KetamineNCT07138781
Ketamine as an Adjuvant in External Oblique Intercostal Plane Block for Post Thoracotomy Pain
A study testing Ketamine and 29 ml bupivacaine 0.25% + 1 ml saline in people with Ketamine and Adjuvant, run by Tanta University at 1 site in Egypt.
Trial summary
The aim of this study is to evaluate the role of ketamine as an adjuvant in external oblique intercostal plane block for post thoracotomy pain. Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Ketamine, Adjuvant, External Oblique Intercostal Plane Block
- What is being tested?
- Ketamine and 29 ml bupivacaine 0.25% + 1 ml saline
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 50 participants
- Where
- 1 siteEgypt
- Study dates
- 23 Aug 2025to 17 Feb 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 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Age ≥ 18 years.
- Both sexes.
- American Society of Anesthesiology (ASA) physical status I-III.
- Scheduled for open thoracotomy.
Who cannot join
- Patients with neurological or intellectual disability.
- Infection at the injection site.
- Opioid addiction.
- Allergic reaction to local anesthetics.
- Coagulation abnormalities.
- Drug abuse.
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- Pregnancy.
- Severe liver and/or renal failure.
- Severe cardiovascular problems.
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Role of Ketamine as an Adjuvant in External Oblique Intercostal Plane Block for Post Thoracotomy Pain: A Randomized Controlled Trial
The aim of this study is to evaluate the role of ketamine as an adjuvant in external oblique intercostal plane block for post thoracotomy pain.
- Conditions
- Ketamine, Adjuvant, External Oblique Intercostal Plane Block, Thoracotomy, Pain
- Being tested
- Ketamine, 29 ml bupivacaine 0.25% + 1 ml saline
- Medical subject headings
- Pain
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
KetamineDrug
Patients will receive 29 ml bupivacaine 0.25% + 1 ml ketamine (50 mg).
29 ml bupivacaine 0.25% + 1 ml salineDrug
Patients will receive 29 ml of bupivacaine 0.25% + 1 ml of saline.
| Study group | Role | What they receive |
|---|---|---|
| Group K | Experimental | Patients will receive 29 ml bupivacaine 0.25% + 1 ml ketamine (50 mg) as a study group. Receives: Drug: Ketamine |
| Group C | Active comparator | Patients will receive 29 ml bupivacaine 0.25% + 1 ml saline as a control group. Receives: Drug: 29 ml bupivacaine 0.25% + 1 ml saline |
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 will be recorded from end of surgery to first dose of morphine administrated.
Measured: 48 hours postoperatively
Secondary outcomes (6)
Intraoperative fentanyl consumption
Additional fentanyl bolus dosages of 1 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
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: 48 hours postoperatively
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 0, 4, 8, 12, 18, 24, 36 and 48 h postoperatively.
Measured: 48 hours postoperatively
Mean arterial pressure
Mean arterial pressure will be recorded preoperatively, before performing the block, and every 15 min till the end of surgery.
Measured: Till the end of surgery (Up to 2 hours)
Heart rate
Heart rate will be recorded preoperative, before performing of block, and every 15 min till the end of surgery.
Measured: Till the end of surgery (Up to 2 hours)
Incidence of adverse events
Incidence of adverse events such as pneumothorax, local anesthetic systemic toxicity (LAST), bradycardia, hypotension, nausea, vomiting, respiratory depression, or any other complication will be recorded.
Measured: 48 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 Aug 2025
- Study start23 Aug 2025
- Primary completion17 Feb 2026
- Study completion17 Feb 2026
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for KetamineStudies 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
- 50 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
- NCT07138781
- Sponsor's protocol ID
- 36264PR1282/7/25
- Status last verified
- Feb 2026
- First submitted
- 17 Aug 2025
- Last updated
- 27 Feb 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 27 Feb 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Role of Ketamine as an Adjuvant in External Oblique Intercostal Plane Block for Post Thoracotomy Pain: A Randomized Controlled Trial
- ClinicalTrials.gov ID
- NCT07138781
- Acronym / sponsor ID
- 36264PR1282/7/25
- Conditions
- Ketamine, Adjuvant, External Oblique Intercostal Plane Block, Thoracotomy, Pain
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 50 participants (actual)
- Lead sponsor
- Tanta UniversityUniversity, hospital or other
- Study start
- 23 Aug 2025 (actual)
- Primary completion
- 17 Feb 2026 (actual)
- Study completion
- 17 Feb 2026 (actual)
- First posted
- 24 Aug 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.
The aim of this study is to evaluate the role of ketamine as an adjuvant in external oblique intercostal plane block for post thoracotomy pain.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind (participant, outcomes assessor)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Group K | Experimental | Drug: KetaminePatients will receive 29 ml bupivacaine 0.25% + 1 ml ketamine (50 mg) as a study group. |
| Group C | Active comparator | Drug: 29 ml bupivacaine 0.25% + 1 ml salinePatients will receive 29 ml bupivacaine 0.25% + 1 ml saline as a control group. |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (4 listed)
- Age ≥ 18 years.
- Both sexes.
- American Society of Anesthesiology (ASA) physical status I-III.
- Scheduled for open thoracotomy.
Key exclusion criteria (9 listed)
- Patients with neurological or intellectual disability.
- Infection at the injection site.
- Opioid addiction.
- Allergic reaction to local anesthetics.
- Coagulation abnormalities.
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 |
|---|---|---|
| KetaminePatients will receive 29 ml bupivacaine 0.25% + 1 ml ketamine (50 mg). | Drug | Group K |
| 29 ml bupivacaine 0.25% + 1 ml salinePatients will receive 29 ml of bupivacaine 0.25% + 1 ml of saline. | Drug | Group C |
Primary outcome
Time to the 1st rescue analgesia
Time frame: 48 hours postoperatively
Time to the first request for the rescue analgesia will be recorded from end of surgery to first dose of morphine administrated.
6 secondary outcomes
Intraoperative fentanyl consumption
Time frame: Intraoperatively
Total morphine consumption
Time frame: 48 hours postoperatively
Degree of pain
Time frame: 48 hours postoperatively
Mean arterial pressure
Time frame: Till the end of surgery (Up to 2 hours)
Heart rate
Time frame: Till the end of surgery (Up to 2 hours)
Incidence of adverse events
Time frame: 48 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 27 Feb 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.
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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 Ketamine and 29 ml bupivacaine 0.25% + 1 ml saline in people with Ketamine and Adjuvant, 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 9 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 27 Feb 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: 48 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 27 Feb 2026; AzTrials last refreshed its copy on 6 Nov 2026.