SUSTAIN: Prospective Study on DEXTENZA® Safety And Efficacy Following Concomitant MIGS and Cataract Surgery
Study Details
Study Description
Brief Summary
In this study, the investigators are comparing dexamethasone ophthalmic insert (DEXTENZA®) to the current standard of care, prednisolone acetate 1% eye drops, in a glaucoma population receiving both cataract and minimally-invasive glaucoma surgery (MIGS). DEXTENZA® and prednisolone acetate 1% drops are both steroids used to control inflammation after eye surgery. DEXTENZA®'s method of delivery differs by offering a sustained release of steroid that does not necessitate postoperative anti-inflammatory eye drops. The investigators hypothesize that DEXTENZA® will be as safe as prednisolone acetate 1% drops and as effective at controlling postoperative inflammation following concomitant cataract-MIGS in a glaucoma population. The investigators also hypothesize that DEXTENZA® will be preferred by patients over prednisolone acetate 1% drops.
| Condition or Disease | Intervention/Treatment | Phase |
|---|---|---|
|
Phase 4 |
Detailed Description
Glaucoma and cataract surgery patients face an outsize postoperative burden. In addition to taking frequent anti-inflammatory eye drops, they often continue their glaucoma medications. This can cause patient confusion and nonadherence, potentially leading to poor healing, slower recovery period, and/or cystoid macular edema. DEXTENZA®, as a sustained release anti-inflammatory insert, could help preclude adherence difficulties and increase comfort by reducing eye drop load. However, glaucoma surgeons may hesitate to adopt DEXTENZA® due to concerns regarding safety with respect to elevated intraocular pressure. This prospective study will address those concerns directly, providing timely and high-quality clinical evidence comparing DEXTENZA® to standard-of-care steroid eye drops. For physicians and patients, the results of this study will prove immediately useful for therapeutic decision-making.
Study Design
Arms and Interventions
| Arm | Intervention/Treatment |
|---|---|
| Experimental: DEXTENZA® arm This arm will receive the DEXTENZA® insert after cataract surgery and MIGS. |
Drug: Dexamethasone Ophthalmic Insert
DEXTENZA® is a 3mm long gel-like cylinder that is inserted in the punctum, a natural opening in the lower eyelid. DEXTENZA® is activated by the eye's moisture. DEXTENZA® delivers 0.4 mg dexamethasone, a liquid corticosteroid, onto the surface of the eye automatically for up to 30 days after eye surgery. Dexamethasone is used to reduce inflammation and eye pain. This arm will also receive the standard of care topical ofloxacin eye drop antibiotic regimen.
Other Names:
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| Active Comparator: Prednisolone acetate 1% arm This arm will receive the prescription for daily prednisolone acetate 1% eye drops after cataract surgery and MIGS. |
Drug: Prednisolone Acetate 1% Oph Susp
Prednisolone acetate 1% eye drops are used 2-4 times daily for 30 days as the current standard of care for treating inflammation and eye pain after cataract surgery. Prednisolone, like dexamethasone, is a steroid. This arm will also receive the standard of care topical ofloxacin eye drop antibiotic regimen.
