People with axial spondyloarthritis (axSpA) often have intestinal inflammation and intestinal microbiome dysbiosis, with some similarities to Crohn's-like inflammatory bowel disease (IBD) gut inflammation. However, research has not addressed whether Partial Enteral Nutrition (PEN), a diet formed of a liquid formula and some solid whole foods, which is effective at inducing remission in IBD, may influence the dysbiotic microbiome and inflamed, hyperpermeable intestine of axSpA patients, and whether these changes may be accompanied by alterations in systemic markers of inflammation. Thus, there is a need to determine the effects of PEN on these aspects in axSpA patients.
In this study, the investigators intend to trial a 2-week course (with optional additional 2-week extension) of a PEN diet in people with active axSpA disease. A group of healthy volunteers following the same diet will act as a control.
Diagnosis of axSpA (fulfilling the ASAS criteria)
Active disease (BASDAI score ≥4) on day of study visit
Stable on treatment [defined as (1) no major change to therapy (change in treatment type) in the preceding 3 months AND (2) no minor change in therapy (adjustment of treatment dosage) in the preceding 1 month]
Age ≥ 16 years
None
Single group
Partial enteral nutrition
Dietary supplement70% caloric intake from enteral nutrition formula and 30% caloric intake from a limited range of solid foods
Change in faecal butyrate at 2 weeks on a PEN diet
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NHS Greater Glasgow and Clyde
Lead sponsor
University of Glasgow
Collaborator
