| Not Yet Recruiting | Enhanced Ward Rounds for Bowel Preparation Quality in Hospitalized Patients Undergoing Colonoscopy NCT07263867 | LanZhou University | N/A |
| Not Yet Recruiting | A Study to Evaluate the Safety and Effectiveness of MSP01-T for Bowel Cleansing Before a Colonoscopy NCT07181148 | Mather's Pharm. Co., Ltd. | Phase 3 |
| Not Yet Recruiting | Prucaloprida vs Bisacodyl as a Stimulant in Bowel Preparation for Video Colonoscopy in Adults NCT07127237 | Hospital de Clínicas Dr. Manuel Quintela | EARLY_Phase 1 |
| Recruiting | Comparison of Outcome of Three Days Bowel Preparation vs No Bowel Preparation in Patients of Colostomy Reversa NCT06902116 | University of Child Health Sciences and Children's Hospital, Lahore | N/A |
| Enrolling By Invitation | Clinical Study on the Application of Lactulose Combined with Linaclotide in Bowel Preparation for Colonoscopy NCT06748638 | Haifeng Lan | Phase 4 |
| Not Yet Recruiting | Comparing Sennosid A+B and Sodium Picosulfate/Magnesium Oxide/Citric Acid for Bowel Preparation NCT06580366 | Hitit University | Phase 4 |
| Completed | Effect of Gum Chewing or Walking on Bowel Prep Quality and Patient Satisfaction Before Colonoscopy NCT06192394 | Istanbul University - Cerrahpasa | N/A |
| Completed | Impact of a Colonoscopy Preparation Mobile App on Colonoscopic Cleanliness and Experience NCT06569277 | Dr Abdurrahman Yurtaslan Ankara Oncology Training and Research Hospital | N/A |
| Completed | Validation of a Prediction Model for Inadequate Bowel Preparation NCT06438237 | General Hospital of Shenyang Military Region | — |
| Completed | Comparing the Bowel Cleansing Efcacy of Picosulfate Sodium/ Citric Acid / Magnesium Oxide and Polyethylene Gly NCT06994585 | Fu Jen Catholic University Hospital | N/A |
| Unknown | Different Bowel Preparations in Magnetically Controlled Capsule Endoscopy NCT06313242 | Qilu Hospital of Shandong University | N/A |
| Completed | Clinical Study to Evaluate the Efficacy and Safety of GNS-212-E in Bowel Preparation for Colonoscopy NCT06317350 | Gunkang Pharmaceuticals, Inc | Phase 3 |
| Recruiting | Evaluation of an Oral Sodium Sulfate Solution for Patients With Prior Difficult or Incomplete Cleansing NCT06051955 | Lawrence Charles Hookey | N/A |
| Completed | The Colonoscopy Booklet:Effect of a Recipe Resource on Quality of Colonoscopy Bowel Preparation and Patient Ex NCT06141122 | Dr Abdurrahman Yurtaslan Ankara Oncology Training and Research Hospital | N/A |
| Completed | Effect of a Recipe Resource on Quality of Colonoscopy Bowel Preparation and Patient Experience NCT06687096 | Dr Abdurrahman Yurtaslan Ankara Oncology Training and Research Hospital | N/A |
| Completed | A Phase 3 Clinical Trials for Bowel Preparation for Colonoscopy NCT06287606 | Taejoon Pharmaceutical Co., Ltd. | Phase 3 |
| Completed | Clinical Study of Bowel Preparation Before Colonoscopy NCT06091735 | Jinling Hospital, China | N/A |
| Completed | EFFECTIVENESS of PRE-OPERATIVE BOWEL PREPARATION VS NO BOWEL PREPARATION on OUTCOMES of PEDIATRIC COLORECTAL S NCT06745505 | Shaheed Zulfiqar Ali Bhutto Medical University | N/A |
| Unknown | A Deep Learning-based System for the Bowel Preparation Evaluation Before Colonoscopy NCT05801250 | Shandong University | N/A |
| Active Not Recruiting | A Study to Investigate the Effect of a Meal At 6pm the Day Before the Colonoscopy on the Bowel Cleansing with NCT06651398 | Universitaire Ziekenhuizen KU Leuven | N/A |
| Completed | Lactulose vs. Polyethylene Glycol as Bowel Preparation for Colonoscopy in Adults NCT05726344 | Hospital de Clínicas Dr. Manuel Quintela | N/A |
| Completed | A Phase 3 Trial in Bowel Preparation for Colonoscopy NCT05870553 | Taejoon Pharmaceutical Co., Ltd. | Phase 3 |
