| Suspended | Cost Effectiveness of Various Implant Placement Protocols in the Esthetic Zone NCT05940662 | University of Bern | Phase 4 |
| Recruiting | Perioperative Outcomes After Neoadjuvant Therapy in Colorectal Cancer NCT07422974 | Osijek University Hospital | — |
| Recruiting | Pre-emptive Endoscopic Vacuum Therapy Reduces the Incidence of Anastomotic Leakage After Colorectal Cancer Sur NCT07208786 | Nanchong Central Hospital | N/A |
| Recruiting | Feasibility of Enhanced Recovery After Surgery Without Prophylactic Abdominal Drainage Tubes After Laparoscopi NCT07029269 | Zuoyi Jiao | Phase 3 |
| Recruiting | Urinary Infection and Colonization in Bone Procedures NCT06896643 | Tomas Bata Hospital, Czech Republic | — |
| Completed | taVNS Reduces Postoperative Pain and Complications in Patients With Gastric and Intestinal Tumors NCT06763913 | Second Affiliated Hospital, School of Medicine, Zhejiang University | N/A |
| Recruiting | Efficacy and Safety of Colorectal Anastomotic Leak Testing NCT06865638 | Nanchong Central Hospital | N/A |
| Not Yet Recruiting | The Effect of Catheter Protector on Catheter Dwell Time and Complications NCT06675786 | Karamanoğlu Mehmetbey University | N/A |
| Recruiting | Chlorhexidine Gluconate Versus Saline for Flushing the Surgical Area During Colorectal Cancer Surgery NCT06869096 | Nanchong Central Hospital | N/A |
| Enrolling By Invitation | Incidence and Risk Factors of Ocular Complications Among Patients With Homocystinuria NCT06545305 | King Fahad Armed Forces Hospital | — |
| Completed | Resistant Bacteria in Children in France NCT06036628 | Association Clinique Thérapeutique Infantile du val de Marne | — |
| Completed | The Impact of the Inflammation Index on Predicting Postoperative Complications in Ovarian Cancer NCT06798610 | Sakarya University | — |
| Unknown | China Research for Severe Spontaneous Intracerebral Hemorrhage（CRISIH） NCT05975398 | Beijing Tiantan Hospital | — |
| Completed | Prevalence of Distal Radial Artery Occlusion in Cardiovascular Catheterization Via Distal Radial Access NCT05317533 | Wujin People's Hospital | — |
| Completed | Reducing Postoperative Bleeding After Hysterectomy Via Independent Closure of Vaginal Cuff Angles NCT05174988 | Texas Tech University Health Sciences Center, El Paso | N/A |
| Completed | Evaluation of Advanced US Tools in Assessing Allograft Complications NCT04423458 | Imperial College London | — |
| Completed | Comparison of Different Approaches for Supraclavicular Block and Their Effects on Diaphragm Muscle Function NCT04756050 | Bozyaka Training and Research Hospital | Phase 4 |
| Recruiting | CARbon monoxidE intoxiCatiOn in Korea: Prospective Cohort (CARE CO Cohort) NCT04490317 | Wonju Severance Christian Hospital | — |
| Unknown | The Assessment of the Prevalence, Clinical Course and Treatment of COVID-19 Complications NCT04453748 | Silesian Centre for Heart Diseases | — |
| Completed | Routine Use of FIBERoptic Bronchoscopic Guidance in Percutaneous TRACHeostomy NCT04265625 | Instituto de Investigación Hospital Universitario La Paz | N/A |
| Completed | Effect of Intravenous Iron Supplementation in Reducing Allogenic Blood Transfusion NCT04061655 | Ain Shams University | EARLY_Phase 1 |
| Completed | Effect and Safety of Surgical Intervention for Severe Spontaneous Intracerebral Hemorrhage Patients on Long-te NCT05766865 | Beijing Tiantan Hospital | — |
| Completed | Feasibility of Extended Non-invasive Haemodynamic Monitoring in the PACU NCT04814966 | University Hospital Schleswig-Holstein | — |
| Completed | Study for the Prediction of Active Rejection in Organs Using Donor-derived Cell-free DNA Detection NCT03984747 | Natera, Inc. | — |
