- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT04530864
Pre-Surgical Ocular Surface Treatment With Intracanalicular Dexamethasone Insert And Effect On Intraocular Lens Measurement Accuracy
Pre-surgical Ocular Surface Treatment With Intracanalicular Dexamethasone Insert and Effect on Intraocular Lens Measurement Accuracy - The PRECISION Study
Study Overview
Status
Intervention / Treatment
Detailed Description
Ocular surface optimization is a pre-operative necessity. In cataract surgery patients, an unstable tear film reduces the quality of corneal reflections and therefore can compromise K readings, which in turn can affect the accuracy of IOL calculations and result in suboptimum refractive results. To obtain accurate measurements, patients are routinely pre-treated with a variety of medications and therapies. However, these therapies can take time, which may lead to surgical delays.
Steroids can positively impact the stability of the tear film by inhibiting and preventing ocular surface inflammation. Punctal plugs are also widely used for the treatment of dry eye manifestations, by blocking the tear drainage, increasing tear film and eye moisture. Dextenza is a sustained-release dexamethasone intracanalicular insert recently approved by the FDA for pain and inflammation post ophthalmic surgery. It is placed into the canaliculus via the lower punctum and is designed to release steroid medication for 30 days.
Previous studies have demonstrated that ocular surface disease affects the reliability of IOL calculations, potentially affecting outcomes. The insert of a punctal plug that can deliver a sustained release of dexamethasone to the eye 2 weeks (+/- 2 days) prior to final preoperative measurements may provide adequate therapy, improving the ocular surface status and, therefore, improve the reliability of IOL selection in patients undergoing cataract surgery, in a comparatively short amount of time, without introducing patient compliance barriers.
Pre-surgical measurements, IOL calculations, and surgical plans prior to the insertion of the insert will be compared to measurements, IOL calculations, and surgical plans at 2 weeks following intracanalicular dexamethasone insertion. Surgery will proceed with data from the post-insert measurements. Final refractive outcomes at one month from the second eye surgery will be compared to pre-insert data to determine refractive accuracy.
Study Type
Enrollment (Anticipated)
Phase
- Phase 4
Contacts and Locations
Study Contact
- Name: Stanley Oliveira, BSN
- Phone Number: (800) 708-8800
- Email: soliveira@prismvisiongroup.com
Study Contact Backup
- Name: Veronique Ruppe, PHD
- Email: VRuppe@prismvisiongroup.com
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- 18 years or older
- Visually significant cataract
- Dry eye disease
- BCVA potential of 20/40 or better
Exclusion Criteria:
- Pregnancy
- Concurrent use of topical glaucoma medications
- Corneal scarring
- History of LASIK or PRK
- History of rigid gas permeable (RGP) lens wear
- Macular or retinal pathology requiring intervention
- Cataract surgery complications
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: N/A
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: DEXTENZA Insert
This prospective study will use a self controlled design for 35 eyes.
Patients scheduled to undergo routine cataract surgery in at least one of their eyes will have their pre-surgical measurements performed, IOL calculated and surgery planned.
Then they will receive insertion of an intracanalicular dexamethasone insert into the inferior punctum.
At 2 weeks (+/- 2 days) post-insertion, patients will return for an identical set of measurements.
The IOL will be calculated and the surgery planned based on post-insert data.
The insert will be removed if present (manually or via saline irrigation).
This self controlled design allows for greater control of potential confounders tied to participants' systemic and ocular health.
|
All patients will receive pre-surgical ocular surface treatment with intracanalicular sustained release dexamethasone, 0.4 mg
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
The change in baseline data (power calculation and astigmatism management) measured by IOL Master 700 and post insert of Dextenza data (power calculation and astigmatism management) measured by IOL Master 700.
