Pulmonary hypertension

This study tests whether tadalafil, a drug often used for erectile dysfunction, can help people with group 2 pulmonary hypertension (high blood pressure in the lungs). About 48 participants will take tadalafil or a placebo for 12 weeks. Researchers will measure how far they can w…

This trial asks whether one way of setting a breathing machine is better than another for children born with a hole in the heart who are having surgery to close it. The hole lets extra blood flow to the lungs, which can make them stiff and harder to inflate. During surgery, a mac…

This study tests whether taking date cider vinegar daily, alone or combined with 5:2 intermittent fasting, can improve cholesterol and other metabolic measures in adults with prediabetes and mild to moderate high cholesterol or blood pressure. Participants are randomly assigned t…

This Phase 2 trial tests whether satralizumab, an antibody that blocks IL-6 (a protein involved in inflammation), can improve blood flow in the lungs of people with pulmonary arterial hypertension (PAH). The study includes 20 adults in Japan who have high IL-6 levels and haven't …

This trial tests whether a prehabilitation program — including exercise, education, and breathing techniques — helps people recover faster after planned heart surgery. The study enrolls adults scheduled for surgery for coronary artery disease, valve problems, or other heart condi…

This study tests whether a new generic tablet containing selexipag works the same as the brand-name drug Uptravi. Healthy adults aged 18 to 55 take a single dose of each version under fed conditions, and researchers compare how much drug gets into the bloodstream. The goal is to …

This study investigates whether eccentric cycling—where the pedals resist the rider's effort, similar to walking downhill—can improve exercise capacity in people with heart or lung conditions. Unlike normal cycling, eccentric cycling demands less oxygen, which may allow patients …

This phase 2 trial investigates whether metformin, a standard diabetes medication, can improve lung blood pressure and exercise ability in people with heart failure with preserved ejection fraction (HFpEF) and pulmonary hypertension. Participants take metformin or a placebo for 1…

This study tested a new oral drug called ralinepag in 687 adults with pulmonary arterial hypertension (PAH), a serious lung condition that makes the heart work harder. Participants took ralinepag or a placebo on top of their usual PAH medications. The main goal was to see if rali…

This study tested a drug called sotatercept (MK-7962) in 46 Japanese adults with pulmonary arterial hypertension (PAH), a serious lung condition that makes the heart work harder. Participants took the drug alongside their usual treatments. The main goals were to see if it improve…

This study tested whether a natural hormone called DHEA can improve exercise ability in adults with COPD and high blood pressure in the lungs. 51 participants took either a low or high dose of DHEA or a placebo daily for one year. The main goal was to see if DHEA helped them walk…

This study tested whether a daily dose of the hormone DHEA can help adults with COPD who also have high blood pressure in their lungs. Sixty participants took either DHEA or a placebo for one year. Researchers measured how far they could walk in six minutes and checked heart and …

This study tested a device called the Atrial Flow Regulator (AFR) in 32 people with severe pulmonary hypertension, a condition of high blood pressure in the lungs. The device creates a small, controlled hole in the heart to relieve pressure. The main goal was to check safety and …

This study looked at whether bosentan (Tracleer) can reduce the thickness of lung artery walls in people with a type of high blood pressure in the lungs (pulmonary arterial hypertension, or PAH). Eleven adults with PAH took bosentan for 6 months. Researchers measured artery wall …

This study tested a drug called sotatercept in 173 people with severe pulmonary arterial hypertension (PAH), a serious lung condition that makes the heart work too hard. Participants received either the drug or a placebo on top of their usual treatments. The goal was to see if th…

This study tested an inhaled medication called seralutinib in 390 adults with pulmonary arterial hypertension (PAH), a serious lung condition that makes it hard to breathe and limits physical activity. The goal was to see if the drug improves how far patients can walk in six minu…

This study tested the drug macitentan in 7 Japanese children aged 3 months to 15 years with pulmonary arterial hypertension (PAH), a condition where high blood pressure in the lungs strains the heart. The goal was to see if the drug improves blood flow and heart function after 24…

This study tested the drug spironolactone in 15 adults with chronic right-sided heart failure. The goal was to see if it is safe and can improve heart function and reduce stress on the heart. Participants took either the drug or a placebo to compare effects.

