ClinicalTrials.gg
Not yet recruitingNCT07798115CCSS-MgUpdated Sep 1, 2026

Magnesium Sulfate With Standard Combined Costoclavicular-Suprascapular Block for Pain Relief After Shoulder Arthroscopy.

An interventional study of Bupivacaine and Magnesium sulfate (MgSO4) in Shoulder Arthroscopy, Postoperative Pain and Regional Anesthesia, sponsored by Assiut University. Not yet recruiting at 1 site in Egypt. Open to participants aged 18 Years to 50 Years. Per ClinicalTrials.gov, last updated 2026-09-01.

Sponsored by Assiut University · Not applicable, Interventional, and Treatment

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Phase
Not applicable
Study type
Interventional
Enrollment
84
Allocation
Randomized
Ages
18 Years to 50 Years
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-15

Among 108 studies in Pain, Postoperative by Assiut University — 30 open to participants now, 31 under way, 5 of them phase 3. Pain, Postoperative · Assiut University.

Planned enrollment
39th of 107
84 · median 70
Started
2026
with 16 others
No phase
54 of 108
14 open now
Primary completion
2027-12
later than 25 of 30 live
Registered
98th of 108
by date

Among the 108 studies in Pain, Postoperative by Assiut University, this one is the 39th largest by planned enrollment of the 107 interventional ones that give a count, is one of 17 that started in 2026, is one of 54 with no phase, reaches primary completion later than 25 of the 30 other live ones, and was the 98th registered.

Pain, Postoperative

5,648 studies on the registry are indexed under Pain, Postoperative; 1,231 are open to participants now.

Browse Pain, Postoperative studies →

Open to participants now

30 of the 108 studies in Pain, Postoperative by Assiut University are open now, in 1 country. Recruiting first, the newest first:

24 more — sign in →

By country, each count listing its studies:

All 30 open studies →

Where they have run

Who these studies take

Of the 679 Pain, Postoperative studies recruiting now, 240 (35%) set no upper age limit and 329 (48%) stop at 75 or younger; 74 take children under 18; 128 take healthy volunteers.

This study: 18 Years to 50 Years · all sexes · no healthy volunteers.

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02

Study summary

This study aims to evaluate whether adding magnesium sulfate to a combined costoclavicular and suprascapular nerve block improves postoperative pain control in patients undergoing shoulder arthroscopy. The study will compare pain management outcomes between patients receiving the nerve block with magnesium sulfate and those receiving the nerve block without magnesium sulfate. The main outcome will be the time to first rescue analgesia after surgery.

Read the detailed description

This randomized clinical trial will evaluate the analgesic effect of adding magnesium sulfate to a combined costoclavicular and suprascapular nerve block in patients undergoing shoulder arthroscopy. Shoulder arthroscopy can be associated with significant postoperative pain, and effective regional anesthesia may improve postoperative analgesia and reduce the need for rescue analgesics.

Eligible patients undergoing shoulder arthroscopy will be randomly assigned to receive either a combined costoclavicular and suprascapular nerve block with magnesium sulfate as an adjuvant or the same nerve block without magnesium sulfate. Standardized anesthetic and postoperative analgesic protocols will be applied to both groups.

The primary outcome will be the time to first rescue analgesia after surgery. Secondary outcomes will include postoperative pain scores and other relevant analgesic and safety outcomes during the postoperative observation period.

The study aims to determine whether the addition of magnesium sulfate can prolong the duration of analgesia and improve postoperative pain management following shoulder arthroscopy.

03

Conditions studied

  • Shoulder Arthroscopy
  • Postoperative Pain
  • Regional Anesthesia

Browse trials for

Keywords

  • Costoclavicular Block
  • Suprascapular Block
  • Magnesium Sulfate
  • Postoperative Pain
  • Shoulder Arthroscopy
  • Rescue Analgesia
04

Who can participate

Ages eligible
18 Years to 50 Years
Sexes eligible
All
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

  • Age between 18-50 years
  • (ASA) physical status I-II.
  • Scheduled for elective outpatient shoulder arthroscopy.
  • Ability to understand the study protocol and use the NRS scale.

