nitric oxide has been explored in various respiratory conditions, this specific application in COPD is relatively novel.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Age ≥ 40 years, ≤ 75 years;
2. Previous smoking history ≥ 10 pack-years, and had stopped smoking for one month before study entry;
3. Met the diagnosis criteria of moderate and severe COPD: a post-bronchodilator FEV1/FVC \< 0.7, and 30%\< FEV1 \< 80% predicted;
4. Signed informed consent and performed all the study mandated procedures.

Exclusion Criteria:

1. Pregnant or lactating women;
2. Current or recent month user of nicotine-like substances (including nicotine patches, etc.);
3. A diagnosis of asthma or other non-COPD respiratory disease, in the opinion of the Investigator;
4. Lack of patency of nares upon physical examination;
5. Experienced during the last month an exacerbation requiring start of or increase in systemic oral corticosteroid therapy;
6. Left ventricular systolic dysfunction: left ventricular ejection fraction (LVEF) \< 50%;
7. Clinically significant valvular heart disease, including aortic valvular disease (moderate or severe aortic stenosis or regurgitation) and/or mitral valve disease (moderate or severe mitral stenosis or regurgitation), or status post mitral valve replacement;
8. Use within 30 days of screening or current use of approved pulmonary hypertension medications such as sildenafil, bosentan or prostacyclines;
9. Use of investigational drugs or devices within 30 days prior to enrollment into the study;
10. Any underlying medical or psychiatric condition that, in the opinion of the Investigator, makes the subject an unsuitable candidate for the study.

Where it's running

  • The First Affiliated Hospital with Nanjing Medical University
    Nanjing, Jiangsu, China
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.