| Completed | PGDT in Patients Undergoing Kidney Transplant NCT05035537 | IRCCS Azienda Ospedaliero-Universitaria di Bologna | N/A |
| Completed | Defining Benchmarks in Bariatric Surgery NCT03440138 | Marco Bueter | — |
| Completed | Sleeves Versus Sleeveless Template NCT03641365 | Osstem AIC | N/A |
| Completed | Long-term Consequences of Necrotizing Enterocolitis in the Newborn Period NCT03091907 | Gorm Greisen | — |
| Completed | Impact of Previous Open Renal Surgery on Percutaneous Nephrolithotomy Complications NCT07097883 | Sohag University | — |
| Completed | A Multi-center Randomized Clinical Trial About Using LMA or ETI in Elderly Patients NCT02240901 | RenJi Hospital | N/A |
| Withdrawn | Improving Pain Relief Following Laparoscopic Ventral Hernia Repair NCT02785276 | University of Auckland, New Zealand | N/A |
| Completed | Effect of Endoscopic Papillary Balloon Dilation on ERCP Complications NCT02510495 | Hepatopancreatobiliary Surgery Institute of Gansu Province | N/A |
| Completed | Getting Long-term Management of Adult Children Cured of Childhood Cancer in Rhône-Alpes NCT02675166 | Centre Hospitalier Universitaire de Saint Etienne | — |
| Completed | Robotic Harvest of the Latissimus Dorsi (LD) Muscles NCT02274493 | M.D. Anderson Cancer Center | N/A |
| Unknown | Suprapubic Single-incision Laparoscopic Appendectomy Versus Conventional Appendectomy: a Randomized Controlled NCT02499016 | Nanfang Hospital, Southern Medical University | N/A |
| Unknown | Hyperfractionated Intensity-modulated Radiotherapy (IMRT) Versus Conventional Fraction IMRT for Patients With NCT02456506 | Sun Yat-sen University | N/A |
| Completed | Intestinal Microbial Dysbiosis in Chinese Infants With Short Bowel Syndrome With Different Complications NCT02699320 | Xinhua Hospital, Shanghai Jiao Tong University School of Medicine | — |
| Completed | Prenatal Counseling in Extreme Prematurity: Parents' View NCT02782637 | Radboud University Medical Center | — |
| Completed | Surgical Outcome and Multimodal Monitoring - SOMM NCT02293473 | University Medical Centre Ljubljana | N/A |
| Completed | Renal Parenchymal Core Needle Biopsy NCT02758535 | Modarres Hospital | N/A |
| Terminated | Double Tract Anastomosis and Gastric Tube Anastomosis to Proximal Gastrectomy NCT02288728 | Jian-Kun Hu | N/A |
| Completed | Propofol and Sevoflurane for Catheter-Related Bladder Discomfort NCT02252445 | Seoul National University Hospital | N/A |
| Completed | Preoperative Glucocorticoid Use in Major Hepatectomy NCT01997658 | University of Calgary | Phase 2 / Phase 3 |
| Unknown | Laparoscopy-assisted and Open Distal Gastrectomy for Gastric Cancer in the Elderly Patients NCT02246153 | Nanfang Hospital, Southern Medical University | Phase 3 |
| Completed | Impact of Increased Parent Presence in the Neonatal Intensive Care Unit on Parent & Infant Outcomes NCT02901665 | Ann & Robert H Lurie Children's Hospital of Chicago | N/A |
| Unknown | Effect of Glycopyrrolate and Atropine on Catheter-Related Bladder Discomfort NCT02228473 | Seoul National University Hospital | N/A |
| Completed | Characteristics and Risk Ratios of Late Intraocular Lens (IOL) Complication NCT02747667 | Medical University of Graz | — |
| Completed | Anesthesia for Ambulatory Pediatric Surgery in Sub-Saharan Africa (SSA) NCT02766257 | Centre Hospitalier Universitaire Pédiatrique Charles de Gaulle | N/A |
| Completed | Sevoflurane Versus Desflurane for Catheter-related Bladder Discomfort NCT02096224 | Seoul National University Hospital | N/A |
| Unknown | PET CT in Suspected CIED Infection, a Pilot Study - PET Guidance I NCT02196753 | National Institute of Cardiology, Warsaw, Poland | — |
