Oral minocycline for the treatment of retinitis pigmentosa-associated cystoid macular edema: results of a phase I/II clinical trial.
Oral minocycline for the treatment of retinitis pigmentosa-associated cystoid macular edema: results of a phase I/II clinical trial.
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口服米诺环素治疗色素性视网膜炎相关黄斑囊样水肿:I/II 期临床试验的结果。
DOI:
10.1007/s00417-023-05986-6
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发表时间:
2023
期刊:
影响因子:
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通讯作者:
Cukras,CatherineA
中科院分区:
文献类型:
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作者:
Dave,AmishaD;Chen,KatherineG;Chiang,TrentTsun-Kang;Singaravelu,Janani;Alvarez,JasonA;Wong,WaiT;Cukras,CatherineA
PurposeThe etiology of retinitis pigmentosa (RP)–associated cystoid macular edema (CME) has been related to retinal neuroinflammation and microglial activation. Minocycline, a drug FDA-approved for anti-microbial indications, also inhibits microglial activation and expression of inflammatory mediators. This study investigates the safety and efficacy of oral minocycline as primary treatment for RP-associated CME.MethodsA single-center, prospective, open-label phase I/II clinical trial enrolled five participants with RP-associated CME. Participants had lead-in assessments prior to the initiation of oral minocycline 100 mg twice daily for 12 months. Main outcome variables included changes in best-corrected visual acuity (BCVA) and retinal central subfield thickness (CST) measured using spectral domain optical coherence tomography relative to mean of pre-treatment measurements.ResultsThe study drug was well tolerated and not associated with any severe adverse events. No significant changes in mean BCVA from study baseline were noted in either the study eye (+ 0.7 ± 4.1 letters at 6 months, − 1.1 ± 1.7 letters at 12 months) or the qualifying fellow eye (− 0.3 ± 3.4 letters at 6 months, − 0.3 ± 4.6 letters at 12 months) (p> 0.05 for all comparisons). Mean percentage changes in CST from baseline however decreased progressively with treatment (decreases at 6 and 12 months: study eyes 3.9 and 9.8%; qualifying fellow eyes 1.4 and 7.7%). Considering all eyes (n= 10), mean percentage CST decrease at 6 and 12 months was 2.7 ± 9.5% (p= 0.39) and 8.7 ± 9.5% (p= 0.02) respectively.ConclusionOral minocycline administration over 12 months was associated with no significant changes in mean BCVA and a small but progressive decrease in mean CST.Trial registrationNCT02140164 (05/2014).