Korean Severe Asthma Registry (KoSAR)

What is severe asthma?

  • Severe asthma is often defined as asthma requiring a high level of treatment to prevent it from becoming or remaining uncontrolled.
  • Poor control of severe asthma is associated with frequent exacerbation, high medical costs, and mortality
  • Even with vigorous research to understand severe asthma, neither an effective nor a comprehensive strategy has been determined to diagnose and treat severe asthma in clinical practice.

Korean Severe Asthma Registry (KoSAR)

  • The Korean Working Group on Severe Asthma was established in 2009 by the members of the Korean Academy of Asthma, Allergy and Clinical Immunology (KAAACI), to study and understand severe asthma in order to find better strategy for severe asthma.
  • The Korean Working Group on Severe Asthma is running the Korean Severe Asthma Registry (KoSAR) with collection of clinical data of patients with severe asthma.


  • To define clinical characteristics and phenotypes of severe asthma in Korea in multicenter, prospective observational study design
  • To estimate the burden of severe asthma and estimate treatment status of severe asthma in Korea
  • To develop better strategy for management of severe asthma


Affiliation PI Sub PI
Gachon University Gil Medical Center Sung-Yoon Kang
Kyung Hee University Hospital at Gangdong Jin An
Kangwon National University Hospital Jae-Woo Kwon
Konkuk University Medical Center Kwang-Ha Yoo Youlim Kim
Kyungpook National University Hospital Sujeong Kim
Kyunghee University Hospital Kyoung-Hee Sohn
Korea University Anam Hospital Byung-Keun Kim
Kosin University Gospel Hospital Gil-Soon Choi
Nowon Eulji Medical Center Sang-Hoon Kim
Dong-A University Hospital Young-Hee Nam
Pusan National University Hospital Hye-Kyung Park
Seoul National University Bundang Hospital Yoon-Seok Chang
Samsung Medical Center Byung-Jae Lee Noeul Kang
Seoul National University Hospital Heung-Woo Park Sang-Heon Cho, Hye-Ryun Kang, Suh-Young Lee
Seoul St. Mary’s Hospital (1) Chin-Kook Rhee
Seoul St. Mary’s Hospital (2) Hwa-Young Lee Sook-Young Lee
Asan Medical Center You Sook Cho Woo-Jung Song, Hyouk-Soo Kwon
Chungnam National University Sejong Hospital Sun-Young Yoon
Soonchunhyang University Hospital Bucheon (1) Choon-Sik Park Jong-Sook Park
Soonchunhyang University Hospital Bucheon (2) An-Soo Jang
Ajou University Hospital Young-Soo Lee Hae-Shim Park
Pusan National University Yangsan Hospital Seung-Eun Lee
Yeungnam University Medical Center Hyun-Jung Jin
Ulsan University Hospital Tae-Hoon Lee Seung-Won Ra
Wonju Severance Christian Hospital Ji-Ho Lee
Ewha Womans University Mokdong Hospital Young-Joo Cho
Ewha Womans University Medical Center Min-Hye Kim Ji-Su Shim
Chonnam National University Hospital Young-Il Koh Da-Woon Sim
Chonbuk National University Hospital So Ri Kim
Chung-Ang University Hospital Jae-Woo Jung
Chung-Ang University Gwangmyeong Hospital So-Young Park
Veterans Health Service Medical Center Ha-Kyoung Won
Kyungpook National University Chilgok Hospital Han-Ki Park
Kangdong Sacred Heart Hospital Ga-Young Ban
Hallym University Sacred Heart Hospital Joo-Hee Kim
Hanyang University Guri Hospital Ji Yong Moon
Hanyang University Seoul Hospital Sang-Heon Kim Ho-Joo Yoon, Hyun Lee
Inje University Haeundae Paik Hospital Chan-Sun Park


– Original articles

  1. Kim SH, Moon JY, Lee JH, Ban GY, Kim S, Kim MA, et al. Perceptions of Severe Asthma and Asthma-COPD Overlap Syndrome Among Specialists: A Questionnaire Survey. Allergy Asthma Immunol Res 2018;10:225-235.
  2. Kim MH, Kim SH, Park SY, Ban GY, Kim JH, Jung JW, et al. Characteristics of Adult Severe Refractory Asthma in Korea Analyzed From the Severe Asthma Registry. Allergy Asthma Immunol Res 2019;11:43-54.
  3. Lee H, Kim SH, Kim BK, Lee Y, Lee HY, Ban GY, et al. Characteristics of Specialist-Diagnosed Asthma-COPD Overlap in Severe Asthma: Observations from the Korean Severe Asthma Registry (KoSAR). Allergy 2021;76:223-232.
  4. Kim MA, Park HW, Kim BK, Park SY, Ban GY, Lee JH, et al. Specialist Perception of Severe Asthma in Korea: A Questionnaire Survey. Allergy Asthma Immunol Res 2021;13:507-514.

– Review

  1. Kim BK, Park SY, Ban GY, Kim MA, Lee JH, An J, et al. Evaluation and Management of Difficult-to-Treat and Severe Asthma: An Expert Opinion From the Korean Academy of Asthma, Allergy and Clinical Immunology, the Working Group on Severe Asthma. Allergy Asthma Immunol Res 2020;12:910-933.
  2. Kim SH, Lee H, Park SY, Park SY, Song WJ, Kim JH, et al. The Korean Severe Asthma Registry (KoSAR): real world research in severe asthma. Korean J Intern Med 2022;37:249-260.

For investigators only:

Click below to visit the Severe Asthma Registry Site

스크린샷 2022-08-25 오후 6.55.34