🏛️ Verified NIH Record • Updated 2026-08-25
Influence of Obesity on Oxalate Metabolism and Handling in Calcium Oxalate Stone Formers (NCT04333745)
🔵 Active, Not Recruiting Observational / Diagnostic 📋 Clinical Research Protocol Sponsor: University of Alabama at Birmingham
🩺 Plain-English Summary (8th-Grade Level)
The primary goals of this study are to determine the contribution of dietary oxalate absorption, renal oxalate handling, and endogenous oxalate synthesis to urinary oxalate excretion in normal Body Mass Index (BMI) and obese calcium oxalate kidney stone formers.
Who can join: Review the eligibility criteria below.
Location: University of Alabama at Birmingham — Birmingham, Alabama
Age range: 19 Years to 75 Years
🧪 Interventions in This Study
📋 "Do I Qualify?" — 1-Minute Self Screener
Instant ChecklistFull eligibility criteria are available on the official NIH protocol. View the criteria ↗
📍 All Participating Trial Locations (2 Sites)
- University of Alabama at Birmingham — Birmingham, Alabama
- University of Texas Southwestern Medical Center — Dallas, Texas
💰 Cost, Insurance & Patient Rights
- 100% Free Items: The investigational treatment and protocol-required procedures are supplied at zero cost by the sponsor.
- Routine Patient Care: Under federal law (ACA § 2709) and many state statutes, routine care costs are covered during participation.
- Voluntary Participation: You may withdraw at any time without affecting your standard medical care.
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💡 How to Participate
- Check the checklist above to see if you may qualify.
- Review the official NIH record below to find the coordinating site.
- Ask about the visit schedule, what is covered at no cost, and any travel support.
- Confirm with your own doctor before making a decision.