Could ditching gluten ease ankylosing spondylitis?
NCT ID NCT07166874
First seen Jun 26, 2026 · Last updated Jun 26, 2026 · Updated 1 time
Summary
This study looks at whether an 8-week gluten-free diet can reduce gut inflammation and improve symptoms in people with ankylosing spondylitis. Researchers will measure changes in intestinal permeability, disease activity, and quality of life in 60 adults. Participants are randomly assigned to either a gluten-free diet or a placebo diet.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- gluten-free diet
- What this could lead to
- If it works, this could point toward a simple dietary change to help manage symptoms and gut health in ankylosing spondylitis.
- What could go wrong
- This is a small, early-stage trial with only 60 participants. The diet is short-term (8 weeks), and results may not apply to everyone. It's not a cure, and sticking to a gluten-free diet can be challenging.
This is an AI summary of the original study and may miss details. Read our disclaimer.
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 60 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Jan 2025
- Expected to finish
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May 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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18 to 64 years
- 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.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * diagnosis of axial SpA defined by ASAS criteria * Adults (aged 18-64 years) * stable treatment (NSAID and/or DMARD) for at least 3 months * provide written informed consent and submit to the requirements of the study Exclusion Criteria: * Any diet at the time of inclusion or within 3 months prior to inclusion; * have a history of celiac disease; * have a history of Ulcerative Colitis, Crohn's Disease and Irritable Bowel Syndrom * patients with Type 1 and Type 2 Diabetes Mellitus * patients with Hashimoto Thyroiditis * are pregnant, breastfeeding, * patients who have used omega-3 and vitamins (A, C, E) regularly in the last 3 months. * BMI \<18,50 kg/m2 * BMI ≥29,99 kg/m2
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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.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Bakırköy Dr. Sadi Konuk Training and Research hospital
RECRUITINGIstanbul, Turkey (Türkiye)
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Marmara University
ACTIVE_NOT_RECRUITINGIstanbul, Turkey (Türkiye)
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İstanbul Medeniyet University
ACTIVE_NOT_RECRUITINGIstanbul, Turkey (Türkiye)
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İstanbul Sağlık Bilimleri University
ACTIVE_NOT_RECRUITINGIstanbul, Turkey (Türkiye)
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