External Oblique and Rectus Abdominis Plane BlockNCT07082387
External Oblique and Rectus Abdominis Plane Block Versus Quadratus Lumborum Block for Postoperative Analgesia in Patients Undergoing Laparoscopic Cholecystectomy
A study testing External oblique and rectus abdominis plane block and Quadratus lumborum block in people with External Oblique and Rectus Abdominis Plane Block and Quadratus Lumborum Block, run by Tanta University at 1 site in Egypt.
Trial summary
This study aims to compare the effects of the external oblique and rectus abdominis plane (EXORA) block and the quadratus lumborum block (QLB) on postoperative analgesia in patients undergoing laparoscopic cholecystectomy (LC). Read more about this study
- Who is it for?
- Ages 18 to 65 years
- Conditions the study is for
- External Oblique and Rectus Abdominis Plane Block, Quadratus Lumborum Block, Postoperative Analgesia
- What is being tested?
- External oblique and rectus abdominis plane block and Quadratus lumborum block
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 80 participants
- Where
- 1 siteEgypt
- Study dates
- 24 Jul 2025to 31 Mar 2026
- Phase
- Interventional
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 65 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Age from 18 to 65 years.
- Both sexes.
- American Society of Anesthesiology (ASA) physical status I-II.
- Undergoing laparoscopic cholecystectomy (LC) under general anesthesia.
Who cannot join
- History of allergies to local anesthetics.
- Opioid dependency.
- Bleeding or coagulation disorders.
- Psychiatric and neurological disorder.
- Local infection at the site of injection.
- Body mass index (BMI) > 35.
- Hypertension.
- Uncontrolled diabetes mellitus.
Trial locations and contacts
1 site in 1 country.
About this study
Official title: External Oblique and Rectus Abdominis Plane (EXORA) Block Versus Quadratus Lumborum Block for Postoperative Analgesia in Patients Undergoing Laparoscopic Cholecystectomy
This study aims to compare the effects of the external oblique and rectus abdominis plane (EXORA) block and the quadratus lumborum block (QLB) on postoperative analgesia in patients undergoing laparoscopic cholecystectomy (LC).
Read the detailed description
Laparoscopic cholecystectomy (LC) is a proven, gold standard surgical procedure for the management of gallbladder stones.
The quadratus lumborum block (QLB) is a regional block that would appear to be similar to the posterior TAP block, although the drug injection area is deeper and more dorsal than the transverse abdominal aponeurosis.
The external oblique and rectus abdominis plane (EXORA) block is an emerging technique providing a sensory block to the anterolateral abdominal wall.
- Conditions
- External Oblique and Rectus Abdominis Plane Block, Quadratus Lumborum Block, Postoperative Analgesia, Laparoscopic Cholecystectomy
- Being tested
- External oblique and rectus abdominis plane block, Quadratus lumborum block
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
External oblique and rectus abdominis plane blockOther
Patients will receive an external oblique and rectus abdominis plane (EXORA) block using 20ml of bupivacaine 0.25%.
Quadratus lumborum blockOther
Patients will receive a quadratus lumborum block (QLB) using 20ml of bupivacaine 0.25%.
| Study group | Role | What they receive |
|---|---|---|
| EXORA group | Experimental | Patients will receive an external oblique and rectus abdominis plane (EXORA) block using 20ml of bupivacaine 0.25%. Receives: Other: External oblique and rectus abdominis plane block |
| QLB group | Experimental | Patients will receive a quadratus lumborum block (QLB) using 20ml of bupivacaine 0.25%. Receives: Other: Quadratus lumborum block |
What is being measured
The primary outcome is the main question the study is designed to answer.
Time to the 1st rescue analgesia
Time to the first request for the rescue analgesia (time from the end of surgery to first dose of morphine administrated).
Measured: 24 hours postoperatively
Secondary outcomes (4)
Total morphine consumption
Rescue analgesia of morphine will be given as 3 mg bolus if the numeric rating scale (NRS) > 3 to be repeated after 30 min if pain persists until the NRS < 4.
Measured: 24 hours postoperatively
Intraoperative fentanyl consumption
Additional fentanyl bolus dosages of 0.5 µg/kg IV will be administered if heart rate or mean arterial blood pressure elevated more than 20% of the baseline (after exclusion of other causes than pain).
Measured: Intraoperatively
Degree of pain
Each patient will be instructed about postoperative pain assessment with the numeric rating scale (NRS) score. NRS (0 represents "no pain" while 10 represents "the worst pain imaginable"). NRS will be assessed at PACU, 2, 4, 6, 8, 12, 18 and 24 h postoperatively.
Measured: 24 hours postoperatively
Incidence of adverse events
Incidence of adverse events such as bradycardia, hypotension, nausea, vomiting, respiratory depression, pruritus, or any other complication.
Measured: 24 hours postoperatively
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted24 Jul 2025
- Study start24 Jul 2025
- Primary completion31 Mar 2026
- Study completion31 Mar 2026
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for External Oblique and Rectus Abdominis Plane BlockStudies of the same condition, open and under way.