Exclusion criteria

Exclusion Criteria:

  • Refusal to participate.
  • Known allergy or to local anesthetics or magnesium sulphate.
  • Coagulopathy or anticoagulant therapy contraindicating regional anesthesia.
  • Local infection at the block site.
  • Pre-existing peripheral neuropathy or neurologic deficit involving the operative limb.
  • (BMI) > 40 kg/m² (if desired for technical standardization).
  • Chronic opioid use or chronic pain syndrome affecting pain assessment.
  • Pregnancy or lactation.
  • Inability to communicate or complete postoperative assessments.
Terms in these criteria, in plain language(3)

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.

Hypersensitivity

An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.

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
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Outcomes assessor)
Enrollment
84 participants (estimated)

Study arms

  • Experimental
    Costoclavicular-Suprascapular Block with Normal Saline

    Participants will receive a single-shot ultrasound-guided costoclavicular brachial plexus block with 5 mL of 0.5% bupivacaine (25 mg) combined with 1.5 mL of 0.9% normal saline, followed by an ultrasound-guided suprascapular nerve block with 10 mL of 0.5% bupivacaine (50 mg) combined with 1.5 mL of 0.9% normal saline.

    Drug: Bupivacaine · Drug: Normal Saline (NS) · Procedure: Costoclavicular Nerve Block · Procedure: suprascapular nerve block

  • Experimental
    Costoclavicular-Suprascapular Block with regional Magnesium Sulfate

    Participants will receive a single-shot ultrasound-guided costoclavicular brachial plexus block with 5 mL of 0.5% bupivacaine (25 mg) combined with 1.5 mL of magnesium sulfate (150 mg), followed by an ultrasound-guided suprascapular nerve block with 10 mL of 0.5% bupivacaine (50 mg) combined with 1.5 mL of magnesium sulfate (150 mg).

    Drug: Bupivacaine · Drug: Magnesium sulfate (MgSO4) · Procedure: Costoclavicular Nerve Block · Procedure: suprascapular nerve block

  • Experimental
    Costoclavicular-Suprascapular Block with Intravenous Magnesium Sulfate

    Participants will receive a single-shot ultrasound-guided costoclavicular brachial plexus block with 5 mL of 0.5% bupivacaine (25 mg) combined with 1.5 mL of 0.9% normal saline, followed by an ultrasound-guided suprascapular nerve block with 10 mL of 0.5% bupivacaine (50 mg) combined with 1.5 mL of 0.9% normal saline. Following the nerve blocks, participants will receive 150 mg of magnesium sulfate diluted in 100 mL of 0.9% normal saline administered intravenously.

    Drug: Bupivacaine · Drug: Magnesium sulfate (MgSO4) · Drug: Normal Saline (NS) · Procedure: Costoclavicular Nerve Block · Procedure: suprascapular nerve block

Interventions

  • "Bupivacaine 0.5% will be used as the local anesthetic for ultrasound-guided costoclavicular and suprascapular nerve blocks. A total of 25 mg (5 mL) will be administered for the costoclavicular nerve block and 50 mg (10 mL) for the suprascapular nerve block, for a total dose of 75 mg per participant."

  • "Magnesium sulfate 150 mg (1.5 mL) will be used as an adjuvant to bupivacaine in each ultrasound-guided nerve block. A total of 300 mg (3 mL) of magnesium sulfate will be administered per participant, with 150 mg added to the costoclavicular nerve block and 150 mg added to the suprascapular nerve block."

  • "Normal saline (0.9% sodium chloride) will be used as the control adjuvant, with 1.5 mL added to the local anesthetic solution for the costoclavicular nerve block and 1.5 mL added to the local anesthetic solution for the suprascapular nerve block, for a total volume of 3 mL per participant."

  • ProcedureCostoclavicular Nerve Block

    "A single-shot ultrasound-guided costoclavicular nerve block will be performed using 5 mL of 0.5% bupivacaine (25 mg), with either 1.5 mL of magnesium sulfate (150 mg) or 1.5 mL of 0.9% normal saline, according to the assigned study group."

