Patient participation in worldwide clinical research as of 2017, by phase

This statistic depicts the percentage of clinical trials participants by the phase of the clinical trial as of 2017. According to the data, 17 percent of participants were involved in Phase I clinical trials at that time.

本统计数据显示了截至2017年，临床试验参与者按临床试验阶段的分布百分比。根据数据，当时有17%的参与者参与了I期临床试验。