Microneedle patch to deliver trospium for overactive bladder

Microneedle delivery of Trospium Chloride optimized for improved tolerance and patient outcomes in overactive bladder disease

NIH-funded research Tsrl, INC. · NIH-11180658

A tiny microneedle patch that delivers the bladder medicine trospium aims to reduce side effects and improve symptom control for people with overactive bladder.

Quick facts

Grant typeSbir 2 grant
Study typeNIH-funded research
Funding institutionTsrl, INC. NIH-funded
Lab location1 site (Ann Arbor, United States)
Project IDNIH-11180658 on NIH RePORTER

What this research studies

You would wear a small patch made of microscopic needles that puts trospium through the skin so drug levels stay steady instead of spiking. The team is optimizing the patch formulation to lower common anticholinergic side effects like dry mouth and cognitive effects while avoiding the skin irritation seen with older adhesive patches. The work includes lab development and testing of how the patch releases drug and how well it is tolerated. If successful, the project will move the patch toward human tolerability and efficacy testing.

Who could benefit from this research

Good fit: Adults with overactive bladder who take or have trouble tolerating oral anticholinergic medicines, especially older adults concerned about cognitive or systemic side effects.

Not a fit: People whose bladder symptoms are controlled by non-anticholinergic treatments, who are allergic to patch components, or who need immediate high-dose oral therapy may not benefit.

Why it matters

Potential benefit: Could lower systemic side effects and improve daily bladder symptom control and medication adherence.

How similar studies have performed: Transdermal oxybutynin patches reduced some systemic side effects but caused skin irritation, while microneedle delivery is a newer approach showing promise for steady dosing but remains less tested for trospium.

Where this research is happening

Ann Arbor, 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.
Conditions Bladder Diseases
Last reviewed 2026-06-15 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.