Does Colchicine Reduce Progression of Aortic Valve Stenosis? Colchicine and Inflammation in Aortic Stenosis (CHIANTI): A placebo-controlled, double-blind, multicenter randomized trial.
This study, called CHIANTI, is investigating if colchicine, a common anti-inflammatory medicine, can help prevent the worsening of a condition called aortic valve stenosis. This is where one of the heart's main valves (the aortic valve) becomes stiff and narrow due to calcium build-up, making it harder for blood to flow. Currently, there aren't many treatments to slow this process down, other than surgery. Researchers will give some people colchicine and others a 'dummy' pill (placebo) for 24 months. They will use special scans and tests to see if colchicine can reduce the calcium build-up in the valve, potentially keeping it healthier for longer. This is a large-scale study (Phase III) to confirm if this treatment could benefit patients.
At a glance
What is this study about?
You might have heard about a condition where one of your heart's important valves, the aortic valve, becomes stiff. This often happens because of calcium building up on the valve, which can make it harder for your heart to pump blood around your body. This condition is called aortic valve stenosis.
Currently, there isn't a widely available medicine that can stop this calcium build-up from getting worse. Doctors often have to wait until the condition is severe enough to recommend surgery. This study is looking at a medicine called colchicine, which is already used for other conditions, to see if it can help. Colchicine works by reducing inflammation, which some scientists think plays a part in the calcium build-up on the heart valve.
The main aim of this study is to see if colchicine can slow down how quickly calcium builds up on the aortic valve over two years. Researchers will use special scans to measure the amount of calcium at the beginning and then again after 24 months. They'll also look at other things, like how well blood flows through the valve, to get a full picture of whether colchicine makes a difference. This is a 'Phase III' study, which means it's a large, important step to see if this treatment might one day be available to more people.
Key takeaways
- The study explores if colchicine can slow the hardening of the aortic valve.
- It compares colchicine to a dummy pill (placebo) over two years.
- Special scans will measure calcium build-up on the valve.
- The goal is to find a non-surgical way to treat aortic valve issues.
- It's a large-scale study (Phase III) to confirm potential benefits.
- Participation involves regular hospital visits and heart tests.
Who may be eligible?
This study is looking for adults who are at least 18 years old and have a problem with their aortic valve starting to show calcium build-up. Both men and women can take part.
To be eligible, you would need to have been diagnosed with aortic valve calcification or early aortic valve stenosis. This means your doctor might have told you that your aortic valve is showing signs of hardening or narrowing due to calcium. The study aims to look at how the condition progresses, so it's focused on people who have these early signs.
There might be specific medical criteria in your health history that would also be checked, such as other heart conditions or medicines you are currently taking. If you're interested, your doctor can help determine if it's the right study for you based on your full medical information.
- Are you 18 years old or older?
- Have you been told you have calcium building up on your aortic heart valve?
- Are you able to attend regular hospital appointments for check-ups and scans for about two years?
- Are you willing to take study medication (which might be colchicine or a dummy pill) daily?
- Do you feel comfortable with having various heart scans, including CT scans and echocardiograms?
This is a guide only — the research team will confirm whether you can take part.
What does participation involve?
If you decide to take part in this study, you would be involved for about two years. You would receive either the study medicine, colchicine, or a dummy pill (placebo) to take regularly. Neither you nor your study doctor would know which one you are taking – this is to make sure the results are fair.
Throughout the two years, you would have regular visits to the hospital or clinic. These appointments would involve check-ups, having blood tests, and performing special heart scans, such as a type of CT scan to measure calcium in your valve, and possibly another type of scan called a PET scan. You would also have echocardiograms, which are ultrasound scans of your heart, to see how blood is flowing through your valve. These tests help the researchers understand if the treatment is working. At each visit, you would also be asked about your general health and any new symptoms.
Potential risks and benefits
Locations (1)
- —Netherlands
Common questions
What is aortic valve stenosis?
It's when one of your heart's main valves, the aortic valve, gets stiff and narrow because of calcium build-up, making it harder for blood to flow out of your heart.
What is colchicine?
Colchicine is an existing medicine that's been used for many years to reduce inflammation in the body for other conditions like gout. This study is testing if it can help with heart valves too.
What is a 'dummy pill' (placebo)?
A dummy pill looks exactly like the study medicine but doesn't contain any active drug. It helps researchers fairly compare the effects of the actual medicine.
How long does the study last?
If you join the study, you would be involved for about two years, with regular check-ups and tests during that time.
Will I know if I'm getting the real medicine or the dummy pill?
No, neither you nor your study doctor will know. This is called 'double-blind' and ensures the results are as unbiased as possible.
How to find out more
Always speak to your GP or specialist before deciding to take part in a study.
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