Colo-rectal CancerNCT05709899
Comparison of Ultrasound-guided Erector Spinae Plane Block and Transmuscular Quadratus Lumborum Block
A study testing nerve blocks in people with Colo-rectal Cancer, run by Assiut University.
Trial summary
The objective of this study is to compare the postoperative analgesic effect of bupivacaine injection via ultrasound-guided erector spinae block versus transmuscular quadratus lumborum block in patients undergoing abdominal cancer surgery Read more about this study
- Who is it for?
- Ages 18 to 70 yearsHealthy volunteers can take part
- Conditions the study is for
- Colo-rectal Cancer
- What is being tested?
- nerve blocks
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 44 participants
- Where
- No sites listed yet
- Study dates
- 30 Aug 2023to 31 Dec 2025
- 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 70 years
- All sexes
- Healthy volunteers accepted
- Adult, Older adult
Who may be able to join
- Patients subjected to abdominal cancer surgery.
- The enrolled age will be from 18 years to 70 years.
- ASA I-II and NYHA I-II.
Who cannot join
- ASA physical status >II, and NYHA >II.
- Patient refusal.
- body mass index >40 kg/m2.
- preoperative opioid consumption.
- a local infection at the incision site.
- a history of hematological disorders or coagulation abnormality.
Show all 11Show fewer
- previous abdominal surgeries, severe hepatic or renal impairment
- Anomalies of vertebral column.
- Pregnant women.
- Hypersensitivity to any of used drugs.
- chronic pain.
Trial locations and contacts
No sites are listed yet.
About this study
Official title: Comparison of Ultrasound-guided Erector Spinae Plane Block and Transmuscular Quadratus Lumborum Block in Abdominal Cancer Surgeries.
The objective of this study is to compare the postoperative analgesic effect of bupivacaine injection via ultrasound-guided erector spinae block versus transmuscular quadratus lumborum block in patients undergoing abdominal cancer surgery
Read the detailed description
Surgical trauma activates numerous receptors leading to severe postoperative pain. Therefore, effective pain management is a priority of care and a patient right .
Postoperative pain may cause tachycardia, hypertension, increased cardiac work, nausea, vomiting, ileus. Also if it is inadequately managed may lead to detrimental Cardiovascular effects, pulmonary dysfunction, immune system, neuro-endocrine and metabolic effects, gastrointestinal, urinary dysfunction, coagulation system , cognitive dysfunction and also have psychological, economic and social adverse effects Good postoperative analgesia can prevent morbidity associated with abdominal surgeries by allowing pain-free, early ambulation and decreasing the risks of long hospital stay, thromboembolism, and other poor outcomes.
Adequate pain treatment is an important component of modern perioperative care and essential for a fast recovery. Choosing the optimal analgesic modality remains a topic of debate especially in major abdominal surgeries.
Various techniques have been tried to replicate the analgesic efficacy of TEA. They include transversus abdominis plane analgesia (TAP), rectus sheath analgesia (RS), wound infusion analgesia (WI) and transmuscular quadratus lumborum (TQL) analgesia.
However each of these techniques has specific limitations that prevent them from being the analgesic technique of choice for all open abdominal surgeries.
The ultrasound (US)-guided erector spinae plane block (ESPB) was initially described by Forero et al.It as a relatively new technique, originally described to manage thoracic pain when performed at the T5 vertebra level, but it has also been successfully used for abdominal analgesia when performed at T7 level.
ESPB gained wide attention as it is a faster procedure that carries a lower risk of hypotension, can be used in patients with coagulopathy, easy to perform, and requires less training.
ESPB provides extensive, potent unilateral analgesia, performed by local anesthetic injection in the plane between the erector spinae muscle and the TP. The local anesthetic diffuses into the paravertebral space through spaces between adjacent vertebrae and blocks both the dorsal and ventral rami of the thoracic spinal nerves.
Bilateral ESPB performed at low thoracic levels provides satisfactory analgesia for abdominal surgeries in case reports and series describing abdominal exploration, cesarean section, ventral hernia repair, and abdominoplasty.
