Treatment
Definity clinical trials
We’re tracking 74 recruiting studies that include Definity, each written for real people, not researchers, below.
Recruiting studies
- NCT01967511Recruiting
Study to better understand fibromuscular dysplasia
This trial studies people with fibromuscular dysplasia (FMD) and related conditions to learn what causes them and how they behave over time. You may also be able to join if you are a healthy person matched by age and gender to help compare results.
New York, New YorkAges 18 years+ - NCT07512960RecruitingPhase 3
Blood Thinner Duration After Leg Artery Treatment
This trial tests how long patients should take two blood-thinning medications (aspirin and clopidogrel) after treatment to restore blood flow to a severely damaged leg. The goal is to find the right balance between preventing clots and avoiding dangerous bleeding.
Paris, Île-de-France RegionAges 18–99 - NCT06209099Recruiting
Organ preservation first for low-risk rectal cancer
This trial tests a strategy to avoid surgery by using watchful waiting after initial treatment for early-stage rectal cancer. It may help patients keep their rectum and avoid a permanent colostomy.
Beijing, Haidian DistrictAges 18–85 - NCT06185972RecruitingPhase 2
MRI-guided ultrasound radiation for breast and chest cancer
This trial tests a new way to give radiation therapy using MRI imaging and ultrasound to make the radiation more targeted and potentially safer. If you have chest-wall or breast cancer and are already scheduled for radiation, this approach might offer a more precise treatment option.
Toronto, OntarioAges 18 years+ - NCT06113510Recruiting
Clot imaging for heart attacks with clear arteries
This study uses a special type of MRI to look for tiny blood clots in the heart arteries that may have caused a heart attack even when standard tests show no major blockages. It aims to better understand the cause of heart attacks in people with this uncommon pattern.
EdinburghAges 18 years+ - NCT05722886RecruitingPhase 2/Phase 3
Screening trial for rare cancer gene changes in existing medicines
This trial checks whether existing cancer medicines can help people whose tumors have specific “gene changes” (mutations). You may be assigned to a treatment arm that matches your tumor’s gene results after fresh biopsy and blood testing.
BelfastAges Any age - NCT06007248Recruiting
Study of inflammation-related coronary artery disease
This study compares two types of coronary artery disease: one linked to inflammation (IR-CAD) and the standard type (AS-CAD). If you have had a heart procedure and were recently hospitalized for worsening chest pain, this study may help doctors understand your condition better.
Beijing, Beijing MunicipalityAges 45–64 - NCT05996328Recruiting
Healthy meals for veterans with heart failure
This study tests whether providing healthy meals to veterans recently hospitalized for heart failure can improve their health and reduce the chance of going back to the hospital. Participants will receive meals at home for a period of time.
Birmingham, AlabamaAges 60 years+ - NCT05948904Recruiting
Cryogenic catheters tested in donated lung tissue
This study tests a technique using a special cold (cryogenic) catheter to collect samples (biopsy) and destroy abnormal lung tissue (ablation) in lungs outside the body. It’s aimed at improving how pulmonary (lung) lesions could be diagnosed and treated in the future.
Montreal, QuebecAges 18 years+ - NCT05785897Recruiting
Stent without polymer plus aspirin-like therapy for heart attack
This trial studies whether a specific stent (with no polymer coating) plus a single blood thinner plan with aspirin and another P2Y12 medicine is as safe and effective as the standard two-medicine plan after a STEMI heart attack. It may help people avoid longer exposure to stronger blood-thinning if the new approach works as well.
Geneva, Canton of GenevaAges 18 years+ - NCT05764642Enrolling by invitationPhase 2
Ultrasound imaging of kidney blood vessels in kidney disease
This Phase 2 study tests an ultrasound imaging method to look at tiny blood vessels in the kidneys. It may help doctors better understand chronic kidney disease, especially when a kidney biopsy is already planned for medical reasons.
Jacksonville, FloridaAges 18 years+ - NCT05620290RecruitingPhase 1
MR-guided ultrasound plus radiation to help skin cancer respond
This Phase 1 study tests a new way to make radiation work better using MRI-guided focused ultrasound. It focuses on improving treatment for malignant melanoma and other skin cancers, while checking safety and how patients experience treatment.
Toronto, OntarioAges 18 years+ - NCT05470205RecruitingPhase 3
Noninvasive blood-pressure measurement to estimate liver portal pressure
This Phase 3 study tests a noninvasive ultrasound-based method to estimate portal hypertension, which is high blood pressure in the liver’s blood vessels. It aims to help doctors measure how severe the liver circulation problem is without needing invasive pressure testing.
