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Heterozygous Individuals for AGXT and Kidney Stones

Heterozygous Individuals for AGXT and Kidney Stones

Status
Not yet recruiting
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04430426
Enrollment
4
Registered
2020-06-12
Start date
2026-07-01
Completion date
2032-08-01
Last updated
2025-07-04

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Kidney Stone

Keywords

kidney stone, oxalate

Brief summary

This study seeks to examine the effects of a heterozygous mutation of the AGXT gene in a stone forming population on endogenous oxalate production. Participants will consume a controlled low-oxalate diet and provide blood and urine samples to measure the amount of oxalate in their bodies. Subjects will then be administered an intravenous (IV) load of glycolate, providing additional blood and urine samples afterwards to measure any increase in oxalate levels.

Interventions

Participants will consume a controlled low oxalate diet for five days.

OTHERGlycolate Administration

Participants will come to the UAB Clinical Research Unit (CRU) and be administered a glycolate load via intravenous (IV) catheter.

Sponsors

University of Alabama at Birmingham
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
OTHER
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* at least 18 years of age * history of calcium oxalate stones * heterozygous mutation of the AGXT gene, as evidenced by results from the Invitae Nephrolithiasis Panel * willingness to comply with a controlled diet for five days

Exclusion criteria

* pregnant individuals * individuals who are currently breast feeding

Design outcomes

Primary

MeasureTime frameDescription
Urinary Oxalate ExcretionBaseline through Day 6Urinary oxalate excretion from urine samples will be measured as mg/day

Contacts

Primary ContactDemond Wiley
kidneystone@uabmc.edu205-934-3671

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026