Trends of clinical trials from 2017 to 2019 in Korea: an integrated analysis based on the Ministry of Food and Drug Safety (MFDS) and the Clinical Research Information Service (CRIS) registries.

Transl Clin Pharmacol · 2021 · PMC8718355 · PMID 35024359

Europe PMC DOI

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a definite trendno p-value reported

The concentration of clinical trials in urban areas (e.g., Seoul metropolitan area) was a definite trend in Korea.

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an increasing trendno p-value reported

The previous study demonstrated an increasing trend of phase 1 clinical trials and a geographic imbalance in Korea.

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Quoted from the open-access full text in Europe PMC under the licence the publisher applied. The sentence is reproduced exactly as published; the emphasis is ours.