๐Ÿ›๏ธ Verified NIH Record โ€ข Updated 2026-03-26

Ketamine for Post-operative Analgesia in Hemorrhoidectomy (NCT04248205)

Intra-operative Use of Ketamine for Post-Operative Analgesia in Patients Undergoing Hemorrhoidectomy: A Prospective, Randomized Controlled Trial.

๐ŸŸข Recruiting Phase4 ๐Ÿ’Š Investigational Drug / Biologic Sponsor: University of Oklahoma

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

This is a prospective, randomized study of ketamine versus no ketamine in approximately 100 patients undergoing hemorrhoidectomy for Grade III or IV hemorrhoids. The participants will be blinded to which treatment arm they are assigned, because participants will be under anesthesia when the ketamine is administered. The investigators will know whether the participant receives ketamine or not.

Who can join: Review the eligibility criteria below.

Location: University of Oklahoma Health Sciences Center โ€” Oklahoma City, Oklahoma

Age range: 18 Years to 100 Years

๐Ÿงช Interventions in This Study

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)

  • University of Oklahoma Health Sciences Center โ€” Oklahoma City, Oklahoma

๐Ÿ“ž Contact the Study Coordinator

Phone: (405) 271-8001

Email: steven-carter@ouhsc.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 Hemorrhoids 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†—