Modified Radical MastectomyNCT07789600
Trial Evaluating the Analgesic Efficacy of Magnesium Sulfate as an Adjuvant to Bupivacaine in Local Wound Infiltration for Patients Undergoing Modified Radical Mastectomy (MRM) With Axillary Clearance
A study testing Magnesium Sulfate 750 mg with Bupivacaine 0.5% for Local Wound Infiltration and Bupivacaine 0.5% + Normal Saline in people with Modified Radical Mastectomy, run by King Hussein Cancer Center at 1 site in Jordan.
Trial summary
This is a double-blind, randomized, controlled clinical trial evaluating the analgesic efficacy and safety of magnesium sulfate as an adjuvant to bupivacaine for local wound infiltration in patients undergoing modified radical mastectomy with axillary clearance. Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Modified Radical Mastectomy
- What is being tested?
- Magnesium Sulfate 750 mg with Bupivacaine 0.5% for Local Wound Infiltration and Bupivacaine 0.5% + Normal Saline
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 70 participants
- Where
- 1 siteJordan
- Study dates
- 1 Sep 2026to 1 Mar 2028
- Phase
- Interventional
- Are there results?
- Not yet: the study is under way
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
- Adult female patients (age ≥18 years) undergoing elective modified radical mastectomy (MRM) with axillary clearance.
- ASA physical status I-III.
- Willingness to participate and provide informed consent.
Who cannot join
- Allergy to bupivacaine or magnesium.
- Chronic opioid use or pre-existing chronic pain conditions.
- Significant renal or hepatic impairment.
- Pregnancy or lactation.
- Neuromuscular disorders.
- Abnormal baseline serum magnesium levels (e.g., hypermagnesemia).
Trial locations and contacts
1 site in 1 country. Contact the study team or a site near you to ask about taking part.
Jordan1 site
King Hussien Cancer Centre
Amman
Supervisor, Clinical Trials Unit, +962 6 5300460 ext. 1342, FZahran@KHCC.JO
Clinical Research Coordinator, 0.22, +962 788390734 ext. 1342, aa.18586@KHCC.JO
About this study
Official title: A Double-Blind, Randomized Controlled Trial Evaluating the Analgesic Efficacy of Magnesium Sulfate as an Adjuvant to Bupivacaine in Local Wound Infiltration for Patients Undergoing Modified Radical Mastectomy (MRM) With Axillary Clearance
This is a double-blind, randomized, controlled clinical trial evaluating the analgesic efficacy and safety of magnesium sulfate as an adjuvant to bupivacaine for local wound infiltration in patients undergoing modified radical mastectomy with axillary clearance. Participants will be randomized to receive either magnesium sulfate 750 mg with bupivacaine or the control intervention. Postoperative pain, analgesic requirements, and safety outcomes will be assessed during the postoperative period, including a follow-up safety assessment between Day 7 and Day 14 after surgery.
- Conditions
- Modified Radical Mastectomy
- Being tested
- Magnesium Sulfate 750 mg with Bupivacaine 0.5% for Local Wound Infiltration, Bupivacaine 0.5% + Normal Saline
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Magnesium Sulfate 750 mg with Bupivacaine 0.5% for Local Wound InfiltrationDrug
Magnesium sulfate 750 mg added to 0.5% bupivacaine for a single intraoperative local wound infiltration following modified radical mastectomy with axillary clearance.
Bupivacaine 0.5% + Normal SalineDrug
A single intraoperative local wound infiltration of 0.5% bupivacaine combined with normal saline following modified radical mastectomy with axillary clearance. The planned bupivacaine dose is 100 mg (20 mL), subject to reduction if it exceeds the participant-specific maximum allowable dose based on body weight.
| Study group | Role | What they receive |
|---|---|---|
| Magnesium Sulfate + Bupivacaine | Experimental | Participants will receive a single intraoperative local wound infiltration following modified radical mastectomy with axillary clearance, consisting of 750 mg magnesium sulfate combined with 0.5% bupivacaine. The planned bupivacaine dose is 100 mg (20 mL), subject to reduction if it exceeds the participant-specific maximum allowable dose based on body weight. Receives: Drug: Magnesium Sulfate 750 mg with Bupivacaine 0.5% for Local Wound Infiltration |
| Bupivacaine + Normal Saline | Active comparator | Participants will receive a single intraoperative local wound infiltration following modified radical mastectomy with axillary clearance, consisting of 0.5% bupivacaine combined with normal saline. The planned bupivacaine dose is 100 mg (20 mL), subject to reduction if it exceeds the participant-specific maximum allowable dose based on body weight. Receives: Drug: Bupivacaine 0.5% + Normal Saline |
What is being measured
The primary outcome is the main question the study is designed to answer.
