ClinicalTrials.gg
RecruitingNCT07650305Updated Nov 12, 2026

Bilevel Erector Spinae Plane Block Versus Pectoserratus Block for Analgesia in Modified Radical Mastectomy

An interventional study of Ultrasound guided bilevel Erector spinae plane block (ESPB) and Ultrasound guided Pectoserratus Block in Breast Cancer, sponsored by National Cancer Institute, Egypt. Recruiting at 1 site in Egypt. Open to female participants aged 18 Years to 65 Years. Per ClinicalTrials.gov, last updated 2026-11-12.

Sponsored by National Cancer Institute, Egypt · Not applicable, Interventional, and Prevention

From the registry’s dates

  • Started May 2026; still recruiting 6 months later.
Updated Nov 12, 2026Primary completion movedStudy completion moved+2 moreGo to Updates ↓

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Phase
Not applicable
Study type
Interventional
Enrollment
60
Allocation
Randomized
Ages
18 Years to 65 Years
Sex
Female
01

Where this study stands

Counted across the records on this site · 2026-11-13

Among 19 studies in Breast Neoplasms by National Cancer Institute, Egypt — 5 open to participants now, 5 under way, none of them phase 3. Breast Neoplasms · National Cancer Institute, Egypt.

Planned enrollment
14th of 19
60 · median 90
Started
2026
with 1 other
No phase
17 of 19
5 open now
Registered
19th of 19
by date

Among the 19 studies in Breast Neoplasms by National Cancer Institute, Egypt, this one is the 14th largest by planned enrollment, is one of 2 that started in 2026, is one of 17 with no phase, and was the 19th registered.

Breast Neoplasms

14,829 studies on the registry are indexed under Breast Neoplasms; 3,318 are open to participants now.

Browse Breast Neoplasms studies →

Open to participants now

5 of the 19 studies in Breast Neoplasms by National Cancer Institute, Egypt are open now, in 1 country. Recruiting first, the newest first:

By country, each count listing its studies:

All 5 open studies →

Where they have run

Who these studies take

Of the 2,398 Breast Neoplasms studies recruiting now, 1,569 (65%) set no upper age limit and 592 (25%) stop at 75 or younger; 103 take children under 18; 215 take healthy volunteers.

This study: 18 Years to 65 Years · female · no healthy volunteers.

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Watch this landscapeDownload CSVNarrow it in search →With an account: a weekly mail of what changed among 19 studies in Breast Neoplasms by National Cancer Institute, Egypt, or all of them as a file.
02

Study summary

Breast cancer remains the most frequently diagnosed cancer and a major cause of cancer-related mortality among women worldwide. Modified radical mastectomy (MRM), a common surgical procedure for breast cancer, is associated with significant postoperative pain, which may delay recovery and contribute to the development of chronic postmastectomy pain syndrome (PMPS). To address this, regional anesthesia techniques have been increasingly incorporated into multimodal analgesia strategies to reduce opioid consumption and enhance patient outcomes. Interfascial plane blocks, in particular, offer safe and effective analgesia under ultrasound guidance. The erector spinae plane block (ESPB), first described in 2016, involves injection of local anesthetic deep to the erector spinae muscle and may spread to the paravertebral space, providing both somatic and visceral analgesia. A bilevel approach may enhance dermatomal coverage. Meanwhile, the pectoserratus plane block (PSPB), which combines PECS II and serratus anterior blocks, targets nerves of the anterior and lateral chest wall and has shown efficacy in breast surgery

Read the detailed description

Breast cancer is the most common diagnosed malignancy among females and the 5th cause of cancer-related deaths with an estimated number of 2.3 million new cases and 685,000 deaths worldwide in 2020.

Different modalities are used for management of breast cancer including surgery, radiation therapy (RT), chemotherapy (CT), endocrine (hormone) therapy (ET), and targeted therapy. Modified Radical Mastectomy (MRM) is one of the main modalities of breast cancer treatment. It accounts for 31% of all breast surgeries. It has been reported that 40% of the females complain from moderate-to-severe pain in the immediate post-operative period after breast cancer surgery.

Acute post-mastectomy pain can cause adverse impacts on the patients as delayed discharge from post-operative recovery area, impairs pulmonary and immune functions, increases risk of ileus, thromboembolism, myocardial infarction and may lead to increased length of hospital stay. It is also an important factor leading to the development of chronic post mastectomy pain syndrome (PMPS) in almost half of the patients.

