Drug studies skewed toward study sponsors
Industry-funded research often favors patent-holders, study finds
Pharmaceutical giant Eli Lilly and Co. recently funded five studies that compared its antipsychotic drug Zyprexa with Risperdal, a competing drug made by Janssen. All five showed Zyprexa was superior in treating schizophrenia.
But when Janssen sponsored its own studies comparing the two drugs, Risperdal came out ahead in two out of three.
In fact, when psychiatrist John Davis analyzed every publicly available trial funded by the pharmaceutical industry pitting six new antipsychotic drugs against one another, nine in 10 showed that the best drug was the one made by the company funding the study.