Time Frame: at 8 weeks (Day 0) and final refractive outcome 1 month post-op visit
|
at 8 weeks (Day 0) and final refractive outcome 1 month post-op visit
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
The change in inflammatory markers measured by MMP9
Time Frame: 6 weeks BEFORE surgery from pre-insert at 8 weeks BEFORE surgery
|
6 weeks BEFORE surgery from pre-insert at 8 weeks BEFORE surgery
|
|
Change in Tear Break-up Time
Time Frame: 6 weeks BEFORE surgery from pre-insert at 8 weeks BEFORE surgery
|
6 weeks BEFORE surgery from pre-insert at 8 weeks BEFORE surgery
|
|
Change in Standard Patient Evaluation of Eye Dryness Questionnaire (SPEED)
Time Frame: 6 weeks BEFORE surgery from pre-insert at 8 weeks BEFORE surgery
|
The Standard Patient Evaluation of Eye Dryness Questionnaire (SPEED) evaluates both the frequency and severity of symptoms.
The patient grades the severity of her symptoms on a scale of zero to four with zero being no symptoms and four being intolerable symptoms.
The numeric value for each answer is simply added with scores ranging from zero to 28. 0-4 MILD dry eye symptoms, 5-7 MODERATE dry eye symptoms, + SEVERE dry eye symptoms.
|
6 weeks BEFORE surgery from pre-insert at 8 weeks BEFORE surgery
|
Collaborators and Investigators
Sponsor
Collaborators
Investigators
- Principal Investigator: Cynthia Matossian, MD, Matossian Eye Associates
Publications and helpful links
General Publications
- Epitropoulos AT, Matossian C, Berdy GJ, Malhotra RP, Potvin R. Effect of tear osmolarity on repeatability of keratometry for cataract surgery planning. J Cataract Refract Surg. 2015 Aug;41(8):1672-7. doi: 10.1016/j.jcrs.2015.01.016.
- Kim P, Plugfelder S, Slomovic AR. Top 5 pearls to consider when implanting advanced-technology IOLs in patients with ocular surface disease. Int Ophthalmol Clin. 2012 Spring;52(2):51-8. doi: 10.1097/IIO.0b013e31824b4504. No abstract available.
- Goldberg DF. Preoperative evaluation of patients before cataract and refractive surgery. Int Ophthalmol Clin. 2011 Spring;51(2):97-107. doi: 10.1097/IIO.0b013e31820f1f76. No abstract available.
- Ale Magar JB. Comparison of the corneal curvatures obtained from three different keratometers. Nepal J Ophthalmol. 2013 Jan-Jun;5(1):9-15. doi: 10.3126/nepjoph.v5i1.7815.
- Manning CA, Kloess PM. Comparison of portable automated keratometry and manual keratometry for IOL calculation. J Cataract Refract Surg. 1997 Oct;23(8):1213-6. doi: 10.1016/s0886-3350(97)80318-5.
Study record dates
Study Major Dates
Study Start (Anticipated)
Primary Completion (Anticipated)
Study Completion (Anticipated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
- Lens Diseases
- Lacrimal Apparatus Diseases
- Keratoconjunctivitis
- Conjunctivitis
- Conjunctival Diseases
- Keratitis
- Corneal Diseases
- Eye Diseases
- Cataract
- Dry Eye Syndromes
- Keratoconjunctivitis Sicca
- Physiological Effects of Drugs
- Molecular Mechanisms of Pharmacological Action
- Autonomic Agents
- Peripheral Nervous System Agents
- Enzyme Inhibitors
- Anti-Inflammatory Agents
- Antineoplastic Agents
- Antiemetics
- Gastrointestinal Agents
- Glucocorticoids
- Hormones
- Hormones, Hormone Substitutes, and Hormone Antagonists
- Antineoplastic Agents, Hormonal
- Protease Inhibitors
- Dexamethasone
- Dexamethasone acetate
- BB 1101
Other Study ID Numbers
- DEXTENZA OTX
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
product manufactured in and exported from the U.S.
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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