‘Alarming’ Trend in Schizophrenia Drug Trials
Retired CDER Division of Psychiatric Products director Thomas Laughren says a trend of increasing placebo response in trials of schizophrenia drugs should be “alarming not only to pharmaceutical companies and regulators but also to clinicians, the academic community, and of course patients and their families.” In a commentary on an article in the Journal of Clinical Psychiatry, Laughren says there are several aspects of drug study conduct that need to be explored in general as an approach to improving study outcomes.
He suggests that of the various potential factors to examine, patient selection may be the most important for the placebo response findings revealed in the article showing that the problem is primarily with North American trial sites.
According to Laughren, patient selection for North American sites could be an issue because sites are incentivized to recruit patients, but not for getting the “right” patient. He says that payment is generally for randomized patients and not for the quality of each patient selection. And he says the same is largely true for contract research organizations.
“There is no reason why incentives for improved quality in patient selection couldn’t be included in contracts,” Laughren says. “One would hope that oversight by companies and regulators would help to ensure quality over quantity in this process, but pharmaceutical company staff also face recruitment pressures that may outweigh the incentive to get the right patients. Regulators are too far removed from the actual process to have any meaningful impact.”