[{"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":29},{"pageToken":4,"total":5,"offset":6,"count":5,"results":7},null,1,0,[8],{"id":9,"slug":10,"hasResults":11,"nctId":12,"briefTitle":13,"officialTitle":13,"acronym":14,"eligibilityCriteria":15,"healthyVolunteers":16,"sex":17,"minAge":18,"maxAge":19,"enrollmentInfo":20,"targetDuration":4,"studyType":23,"phases":24,"briefSummary":26,"conditions":27,"keywords":30,"overallStatus":35,"whyStopped":4,"lastUpdateSubmitDate":36,"lastUpdatePostDateStruct":37,"startDateStruct":40,"completionDateStruct":42,"leadSponsor":44,"locationsCount":5},"100377774","optimization-of-a-non-invasive-electrophysiological-method-for-studying-the-functionality-of-auditory-nerve-fibers-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":21,"type":22},220,"ESTIMATED","INTERVENTIONAL",[25],"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.",[28,29],"Healthy Volunteer","Without Hearing Disorders",[31,32,33,34],"hidden hearing loss","questionnaire","hearing screening","electrocochleography","RECRUITING","2026-06-16",{"date":38,"type":39},"2026-06-17","ACTUAL",{"date":41,"type":39},"2019-04-29",{"date":43,"type":22},"2028-04",{"name":45,"class":46},"University Hospital, Clermont-Ferrand","OTHER"]