Pulmonary arterial hypertension

This phase 2 study tests whether spironolactone, a drug already used for fluid retention, can improve exercise capacity and blood vessel function in people with pulmonary arterial hypertension (PAH). About 70 adults with PAH will receive either spironolactone or a placebo for 24 …

This trial is testing an experimental drug called HS235, given as a shot under the skin, in adults with pulmonary arterial hypertension (PAH), a condition where high blood pressure in the lungs makes it hard to breathe and can strain the heart. The study aims to see if adding HS2…

This study tests whether empagliflozin, a diabetes medicine, can improve right heart function in 78 adults with pulmonary arterial hypertension (PAH). Participants continue their usual PAH treatments and receive either empagliflozin or a placebo. The main goal is to see if the dr…

This long-term study follows people with pulmonary arterial hypertension (PAH) who previously took part in sotatercept trials. Sotatercept is a targeted therapy that aims to stop PAH from getting worse. Researchers will monitor safety, side effects, and how well patients tolerate…

This study tests an experimental oral drug called ROC-101 in 40 adults with pulmonary arterial hypertension (PAH) or pulmonary hypertension linked to interstitial lung disease (ILD-PH). Participants take the drug alongside their standard care for 24 weeks, with a long-term follow…

This study tests an experimental drug called REGN13335 in 99 adults with pulmonary arterial hypertension (PAH), a condition where high blood pressure in the lungs makes the heart work harder. Participants will receive either the drug or a placebo, on top of their usual PAH medica…

This early-phase trial tests an experimental antibody called DIAG723 in 93 adults with hereditary hemorrhagic telangiectasia (HHT), a condition that causes abnormal blood vessels and frequent nosebleeds. The study will check if the drug is safe and how the body processes it, with…

This study follows 280 adults and children with pulmonary hypertension who are already taking macitentan or selexipag in a previous trial. The goal is to monitor long-term safety, including side effects and serious events, while allowing continued access to the medication. Partic…

This early-stage trial tests whether transplanting gut bacteria from healthy donors, along with antibiotics and fiber, is safe for people with pulmonary arterial hypertension (PAH). 24 adults with PAH will be randomly assigned to receive either the bacteria capsules or a placebo.…

This early-stage study tests a new way to use a heart-lung machine (ECMO) in 4 people waiting for a lung transplant who also have heart failure from high blood pressure in the lungs. The goal is to see if this approach can keep them alive and stable until they receive a transplan…

This study compares two ways to intensify treatment for people with pulmonary arterial hypertension (PAH) who are not doing well enough on standard dual therapy. One group adds a third type of medication (a prostacyclin pathway agent), while the other group increases the dose of …

This study looks at the long-term safety of an inhaled medication called seralutinib for people with pulmonary arterial hypertension (PAH), a serious condition where high blood pressure damages the arteries in the lungs. About 316 participants who finished a previous seralutinib …

This early-stage trial tests the safety of a single inhaled dose of L608 in 32 healthy volunteers. L608 is a liposomal formulation designed to treat pulmonary arterial hypertension, a condition of high blood pressure in the lungs. The study compares different doses against a plac…

This study tests an investigational drug called IMC-003 in 120 adults with pulmonary arterial hypertension (PAH), a serious lung condition that makes the heart work harder. Participants receive multiple injections of the drug or a placebo, alongside their usual treatments. The go…

This study tests an experimental drug called LTP001 for pulmonary arterial hypertension (PAH), a serious lung condition that makes it hard for the heart to pump blood. The trial has two parts: first, healthy volunteers receive single or multiple doses to check safety and how the …

This study tests whether the drug sotatercept can improve how well the lungs transfer oxygen in people with pulmonary arterial hypertension (PAH). Twenty-seven adults with PAH will receive the drug every 21 days for 29 weeks and undergo lung function tests, heart ultrasounds, and…

This study is testing the safety of an inhaled dry powder form of treprostinil (LIQ861) for people with pulmonary hypertension (high blood pressure in the lungs) due to lung disease. About 80 adults will take the drug using a special inhaler, and researchers will monitor for side…

