Efficacy, Safety and Tolerability of Eziclen®/Izinova® Versus Klean-prep® on Bowel Cleansing in Adolescents Undergoing Colonoscopy

Inclusion Criteria: * Provision of signed informed consent form to participate in the study obtained from the adolescent's parent(s)/ legal representative and a signed assent form from the adolescent according to local law * Male or female subjects between 12 to 17 years of age (inclusive) * Body weight more than 40 kg * Female of childbearing potential must have a negative pregnancy test * If female, and of child-bearing potential, subject must use an acceptable form of birth control (hormonal birth control, intrauterine device (IUD), double-barrier method, or depot contraceptive) * Routinely accepted indication for undergoing colonoscopy, including but not limited to polyposis coli diagnosis or surveillance, gastrointestinal bleeding, unexplained diarrhoea or constipation, surveillance of inflammatory bowel disease or confirmation of mucosal healing, abdominal pain, abnormal endosonography or manometry, anaemia of unknown aetiology, cancer surveillance * In the investigator's judgment, the parent(s)/legal representative are/is mentally competent to provide informed consent for the subject to participate in the study * In the investigator's judgement, subject is able and willing to follow study procedures including drug administration and response to questionnaires Exclusion Criteria: * Subject with known or suspected ileus, gastrointestinal obstruction, gastric retention (gastroparesis), rectal impaction, toxic colitis, severe ulcerative colitis or toxic megacolon, advan…