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Standardization of the first Korean national reference standard for snake (Gloydius brevicaudus) antivenom

Toxicological Research 2020년 36권 4호 p.407 ~ 413
한기원, 송호진, 최찬웅, 박상미, 강용석, 정기경, 이병화, Takahashi Yoshimasa, Matsumura Takayuki, Yamamoto Akihiko, 김양진, 지승완, 김재옥,
소속 상세정보
한기원 ( Han Ki-Won ) - Ministry of Food and Drug Safety National Institute of Food and Drug Safety Evaluation
송호진 ( Song Ho-Jin ) - Ministry of Food and Drug Safety National Institute of Food and Drug Safety Evaluation
최찬웅 ( Choi Chan-Woong ) - Ministry of Food and Drug Safety National Institute of Food and Drug Safety Evaluation
박상미 ( Park Sang-Mi ) - Ministry of Food and Drug Safety National Institute of Food and Drug Safety Evaluation
강용석 ( Kang Yong-Seok ) - Ministry of Food and Drug Safety National Institute of Food and Drug Safety Evaluation
정기경 ( Jung Ki-Kyung ) - Ministry of Food and Drug Safety National Institute of Food and Drug Safety Evaluation
이병화 ( Lee Byung-Hwa ) - Korea Vaccine Co. Ltd. Quality Control Team
 ( Takahashi Yoshimasa ) - National Institute of Infectious Diseases Department of Immunology
 ( Matsumura Takayuki ) - National Institute of Infectious Diseases Department of Immunology
 ( Yamamoto Akihiko ) - National Institute of Infectious Diseases Division of Biosafety Control and Research
김양진 ( Kim Yang-Jin ) - Sookmyung Women’s University College of Science Department of Statistics
지승완 ( Jee Seung-Wan ) - Ministry of Food and Drug Safety National Institute of Food and Drug Safety Evaluation
김재옥 ( Kim Jae-Ok ) - Ministry of Food and Drug Safety National Institute of Food and Drug Safety Evaluation

Abstract


In 2017, the second national reference standard (NRS) for Gloydius snake venom was established to replace the first NRS for Gloydius snake venom. In connection with the second venom NRS, a candidate for the first NRS for Gloydius snake antivenom was produced in 2017. In this study, the qualification of the candidate was estimated and the potency was determined by a collaborative study. The potency (anti-lethal titer and anti-hemorrhagic titer) of the candidate was determined by measuring the capability of the antivenom to neutralize the lethal and hemorrhagic effects of the second NRS for Gloydius snake venom, which was calibrated against the regional reference standard for Gloydius snake antivenom established in 2006. Two Korean facilities contributed data from 20 independent assays. Subsequently, one foreign national control research laboratories participated in this collaborative study. The general common potency of the anti-lethal and anti-hemorrhagic titers was obtained from the results of a total of 25 tests performed at three facilities. According to the results of the present study, the candidate preparation showed good quality and is judged to be suitable to serve as the first NRS for Gloydius snake antivenom with the following potency: an anti-lethal titer of 3100 unit (U) (95% confidence interval 2991?3276 U) and anti-hemorrhagic titer of 3000 U (95% confidence interval 2849?3159 U). In conclusion, the first NRS for Gloydius snake antivenom was established in this study. This reference standard will be used routinely for quality control of a snake antivenom product by manufacturer in Korea, which also can be used for national quality control, including a national lot-release test of the snake antivenom product.

키워드

National reference standard; Collaborative study; Gloydius snake antivenom; Anti-lethal titer; Anti-hemorrhagic titer

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