Gluten-Free diet may ease Hashimoto's symptoms, study finds
NCT ID NCT07060118
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looks at whether a gluten-free diet can improve quality of life for people with Hashimoto's hypothyroidism who still have symptoms like brain fog and fatigue despite standard thyroid medication. About 50 adults with Hashimoto's will follow a gluten-free diet, and researchers will measure changes in their symptoms and well-being. The goal is to find a non-invasive way to reduce autoimmune-related inflammation and improve daily functioning.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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About 50 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Jul 2025
- Expected to finish
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Dec 2026
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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Children (under 18), adults (18 to 64) and older adults (65 and over)
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria 1. Diagnosis of Hashimoto's thyroiditis 2. Self-perception of reduced quality of life since diagnosis as determined by a ThyPRO score greater than or equal to 35 (higher score suggests lower quality-of-life) based on prior studies reporting of average score in individuals with symptomatic hypothyroidism. 3. Hypothyroidism requiring use of thyroid hormone replacement \>6 months prior initiation of study 4. Thyroid hormone levels (TSH, Free T4 and Free T3 as available) within the normal reference range within 3 months of the study initiation 5. Anti-TPO AB greater than or equal to 500 IU/mL and/or Anti-Tg AB greater than or equal to 50 IU/mL at any point in medical history Exclusion Criteria 1. Prior surgical intervention on thyroid 2. Prior Celiac Disease diagnosis or symptoms which are highly suggestive of undiagnosed Celiac Disease (i.e. chronic diarrhea, blood in stool, unintentional weight loss, family history, etc). In the case of the latter, patients will be directed to speak with their physician to consider screening before being considered for enrollment into the study. 3. Pregnancy 4. Use of gluten-free diet within prior 6 months 5. Active malignancy undergoing treatment 6. Any condition which, based on the investigator's medical judgment, would preclude patient ability to complete the study
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Cleveland Clinic
Cleveland, Ohio, 44195, United States
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