Many of today's standard treatments for disease are based on earlier clinical trials.

None of the earlier trials, though, required such a large jury pool.

In some cases, experimental medicine can raise the cost of early trials.

The doctors selected the professor for the early trials, in part because her problem is complex.

The government mounts a case against the three officers, using several of the same witnesses from the earlier trial.

Four other patients who were given the drug during earlier trials also committed suicide, the company said.

So toxic was the drug considered in early trials that it appeared to be lost.

The drug had shown better results in an earlier trial.

The jury is not meant to hear about the earlier trials.

The two current defendants were fugitives during the earlier trial.