Raw JSON
{'hasResults': False, 'derivedSection': {'miscInfoModule': {'versionHolder': '2025-12-24'}, 'conditionBrowseModule': {'meshes': [{'id': 'D002781', 'term': 'Cholesteatoma'}], 'ancestors': [{'id': 'D007642', 'term': 'Keratosis'}, {'id': 'D012871', 'term': 'Skin Diseases'}, {'id': 'D017437', 'term': 'Skin and Connective Tissue Diseases'}]}}, 'protocolSection': {'designModule': {'studyType': 'OBSERVATIONAL', 'designInfo': {'timePerspective': 'PROSPECTIVE', 'observationalModel': 'OTHER'}, 'enrollmentInfo': {'type': 'ESTIMATED', 'count': 20}, 'patientRegistry': False}, 'statusModule': {'overallStatus': 'UNKNOWN', 'lastKnownStatus': 'RECRUITING', 'startDateStruct': {'date': '2015-08'}, 'expandedAccessInfo': {'hasExpandedAccess': False}, 'statusVerifiedDate': '2018-03', 'completionDateStruct': {'date': '2018-03', 'type': 'ESTIMATED'}, 'lastUpdateSubmitDate': '2018-03-12', 'studyFirstSubmitDate': '2016-09-13', 'studyFirstSubmitQcDate': '2016-09-15', 'lastUpdatePostDateStruct': {'date': '2018-03-13', 'type': 'ACTUAL'}, 'studyFirstPostDateStruct': {'date': '2016-09-16', 'type': 'ESTIMATED'}, 'primaryCompletionDateStruct': {'date': '2017-08', 'type': 'ACTUAL'}}, 'outcomesModule': {'primaryOutcomes': [{'measure': 'Determination of the lesion on the scanner with the help of MRI, but without having merged both methods', 'timeFrame': 'UP to 18 months'}, {'measure': 'Measure of the lesion volume in mm3', 'timeFrame': 'Up to 18 months'}]}, 'oversightModule': {'oversightHasDmc': False}, 'conditionsModule': {'conditions': ['Cholesteatoma']}, 'descriptionModule': {'briefSummary': 'Cholesteatoma is a destructive and expanding pathologic condition consisting of keratin pearl arising from a squamous epithelium in the middle ear and/or mastoid process. Evolution consists in a destruction of the ossicles as well as their possible spread through the base of the skull into the brain. Surgical treatment is required to prevent infectious or functional complications. A recurrence after surgery occurs in approximately 10% of patients and rarely affects initial site. Surgical treatment is the only care option for recurrent cholesteatoma. Various locations such as surgical approach cavity, mastoid, hypotympanum are seen. Temporal bone CT is performed prior to surgery for added information on bone erosions especially of ossicules, tegmen tympani, facial nerve canal of internal ear. Due high anatomical resolution and complex anatomy, temporal bone CT is usually displayed with Magnetic Resonance Imaging (MRI) in operating room to help surgical guidance .\n\nImaging especially using MRI is the cornerstone for diagnosis in asymptomatic patients. Since 2006, non echo planar imaging (EPI) Diffusion weighted imaging (DWI) Magnetic resonance imaging (MRI) (sequences has shown high accuracy to depict recurrent cholesteatoma. If EPI sequences had a high rate of diffeomorphic atefacts whereas non EPI sequences using either HAlf-Fourier acquisition Single-shot Turbo spin-Echo (HASTE) or Fast-spin-echo demonstrates less magnetic susceptibility artifacts. Multimodality fusion between NonEPI-DWI-MRI and computerized tomography (CT) is a rational promising tool to rise the performance for cholesteatomas delineation. The performances of NonEPI-DWI-MRI in assessing lesion spread and volume are still unknown and needs further investigations. The aim of the study is to assess the DWI-MRI/CT fusion feasibility, reproducibility and the accuracy prior to surgery propectively compared to surgical findings.'}, 'eligibilityModule': {'sex': 'ALL', 'stdAges': ['CHILD', 'ADULT', 'OLDER_ADULT'], 'samplingMethod': 'NON_PROBABILITY_SAMPLE', 'studyPopulation': 'Patient who had surgery and suspicion of recurrence of cholesteatoma for whom it is prescribed:\n\n* MRI with diffusion through systematic monitoring after treatment of acquired cholesteatoma of the middle ear: between 12 and 18 months and 4 years\n* If positive MRI scanner producing a rock without injection in the preoperative assessment', 'healthyVolunteers': False, 'eligibilityCriteria': 'Inclusion Criteria:\n\n\\- Adult woman or man who had surgery and suspicion of cholesteatoma recurrence\n\nExclusion Criteria:\n\n* Chronic renal failure\n* Contraindications to MRI'}, 'identificationModule': {'nctId': 'NCT02903550', 'briefTitle': 'Usefulness of Non EPI-DWI-MRI / CT 3D Static Co-registration Prior to Surgery of Cholesteatomas', 'organization': {'class': 'OTHER', 'fullName': 'Assistance Publique Hopitaux De Marseille'}, 'officialTitle': 'Usefulness of Non EPI-DWI-MRI / CT 3D Static Co-registration Prior to Surgery of Cholesteatomas', 'orgStudyIdInfo': {'id': '2015-27'}}, 'contactsLocationsModule': {'locations': [{'zip': '13385', 'city': 'Marseille', 'status': 'RECRUITING', 'country': 'France', 'contacts': [{'name': 'Arthur VAROQUAUX', 'role': 'CONTACT', 'email': 'arthur.varoquaux@ap-hm.fr'}], 'facility': 'Hôpital de La Timone - Assistance Publique Hôpitaux de Marseille', 'geoPoint': {'lat': 43.29695, 'lon': 5.38107}}], 'centralContacts': [{'name': 'Arthur VAROQUAUX', 'role': 'CONTACT', 'email': 'arthur.varoquaux@ap-hm.fr'}], 'overallOfficials': [{'name': 'Urielle DESALBRES', 'role': 'STUDY_DIRECTOR', 'affiliation': 'Assistance Publique Hôpitaux de Marseille'}]}, 'ipdSharingStatementModule': {'ipdSharing': 'UNDECIDED'}, 'sponsorCollaboratorsModule': {'leadSponsor': {'name': 'Assistance Publique Hopitaux De Marseille', 'class': 'OTHER'}, 'responsibleParty': {'type': 'SPONSOR'}}}}