Randomized, Prospective, Vehicle-Controlled, Phase I/II Clinical Trial to Evaluate the Safety and Feasibility of a Therapeutic Contact Lens Drug Delivery System (TCL-DDS) in Patients With Recurrent Cystoid Macular Edema
Massachusetts Eye and Ear Infirmary
Summary
The main aim of the pilot study is to determine preliminary estimates of the safety, tolerability, and comfort of a dexamethasone-eluting therapeutic contact lens drug delivery system (TCL-DDS) for the treatment of recurrent cystoid macular edema. Secondarily, feasibility of the TCL-DDS system will be investigated. 1. Safety: To establish that a topical dexamethasone delivery system has an acceptable safety profile by determining the incidence and severity of ocular adverse events, as identified by eye examination through day 28 following treatment initiation. 2. Comfort and tolerability: to establish the subject tolerability and comfort of the TCL-DDS. 3. Feasibility: To establish- that a topical dexamethasone delivery system is a feasible treatment for recurrent cystoid macular edema.
Description
This is a single center study to assess safety and feasibility of delivering dexamethasone through the TCL-DDS delivery system as a treatment for recurrent cystoid macular edema. The study has two phases. The study begins with phase A, which is an open label study in that will enroll up to 6 subject. The goal of this phase is to have 3 subjects complete the study. The enrollment number is 6 in order to accommodate for withdraws and/or terminations (for reasons other than adverse event to the study intervention and include loss of the lens before 7 days). Subjects will wear the TCL-DDS in one e…
Eligibility
- Age range
- 18–85 years
- Sex
- All
- Healthy volunteers
- No
Inclusion Criteria Adults between the ages of 18 and 85 Willingness to participate in the study and provide informed consent For Phase A, patients who only respond to anti-inflammatory drops (not at the intravitreal steroid injection phase of care yet). For Phase B, patients who only respond to steroid intravitreal injections (anti-inflammatory drops are no longer therapeutically working for these patients). Corneal thickness between 480 and 620 µm in the study eye by anterior segment OCT. Diagnosis of cystoid macular edema in the study eye defined as macular edema involving the center of…
Interventions
- DrugDexamethasone
The investigators have developed a topically-applied corticosteroid-delivery system that has the potential to treat recurrent cystoid macular edema with fewer risks to patient, and more dose control. The system is comprised of a drug-polymer film that is completely encapsulated within the periphery of a hydrogel that is commonly used to make contact lenses.
Location
- MEEIBoston, Massachusetts