| Unknown | Compare the Effectiveness of Sports Drink and Water as a Solvent in Polyethylene Glycol for Colonoscopy NCT05542810 | GanHuoye | EARLY_Phase 1 |
| Completed | Three Dietary Regimens in Pre-colonoscopic Bowel Preparation in Children NCT05609591 | Children's Hospital of Fudan University | N/A |
| Completed | A Prospective, Randomized, Investigator-blinded, Parallel, Multi-center, Phase 3 Trial NCT05670470 | Taejoon Pharmaceutical Co., Ltd. | Phase 3 |
| Completed | The Effect of Smartphone Application on the Quality of Bowel Preparation for Colonoscopy NCT06444724 | Mahidol University | Phase 4 |
| Recruiting | Study Assessing CLENPIQ as Bowel Preparation for Pediatric Colonoscopy NCT04113382 | Ferring Pharmaceuticals | Phase 1 / Phase 2 |
| Unknown | Effect and Safety of Polyethylene Glycol Combined With Linaclotide on Colon Cleansing for Patients With Chroni NCT05137145 | Second Affiliated Hospital of Xi'an Jiaotong University | N/A |
| Unknown | Evaluation of The Factors Affecting Bowel Preparation Adequacy for Colonoscopy NCT05107505 | Alexandra Hospital, Athens, Greece | — |
| Completed | Bowel Cleansing Performance of the Pure-Vu System in Patients With a History of Poor Bowel Preparation NCT04700410 | Radboud University Medical Center | N/A |
| Unknown | Impact of Artificial Intelligence-based Patient Reinforcement on Quality of Colonoscopy NCT05041283 | University of Ulm | N/A |
| Unknown | Prepackaged Nutritional Formulations Versus Restricted Diet for Bowel Preparation NCT04776733 | Ningbo No. 1 Hospital | N/A |
| Completed | Comparison of Split-dose and Single-dose Bowel Preparation Regimens Using Polyethylene Glycol Electrolyte(PEG) NCT06551883 | Tongji Hospital | N/A |
| Completed | Comparison of Same Morning vs Previous Evening Dosing Regimen for Assessment of Quality of Bowel Preparation f NCT06000241 | Peking Union Medical College Hospital | — |
| Completed | FFI and PR Could Improve Bowel Cleansing. NCT04605432 | Ningbo No. 1 Hospital | N/A |
| Completed | Comparative Study Between Colonoscopy Bowel Preparation With Clear Liquids, With and Without Two Servings of H NCT05088408 | Clínica de Gastroenterologia | N/A |
| Withdrawn | Accuracy of Trans-abdominal Ultrasound in Evaluating Bowel Preparation Adequacy Before Colonoscopy NCT04087265 | Johns Hopkins University | N/A |
| Unknown | Multi-center Validation of a Deep Learning Based Bowel Preparation Evaluation System NCT04591145 | Renmin Hospital of Wuhan University | — |
| Completed | Efficacy, Safety and Tolerability of Different Bowel Preparation Before Colonoscopy in Children Over 2 Years O NCT04525560 | Children's Hospital of Fudan University | N/A |
| Completed | The Effect of a Predictive Model of Bowel Preparation Based on Procedure-related Factors NCT04434625 | Air Force Military Medical University, China | N/A |
| Completed | External Validation of a Predictive Model for Bowel Preparation in Patients Undergoing Colonoscopy NCT04325139 | Air Force Military Medical University, China | — |
| Unknown | The Effect of Antiemetics on Bowel Preparation Before Colonoscopy NCT04583111 | RenJi Hospital | Phase 4 |
| Completed | Mizone vs Water for Bowel Preparation. NCT04247386 | Ningbo No. 1 Hospital | N/A |
| Completed | A Comparison of Bowel Preparation for Colonoscopy Between Digestive Physicians and Non-digestive Physicians NCT04738578 | Ningbo No. 1 Hospital | — |
| Completed | Training and Validation of Models of Factors to Predict Inadequate Bowel Preparation Colonoscopy NCT04101097 | Air Force Military Medical University, China | — |
| Unknown | Effectiveness of Enteral Nutrition for Dose Reduction of Low Dose PEG NCT04021979 | Ningbo No. 1 Hospital | N/A |
| Completed | Study of the Efficacy and Safety of Quiklean® and Klean-Prep With Dulcolax® for the Bowel Preparation Prior to NCT03992365 | Universal Integrated Corp. | Phase 3 |