As LA widely spreads cranially and caudally when ESPB is performed, we think that ESPB can effectively be used as an analgesic method for abdominal surgeries.
The ultrasound-guided (USG) quadratus lumborum block QLB was first described by Rafael Blanco in a presentation at ESRA 2007 at the XXVI Annual ESRA Congress in Valencia, Spain. Blanco described a potential space posterior to the abdominal wall muscles and lateral to the quadratus lumborum muscle (QL) where Local anesthetics (LA) can be injected. This technique provides analgesia after abdominal surgeries due to spread of LA from its lumbar deposition cranially into the thoracic paravertebral space (TPVS) where lateral and anterior cutaneous branches from Th7 to L1 nerves can be blocked. This was proved later by Carney et al. who found traces of contrast agent in the TPVS following the block.
Quadratus lumborum block (QLB) under ultrasound has been one of the interfascial plane blocks being popularized in regional anesthesia over the last few years given the vast number of indications in a variety of abdomino-pelvic surgeries in pediatrics and adults. In clinical studies, it also has been shown to have opioid sparing effects and prolonged post-operative analgesia than more conventional procedures like TAP blocks.
Several approaches have been described for QLB. Lateral QLB (or QLB-1) where local anesthetic is injected at the anterolateral border of the QL muscle. Posterior QLB (or QLB-2) where LA is injected at the junction of QL muscle with the transversalis fascia., Another novel approach is the transmuscular QLB (or QLB-3), where the needle is advanced through the QL muscle, penetrating the ventral proper fascia of the QL muscle and LA is finally injected between the QL muscle and Psoas Major (PM) muscle. It is thought that this approach (QLB-3) does not result in redundant antero-lateral spread of the LA.
- Conditions
- Colo-rectal Cancer
- Being tested
- nerve blocks
- Medical subject headings
- Colonic Neoplasms
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
nerve blocksOther
Comparison of ultrasound-guided erector spinae plane block and transmuscular quadratus lumborum block for postoperative analgesia in abdominal cancer surgeries.
| Study group | Role | What they receive |
|---|---|---|
| Group I : Bilateral erector spinae plane block at L1 | Other | Ultrasound (US) will be used to identify the level of L1 after skin sterilization with the patient on the lateral position. A high frequency linear-array US transducer covered in a sterile sleeve will be placed in a longitudinal parasagittal orientation 3 cm lateral to the midline to identify the trapezius above, the rhomboid major in the middle, and the erector-spinae muscle on the bottom, and the transverse Processes with shimmering pleura in between. 2-3 ml of 2% lidocaine "depocaine HCL" will be infiltrated.16-G, 8-cm Tuohy needle will be then introduced medially in the plane of the US beam and directed towards the transverse process. Once the needle is underneath the anterior fascia of the erector spinae muscle. 20 ml of bupivacaine 0.25% "sunnypivacaine" will be injected in this potential space over five minutes. The injectate will be observed spreading underneath the ES muscle lifting the muscle of the transverse process. This will be repeated on the opposite side. Receives: Other: nerve blocks |
| Group II : Transmuscular quadratus lumborum block at L1 | Other | Patient will be positioned in left lateral to obtain appropriate view of QL. Aseptic precautions will be taken by wearing sterile gown and sterile drapes. By using Ultrasound MacroMaxx™ with linear probe (HFL38_10-5 MHz) covered with sterile plastic sheath SiteRite placed in the anterior axillary line to visualize the typical triple abdominal layers. Then, the probe will be placed in the midaxillary line and at this juncture the layers of abdominal layers will start to taper. When the probe will be placed in the posterior axillary line as per the posterior approach, sonoanatomy will show first the transversus abdominis disappearing then the internal oblique and external oblique forming aponeurosis and appearance of QL noticed. At the junction of the tapered ends of abdominal muscles and QL, a 21 g 100 mm SonoPlexStimu cannula needle will be inserted in plane. Under ultrasound guidance, in that space 20 mL of 0.25% bupivacaine "sunnypivacaine"will be injected separating the fascia. Receives: Other: nerve blocks |
What is being measured
The primary outcome is the main question the study is designed to answer.
postoperative analgesia
to assess pain intensity at rest and during pain-provoking movements (deep breathing, coughing, mobilization) measured by VAS pain score (a visual analog scale scored from 0 to 10 where 0 = no pain and 10 = the worst pain imaginable) during the first 48 hours postoperatively.
