Low Salt Diet in Idiopathic Hypercalciuria

NCT ID: NCT01005082

Last Updated: 2009-10-30

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE2/PHASE3

Total Enrollment

210 participants

Study Classification

INTERVENTIONAL

Study Start Date

2005-01-31

Study Completion Date

2008-12-31

Brief Summary

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Randomized clinical trial comparing water therapy plus low-salt diet to water therapy alone in patients affected by idiopathic calcium nephrolithiasis.

Treatment duration: three months Primary end-point: correction of hypercalciuria Main inclusion criteria: calcium stone formers with idiopathic hypercalciuria, with at least one stone expelled and analyzed by infrared spectrophotometry; presence of hypercalciuria (\>300 mg/day in males and \>200 mg/day in females); 18-65 years.

Main exclusion criteria: primary hyperparathyroidism, primary hyperoxaluria, enteric hyperoxaluria, bowel resection, inflammatory bowel disease, renal tubular acidosis, sarcoidosis, sponge kidney, hyperthyroidism, use of hypercalciuric drugs such as Vitamin D, acetazolamide, anti-epileptic drugs

Detailed Description

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Conditions

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Hypercalciuria

Keywords

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Low salt diet, idiopathic hypercalciuria, calcium stone formers Calcium stone formers with idiopathic hypercalciuria

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Low salt diet plus water therapy

Group Type EXPERIMENTAL

Low salt diet

Intervention Type BEHAVIORAL

water therapy alone

Group Type ACTIVE_COMPARATOR

Water therapy alone

Intervention Type BEHAVIORAL

Interventions

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Low salt diet

Intervention Type BEHAVIORAL

Water therapy alone

Intervention Type BEHAVIORAL

Eligibility Criteria

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Inclusion Criteria

* idiopathic calcium stone formers, with at least one stone expelled and analyzed by infrared spectrophotometry; presence of hypercalciuria (\>300 mg/day in males and 20 mg/day in females);
* 18-65 years.

Exclusion Criteria

* primary hyperparathyroidism,
* primary hyperoxaluria,
* enteric hyperoxaluria,
* bowel resection,
* inflammatory bowel disease,
* renal tubular acidosis,
* sarcoidosis, sponge kidney,
* hyperthyroidism,
* use of hypercalciuric drugs such as Vitamin D,
* acetazolamide,
* anti-epileptic drugs
Minimum Eligible Age

18 Years

Maximum Eligible Age

65 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Università Vita-Salute San Raffaele

OTHER

Sponsor Role collaborator

University of Milan

OTHER

Sponsor Role collaborator

Catholic University of the Sacred Heart

OTHER

Sponsor Role collaborator

University of Parma

OTHER

Sponsor Role lead

Responsible Party

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University of Parma

Locations

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University Hospital

Parma, , Italy

Site Status

Countries

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Italy

References

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Borghi L, Schianchi T, Meschi T, Guerra A, Allegri F, Maggiore U, Novarini A. Comparison of two diets for the prevention of recurrent stones in idiopathic hypercalciuria. N Engl J Med. 2002 Jan 10;346(2):77-84. doi: 10.1056/NEJMoa010369.

Reference Type BACKGROUND
PMID: 11784873 (View on PubMed)

Nouvenne A, Meschi T, Prati B, Guerra A, Allegri F, Vezzoli G, Soldati L, Gambaro G, Maggiore U, Borghi L. Effects of a low-salt diet on idiopathic hypercalciuria in calcium-oxalate stone formers: a 3-mo randomized controlled trial. Am J Clin Nutr. 2010 Mar;91(3):565-70. doi: 10.3945/ajcn.2009.28614. Epub 2009 Dec 30.

Reference Type DERIVED
PMID: 20042524 (View on PubMed)

Other Identifiers

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PRIN2002062925

Identifier Type: -

Identifier Source: org_study_id