๐Ÿ›๏ธ Verified NIH Record โ€ข Updated 2026-08-06

Ommaya Reservoir Placement for Brain Tumor Biomarker Access (NCT04692337)

๐ŸŸข Recruiting Observational / Diagnostic ๐Ÿฉบ Clinical Procedure Protocol Sponsor: Mayo Clinic

๐Ÿฉบ Plain-English Summary (8th-Grade Level)

The purpose of this study is to determine the safety and feasibility of intra-operative Ommaya Reservoir placement during a clinically indicated operation for brain tumor. The Ommaya reservoir will facilitate a longitudinal access to cerebrospinal fluid (CSF) for analysis of potential biomarkers for brain tumor research and individualized monitoring.

Who can join: Review the eligibility criteria below.

Location: Mayo Clinic in Rochester โ€” Rochester, Minnesota

Age range: 18 Years

๐Ÿงช Interventions in This Study

  • Intra-operative Ommaya Reservoir placement (PROCEDURE)

๐Ÿ“‹ "Do I Qualify?" โ€” 1-Minute Self Screener

Instant Checklist

Full eligibility criteria are available on the official NIH protocol. View the criteria โ†—

๐Ÿ“ All Participating Trial Locations (1 Sites)

  • Mayo Clinic in Rochester โ€” Rochester, Minnesota

๐Ÿ“ž Contact the Study Coordinator

Phone: (507) 538-6342

Email: sharif.essa@mayo.edu

Coordinator details come directly from the registered NIH protocol. Confirm the study is still recruiting before traveling.

๐Ÿ’ฐ 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 ยง 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.

Explore by condition: All Brain Tumor clinical trials

๐Ÿ’ก How to Participate

  1. Check the checklist above to see if you may qualify.
  2. Contact the study coordinator using the phone/email above.
  3. Ask about the visit schedule, what is covered at no cost, and any travel support.
  4. Confirm with your own doctor before making a decision.
๐Ÿ›๏ธ View Official NIH Record โ†—