Viewing Study NCT01868620


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Study NCT ID: NCT01868620
Status: TERMINATED
Last Update Posted: 2019-07-16
First Post: 2013-05-29
Is NOT Gene Therapy: True
Has Adverse Events: False

Brief Title: Non-inferiority Trial of Iontophoretic Corneal Collagen Crosslinking (CXL) Compared to Standard Corneal Collagen Crosslinking in Progressive Keratoconus.
Sponsor:
Organization:

Raw JSON

{'hasResults': False, 'derivedSection': {'miscInfoModule': {'versionHolder': '2025-12-24'}}, 'protocolSection': {'designModule': {'phases': ['NA'], 'studyType': 'INTERVENTIONAL', 'designInfo': {'allocation': 'RANDOMIZED', 'maskingInfo': {'masking': 'NONE'}, 'primaryPurpose': 'TREATMENT', 'interventionModel': 'PARALLEL'}, 'enrollmentInfo': {'type': 'ACTUAL', 'count': 28}}, 'statusModule': {'whyStopped': 'The investigator decided to stop the trial due to a lack of inclusion.', 'overallStatus': 'TERMINATED', 'startDateStruct': {'date': '2013-05', 'type': 'ACTUAL'}, 'expandedAccessInfo': {'hasExpandedAccess': False}, 'statusVerifiedDate': '2019-07', 'completionDateStruct': {'date': '2017-03', 'type': 'ACTUAL'}, 'lastUpdateSubmitDate': '2019-07-12', 'studyFirstSubmitDate': '2013-05-29', 'studyFirstSubmitQcDate': '2013-05-30', 'lastUpdatePostDateStruct': {'date': '2019-07-16', 'type': 'ACTUAL'}, 'studyFirstPostDateStruct': {'date': '2013-06-04', 'type': 'ESTIMATED'}, 'primaryCompletionDateStruct': {'date': '2016-06', 'type': 'ACTUAL'}}, 'outcomesModule': {'otherOutcomes': [{'measure': 'Comparison of mean keratometry', 'timeFrame': 'At 1 year', 'description': 'Tomographic measurement.'}, {'measure': 'Comparison of postoperative pain and complications during the follow up', 'timeFrame': 'Outcome measure is assessed at 1 year and at 3 months'}, {'measure': 'Comparison of visual acuity', 'timeFrame': 'Outcome measure is assessed at 1 year and at 3 months'}, {'measure': 'Intraoperative comparison of corneal concentration of riboflavin', 'timeFrame': 'Outcome measure is assessed at 1 year and at 3 months'}, {'measure': 'Comparison of depth of treatment', 'timeFrame': 'Outcome measure is assessed at 1 year and at 3 months', 'description': 'By tomographic measurement'}, {'measure': 'Comparison of biomechanical parameters', 'timeFrame': 'Outcome measure is assessed at 1 year and at 3 months', 'description': 'By ORA (Ocular Response Analyzer)'}, {'measure': 'Comparison of corneal thickness', 'timeFrame': 'Outcome measure is assessed at 1 year and at 3 months for the tomographic measurement.'}], 'primaryOutcomes': [{'measure': 'The main outcome parameter is the non-inferiority of iontophoretic CXL compared to standard CXL in progressive keratoconus', 'timeFrame': 'Outcome measure is assessed at 1 year.', 'description': 'Measuring maximum keratometry (K-max) derived from computerized videokeratography.'}], 'secondaryOutcomes': [{'measure': 'Comparison of minimum keratometry', 'timeFrame': '3 months', 'description': 'Measure assessed by tomographic measurement.'}]}, 'oversightModule': {'oversightHasDmc': True}, 'conditionsModule': {'keywords': ['Progressive keratoconus', 'standard CXL', 'iontophoretic CXL', 'keratometry'], 'conditions': ['Progressive Keratoconus']}, 'referencesModule': {'references': [{'pmid': '6230745', 'type': 'BACKGROUND', 'citation': 'Krachmer JH, Feder RS, Belin MW. 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No abstract available.'}, {'pmid': '21199711', 'type': 'BACKGROUND', 'citation': 'Reinhart WJ, Musch DC, Jacobs DS, Lee WB, Kaufman SC, Shtein RM. Deep anterior lamellar keratoplasty as an alternative to penetrating keratoplasty a report by the american academy of ophthalmology. Ophthalmology. 2011 Jan;118(1):209-18. doi: 10.1016/j.ophtha.2010.11.002.'}, {'pmid': '20138607', 'type': 'BACKGROUND', 'citation': 'Caporossi A, Mazzotta C, Baiocchi S, Caporossi T. Long-term results of riboflavin ultraviolet a corneal collagen cross-linking for keratoconus in Italy: the Siena eye cross study. Am J Ophthalmol. 2010 Apr;149(4):585-93. doi: 10.1016/j.ajo.2009.10.021. Epub 2010 Feb 6.'}, {'pmid': '22108109', 'type': 'BACKGROUND', 'citation': 'Asri D, Touboul D, Fournie P, Malet F, Garra C, Gallois A, Malecaze F, Colin J. Corneal collagen crosslinking in progressive keratoconus: multicenter results from the French National Reference Center for Keratoconus. 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French.'}]}, 'descriptionModule': {'briefSummary': 'The primary purpose of the protocol is to compare the current standard CXL with iontophoretic CXL to provide evidence in relation to the efficacy and safety in progressive keratoconus.