Measured: First 48 hours after surgery.
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted2 Feb 2023
- Study start30 Aug 2023 (estimated)
- Primary completion30 Nov 2025 (estimated)
- Study completion31 Dec 2025 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (9)Papers the sponsor has linked to this study.
- Other trials for Colo-rectal CancerStudies of the same condition, open and under way.
- More trials run by Assiut 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
- Supportive care
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Enrolment
- 44 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Assiut University
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Rana Ahmed Hamed Mohamed, Assiut University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT05709899
- Sponsor's protocol ID
- postoperative analgesia
- Status last verified
- Jun 2023
- First submitted
- 27 Oct 2022
- Last updated
- 27 Jun 2023
- Results posted
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
Publications
Azari L, Santoso JT, Osborne SE. Optimal pain management in total abdominal hysterectomy. Obstet Gynecol Surv. 2013 Mar;68(3):215-27. doi: 10.1097/OGX.0b013e31827f5119.
PubMed 23945838Liu SS, Richman JM, Thirlby RC, Wu CL. Efficacy of continuous wound catheters delivering local anesthetic for postoperative analgesia: a quantitative and qualitative systematic review of randomized controlled trials. J Am Coll Surg. 2006 Dec;203(6):914-32. doi: 10.1016/j.jamcollsurg.2006.08.007. Epub 2006 Oct 25. No abstract available.
PubMed 17116561Restrepo-Garces CE, Chin KJ, Suarez P, Diaz A. Bilateral Continuous Erector Spinae Plane Block Contributes to Effective Postoperative Analgesia After Major Open Abdominal Surgery: A Case Report. A A Case Rep. 2017 Dec 1;9(11):319-321. doi: 10.1213/XAA.0000000000000605.
PubMed 28727597Forero M, Adhikary SD, Lopez H, Tsui C, Chin KJ. The Erector Spinae Plane Block: A Novel Analgesic Technique in Thoracic Neuropathic Pain. Reg Anesth Pain Med. 2016 Sep-Oct;41(5):621-7. doi: 10.1097/AAP.0000000000000451.
PubMed 27501016Ueshima H, Otake H. Similarities Between the Retrolaminar and Erector Spinae Plane Blocks. Reg Anesth Pain Med. 2017 Jan/Feb;42(1):123-124. doi: 10.1097/AAP.0000000000000526. No abstract available.
PubMed 27997492Chin KJ, Adhikary S, Sarwani N, Forero M. The analgesic efficacy of pre-operative bilateral erector spinae plane (ESP) blocks in patients having ventral hernia repair. Anaesthesia. 2017 Apr;72(4):452-460. doi: 10.1111/anae.13814. Epub 2017 Feb 11.
PubMed 28188621Borglum J, Jensen K, Christensen AF, Hoegberg LC, Johansen SS, Lonnqvist PA, Jansen T. Distribution patterns, dermatomal anesthesia, and ropivacaine serum concentrations after bilateral dual transversus abdominis plane block. Reg Anesth Pain Med. 2012 May-Jun;37(3):294-301. doi: 10.1097/AAP.0b013e31824c20a9.
PubMed 22476239Carney J, Finnerty O, Rauf J, Bergin D, Laffey JG, Mc Donnell JG. Studies on the spread of local anaesthetic solution in transversus abdominis plane blocks. Anaesthesia. 2011 Nov;66(11):1023-30. doi: 10.1111/j.1365-2044.2011.06855.x. Epub 2011 Aug 18.
PubMed 21851346Yamak Altinpulluk E, Garcia Simon D, Fajardo-Perez M. Erector spinae plane block for analgesia after lower segment caesarean section: Case report. Rev Esp Anestesiol Reanim (Engl Ed). 2018 May;65(5):284-286. doi: 10.1016/j.redar.2017.11.006. Epub 2018 Jan 17. English, Spanish.
