CompletedNot Applicable

Influence of Polymorphisms in the ATP6V1 Gene of the V-ATPase on the Development of Incomplete Distal Renal Tubular Acidosis

Switzerland170 participantsStarted 2012-09

Plain-language summary

Purpose 1. To compare the performance of the two currently employed urinary acidifications tests in stone formers, the furosemide/fludrocortisone and ammonium chloride loading test. 2. To study the impact of polymorphisms in the genes ATP6V1B1, ATP6V0A4 and SLC4A1 on urinary acidification in stone formers.

Who can participate

Age range

18 Years

Sex

ALL

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AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion Criteria: * One or more episodes of nephrolithiasis Exclusion Criteria: * Absence of informed consent * All conditions affecting renal acidification * Pregnancy * Nursing

Questions worth asking your doctor

Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.

1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?

Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.

Questions for the trial coordinator

The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.

1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?

A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.

What they're measuring

Capability of urinary acidification

Timeframe: Five to six hours

Trial details

NCT IDNCT01690039

SponsorInsel Gruppe AG, University Hospital Bern

Sponsor typeOTHER

Study typeOBSERVATIONAL

Primary completion2016-12-31

View on ClinicalTrials.gov More Acidosis, Renal Tubular trials