Clinical trial Recruiting at 1 site Observational Ages 18 to 80

Renal Health in Adults with Inflammatory Bowel Disease and the General Population

Official title: A Multicenter, Prospective, Observational Study Comparing the Prevalence of Renal Dysfunction in Adult Patient With Inflammatory Bowel Disease Between General Population: The NEPHRO-IBD Study.

Run by Państwowy Instytut Medyczny Ministerstwa Spraw Wewnętrznych i Administracji · NCT07593352 · Data updated 2026-11-12

This study tests how common kidney problems are in adults with IBD compared with people without IBD.

More Chronic Kidney Disease trials

Quick facts

Study typeObservational
Ages18 Years to 80 Years
SexAll
Enrollment6000 (estimated)
SponsorPaństwowy Instytut Medyczny Ministerstwa Spraw Wewnętrznych i Administracji
Government
Locations1 site (Warsaw, Warszawa)
StatusRecruiting
StartedNovember 20, 2025
Main results expectedNovember 30, 2026
Study endsDecember 30, 2026
Registry record updatedMay 18, 2026
Trial IDNCT07593352 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adults over 18, including both confirmed IBD patients (Crohn’s or ulcerative colitis) and non-IBD controls willing to participate.

Probably not a fit

Participants without IBD or those not experiencing renal issues may see no direct kidney-related benefit.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This multicenter prospective observational study compares the prevalence of renal dysfunction and kidney-related complications between adults with IBD (Crohn’s disease or ulcerative colitis) and matched controls from the general population. Participants undergo routine labs, urinalysis with albumin-to-creatinine ratio, and kidney/urinary tract ultrasound, with IBD activity measured by standard indices. The study aims to describe how often kidney issues occur in IBD and how they relate to disease activity, potential medications, and other risk factors. Enrollment targets roughly 6,000 participants, including 3,000 with IBD and 3,000 without IBD, across several Polish centers. Results could inform screening and management of renal health in IBD patients.

Why it matters

Potential benefit: If successful, the study could lead to earlier detection and better management of kidney problems in people with IBD.

How similar studies have gone: Previous research suggests an elevated risk of kidney problems in IBD, but robust prospective data are limited, making this study an important step forward.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Age over 18 years
* Confirmed IBD based on the overall clinical picture and endoscopic examination, or no IBD (control group without IBD)
* Consent to participate in the study
* Cognitive abilities sufficient to complete the questionnaires

Exclusion Criteria:

* diabetes
* dysuric symptoms suggestive of urinary tract infections
* in women, menstruation (urinalysis can be performed 3 days before the onset and 3 days after the end of menstruation)
* refusal to participate in all procedures performed in the study
* age under 18 or over 80
* pregnancy
* other serious comorbidities whose presence or exacerbation may cause abnormalities in laboratory tests suggesting kidney disease
* previous surgery whose presence may cause abnormalities in laboratory tests suggesting kidney disease
* extreme physical exertion within 7 days before the test (marathons, half-marathons, triathlons) and intense physical exertion - strength training - within 1 day before the test. \[moderate physical exertion such as walking, swimming, or cycling is not a contraindication\]. • Excessive alcohol consumption 14 days before the study
* Inability to perform necessary tests: e.g., inability to perform an imaging test
* Unavailability of data: if the study is based on registry data, exclusion of individuals for whom there is incomplete data
* Dehydration
* Use of nephrotoxic medications\* within a month before and during the study
* Use of angiotensin inhibitors, sartans, or flozins that were introduced into treatment within \<3 months

  \*Nephrotoxic drugs:
* Nonsteroidal anti-inflammatory drugs (NSAIDs) - occasional use is not contraindicated, but use for ≥ 10 days is an exclusion criterion
* Gold salts
* Penicillamine
* Interferon alpha
* Antituberculosis drugs (rifampicin, ethambutol, isoniazid)
* Pamidronate
* Biseptol
* Antiviral drugs (acyclovir)
* Anticonvulsants (carbamazepine, diazepam, phenobarbital)
* Cyclosporine A, tacrolimus
* Chinese herbs
* Oncology drugs (cisplatin)

Where it's running

  • National Medical Institute of the Ministry of the Interior and Administration, Clinic of Gastroenterology and Internal Diseases
    Warsaw, Warszawa, Poland
    Recruiting

Study contacts

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How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.