But without the field trials, it is impossible to know how the crop will grow outside.
But even if one is found effective in large-scale trials, it is unlikely to be marketed for a decade.
All statins are relatively similar, and the company does not need to replicate the huge clinical trials it is already running for the torcetrapib-Lipitor combination, he said.
In most clinical trials it is problematic to recruit enough patients within a reasonable time period.
Unlike drug trials, it is difficult to carry out a controlled, randomised study, he says.
Nevertheless, this parameter is influenced by experimental trials; it is difficult to guarantee an optimal effect on network operation.
Without clinical trials, it is not possible to accurately conclude which osteotomy method yields the best bone regenerate.
When designing multicenter clinical trials, it is important to understand the characteristics of children who have received ventilation in PICUs.
It was noteworthy that, although all the studies claimed to be double-blind trials, it is difficult for patients to achieve a true blindness.
In many clinical trials it is often used to measure the efficacy of an intervention based on the time until occurrence of a particular event.
Since there are ongoing trials, it is presumed that the method would be improved for approved trials to treat any brain disorder.