Philadelphia, PennsylvaniaAges 18 years+ - NCT05081115Recruiting
Stress echo imaging for people with heart valve or muscle issues
This trial studies a stress echocardiogram (an ultrasound of the heart during stress) to better understand and improve future heart imaging. It may help by comparing how well the test works for different heart conditions.
BeneventoAges 18–75 - NCT07714499Recruiting
Energy use in healthy people vs. those with intestinal failure
This study looks at how the body uses energy (calories) in people with intestinal failure compared to healthy controls. The results may help improve nutritional care.
LjubljanaAges 18–65 - NCT07516379Recruiting
Understanding Lung Rejection After Transplant
This study follows people with serious lung disease before and after lung transplant to understand how rejection happens and what warning signs to watch for. By studying your blood, tissue samples, and imaging, researchers hope to better predict and prevent transplant rejection.
Bethesda, MarylandAges 18–75 - NCT07610226Recruiting
Cataract Surgery Lens for Prior Myopic Eye Surgery
This study tests a special intraocular lens (an artificial lens implanted during cataract surgery) designed for patients who had prior myopic refractive surgery (LASIK or PRK to correct nearsightedness). The goal is to achieve the best possible vision correction after cataract removal.
Greensboro, North CarolinaAges 18 years+ - NCT03417856Enrolling by invitation
Study skin and blood signs in ichthyosis
This study looks at “skin and blood biomarkers,” meaning measurable signs in the body, in people with ichthyosis to better understand the condition. It may help researchers find ways to track disease activity and evaluate future treatments.
Chicago, IllinoisAges 1–60 - NCT03398304Enrolling by invitation
Exercise study to track body changes during activity
This study measures how your body responds over time while you do a controlled exercise session. It may help researchers better understand normal changes in healthy adults during different exercise levels.
Nashville, TennesseeAges 18–49 - NCT02301663Recruiting
Stress test study of heart blood-flow issues in adults
This study tests a new kind of stress test to understand how small blood-vessel heart problems relate to heart relaxation problems in people with angina (chest pain) but no blocked arteries. It may help doctors learn better ways to diagnose and guide treatment for these conditions.
Los Angeles, CaliforniaAges 18–60 - NCT01868373Enrolling by invitationPhase 1
Fecal transplant study for hard-to-treat C. difficile diarrhea
This Phase 1 study tests defined fecal microbiota (healthy gut bacteria) given to people with C. difficile diarrhea that didn’t go away or came back soon after antibiotics. It may help by restoring a healthier balance of gut bacteria so the infection can stop recurring.
Houston, TexasAges 18 years+ - NCT07770126Recruiting
Stomach bacteria study for gastric conditions and precancer
This study looks for certain stomach bacteria (other than the common H. pylori) that might be linked to stomach diseases or early signs of cancer. If you have a stomach condition, your participation could help doctors understand these bacteria better.
EdegemAges 18 years+ - NCT07572630Enrolling by invitation
How your brain processes visual information and attention
This research study examines how your brain focuses on and processes visual details. Participants will complete visual tasks while we monitor brain activity using safe imaging technology, helping us understand how attention shapes what we see.
Santa Barbara, CaliforniaAges 18–55 - NCT07517393Recruiting
Creating a Digital Lung Model Using AI and CT Scans
This study collects information from your chest CT scans and medical history to build an artificial intelligence model of how your lungs work. This 'digital twin' may help doctors better understand and predict lung health in the future.
Peschiera del Garda, VeronaAges 18 years+
Common questions
- Are there clinical trials studying Definity?
- Yes. Clin2 currently lists 74 recruiting studies that include Definity, drawn from the U.S. registry and rewritten for real people so you can see what each is testing and who it's for.
- How do I know if I qualify for a Definity trial?
- Each study lists its own eligibility criteria — rules about condition, age, and prior treatments. On every Clin2 trial page we explain these in plain language and offer a short, optional pre-screen for a fit read. The study team makes the final decision.
- Is Definity an approved treatment?
- A drug being studied in a trial may be investigational (still being tested) or already approved and being studied for a new use. Each study page explains what phase it's in. Clin2 does not provide medical advice — talk with your doctor about whether Definity or a specific trial is right for you.
Related treatments
Clin2 helps you find and understand clinical trials and does not provide medical advice. Study data comes from ClinicalTrials.gov. A drug appearing here is being studied in a trial and may be investigational. Talk with your doctor about whether a specific treatment or trial is right for you.