A Study to Investigate Bowel Cleansing With PLENVU® Compared to Sodium Picosulfate in Participants Aged 1 to < 18 Years of Age in Preparation for Colonoscopy

Inclusion Criteria: * Participants who require a colonoscopy. * Must weigh a minimum of 10 kg, and participants aged 1 to \< 4 years of age must be above the 10th percentile of weight for age. * Must have a negative urine pregnancy test (or serum if a urine pregnancy test cannot be confirmed as negative \[e.g. three ambiguous results\]) within 24 hours before the first dose of study intervention. * Must use a highly effective method of contraception (failure rate \< 1% per year) from Day 1 and throughout the Safety Follow-up Period. * Must not be breastfeeding. * Participant is able to receive regular external feeding without breastfeeding. Exclusion Criteria: * Has a past history within last 12 months or current episode of severe constipation (requiring repeated use of laxatives/enema or physical intervention before resolution). * Has known or suspected ileus, GI obstruction, gastric retention, bowel perforation, toxic colitis, ischaemic colitis, or megacolon. * Has ongoing severe acute inflammatory bowel disease that contraindicates colonoscopy. * Participant has history of significant GI surgeries. * Has known glucose-6-phosphate dehydrogenase (G6PD) deficiency or phenylketonuria. * Participant has a past history within the last 12 months or evidence of any ongoing clinically relevant electrocardiogram (ECG) abnormalities (e.g. arrhythmias). * Has a history of uncontrolled hypertension. * Participant has regularly used laxatives or colon motility altering drugs in the l…