Overall Postoperative Pain Burden During the First 24 Hours After Surgery
Area under the curve (AUC) of Visual Analogue Scale (VAS) pain scores at rest during the first 24 hours after surgery. The Visual Analogue Scale (VAS) ranges from 0 to 10, where 0 indicates no pain and 10 indicates the worst imaginable pain; higher scores indicate worse pain.
Measured: From the end of surgery through 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 posted27 Aug 2026
- Study start1 Sep 2026 (estimated)
- Primary completion1 Dec 2027 (estimated)
- Study completion1 Mar 2028 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (10)Papers the sponsor has linked to this study.
- Other trials for Modified Radical MastectomyStudies of the same condition, open and under way.
- 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
- Triple blind
- Who is masked
- Participant, Care provider, Investigator
- Enrolment
- 70 participants (estimated)
Sponsor and investigators
- Lead sponsor
- King Hussein Cancer Center
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07789600
- Sponsor's protocol ID
- 25 KHCC 159
- Status last verified
- Aug 2026
- First submitted
- 24 Aug 2026
- Last updated
- 31 Aug 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
Publications
Antel R, Ingelmo P. Local anesthetic systemic toxicity. CMAJ. 2022 Sep 26;194(37):E1288. doi: 10.1503/cmaj.220835. No abstract available.
PubMed 36162843Rosenberg PH, Veering BT, Urmey WF. Maximum recommended doses of local anesthetics: a multifactorial concept. Reg Anesth Pain Med. 2004 Nov-Dec;29(6):564-75; discussion 524. doi: 10.1016/j.rapm.2004.08.003.
PubMed 15635516Stamenkovic DM, Bezmarevic M, Bojic S, Unic-Stojanovic D, Stojkovic D, Slavkovic DZ, Bancevic V, Maric N, Karanikolas M. Updates on Wound Infiltration Use for Postoperative Pain Management: A Narrative Review. J Clin Med. 2021 Oct 11;10(20):4659. doi: 10.3390/jcm10204659.
PubMed 34682777Albrecht E, Kirkham KR, Liu SS, Brull R. Peri-operative intravenous administration of magnesium sulphate and postoperative pain: a meta-analysis. Anaesthesia. 2013 Jan;68(1):79-90. doi: 10.1111/j.1365-2044.2012.07335.x. Epub 2012 Nov 1.
PubMed 23121612Eldaba AA, Amr YM, Sobhy RA. Effect of wound infiltration with bupivacaine or lower dose bupivacaine/magnesium versus placebo for postoperative analgesia after cesarean section. Anesth Essays Res. 2013 Sep-Dec;7(3):336-40. doi: 10.4103/0259-1162.123227.
PubMed 258859795. Dabbagh A, Elyasi H, Fathololoumi S, Fathi M. Magnesium sulfate infiltration of pectoralis major muscle for analgesia after mastectomy: A randomized controlled trial. Regional Anesthesia and Pain Medicine. 2021;46(8):655-661.
4. Alshawadfy A, Abdel-Ghaffar M, Magdy N. Comparative analgesic efficacy of adding magnesium sulphate to bupivacaine in serratus anterior plane block to reduce pain after mastectomy. Southern African Journal of Anaesthesia and Analgesia. 2022;28(6):235-240. doi:10.36303/SAJAA.2022.28.6.2783
Tauzin-Fin P, Sesay M, Svartz L, Krol-Houdek MC, Maurette P. Wound infiltration with magnesium sulphate and ropivacaine mixture reduces postoperative tramadol requirements after radical prostatectomy. Acta Anaesthesiol Scand. 2009 Apr;53(4):464-9. doi: 10.1111/j.1399-6576.2008.01888.x. Epub 2009 Feb 18.
PubMed 19226292Dave S, Gopalakrishnan K, Krishnan S, Natarajan N. Analgesic Efficacy of Addition of Magnesium Sulfate to Bupivacaine in Wound Infiltration Technique in Perianal Surgeries. Anesth Essays Res. 2022 Apr-Jun;16(2):250-254. doi: 10.4103/aer.aer_107_22. Epub 2022 Oct 7.