This study looked at the long-term safety of an inhaled medication called treprostinil palmitil (TPIP) for people with pulmonary hypertension caused by interstitial lung disease. Thirty-one adults who completed a previous study took part. The main goal was to check for side effec…

This study looked at the safety of using levosimendan over a longer period in people who have both pulmonary hypertension and heart failure with preserved ejection fraction. 35 patients who had already been in a related study received the drug and were monitored for side effects.…

This study tested a single intravenous infusion of stem cells from donated umbilical cord tissue in one person with severe scleroderma that had caused lung scarring and high blood pressure in the lungs. The goal was to see if the treatment could improve lung function, exercise ab…

This study tested whether the drug sotatercept, given for 36 weeks, improves how the heart and lungs work during exercise in people with pulmonary arterial hypertension (PAH). Thirty adults with PAH received injections of sotatercept. Researchers measured heart pressure, blood fl…

This Phase 2 trial tested a drug called sotatercept in 164 adults with a type of high blood pressure in the lungs caused by heart failure. The study compared sotatercept to a placebo to see if it could improve blood flow and walking distance. The goal is to find a better treatmen…

This study looked at how the drug CS1 changes the structure of small lung arteries in people with pulmonary arterial hypertension (PAH). Seven patients already taking CS1 in an expanded access program had special CT scans at the start and after 12 months. The goal was to see if C…

This phase 2b trial tested an inhaled powder form of treprostinil palmitil in 102 adults with pulmonary arterial hypertension (PAH), a condition where high blood pressure in the lungs makes it hard to breathe. The study compared the drug to a placebo to see if it could lower lung…

This study tested the drug macitentan in 165 children with pulmonary arterial hypertension (PAH), a serious lung condition. The children were randomly assigned to receive macitentan or standard care. The main goal was to see how the drug behaves in the body and whether it is safe…

This completed phase 3 trial tested whether giving children with pulmonary hypertension two drugs (sildenafil and bosentan) from the start works better than just one drug (sildenafil alone). The study enrolled 28 children who had not yet received long-term treatment. Researchers …

This study tested two drugs, levosimendan and dobutamine, in 52 adults undergoing heart valve replacement. The goal was to see which one better preserves right ventricular function after surgery. Patients were randomly assigned to receive one of the drugs, and their heart functio…

This study tested a drug called riociguat in 10 adults who still had trouble exercising at least 6 months after surgery for chronic blood clots in the lungs. The goal was to see if the drug could improve blood pressure in the lungs and make exercise easier. Participants took the …

This study tested an inhaled medication called treprostinil in 5 people with sarcoidosis who also have lung scarring and high blood pressure in the lungs. The goal was to see if the drug could improve blood flow and heart function. Participants took the drug and were monitored wi…

This study tested the drug dapagliflozin (used for diabetes and heart failure) in 52 adults with pulmonary arterial hypertension (PAH) or chronic thromboembolic pulmonary hypertension. The goal was to see if it improves exercise capacity and heart function. Participants took the …

This pilot study tested a procedure called pulmonary artery denervation (PADN) in 30 adults with combined high blood pressure in the lungs and chronic heart failure. The procedure uses radiofrequency energy to disrupt certain nerves in the lung's blood vessels, aiming to lower pr…

This study tested whether a single pill containing two drugs (macitentan and tadalafil) works better than taking either drug alone for people with pulmonary arterial hypertension (PAH), a serious lung condition. 187 adults with PAH took either the combination pill or one of the s…

This study looked at two ways of giving the drug sotatercept to people with pulmonary arterial hypertension (PAH), a condition where lung blood vessels narrow, making it hard to breathe. Researchers compared a standard weight-based dose to a simpler weight-banded dose to see how …

This study looked at how an inhaled drug called treprostinil helps patients with pulmonary hypertension caused by interstitial lung disease. Researchers measured heart function and breathing efficiency during exercise after 3 months of treatment. The goal was to understand how th…

This study tested whether DHEA, a natural hormone, can improve heart function in people with pulmonary arterial hypertension (high blood pressure in the lungs). 26 adults took DHEA or a placebo for 18 weeks, then switched. The main goal was to see changes in heart strain measured…

This large Phase 3 study tested whether selexipag, a daily pill, can delay serious complications or death in people with pulmonary arterial hypertension (PAH), a rare condition of high blood pressure in the lungs. Over 1,100 adults with PAH received either selexipag or a placebo.…

This small study tested whether L-glutamine, a common supplement, can reduce high blood pressure in the lungs of adults with non-transfusion-dependent thalassemia. Eight participants took either glutamine plus standard care or standard care alone for 60 days. The main goal was to…

