A randomised trial of a Chinese herbal medicine in the treatment of prediabetes

INTERVENTION: A Chinese Herbal Medicine or Placebo for 16 wks. The Chinese herbal medicine is a combination of six herbs made into tablets (11.3g of herbal extracts per dosage of 3 tablets). Participants are randomly allocated to receive either the placebo or active and are required to take 3 tablets orally 3 times daily for 16 weeks. CONDITION: Prediabetes PRIMARY OUTCOME: Blood glucose levels SECONDARY OUTCOME: Blood Pressure C‐Reactive Protein Insulin Lipids Obesity and Waist/Hip Ratio Quality of Life INCLUSION CRITERIA: • Able to provide informed consent; • Participants will have been diagnosed with impaired glucose tolerance according to World Health Organisation criteria: fasting plasma glucose (FPG) level of <7.0 AND 2 hr plasma glucose load level = 7.8 <11.1.