  • Proceduresuprascapular nerve block

    "A single-shot ultrasound-guided suprascapular nerve block will be performed using 10 mL of 0.5% bupivacaine (50 mg), with either 1.5 mL of magnesium sulfate (150 mg) or 1.5 mL of 0.9% normal saline, according to the assigned study group."

06

What researchers measure

Primary outcomes

  1. Time to first rescue analgesia after discharge from PACU.

    Time to first rescue analgesia will be measured from the time of discharge from the Post-Anesthesia Care Unit (PACU) until the first administration of rescue analgesic medication for 24 hour due to postoperative pain. Numeric Rating Scale (NRS): Pain intensity was assessed using the 11-point Numeric Rating Scale (NRS), in which 0 = no pain and 10 = the worst pain imaginable.

    Time frame: From discharge from PACU until 24 hours postoperatively.

Secondary outcomes

  1. Postoperative Pain Score Using the Numeric Rating Scale

    Postoperative pain intensity will be assessed from the end of surgery for 24 hours postoperatively using the Numeric Rating Scale (NRS), ranging from 0 to 10, where 0 indicates no pain and 10 indicates the worst pain imaginable. Higher scores indicate worse pain.

    Time frame: At predetermined time points after surgery at ( 2h,6h,12h,18h,24h) during the first 24 hours postoperatively.

  2. Total Postoperative analgesic Consumption

    The total amount of rescue analgesia consumed during the first 24 hours after surgery will be recorded.

    Time frame: First 24 hours postoperatively (one day).

  3. Duration of sensory block

    Duration of sensory block will be assessed as the time interval from completion of the nerve block to the first administration of rescue analgesia 24 hours postoperatively.

    Time frame: From completion of the nerve block until the first administration of rescue analgesia24 hours postoperatively.

  4. Heart rate

    Heart rate will be recorded at predefined perioperative time points to assess hemodynamic stability from baseline before surgery until end of surgery.

    Time frame: From baseline before the nerve block until the end of surgery.

  5. Systolic blood pressure (SBP)

    Systolic blood pressure will be recorded at baseline and at predefined intraoperative every 5 minutes and postoperative time points at (2h, 6h,12h,24h).

    Time frame: From baseline before anesthesia induction until 24 hours postoperatively.

  6. Diastolic blood pressure (DBP)

    Diastolic blood pressure will be recorded at baseline and at predefined intraoperative every 5 minutes and postoperative time points at (2h, 6h,12h,24h).

    Time frame: From baseline before anesthesia induction until 24 hours postoperatively.

  7. Mean Arterial Pressure

    Mean Arterial Pressure will be recorded at baseline and at predefined intraoperative every 5 minutes and postoperative time points at (2h, 6h,12h,24h).

    Time frame: From baseline before anesthesia induction until 24 hours postoperatively.

  8. Incidence of Block-Related Adverse Events

    The incidence of adverse events related to the regional anesthesia technique, including symptoms or complications associated with the nerve blocks, will be recorded.

    Time frame: From performance of the nerve blocks until 24 hours postoperatively.

07

Study locations

1 site
  • Assiut University Hospital
    Asyut, Egypt
    • Ahmed Shaban Abd Elbadea Khalifa, Assistant Lecturer · Contactahmedshabann144@gmail.com · +20 1143990130
    • Mohamed Talaat Mohamed, Lecturer · Contacttal3t200895@aun.edu.eg · +20 1062012031
    • Mohamed Mohamed Abdel Latif, professor · Principal investigator
    • Eman Ahmed Ismail, professor · Principal investigator
    • Mohamed Talaat Mohamed, Lecturer · Sub investigator
    • Ahmed Shaban Abd Elbadea Khalifa, Assistant lecturer · Sub investigator
08

