Better Ways to Treat Hypothyroidism
Official title: New Approaches for the treatment of Hypothyroidism
Funded at University of Connecticut Sch of Med/dnt · NIH-11158865 · Data updated 2026-11-12
This project looks for the best way to combine two thyroid hormones, LT4 and LT3, to help people with hypothyroidism feel better and reduce heart risks.
Quick facts
| Grant type | R01 grant |
|---|---|
| Study type | NIH-funded research |
| Funding institution | University of Connecticut Sch of Med/dnt NIH-funded |
| Lab location | 1 site (Farmington, United States) |
| Project start | August 1, 2024 |
| Project end | June 30, 2027 |
| Funding year | 2025 |
| Award (this year) | $333,000 |
| NIH project number | 5R01DK140455-02 |
| Project ID | NIH-11158865 on NIH RePORTER |
Who could benefit from this research
✓Could help
People with hypothyroidism who are currently treated with levothyroxine but still experience symptoms or have cardiovascular risks might be ideal candidates.
✕Less likely to help
Patients whose hypothyroidism is well-managed with current levothyroxine treatment and who do not experience ongoing symptoms or cardiovascular concerns may not see additional benefit from this specific approach.
What this research studies
Many people with hypothyroidism take levothyroxine (LT4), but some still experience heart-related risks and a lower quality of life, possibly because their bodies miss the T3 hormone normally made by the thyroid. While some past studies have explored adding T3 to LT4, the results have been mixed, partly due to concerns about T3's short lifespan in the body and potential heart side effects. This project aims to discover the safest and most effective dose and timing for T3 when combined with LT4. The goal is to establish a clear treatment plan that can be used in larger future studies.
Why it matters
Potential benefit: If successful, this could lead to a new, more effective, and safer treatment option for people with hypothyroidism, potentially improving their quality of life and reducing cardiovascular risks.
How similar studies have gone: While some previous clinical trials with T3-containing therapies have shown promise, a systematic assessment of optimal dosing and frequency for combination therapy is still needed.
Where this research is happening
-
University of Connecticut Sch of Med/dnt
Farmington, United States Active
Researchers
- Principal investigator: Celi, Francesco S — University of Connecticut Sch of Med/dnt
- Study coordinator: Celi, Francesco S
Related research
Other NIH-funded projects on the same topics.
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Discontinuing low-dose levothyroxine in older adults with subclinical hypothyroidism
This study tests whether stopping low-dose levothyroxine in people 65 and older with subclinical hypothyroidism is safe and helps their well-being.
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New approaches to treating hypothyroidism with LT4/LT3 therapy
A clinical study aims to find safer, more effective LT4/LT3 treatment regimens for adults with hypothyroidism to improve symptoms and heart health.
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MPower Hub: a web program to help adults manage type 2 diabetes with glucose and activity data
This project helps adults with type 2 diabetes use continuous glucose and activity tracker data alongside goal-setting tools to improve daily diabetes self-care.
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Investigating the effectiveness of combined T4 and T3 therapy for hypothyroidism
This study is looking into how a combination of two thyroid hormones, LT4 and LT3, might help people with hypothyroidism feel better, especially since some still have symptoms even while taking the usual treatment.
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Improving care for patients with hypothyroidism using real-world data
This study is looking at how well people with hypothyroidism are treated over time and how their thyroid hormone levels affect heart health, so if you're living with this condition, your health data could help us find better ways to manage it!
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New treatments for hypothyroidism
This study is looking at new ways to treat hypothyroidism by testing a combination of two thyroid hormones to see how they work together, and it's for people who want better options for managing their condition.
About this research
- This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
- Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
- For full project details, budget, and progress reports, visit the official NIH RePORTER page.