PubMed 29352577
Study at a glance
From the registry record, last updated by the sponsor on 27 Jun 2023. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Comparison of Ultrasound-guided Erector Spinae Plane Block and Transmuscular Quadratus Lumborum Block in Abdominal Cancer Surgeries.
- ClinicalTrials.gov ID
- NCT05709899
- Acronym / sponsor ID
- postoperative analgesia
- Conditions
- Colo-rectal Cancer
- Study type
- Interventional
- Recruitment status
- Unknown status
- Enrolment
- 44 participants (estimated)
- Lead sponsor
- Assiut UniversityUniversity, hospital or other
- Study start
- 30 Aug 2023 (estimated)
- Primary completion
- 30 Nov 2025 (estimated)
- Study completion
- 31 Dec 2025 (estimated)
- First posted
- 2 Feb 2023 (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 objective of this study is to compare the postoperative analgesic effect of bupivacaine injection via ultrasound-guided erector spinae block versus transmuscular quadratus lumborum block in patients undergoing abdominal cancer surgery
Detailed description
Surgical trauma activates numerous receptors leading to severe postoperative pain. Therefore, effective pain management is a priority of care and a patient right .
Postoperative pain may cause tachycardia, hypertension, increased cardiac work, nausea, vomiting, ileus. Also if it is inadequately managed may lead to detrimental Cardiovascular effects, pulmonary dysfunction, immune system, neuro-endocrine and metabolic effects, gastrointestinal, urinary dysfunction, coagulation system , cognitive dysfunction and also have psychological, economic and social adverse effects Good postoperative analgesia can prevent morbidity associated with abdominal surgeries by allowing pain-free, early ambulation and decreasing the risks of long hospital stay, thromboembolism, and other poor outcomes.
Adequate pain treatment is an important component of modern perioperative care and essential for a fast recovery. Choosing the optimal analgesic modality remains a topic of debate especially in major abdominal surgeries.
Various techniques have been tried to replicate the analgesic efficacy of TEA. They include transversus abdominis plane analgesia (TAP), rectus sheath analgesia (RS), wound infusion analgesia (WI) and transmuscular quadratus lumborum (TQL) analgesia.
However each of these techniques has specific limitations that prevent them from being the analgesic technique of choice for all open abdominal surgeries.
The ultrasound (US)-guided erector spinae plane block (ESPB) was initially described by Forero et al.It as a relatively new technique, originally described to manage thoracic pain when performed at the T5 vertebra level, but it has also been successfully used for abdominal analgesia when performed at T7 level.
ESPB gained wide attention as it is a faster procedure that carries a lower risk of hypotension, can be used in patients with coagulopathy, easy to perform, and requires less training.
ESPB provides extensive, potent unilateral analgesia, performed by local anesthetic injection in the plane between the erector spinae muscle and the TP. The local anesthetic diffuses into the paravertebral space through spaces between adjacent vertebrae and blocks both the dorsal and ventral rami of the thoracic spinal nerves.
Bilateral ESPB performed at low thoracic levels provides satisfactory analgesia for abdominal surgeries in case reports and series describing abdominal exploration, cesarean section, ventral hernia repair, and abdominoplasty.
As LA widely spreads cranially and caudally when ESPB is performed, we think that ESPB can effectively be used as an analgesic method for abdominal surgeries.
The ultrasound-guided (USG) quadratus lumborum block QLB was first described by Rafael Blanco in a presentation at ESRA 2007 at the XXVI Annual ESRA Congress in Valencia, Spain. Blanco described a potential space posterior to the abdominal wall muscles and lateral to the quadratus lumborum muscle (QL) where Local anesthetics (LA) can be injected. This technique provides analgesia after abdominal surgeries due to spread of LA from its lumbar deposition cranially into the thoracic paravertebral space (TPVS) where lateral and anterior cutaneous branches from Th7 to L1 nerves can be blocked. This was proved later by Carney et al. who found traces of contrast agent in the TPVS following the block.
