From Phase I to Phase IV, it takes an average of 12 to 14 years for a new drug to be placed on the market.1
More than 2.3 million people participate in approximately 80,000 total clinical trials every year throughout the US.2
In the past 20 years, the average number of patients per trial increased from 1,700 to more than 4,000.3
Among other statistics, the 2012 Tufts CSDD study reported that 53% of studies had extended timelines, with one of six studies taking more than twice as long as originally planned.4
Subject recruitment is considered the most costly and time consuming aspect of clinical trials. Almost 50% of trial delays result from patient enrollment problems.5
Around 15-20% of trial sites never manage to enroll a single patient, and more than two thirds of trial sites fail to meet their original enrollment goals for a given trial.6
Research Volunteers
Research Sites
