Randomized trial to improve prescribing safety during pregnancy

Area of Science:

• Pharmacovigilance
• Medication Safety
• Health Informatics

Background:

• Prescribing medications with U.S. Food and Drug Administration (FDA) pregnancy risk categories D or X poses risks to pregnant individuals.
• Effective systems are needed to alert healthcare providers about these high-risk medications during pregnancy.

Purpose of the Study:

• To evaluate the effectiveness of a computerized alert system in reducing the dispensing of FDA pregnancy risk category D or X medications to pregnant patients.
• To assess the impact of pharmacist and physician collaboration in managing medication safety for pregnant women.

Main Methods:

• A randomized trial involving 11,100 women was conducted, linking pharmacy, diagnostic, and laboratory data.
• Participants were assigned to either an intervention group with a computerized alert system or a usual care group.
• The primary outcome measured was the proportion of pregnant women dispensed category D or X medications.

Main Results:

• The intervention group showed a significantly lower proportion of patients dispensed targeted medications (2.9% vs. 5.5%, p < 0.001).
• Fewer total dispensings of unique targeted medications occurred in the intervention group (238 vs. 361, p = 0.03).
• The study was halted due to false-positive alerts from medication misidentification and delayed pregnancy diagnosis information.

Conclusions:

• Integrating information systems with clinical expertise improved prescribing safety for pregnant patients.
• System limitations, including false-positive alerts, hindered the project's success and sustainability.
• Linking clinical, laboratory, and pharmacy data for safety alerts alone is insufficient for long-term project viability.