U.S. Food and Drug Administration
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Women in Clinical Trials

Research has shown that women respond differently from men to certain drugs, both in terms of the drug's effectiveness and its adverse effects. However, until recently, women of childbearing age did not participate in clinical trials for new drugs because they could become pregnant and might harm their unborn children. As a result, not enough was known about the effects of certain drugs on women.

Today, the FDA is helping manufacturers create better protocols to remove regulatory barriers and include women in clinical trials. The Office of Women's Health and the FDA will continue to evaluate current data to determine future directions through initiatives such as:

  • The development of the Demographic Information and Data Repository to capture data on subgroup participation in clinical trials and data resulting from subgroup analysis
  • The OWH Science Program, which continues to fund projects that fill gaps in the knowledge base related to gender-related issues
  • Pregnancy initiatives that aim to:
    1. revise the pregnancy subsection of a drug label so it adequately imparts all information necessary to prescribe for and counsel a pregnant or lactating patient, and
    2. improve the quality and quantity of data available for the label
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