ArticleOphthalmology and therapy2026
Treatment Persistence with Combination Eye Drops for Glaucoma: A Longitudinal Analysis Using Japanese Medical Claims Data.
Article in Ophthalmology and therapy, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
introductionGlaucoma is a chronic progressive disease and the leading cause of blindness, particularly among older individuals. Treatment persistence with intraocular pressure (IOP)-lowering therapy is essential to avoid visual impairment, although data on persistence with combination eye-drop therapy are lacking. The objective of this study was to evaluate treatment persistence with combination eye-drop therapy in Japanese patients with glaucoma or ocular hypertension.
methodsThis longitudinal cohort study analysed anonymised insurance claims data from the DeSC database. Adults (≥ 18 years) with glaucoma or ocular hypertension who initiated IOP-lowering therapy within the same month as their diagnosis between June 2020 and May 2023 were included. The primary outcomes were: (1) treatment persistence among patients who initiated carteolol/latanoprost-based combination therapy (research question [RQ] 1); (2) persistence according to the number of bottles and active IOP-lowering ingredients (RQ2); (3) persistence according to the number of bottles of eye drops (RQ3); and (4) persistence according to concomitant use of different IOP-lowering drugs (RQ6).
resultsAmong patients who initiated carteolol/latanoprost (RQ1 cohort; n = 28,560), the 360-day persistence rates were highest with concomitant brimonidine/brinzolamide (23.0%) and lowest with ripasudil (16.5%). The median duration of persistence was longer with concomitant brimonidine or brimonidine/brinzolamide versus concomitant brinzolamide, ripasudil or dorzolamide (148 vs 130, 120 and 117 days, respectively). Persistence also increased with increasing number of active IOP-lowering ingredients (RQ2 cohort; two-bottles, n = 160,481; three-bottles, n = 48,994) but declined with increasing number of bottles of eye drops (RQ3 cohort; n = 188,676). Combination therapy with a β-blocker plus a prostaglandin F2α receptor agonist showed a trend towards having the longest persistence duration, while β-blocker plus carbonic anhydrase inhibitor regimens showed a trend towards the shortest duration (RQ6).
conclusionThese findings suggest that treatment persistence with combination eye-drop therapy in Japanese patients with glaucoma or ocular hypertension may differ depending on the IOP-lowering regimen.
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