Comparing Armour Thyroid to synthetic T4 for hypothyroidism
Treatments studied
Part of Hormones & metabolism clinical trials.
This study is testing whether Armour Thyroid (a natural pig-derived thyroid hormone) works as well as synthetic T4 (levothyroxine) for people with hypothyroidism. If you are already on a stable dose of levothyroxine, you may be able to switch to Armour Thyroid and see how it compares.
Summary written for real people, not researchers, by Clin2.
Who can take part
- You have been diagnosed with primary hypothyroidism for at least 1 year.
- You have been taking synthetic T4 (levothyroxine) for at least the last 12 months.
- Your current dose of synthetic T4 is stable and at least 25 mcg per day.
- Your TSH levels have been in the normal range (0.45–4.12) on at least two recent tests.
- You do not have a condition or surgery that affects how your body absorbs thyroid medication.
- You are not allergic to pork products or any ingredients in Armour Thyroid.
Quick eligibility check
Answer a few plain-language questions, based on this study's own requirements, to get a preliminary sense of fit.
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