[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100647893":3},{"organization":4,"armGroups":7,"interventions":19,"overallOfficials":18,"centralContacts":24,"locations":30,"responsibleParty":48,"collaborators":18,"id":50,"slug":51,"hasResults":52,"nctId":53,"briefTitle":54,"officialTitle":55,"acronym":18,"eligibilityCriteria":56,"healthyVolunteers":57,"sex":58,"minAge":59,"maxAge":60,"enrollmentInfo":61,"targetDuration":18,"studyType":64,"phases":65,"briefSummary":67,"conditions":68,"keywords":18,"overallStatus":70,"whyStopped":18,"lastUpdateSubmitDate":71,"lastUpdatePostDateStruct":72,"startDateStruct":75,"completionDateStruct":76,"leadSponsor":78,"locationsCount":79},{"fullName":5,"class":6},"Ningbo No. 1 Hospital","OTHER",[8,14],{"label":9,"type":10,"description":11,"interventionNames":12},"Risk Score-based Endoscopist Assignment","EXPERIMENTAL","High-risk patients (pre-procedural risk score \\>5) undergoing unsedated colonoscopy are assigned to expert endoscopists who have completed ≥5,000 colonoscopy procedures.",[13],"Other: Risk Score-Based Endoscopist Assignment",{"label":15,"type":16,"description":17,"interventionNames":18},"Routine Hospital Scheduling Assignment","NO_INTERVENTION","High-risk patients (pre-procedural risk score \\>5) undergoing unsedated colonoscopy are assigned to endoscopists according to routine hospital scheduling, which may include both expert and non-expert endoscopists.",null,[20],{"type":6,"name":21,"description":22,"armGroupLabels":23,"otherNames":18},"Risk Score-Based Endoscopist Assignment","High-risk patients (pre-procedural risk score \\>5) undergoing unsedated colonoscopy are assigned to expert endoscopists who have completed at least 5,000 colonoscopy procedures.",[9],[25],{"name":26,"role":27,"phone":28,"phoneExt":18,"email":29},"Lei Xu","CONTACT","+86 13486659126","xulei22@163.com",[31],{"facility":32,"status":18,"city":33,"state":34,"zip":35,"country":36,"countryCode":37,"cosmosGeoPoint":38,"geoPoint":43,"contacts":44},"the First Affiliated Hospital of Ningbo University","Ningbo","Zhejiang","315000","China","CN",{"type":39,"coordinates":40},"Point",[41,42],121.54945,29.87819,{"lat":42,"lon":41},[45],{"name":46,"role":27,"phone":47,"phoneExt":18,"email":29},"Lei Xu, MD","+86-13486659126",{"type":49,"investigatorFullName":18,"investigatorTitle":18,"investigatorAffiliation":18,"oldNameTitle":18,"oldOrganization":18},"SPONSOR","100647893","pre-procedural-risk-score-based-endoscopist-assignment-for-pain-reduction-in-unsedated-colonoscopy-100647893",false,"NCT07713953","Pre-procedural Risk Score-Based Endoscopist Assignment for Pain Reduction in Unsedated Colonoscopy","Effect of a Pre-procedural Risk Score-Based Endoscopist Assignment Strategy on Intraprocedural Pain in Unsedated Colonoscopy: A Multicenter Randomized Controlled Trial","Inclusion Criteria:\n\n* Age 18-75 years.\n* Outpatient or inpatient undergoing colonoscopy for medical screening, polyp surveillance, or polypectomy.\n* Pre-procedural risk score \\>5 (based on the following scoring system: BMI \\\u003C19 \\[5 points\\], female sex \\[1 point\\], history of abdominal or pelvic surgery \\[2 points\\], constipation \\[3 points\\]).\n\nExclusion Criteria:\n\n* Patients who have received sedation or analgesia prior to colonoscopy.\n* Patients unwilling to cooperate or unable to provide informed consent.\n* Incomplete intestinal obstruction.\n* Inflammatory bowel disease, multiple polyposis syndromes, or severe chronic cardiac or pulmonary disease.\n* Patients receiving anticoagulant therapy.",true,"ALL","18 Years","75 Years",{"count":62,"type":63},106,"ESTIMATED","INTERVENTIONAL",[66],"NA","This multicenter randomized controlled trial evaluates whether a pre-procedural risk score-based endoscopist assignment strategy reduces intraprocedural pain in high-risk patients undergoing unsedated colonoscopy. High-risk patients (risk score \\>5) are randomized 1:1 to either the intervention group (examination performed by expert endoscopists with ≥5,000 colonoscopy experiences) or the control group (examination performed by endoscopists assigned per routine hospital scheduling). The primary outcome is the proportion of patients reporting moderate-to-severe pain during colonoscopy, assessed by a blinded research assistant using a 4-point VRS. A total of 106 high-risk patients will be enrolled from two centers in China.",[69],"Colonoscopy Pain","NOT_YET_RECRUITING","2026-07-15",{"date":73,"type":74},"2026-07-20","ACTUAL",{"date":73,"type":63},{"date":77,"type":63},"2027-08-21",{"name":5,"class":6},1]