PubMed 36447918Kundra S, Singh RM, Singh G, Singh T, Jarewal V, Katyal S. Efficacy of Magnesium Sulphate as an Adjunct to Ropivacaine in Local Infiltration for Postoperative Pain Following Lower Segment Caesarean Section. J Clin Diagn Res. 2016 Apr;10(4):UC18-22. doi: 10.7860/JCDR/2016/17119.7683. Epub 2016 Apr 1.
PubMed 27190924
Study at a glance
From the registry record, last updated by the sponsor on 31 Aug 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Double-Blind, Randomized Controlled Trial Evaluating the Analgesic Efficacy of Magnesium Sulfate as an Adjuvant to Bupivacaine in Local Wound Infiltration for Patients Undergoing Modified Radical Mastectomy (MRM) With Axillary Clearance
- ClinicalTrials.gov ID
- NCT07789600
- Acronym / sponsor ID
- 25 KHCC 159
- Conditions
- Modified Radical Mastectomy
- Study type
- Interventional
- Recruitment status
- Not yet recruiting
- Enrolment
- 70 participants (estimated)
- Lead sponsor
- King Hussein Cancer CenterUniversity, hospital or other
- Study start
- 1 Sep 2026 (estimated)
- Primary completion
- 1 Dec 2027 (estimated)
- Study completion
- 1 Mar 2028 (estimated)
- First posted
- 27 Aug 2026 (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 is a double-blind, randomized, controlled clinical trial evaluating the analgesic efficacy and safety of magnesium sulfate as an adjuvant to bupivacaine for local wound infiltration in patients undergoing modified radical mastectomy with axillary clearance. Participants will be randomized to receive either magnesium sulfate 750 mg with bupivacaine or the control intervention. Postoperative pain, analgesic requirements, and safety outcomes will be assessed during the postoperative period, including a follow-up safety assessment between Day 7 and Day 14 after surgery.
Study design
- Primary purpose
- Supportive care
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Triple blind (participant, care provider, investigator)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Magnesium Sulfate + Bupivacaine | Experimental | Drug: Magnesium Sulfate 750 mg with Bupivacaine 0.5% for Local Wound InfiltrationParticipants will receive a single intraoperative local wound infiltration following modified radical mastectomy with axillary clearance, consisting of 750 mg magnesium sulfate combined with 0.5% bupivacaine. The planned bupivacaine dose is 100 mg (20 mL), subject to reduction if it exceeds the participant-specific maximum allowable dose based on body weight. |
| Bupivacaine + Normal Saline | Active comparator | Drug: Bupivacaine 0.5% + Normal SalineParticipants will receive a single intraoperative local wound infiltration following modified radical mastectomy with axillary clearance, consisting of 0.5% bupivacaine combined with normal saline. The planned bupivacaine dose is 100 mg (20 mL), subject to reduction if it exceeds the participant-specific maximum allowable dose based on body weight. |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (3 listed)
- Adult female patients (age ≥18 years) undergoing elective modified radical mastectomy (MRM) with axillary clearance.
- ASA physical status I-III.
- Willingness to participate and provide informed consent.
Key exclusion criteria (6 listed)
- Allergy to bupivacaine or magnesium.
- Chronic opioid use or pre-existing chronic pain conditions.
- Significant renal or hepatic impairment.
- Pregnancy or lactation.
- Neuromuscular disorders.
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 |
|---|---|---|
| Magnesium Sulfate 750 mg with Bupivacaine 0.5% for Local Wound InfiltrationMagnesium sulfate 750 mg added to 0.5% bupivacaine for a single intraoperative local wound infiltration following modified radical mastectomy with axillary clearance. | Drug | Magnesium Sulfate + Bupivacaine |
| Bupivacaine 0.5% + Normal SalineA single intraoperative local wound infiltration of 0.5% bupivacaine combined with normal saline following modified radical mastectomy with axillary clearance. The planned bupivacaine dose is 100 mg (20 mL), subject to reduction if it exceeds the participant-specific maximum allowable dose based on body weight. | Drug | Bupivacaine + Normal Saline |
Primary outcome
Overall Postoperative Pain Burden During the First 24 Hours After Surgery
Time frame: From the end of surgery through 24 hours postoperatively.
Area under the curve (AUC) of Visual Analogue Scale (VAS) pain scores at rest during the first 24 hours after surgery. The Visual Analogue Scale (VAS) ranges from 0 to 10, where 0 indicates no pain and 10 indicates the worst imaginable pain; higher scores indicate worse pain.
