The effect of Combination Therapy of Inhaled Corticosteroids and Long-acting Beta2-agonists on Acute Exacerbation in Moderate to Severe COPD Patients

중등증 이상의 COPD 환자에서 흡입용 스테로이드와 지속성 β2-항진제 복합제제사용시 용량의 차이가 급성악화에 미치는 영향

  • Jeong, Hye Cheol (Department of Internal Medicine, College of Medicine, Korea University) ;
  • Ha, Eun Sil (Department of Internal Medicine, College of Medicine, Korea University) ;
  • Jung, Jin Yong (Department of Internal Medicine, College of Medicine, Korea University) ;
  • Lee, Kyung Ju (Department of Internal Medicine, College of Medicine, Korea University) ;
  • Lee, Seung Hyeun (Department of Internal Medicine, College of Medicine, Korea University) ;
  • Kim, Se Joong (Department of Internal Medicine, College of Medicine, Korea University) ;
  • Lee, Eun Joo (Department of Internal Medicine, College of Medicine, Korea University) ;
  • Hur, Gyu Young (Department of Internal Medicine, College of Medicine, Korea University) ;
  • Lee, Sung Yong (Department of Internal Medicine, College of Medicine, Korea University) ;
  • Kim, Je Hyeong (Department of Internal Medicine, College of Medicine, Korea University) ;
  • Lee, Sang Yeub (Department of Internal Medicine, College of Medicine, Korea University) ;
  • Shin, Chol (Department of Internal Medicine, College of Medicine, Korea University) ;
  • Shim, Jae Jeong (Department of Internal Medicine, College of Medicine, Korea University) ;
  • In, Kwang Ho (Department of Internal Medicine, College of Medicine, Korea University) ;
  • Kang, Kyung Ho (Department of Internal Medicine, College of Medicine, Korea University) ;
  • Yoo, Se Hwa (Department of Internal Medicine, College of Medicine, Korea University)
  • 정혜철 (고려대학교 내과학교실 호흡기내과) ;
  • 하은실 (고려대학교 내과학교실 호흡기내과) ;
  • 정진용 (고려대학교 내과학교실 호흡기내과) ;
  • 이경주 (고려대학교 내과학교실 호흡기내과) ;
  • 이승현 (고려대학교 내과학교실 호흡기내과) ;
  • 김세중 (고려대학교 내과학교실 호흡기내과) ;
  • 이은주 (고려대학교 내과학교실 호흡기내과) ;
  • 허규영 (고려대학교 내과학교실 호흡기내과) ;
  • 이승룡 (고려대학교 내과학교실 호흡기내과) ;
  • 김제형 (고려대학교 내과학교실 호흡기내과) ;
  • 이상엽 (고려대학교 내과학교실 호흡기내과) ;
  • 신철 (고려대학교 내과학교실 호흡기내과) ;
  • 심재정 (고려대학교 내과학교실 호흡기내과) ;
  • 인광호 (고려대학교 내과학교실 호흡기내과) ;
  • 강경호 (고려대학교 내과학교실 호흡기내과) ;
  • 유세화 (고려대학교 내과학교실 호흡기내과)
  • Received : 2005.04.14
  • Accepted : 2005.07.25
  • Published : 2005.08.30

Abstract

Background : The role of combination therapy of inhaled corticosteroid (ICS) plus long-acting ${\beta}_2-agonist$ (LABA) in asthma is well established, but nor much is known about this treatment in COPD. Recent studies have revealed that combining therapy is associated with fewer acute exacerbations in COPD, but in most of the studies, high-dose combination therapies have been employed. The current study assessed the effect of moderate or high-dose combination therapy of ICS plus LABA on the frequency of acute exacerbations in COPD. Methods : Between January 1, 2001 and August 31, 2004, 46 patients with COPD (moderate, severe, very severe) were enrolled who received either fluticasone/salmeterol (flu/sal) $250{\mu}g/50{\mu}g$ twice a day (group A) or flu/sal $500{\mu}g/50{\mu}g$ twice a day (group B) for more than a year. We divided them into two groups depending on the dosage of ICS plus LABA. Effect of drugs was compared based on the factors such as symptom aggravation, number of admission, and time to first exacerbation during a year after use. Results : Eleven of twenty-six patients in group A (42.3%) experienced acute exacerbation and eleven of twenty patients in group B (55%) experienced acute exacerbation during 1 year. Mean exacerbation rate of Group A was 0.96 and Group B was 1.05. Mean admission rate was 0.15 and 0.30, respectively. There was no statistically significant difference of aggravation rate, number of administration and time to first exacerbation between the two treatment groups. Conclusion : There was no significant difference between moderate and high dose combined inhaler therapy to reduce acute exacerbation in COPD patients (moderate, severe, very severe). Hence, the effective dose of combination therapy needs further study in patients with COPD.

연구배경 : ICS/LABA는 천식에서 효과가 입증되었으나 COPD에서는 덜 알려져 있다. 최근 COPD 환자에서 고용량의 ICS/LABA의 사용시 급성악화를 줄인다고 보고되고 있다. 본 연구는 중등도와 고용량의 ICS/LABA사용시 용량에 차이에 따른 COPD의 급성악화를 비교하였다. 방 법 : 2001년 1월 1일부터 2004년 8월 31일 사이에 고대안암병원에 내원하여 진단된 46명의 중등증 이상의 COPD 환자를 대상으로 하였다. flu/sal $250{\mu}g/50{\mu}g$ 하루 2번 사용한 군(A군)과 flu/sal $500{\mu}g/50{\mu}g$ 하루 2번 사용한 군(B군)으로 나누어 1년 기간 동안 급성악화의 횟수 및 입원 횟수, 처음악화까지 걸린 기간을 분석하였다. 결 과 : A 군 26명중 11명에서 급성악화를 경험하였고, 평균 악화 횟수는 0.96회, 입원횟수는 0.15 회였다. B군 20명중 11명에서 급성 악화를 경험하였고 평균 악화 횟수는 1.05회, 입원횟수는 0.30 회였다. 두 군간에 통계적으로 유의한 차이가 없었고 처음악화까지 걸린 시간도 차이가 없었다. 결 론 : 중등증 이상의 COPD 환자에서 ICS 와 LABA 복합제제를 사용 할 때 고농도와 중등도 용량에서 급성 악화에 미치는 영향은 통계적으로 차이가 없었다. 향후 COPD 에서 ICS/LABA 사용시 효과적인 용량에 대한 연구가 좀 더 필요할 것으로 사료된다.

Keywords

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