| E.1 Medical condition or disease under investigation | 
| E.1.1 | Medical condition(s) being investigated | 
| It is investigated whether the administration of Buscopan will improve the detection, removal and harvesting of colonic polyps during colonoscopy. |  | 
| MedDRA Classification | 
| E.1.2 Medical condition or disease under investigation | 
| 
| E.1.2 | Version | 12.1 |  
| E.1.2 | Level | LLT |  
| E.1.2 | Classification code | 10010007 |  
| E.1.2 | Term | Colonoscopy |  | 
| E.1.2 Medical condition or disease under investigation | 
| 
| E.1.2 | Version | 12.1 |  
| E.1.2 | Level | LLT |  
| E.1.2 | Classification code | 10010003 |  
| E.1.2 | Term | Colonic polyp |  | 
| E.1.2 Medical condition or disease under investigation | 
| 
| E.1.2 | Version | 12.1 |  
| E.1.2 | Level | LLT |  
| E.1.2 | Classification code | 10010036 |  
| E.1.2 | Term | Colorectal carcinoma |  | 
| 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 | 
| To investigate whether bowel relaxation, induced by administration of hyoscine N-butylbromide, improves the detection, removal and colllection of colonic polyps during colonoscopy |  | 
| E.2.2 | Secondary objectives of the trial | 
| To investigate whether the detection, removal and collection of colonic polyps is influenced by the age, sex,  the presence of colonic diverticula, the person who performs the colonoscopy, withdrawal time, and the preparation of the colon |  | 
| E.2.3 | Trial contains a sub-study | No | 
| E.3 | Principal inclusion criteria | 
| 1. Patiënt is routinely referred for colonoscopy by GP or specialist, and the correct indication as well possible contraindications for the procedure have been verified by a gastroenterologist, which is a standard procedure in the Deventer Hospital 2. Patiënt is able to understand and give informed consent
 3. The age should be above 30.
 |  | 
| E.4 | Principal exclusion criteria | 
| 1. Pregnancy 2. Myasthenia Gravis
 3. Exacerbation of inflammatory bowel disease
 4. (Suspicion of) active diverticulitis
 5. Expectation of an estimated probability of complete colonoscopy of less than 50%, e.g. by the presence of a stenosis
 |  | 
| E.5 End points | 
| E.5.1 | Primary end point(s) | 
| Poly detection ratio: the percentage of colonoscopies with at least one colonic polyp as compared to the total number of colonoscopies |  | 
| 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 | Yes | 
| E.6.4 | Safety | No | 
| 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 | No | 
| 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 | Yes | 
| E.7.1.3.1 | Other trial type description | 
| Use as an improvement method for polyp detection during colonoscopy |  | 
| E.7.2 | Therapeutic exploratory (Phase II) | No | 
| E.7.3 | Therapeutic confirmatory (Phase III) | No | 
| E.7.4 | Therapeutic use (Phase IV) | Yes | 
| E.8 Design of the trial | 
| E.8.1 | Controlled | Yes | 
| E.8.1.1 | Randomised | Yes | 
| E.8.1.2 | Open | No | 
| E.8.1.3 | Single blind | No | 
| E.8.1.4 | Double blind | Yes | 
| E.8.1.5 | Parallel group | No | 
| 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 | Yes | 
| E.8.2.3 | Other | No | 
| E.8.3 | The trial involves single site in the Member State concerned | Yes | 
| E.8.4 | The trial involves multiple sites in the Member State concerned | No | 
| E.8.5 | The trial involves multiple Member States | No | 
| E.8.6 Trial involving sites outside the EEA | 
| E.8.6.1 | Trial being conducted both within and outside the EEA | No | 
| E.8.6.2 | Trial being conducted completely outside of the EEA | Information not present in EudraCT | 
| 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 | 
| The trial ends after randomization of 672 patients. 
 |  | 
| E.8.9 Initial estimate of the duration of the trial | 
| E.8.9.1 | In the Member State concerned years | 1 | 
| E.8.9.1 | In the Member State concerned months | 0 | 
| E.8.9.1 | In the Member State concerned days | 0 | 
| E.8.9.2 | In all countries concerned by the trial years | 0 | 
| E.8.9.2 | In all countries concerned by the trial months | 0 | 
| E.8.9.2 | In all countries concerned by the trial days | 0 |