Quadratus lumborum block (QLB) under ultrasound has been one of the interfascial plane blocks being popularized in regional anesthesia over the last few years given the vast number of indications in a variety of abdomino-pelvic surgeries in pediatrics and adults. In clinical studies, it also has been shown to have opioid sparing effects and prolonged post-operative analgesia than more conventional procedures like TAP blocks.
Several approaches have been described for QLB. Lateral QLB (or QLB-1) where local anesthetic is injected at the anterolateral border of the QL muscle. Posterior QLB (or QLB-2) where LA is injected at the junction of QL muscle with the transversalis fascia., Another novel approach is the transmuscular QLB (or QLB-3), where the needle is advanced through the QL muscle, penetrating the ventral proper fascia of the QL muscle and LA is finally injected between the QL muscle and Psoas Major (PM) muscle. It is thought that this approach (QLB-3) does not result in redundant antero-lateral spread of the LA.
Study design
- Primary purpose
- Supportive care
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Group I : Bilateral erector spinae plane block at L1 | Other | Other: nerve blocksUltrasound (US) will be used to identify the level of L1 after skin sterilization with the patient on the lateral position. A high frequency linear-array US transducer covered in a sterile sleeve will be placed in a longitudinal parasagittal orientation 3 cm lateral to the midline to identify the trapezius above, the rhomboid major in the middle, and the erector-spinae muscle on the bottom, and the transverse Processes with shimmering pleura in between. 2-3 ml of 2% lidocaine "depocaine HCL" will be infiltrated.16-G, 8-cm Tuohy needle will be then introduced medially in the plane of the US beam and directed towards the transverse process. Once the needle is underneath the anterior fascia of the erector spinae muscle. 20 ml of bupivacaine 0.25% "sunnypivacaine" will be injected in this potential space over five minutes. The injectate will be observed spreading underneath the ES muscle lifting the muscle of the transverse process. This will be repeated on the opposite side. |
| Group II : Transmuscular quadratus lumborum block at L1 | Other | Other: nerve blocksPatient will be positioned in left lateral to obtain appropriate view of QL. Aseptic precautions will be taken by wearing sterile gown and sterile drapes. By using Ultrasound MacroMaxx™ with linear probe (HFL38_10-5 MHz) covered with sterile plastic sheath SiteRite placed in the anterior axillary line to visualize the typical triple abdominal layers. Then, the probe will be placed in the midaxillary line and at this juncture the layers of abdominal layers will start to taper. When the probe will be placed in the posterior axillary line as per the posterior approach, sonoanatomy will show first the transversus abdominis disappearing then the internal oblique and external oblique forming aponeurosis and appearance of QL noticed. At the junction of the tapered ends of abdominal muscles and QL, a 21 g 100 mm SonoPlexStimu cannula needle will be inserted in plane. Under ultrasound guidance, in that space 20 mL of 0.25% bupivacaine "sunnypivacaine"will be injected separating the fascia. |
Who may qualify
- Ages
- 18 to 70 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (3 listed)
- Patients subjected to abdominal cancer surgery.
- The enrolled age will be from 18 years to 70 years.
- ASA I-II and NYHA I-II.
Key exclusion criteria (11 listed)
- ASA physical status >II, and NYHA >II.
- Patient refusal.
- body mass index >40 kg/m2.
- preoperative opioid consumption.
- a local infection at the incision site.
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 |
|---|---|---|
| nerve blocksComparison of ultrasound-guided erector spinae plane block and transmuscular quadratus lumborum block for postoperative analgesia in abdominal cancer surgeries. | Other | Group I : Bilateral erector spinae plane block at L1, Group II : Transmuscular quadratus lumborum block at L1 |
Primary outcome
postoperative analgesia
Time frame: First 48 hours after surgery.
to assess pain intensity at rest and during pain-provoking movements (deep breathing, coughing, mobilization) measured by VAS pain score (a visual analog scale scored from 0 to 10 where 0 = no pain and 10 = the worst pain imaginable) during the first 48 hours postoperatively.