This study offers continued access to the inhaled drug TPIP for people with pulmonary arterial hypertension (PAH) or pulmonary hypertension linked to interstitial lung disease (PH-ILD) who have already completed a related study. Participants must have successfully finished prior …

This phase 3 trial is testing whether a once-daily inhaled medication called treprostinil palmitil can help adults with pulmonary arterial hypertension (PAH) walk farther. About 344 participants will receive either the drug or a placebo for 24 weeks. The main goal is to see if th…

This pilot study tests whether a sleep health program designed for couples can improve sleep and blood pressure. Fifty couples will take part in an 8-week program that includes sleep education, coaching, and a Fitbit to track sleep. The goal is to see if working together as a tea…

This phase 1 trial tests the safety of a new drug called ZMA001 in 96 healthy adults. ZMA001 is a monoclonal antibody designed to reduce lung damage in pulmonary arterial hypertension (PAH), a serious condition. Participants receive a single dose of the drug or placebo and are mo…

This study tests whether adding Qishen Yiqi Dropping Pills, a Chinese herbal medicine, to standard therapy can improve exercise ability and quality of life in 120 adults with severe pulmonary hypertension. Participants will be randomly assigned to receive either the herbal pills …

This study is testing a new medicine called PF-07868489 for people with pulmonary arterial hypertension (PAH), a condition where high blood pressure in the lung arteries makes the heart work harder. The study is open-label, meaning everyone knows they are getting the drug, and it…

This study compares starting with two oral medications (tadalafil and ambrisentan) versus one medication alone in people newly diagnosed with pulmonary arterial hypertension (PAH) who also have at least two heart-related conditions. The goal is to see if the two-drug approach lea…

This study tests an experimental drug called IKT-001 in people with pulmonary arterial hypertension (PAH), a condition where high blood pressure in the lungs makes it hard to breathe and move. About 486 adults will receive either IKT-001 or a placebo to see if the drug improves b…

This Phase 2 trial tests an experimental drug called APL-9796 in 48 adults with pulmonary hypertension (high blood pressure in the lungs). The study aims to see if the drug is safe, tolerable, and effective. Participants receive injections under the skin, and researchers monitor …

This study is testing whether valsartan, a drug already used for high blood pressure, can help people with pulmonary arterial hypertension (PAH). Researchers will give 60 adults either valsartan or a placebo for 24 weeks to see if it improves how far they can walk in six minutes …

This early-stage study is testing whether artesunate, a drug used for malaria, is safe for people with pulmonary arterial hypertension (PAH). Fifteen adults with PAH will take increasing doses of artesunate capsules for 20 weeks. The main goal is to check for side effects, not ye…

This study tests a drug called sotatercept in 42 children aged 1 to 18 who have pulmonary arterial hypertension (PAH), a serious lung condition that makes the heart work too hard. The drug is given as a shot every 3 weeks, and the main goal is to see if it is safe and how the bod…

This study tests a device called the Alma system for women who have severe bleeding after childbirth that does not stop with standard treatments. About 50 women who experience heavy bleeding after vaginal or C-section delivery will be enrolled. If usual care fails, the Alma syste…

This early-stage study tests whether empagliflozin, a drug used for diabetes, can help people with pulmonary arterial hypertension (PAH). About 72 adults will take either the drug or a placebo daily for 12 weeks. Researchers will check if it lowers lung blood pressure and improve…

This study tests whether extra guidance from a pharmacist can help people with pulmonary arterial hypertension (PAH) use their inhaled iloprost correctly and consistently. PAH is a rare, serious lung condition that makes it hard to breathe. The trial will enroll 72 adults who alr…

This study tests a procedure called FETO for unborn babies with a severe form of congenital diaphragmatic hernia (CDH), where the diaphragm has a hole and the lungs don't grow well. Doctors place a tiny balloon in the baby's windpipe to block it, which may help the lungs expand a…

This study tests whether giving iron through a vein can help people with pulmonary hypertension (high blood pressure in the lungs) who also have low iron levels. Many patients with this condition have trouble absorbing iron from pills. The trial will compare intravenous iron to a…

This study tests whether adding the drug sotatercept to usual treatments can improve exercise ability in adults with pulmonary arterial hypertension (PAH) from unrepaired heart defects, including Eisenmenger syndrome. About 36 adults in Japan will be randomly assigned to receive …

This study tests a new device for people with pulmonary hypertension, a condition where high blood pressure strains the heart. The device is implanted to help the heart pump better. About 30 adults with severe symptoms will take part to see if the device is safe and works well.

