Investigating levothyroxine dosing for older adults

Levothyroxine Dosing in Older Individuals

NIH-funded research University of Pennsylvania · NIH-11075264

This study is looking at how the thyroid medication levothyroxine is given to people aged 65 and older to see if the current dosing guidelines, which are based on younger people, are the best fit for older adults, with the goal of improving their health outcomes.

Quick facts

Grant typeR01 grant
Study typeNIH-funded research
Funding institutionUniversity of Pennsylvania NIH-funded
Lab location1 site (Philadelphia, United States)
Project IDNIH-11075264 on NIH RePORTER

What this research studies

This research focuses on how levothyroxine, a medication used to treat hypothyroidism, is dosed in individuals aged 65 and older. It aims to understand the implications of current dosing guidelines, which are based on younger populations, and whether these guidelines are appropriate for older adults. The study will analyze thyroid stimulating hormone (TSH) levels and their relationship to health outcomes in older patients taking levothyroxine. By examining existing data and conducting trials, the research seeks to optimize treatment for this age group.

Who could benefit from this research

Good fit: Ideal candidates for this research are adults aged 65 and older who are currently taking levothyroxine for hypothyroidism.

Not a fit: Patients under the age of 65 or those not taking levothyroxine for hypothyroidism may not benefit from this research.

Why it matters

Potential benefit: If successful, this research could lead to more effective and safer dosing guidelines for older adults taking levothyroxine, improving their overall health and reducing healthcare costs.

How similar studies have performed: Previous studies have indicated that dosing strategies for levothyroxine in younger populations may not be applicable to older adults, suggesting a need for this novel approach.

Where this research is happening

Philadelphia, 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.