| Unknown | Compare Polyethylene Glycol and Sodium Picosulfate Alone or Combined NCT03965182 | Dalin Tzu Chi General Hospital | N/A |
| Unknown | Pre-procedure Modle Predicts Bowel Preparation Quality Prior Colonoscopy NCT04160104 | Air Force Military Medical University, China | — |
| Completed | 1L- vs. 4L-PEG for Bowel Preparation Among Inpatients. NCT04310332 | IRCCS Azienda Ospedaliero-Universitaria di Bologna | — |
| Completed | Prophylatic Effect Preoperative Antibiotics With Mechanical Bowel Preparation in SSIs NCT03856671 | Third Affiliated Hospital, Sun Yat-Sen University | N/A |
| Completed | Different Dosing Time of Bowklean for the Bowel Preparation NCT04483037 | Changhua Christian Hospital | Phase 4 |
| Completed | 1L-PEG-Asc Solution for Bowel Preparation in an "Open Access" Colonoscopy Booking System: Evaluation of Advers NCT04970173 | Azienda USL Modena | — |
| Unknown | Efficacy of Tailored Bowel Preparation Strategy: A Randomized Controlled Study NCT03765216 | Shandong University | N/A |
| Unknown | Development and Validation of a Deep Learning Algorithm for Bowel Preparation Quality Scoring NCT03908645 | Shandong University | N/A |
| Completed | The Change of Gut Microbiota After Bowel Preparation and the Effect of Probiotics NCT03760133 | Kosin University Gospel Hospital | Phase 2 |
| Completed | A Predictive Model for Inadequate Bowel Preparation NCT03704571 | Shandong University | N/A |
| Completed | A Prospective, Randomized, Single-blinded (Evaluator), Parallel, Multi-center, Phase 3 Trial in Bowel Preparat NCT03544944 | Taejoon Pharmaceutical Co., Ltd. | Phase 3 |
| Unknown | Improving Effect of Reinforced Family Assistance on the Quality of Bowel Preparation for Colonoscopy NCT03225469 | Wuxi People's Hospital | N/A |
| Completed | Effectiveness of Bisacodyl Suppository Agent for Dose Reduction of Low Dose PEG NCT03849196 | Samsung Medical Center | N/A |
| Completed | Comparing Single-dose Low-volume PEG Plus Bisacodyl vs. Split-dose PEG for Bowel Preparation in Morning Colono NCT03248726 | Taipei Medical University WanFang Hospital | N/A |
| Completed | Simethicone and Bowel Preparation in Colonoscopy NCT03157791 | University of Manitoba | Phase 4 |
| Completed | WhatsApp Reminder on Bowel Preparation Level NCT03209739 | Chinese University of Hong Kong | N/A |
| Completed | Safety and Efficacy of Low-volume Preparation in the Elderly: Oral Sulfate Solution NCT03112967 | Kyung Hee University Hospital at Gangdong | N/A |
| Completed | A Study Comparing the Sodium Picosulfate, Magnesium Oxide and Anhydrous Citric Acid Oral Solution With PREPOPI NCT03017235 | Ferring Pharmaceuticals | Phase 3 |
| Completed | Multi-centre Failed Bowel Prep RCT NCT02976805 | London Health Sciences Centre Research Institute OR Lawson Research Institute of St. Joseph's | Phase 3 |
| Completed | Efficacy of Split-dose of Oral MMS for Bowel Preparation in Elderly Patients NCT04948567 | Air Force Military Medical University, China | N/A |
| Completed | Combination Method Using Sodium Picosulfate and Magnesium Citrate and PEG With Ascorbic Acid for Bowel Prepara NCT02979223 | National Cancer Center, Korea | Phase 2 |
| Unknown | Impact of Time Intervals of Preparation on Quality and Tolerance of the Bowel Preparation NCT02908919 | Faculty Hospital Kralovske Vinohrady | Phase 4 |
| Unknown | Optimal Bowel Preparation Regimen in Patients With Colorectal Surgery NCT02761317 | Shandong University | Phase 4 |
| Completed | Bowel Preparation by Face-to-face Re-education on the Day of Colonoscopy for Outpatient: a RCT NCT02772250 | Shandong University | Phase 4 |
| Unknown | Evaluation of the Quality of Life of Patients Requiring Intestinal Cleansing Using Oral Medications to Imaging NCT02536729 | Fundación Salutia | — |
