A Randomized, Blinded, Prospective Trial to Compare the Safety and Efficacy of Three Bowel-Cleansing Solutions for Colonoscopy (HSG-01*)

Preparatory PEG-EL1 (Klean-Prep) was significantly superior to PEG-EL2 (Endofalk) and NaP (Fleet Phospho-Soda) in achieving effective cleansing of the entire colon prior to colonoscopy. On the basis of these data, PEG-EL1 can be regarded as the "gold standard" for bowel cleansing prior to colonoscopy.