This study tests whether the drug sotatercept can improve right heart function in people with pulmonary arterial hypertension (PAH). PAH causes high blood pressure in the lungs, straining the right side of the heart. Sotatercept targets the underlying blood vessel changes, not ju…

This phase 2 trial is testing whether two existing drugs, empagliflozin (used for diabetes) and ranolazine (used for chest pain), can improve right heart function in 30 people with pulmonary hypertension and right heart failure. Participants will receive one of the drugs plus sta…

This study tests whether a long-term rehabilitation program—combining home exercise and breathing muscle training—can improve clinical outcomes and heart-lung function in people with pulmonary arterial hypertension. About 104 adults with stable disease will be randomly assigned t…

This study tests a new radioactive tracer called 18F-FAPI-74 that may help detect scar tissue (fibrosis) in the heart and lungs earlier than current methods. Researchers will compare this new PET/CT scan to standard imaging in 210 adults with conditions like lung disease or heart…

This study explored whether a special type of MRI using inhaled xenon gas could detect changes in the small blood vessels of the lungs in people with pulmonary hypertension. The goal was to see if this imaging method could track disease progression or response to treatment. Howev…

This study tests whether a non-invasive device called electrical impedance tomography (EIT) can accurately diagnose pulmonary hypertension, a serious lung condition. Currently, diagnosis requires an invasive procedure called right heart catheterization. Researchers will compare E…

This study tests whether inhaling a special form of xenon gas during an MRI can help doctors see and measure blood vessel changes in the lungs of people with pulmonary arterial hypertension (PAH). The goal is to find a non-invasive way to diagnose different types of PAH and track…

This early-phase study tests whether a special PET scan tracer, 18F-fluoroglutamine, can detect pulmonary arterial hypertension (PAH) earlier and more accurately. PAH is a serious disease of the lung's blood vessels that often goes undiagnosed for years. The study will scan 71 ad…

This study tests whether a 12-week home-based exercise program, started soon after diagnosis, improves walking distance and quality of life in people with pulmonary hypertension. Forty participants will either exercise early or wait six months. The goal is to see if exercise plus…

This study tests whether a mobile health program can help adolescents with pulmonary arterial hypertension increase their daily step counts. About 50 teens aged 10-21 will use a Fitbit and receive coaching to boost activity over 12 weeks. The goal is to improve exercise and quali…

This early study tests whether a peptide called IRW, found in egg white hydrolysate, can help manage high blood sugar and blood pressure. About 28 participants at risk for or with type 2 diabetes will consume a smoothie with the peptide on four separate days, while a healthy cont…

This study tests whether a 12-week home exercise program can improve exercise capacity and quality of life in 20 adults with pulmonary arterial hypertension (PAH). Participants receive guidance from a physiotherapist to do endurance and strength training at home. The main goal is…

This natural history study follows 270 adults with pulmonary arterial hypertension (PAH) and healthy volunteers to track how the disease changes over time. Researchers will use blood tests, heart and lung imaging, and a six-minute walk test to find new markers of disease severity…

This study explores whether a simple, radiation-free scan of the nailbeds—called nailfold capillaroscopy—can help diagnose and monitor pulmonary hypertension (PH), a condition of high blood pressure in the lungs. Researchers will compare nailbed blood vessel measurements with inv…

This study is collecting blood and other samples from 5,000 children and young adults (under 21) who are already taking certain medications as part of their regular care. The goal is to understand how these drugs move through and affect children's bodies, so doctors can prescribe…

This study looks at why people with pulmonary arterial hypertension (PAH) lose muscle mass and how that affects their daily life and activity. Researchers will measure body composition, heart fat, diet, and physical function in 150 adults with PAH. No new treatment is being teste…

This study looks at what happens when people with pulmonary arterial hypertension (PAH) switch from one medication (ambrisentan) to another (bosentan). Researchers will track 121 adults to see if their risk level, symptoms, and side effects change after the switch. The goal is to…