- More trials run by Tanta UniversityThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind
- Who is masked
- Participant, Outcomes assessor
- Enrolment
- 80 participants (actual)
Sponsor and investigators
- Lead sponsor
- Tanta University
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Mohammed Said ElSharkawy, Tanta University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07082387
- Sponsor's protocol ID
- 36264PR1261/6/25
- Status last verified
- Apr 2026
- First submitted
- 16 Jul 2025
- Last updated
- 22 Apr 2026
- Results posted
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Yes: The data will be available upon a reasonable request from the corresponding author after the end of study for one year.
Study at a glance
From the registry record, last updated by the sponsor on 22 Apr 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- External Oblique and Rectus Abdominis Plane (EXORA) Block Versus Quadratus Lumborum Block for Postoperative Analgesia in Patients Undergoing Laparoscopic Cholecystectomy
- ClinicalTrials.gov ID
- NCT07082387
- Acronym / sponsor ID
- 36264PR1261/6/25
- Conditions
- External Oblique and Rectus Abdominis Plane Block, Quadratus Lumborum Block, Postoperative Analgesia, Laparoscopic Cholecystectomy
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 80 participants (actual)
- Lead sponsor
- Tanta UniversityUniversity, hospital or other
- Study start
- 24 Jul 2025 (actual)
- Primary completion
- 31 Mar 2026 (actual)
- Study completion
- 31 Mar 2026 (actual)
- First posted
- 24 Jul 2025 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This study aims to compare the effects of the external oblique and rectus abdominis plane (EXORA) block and the quadratus lumborum block (QLB) on postoperative analgesia in patients undergoing laparoscopic cholecystectomy (LC).
Detailed description
Laparoscopic cholecystectomy (LC) is a proven, gold standard surgical procedure for the management of gallbladder stones.
The quadratus lumborum block (QLB) is a regional block that would appear to be similar to the posterior TAP block, although the drug injection area is deeper and more dorsal than the transverse abdominal aponeurosis.
The external oblique and rectus abdominis plane (EXORA) block is an emerging technique providing a sensory block to the anterolateral abdominal wall.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind (participant, outcomes assessor)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| EXORA group | Experimental | Other: External oblique and rectus abdominis plane blockPatients will receive an external oblique and rectus abdominis plane (EXORA) block using 20ml of bupivacaine 0.25%. |
| QLB group | Experimental | Other: Quadratus lumborum blockPatients will receive a quadratus lumborum block (QLB) using 20ml of bupivacaine 0.25%. |
Who may qualify
- Ages
- 18 to 65 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (4 listed)
- Age from 18 to 65 years.
- Both sexes.
- American Society of Anesthesiology (ASA) physical status I-II.
- Undergoing laparoscopic cholecystectomy (LC) under general anesthesia.
Key exclusion criteria (8 listed)
- History of allergies to local anesthetics.
- Opioid dependency.
- Bleeding or coagulation disorders.
- Psychiatric and neurological disorder.
- Local infection at the site of injection.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| External oblique and rectus abdominis plane blockPatients will receive an external oblique and rectus abdominis plane (EXORA) block using 20ml of bupivacaine 0.25%. | Other | EXORA group |
| Quadratus lumborum blockPatients will receive a quadratus lumborum block (QLB) using 20ml of bupivacaine 0.25%. | Other | QLB group |
Primary outcome
Time to the 1st rescue analgesia
Time frame: 24 hours postoperatively
Time to the first request for the rescue analgesia (time from the end of surgery to first dose of morphine administrated).
4 secondary outcomes
Total morphine consumption
Time frame: 24 hours postoperatively
Intraoperative fentanyl consumption
Time frame: Intraoperatively
Degree of pain
Time frame: 24 hours postoperatively
Incidence of adverse events
Time frame: 24 hours postoperatively
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 22 Apr 2026.
- Individual participant dataSharing planned: Yes. The data will be available upon a reasonable request from the corresponding author after the end of study for one year.
Related trials for External Oblique and Rectus Abdominis Plane Block
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Low Versus Standard Volume EXORA Block in Laparoscopic Cholecystectomy
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Comparison Between External Oblique Intercostal Plane Block and Rectus Sheath Block Combined With Transversus Abdominis Plane Block
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Ultrasound Guided External Oblique and Rectus Abdominis Plane Block (EXORA) on Neuroendocrine Stress Response in Adults Undergoing Umbilical Hernia Surgery
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
The record lists no contact. Use the official record to reach the sponsor.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing External oblique and rectus abdominis plane block and Quadratus lumborum block in people with External Oblique and Rectus Abdominis Plane Block and Quadratus Lumborum Block, run by Tanta University at 1 site in Egypt.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 4 inclusion and 8 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 22 Apr 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Egypt. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Time to the 1st rescue analgesia (time frame: 24 hours postoperatively). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 22 Apr 2026.