Monitoring kidney function in cystic fibrosis patients during a treatment pause
Official title: Cystic Fibrosis in the Kidney: Monitoring the Effectiveness of Elexacaftor/tezacaftor/ivacaftor in Urine After a Short Pause of Therapy
Run by University of Aarhus · NCT05818319 · Data updated 2026-11-12
This study is testing how a short break from a specific cystic fibrosis treatment affects kidney function in adults with the condition.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | 18 Years and up |
| Sex | All |
| Enrollment | 30 (estimated) |
| Sponsor | University of Aarhus Academic / other |
| Locations | 1 site (Aarhus C, Central Jutland) |
| Status | Recruiting |
| Started | June 1, 2023 |
| Main results expected | December 2025 |
| Study ends | December 2025 |
| Registry record updated | February 19, 2025 |
| Trial ID | NCT05818319 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates are adults over 17 years with cystic fibrosis and normal kidney function.
✕Probably not a fit
Patients with critical acute illness or severe lung disease may not benefit from this study.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This study evaluates the impact of a short pause in treatment with the CFTR modulator combination therapy Elexacaftor/tezacaftor/ivacaftor on urine bicarbonate excretion in adult cystic fibrosis patients. The researchers aim to determine if changes in urine HCO3- excretion can serve as a biomarker for CFTR function and the effectiveness of the therapy. Participants will undergo a treatment pause of varying durations to assess these changes. The study focuses on understanding the relationship between CFTR dysfunction and kidney function in cystic fibrosis.
Why it matters
Potential benefit: If successful, this study could provide insights into kidney function in cystic fibrosis patients and improve treatment strategies.
How similar studies have gone: While the specific approach of monitoring urine HCO3- excretion in this context may be novel, related studies on CFTR modulation have shown promising results.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Adult (age \>17 years) CF patients. * Normal kidney function estimated by eGFR\>90. * Adults capable of understanding and voluntarily consenting. Exclusion Criteria: * Critical acute illness. * Severe lung disease (ppFEV1\<40%). * Adults not capable of understanding and voluntarily consenting.
Where it's running
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Department of Infectious Diseases, Aarhus University Hospital
Aarhus C, Central Jutland, Denmark Recruiting
Study contacts
- Principal investigator: Jens G. Leipziger — Department of Biomedicine, Aarhus University, Denmark
- Study coordinator: Amalie Q. Rousing, BM
- Email: arousing@biomed.au.dk
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.