This study looked at the long-term safety of the drug riociguat (Adempas) in adults with pulmonary arterial hypertension (PAH), a type of high blood pressure in the lungs. It included 18 people who had already taken riociguat in earlier Bayer studies. The main goal was to track s…

This study tested a procedure called pulmonary artery denervation (PADN) for people with pulmonary arterial hypertension (PAH), a condition where blood pressure in the lungs is dangerously high. 128 adults received either the real procedure or a sham (fake) procedure. The goal wa…

This study tested an experimental drug called AZD3427 in 260 adults with heart failure and a type of high blood pressure in the lungs (pulmonary hypertension). The goal was to see if the drug could lower pressure in the lung's blood vessels after 24 weeks of treatment. Participan…

This study tested a new drug called ACT-293987 (NS-304) in 43 adults with pulmonary arterial hypertension (PAH), a condition where high blood pressure damages the lungs. The trial had two parts: first, a single dose to check how it affects blood flow, then 21 weeks where some peo…

This study explores whether a cardiac MRI can safely and effectively gather the same heart pressure and flow measurements normally obtained through right heart catheterization, a more invasive procedure. Researchers will attempt to perform the catheterization inside the MRI machi…

This study compares cardiac MRI to the standard right heart catheterization for monitoring people with pulmonary arterial hypertension (PAH), a condition that strains the heart. Researchers want to see if the non-invasive MRI can reliably detect when a patient's condition is wors…

This study tested whether a special MRI technique called 4D flow can accurately measure blood pressure in the lungs of people with pulmonary hypertension. 28 patients had both the MRI and the standard invasive catheterization to compare results. If the MRI proves reliable, it cou…

This completed study looked for specific molecules in the blood (called microRNAs) that could help detect pulmonary hypertension (PH) early. Researchers analyzed blood samples from 907 participants who had or were scheduled for a right heart catheterization, the standard diagnost…

This study looked at whether a 10-week supervised aerobic exercise program can help people with pulmonary hypertension (high blood pressure in the lungs) become more active and feel better. About 97 participants, including healthy volunteers and patients, took part. Patients were…

This study looks at whether low-resistance exercise (like light strength training) can safely help people with pulmonary arterial hypertension (PAH) feel better and be less frail. About 20 adults with stable PAH will try the program. Researchers will track safety, how well people…

This study tested a single dose of an investigational drug called RT234 in 42 adults with pulmonary arterial hypertension (PAH), a condition that makes it hard to exercise due to high blood pressure in the lungs. The main goals were to see if the drug is safe and if it improves e…

This study tested an inhaled medication called RT234 in 14 adults with pulmonary arterial hypertension (PAH), a condition where blood pressure in the lungs is dangerously high. The goal was to see if the drug could quickly lower lung blood pressure during a heart catheterization …

This study tested a dynamic blended learning module for 49 people with pulmonary hypertension, a chronic disease causing symptoms like shortness of breath and fatigue. The program included face-to-face education, regular phone follow-ups, and a video from a patient who successful…

This study looked at whether giving extra oxygen to people who live high in the mountains and have high altitude pulmonary hypertension (a type of high blood pressure in the lungs) helps them walk farther. Twenty-four participants completed the trial. Researchers measured how far…

This study compared the short-term effects of active video games versus traditional exercise in 16 adults with pulmonary hypertension. Participants did both types of exercise on separate days, and researchers measured heart rate, blood pressure, oxygen levels, and enjoyment. The …

This study tested whether people with pulmonary vascular disease (problems with blood vessels in the lungs) can walk the same distance in 6 minutes without extra oxygen as they can with it. 40 adults who had low oxygen levels during exercise did two walk tests—one breathing norma…

This study tested whether slow-paced breathing at home can help people with pulmonary arterial hypertension (PAH) manage symptoms like shortness of breath, fatigue, and poor sleep. Forty-two adults with stable PAH took part, with one group adding slow breathing exercises to their…

This study tested whether metformin, a common diabetes drug, along with a text-message activity program, could help people with pulmonary artery hypertension (PAH) walk farther and feel better day-to-day. 73 adults with PAH took part. The goal was to see if these interventions im…

This study tested whether 8 weeks of inspiratory muscle training (breathing exercises using a device) could improve exercise capacity in 32 people with pulmonary hypertension. Participants were randomly assigned to either active training or a placebo version. The goal was to see …