| Unknown | Comparison of Three Kinds of Postoperative Analgesia After Total Knee Arthroplasty NCT02094339 | Guangzhou General Hospital of Guangzhou Military Command | Phase 4 |
| Unknown | Comparison of Two Kinds of Postoperative Analgesia After Amputation NCT02114463 | Guangzhou General Hospital of Guangzhou Military Command | Phase 4 |
| Completed | Evaluation of Satisfaction in Patients Undergoing Non Surgical Lifting by Means of Coned Wires. NCT02347826 | AQ-DE | — |
| Completed | Efficacy and Safety of a New Polypectomy Snare for Cold-polypectomy for Small Colorectal Polyps NCT02245854 | Istituto Clinico Humanitas | N/A |
| Unknown | Standard Length Catheters vs Long Catheters in Peripheral Vein Cannulation. NCT01917253 | ASL TO2 Torino | N/A |
| Completed | Culprit Lesion Only PCI Versus Multivessel PCI in Cardiogenic Shock NCT01927549 | University of Luebeck | Phase 4 |
| Completed | Evaluation of the Improvement of Autonomic Nervous System by a Physical Rehabilitation Program Adapted to Adul NCT02565771 | Centre Hospitalier Universitaire de Saint Etienne | — |
| Completed | Plasma Glucagon-like Peptide-1 Levels and In-hospital Complications in ST-segment Elevation Myocardial Infarct NCT03314844 | Chinese PLA General Hospital | — |
| Unknown | Surgery in Persons of Older Age NCT01924585 | Imperial College London | — |
| Unknown | Pelvic External Combined With 252-Cf Neutron Intracavitary Radiotherapy With or Without Platinum in Treating A NCT02835404 | Daping Hospital and the Research Institute of Surgery of the Third Military Medical University | Phase 2 |
| Completed | Assessment of Cardiac Autonomic Function in Adulthood After Chemotherapy or Radiotherapy in Childhood NCT01574196 | Centre Hospitalier Universitaire de Saint Etienne | — |
| Completed | The Impact of Metabolic Syndrome on Patients Undergoing Elective Laparotomy NCT02447523 | University of Ioannina | — |
| Completed | Impact of Expanded Peri Operative Warming NCT01649596 | Ascension Health | N/A |
| Completed | Laparoscopic Complete Mesocolic Excision on Colon Cancer NCT01628250 | Bo Feng | N/A |
| Completed | Study of Unsutured Versus Sutured Closure of Rectal Defects After Rectal Lesion Excisions Using Transanal Endo NCT01465945 | Dr. Carl J Brown | N/A |
| Unknown | A Retrospective Register Study to Map the Frequency of Short Duration Atrial Fibrillation (AF) Among All Patie NCT01502176 | Zealand University Hospital | — |
| Completed | The Impact of Early Feeding After Radical Cystectomy for Bladder Cancer NCT01489800 | Columbia University | N/A |
| Unknown | Saving Mother and Baby With Text Messaging NCT01775150 | Ottawa Hospital Research Institute | N/A |
| Unknown | Difficult Intubation With Glidescope Video Laryngoscope NCT01789034 | Fondazione I.R.C.C.S. Istituto Neurologico Carlo Besta | — |
| Completed | Long-term Follow-up of Childhood Cancer Survivors in the Rhône-Alpes and Auvergne Regions of France NCT01531478 | Centre Hospitalier Universitaire de Saint Etienne | — |
| Unknown | Thiopental Versus Propofol During Magnetic Resonance Imagining in Children: Something Old, Something New NCT01318044 | University Clinical Centre of Kosova | Phase 1 / Phase 2 |
| Completed | Capnography During Percutaneous Transhepatic Cholangiodrainage (PTCD) (HepaBreath) NCT01587157 | Technical University of Munich | Phase 3 |
| Withdrawn | Safety Improvement and Checklist Application NCT01343069 | Regional Hospital of Bolzano | N/A |
| Terminated | Femoral Micropuncture or Routine Introducer Study NCT01103141 | Cook Group Incorporated | N/A |
| Completed | Study Comparing Conventional and Fast Track Multi-Discipline Treatment Interventions for Colorectal Cancer NCT01080547 | Zhejiang University | Phase 3 |
