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23 May 2012 
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Determination of safety of patients drinking before gastroscopy
ISRCTN ISRCTN98555764
ClinicalTrials.gov identifier
Public title Determination of safety of patients drinking before gastroscopy
Scientific title
Acronym GaFFA
Serial number at source N0500103996 and N0300106567
Study hypothesis To determine the clinical equivalence of a shortened and conventional fluid fasting time in endoscopy patients in levels of gastric volume and pH.
Lay summary
Ethics approval Approved by the Blackburn Hyndburn and Ribble Valley National Health Service Trust Local Research Ethics Committee, November 2001 (reference number: NJ/AK/LRECBHRV061).
Study design Double-blind randomised controlled clinical equivalence trial
Countries of recruitment United Kingdom
Disease/condition/study domain Digestive system disease requiring diagnostic endoscopy
Participants - inclusion criteria 1. Aged 18 to 80 years
2. Undergoing routine diagnostic out-patient endoscopy
3. American Society of Anesthesiologists (ASA) grade one to two
Participants - exclusion criteria 1. ASA grade three or greater
2. Previous gastric or duodenal surgery
3. Dysphagia
4. Patients taking acid suppressing medications
5. Diabetes
Anticipated start date 18/06/2002
Anticipated end date 31/03/2006
Status of trial Completed
Patient information material
Target number of participants 508
Interventions 1. Study group: six-hour food fast, two-hour water fast
2. Control group: standard six-hour food and fluid fast
Primary outcome measure(s) 1. Gastric volume
2. pH
Secondary outcome measure(s) 1. Thirst
2. Anxiety
Sources of funding National Health Service Executive (UK) (ref: RDO/28/3/21)
Trial website
Publications
Contact name Ms  Lesley  Miller
  Address Department of Gastroenterology
Blackburn Royal Infirmary
Bolton Road
Blackburn
  City/town Lancashire
  Zip/Postcode BB2 3LR
  Country United Kingdom
  Tel +44 (0)1254 294222
  Email
Sponsor National Health Service Executive (UK)
  Address Institute for Public Health Research and Policy
University of Salford
4th Floor
Humphrey Booth House
Hulme Place
The Crescent
  City/town Salford
  Zip/Postcode M5 4QA
  Country United Kingdom
Date applied 11/12/2005
Last edited 25/01/2010
Date ISRCTN assigned 29/03/2006
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