Clinical trial Recruiting at 1 site Interventional Ages 18 and up

Comparing two types of nerve blocks for pain management in upper abdominal surgery

Official title: A Feasibility Pilot Study Assessing the Effects of External Oblique Intercostal Fascial Plane Block Versus Subcostal TAP Block for Upper Abdominal Surgery: A Randomized, Controlled Trial

Run by The Cleveland Clinic · NCT06409156 · Data updated 2026-11-12

This study is testing which of two types of nerve blocks can help reduce pain better for people recovering from open upper abdominal surgery.

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Quick facts

Study typeInterventional
Ages18 Years and up
SexAll
Enrollment100 (estimated)
SponsorThe Cleveland Clinic
Academic / other
Locations1 site (Cleveland, Ohio)
StatusRecruiting
StartedJune 26, 2024
Main results expectedDecember 31, 2026
Study endsDecember 31, 2026
Registry record updatedMarch 18, 2026
Trial IDNCT06409156 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are adults aged 18-85 with ASA physical status 1-3 scheduled for elective open upper abdominal surgery requiring a supraumbilical incision.

Probably not a fit

Patients with chronic hepatic or kidney disease, pregnant or breastfeeding women, or those undergoing lower abdominal surgeries will not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This clinical trial aims to compare the effectiveness of two different nerve blocks, the external oblique fascial plane (EOIFP) block and the Oblique Subcostal Transversus Abdominis Plane (OSTAP) block, in managing postoperative pain for patients undergoing open upper abdominal surgery. Conducted at the Cleveland Clinic Main Campus, the study will randomly assign participants to receive one of the two blocks, with both patients and outcome assessors blinded to the group assignments. The blocks will be performed under ultrasound guidance, and the study will evaluate pain management outcomes over the postoperative period.

Why it matters

Potential benefit: If successful, this study could lead to improved pain management strategies for patients undergoing upper abdominal surgeries, potentially reducing opioid use and enhancing recovery.

How similar studies have gone: Other studies have shown promising results with similar nerve block techniques, indicating potential for success in this approach.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Written informed consent;
* 18-85 years old;
* ASA Physical Status 1-3
* Scheduled for elective open upper abdominal surgery with supraumbilical incision (gastrectomy, hepatectomy, pancreatectomy, splenectomy, supraumbilical ventral hernia repair).
* Anticipated hospitalization of three nights;
* Expected requirement for parenteral opioids for at least 48 hours for postoperative pain

Exclusion Criteria:

* Hepatic disease, e.g. twice the normal levels of liver enzymes;
* Chronic kidney disease according to GFR (may be stage 3 or worse as defined by a GFR \<60
* Allergic reaction to study medications;
* Women who are pregnant or breastfeeding;
* Nephrectomy or lower abdominal surgeries such as hysterectomy, colorectal surgeries
* Patient refusal

Where it's running

  • Cleveland Clinic Foundation
    Cleveland, Ohio, United States
    Recruiting

Study contacts

  • Principal investigator: Ehab Farag, MD — The Cleveland Clinic
  • Study coordinator: Fabio Rodriguez, MD
  • Email: rodrigf3@ccf.org
  • Phone: 216-444-9950

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.