PMID- 37923251 OWN - NLM STAT- MEDLINE DCOM- 20240325 LR - 20240325 IS - 1549-4713 (Electronic) IS - 0161-6420 (Linking) VI - 131 IP - 4 DP - 2024 Apr TI - Elamipretide Topical Ophthalmic Solution for the Treatment of Subjects with Leber Hereditary Optic Neuropathy: A Randomized Trial. PG - 422-433 LID - S0161-6420(23)00802-3 [pii] LID - 10.1016/j.ophtha.2023.10.033 [doi] AB - PURPOSE: This study aimed to assess the safety, tolerability, and potential efficacy of topical elamipretide in patients affected with Leber hereditary optic neuropathy (LHON). DESIGN: This phase II, prospective, randomized, vehicle-controlled, single-center clinical trial involved administration of elamipretide 1% topical ophthalmic solution to patients with LHON over a 52-week double-masked treatment period, followed by an open-label extension (OLE) for up to 108 additional weeks of treatment. PARTICIPANTS: Twelve patients with LHON were included in this study. Patients aged 18 to 50 years with decreased vision for at least >/= 1 year and A LHON were eligible for this trial. METHODS: For the first 52 weeks of the study, patients were randomized to 1 of 3 groups: elamipretide in both eyes or elamipretide in 1 eye (left eye and right eye were considered separate groups) and vehicle in the other eye, followed by an OLE in which both eyes were treated with elamipretide. MAIN OUTCOME MEASURES: The primary outcome measure was assessment of adverse events (AEs) from the administration of topical elamipretide, and the primary efficacy end point was change in best-corrected visual acuity (BCVA). Secondary outcome measures included changes in color vision, visual field mean deviation, and electrophysiological outcomes. RESULTS: Elamipretide was well tolerated with the majority of AEs being mild to moderate and resolving spontaneously. The change from baseline in BCVA in elamipretide-treated eyes was not significantly different from the vehicle eyes at any time point. Six of 12 subjects met the criteria for clinically relevant benefit (CRB). In the post hoc analysis, change from baseline in mean deviation in the central visual field was significantly greater in elamipretide-treated eyes versus the vehicle eyes. Compared with baseline, both treatment groups showed improvement in color discrimination and contrast sensitivity in the OLE. CONCLUSIONS: Elamipretide treatment was generally well tolerated, with no serious AEs reported. Although this study did not meet its primary BCVA efficacy end point, improvements across assessments on visual function during the OLE and the post hoc findings of the Humphrey automated visual field central region were encouraging and require further exploration. FINANCIAL DISCLOSURE(S): The author(s) have no proprietary or commercial interest in any materials discussed in this article. CI - Copyright (c) 2023 American Academy of Ophthalmology. Published by Elsevier Inc. All rights reserved. FAU - Karanjia, Rustum AU - Karanjia R AD - Doheny Eye Centers UCLA, Department of Ophthalmology, David Geffen School of Medicine at UCLA, Los Angeles, California; Doheny Eye Institute, Los Angeles, California; Department of Ophthalmology, Universtiy of Ottawa, Ottawa, Canada; Ottawa Eye Institute, The Otawa Hospital, Ottawa, Canada. Electronic address: Rkaranjia@toh.ca. FAU - Sadun, Alfredo A AU - Sadun AA AD - Doheny Eye Centers UCLA, Department of Ophthalmology, David Geffen School of Medicine at UCLA, Los Angeles, California; Doheny Eye Institute, Los Angeles, California. LA - eng PT - Clinical Trial, Phase II PT - Journal Article PT - Randomized Controlled Trial DEP - 20231103 PL - United States TA - Ophthalmology JT - Ophthalmology JID - 7802443 RN - 0 (arginyl-2,'6'-dimethyltyrosyl-lysyl-phenylalaninamide) RN - 0 (Ophthalmic Solutions) RN - 0 (Oligopeptides) SB - IM MH - Humans MH - *Optic Atrophy, Hereditary, Leber/diagnosis MH - Prospective Studies MH - Ophthalmic Solutions/therapeutic use MH - Visual Acuity MH - *Oligopeptides OTO - NOTNLM OT - Elamipretide OT - LHON OT - Optic neuropathy OT - Visual acuity EDAT- 2023/11/06 03:54 MHDA- 2024/03/25 06:42 CRDT- 2023/11/03 20:20 PHST- 2023/08/03 00:00 [received] PHST- 2023/10/03 00:00 [revised] PHST- 2023/10/17 00:00 [accepted] PHST- 2024/03/25 06:42 [medline] PHST- 2023/11/06 03:54 [pubmed] PHST- 2023/11/03 20:20 [entrez] AID - S0161-6420(23)00802-3 [pii] AID - 10.1016/j.ophtha.2023.10.033 [doi] PST - ppublish SO - Ophthalmology. 2024 Apr;131(4):422-433. doi: 10.1016/j.ophtha.2023.10.033. Epub 2023 Nov 3.