Dacryocystorhinostomy clinical trials

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.

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NCT ID: NCT03705000 Suspended - Epiphora Clinical Trials

SLlt Stent II Lacrimal Stent for the Treatment of Nasolacrimal Duct Obstruction

SLINDO

Start date: October 1, 2020
Phase: N/A
Study type: Interventional

This project aims to test whether a newly designed lacrimal stent - the SlitStent - when placed into the lacrimal system in the standard fashion following a DCR surgery, will provide good symptomatic relief for epiphora and be well tolerated. Epiphora, or severe tearing, is both a very common debilitating symptom and a potential cause of dangerous infections (i.e. dacryocystitis and orbital cellulitis). DCR+lacrimal stenting surgery is 80-95% successful at improving epiphora, and the longer the stent remains in place, the better the long-term outcome. However, lacrimal stents that provide adequate circumferential force to facilitate post-DCR healing also occupy space and prevent good tear drainage until removed. Yet patients want complete symptomatic improvement as soon as possible, even if it compromises long-term results. This study aims to test a newly designed lacrimal stent that allows tears to drain through the lumen of the stent. The new stent is constructed by modifying a commercially available stent by placing openings along the side of the stent using a process developed by a University of Michigan engineer/collaborator. Following slit placement, the stent will be gas-sterilized for surgery. Patient who are scheduled for DCR+stenting surgery who provide informed consent will be randomized 2:1 to receive the investigational SlitStent or the standard commercially available stent. Following surgery, patients will be assessed both clinically, which is standard of care, and via a patient questionnaire.