UW to study drug safety

SEATTLE – Although it is nearly common knowledge that taking illegal drugs while pregnant is a threat to the life of the fetus, much less is known about the impact of prescription drugs on pregnant women.

That is why CARE Northwest at the University of Washington, which gives free telephone advice about the possible effects of drug and chemical exposure during pregnancy, is poised to conduct a study on prescription drugs during pregnancy, thanks to a new $2.8 million grant.

“The bottom line is that many women need to take medications when they’re pregnant,” said Mary Hebert, associate professor of pharmacy and chief investigator for the study. “Physicians … are doing the best they can, but it’s based on very little information.”

The five-year grant is unusual because it’s not for one particular study.

Rather, UW will be one of the nation’s first federally funded research centers looking broadly at fundamental questions surrounding prenatal drug use, including identifying the body’s mechanisms for processing and responding to the drugs, Hebert said.

Eventually, the project will include testing specific drugs in hundreds of pregnant women and tracking the health and development of their children, she said.

The National Institute of Child Health and Human Development gave similar grants to Georgetown University, the University of Pittsburgh and the University of Texas, Hebert said, adding, “They’re trying to develop expertise across the country.”

Scientists have been slow to develop such expertise, partly because testing pregnant women raises liability concerns, she said. Studying the impact of drugs on fetuses also is expensive and time-consuming, said Janine Polifka, co-director of CARE Northwest.

Scientists know that men and women react to drugs differently and that pregnant women react differently from other women. But until a decade or so ago, most drug studies were conducted on men. Even now, women are not included equally, and pregnant women still are excluded.

Meanwhile, pregnant women and their doctors must struggle to decide whether to medicate or not.

Sometimes there’s danger each way – certain drugs may increase the risks of birth defects or miscarriage, but the lack of drugs also may threaten the fetus.