Various regional anesthetic techniques have been described for postoperative pain relief after mastectomy, for example, thoracic epidural anesthesia, intercostal nerve block, paravertebral block, serratus anterior plane block, and pectoral nerve I and II blocks. All of them offer satisfactory pain relief after mastectomy.

The erector spinae plane block (ESPB), first described in 2016, involves injection of local anesthetic deep to the erector spinae muscle and may spread to the paravertebral space, providing both somatic and visceral analgesia. A bilevel approach may enhance dermatomal coverage. Meanwhile, the pectoserratus plane block (PSPB), which combines PECS II and serratus anterior blocks, targets nerves of the anterior and lateral chest wall and has shown efficacy in breast surgery

03

Conditions studied

  • Breast Cancer

Browse trials for

Keywords

  • erector spinae plane block
  • pectoserratus block
  • ultrasound
04

Who can participate

Ages eligible
18 Years to 65 Years
Sexes eligible
Female
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  1. Breast cancer female patients.
  2. II and III.
  3. Age ≥ 18 and ≤ 65 Years.
  4. (BMI): > 20 kg/m2 and \< 35 kg/m2.
  5. Type of surgery; elective breast cancer surgery modified radical mastectomy combined with axillary dissection.

Exclusion criteria

Exclusion Criteria:

  1. Patient refusal.
  2. Age \<18 years or >65 years.
  3. \<20 kg/m2 and >35 kg/m2.
  4. Major medical conditions.
  5. Pregnancy or lactation.
Terms in these criteria, in plain language(2)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

ASA physical status

The anaesthetists’ scale of health before surgery: I is healthy, II has a mild illness that is under control, III a severe one, IV a severe illness that is a constant threat to life. V and VI are used for the critically ill and for organ donors.

BMI (body mass index)

Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.

What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.

05

Study design

Phase
Not applicable
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Outcomes assessor)
Enrollment
60 participants (estimated)

Study arms

  • Active comparator
    Ultrasound guided bilevel Erector spinae plane block (ESPB)

    Before induction of general anesthesia, patients will be positioned in the sitting position leaning forward. The 3rd and 5th vertebral spinous processes will be first identified then the block area will be adequately sterilized and draped. The block will be done as needed using either a high frequency linear probe (6- 13 MHz) or a curved (2-5 MHz) probe of . The probe used to identify the hyperechoic transverse process shadow at approximately 1.5- 2 cm distance from the spinous process deep to the trapezius, rhomboid major, and erector spinae muscles at 3rd, 5th vertebrae. Then, an 18-gauge epidural needle will be inserted in a cephalad-to-caudad direction to reach the transverse process deep to the erector spinae muscle. Correct positioning of the needle will be confirmed through real time visualization of 2 ml saline hydro dissection at both 3rd and 5th vertebrae.20 ml of bupivacaine 0.25% will be injected at each level.

    Procedure: Ultrasound guided bilevel Erector spinae plane block (ESPB)

  • Active comparator
    Ultrasound guided Pectoserratus Block (PSPB)

    For the PECS block, the patient's arm is abducted 90° and externally rotated. The ultrasound probe is positioned beneath the lateral third of the clavicle to locate the axillary vessels and subclavian artery. The probe is moved distally and laterally to the second and third rib space to identify the pectoralis major. A 20G, 100 mm echogenic needle is inserted between the pectoralis muscles; 15 mL of local anesthetic (LA) is administered in 5 cc increments. The probe is then shifted distally and laterally to the third and fourth rib space. The fascial plane between the pectoralis minor and serratus anterior muscles is identified , and 10 mL of LA is injected in 5 cc increments. For the SAPB, the probe is placed on the midaxillary line at the fifth rib level to visualize the serratus anterior and latissimus dorsi. A 22G spinal needle is inserted in-plane at a 45° angle toward the fifth rib. Saline (0.5-1 mL) is injected to open the plane, and 15 mL of 0.25% LA is administered

    Procedure: Ultrasound guided Pectoserratus Block

  • No intervention
    control group

    the patients of this group received general anesthesia without regional plane block

Interventions

  • ProcedureUltrasound guided bilevel Erector spinae plane block (ESPB)

    Ultrasound guided bilevel Erector spinae plane block

  • ProcedureUltrasound guided Pectoserratus Block

    ultra sound guided combined Pectoral Nerve (PECS II) Block and Serratus anterior (SAPB) plane block

06

What researchers measure

Primary outcomes

  1. Total post-operative morphine consumption.

    The total 24-hour morphine consumption will be recorded for every patient post operative.

