A blinded, randomized comparison of a novel, low-dose, triple regimen with fleet phospho-soda: a study of colon cleanliness, speed and success of colonoscopy

Abstract

Background and study aims: A clean colon is essential for an efficient examination. The aim of this study was to compare a novel low-dose, low volume triple regimen with Fleet Phospho-soda.

Methods: A blinded, experienced colonoscopist examined 132 consecutive patients randomly allocated to receive either a triple regimen consisting of senna syrup (sennoside B), Picolax (sodium picosulphate), and Klean Prep (polyethylene glycol 3350), or Fleet Phospho-soda (sodium dihydrogen phosphate and disodium phosphate dodecahydrate). The colonoscopist recorded cleanliness according to a scoring system (1-very clean to 4-solid stools), and time taken to reach the caecum.

Results: In the triple regimen group (n = 81), 73% scored 1 or 2 compared with 57% in the Fleet Phospho-soda group (n = 51, p = 0.037 Mann-Whitney U-test). Examination to caecum was achieved in 95% of the triple regimen group and 89% of the Fleet Phospho-soda group. Among those examined as far as the caecum, the time to reach the caecum was 11 minutes (range 5-50) in the triple regimen group compared with 16 minutes (range 5-65) in the Fleet Phospho-soda group (p = 0.08, Mann-Whitney U-test). Patient tolerability was not assessed in this study.

Conclusions: This novel triple regimen produces a cleaner colon than Fleet Phospho-soda, is associated with a trend towards a quicker and more efficient colonic examination, and is also 30% cheaper per patient.