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1.
Expert Review of Ophthalmology ; : 1-7, 2022.
Article in English | Web of Science | ID: covidwho-2017470

ABSTRACT

Purpose: To evaluate the efficacy and safety of intravitreal dexamethasone (DEX) implantation for diabetic macular edema (DME) that proved unresponsive to previous anti-vascular endothelial growth factor (VEGF) treatment. Methods: This prospective interventional study recruited 91 patients with refractory DME after previous anti-VEGF treatments in one or both eyes. All patients were followed up for at least 12 months. Best-corrected visual acuity (BCVA), central subfield thickness (CST) and macular volume were measured. Results: Over the 12 months, a mean of 2.1 +/- 0.8 DEX implantations were administered per eye;26 eyes (28.9%) received 1 implantation, 31 (34.4%) received 2, and 34 (36.7%) received 3. BCVA was significantly improved in the first 6 months, from 54.8 to 59.5 letters. Both CST and macular volume decreased significantly after DEX implantation and maintained these improvements for at least 12 months. Subjects who needed the second DEX implantation had a greater number of prior anti-VEGF injections than did those who needed only one implantation (6.0 vs 3.0). Conclusions: Two-thirds of refractory DME required less than two DEX implantations to maintain a dry macula for 12 months. Early switching to intravitreal DEX can be considered as the second-line therapeutic option, especially during the COVID-19 pandemic.

2.
Drug Development and Delivery ; 22(4):18-23, 2022.
Article in English | Scopus | ID: covidwho-2012508
3.
Pharmaceutical Technology ; 46(1):44-45, 2022.
Article in English | EMBASE | ID: covidwho-1980985
5.
Ther Adv Ophthalmol ; 14: 25158414211072623, 2022.
Article in English | MEDLINE | ID: covidwho-1677478

ABSTRACT

Ranibizumab has proven its efficacy in various retinal diseases and particularly in neovascular age-related macular degeneration (nAMD). The number of injections and the frequent follow-up visits has been burdensome to patients particularly during the COVID era. Ranibizumab port delivery system (RPDS) seems to be a boon in prolonging the action of the drug without the need for frequent injections and follow-up visits. This review article highlights the dosage, adverse effects, and visual outcome associated with various trials of RPDS. For this article, we conducted a PubMed search and review of literature on nAMD, the incidence of AMD, anti-vascular endothelial growth factor (anti-VEGF) agents, RPDS, phase-1 trial of RPDS, phase-2 (LADDER trial) of RPDS, phase-3 (ARCHWAY trial) of RPDS, PORTAL trial of RPDS, results of phase-1 trial of RPDS, results of phase-2 (LADDER) trial of RPDS, and results of phase-3 (ARCHWAY) trial of RPDS.

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