[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100643249":3},{"organization":4,"armGroups":7,"interventions":13,"overallOfficials":19,"centralContacts":20,"locations":26,"responsibleParty":43,"collaborators":19,"id":45,"slug":46,"hasResults":47,"nctId":48,"briefTitle":49,"officialTitle":50,"acronym":51,"eligibilityCriteria":52,"healthyVolunteers":47,"sex":53,"minAge":54,"maxAge":19,"enrollmentInfo":55,"targetDuration":19,"studyType":58,"phases":59,"briefSummary":61,"conditions":62,"keywords":19,"overallStatus":29,"whyStopped":19,"lastUpdateSubmitDate":65,"lastUpdatePostDateStruct":66,"startDateStruct":69,"completionDateStruct":71,"leadSponsor":73,"locationsCount":74},{"fullName":5,"class":6},"Clinique Saint Jean, France","OTHER",[8],{"label":9,"type":6,"description":10,"interventionNames":11},"Annular ligament biopsy in conjunction with a synovial biopsy","For all patients, systematic performance of an annular ligament biopsy in conjunction with a synovial biopsy during the surgery",[12],"Diagnostic Test: Annular ligament biopsy",[14],{"type":15,"name":16,"description":17,"armGroupLabels":18,"otherNames":19},"DIAGNOSTIC_TEST","Annular ligament biopsy","In addition to the standard synovial biopsy, a biopsy of the annular ligament of the carpus will be performed during endoscopic carpal tunnel surgery",[9],null,[21],{"name":22,"role":23,"phone":24,"phoneExt":19,"email":25},"Cecile Spirito","CONTACT","0033467413399","cecile.spirito@capsante.fr",[27],{"facility":28,"status":29,"city":30,"state":19,"zip":31,"country":32,"countryCode":33,"cosmosGeoPoint":34,"geoPoint":39,"contacts":40},"Clinique St Jean Sud de france","RECRUITING","Montpellier","34430","France","FR",{"type":35,"coordinates":36},"Point",[37,38],3.87635,43.61093,{"lat":38,"lon":37},[41],{"name":22,"role":23,"phone":42,"phoneExt":19,"email":25},"00304 67 41 34 53",{"type":44,"investigatorFullName":19,"investigatorTitle":19,"investigatorAffiliation":19,"oldNameTitle":19,"oldOrganization":19},"SPONSOR","100643249","concordance-for-transthyretin-amyloidosis-between-synovial-biopsy-and-anterior-carpal-ligament-biopsy-100643249",false,"NCT07644325","Concordance for Transthyretin Amyloidosis Between Synovial Biopsy and Anterior Carpal Ligament Biopsy","Assessment of Diagnostic Concordance for Transthyretin Amyloidosis Between Synovial Biopsy and Anterior Carpal Ligament Biopsy in Patients Who Underwent Endoscopic Carpal Tunnel Syndrome Surgery","ATTR2026","Inclusion Criteria:\n\n* Adult patient with Health Insurance\n* Clinical diagnosis + carpal tunnel EMG\n* Validated indication for carpal tunnel surgery\n* Signed informed consent\n* Patient at risk for postoperative complications (bilateral carpal tunnel syndrome, heart failure, atrial fibrillation, elderly patients)\n\nExclusion Criteria:\n\n* Need for open carpal tunnel surgery.\n* Pregnant women\n* Adults under guardianship","ALL","18 Years",{"count":56,"type":57},500,"ESTIMATED","INTERVENTIONAL",[60],"NA","Transthyretin amyloidosis (ATTR) is an underdiagnosed condition that can present early as carpal tunnel syndrome, sometimes preceding cardiac involvement by several years. The recent emergence of new treatments underscores the importance of early diagnosis. Synovial biopsy performed during open carpal tunnel surgery is considered the gold standard for local screening, but it is less accessible, more difficult, and riskier to perform via endoscopy-a minimally invasive surgical technique that is currently the standard at our center and is becoming increasingly widespread.\n\nThe anterior annular ligament of the carpus constitutes an alternative tissue to the synovium, easily accessible via endoscopy, safe, and standardizable.\n\nIn this study, the systematic performance of an annular ligament biopsy in conjunction with a synovial biopsy during endoscopic carpal tunnel surgery would allow for the evaluation of the diagnostic concordance of the ligament biopsy by comparing it to the results obtained using the gold standard method. This strategy would also provide an opportunity to analyze the feasibility of systematic screening for ATTR on the ligament during endoscopic procedures.\n\nThis approach could offer a practical and innovative method for the early identification of at-risk patients and facilitate appropriate and timely management of the condition.",[63,64],"Carpal Tunnel","Transthyretin Amyloidosis","2026-06-08",{"date":67,"type":68},"2026-06-12","ACTUAL",{"date":70,"type":68},"2026-05-27",{"date":72,"type":57},"2027-05-27",{"name":5,"class":6},1]