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Abstract #117147 Published in IGR 24-4
An Evaluation of the Efficacy and Safety of Timolol Maleate 0.5% Microdrops Administered with the Nanodropper
Steger JS; Durai I; Odayappan A; Raman R; Sruthi T; Song AJ; Puthuran G; Venkatesh R; Colantuoni E; Robin ALOphthalmology 2024; 131: 1045-1055
PURPOSE: To examine if 12.5 μl timolol maleate 0.5% microdrops dispensed with the Nanodropper Adaptor provide noninferior intraocular pressure (IOP) reduction compared with conventional 28 μl drops in patients with open-angle glaucoma (OAG) and ocular hypertension (OHT). DESIGN: Prospective, noninferiority, parallel, multicenter, single-masked, active-controlled, randomized trial. PARTICIPANTS: Treatment-naïve subjects who were recently diagnosed with OAG and OHT at the Aravind Eye Care System. METHODS: Both eyes of subjects received 1 commercially available drop or both eyes of subjects received 1 microdrop of timolol maleate 0.5%. We measured IOP, resting heart rate (HR), and blood pressure (BP) at baseline and 1, 2, 5, and 8 hours after timolol administration. MAIN OUTCOME MEASURES: The IOP was the primary outcome measure. Secondary outcomes were resting HR, systolic BP (sBP), and diastolic BP (dBP). RESULTS: Adaptor-mediated microdrops and conventional drops of timolol significantly decreased IOP compared with baseline at all timepoints. Noninferiority was established at 3 of 4 timepoints. Heart rate decreases with Nanodropper were approximately 3 beats per minute (bpm) less than with conventional drops. CONCLUSIONS: Timolol microdrops appear to be as effective in ocular hypotensive action as conventional drops with a slightly attenuated effect on resting HR and BP. FINANCIAL DISCLOSURE(S): Proprietary or commercial disclosure may be found after the references.
Nanodropper, Inc., Rochester, Minnesota.
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