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Updated: Jan 21, 2026

E-Patient Counseling Trial E-PACO: Computer Based Education versus Nurse Counseling for Patients to Prepare for Colonoscopy
Published on: August 1, 2019
Comparison of efficacy of low-volume bowel cleansers prior to colonoscopy: a randomised, prospective, open-label
Introduction:
The aim of the study was to compare the efficacy and tolerability of polyethylene glycol/ascorbic acid (PEGA), sodium picosulfate/magnesium citrate (SPMC) and the oral sulfate formula (SIR) in a single- or split-dose regimen for bowel preparation prior to colonoscopy.
Methods:
Randomised, multicentre, open-label study. The subjects received either PEGA, SPMC or SIR in the single- or split-dose regimen before the colonoscopy. Quality and tolerability of the preparation and complaints during preparation were recorded using a 5 point scale.
Results:
558 subject were analysed. Preparation quality was comparable in the single-dose regimen. The rate of satisfactory bowel cleansing (Aronchick score 1+2) was higher for split-dose SIR and PEGA compared to SPMC (95.6%, 86.2% vs. 72.5%, p.
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