Not applicableStudy completedNCT01766232What this trial is testingLacrimal Drainage Resistance StudyWho this might be right forEpiphoraNasolacrimal Duct ObstructionCanalicular Stenosis+2 more The Cleveland Clinic 40
Not applicableUnknownNCT05241054What this trial is testingEffect of Local Anesthesia Versus Induced Hypotensive Anesthesia on Quality of External Dacryocystorhinostomy OperationWho this might be right forPatient With Nasolacrimal Duct ObstructionExternal Dacryocystorhinostomy Operation Mansoura University 64
Not applicableUnknownNCT03242681What this trial is testingEndoscopy Assisted Probing Versus Simple Probing in Primary Congenital Nasolacrimal Duct ObstructionWho this might be right forCongenital Nasolacrimal Duct Obstruction Tehran University of Medical Sciences 320
Not applicableStudy completedNCT04931186What this trial is testingNasolacrimal Duct ObstructionWho this might be right forEye DiseasesLacrimal Duct Obstruction Medical University of Vienna 625
Not applicableUnknownNCT01579344What this trial is testingLacrimal Drainage System Obstruction Associated to Radioactive Iodine Therapy for Thyroid CarcinomaWho this might be right forLacrimal Apparatus Disease Fabricio Lopes da Fonseca 100
Large-scale testing (Phase 3)Looking for participantsNCT05999630What this trial is testingArtificial Tears to Prevent Nasolacrimal Duct Obstruction in Patients Treated With Radioactive Iodine for Thyroid CancerWho this might be right forNasolacrimal Duct ObstructionThyroid Cancer Vanderbilt University Medical Center 100
Not applicableStudy completedNCT04837534What this trial is testingImproving the Follow up Rate for Pediatric PatientsWho this might be right forCNLDO - Congenital Nasolacrimal Duct ObstructionAmblyopiaConjunctivitis+3 more Seva Foundation 264
Not applicableTemporarily pausedNCT03705000What this trial is testingSLlt Stent II Lacrimal Stent for the Treatment of Nasolacrimal Duct ObstructionWho this might be right forEpiphoraDacryocystorhinostomy Thomas Gardner 50
Not applicableNot Yet RecruitingNCT06924723What this trial is testingEffect of Standardized Lacrimal Sac Massage Compared With Probing for Congenital Lacrimal Duct ObstructionWho this might be right forNasolacrimal Duct Obstruction Zhongshan Ophthalmic Center, Sun Yat-sen University 160
Not applicableUnknownNCT03318146What this trial is testingSafety, Tolerability and Preliminary Efficacy of Unilateral Latanoprost-loaded Punctual Plug -EXP-LPWho this might be right forGlaucomaOcular HypertensionIOP Shaare Zedek Medical Center 40
Not applicableStudy completedNCT00315289What this trial is testingStudy of Primary Surgical Treatment of Nasolacrimal Duct Obstruction in Children Less Than Four Years OldWho this might be right forNasolacrimal Duct Obstruction Jaeb Center for Health Research 973
Large-scale testing (Phase 3)UnknownNCT04148170What this trial is testingRecanalization of Congenital Nasolacrimal Duct Obstruction by Endodiathermy Probe and Intubation Versus Intubation OnlyWho this might be right forCongenital Nasolacrimal Duct Obstruction Cairo University 80
Not applicableStudy completedNCT02081781What this trial is testingThe Factors That Affected the Outcome of Treatment of Congenital Nasolacrimal Duct ObstructionWho this might be right forCongenital Nasolacrimal Duct Obstruction Cathay General Hospital 800
Post-approval studies (Phase 4)Study completedNCT00784992What this trial is testingA Comparison of Endonasal Dacryocystorhinostomy With and Without Silicone TubesWho this might be right forNasolacrimal Duct Obstruction University of British Columbia 200
Not applicableLooking for participantsNCT07154121What this trial is testingEfficacy Evaluation of 5-Fluorouracil as an Adjuvant to Endoscopic Dacryocystorhinostomy in Managing Primary Acquired Nasolacrimal Duct Obstruction With Small Lacrimal Sac: A Randomized Controlled StudyWho this might be right forPrimary Acquired Nasolacrimal Duct Obstruction Zhongshan Ophthalmic Center, Sun Yat-sen University 100
Early research (Phase 1)UnknownNCT06226181What this trial is testingAmniotic Membrane for DacryocystorhinostomyWho this might be right forNasolacrimal Duct ObstructionDacryocystorhinostomy Instituto de Oftalmología Fundación Conde de Valenciana 32
Not applicableStudy completedNCT05999058What this trial is testingClinical Study of Lacrimal Drainage Obstruction Diseases Using DacryoendoscopyWho this might be right forLacrimal Duct Obstruction Tianjin Eye Hospital 522
Not applicableStudy completedNCT05500950What this trial is testingColor Doppler Ultrasound in Lacrimal Sac Space-occupying LesionsWho this might be right forDacryocystitis; ChronicLacrimal Sac Space-occupying LesionsColor Doppler Ultrasound+1 more Wenzhou Medical University 21
Post-approval studies (Phase 4)Looking for participantsNCT05663684What this trial is testingDoes Topical Ophthalmic Proparacaine 0.5% Prior to Probing and Irrigation Decrease Pain?Who this might be right forEpiphoraDacryostenosisDacryocystitis Louisiana State University Health Sciences Center in New Orleans 145
Not applicableStudy completedNCT06810089What this trial is testingExamination of Lacrimal Sac and Nasal Mucosa Preparations Taken in Dacryocystorhinostomy Surgery of Patients With Nasolacrimal Duct Obstruction and Comparison of Clinical Groups With Each OtherWho this might be right forDacryocystitisDacryocystitis; ChronicDacryocystorhinostomy+6 more Uludag University 78