Efficacy and safety of PICOPREP tailored dosing compared with PICOPREP day-before dosing for colon cleansing: a multi-centric randomised study

Background and study aims  The success of any colonoscopy procedure depends upon the quality of bowel preparation. We evaluated the efficacy and safety of a new tailored dosing (TD) regimen compared with the approved PICOPREP day-before dosing regimen (DBD) in the European Union. Patient and methods  Patients (≥ 18 years) undergoing colonoscopy were randomised (2:1) to TD (Dose 1, 10 – 18 hours; Dose 2, 4 – 6 hours before colonoscopy) or DBD (Dose 1 before 8:00AM on the day before colonoscopy; Dose 2, 6 – 8 hours after Dose 1). The primary endpoint of overall colon cleansing efficacy was based on total Ottawa Scale (OS) scores (0 – 14, excellent-worst). The key secondary endpoint was a binary endpoint based on the ascending colon OS (success 0 or 1, failure [≥ 2]). Convenience and satisfaction were evaluated similar to the primary and key secondary endpoints. Safety and tolerability were also evaluated. Results  Use of the PICOPREP TD regimen resulted in a statistically significant reduction in the mean total Ottawa Scale score compared to the PICOPREP DBD regimen (–3.93, 95 % confidence intervals [CI]: – 4.99, – 2.97; P P P  = 0.2988). The convenience and satisfaction were comparable in the two groups. Conclusion  The TD regimen was superior to the DBD regimen for overall and ascending colon cleansing efficacy. ClinicalTrials.gov Identifier: NCT02239692