Influence of Sodium Intake in spondyLoarthriTes

The study is looking for people aged 18 to 80 years old, both men and women, who have been diagnosed with axial spondyloarthritis (this includes both those whose condition shows up on X-rays and those where it doesn't) or psoriatic arthritis.

For women, you can join if you have already gone through menopause (meaning no periods for at least two years), have had a procedure to prevent pregnancy (like having your tubes tied), or are using reliable birth control methods (like birth control pills, injections, coils, patches, or using two forms of barrier contraception, like condoms with a diaphragm).

However, some people cannot take part. This includes if you are pregnant, or if you are currently taking certain medications, such as cyclosporine, water tablets (diuretics), or specific blood pressure medicines (angiotensin-converting enzyme inhibitors or angiotensin II receptor antagonists). Also, if you are currently taking or have recently taken (in the last six months) certain specific biologic medications (like secukinumab, ixekizumab, ustekinumab, and others mentioned in the original text) or high doses of steroids (more than 10mg of prednisolone equivalent), you won't be able to join this particular study.

If you decide to take part in this study, you won't be given any new medicines to try. Instead, the study will mainly involve measuring your current salt intake. This could involve keeping a food diary or providing samples for analysis over a period of time, as well as regular assessments to check your disease activity. The study does not mention specific visits or a total duration, but you would likely have a few appointments to provide this information and have your condition assessed by the research team. You'll be asked questions about your diet and your overall health. There will be no follow-up treatment provided as part of this study.