| E.1 Medical condition or disease under investigation | 
| E.1.1 | Medical condition(s) being investigated |  | 
| E.1.1.1 | Medical condition in easily understood language |  | 
| E.1.1.2 | Therapeutic area | Analytical, Diagnostic and Therapeutic Techniques and Equipment [E] - Diagnosis [E01] | 
| MedDRA Classification | 
| E.1.2 Medical condition or disease under investigation | 
| 
| E.1.2 | Version | 21.0 |  
| E.1.2 | Level | PT |  
| E.1.2 | Classification code | 10010007 |  
| E.1.2 | Term | Colonoscopy |  
| E.1.2 | System Organ Class | 10022891 - Investigations |  | 
| E.1.3 | Condition being studied is a rare disease | No | 
| E.2 Objective of the trial | 
| E.2.1 | Main objective of the trial | 
| The objective of this study is to compare the safety, tolerability and efficacy of the FDA approved split-dose adult regimen of BLI800 (i.e., two 6 ounce bottles of oral solution, each bottle containing: sodium sulfate 17.5 grams, potassium sulfate 3.13 grams, magnesium sulfate 1.6 grams) to a reduced 3/4 volume of BLI800 (4.5 ounces per dose), as bowel preparations prior to colonoscopy in pediatric patients ages 12 to 17 years. |  | 
| E.2.2 | Secondary objectives of the trial |  | 
| E.2.3 | Trial contains a sub-study | No | 
| E.3 | Principal inclusion criteria | 
| - Male or female between the ages of 12 to 17 - Weight more than 40kg
 - Undergoing colonoscopy for routinely accepted indications
 - If female, and of child-bearing potential, subject must use an acceptable form of birth control or remain abstinent for the duration of the study.
 - Negative pregnancy test at screening, if applicable
 - In the Investigator's judgment, caregiver is mentally competent to provide informed consent for their child to participate in the study.
 |  | 
| E.4 | Principal exclusion criteria | 
| - Subjects with known or suspected ileus, impaction, severe ulcerative colitis, acute peritonitis, gastrointestinal obstruction, gastric retention (gastroparesis), bowel perforation, toxic colitis or megacolon. - Subjects who had previous significant gastrointestinal surgeries.
 - Subjects with increased risk of bowel perforation, including connective tissue disorders, toxic dilation of the bowel or recent bowel surgery.
 - Subjects with uncontrolled pre-existing electrolyte abnormalities, or those with clinically significant electrolyte abnormalities based on Visit 1 laboratory results
 - Subjects with bleeding disorders and/or impaired platelet function, or neutropenia.
 - Subjects with a prior history of renal, liver or cardiac insufficiency
 - Subjects required to take any other oral medication within 3 hours of dosing until completion of both doses.
 - Subjects with impaired consciousness that predisposes them to pulmonary aspiration.
 - Subjects with tendency for nausea and/or vomiting, or that have known swallowing disorders.
 - Subjects for whom intake of substances is likely to affect gastrointestinal motility or urinary flow rate.
 - Subjects undergoing colonoscopy for foreign body removal and/or decompression
 |  | 
| E.5 End points | 
| E.5.1 | Primary end point(s) | 
| Percent of subjects with treatment emergent adverse events |  | 
| E.5.1.1 | Timepoint(s) of evaluation of this end point |  | 
| E.5.2 | Secondary end point(s) | 
| 1. Percent of subjects with successful preparation rated by colonoscopist on a 4 point scale (1=poor to 4 = excellent) 2. Change in serum chemistry parameters
 |  | 
| E.5.2.1 | Timepoint(s) of evaluation of this end point | 
| For endpoint 1: 2 days For endpoint 2: 9 days
 |  | 
| E.6 and E.7 Scope of the trial | 
| E.6 | Scope of the trial | 
| E.6.1 | Diagnosis | No | 
| E.6.2 | Prophylaxis | No | 
| E.6.3 | Therapy | No | 
| E.6.4 | Safety | Yes | 
| E.6.5 | Efficacy | Yes | 
| E.6.6 | Pharmacokinetic | No | 
| E.6.7 | Pharmacodynamic | No | 
| E.6.8 | Bioequivalence | No | 
| E.6.9 | Dose response | No | 
| E.6.10 | Pharmacogenetic | No | 
| E.6.11 | Pharmacogenomic | No | 
| E.6.12 | Pharmacoeconomic | No | 
| E.6.13 | Others | Yes | 
| E.6.13.1 | Other scope of the trial description |  | 
| E.7 | Trial type and phase | 
| E.7.1 | Human pharmacology (Phase I) | No | 
| E.7.1.1 | First administration to humans | No | 
| E.7.1.2 | Bioequivalence study | No | 
| E.7.1.3 | Other | No | 
| E.7.1.3.1 | Other trial type description |  | 
| E.7.2 | Therapeutic exploratory (Phase II) | Yes | 
| E.7.3 | Therapeutic confirmatory (Phase III) | No | 
| E.7.4 | Therapeutic use (Phase IV) | No | 
| E.8 Design of the trial | 
| E.8.1 | Controlled | Yes | 
| E.8.1.1 | Randomised | Yes | 
| E.8.1.2 | Open | Yes | 
| E.8.1.3 | Single blind | No | 
| E.8.1.4 | Double blind | No | 
| E.8.1.5 | Parallel group | Yes | 
| E.8.1.6 | Cross over | No | 
| E.8.1.7 | Other | No | 
| E.8.2 | Comparator of controlled trial | 
| E.8.2.1 | Other medicinal product(s) | No | 
| E.8.2.2 | Placebo | No | 
| E.8.2.3 | Other | Yes | 
| E.8.2.3.1 | Comparator description |  | 
| E.8.2.4 | Number of treatment arms in the trial | 2 | 
| E.8.3 | Will this trial be conducted at a single site globally? | No | 
| E.8.4 | Will this trial be conducted at multiple sites globally? | Yes | 
| E.8.6 Trial involving sites outside the EEA | 
| E.8.6.2 | Trial being conducted completely outside of the EEA | Yes | 
| E.8.6.3 | Specify the countries outside of the EEA in which trial sites are planned |  | 
| E.8.7 | Trial has a data monitoring committee | No | 
| E.8.8 | Definition of the end of the trial and justification where it is not the last
                        visit of the last subject undergoing the trial |  | 
| E.8.9 Initial estimate of the duration of the trial | 
| E.8.9.2 | In all countries concerned by the trial days | 30 |