Understanding how vaginal estrogen therapy helps prevent urinary tract infections in postmenopausal women

Mechanisms of Successful Vaginal Estrogen Prophylaxis for Postmenopausal Women with Recurrent Urinary Tract Infections: Urogenital Microbiota and Host Immune Responses

NIH-funded research Johns Hopkins University · NIH-10900706

This study is looking into why some postmenopausal women find relief from recurring urinary tract infections when using vaginal estrogen therapy, focusing on the good bacteria in their bodies and how estrogen affects their immune system, to help improve treatment options for those dealing with these infections.

Quick facts

Grant typeR01 grant
Study typeNIH-funded research
Funding institutionJohns Hopkins University NIH-funded
Lab location1 site (Baltimore, United States)
Project IDNIH-10900706 on NIH RePORTER

What this research studies

This research investigates why some postmenopausal women benefit from vaginal estrogen therapy (VET) in preventing recurrent urinary tract infections (rUTIs) while others do not. It focuses on two main areas: the role of the urogenital microbiota, particularly the presence of beneficial Lactobacillus species, and the host immune responses influenced by estrogen. By analyzing these factors, the study aims to identify the mechanisms that contribute to the effectiveness of VET, potentially leading to improved treatment strategies for women suffering from rUTIs.

Who could benefit from this research

Good fit: Ideal candidates for this research are postmenopausal women who experience recurrent urinary tract infections and are considering or currently using vaginal estrogen therapy.

Not a fit: Patients who do not have recurrent urinary tract infections or are not postmenopausal may not benefit from this research.

Why it matters

Potential benefit: If successful, this research could lead to more effective prevention strategies for recurrent urinary tract infections in postmenopausal women.

How similar studies have performed: Previous research has shown that vaginal estrogen therapy can reduce the incidence of urinary tract infections, but the specific mechanisms remain under investigation, making this research both relevant and necessary.

Where this research is happening

Baltimore, United States

Researchers

About this research

  1. This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
  2. Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
  3. For full project details, budget, and progress reports, visit the official NIH RePORTER page below.
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.