Clinical trials
Respiratory clinical trials
Below are recruiting respiratory clinical trials, each written for real people, not researchers. We’re tracking 921 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT05075161RecruitingPhase 3
Pirfenidone to help prevent lung scarring in ARDS
This Phase 3 trial tests whether pirfenidone can prevent or reduce lung scarring (fibrosis) in adults with ARDS who are within about a week of their illness starting. It may help by lowering harmful inflammation and the body’s scarring response.
Milan, MIAges 18 years+ - NCT05030207Recruiting
Test a new CT scan method for lung cancer radiation planning
This study tests whether a real-time, breathing-adapted CT scan (called 4DCT) can be done safely and work well for planning radiation treatment for lung cancer. It may help make radiation planning more accurate while checking if the scan process is practical for patients.
Blacktown, New South WalesAges 18 years+ - NCT05063149RecruitingPhase 3
Bacterial lysate for preventing breathing infections in preterm infants
This study tests a medicine called a bacterial lysate, which might help prevent respiratory infections and wheezing in babies born early. It could reduce sickness and breathing problems in the first year of life.
Rotterdam, South HollandAges 1 month–2 months - NCT04959734Recruiting
Study of COVID-19 effects on emergency visits for infant lung infections
This study looks at how the COVID-19 era changed emergency department visits for young children with breathing problems, such as bronchiolitis or first-time viral wheeze. It may help doctors understand trends in these illnesses and plan better care during outbreaks.
LeicesterAges birth–2 years - NCT04987840Enrolling by invitation
Hospital program to reduce unnecessary lung culture tests in kids
This trial studies a hospital quality-improvement program that aims to use fewer “respiratory culture” tests in pediatric intensive care units (PICUs). It may help reduce unnecessary testing while maintaining good care for critically ill children.
Baltimore, MarylandAges Any age - NCT04658498Recruiting
Respiratory muscle training to help patients come off the ventilator
This trial studies whether exercises for breathing muscles can help people who are having a hard time coming off a breathing machine in the ICU. It may help you breathe with less ventilator support once your body is stable enough.
LeuvenAges 18 years+ - NCT04645602RecruitingPhase 2
Study of pembrolizumab and lenvatinib for lung papillomas
This early-phase trial tests how well pembrolizumab plus lenvatinib can treat respiratory papillomas that have spread to the lungs. It may help people whose lung disease is caused by human papillomavirus (HPV).
New Haven, ConnecticutAges 18 years+ - NCT04524091Recruiting
Predict breathing effort response to higher ventilator pressure
This trial looks at how much breathing effort changes when the ventilator uses a higher pressure in people who are recovering from ARDS. The goal is to predict who will respond better so care can be adjusted more safely and effectively.
San Martín, Buenos AiresAges 18 years+ - NCT04395937Recruiting
Study of gentle aerobic exercise to improve severe asthma control
This trial studies whether a lower-intensity aerobic exercise program (not maximal effort) can improve asthma symptoms and control. It is meant for adults with asthma who are still not well controlled despite current inhaler treatments.
Liège, LiegeAges 18–65 - NCT04461821Recruiting
Breath test to study disease in children
This study uses a special machine to analyze exhaled breath to learn about different illnesses in children and teens. It may help researchers find breathing “signals” that reflect conditions like breathing problems, nervous system issues, or new/worsening type 1 diabetes.
BaselAges Up to 22 years - NCT04462380Recruiting
AI study for patients after cardiac arrest
This trial uses artificial intelligence to analyze computerized reports from patients who have recovered from cardiac arrest. It aims to help doctors better understand and treat different causes of cardiac arrest.
NiceAges 18 years+ - NCT04448145Recruiting
Study why COVID lasts after recovery
This study looks at what factors may make COVID-19 symptoms or infection effects last after someone has recovered. It also collects certain body samples to better understand why this persistence happens.
New York, New YorkAges 7 years+ - NCT04273607RecruitingPhase 2/Phase 3
Test an ECMO approach without blood thinners for lung failure
This trial studies whether people on a breathing machine called VV-ECMO can be managed without routine blood thinners, to reduce bleeding risk. It is meant for adults with severe lung failure (ARDS) and checks that it is safe for you to avoid anticoagulation.
Toronto, OntarioAges 18 years+ - NCT04270045Recruiting
Breathing test in babies with bronchopulmonary dysplasia
This trial studies a breathing measurement test (forced oscillometry) in babies who were born early and have bronchopulmonary dysplasia (BPD), a long-term lung condition. It may help doctors better understand how babies’ lungs are working and guide future care.