This study looks at whether detailed heart scans (echocardiograms and MRIs) can improve how doctors predict short-term risks in people with a type of high blood pressure in the lungs (pulmonary arterial hypertension). Researchers will follow 50 adults for 6 months to see if addin…

This study examines why fat accumulates in the right ventricle of people with pulmonary arterial hypertension (PAH) and how it affects heart function and exercise ability. Researchers will use MRI and blood tests in 75 adults with PAH to track changes over time. The goal is to be…

This study follows 27 pregnant women living at high altitude in Bolivia and compares them to women at sea level. Researchers will use heart ultrasounds and blood tests to see how the body adapts to low oxygen levels during pregnancy. The goal is to better understand why some wome…

This study aims to find genes that make some people with congenital heart defects develop a serious lung condition called pulmonary arterial hypertension (PAH). Researchers will analyze DNA from blood samples of 21 patients with heart defects who also have PAH. The goal is to ide…

This study looks at whether giving mothers in Brazil an extra $40 per month (compared to just $2) can protect their children's brain development and mental health. About 450 children aged 7-10 from low-income families will be followed for 2 years. Researchers will measure stress,…

This study is looking at people with pulmonary arterial hypertension (PAH), those with a genetic risk but no disease, and healthy individuals. Researchers aim to find molecular and physical markers that explain why some people get PAH and others stay healthy. The goal is to impro…

This study is creating and testing a questionnaire called SAVOIR to measure how much people with pulmonary arterial hypertension (PAH) understand about their condition. Up to 215 patients and expert judges will help ensure the questions are clear, relevant, and reliable. The goal…

This study aims to develop a noninvasive way to detect blood vessel changes in the lungs of people with Group 3 pulmonary hypertension (PH) using a special MRI technique. Researchers will compare MRI results with lung tissue from 30 patients awaiting lung transplant. The goal is …

This study is testing whether a special MRI using inhaled xenon gas can track how well the drug sotatercept repairs blood vessels in the lungs of people with pulmonary arterial hypertension (PAH). Fourteen adults with PAH will have xenon MRI scans before and after starting sotate…

This study involves 100 people with suspected pulmonary hypertension who are already scheduled for a right heart catheterization. During the procedure, doctors will take two extra blood samples from a specific position in the lung artery to analyze oxygen and other gas levels. Th…

This study will follow at least 700 people with pulmonary hypertension to track side effects and deaths related to targeted medications. Participants will be checked every 6 months using a computer system. The goal is to better understand the safety of these drugs in real-world u…

This study is a national registry that collects information from 3,000 people with pulmonary hypertension (PH) treated at specialized centers across the U.S. Researchers will track how patients are diagnosed, treated, and how they do over time. The goal is to see if care follows …

This study looks at how genes may increase the risk of pulmonary hypertension (high blood pressure in the lungs). Researchers will collect health surveys and saliva samples from 10,000 adults in the US, both with and without the condition. The goal is to find genetic links that c…

This study looks at how long it takes for people in Brazil to get a correct diagnosis of pulmonary arterial hypertension (PAH), a rare and serious lung disease. Researchers will review medical records of about 139 adults diagnosed in the last five years to find out what causes de…

This study looks at how blood vessels control blood flow in healthy people and those with conditions like COPD, heart failure, and high blood pressure. Researchers will measure changes in blood flow and blood pressure after exercise and other tests. The goal is to understand why …

This study follows 150 people with Takayasu's arteritis that also affects the lung arteries. Researchers will track their health over time, including how far they can walk in six minutes and their risk of death. The goal is to better understand the disease and its long-term outlo…

This study looks at how hormones and metabolism are involved in pulmonary arterial hypertension (PAH), a serious lung condition. Researchers will measure sex hormone levels, insulin resistance, and test two potential treatments—metformin and ACE-2—in small groups. The goal is to …

This study looks at whether the way blood cells work and handle stress can help doctors detect and predict the course of pre-capillary pulmonary hypertension, a serious lung condition. Researchers will collect blood samples from 120 patients during routine visits over three years…