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Enrolling by invitationOBSERVATIONAL

PDE3B in Metabolic Regulation

This study, called "PDE3B in Metabolic Regulation," is exploring how a protein named PDE3B influences how our bodies manage sugar and fat. Early human studies have suggested that certain changes in the PDE3B gene might protect people from serious health problems like type 2 diabetes and heart disease, while animal studies showed different results. Researchers want to understand exactly how PDE3B affects fat tissue and how the body processes sugar and fats. They will compare people with a specific genetic change in PDE3B to those without it, hoping to uncover new ways to prevent or treat cardiometabolic diseases, which are conditions affecting the heart and how the body handles energy.

At a glance

Status
Enrolling by invitation
Sponsor
Cambridge University Hospitals NHS Foundation Trust
Enrolment target
40
Start
01 Sep 2025
Estimated completion
01 Sep 2029

What is this study about?

This research study, titled "PDE3B in Metabolic Regulation," is designed to help us understand more about how our bodies process sugar and fat. It focuses on a specific protein called PDE3B, which plays an important role in how cells handle nutrients. Scientists have observed that in animals, changes to PDE3B might lead to unhealthy sugar and fat levels. However, in early studies with people, it looked like having a specific genetic change that lowers the activity of PDE3B might actually protect them from conditions like type 2 diabetes and heart disease.

The main goal of this study is to get a clearer picture of how PDE3B works in humans. Researchers want to find out how this protein affects the body's fat tissues and how it influences the way we handle blood sugar and fats. By understanding this better, they hope to figure out if controlling PDE3B could be a new way to prevent or treat common health problems such as type 2 diabetes, heart disease, and cardiometabolic syndrome – a group of conditions that increase your risk of heart disease, stroke, and diabetes.

To do this, the study will involve comparing a group of people who have the specific genetic change in their PDE3B protein with another group who have the more common, typical version. They will examine differences in how their bodies handle sugar and fats, especially focusing on how fat tissue works. This vital information could open doors to developing new and effective treatments in the future.

Key takeaways

  • This study investigates how PDE3B protein affects how our bodies handle sugar and fat.
  • It aims to understand if a genetic change in PDE3B could protect against diabetes and heart disease.
  • Participation involves a screening visit and a 24-hour metabolic testing visit.
  • The 24-hour visit includes insulin infusion, blood tests, and a small fat tissue sample.
  • Findings could lead to new ways to prevent or treat cardiometabolic diseases.

Who may be eligible?

To join this study, you need to be in good general health and be between 21 and 75 years old. The researchers are looking for both men and women who are willing and able to understand and agree to take part.

However, there are certain reasons why you might not be able to join. For example, if your weight has changed a lot recently, or if you have type 2 diabetes or other serious health problems. You also can't participate if you've had cancer in the last five years, or certain types of stomach surgery.

Other reasons for not being able to join include taking medications that could interfere with the study, smoking, using illegal drugs, or if you are pregnant or breastfeeding. The study also cannot include anyone with allergies to medicines used in the study or those who find it difficult to complete all the study's activities.

Quick self-check
  • Are you between 21 and 75 years old?
  • Do you generally feel healthy, without major health conditions?
  • Has your weight been stable in the last two months (no more than 5% change)?
  • Are you able to attend study visits and follow instructions?
  • Are you not pregnant or breastfeeding?
  • Do you not smoke or use illegal drugs?

This is a guide only — the research team will confirm whether you can take part.

What does participation involve?

If you are eligible and decide to take part, your journey will involve two main visits. The first is a screening visit, which will take about 4 hours. During this visit, you'll have a general health check-up, give some blood samples before and after drinking a sugary drink, and answer questions about your lifestyle, like your diet, sleep, and how much exercise you do. You might also be asked to wear a smartwatch to help with this.

If you meet all the criteria after the screening, you'll be invited for a second, more detailed visit. This visit will last for 24 hours. During this time, you'll receive a slow drip (infusion) of insulin, and researchers will collect more blood samples. You will also have a small amount of fat tissue taken from your lower tummy. This procedure is called a biopsy. The team will explain everything to you in detail and make sure you are as comfortable as possible throughout the process.

Potential risks and benefits

Taking part in this study may not directly benefit your health, but the information gained is very important for medical science. Researchers hope to learn more about preventing and treating conditions like type 2 diabetes and heart disease. While the procedures are generally safe, there are some potential risks, such as discomfort from blood tests and the fat tissue biopsy, or minor bruising. You can choose to leave the study at any time, for any reason, without it affecting your medical care.

Locations (1)

  • Cambridge University Hospital
    Cambridge, United Kingdom

Common questions

What is PDE3B?

PDE3B is a protein in your body that helps control how your cells handle sugar and fats. It's like a tiny manager for energy processing in your cells.

What are 'cardiometabolic diseases'?

These are a group of conditions that include type 2 diabetes, heart disease, and strokes. They all relate to how your body processes energy and affect your heart and blood vessels.

Will I get free treatment for diabetes or heart disease?

This study is for research purposes only and will not provide direct treatment for diabetes or heart disease. However, the findings could help develop future treatments.

What is a 'genetic variant'?

A genetic variant is a small difference or change in your DNA, which is the instruction manual for your body. Sometimes these changes can affect how proteins like PDE3B work.

Do I need to change my diet for this study?

The study will ask about your usual diet and lifestyle, but you will not typically be asked to make specific changes to your diet, unless instructed by the study team.

How to find out more

Always speak to your GP or specialist before deciding to take part in a study.

Interested in taking part?

Register your interest

Share your details and the research team for "PDE3B in Metabolic Regulation…" will contact you if you may be eligible. Always speak to your GP before agreeing to take part.

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