
"I was delighted to take part in a clinical trial as it has the potential to really help others in the future.”
This trial is looking at a programme to help people lose weight before surgery for bowel cancer.
It is for people who are carrying excess weight.
Surgery is a usual treatment for bowel (colorectal) cancer. Some people have a risk of developing complications from surgery. We know that people who have complications recover more slowly, have longer hospital stays, and need more care.
In this trial, researchers are trying to find ways to reduce these complications. Physical fitness and having well controlled blood sugar are linked with better recovery after surgery. Losing weight improves physical fitness and helps control blood sugar for people who carry excess weight. The team think that this could lower the number of complications that surgery can cause.
The main aims of the trial are to find out:
The team hope to run a larger trial with more people if this one is successful.
The following bullet points are a summary of the entry conditions for this trial. Talk to your doctor or the trial team if you are unsure about any of these. They will be able to advise you.
Who can take part
You may be able to join this trial if all of the following apply. You:
Who can’t take part
You cannot join this trial if any of these apply. You:
This trial is taking place in the UK. The team need to find 72 people to take part.
It is a randomised trial. You are put into a group by a computer. Neither you nor your doctor will be able to decide which group you are in.
There are 2 groups:
Normal care group
You carry on with your normal care as usual. You don’t follow a special diet.
Supported care group
You follow a special low diet. You start the diet as soon as you join the trial and continue up until 2 days before your surgery. This is for about 3 weeks on average.
You eat only nutritious soups and shakes. The research team chose this diet because, on average, people who follow it lose more weight than people following diets based on eating less regular food.
The soups and shakes contain:
Every day, you have 4 of the soups or shakes. You can choose from a variety of flavours. The team provide you with these products for free. They are gluten free and free of nuts, sesame, and shellfish. They are suitable for Halal, Hindu, or Kosher diets. And they are already used by the NHS in other medical conditions.
You will have a consultation once a week with a . This is a phone or video call. These consultations stop when you finish the diet.
Interviews
In the supported care group, the team call you when you are halfway through the diet period. They ask you what you thought about the diet. This call takes about 45 minutes.
Quality of life
The trial team ask you to fill out some questionnaires:
The questionnaire asks about side effects and how you’ve been feeling. This is called a quality of life questionnaire.
You see the trial team at the hospital to see if you are suitable to join the trial. At this visit:
This initial visit takes about 2 hours. The team ask to audio record this visit. You don’t have to agree to this if you don’t want to. You can still take part in the trial.
The team check your weight again when you go into hospital for surgery. You also see them at the hospital 1 month after surgery. This is to see how you are. They repeat the assessments you had done when you joined the trial.
The trial team monitor you while you are on the diet and for a short time afterwards.
Most people won’t have side effects from the low calorie diet. A few people might develop . The team give you a fibre supplement to take to help prevent this.
Other possible side effects of the low calorie diet include:
Most of these side effects are mild and don’t last long. Your dietitian contacts you regularly. They can suggest things you can do to help manage your side effects.
We have information about preparing for cancer treatment (prehabilitation).
Please note: In order to join a trial you will need to discuss it with your doctor, unless otherwise specified.
Dr Dimitrios Koutoukidis
National Institute for Health Research (NIHR)
Nuffield Department of Primary Care Health Sciences, University of Oxford
Surgical Intervention Trials Unit, University of Oxford
The trial team have made a video about the CARE trial and what it involves.
If you have questions about the trial please contact our cancer information nurses
Freephone 0808 800 4040
"I was delighted to take part in a clinical trial as it has the potential to really help others in the future.”