| Unknown | Comparison of Laparoscopic Versus Open Gastrectomy for Advanced Gastric Cancer:A Prospective Randomized Trial NCT01043835 | Yan Shi | N/A |
| Completed | Capnography During ERCP NCT01072474 | Technical University of Munich | Phase 3 |
| Completed | Efficacy of Diode Laser in Peri-implantitis NCT02362854 | Istanbul University | N/A |
| Completed | Capnography During Colonoscopy NCT01072487 | Technical University of Munich | Phase 3 |
| Completed | Impact of C3F8 or SF6 Use and Length of Face-down Positioning (7 vs 14 Days Respectively) in Macular Hole Surg NCT02073266 | CHU de Quebec-Universite Laval | N/A |
| Completed | Comparing Bariatric Surgery Outcomes in Predominantly High-Risk Asian Patients to Global Benchmarks NCT06649578 | National University Hospital, Singapore | — |
| Completed | Surgical Reconstruction in Ulcerative Colitis With Primary Sclerosing Cholangitis NCT01798953 | Sahlgrenska University Hospital | — |
| Withdrawn | Comparing Different Routes and Doses of Phytonadione (Vitamin K) for Reversing Warfarin Treated Patients With NCT00905229 | HaEmek Medical Center, Israel | N/A |
| Completed | Fibrinogen and Bleeding After Cardiac Surgery NCT00968045 | Sahlgrenska University Hospital | Phase 2 |
| Completed | Long Term Vascular Changes in Type 1 Diabetes NCT00991575 | Oslo University Hospital | — |
| Completed | Morbidity in Newly Diagnosed type2 Diabetes in Adults NCT02002091 | University of Algiers | — |
| Unknown | Trial on Postoperative Outcomes According to the Number of Trocar During Laparoscopic Appendectomy NCT00816933 | The Catholic University of Korea | Phase 1 |
| Completed | Outcome of Patients After Total Knee Replacement: A Comparison of Femoral Nerve Block and Epidural Anesthesia NCT01631799 | University of Rostock | N/A |
| Completed | Effect of Timing of Umbilical Cord Clamping on Haematological and Clinical Outcomes of Infants NCT01081977 | Aga Khan University | Phase 2 |
| Unknown | The Use of Prostaglandin E1 in Head and Neck Microsurgery NCT00733434 | National Taiwan University Hospital | Phase 4 |
| Completed | Post-radiation Hypothyroidism After IMRT for Nasopharyngeal Carcinoma NCT02689609 | The University of Hong Kong | — |
| Terminated | The Use of an Acellular Dermal Matrix in a Two-Staged Breast Reconstruction NCT00616824 | Vanderbilt University Medical Center | Phase 4 |
| Unknown | The Safety of Cataract Removal by Phacoemulsification Surgery in Patients Under Anti-aggregant and Coumadin Tr NCT00564356 | Sheba Medical Center | N/A |
| Completed | A Trial of Closed Hemorrhoidectomy Under Local Perianal Block Versus Spinal Anesthesia NCT00925912 | Phramongkutklao College of Medicine and Hospital | N/A |
| Completed | Surgery and Convergence Insufficiency Intermittent Exotropia NCT01435876 | Sudhalkar Eye Hospital | N/A |
| Unknown | Right Hepatectomy in Patients Beyond 70 Years Old NCT01471262 | Centre Hospitalier Universitaire Vaudois | — |
| Completed | Laryngomalacia Exposed NCT01042223 | Boushahri Clinic Medical Center | — |
| Unknown | Korea National Diabetes Program NCT01212198 | Kyunghee University Medical Center | — |
| Completed | Prevention of Venous Thrombosis After Permanent Transvenous Leads Implantation NCT00621491 | University of Sao Paulo | N/A |
| Unknown | Impact of Total Nephrectomy on Patients With Kidney Stone NCT01235104 | University of Sao Paulo General Hospital | — |
| Completed | Study of Axillary Lymphadenectomy Without Drainage for Breast Cancer NCT01267552 | Universidade Federal de Goias | Phase 2 / Phase 3 |
| Completed | Laparoscopic Versus Open Incisional Hernia Repair NCT01420757 | Erasmus Medical Center | Phase 3 |
| Completed | First Postoperative Day Review After Uneventful Phacoemulsification NCT01247155 | Veroia General Hospital | — |