EyeWorld Today is the official daily of the ASCRS Symposium & Congress. Each issue provides comprehensive coverage editorial coverage of meeting presentations, events, and breaking news
Issue link: https://daily.eyeworld.org/i/1248357
42 | EYEWORLD DAILY NEWS | MAY 18, 2020 DAILY NEWS ASCRS VIRTUAL ANNUAL MEETING In the study, visual acuity overall improved, Dr. Dockery said. Looking at best specta- cle-corrected visual acuity, about half of eyes had vision worse than 20/40 preop, and at 1 month, 85% of eyes had 20/40 vision or better. At 1 year, nearly half of eyes had BSCVA of 20/25, with 100% showing an improvement of VA at 6 months. When looking at corneal thickness and endothelial cell density, the trends were as expected. The cornea thinned as it cleared, and there was a rapid decline in endothelial cell density immediately after the surgery, which leveled off to a slow decline after 6 months. "We noticed, in our patient population, that there was a significant flattening of the cornea following DMEK," Dr. Dockery said. "The average cornea flattened at 1 month, continued to flatten at 6 months, and seemed to level off between 6 and 12 months, reaching a total of about 3 D of flattening in the average cornea." by Ellen Stodola Editorial Co-Director DMEK studies highlighted in papers BRIEF SUMMARY: Please see the DEXTENZA Package Insert for full prescribing information for DEXTENZA (06/2019) 1 INDICATIONS AND USAGE DEXTENZA ® (dexamethasone ophthalmic insert) is a corticosteroid indicated for the treatment of ocular inflammation and pain following ophthalmic surgery. 4 CONTRAINDICATIONS DEXTENZA is contraindicated in patients with active corneal, conjunctival or canalicular infections, including epithelial herpes simplex keratitis (dendritic keratitis), vaccinia, varicella; mycobacterial infections; fungal diseases of the eye, and dacryocystitis. 5 WARNINGS AND PRECAUTIONS 5.1 Intraocular Pressure Increase Prolonged use of corticosteroids may result in glaucoma with damage to the optic nerve, defects in visual acuity and fields of vision. Steroids should be used with caution in the presence of glaucoma. Intraocular pressure should be monitored during the course of the treatment. 5.2 Bacterial Infection Corticosteroids may suppress the host response and thus increase the hazard for secondary ocular infections. In acute purulent conditions, steroids may mask infection and enhance existing infection [see Contraindications (4)]. 5.3 Viral Infections Use of ocular steroids may prolong the course and may exacerbate the severity of many viral infections of the eye (including herpes simplex) [see Contraindications (4)]. 5.4 Fungal Infections Fungus invasion must be considered in any persistent corneal ulceration where a steroid has been used or is in use. Fungal culture should be taken when appropriate [see Contraindications (4)]. 5.5 Delayed Healing The use of steroids after cataract surgery may delay healing and increase the incidence of bleb formation. 6 ADVERSE REACTIONS The following serious adverse reactions are described elsewhere in the labeling: • Intraocular Pressure Increase [see Warnings and Precautions (5.1)] • Bacterial Infection [see Warnings and Precautions (5.2)] • Viral Infection [see Warnings and Precautions (5.3)] • Fungal Infection [see Warnings and Precautions (5.4)] • Delayed Healing [see Warnings and Precautions (5.5)] 6.1 Clinical Trials Experience Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice. Adverse reactions associated with ophthalmic steroids include elevated intraocular pressure, which may be associated with optic nerve damage, visual acuity and field defects, posterior subcapsular cataract formation; delayed wound healing; secondary ocular infection from pathogens including herpes simplex, and perforation of the globe where there is thinning of the cornea or sclera [see Warnings and Precautions (5)]. DEXTENZA was studied in four randomized, vehicle-controlled studies (n = 567). The mean age of the population was 68 years (range 35 to 87 years), 59% were female, and 83% were white. Forty-seven percent had brown iris color and 30% had blue iris color. The most common ocular adverse reactions that occurred in patients treated with DEXTENZA were: anterior chamber inflammation including iritis and iridocyclitis (10%); intraocular pressure increased (6%); visual acuity reduced (2%); cystoid macular edema (1%); corneal edema (1%); eye pain (1%) and conjunctival hyperemia (1%). The most common non-ocular adverse reaction that occurred in patients treated with DEXTENZA was headache (1%). 8 USE IN SPECIFIC POPULATIONS 8.1 Pregnancy Risk Summary There are no adequate or well-controlled studies with DEXTENZA in pregnant women to inform a drug-associated risk for major birth defects and miscarriage. In animal reproduction studies, administration of topical ocular dexamethasone to pregnant mice and rabbits during organogenesis produced embryofetal lethality, cleft palate and multiple visceral malformations [see Animal Data]. Data Animal Data Topical ocular administration of 0.15% dexamethasone (0.75 mg/kg/day) on gestational days 10 to 13 produced embryofetal lethality and a high incidence of cleft palate in a mouse study. A daily dose of 0.75 mg/kg/day in the mouse is approximately 5 times the entire dose of dexamethasone in the DEXTENZA product, on a mg/m 2 basis. In a rabbit study, topical ocular administration of 0.1% dexamethasone throughout organogenesis (0.36 mg /day, on gestational day 6 followed by 0.24 mg/day on gestational days 7-18) produced intestinal anomalies, intestinal aplasia, gastroschisis and hypoplastic kidneys. A daily dose of 0.24 mg/day is approximately 6 times the entire dose of dexamethasone in the DEXTENZA product, on a mg/m 2 basis. 8.2 Lactation Systemically administered corticosteroids appear in human milk and could suppress growth and interfere with endogenous corticosteroid production; however the systemic concentration of dexamethasone following administration of DEXTENZA is low [see Clinical Pharmacology (12.3)]. There is no information regarding the presence of DEXTENZA in human milk, the effects of the drug on the breastfed infant or the effects of the drug on milk production to inform risk of DEXTENZA to an infant during lactation. The developmental and health benefits of breastfeeding should be considered along with the mother's clinical need for DEXTENZA and any potential adverse effects on the breastfed child from DEXTENZA. 8.4 Pediatric Use Safety and effectiveness in pediatric patients have not been established. 8.5 Geriatric Use No overall differences in safety or effectiveness have been observed between elderly and younger patients. 17 PATIENT COUNSELING INFORMATION Advise patients to consult their surgeon if pain, redness, or itching develops. MANUFACTURED FOR: Ocular Therapeutix, Inc. Bedford, MA 01730 USA PP-US-DX-0072-V2 Dr. Basak shows the difference in donor preparation between DMEK-pD and DMEK-cD. Source: Samar Basak, MD, screenshot from presentation continued on page 46 D uring a paper session on corneal procedures, Philip Dockery, MD, Birmingham, Alabama, presented on DMEK in kerato- conus, specifically looking at clinical outcomes in eyes with comorbid keratoconus and cor- neal endothelial dysfunction. "DMEK is considered the gold standard for corneal endothelial dysfunction," Dr. Dockery said. It has better out- comes than DSAEK and boasts faster and more complete visual recovery, he said, add- ing that DMEK also has fewer intraoperative and postopera- tive complications. However, he noted that since DMEK is a newer procedure, there are certain cohorts of the popula- tion where the full extent of the outcomes is unclear. To investigate patients with keratoconus, Dr. Dock- ery and colleagues designed a case series with 24 eyes in 14 patients who underwent DMEK for endothelial dysfunction and had a prior diagnosis of kera- toconus. The patients treated had a wide range of severity of disease for keratoconus.