| Completed | Safety and Tolerability Study of an Edible Colon Preparation NCT02402270 | ColonaryConcepts LLC | Phase 2 |
| Unknown | Split-dose Versus Single-dose Polyethylene Glycol Regimen for Capsule Endoscopy NCT02396017 | Centro Hospitalar Lisboa Ocidental | Phase 4 |
| Completed | A Study Comparing Picoprep With Mannitol and Bisacodyl for Colon Cleansing in Preparation for Colonoscopy NCT02386449 | Ferring Pharmaceuticals | Phase 4 |
| Completed | Bowel Preparation for Colonoscopy in the Elderly NCT02290093 | Kyunghee University Medical Center | Phase 4 |
| Completed | Instant Messaging Program (Wechat) Improve the Quality of Bowel Preparation NCT02140827 | Air Force Military Medical University, China | N/A |
| Completed | Aquanet Bowel Cleansing Device Versus Oral Sodium Picosulfate for Pre-endoscopy Bowel Preparation NCT03074448 | Kaiser Clinic and Hospital | Phase 3 |
| Completed | Improving Tolerability of Bowel Preparation Laxative for Colonoscopy NCT02062112 | Howard University | N/A |
| Terminated | Patient Tolerability and Efficacy of Bowel Preparation With Split Dose Picosalax vs. Split Dose PEG NCT02070341 | Queen's University | Phase 4 |
| Completed | A Predictive Score Identifies Patients With Inadequate Bowel Preparation for Colonoscopy NCT02093156 | Air Force Military Medical University, China | — |
| Completed | The Impact of Telephone and Short Message System Based Education on Bowel Preparation for Colonoscopy NCT01911052 | Keimyung University Dongsan Medical Center | Phase 3 |
| Completed | BLI800-480: A Safety and Efficacy Evaluation of 2 Different Bowel Cleansing Preparations in Adult Subjects NCT01786629 | Braintree Laboratories | Phase 4 |
| Completed | Low Volume PEG With Low Residue Test Meals Versus High Volume Split-dose PEG Bowel Preparation NCT01568814 | Inje University | Phase 3 |
| Completed | A Safety Study of 3 Different Bowel Cleansing Preparations NCT01501513 | Braintree Laboratories | Phase 3 |
| Completed | Efficacy of Prokinetics With Split Dose of PEG in Morning Colonoscopic Bowel Preparation NCT01513096 | Inje University | Phase 3 |
| Unknown | Acid-base Balance in Patients Undergoing Colonoscopy NCT01250886 | Mahidol University | Phase 1 |
| Completed | Investigation of PicoPrep Versus HalfLytely for Bowel Preparation for Colonoscopy - Split Dose PicoPrep NCT01073930 | Ferring Pharmaceuticals | Phase 3 |
| Completed | Investigation of PicoPrep Versus HalfLytely for Bowel Preparation for Colonoscopy - Day Before PicoPrep NCT01073943 | Ferring Pharmaceuticals | Phase 3 |
| Completed | Improving Bowel Preparation With an Educational Video NCT01099553 | Boston Medical Center | Phase 3 |
| Completed | Effect of Inadequate Bowel Preparation on Urgent Colonoscopy in Patients With PPB. NCT04468737 | Ningbo No. 1 Hospital | — |
| Withdrawn | Same-day, Reduced Volume Bowel Preparation NCT01044394 | Boston Medical Center | Phase 2 |
| Completed | The Effect of Bowel Preparation Status on the Polyp Missing Rate NCT00988676 | Konkuk University Hospital | — |
| Terminated | Bowel Preparation Before Colonoscopy NCT00675324 | Karolinska Institutet | N/A |
| Completed | One-Day Versus Three-Day Bowel Preparation for Colonoscopy in Children NCT02174497 | St. John Health System, Michigan | — |
| Completed | A Trial of Four Different Bowel Cleansing Regimens Prior to Colonoscopy NCT00831064 | University of Alberta | N/A |
| Completed | An Open Label Study to Assess the Effect of BLI800 on Safety and Clinical Chemistry Parameters NCT00583713 | Braintree Laboratories | Phase 1 / Phase 2 |
| Unknown | Efficacy and Safety of Polyethylene Glycol Compared With Sodium Picosulphate for Bowel Preparation Before Colo NCT01093274 | Rabin Medical Center | N/A |