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WeIght Loss Maintenance in Adults (WILMA)

Have you lost weight intentionally recently?

If you have, you know how challenging keeping up the good work can be and you may be interested in taking part in a new study. WILMA stands for Weight Loss Maintenance in Adults and is a large trial run by Cardiff University looking at whether a programme targeting motivation can help you maintain your weight loss and also facilitate further weight loss if this is what you want.

If you are:

  • 18 to 70 years old
  • Have or had a BMI of 30 or over in the past 12 months
  • Have intentionally lost at least 5% of your body weight in the past 12 month and can provide evidence of this (e.g. a letter from your nurse or GP or a slimming club booklet)

If you are currently losing weight or planning to lose weight, you may also be eligible to take part, so please get in touch.

If you are unsure of your BMI or your % weight loss, please visit the Useful Links section of this website, where you will find tools for calculating these.

The study is currently running in South East Wales and the Nottingham and Derby areas.

The links on the left hand side menu will provide all the information you might want about the WILMA study, so please have a look around. To learn more about the study and how to get in touch with us, please click on these links to download the participant information sheet and the expression of interest.

If you are interested in joining the WILMA study, please print off and complete the expression of interest form, You can ask your GP, nurse, slimming consultant to fill in the back of the form or send us a copy of your weight loss evidence (e.g: Slimming booklet) to provide verification or your weight loss.

For more information on forms of accepted forms of verification, please email us at .

Once you have completed the expression of interest form, please return to us at the freepost address below, and we will get in touch with you.


South East Wales Trials Unit - WILMA

7th Floor, Neuadd Meirionnydd

Cardiff University


CF14 4YS