Gut Microbiome and Sex as Risk Factors for Kidney Stones After Bariatric Surgery (NCT04590690)
🩺 Plain-English Summary (8th-Grade Level)
This is a single-center study that aims to better understand how diet and sex affect the risk of kidney stones in people who have had gastric bypass surgery. Subjects will be asked to follow a special (clinic-provided) diet for six days and come to a research clinic for 3 study visits.
Who can join: To join this study, participants generally need to meet the listed inclusion criteria (2 items) and avoid the listed exclusions (4 items).
Location: University of Chicago Medical Center — Chicago, Illinois
📋 "Do I Qualify?" — 1-Minute Self Screener
Instant ChecklistCheck every box below. If you can check all of them, you may meet the study's basic screening requirements (final eligibility is confirmed by the site team).
Usually NOT eligible if any of the following apply:
- Exclusion Criteria:
- Patients with primary renal diseases or renal impairment (eGFR \< 90)
- Patients with known bladder voiding problems
- Patients with 25-vitamine D deficiency, as defined by level \< 25ng/mL
🔍 Extracted verbatim from the official NIH eligibility criteria. Always confirm with the study coordinator.
📍 All Participating Trial Locations (1 Sites)
- University of Chicago Medical Center — Chicago, Illinois
💰 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.