| Recruiting | Safety, Efficacy and Tolerability of Bowel Preparation and Colonoscopy in Patient With CHD, CKD and CLD NCT06874036 | Asian Institute of Gastroenterology, India | — |
| Unknown | Analyzing Clinical Trial Experiences of Colon Cancer Patients NCT05715905 | Power Life Sciences Inc. | — |
| Recruiting | Liquid Biopsy and Machine Learning for Early Colorectal Cancer, Adenomas, Lynch Cancers, and Residual Disease NCT07450612 | San Raffaele University | — |
| Recruiting | Comparison of NOM for ACLD Between Medical and Surgical Ward NCT06265649 | Ospedali Riuniti Trieste | — |
| Completed | Patient Education and Text Message Reminders in Colonoscopy NCT06073782 | Amasya University | N/A |
| Completed | Continuous Infusion of Remidazolam for Colonoscopic Polypectomy in Elderly Patients NCT05801757 | Tongji Hospital | N/A |
| Recruiting | Enteral Feeding of Fibre to Improve Microbiota NCT06288464 | Lancashire Teaching Hospitals NHS Foundation Trust | N/A |
| Not Yet Recruiting | The Evaluation of a Preanaesthesia Assessment Clinic NCT05520229 | University of Agder | — |
| Recruiting | A Trial to Compare Efficacy and Tolerability of Plenvu® and Picoprep® as Cleansing Agents Before Colonoscopy NCT05436054 | Aalborg University Hospital | Phase 4 |
| Active Not Recruiting | CRC Detection Reliable Assessment With Blood NCT05551052 | New Day Diagnostics | — |
| Completed | Fully Closed-Loop Insulin Delivery in Abdominal Surgery (CLAB) NCT05392452 | Lia Bally | N/A |
| Completed | Impact Of The Nurse Enhanced Recovery After Surgery Coordinator On The Compliance In Colorectal Surgery (nursE NCT05231473 | Hospital Universitari de Bellvitge | N/A |
| Completed | Three Distraction Methods for Pain Reduction During Colonoscopy NCT05378165 | Kastamonu University | N/A |
| Completed | Real Word Evidence With 1L Polyethylene Glycol (PEG)+ Ascorbic Acid in Iberia NCT05174845 | Norgine | — |
| Unknown | The Effect of Mobile Application-Based Bowel Preparation Training on the Patient's Education Whom Colonoscopy NCT05973266 | Kubra Sengor | N/A |
| Completed | Colonoscopy Using Motorized Spiral Enteroscope NCT04895254 | St. Antonius Hospital | — |
| Unknown | Comparison of Oral Lactulose Versus Polyethylene Glycol for Bowel Preparation NCT04794049 | First People's Hospital of Hangzhou | N/A |
| Unknown | GOODBYE HARTMANN TRIAL: 100 YEARS OF HARTMANN'S PROCEDURE NCT04829032 | Parma University Hospital | — |
| Terminated | Non-invasive Assessment of Colonic Motility NCT04624334 | Radboud University Medical Center | — |
| Unknown | Colon Cleansing Efficacy With 1L vs. 2L vs. 4L-PEG for Colonoscopy Among Inpatients NCT04708366 | University of Bologna | Phase 4 |
| Withdrawn | Single-incision Versus Conventional Laparoscopic Surgery for Colorectal Cancer NCT03633539 | Ruijin Hospital | N/A |
| Completed | Optic Nerve Sheath Diameter in Laparoscopic Surgeries During Trendelenburg Position NCT04428229 | Medipol University | — |
| Completed | Endoscopy-related Phone Consultation During the COVID-19 Outbreak NCT04344964 | Austin Health | — |
| Completed | Validation of Aer-O-Scope Colonoscope System Cecal Intubation NCT03949777 | GI View Ltd. | N/A |
| Completed | Low Residue Diet During 3 Days vs 1 Day Prior Colonoscopy NCT03763266 | Parc Taulí Hospital Universitari | N/A |
| Completed | Comparison of Procedural Sequences in Same-day Painless Bidirectional Endoscopy With Colonoscopic Water Exchan NCT03638713 | Dalin Tzu Chi General Hospital | N/A |
| Unknown | Individualized Bowel Preparation for Colonoscopy NCT03428724 | Clinical Hospital Colentina | Phase 4 |
| Completed | Pembrolizumab in Combination With Ibrutinib for Advanced, Refractory Colorectal Cancers NCT03332498 | H. Lee Moffitt Cancer Center and Research Institute | Phase 1 / Phase 2 |
| Completed | The efficacy of the Integrated Water Jet Channel Colonoscopy in Water Exchange Method NCT03279705 | Chih-wei Tseng | N/A |
| Recruiting | Computed Tomography Vs. Endoscopy Study NCT03148054 | Spital Limmattal Schlieren | — |
| Completed | 3-day vs. 1-day Low Residue Diet Influence in Colonoscopy Preparation and Patient Tolerability NCT02955901 | Portuguese Oncology Institute, Coimbra | N/A |
| Completed | Safety and Efficacy of CDFR0612 and CDFR0613 for Bowel Cleansing Before Colonoscopy NCT02304523 | CTC Bio, Inc. | Phase 3 |
| Unknown | Ultrafine Endoscope for Colonoscopy in Diagnosis of Colorectal Diseases NCT02160210 | Youlin Yang ,MD | N/A |
| Unknown | Water Injection Colonoscopy vs Air Insufflation Colonoscopy in Experienced Endoscopists NCT01797406 | First Affiliated Hospital of Harbin Medical University | N/A |
| Unknown | "Air Assisted"Water Injection Colonoscopy in Experienced Endoscopists NCT01797393 | First Affiliated Hospital of Harbin Medical University | N/A |
| Unknown | Water Injection Colonoscopy vs Air Insufflation Colonoscopy in Training the Beginners NCT01762735 | Youlin Yang ,MD | N/A |
| Completed | Feasibility Trial to Evaluate the Ability of the SuMO Tissue Access and Resection System NCT01322737 | University Hospitals Cleveland Medical Center | N/A |
| Completed | The Alberta Primary Care Endoscopy (APC-Endo) Study NCT01320826 | University of Alberta | — |