PMID- 27157843 OWN - NLM STAT- MEDLINE DCOM- 20170630 LR - 20220316 IS - 1549-4713 (Electronic) IS - 0161-6420 (Linking) VI - 123 IP - 8 DP - 2016 Aug TI - Six-Month Intraocular Pressure Reduction with a Topical Bimatoprost Ocular Insert: Results of a Phase II Randomized Controlled Study. PG - 1685-1694 LID - S0161-6420(16)30203-2 [pii] LID - 10.1016/j.ophtha.2016.04.026 [doi] AB - PURPOSE: Improving adherence to manage elevated intraocular pressure (IOP) remains an unmet need. A topical bimatoprost ocular insert was compared with twice-daily timolol eye drops in patients with open-angle glaucoma (OAG) or ocular hypertension (OHT) treated for 6 months. DESIGN: Parallel-arm, multicenter, double-masked, randomized, controlled trial. PARTICIPANTS: One hundred thirty adult OAG or OHT patients. METHODS: Eligible patients were randomized 1:1 to receive a bimatoprost insert plus artificial tears twice daily or a placebo insert plus timolol (0.5% solution) twice daily for 6 months after a screening washout period. Diurnal IOP measurements (at 0, 2, and 8 hours) were obtained at baseline; weeks 2, 6, and 12; and months 4, 5, and 6. Key eligibility included washout IOP of 23 mmHg or more at time 0, IOP of 20 mmHg or more at 2 and 8 hours, and IOP of 34 mmHg or less at all time points; no prior incisional surgery for OAG or OHT; and no known nonresponders to prostaglandins. MAIN OUTCOME MEASURES: The primary efficacy end point examined the difference in mean change from baseline in diurnal IOPs (point estimate, 95% confidence interval) across 9 coprimary end points at weeks 2, 6, and 12 comparing the bimatoprost arm with the timolol arm using a noninferiority margin of 1.5 mmHg. Secondary end points were diurnal IOP measurements at months 4, 5, and 6 and adverse events (AEs). RESULTS: A mean reduction from baseline IOP of -3.2 to -6.4 mmHg was observed for the bimatoprost group compared with -4.2 to -6.4 mmHg for the timolol group over 6 months. The study met the noninferiority definition at 2 of 9 time points but was underpowered for the observed treatment effect. Adverse events were consistent with bimatoprost or timolol exposure; no unexpected ocular AEs were observed. Primary retention rate of the insert was 88.5% of patients at 6 months. CONCLUSIONS: Clinically relevant reduction in mean IOP was observed over 6 months with a bimatoprost ocular insert and seems to be safe and well tolerated. The topically applied bimatoprost insert may provide an alternative to daily eye drops to improve adherence, consistency of delivery, and reduction of elevated IOP. CI - Copyright (c) 2016 American Academy of Ophthalmology. Published by Elsevier Inc. All rights reserved. FAU - Brandt, James D AU - Brandt JD AD - Department of Ophthalmology & Vision Science, University of California, Davis, Sacramento, California. Electronic address: jdbrandt@ucdavis.edu. FAU - Sall, Kenneth AU - Sall K AD - Sall Research Medical Center, Artesia, California. FAU - DuBiner, Harvey AU - DuBiner H AD - Clayton Eye Center, Morrow, Georgia. FAU - Benza, Robert AU - Benza R AD - Apex Eye, Cincinnati, Ohio. FAU - Alster, Yair AU - Alster Y AD - ForSight VISION5, Inc., Menlo Park, California. FAU - Walker, Gary AU - Walker G AD - ForSight VISION5, Inc., Menlo Park, California. FAU - Semba, Charles P AU - Semba CP AD - ForSight VISION5, Inc., Menlo Park, California. CN - Collaborators LA - eng PT - Clinical Trial, Phase II PT - Comparative Study PT - Journal Article PT - Multicenter Study PT - Randomized Controlled Trial PT - Research Support, Non-U.S. Gov't DEP - 20160505 PL - United States TA - Ophthalmology JT - Ophthalmology JID - 7802443 RN - 0 (Antihypertensive Agents) RN - 0 (Delayed-Action Preparations) RN - 817W3C6175 (Timolol) RN - QXS94885MZ (Bimatoprost) SB - IM MH - Administration, Topical MH - Adult MH - Aged MH - Aged, 80 and over MH - Antihypertensive Agents/adverse effects/*therapeutic use MH - Bimatoprost/adverse effects/*therapeutic use MH - Delayed-Action Preparations MH - Double-Blind Method MH - Female MH - Follow-Up Studies MH - Glaucoma, Open-Angle/*drug therapy/physiopathology MH - Humans MH - Intraocular Pressure/*drug effects/physiology MH - Male MH - Middle Aged MH - Prospective Studies MH - Timolol/adverse effects/therapeutic use MH - Tonometry, Ocular FIR - Budenz, Donald IR - Budenz D FIR - Day, Douglas IR - Day D FIR - Flowers, Brian IR - Flowers B FIR - Lee, Steven IR - Lee S FIR - Nguyen, Quang IR - Nguyen Q FIR - Wirta, David IR - Wirta D EDAT- 2016/05/10 06:00 MHDA- 2017/07/01 06:00 CRDT- 2016/05/10 06:00 PHST- 2015/12/22 00:00 [received] PHST- 2016/04/15 00:00 [revised] PHST- 2016/04/15 00:00 [accepted] PHST- 2016/05/10 06:00 [entrez] PHST- 2016/05/10 06:00 [pubmed] PHST- 2017/07/01 06:00 [medline] AID - S0161-6420(16)30203-2 [pii] AID - 10.1016/j.ophtha.2016.04.026 [doi] PST - ppublish SO - Ophthalmology. 2016 Aug;123(8):1685-1694. doi: 10.1016/j.ophtha.2016.04.026. Epub 2016 May 5.