Who is eligible for clinical trial NCT05239403?

Participants must meet protocol criteria for Influenza. Confirm exact inclusion and exclusion requirements with the study coordinator.

Does clinical trial NCT05239403 provide travel or cost reimbursement?

Check with the site coordinator at the participating facility for travel and lodging stipend availability, and for which routine-care costs are covered.

🏛️ Verified NIH Record • Updated 2026-08-10

Association Between Gut Microbiome and Dietary Determinants and Vaccine Response (NCT05239403)

🔵 Active, Not Recruiting Interventional Protocol 📊 Observational Clinical Research Sponsor: M.D. Anderson Cancer Center

🩺 Plain-English Summary (8th-Grade Level)

This study evaluates the association between gut microbiome and dietary determinants and vaccine response. This study aims to learn if diet and the microbes (such as bacteria and viruses) found in your gut affect the body's immune response to the influenza vaccine.

Who can join: To join this study, participants generally need to meet the listed inclusion criteria (5 items) and avoid the listed exclusions (1 items).

Location: M D Anderson Cancer Center — Houston, Texas

📋 "Do I Qualify?" — 1-Minute Self Screener

Instant Checklist

Check 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).

MD Anderson employees and student employees with existing MRN
Must be able to donate blood
Participants must be age 18 or older
Participants must receive the seasonal influenza vaccine at MD Anderson through Employee Health
Participants must consent to gut microbiome profiling, REDCap-based dietary screening questionnaire (Appendix A) and survey (Appendix B), and vaccine immune response testing which requires one stool sample, and two blood draws

Usually NOT eligible if any of the following apply:

Exclusion Criteria: 1\. Participants with a contraindication to the recommended annual influenza vaccine Pregnant women may be included in this study.

🔍 Extracted verbatim from the official NIH eligibility criteria. Always confirm with the study coordinator.

📍 All Participating Trial Locations (1 Sites)

M D Anderson Cancer Center — Houston, 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.

🏛️ View Official NIH Record ↗