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Early Diabetes Intervention Trial
ISRCTN ISRCTN96631607
ClinicalTrials.gov identifier
Public title Early Diabetes Intervention Trial
Scientific title
Acronym EDIT Study
Serial number at source Study Numbers:Bay g 5421/0740 and Bay g 5421/200031
Study hypothesis The Early Diabetes Intervention Trial (EDIT) was a six-year, prospective, randomised, double-blind, placebo-controlled study in subjects thought to be at increased risk of developing diabetes, and who had two consecutive fasting plasma glucose levels in the range 5.5 to 7.7 mmol/L. The primary aim of the trial was to determine whether deterioration in glycaemic tolerance towards diabetes could be delayed or prevented using an alpha-glucosidase inhibitor (acarbose) or a biguanide (metformin). The trial results were presented at the 2003 Diabetes UK meeting.
Ethics approval Not provided at time of registration
Study design Prospective, randomised, double-blind, placebo-controlled study
Countries of recruitment United Kingdom
Disease/condition/study domain Impaired glucose tolerance
Participants - inclusion criteria Subjects aged 30 to 70 years inclusive, with fasting hyperglycaemia; defined as a fasting plasma glucose (FPG) level ≥5.5 mmol/l and <7.8 mmol/l on two occasions at least 1 week apart
Participants - exclusion criteria Not provided at time of registration
Anticipated start date 01/01/1997
Anticipated end date 31/12/2003
Status of trial Completed
Patient information material
Target number of participants 631
Interventions Subjects valid for inclusion were randomly assigned to acarbose 50 mg tds, metformin 500 mg tds, a combination of the two, or matching placebo.
Primary outcome measure(s) Not provided at time of registration
Secondary outcome measure(s) Not provided at time of registration
Sources of funding Educational grants were provided by Bayer plc and Merck-Lipha (UK)
Trial website http://www.dtu.ox.ac.uk
Publications 1. Possible prevention of type 2 diabetes with acarbose or metformin
Rury R Holman, Bernard V North, Felicity K Tunbridge Diabetes (2000); 49: Supplement (1): 450-P
2. Six-year results from the Early Diabetes Intervention Trial R. R. Holman, L. Blackwell, I. M. Stratton, S. E. Manley, L. Tucker and
V. Frighi Diabetic Medicine (2003); 20: Supplement (2): 15
Contact name Dr  Rury R  Holman
  Address Diabetes Trials Unit
OCDEM, Churchill Hospital
Old Road, Headington
  City/town Oxford
  Zip/Postcode OX3 7LJ
  Country United Kingdom
Sponsor Bayer plc and Merck-Lipha (UK)
  Address -
  City/town -
  Zip/Postcode -
  Country United Kingdom
Date applied 19/06/2002
Last edited 14/07/2008
Date ISRCTN assigned 19/06/2002
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