    Time frame: 24 hours after the surgery

Secondary outcomes

  1. Total intra-operative fentanyl consumption

    the rescue analgesia will be administered intra-operative by fentanyl IV and the total fentanyl used will be recorded and compared between the groups

    Time frame: 2-3 hours (Surgery time) surgery

  2. 1st time opioids requested post-operative.

    In case of postoperative pain recorded, rescue analgesia will be provided as IV morphine (3 mg) then continuous infusion of morphine through Patient Controlled Analgesia ( PCA ) to keep the VAS scores\<3. The total 24-hour morphine consumption will be recorded for every patient.

    Time frame: 24 hours after the surgery

  3. Changes and stability in Mean Arterial Blood Pressure (MAP)

    Change in Mean Arterial Blood Pressure (MAP) in mmHg

    Time frame: every 15 minutes during the surgery then at 1, 2, 4, 8, 12, 16, 20 and 24 hours postoperatively

  4. Changes and stability in Heart Rate (HR)

    Change in heart rate (HR) in beat\\min

    Time frame: every 15 minutes during the surgery then at 1, 2, 4, 8, 12, 16, 20 and 24 hours postoperatively

  5. Pain scores using Visual analogue score

    Pain scores using Visual analogue score (VAS) (0 mm = no pain to 10mm = worst pain imaginable) at predetermined time intervals (1, 2, 6, 12 and 24h) postoperative.

    Time frame: 24 hours after the surgery

07

Study locations

1 of 1 sites recruiting
08

Timeline

1 registry update since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedDate before it movedWhere the date was before it movedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Started May 2026 (actual). Primary completion is estimated for Dec 2026, 7 months after the start.

Of 2,662 non-industry interventional studies with no phase under Breast Neoplasms, half reached primary completion within 33 months of starting (the median), counting those still running; a quarter within 16 and three quarters within 66. This study's planned 7 months is below that.

Counting every sponsor, half of 2,772 studies reached it within 33 months; a quarter within 15 and three quarters within 66.

Since we started tracking on Sep 25, 2026, the dates moved once, on Nov 12, 2026: primary completion Aug 2026 → Dec 2026 and completion Aug 2026 → Dec 2026.

Earlier changes are on the record history on ClinicalTrials.gov ↗

How these figures are worked out, and which studies are left out of them.

Registered
Jun 10, 2026
First posted
Jun 16, 2026
StartActual
May 1, 2026
Primary completionEst.
Dec 1, 2026was Aug 2026
CompletionEst.
Dec 2, 2026was Aug 2026
Last update
Nov 12, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
Sites
1 site added, 1 site removed
Show site
  • National Cancer Institute - Cairo University · Cairo, Egypt
Show 1 removed
  • National Cancer Institute - Cairo University · Cairo, Egypt
Nov 12, 2026
Primary completion
Aug 1, 2026→Dec 1, 2026
Nov 12, 2026
Study completion
Aug 2, 2026→Dec 2, 2026
Nov 12, 2026
Show all 1 update
  1. Nov 12, 2026
    1 site added, 1 site removed
    Show site
    • National Cancer Institute - Cairo University · Cairo, Egypt
    Show 1 removed
    • National Cancer Institute - Cairo University · Cairo, Egypt
    Primary completion Aug 1, 2026→Dec 1, 2026
    Study completion Aug 2, 2026→Dec 2, 2026
    + 1 other change: verification date

From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗

09

Registry details

Key details

Study ID
NCT07650305
Responsible party
Ayman Sharawy Abdel Rahman Aboul Nasr (Principal investigator, National Cancer Institute, Egypt) — Principal investigator
First posted
Jun 16, 2026
Start date
May 1, 2026
Primary completion
Dec 1, 2026 (estimated)
Completion
Dec 2, 2026 (estimated)
Last update
Nov 12, 2026

Study contacts

Ayman Sharawy Abdelrahman Aboul Nasr, MD
Contact
ayman.sharawy@nci.cu.edu.eg
01282649008 ext. 0020
Yousr Farag Abdelhamid, MSc
Contact
dr.yousrfarag@gmail.com
01095444856
Ayman Sharawy Abdelrahman Aboul Nasr, MD
study director · National Cancer Institute Cairo University

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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