Testing heart artery function with and without nitroglycerin
Part of Heart & circulation clinical trials.
This study compares two ways of testing the small blood vessels in the heart to understand chest pain when no major blockages are found. It may help doctors learn more about why you have chest pain and how to treat it.
Summary written for real people, not researchers, by Clin2.
Who can take part
- You are 18 years old or older
- You have chest pain but no major blockages in your heart arteries
- You are able to follow the study plan and give written permission to join
Quick eligibility check
Answer a few plain-language questions, based on this study's own requirements, to get a preliminary sense of fit.
Similar studies
Other trials that look related to this one.
This study tests a non-invasive method to evaluate chest pain in people who do not have blocked coronary arteries. It may help patients understand the cause of their symptoms without needing invasive procedures.
This study helps women with chest pain or heart symptoms who have normal-looking coronary arteries (the blood vessels that feed the heart). Researchers will perform specialized heart tests to understand why you have symptoms, then tailor treatment based on your specific condition.
This study looks at people who have chest pain but don't have major blockages in their heart arteries. It aims to understand how the tiny blood vessels and artery spasms might be causing symptoms, using special heart tests.
This study tests a detailed diagnostic procedure during heart catheterization for patients who previously had stents placed and now have chest pain or signs of heart stress. The goal is to better understand blood flow in treated arteries to guide treatment decisions.
This study looks at people who are being checked for possible heart artery–related chest or similar discomfort, but without major artery blockage (non-obstructive arteries). It aims to help doctors understand what might be causing symptoms and guide safer testing.
This study looks at blood “biomarkers” and platelet function to better understand INOCA (heart-related chest pain despite no major artery blockage). You may be eligible if you have INOCA and are already taking aspirin, and if you haven’t taken certain blood-thinner or platelet-altering medicines recently.
Hear when a new ANOCA - Angina With Non-obstructive Coronary Arteries trial opens
We’ll email you when one opens — at most once a week, no account needed, unsubscribe anytime.