\n\nCorneal collagen crosslinking (CXL) is the first surgical procedure that appears to halt the progression of keratoconus. In the current standard CXL, the central corneal epithelium must be debrided to efficiently permeate the corneal stroma with riboflavin. The epithelium debridement can cause severe pain, infection and stromal haze. The study hypothesis is that iontophorese CXL is as effective as standard CXL to stabilize a progressive keratoconus.', 'detailedDescription': 'Keratoconus is a common bilateral progressive corneal ecstatic disease causing visual impairment by inducing irregular astigmatism and corneal opacities. This disorder typically begins during teenage years, progresses until the age of 30 to 40 years and, in severe forms, may need a corneal transplantation. CXL has changed the natural evolution of keratoconus. It creates links between collagen fibrils in order to rigidify the corneal stroma and slow down the progression of keratoconus. The corneal stroma is soaked with a riboflavin solution before being exposed to ultraviolet-A radiation.\n\nIn the current standard CXL, the central corneal epithelium must be debrided to allow the penetration of riboflavin into the cornea with a risk of side effects, such as pain for the first two post-operative days, temporary loss of visual acuity during the first three months, and serious complications such as infection and stromal opacity due to corneal scarring.\n\nIontophoresis is a non invasive technique in which a weak electric current is used to enhance the penetration of riboflavin into the cornea. The iontophoresis technique could allow intrastromal riboflavin diffusion, while keeping the corneal epithelium on, combining the efficiency of the standard procedure without the side effects of epithelial debridement.'}, 'eligibilityModule': {'sex': 'ALL', 'stdAges': ['ADULT', 'OLDER_ADULT'], 'minimumAge': '18 Years', 'healthyVolunteers': False, 'eligibilityCriteria': 'Inclusion Criteria:\n\n* Age ≥ 18 years old\n* Corneal thickness ≥ 400 µm\n* Progressive stage 1 to 3 keratoconus (Krumeich classification)\n\nExclusion Criteria:\n\n* Corneal thickness \\< 400µm\n* Stage 4 keratoconus (Krumeich classification)\n* Concomitant corneal disease\n* History of corneal surgery'}, 'identificationModule': {'nctId': 'NCT01868620', 'acronym': 'IONTO-CXL', 'briefTitle': 'Non-inferiority Trial of Iontophoretic Corneal Collagen Crosslinking (CXL) Compared to Standard Corneal Collagen Crosslinking in Progressive Keratoconus.', 'organization': {'class': 'OTHER', 'fullName': 'University Hospital, Toulouse'}, 'officialTitle': 'Non-inferiority Trial of Iontophoretic Corneal Collagen Crosslinking (CXL) Compared to Standard Corneal Collagen Crosslinking in Progressive Keratoconus.', 'orgStudyIdInfo': {'id': '13 030 03'}, 'secondaryIdInfos': [{'id': 'HAO', 'type': 'OTHER', 'domain': 'University Hospital of Toulouse'}]}, 'armsInterventionsModule': {'armGroups': [{'type': 'EXPERIMENTAL', 'label': 'Iontophoretic CXL', 'description': 'The iontophoretic CXL involves a constant current source and two electrodes. The main electrode is a circular cup, with a surrounding annular suction ring to affix the device on the cornea during the procedure. The electrode itself is a stainless steel grid, placed into the cup at a minimal distance from the cornea. The reservoir is filled with riboflavin solution. The generator applies a constant current of 1mA for a preset period of 5 min. After the riboflavin administration by iontophoresis, the cornea is irradiated by a UVA light for 3mW/cm2 during 30 minutes.', 'interventionNames': ['Device: Iontophoretic CXL']}, {'type': 'ACTIVE_COMPARATOR', 'label': 'Standard CXL', 'description': 'In the standard CXL, the epithelium is mechanically removed. Then, a solution of riboflavin is instilled each minute for 30 minutes. Corneas are irradiated by a UVA light for 3mW/cm2 during 30 minutes.', 'interventionNames': ['Device: Standard CXL']}], 'interventions': [{'name': 'Iontophoretic CXL', 'type': 'DEVICE', 'armGroupLabels': ['Iontophoretic CXL']}, {'name': 'Standard CXL', 'type': 'DEVICE', 'armGroupLabels': ['Standard CXL']}]}, 'contactsLocationsModule': {'locations': [{'zip': '31059', 'city': 'Toulouse', 'state': 'Midi-Pyrenees', 'country': 'France', 'facility': 'University Hospital Toulouse', 'geoPoint': {'lat': 43.60426, 'lon': 1.44367}}], 'overallOfficials': [{'name': 'François MALECAZE, MD, PhD', 'role': 'PRINCIPAL_INVESTIGATOR'}]}, 'sponsorCollaboratorsModule': {'leadSponsor': {'name': 'University Hospital, Toulouse', 'class': 'OTHER'}, 'collaborators': [{'name': 'Sooft Italia', 'class': 'INDUSTRY'}, {'name': 'Centre de Référence National du Kératocône', 'class': 'OTHER'}], 'responsibleParty': {'type': 'SPONSOR'}}}}