Clinical Trial Start Dates for Cancer Drugs (image) Boston Children's Hospital Share Print E-Mail Caption The median time lag between a cancer drug's first clinical trial in adults and its first clinical trial in children was 6.5 years (range, 0 to 27.7 years). Each line on this chart represents a different drug. Credit Patrick Bibbins / Boston Children's Hospital Usage Restrictions please credit as indicated Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.