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The Dahlia Study

This is a study to trial a dahlia extract in men and women with pre-diabetes and diabetes (taking metformin only) to see if it lowers blood glucose levels. It requires 3 visits to Wellington Regional Hospital for 1 hour each time. You may be eligible if you are:

  • Are diet controlled or take metformin only for diabetes
  • Aged between 18 and 80
  • Have an HbA1c between 45 and 60


This is a study for men and women with type 2 diabetes who are also overweight. 

You may be eligible to participate in this study if:

 You are aged 18-65 years

  • Able to participate in a study for up to 17 weeks
  • Treated with  Metformin only for your diabetes
  • Overweight: BMI > 30 kg/m2

 The study will compare the active study drug to placebo (a ‘dummy’ medication) One person in four will receive the placebo and three people in four will receive active study drug. This will be decided randomly and participants will not know which of these they receive during the study.  

 For more information contact Emily on phone: 806 2372 or email:

Mosaic Study

The purpose of this study is to trial a medicine that protects the kidneys in people with type 2 diabetes. This study is expected to run for more than 3 years. You may be eligible if you have type 2 diabetes and kidney impairment. 

Last updated 11 February 2020.