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Contact the study team using the details below to take part. If there are no contact details below please ask your doctor in the first instance.

Contact Information:

William Alazawi, MA(Cantab), MB, PhD +44 20 7882 7225
w.alazawi@qmul.ac.uk


Olivia Bolton, Masters +44 20 788 23916
o.bolton@qmul.ac.uk


Study Location:

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Be Part of Research - Trial Details - Fructose is a Metabolic and Inflammatory Pathogenic Factor in Metabolic Dysfunction-associated Steatohepatitis (MASH)

Fructose is a Metabolic and Inflammatory Pathogenic Factor in Metabolic Dysfunction-associated Steatohepatitis (MASH)

Recruiting

Open to: ALL

Age: 45.0 - 65.0

Medical Conditions

MASH - Metabolic Dysfunction-Associated Steatohepatitis
MASH With Fibrosis
Steatosis of Liver


This information is provided directly by researchers, and we recognise that it isn't always easy to understand. We are working with researchers to improve the accessibility of this information. In some summaries, you may come across links to external websites. These websites will have more information to help you better understand the study.


MASLD (Metabolic dysfunction-associated steatotic liver disease) is a condition where fat builds up in the liver. It is the most common cause of liver disease worldwide. In some people, the fat can irritate the liver (inflammation) and cause damage. This is a more serious condition called MASH (Metabolic dysfunction-associated steatohepatitis). People with MASH more at risk of liver cirrhosis (advanced scarring in the liver) and liver cancer.

It is not fully understood why MASLD becomes MASH, or why this happens in some people but not in others. However, it is known that our diet plays a role. Research shows a diet high in a type of sugar called fructose might make MASLD worse. Fructose is found in fruit, honey and table sugar, and lots of processed food and drinks. The body deals with fructose differently to other sugars, which is why fructose may be a problem. Although scientists have studied the effects of fructose in healthy people, no studies so far have included people with MASH, so it is not known if fructose might make the condition worse.

To answer this question, the researchers will conduct a four-week randomised, double-blind study to compare the effects of fructose with another sugar called glucose in 36 people with MASH, 18 people with 'simple' MASLD, and 18 controls without liver disease. Participants will follow a low-sugar diet and, after 14 days on this diet, they will add either a glucose or fructose supplement for another 14 days. Participants will attend 3 study visits, where blood, urine, stool, and saliva samples will be taken. The main question is whether fructose causes more inflammation in people with MASH compared to those with MASLD, or people without liver disease. The researchers will also investigate how fructose affects liver fat content, the gut microbiota, and other processes relevant to MASLD/MASH.

Start dates may differ between countries and research sites. The research team are responsible for keeping the information up-to-date.  

The recruitment start and end dates are as follows:

Jun 2025 Apr 2026

INTERVENTIONAL

Intervention Type : DIETARY_SUPPLEMENT
Intervention Description : Fructose powder

Intervention Arm Group : Fructose supplementation;

Intervention Type : DIETARY_SUPPLEMENT
Intervention Description : Glucose powder

Intervention Arm Group : Glucose supplementation;



You can take part if:



You may not be able to take part if:


This is in the inclusion criteria above


Below are the locations for where you can take part in the trial. Please note that not all sites may be open.

  • Royal London Hospital
    London
    E1 1FR
  • Blizard Institute, Faculty of Medicine and Dentistry, Queen Mary University of London
    London
    E1 2AT

Olivia Bolton, Masters +44 20 788 23916
o.bolton@qmul.ac.uk


William Alazawi, MA(Cantab), MB, PhD +44 20 7882 7225
w.alazawi@qmul.ac.uk



The study is sponsored by Queen Mary University of London and is in collaboration with King's College London; University of Surrey.




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Read full details for Trial ID: NCT07013916
Last updated 18 July 2025

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