Other Names:
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Outcome Measures
Primary Outcome Measures
- Change in intraocular pressure (IOP) at 1 and 3 months [1 month postop, 3 months postop]
Using quantitative IOP readings to compare ocular safety between arms
- Change in best-corrected visual acuity (BCVA) at 1 and 3 months [1 month postop, 3 months postop]
Using quantitative BCVA measurements, as determined by ETDRS chart at 4 meters, to compare ocular safety and effectiveness between arms
- Difference in adverse events between groups [Up to 3 months postop]
Using the average number of adverse events that occur in each arm to compare safety between arms
- Difference in number of glaucoma medications at 3 months [3 months postop]
Using the average number of glaucoma medications added or subtracted to each arm to compare safety between arms
Secondary Outcome Measures
- Percentage of patients requiring supplemental prednisolone acetate 1% eye drops [Up to 3 months postop]
Recording the percentage of those in the DEXTENZA® arm that require anti-inflammatory rescue with supplemental ocular steroid. This will provide insight into anti-inflammatory effectiveness of DEXTENZA®
- Incidence of cystoid macular edema (CME) at 3 months as seen on optical coherence tomography (OCT) [3 months postop]
Using the number of CME cases in each arm, as visualized by OCT, to compare safety and effectiveness between arms
- Difference in Ocular Comfort Index (OCI) score at 1 month [1 month postop]
Using the Ocular Comfort Index survey to compare patients' self-reported ocular comfort between arms, providing insight into drug effectiveness. The minimum score is 0 and the maximum score is 100, with 100 indicating the most ocular irritation and discomfort and 0 indicating the least ocular irritation and discomfort
- Difference in Ocular Comfort Index (OCI) score at 3 months [3 months postop]
Using the Ocular Comfort Index survey to compare patients' self-reported ocular comfort between arms, providing insight into drug effectiveness. The minimum score is 0 and the maximum score is 100, with 100 indicating the most ocular irritation and discomfort and 0 indicating the least ocular irritation and discomfort
- Difference patients with absence of anterior chamber (AC) cells at 1 month [1 month postop]
Comparing the percentages of patients with complete AC clearance of inflammatory cells, as determined by slit lamp exam, between arms to evaluate drug effectiveness
Eligibility Criteria
Criteria
Inclusion Criteria:
-
Cataract surgery candidate and glaucoma present in at least one eye.
-
Minimally-invasive glaucoma surgery candidate in that same eye. Defined by having ocular hypertension requiring a medication, OR as by having mild, moderate, or severe glaucoma that is sufficiently stable and appropriate for operation.
Exclusion Criteria:
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Maintains regular use (daily or more) of systemic or ocular steroids at time of enrollment
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Maintains regular use (daily or more) of systemic or ocular nonsteroidal anti-inflammatory drugs at time of enrollment
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Anterior chamber cells present at time of enrollment
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Recent febrile illness that precludes or delays participation for 3 months
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Pregnancy or lactation
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Known allergy to dexamethasone
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Known allergy to prednisolone
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Treatment with another investigational drug within the last 20 years
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Current recreational drug use
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Preexisting ocular pathology likely to confound the visual acuity or comfort endpoints including but not limited to: severe corneal scarring, ocular surface disease, diabetic retinopathy, or macular edema
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Corneal or retinal procedures (laser or incisional) during the study period and 6 months prior
Contacts and Locations
Locations
| Site | City | State | Country | Postal Code | |
|---|---|---|---|---|---|
| 1 | The New York Eye Surgery Center | Bronx | New York | United States | 10469 |
Sponsors and Collaborators
- The New York Eye Surgery Center
- Ocular Therapeutix, Inc.
Investigators
- Principal Investigator: Nathan M Radcliffe, MD, New York Eye Surgery Center; New York Eye and Ear Infirmary of Mount Sinai
Study Documents (Full-Text)
None provided.More Information
Publications
- Fisher BL, Potvin R. Transzonular vitreous injection vs a single drop compounded topical pharmaceutical regimen after cataract surgery. Clin Ophthalmol. 2016 Jul 18;10:1297-303. doi: 10.2147/OPTH.S112080. eCollection 2016.
- Johnson ME, Murphy PJ. Measurement of ocular surface irritation on a linear interval scale with the ocular comfort index. Invest Ophthalmol Vis Sci. 2007 Oct;48(10):4451-8.
- Juthani VV, Clearfield E, Chuck RS. Non-steroidal anti-inflammatory drugs versus corticosteroids for controlling inflammation after uncomplicated cataract surgery. Cochrane Database Syst Rev. 2017 Jul 3;7:CD010516. doi: 10.1002/14651858.CD010516.pub2. Review.
- Kindle T, Ferguson T, Ibach M, Greenwood M, Schweitzer J, Swan R, Sudhagoni RG, Berdahl JP. Safety and efficacy of intravitreal injection of steroid and antibiotics in the setting of cataract surgery and trabecular microbypass stent. J Cataract Refract Surg. 2018 Jan;44(1):56-62. doi: 10.1016/j.jcrs.2017.10.040.
- Newman-Casey PA, Robin AL, Blachley T, Farris K, Heisler M, Resnicow K, Lee PP. The Most Common Barriers to Glaucoma Medication Adherence: A Cross-Sectional Survey. Ophthalmology. 2015 Jul;122(7):1308-16. doi: 10.1016/j.ophtha.2015.03.026. Epub 2015 Apr 24.
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