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.

Share of global clinical research participants by research phase as of 2017

Percentage of respondents
Phase I/II10%
Phase I17%
Phase II10%
Phase III13%
Phase IV5%
Don't remember45%
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Source

Release date

November 2017

Region

Worldwide

Survey time period

May to July 2017

Number of respondents

2,194 respondents

Special properties

former clinical research participants

Method of interview

Online survey

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Statistics on "Clinical trials"

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