Non-Clinical Studies of Botanical Medicines as New Drugs-U.S. Regulatory Perspectives
10.3937/kampomed.56.221
- VernacularTitle:新薬としての植物薬の非臨床試験―米国規正法の観点から―
- Author:
Conrad H. CHEN
- Publication Type:Journal Article
- Keywords:
animal study;
botanical medicine;
guidance;
new drugs;
F. D. A;
drug evaluation
- From:Kampo Medicine
2005;56(2):221-230
- CountryJapan
- Language:Japanese
-
Abstract:
To encourage development of new drugs from botanical sources, the U. S Food and Drug Administration (FDA) has published a draft Guidance for Industry: Botanical Drug Products (www.fda.gov/cder/guidance/1221.dft.pdf) in August of 2000.
The Guidance stipulates that for herbal preparations with substantial marketing history, past human experiences may be taken into consideration for safety assessment. In contrast with development of pure chemical drugs, clinical studies on herbal medicines can thus be initialed with less extensive lesting of non-clinical toxicity. However, most of the historical human experlences are not well documentad and often of poor quality data. In such cases, animal toxicity and toxicology studies may still be required for many botanical preparations, especially to support large scale or long term clinical trials. In this presentation, conventional non-clinical requirements for approval of pure chemical drugs will be reviewed briefly and how such requirements may be modified in scale/timing and applied to the development of botanical new drugs will be discussed.
