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나이관련황반변성 환자에서 라니비주맙, 애플리버셉트에서 베바시주맙으로 변경 후 임상 양상 변화

Clinical Changes after Switching from Ranibizumab/Aflibercept to Bevacizumab in Exudative Age-related Macular Degeneration

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목적: 습성 황반변성 환자에서 라니비주맙 또는 애플리버셉트의 보험급여 횟수의 제한으로 인하여 베바시주맙으로 약제를 변경한 후 임상 양상의 변화를 알아보고자 하였다. 대상과 방법: 습성 나이관련황반변성으로 진단되어 라니비주맙이나 애플리버셉트로 6개월 이상 연속 치료를 받던 중 보험급여 횟수가 만료되어 베바시주맙으로 약제를 변경한 후 6개월 이상 유리체강내 주사술을 시행 받은 환자를 대상으로 하였다. 베바시주맙으로 약제를 변경한 시점을 중심으로 1년간 최대교정시력, 중심영역황반두께, 질병활성도의 유무 및 주사 횟수를 조사하였다. 결과: 총 40명(남성 26명, 여성 14명) 40안이 본 연구에 포함되었다. 평균 연령은 71.9세(56-89)였으며 전형적인 나이관련황반변성은 23안, 결절맥락막혈관병증은 15안, 그리고 망막혈관종성증식은 2안이었다. 6개월간 주사 횟수는 약제 전환 전 2.3 ± 0.7회에서 전환 후 2.9 ± 1.0회로 유의하게 증가하였다. 약제 전환 6개월 전과 전환 시점 사이의 logMAR 시력은 0.55 ± 0.34에서 0.52 ± 0.27로 유의한 변화가 없었으나(p=0.300), 전환 후 6개월에 0.57 ± 0.34로 유의하게 감소하였다(p=0.018). 중심영역황반두께나 질병활성도는 유의한 차이가 없었다. 결론: 라니비주맙이나 애플리버셉트로 치료받던 습성 황반변성 환자에서 유사한 수준의 해부학적 상태를 얻기 위해서는 베바시주맙은 더 많은 주사를 필요로 하였으나 그럼에도 불구하고 시력은 감소하였다.

Abstract

Purpose: This study was performed to investigate the changes in clinical findings after switching from ranibizumab or aflibercept to bevacizumab due to the limited number of insured injections in patients with exudative age-related macular degeneration (ARMD). Methods: The study population consisted of patients who had undergone intravitreal injection of ranibizumab or aflibercept for ≥ 6 months and were then treated with bevacizumab for ≥ 6 consecutive months for exudative ARMD. We evaluated best-corrected visual acuity, central subfield macular thickness, disease activity, and the number of injections for one year at the time of switching the drugs. Results: Forty patients (26 men and 14 women) were included in the analysis. The mean age was 71.9 (56-89) years old, with typical ARMD in 23 eyes, polypoidal choroidal vasculopathy in 15 eyes, and retinal angiomatous proliferation in two eyes. The number of injections for 6 months increased from 2.3 to 2.9 after switching the drugs (p < 0.001). Visual acuity was not significantly different between 6 months before and at the time of switching (LogMAR 0.55 ± 0.34 and 0.52 ± 0.27, respectively) (p = 0.300), but decreased significantly to 0.57 ± 0.34 at 6 months after switching (p = 0.018). There were no significant differences in central subfield macular thickness or disease activity. Conclusions: Bevacizumab required more injections to achieve similar anatomical outcomes in patients with exudative ARMD treated with ranibizumab or aflibercept, and visual acuity decreased despite anatomical stability.

참고문헌 (24)

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