This study measured how common pulmonary hypertension (high blood pressure in the lungs) is in adults with sickle cell anemia. Nearly 1,000 participants had heart ultrasounds and blood tests, then were contacted by phone for up to 3 years to track their health. The goal was to un…

This completed Phase 1 study looked at 27 people with and without pulmonary hypertension to learn more about how blood vessel problems contribute to the disease. Researchers used heart catheterization, imaging, and blood tests to find biomarkers and understand disease mechanisms.…

This trial tests whether an Apple Watch paired with a special app can accurately measure how far people with pulmonary arterial hypertension (PAH) can walk in six minutes — both in the clinic and at home. Researchers want to see if daily home-based walk tests can detect changes i…

This study followed 72 adults with pulmonary hypertension caused by chronic lung diseases, like interstitial lung disease, who were treated with inhaled iloprost in routine care. Researchers tracked changes in their risk levels over time using a standard scoring model. The goal w…

This study tested whether a new 3D ultrasound technique can predict how well patients with pulmonary hypertension will do. Researchers followed 150 patients for six months, collecting heart images and tracking deaths and hospitalizations. The goal was to see if this non-invasive …

This study tested a skin sensor that measures carbon dioxide (CO2) levels continuously during exercise, comparing it to standard blood tests. Researchers included 140 healthy volunteers and people with lung or heart conditions. The goal was to see if the sensor could accurately t…

This study reviewed the records of 150 adults who had surgery to clear blood clots from the lung arteries. Researchers wanted to see who developed kidney injury within two days after surgery and what factors raised that risk. They looked at things like how long the patient was on…

This study tested a new way for doctors to discuss CPR with older, seriously ill patients and their families. Instead of the usual conversation, doctors followed a step-by-step guide that focused on the patient's values and explained why CPR might not help. The goal was to see if…

This study tested whether a special type of CT scan (dual energy CT) can help doctors better understand and predict the severity of pulmonary hypertension, a condition of high blood pressure in the lungs. Researchers looked at lung images from 60 adults already diagnosed with the…

This study looked at ways to screen for pulmonary hypertension (high blood pressure in the lungs) in people who already have interstitial lung disease. The goal was to find this complication earlier. 314 adults with various types of lung disease took part in the screening tests.

This study looked at 46 infants under 2 years old in the pediatric ICU with severe bronchiolitis. Researchers used a heart ultrasound measure called TAPSE to see if it could predict how long babies needed intensive care. The goal was to find a simple test that helps doctors plan …

This study looked at how using high-flow nasal oxygen during laryngeal surgery affects the heart and blood vessels. Twenty relatively healthy adults were monitored for changes in heart function compared to standard breathing support. The goal was to understand potential risks, no…

This study tested whether a protocol that measures how well people with pulmonary hypertension perform everyday tasks (like arranging objects and walking with weights) is valid and reliable. Forty adults with the condition completed the five-station test twice. The goal was to se…

This study measured levels of an inflammatory protein called HMGB1 in 74 children with congenital heart disease and pulmonary hypertension. Researchers compared these levels to those in children with heart disease alone and healthy controls. The goal was to see if inflammation pl…

This study tested how well an Apple Watch measures heart and fitness data compared to standard medical equipment. About 50 adults with heart conditions or athletes wore the watch during exercise. The goal was to see if smartwatches can reliably help monitor heart disease.

This study looked at whether a special MRI scan (4D Flow) can accurately measure blood flow to the lungs in people with both congenital heart disease and pulmonary hypertension. The standard test for this is a heart catheterization, which is invasive and uncomfortable. The study …

This study tested a special MRI that uses inhaled xenon gas to take detailed pictures of lung function in people with pulmonary arterial hypertension (PAH). Ten adults with PAH had four scans over 18 weeks to see how their lungs processed the gas. The goal was to find new ways to…

This study looked at 623 adults with heart failure or high blood pressure in the lungs to see how well different tests measure pressure inside the heart. Doctors used both non-invasive ultrasound (echocardiogram) and invasive catheter measurements to check for elevated filling pr…

This study looked at whether cardiac MRI can accurately measure right heart function in 112 people with pulmonary arterial hypertension. Researchers compared MRI results with data from invasive heart catheterization. The goal was to see if MRI could be used to monitor disease and…

