Rare Kidney Stone Consortium Biobank

NCT ID: NCT02026388

Last Updated: 2025-07-22

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

RECRUITING

Total Enrollment

2000 participants

Study Classification

OBSERVATIONAL

Study Start Date

2013-05-31

Study Completion Date

2030-06-30

Brief Summary

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This study is being done to obtain samples from patients with primary hyperoxaluria, cystinuria, adenine phosphoribosyl transferase (APRT) deficiency, and Dent disease, and from their family members, for use in future research.

Detailed Description

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Biologic samples will be stored in the biobank from well characterized patients with primary hyperoxaluria, cystinuria, APRT deficiency, and Dent disease, and from their family members, for use in future research. This will help to advance our understanding of disease expression and the factors associated with kidney injury in these four diseases with the overall goal of developing new treatments to preserve kidney function and reduce nephrocalcinosis and stone formation.

Conditions

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Primary Hyperoxaluria Dent Disease APRT Deficiency Cystinuria

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

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Primary Hyperoxaluria

Diagnosis of Primary Hyperoxaluria, or a family member of someone with this diagnosis.

No interventions assigned to this group

Dent Disease

Diagnosis of Dent Disease, or a family member of someone with this diagnosis.

No interventions assigned to this group

Cystinuria

Diagnosis of Cystinuria, or a family member of someone with this diagnosis.

No interventions assigned to this group

APRT deficiency

Diagnosis of APRT Deficiency, or a family member of someone with this diagnosis.

No interventions assigned to this group

Eligibility Criteria

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Inclusion Criteria

* Diagnosis of primary hyperoxaluria (PH) meeting one or more of the following criteria:

1. Liver biopsy documenting alanine-glyoxylate aminotransferase (AGT) activity below the normal reference range confirming PH type 1 OR Liver biopsy documenting glyoxylate reductase/hydroxypyruvate reductase (GR/HPR) activity below the normal reference range confirming PH type 2
2. Molecular genetic analysis (DNA testing) confirming mutations known to cause PH type 1, PH type 2, or PH type 3
3. Urinary oxalate excretion of greater than 0.8 mmol/1.73 m2/day (\>70 mg/1.73 m2/day) in the absence of a identifiable causes of secondary hyperoxaluria, including gastrointestinal disease known to cause enteric hyperoxaluria
4. A patient in end stage kidney failure, in whom neither a liver biopsy nor mutational analysis are available must have: (a) A plasma oxalate concentration of greater than 60 umol/L and a kidney biopsy confirming extensive oxalate deposits OR (b) Evidence of systemic oxalosis
5. Participants in the previous protocol "Tissue Bank of Urine, Blood, and Tissue Samples Collected from the Patients with Primary Hyperoxaluria" 'Mayo IRB #' #80-04. They have already consented to bank their samples and that consent will serve to enroll them in this study.
* Diagnosis of Dent disease meeting one or more of the following criteria:

1. Identified mutation of the gene that encodes for chloride exchange transporter 5 (CLCN5)
2. Low molecular weight proteinuria and hypercalciuria
3. Low molecular weight proteinuria and nephrocalcinosis
* Diagnosis of APRT disease meeting one or more of the following criteria:

1. Suspected dihydroxyadeninuria and absent APRT enzyme activity measured in red blood cells (RBCs).
2. Homozygosity, or compound heterozygosity, for known disease-causing APRT mutations.
3. Passage of dihydroxyadenine stones (confirmed with stone analysis).
* Diagnosis of Cystinuria meeting one or more of the following criteria:

1. Stone analysis demonstrating that the stone contains cystine
2. Increased urinary cystine excretion (\>250 mg/gm creatinine)
* Relative of someone with confirmed primary hyperoxaluria, Dent disease, APRT deficiency (also known as dihydroxyadeninuria), or cystinuria

2. Unwilling or unable to provide consent/assent.
Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Mayo Clinic

OTHER

Sponsor Role lead

Responsible Party

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John Lieske

Principal Investigator

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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John C Lieske, M.D.

Role: PRINCIPAL_INVESTIGATOR

Mayo Clinic

Locations

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Mayo Clinic

Rochester, Minnesota, United States

Site Status RECRUITING

Countries

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United States

Central Contacts

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Barb M Seide

Role: CONTACT

507-255-0387

Leah M Knoke

Role: CONTACT

507-293-0467

Facility Contacts

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Barbara M Seide

Role: primary

507-255-0387

Leah Knoke

Role: backup

507-293-0467

Related Links

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http://www.rarekidneystones.org/

Rare Kidney Stone Consortium

Other Identifiers

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11-005413

Identifier Type: -

Identifier Source: org_study_id

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