Clinical studies of traditional Japanese herbal medicines (Kampo): Need for evidence by the modern scientific methodology

ABSTRACT: Background: Japanese Kampo medicine is a traditional medicine with roots in ancient Chinese medicine. Because traditional physicians had been abolished in Japan, the present mainstream of Kampo treatment is that physicians who learned modern Western medicine prescribe Kampo extract produc...

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Main Author: Ichiro Arai
Format: Article
Language:English
Published: Elsevier 2021-09-01
Series:Integrative Medicine Research
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2213422021000093
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author Ichiro Arai
author_facet Ichiro Arai
author_sort Ichiro Arai
collection DOAJ
description ABSTRACT: Background: Japanese Kampo medicine is a traditional medicine with roots in ancient Chinese medicine. Because traditional physicians had been abolished in Japan, the present mainstream of Kampo treatment is that physicians who learned modern Western medicine prescribe Kampo extract products based on Western medical diagnosis. This situation is different from that in other east Asian countries, and the physicians require scientific clinical evidence. Methods: Clinical studies were searched from literature databases, clinical trial registry sites, and “Evidence Reports of Kampo Treatment (EKAT)” published by the Japan Society for Oriental Medicine. Results: At the approval of Kampo products, scientific clinical evidence was not required because they have a long-period experience as a decoction. However, in the 1990s, Kampo products became a subject for national reevaluation; double-blind and placebo-controlled clinical trials. At the time, a methodological foundation for conducting clinical assessments of Kampo medicines was established. From 2000 onwards, with the evidence-based medicine era, the field of Kampo medicine also saw many randomized controlled trials, and their evidence was collected and published as EKAT. In the 2010s, post-marketing clinical trials of Kampo products also had to be conducted in this environment due to the need for ethical and scientific assurance. Currently, there are numerous clinical trials of Kampo products being conducted with high-grade trial designs. Conclusion: The situation of Kampo clinical studies reflects the unique history and position of Kampo medical system and Kampo products in Japan.
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spelling doaj.art-1f85ed53585745658fed23f4122b79732022-12-21T22:30:43ZengElsevierIntegrative Medicine Research2213-42202021-09-01103100722Clinical studies of traditional Japanese herbal medicines (Kampo): Need for evidence by the modern scientific methodologyIchiro Arai0Corresponding author at: 10281, Komuro, Ina, Kitaadachi, Saitama 362-0806, Japan, Tel: +81-48-721-1155 (ext. 6133), Fax: +81-48-721-7054.; Department of Pharmaceutical Sciences, Nihon Pharmaceutical UniversityABSTRACT: Background: Japanese Kampo medicine is a traditional medicine with roots in ancient Chinese medicine. Because traditional physicians had been abolished in Japan, the present mainstream of Kampo treatment is that physicians who learned modern Western medicine prescribe Kampo extract products based on Western medical diagnosis. This situation is different from that in other east Asian countries, and the physicians require scientific clinical evidence. Methods: Clinical studies were searched from literature databases, clinical trial registry sites, and “Evidence Reports of Kampo Treatment (EKAT)” published by the Japan Society for Oriental Medicine. Results: At the approval of Kampo products, scientific clinical evidence was not required because they have a long-period experience as a decoction. However, in the 1990s, Kampo products became a subject for national reevaluation; double-blind and placebo-controlled clinical trials. At the time, a methodological foundation for conducting clinical assessments of Kampo medicines was established. From 2000 onwards, with the evidence-based medicine era, the field of Kampo medicine also saw many randomized controlled trials, and their evidence was collected and published as EKAT. In the 2010s, post-marketing clinical trials of Kampo products also had to be conducted in this environment due to the need for ethical and scientific assurance. Currently, there are numerous clinical trials of Kampo products being conducted with high-grade trial designs. Conclusion: The situation of Kampo clinical studies reflects the unique history and position of Kampo medical system and Kampo products in Japan.http://www.sciencedirect.com/science/article/pii/S2213422021000093Clinical studyClinical trial registryKampo medicineRandomized controlled trialReevaluation
spellingShingle Ichiro Arai
Clinical studies of traditional Japanese herbal medicines (Kampo): Need for evidence by the modern scientific methodology
Integrative Medicine Research
Clinical study
Clinical trial registry
Kampo medicine
Randomized controlled trial
Reevaluation
title Clinical studies of traditional Japanese herbal medicines (Kampo): Need for evidence by the modern scientific methodology
title_full Clinical studies of traditional Japanese herbal medicines (Kampo): Need for evidence by the modern scientific methodology
title_fullStr Clinical studies of traditional Japanese herbal medicines (Kampo): Need for evidence by the modern scientific methodology
title_full_unstemmed Clinical studies of traditional Japanese herbal medicines (Kampo): Need for evidence by the modern scientific methodology
title_short Clinical studies of traditional Japanese herbal medicines (Kampo): Need for evidence by the modern scientific methodology
title_sort clinical studies of traditional japanese herbal medicines kampo need for evidence by the modern scientific methodology
topic Clinical study
Clinical trial registry
Kampo medicine
Randomized controlled trial
Reevaluation
url http://www.sciencedirect.com/science/article/pii/S2213422021000093
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