Results and safety
Results are not available in the source record.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 27 Jun 2023.
- Background: PubMed 23945838Azari L, Santoso JT, Osborne SE. Optimal pain management in total abdominal hysterectomy. Obstet Gynecol Surv. 2013 Mar;68(3):215-27. doi: 10.1097/OGX.0b013e31827f5119.
- Background: PubMed 17116561Liu SS, Richman JM, Thirlby RC, Wu CL. Efficacy of continuous wound catheters delivering local anesthetic for postoperative analgesia: a quantitative and qualitative systematic review of randomized controlled trials. J Am Coll Surg. 2006 Dec;203(6):914-32. doi: 10.1016/j.jamcollsurg.2006.08.007. Epub 2006 Oct 25. No abstract available.
- Background: PubMed 28727597Restrepo-Garces CE, Chin KJ, Suarez P, Diaz A. Bilateral Continuous Erector Spinae Plane Block Contributes to Effective Postoperative Analgesia After Major Open Abdominal Surgery: A Case Report. A A Case Rep. 2017 Dec 1;9(11):319-321. doi: 10.1213/XAA.0000000000000605.
- Background: PubMed 27501016Forero M, Adhikary SD, Lopez H, Tsui C, Chin KJ. The Erector Spinae Plane Block: A Novel Analgesic Technique in Thoracic Neuropathic Pain. Reg Anesth Pain Med. 2016 Sep-Oct;41(5):621-7. doi: 10.1097/AAP.0000000000000451.
- Background: PubMed 27997492Ueshima H, Otake H. Similarities Between the Retrolaminar and Erector Spinae Plane Blocks. Reg Anesth Pain Med. 2017 Jan/Feb;42(1):123-124. doi: 10.1097/AAP.0000000000000526. No abstract available.
- Background: PubMed 28188621Chin KJ, Adhikary S, Sarwani N, Forero M. The analgesic efficacy of pre-operative bilateral erector spinae plane (ESP) blocks in patients having ventral hernia repair. Anaesthesia. 2017 Apr;72(4):452-460. doi: 10.1111/anae.13814. Epub 2017 Feb 11.
- Background: PubMed 22476239Borglum J, Jensen K, Christensen AF, Hoegberg LC, Johansen SS, Lonnqvist PA, Jansen T. Distribution patterns, dermatomal anesthesia, and ropivacaine serum concentrations after bilateral dual transversus abdominis plane block. Reg Anesth Pain Med. 2012 May-Jun;37(3):294-301. doi: 10.1097/AAP.0b013e31824c20a9.
- Background: PubMed 21851346Carney J, Finnerty O, Rauf J, Bergin D, Laffey JG, Mc Donnell JG. Studies on the spread of local anaesthetic solution in transversus abdominis plane blocks. Anaesthesia. 2011 Nov;66(11):1023-30. doi: 10.1111/j.1365-2044.2011.06855.x. Epub 2011 Aug 18.
- Results publication: PubMed 29352577Yamak Altinpulluk E, Garcia Simon D, Fajardo-Perez M. Erector spinae plane block for analgesia after lower segment caesarean section: Case report. Rev Esp Anestesiol Reanim (Engl Ed). 2018 May;65(5):284-286. doi: 10.1016/j.redar.2017.11.006. Epub 2018 Jan 17. English, Spanish.
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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.
Questions about this trial
What is this clinical trial studying?
A study testing nerve blocks in people with Colo-rectal Cancer, run by Assiut University.
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 3 inclusion and 11 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: status not confirmed, as of the sponsor's last update on 27 Jun 2023. Status can change between updates, so confirm with the study contact before making plans.
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?
Results are not available in the source record.
How can a doctor refer a patient or contact the research team?
Contact Rana Ahmed Hamed Mohamed, resident doctor (00201050905843, rana.14231949@med.aun.edu.eg), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
postoperative analgesia (time frame: First 48 hours after surgery.). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT05709899, which also lists 9 linked publications.
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 Jun 2023.