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要約 目的:選択的EP2受容体作動薬であるオミデネパグイソプロピル(以下,オミデネパグ)について,第一選択としての新規単独使用例と他のプロスタグランジン製剤からの変更例とで緑内障に対する投与後1年の治療成績を検証した。
対象と方法:オミデネパグを投与し,1年以上経過観察を行うことができた102例を対象とした。男性33例,女性69例で,平均年齢65.2±13.0歳であった。病型は正常眼圧緑内障77例,原発開放隅角緑内障17例,前視野緑内障8例であった。新規単独投与が75例,プロスタグランジン製剤からの切り替えが27例であり,オミデネパグ投与後の眼圧,視野および有害事象を評価した。
結果:新規単独投与群では投与前の平均眼圧は14.1±3.9mmHgで,投与6か月後11.6±2.9mmHg,1年後11.8±3.1mmHgと各時期において有意に低下した。切り替え群では切り替え前12.3±2.2mmHg,6か月後11.3±2.5mmHg,1年後12.1±2.0mmHgであり,有意な眼圧下降効果はなかった。有害事象は結膜充血が5例(4.9%)で,虹彩炎,黄斑浮腫,虹彩色素沈着などは認められなかった。新規単独投与群でのノンレスポンダーは26例(34.7%)であった。
結論:オミデネパグの新規単独投与により1年にわたり眼圧の有意な下降が認められ,プロスタグランジン製剤からの切り替え症例においては切り替え前と比べて眼圧下降に差はなかった。オミデネパグによるプロスタグランジン関連眼窩周囲症の出現は皆無であった。
Abstract Purpose:To investigate the 1-year outcome of selective prostagrandin E2 receptor agonist, omidenepag isopropyl ophthalmic solution 0.002%(OMDI)usage in initial treatment and switching from conventional prostaglandin F2α to OMDI for primary open angle glaucoma.
Materials and methods:One hundred two eyes of 102 patients who received OMDI for one year were assessed. The subjects were comprised of 33 men and 69 women. The average age was 65.2±13.0 years. The classification involved 77 cases of normal tension glaucoma, 17 cases of primary open angle glaucoma, and 8 cases of preperimetric glaucoma. OMDI was administered as an initial treatment in 75 patients and was switched from prostaglandin F2α in 27 patients. The IOP lowering effect visual field defects and the adverse effects were assessed.
Results:As an initial treatment, the average IOP was 14.1±3.9 mmHg before treatment. It lowered to 11.6±2.9 mmHg at 6 months, and 11.8±3.1 mmHg at 1 year respectively. When we switched the prostaglandins to the OMDI, the average IOP was 12.3±2.2 mmHg before switching and resulted in 12.1±2.0 mmHg at 1 year, which was no different. The adverse effect of conjunctival injection occured in 5 cases, whereas iridocyclitis, macular edema, and pigmentation of the iris were not observed in any cases over time. There were 26(34.7%)non-responder patients after initial treatment.
Conclusions:OMDI reduced IOP for 1 year in patients with open angle glaucoma and preperimetric glaucoma after initial treatment. Additionally, OMDI showed equivalent IOP lowering effect when switched to from conventional prostaglandin F2α;thus, it was just maintained. No perioribital adverse effects were found during the follow-up period.
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