First, the number of primary documentary sources used is limited because most relevant cases were under investigation or the trial was ongoing; however, data gathered through the semi-structured interviews with key informants helped to provide current, rich, and detailed knowledge.
Undercover Economist, Tim Harford, has written compellingly in his book Adapt, about how various solutions can be found to difficult problems by doing a number of small scale trials investigating different ideas and using the data gathered from the trials to plan more and better trials until the problem has been overcome.
Although this is indeed a frequently used approach to derive robust estimates of efficacy, the data gathered in trials on potential long-term hazards are not routinely subjected to similar pooled analysis.
The purpose of the interim analyses is to use the data gathered during the trial to update the allocation probabilities.
The data gathered in this trial will constitute a "gold mine" for process-outcome studies in psychodynamic psychotherapy.
Although a Bayesian model could be used, we choose to use a non-Bayesian final analysis so that the informative prior distributions are only used to guide the adaptation at interim analyses, and the final analysis is only based on data gathered during the trial.
In the weeks leading up to an emotionally charged F.D.A. hearing this past February on antidepressant safety, doctors learned that the drug industry had not published all the data gathered during pediatric trials of the medications.
Although there is still insufficient data in the ICU setting, the large amount of data gathered by surgical trials should allow extrapolation.
Data gathered from ongoing trials will surely improve the management of mRCC patients, even if it is difficult to define the relevance of each one's individual contribution.
Buse et al recently published interim analyses of two- to three-year data gathered in open-label extension trials following three 30-week double-blind, placebo-controlled trials.
