[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-studies-list:{\"conditionNormalized\":\"without-hearing-disorders\",\"overallStatus\":[\"RECRUITING\",\"AVAILABLE\",\"NOT_YET_RECRUITING\"],\"orderBy\":\"LastUpdateSubmitDate:desc\",\"size\":25,\"offset\":0}":3,"health-study-condition:without-hearing-disorders":46},{"pageToken":4,"total":5,"offset":6,"count":5,"results":7},null,1,0,[8],{"id":9,"slug":4,"hasResults":10,"nctId":11,"briefTitle":12,"officialTitle":12,"acronym":13,"eligibilityCriteria":14,"healthyVolunteers":15,"sex":16,"minAge":17,"maxAge":18,"enrollmentInfo":19,"targetDuration":4,"studyType":22,"phases":23,"briefSummary":25,"conditions":26,"keywords":29,"overallStatus":34,"whyStopped":4,"lastUpdateSubmitDate":35,"lastUpdatePostDateStruct":36,"startDateStruct":39,"completionDateStruct":41,"leadSponsor":43,"locationsCount":5},"100377774",false,"NCT04198909","Optimization of a Non-invasive Electrophysiological Method for Studying the Functionality of Auditory Nerve Fibers","ECOG","Inclusion Criteria:\n\n* Between 18 and 55 years old\n* be affiliated to a social security system\n* understand (oral and written) of the French language\n* be a qualified hearing with normal tympanogram and audiogram\n\nExclusion Criteria:\n\n* have a complaint of hearing\n* have a exposure to noise (professional and\u002For activities)\n* refusal to participate in the study\n* have ear infections and\u002For ENT medical history\n* have cardiovascular, metabolic, neurological and psychiatric desease\n* being a protected person\n* healthy volunteer who has received compensation equal to or greader than 4500€ in clinical study",true,"ALL","18 Years","55 Years",{"count":20,"type":21},220,"ESTIMATED","INTERVENTIONAL",[24],"NA","Acoustic overexposure can induced temporary or hearing loss. Usually hearing loss is associated with cochlear cell damages. Recently, a new pathological entity was described and called \"hidden hearing loss\". In animal model, the histopathology revealed a selective reduction in the number of auditory fibers, resulting in a decrease in the amplitude of wave I of the auditory brainstem response. Electrocochleography (Ecog) is a method for recording the electrical potentials of the cochlea (e.g. wave I). In clinical routine, Ecog is performed invasively with sedation or local anesthesia. Actually, a non invasive approach could be perform but it seems necessary to optimize this method and to define reference values in healthy volunteers.",[27,28],"Healthy Volunteer","Without Hearing Disorders",[30,31,32,33],"hidden hearing loss","questionnaire","hearing screening","electrocochleography","RECRUITING","2026-06-16",{"date":37,"type":38},"2026-06-17","ACTUAL",{"date":40,"type":38},"2019-04-29",{"date":42,"type":21},"2028-04",{"name":44,"class":45},"University Hospital, Clermont-Ferrand","OTHER",""]