This completed study looked at how the immune system might affect the outlook for people with pulmonary arterial hypertension (PAH). Researchers took blood and skin samples from 629 participants with different types of PAH to search for specific antibodies. The goal was to better…

This study tested whether a pop-up alert in the electronic health record could remind doctors to screen for a rare but serious lung condition called chronic thromboembolic pulmonary hypertension (CTEPH) in patients who previously had a blood clot in the lungs. The trial involved …

This completed study gave 22 healthy men a single dose of semaglutide (Rybelsus) or a placebo pill to see how it affects cortisol and other stress hormones. The goal was not to treat any disease, but to learn more about how GLP-1 drugs interact with the body's stress system. Part…

This study looked at how closely 227 adults with precapillary pulmonary hypertension follow their prescribed diuretic (water pill) regimen. Researchers used questionnaires and pharmacy records to measure adherence and identify reasons for missed doses. The goal is to understand n…

This study looked at 24 people with high-altitude pulmonary hypertension who live above 2500 meters. Researchers measured their sleep breathing at 3200 meters and again after moving to 760 meters. The goal was to see if lower altitude improves oxygen levels and reduces breathing …

This study looked at 24 people with high altitude pulmonary hypertension who live above 8,200 feet. Researchers measured how far they could walk in 6 minutes at their home altitude (10,500 feet) and after moving to a lower altitude (2,500 feet). The goal was to see if relocating …

This study looked at 24 people with high altitude pulmonary hypertension (HAPH) who live above 2,500 meters. Researchers measured their lung blood pressure at 3,200 meters and then after moving to 760 meters for one night and seven nights. The goal was to see if simply being at a…

This study looked at 43 adults with scleroderma or unexplained pulmonary arterial hypertension (PAH) to understand why the right side of the heart weakens. Researchers collected blood and tissue samples during routine procedures and measured heart function over 6 months. The goal…

This completed study looked at whether a new ultrasound score called VExUS can help doctors better assess risk in people with pulmonary arterial hypertension (PAH). Researchers measured VExUS in 86 adults and compared it to standard tests like heart catheterization and blood mark…

This study tested whether a device called MYOTRACE, which measures how hard a person's breathing muscles are working, can help doctors assess patients with respiratory diseases. 56 adults with conditions like COPD or asthma were included. The goal was to see if the device's readi…

This study looked at whether giving extra oxygen can lower blood pressure in the lungs of people who live above 2500 meters and have high altitude pulmonary hypertension. Researchers measured heart changes with ultrasound in 48 highlanders while they breathed either oxygen or reg…

This study tested a new self-administered questionnaire called DYSLIM to measure shortness of breath and its impact on daily life in people with chronic respiratory diseases like COPD, cystic fibrosis, and pulmonary hypertension. Researchers enrolled 199 participants to check if …

This study tested a step-by-step method called SEARCH to better classify what happens to people long after a pulmonary embolism (a blood clot in the lungs). Researchers looked at 150 adults to see if the method reliably identifies different outcomes, from full recovery to chronic…

This study looked at whether breathing in nitroglycerin (a medicine that opens blood vessels) is safe and effective for people with pulmonary arterial hypertension (PAH), a condition where lung blood vessels narrow. Twenty adults with PAH took part. The goal was to see if the spr…

This early-stage study looked at whether people with pulmonary arterial hypertension (PAH) have low carnitine levels and if taking carnitine supplements could help. Ten adults with PAH kept food diaries and had blood tests to measure carnitine. The goal was to gather information …

This study reviewed medical records of 59 adults with COPD to see if a standard pulmonary rehabilitation program is safe and effective for those who also have pulmonary hypertension (high blood pressure in the lungs). Researchers compared how much walking distance improved in peo…

This early-phase trial tested the safety and how the body processes an inhaled form of vardenafil (RT234) in 31 healthy adults. Participants received single and multiple doses of the drug via an inhaler or as a pill. The study is complete and focused on side effects and drug leve…

This completed Phase 1 study looked at how two drugs, BIA 5-1058 and furosemide, affect each other when taken together. 44 healthy adults received each drug alone and then together, under fasting conditions. The goal was to measure drug levels and safety, not to treat any disease…

This completed study looked at 1,200 pregnant women with pulmonary hypertension (high blood pressure in the lungs) to see if long-term exposure to air pollution raises the risk of serious pregnancy complications like heart failure or death. Researchers analyzed medical records an…