Kansas City, MissouriAges Any age - NCT04263038RecruitingPhase 4
Watchful waiting versus blood thinners for small lung clots
This trial compares close monitoring (“watch and wait”) versus taking the blood thinner rivaroxaban in people with a small type of lung blood clot. It aims to find out whether low-risk patients can safely avoid or reduce anticoagulation while still staying healthy.
Woluwe-Saint-Lambert, Brussels CapitalAges 18 years+ - NCT04258774Enrolling by invitation
Breathing challenge during MRI to test brain blood-flow signals
This study uses a breathing challenge while you’re in an MRI to see how blood flow signals in the brain change. It may help researchers better understand how brain imaging signals respond to breathing and oxygen/carbon dioxide levels.
St Louis, MissouriAges 18 years+ - NCT04369599Enrolling by invitation
Test chest vibration during ventilation for severe lung failure
This study looks at whether a special chest “vest” and related lung measurements can improve breathing in people with sudden severe lung failure who need a breathing machine. You may be eligible if you have ARDS and can safely use the vest during mechanical ventilation.
Atlanta, GeorgiaAges 18 years+ - NCT04221737Recruiting
Early breathing support for ARDS using a pressure release ventilator
This study looks at starting a specific type of breathing machine setting early in people with ARDS (a serious lung problem) to see if it improves outcomes. You might be able to take part if you are within 48 hours of needing a breathing tube and meet the lung oxygen criteria.
Guadalajara, JaliscoAges 18–80 - NCT03808922RecruitingPhase 3
DAS181 treatment for COVID-19 lung infection in immune-compromised adults
This Phase 3 trial tests DAS181 to treat lower lung (chest) viral infections in people with weakened immune systems, including a COVID-19 subgroup. It may help by targeting certain viruses in the lungs, but joining depends on your oxygen needs, recent diagnosis, and other safety factors.
Duarte, CaliforniaAges Any age - NCT03758508Recruiting
Noninvasive breathing support versus high-flow oxygen for pneumonia
This study compares two ways to help breathing in adults with pneumonia who have low oxygen levels: a noninvasive breathing machine versus high-flow oxygen. It aims to see which option helps patients breathe better and avoid getting worse.
MilanAges 18 years+ - NCT03683186Enrolling by invitationPhase 3
Long-term study of ralinepag for pulmonary hypertension
This study follows people with pulmonary arterial hypertension (PAH) to see how safe and effective ralinepag is over the long term. It may help your care team understand what to expect from continued treatment and monitoring.
Phoenix, ArizonaAges 18 years+ - NCT03319446Enrolling by invitation
Sharing anonymous samples for a diagnostic test
This trial collects and stores anonymous samples from consenting adults. It helps researchers evaluate or improve diagnostic testing without using your personal identity.
Salt Lake City, UtahAges 18–99 - NCT03422302Recruiting
CPAP or breath-holding to reduce lung tumor motion
This study looks at whether using a CPAP breathing device or deep breath-holding can keep lung tumors from moving during targeted radiation. The goal is to improve safety and accuracy of stereotactic body radiation for lung cancer.
Houston, TexasAges 18 years+ - NCT03093909RecruitingPhase 1
Breathing treatment with gemcitabine for lung cancer spread
This early-stage trial studies an inhaled (aerosol) form of gemcitabine to treat solid tumors that have spread to the lungs. It aims to see whether this lung-focused treatment is safe and how well it might work when standard curative options are not available.
Houston, TexasAges 12–50
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Common questions
- Are there clinical trials for respiratory?
- Yes. Clin2 currently lists 921 recruiting respiratory studies from the U.S. registry, each rewritten for real people, not researchers, so you can see what it’s testing and who it’s for.
- How do I know if I qualify for a respiratory trial?
- Each study lists its eligibility criteria — rules about age, diagnosis, and prior treatments. On every Clin2 trial page we explain these in words written for real people and offer a short, optional pre-screen for a fit read. The study team makes the final decision.
- Does it cost anything to join a respiratory trial?
- Using Clin2 is always free. Many trials cover the cost of the study treatment and related visits; some reimburse travel. The study team explains exactly what’s covered before you decide.
Related conditions
Clin2 helps you find and understand clinical trials and does not provide medical advice. Study data comes from ClinicalTrials.gov. Talk with your doctor about whether a specific trial is right for you.