References and documents

Publications

  • Pirotesak S, Fallah N, Alruqaie R, Rodelo K, Asenjo JF, Aliste J. Costoclavicular brachial plexus block for shoulder surgery: a narrative review. Korean J Anesthesiol. 2025 Dec;78(6):513-523. doi: 10.4097/kja.25422. Epub 2025 Aug 4. PubMed 40755089 ↗
  • Soleimanpour H, Imani F, Dolati S, Soleimanpour M, Shahsavarinia K. Management of pain using magnesium sulphate: a narrative review. Postgrad Med. 2022 Apr;134(3):260-266. doi: 10.1080/00325481.2022.2035092. Epub 2022 Feb 7. PubMed 35086408 ↗
  • Jo Y, Oh C, Lee WY, Chung HJ, Park J, Kim YH, Ko Y, Chung W, Hong B. Randomised comparison between superior trunk and costoclavicular blocks for arthroscopic shoulder surgery: A noninferiority study. Eur J Anaesthesiol. 2022 Oct 1;39(10):810-817. doi: 10.1097/EJA.0000000000001735. Epub 2022 Aug 17. PubMed 35975762 ↗
  • Nam YS, Jeong JJ, Han SH, Park SE, Lee SM, Kwon MJ, Ji JH, Kim KS. An anatomic and clinical study of the suprascapular and axillary nerve blocks for shoulder arthroscopy. J Shoulder Elbow Surg. 2011 Oct;20(7):1061-8. doi: 10.1016/j.jse.2011.04.022. Epub 2011 Aug 11. PubMed 21839653 ↗
  • Galluccio F, Fajardo Perez M, Yamak Altinpulluk E, Hou JD, Lin JA. Evaluation of Interfascial Plane and Pericapsular Nerve Blocks to the Shoulder Joint: A Preliminary Analysis of Shoulder Anterior Capsular Block. Pain Ther. 2021 Dec;10(2):1741-1754. doi: 10.1007/s40122-021-00326-0. Epub 2021 Oct 20. PubMed 34669181 ↗
  • Kay J, Memon M, Hu T, Simunovic N, Duong A, Paul J, Athwal G, Ayeni OR. Suprascapular Nerve Blockade for Postoperative Pain Control After Arthroscopic Shoulder Surgery: A Systematic Review and Meta-analysis. Orthop J Sports Med. 2018 Dec 28;6(12):2325967118815859. doi: 10.1177/2325967118815859. eCollection 2018 Dec. PubMed 30627589 ↗

Individual participant data

Plan to share: No — Individual participant data will not be shared with other researchers because no plan for IPD sharing has been established. Study data will be used for the purposes of the current research and will be handled in accordance with institutional policies and applicable ethical and privacy requirements.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar 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

Start is estimated for Sep 2026; primary completion for Dec 2027, 15 months later.

Of 2,096 non-industry interventional studies with no phase under Pain, Postoperative, half reached primary completion within 11 months of starting (the median), counting those still running; a quarter within 6 and three quarters within 23. This study's planned 15 months is above that.

Counting every sponsor, half of 2,109 studies reached it within 11 months; a quarter within 6 and three quarters within 23.

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

Registered
Aug 21, 2026
First posted
Sep 1, 2026
StartEst.
Sep 1, 2026
Primary completionEst.
Dec 30, 2027
CompletionEst.
Mar 30, 2028
Last update
Sep 1, 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.
No changes since tracking began. The registry record was last updated on Sep 1, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT07798115
Lead sponsor
Assiut University
Responsible party
Ahmed Shaban Abd Elbadea Khalifa (Assistant Lecturer of Anesthesiology, Assiut University) — Principal investigator
First posted
Sep 1, 2026
Start date
Sep 1, 2026 (estimated)
Primary completion
Dec 30, 2027 (estimated)
Completion
Mar 30, 2028 (estimated)
Last update
Sep 1, 2026

Study contacts

Ahmed Shaban Abd elbadea Khalifa, Assistant lecturer
Contact
ahmedshabann144@gmail.com
+20 1143990130
Mohamed Talaat Mohamed, lecturer
Contact
tal3t200895@aun.edu.eg
+20 1062012031
Mohamed Mohamed Abdel Latif, professor
principal investigator · Assiut University, Faculty of Medicine
Eman Ahmed Ismail, professor
study director · Assiut University, Faculty of Medicine
Mohamed Talaat Mohamed, Lecturer
study director · Assiut University, Faculty of Medicine
Ahmed Shaban Abd Elbadea Khalifa, Assistant lecturer
study chair · Assiut University, Faculty of Medicine

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

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Studies of the drugs tested here: Magnesium sulfate anhydrous · Saline Solution

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