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 31 Aug 2026.
- Background: PubMed 36162843Antel R, Ingelmo P. Local anesthetic systemic toxicity. CMAJ. 2022 Sep 26;194(37):E1288. doi: 10.1503/cmaj.220835. No abstract available.
- Background: PubMed 15635516Rosenberg PH, Veering BT, Urmey WF. Maximum recommended doses of local anesthetics: a multifactorial concept. Reg Anesth Pain Med. 2004 Nov-Dec;29(6):564-75; discussion 524. doi: 10.1016/j.rapm.2004.08.003.
- Background: PubMed 34682777Stamenkovic DM, Bezmarevic M, Bojic S, Unic-Stojanovic D, Stojkovic D, Slavkovic DZ, Bancevic V, Maric N, Karanikolas M. Updates on Wound Infiltration Use for Postoperative Pain Management: A Narrative Review. J Clin Med. 2021 Oct 11;10(20):4659. doi: 10.3390/jcm10204659.
- Background: PubMed 23121612Albrecht E, Kirkham KR, Liu SS, Brull R. Peri-operative intravenous administration of magnesium sulphate and postoperative pain: a meta-analysis. Anaesthesia. 2013 Jan;68(1):79-90. doi: 10.1111/j.1365-2044.2012.07335.x. Epub 2012 Nov 1.
- Background: PubMed 25885979Eldaba AA, Amr YM, Sobhy RA. Effect of wound infiltration with bupivacaine or lower dose bupivacaine/magnesium versus placebo for postoperative analgesia after cesarean section. Anesth Essays Res. 2013 Sep-Dec;7(3):336-40. doi: 10.4103/0259-1162.123227.
- Background5. Dabbagh A, Elyasi H, Fathololoumi S, Fathi M. Magnesium sulfate infiltration of pectoralis major muscle for analgesia after mastectomy: A randomized controlled trial. Regional Anesthesia and Pain Medicine. 2021;46(8):655-661.
- Background4. Alshawadfy A, Abdel-Ghaffar M, Magdy N. Comparative analgesic efficacy of adding magnesium sulphate to bupivacaine in serratus anterior plane block to reduce pain after mastectomy. Southern African Journal of Anaesthesia and Analgesia. 2022;28(6):235-240. doi:10.36303/SAJAA.2022.28.6.2783
- Background: PubMed 19226292Tauzin-Fin P, Sesay M, Svartz L, Krol-Houdek MC, Maurette P. Wound infiltration with magnesium sulphate and ropivacaine mixture reduces postoperative tramadol requirements after radical prostatectomy. Acta Anaesthesiol Scand. 2009 Apr;53(4):464-9. doi: 10.1111/j.1399-6576.2008.01888.x. Epub 2009 Feb 18.
- Background: PubMed 36447918Dave S, Gopalakrishnan K, Krishnan S, Natarajan N. Analgesic Efficacy of Addition of Magnesium Sulfate to Bupivacaine in Wound Infiltration Technique in Perianal Surgeries. Anesth Essays Res. 2022 Apr-Jun;16(2):250-254. doi: 10.4103/aer.aer_107_22. Epub 2022 Oct 7.
- Background: PubMed 27190924Kundra S, Singh RM, Singh G, Singh T, Jarewal V, Katyal S. Efficacy of Magnesium Sulphate as an Adjunct to Ropivacaine in Local Infiltration for Postoperative Pain Following Lower Segment Caesarean Section. J Clin Diagn Res. 2016 Apr;10(4):UC18-22. doi: 10.7860/JCDR/2016/17119.7683. Epub 2016 Apr 1.
Related trials for Modified Radical Mastectomy
Not yet recruiting
Effect of Pectoral Nerve Block (PECS) Using Magnesium Sulfate Added to Dexamethasone on Quality of Recovery and Chronic Post-Mastectomy Pain
Breast Cancer, Postoperative Pain
Recruiting
Comparison of Postoperative Analgesic Efficacy of Two Different Blocks in Modified Radical Mastectomy Surgery
Breast Cancer, Postoperative Pain
Not yet recruiting
Perioperative Mirogabalin for Pain Relief After Modified Radical Mastectomy
Breast Cancer, Post Operative Pain
Recruiting
Ultrasound-Guided SPSIP Versus ESPB for Postoperative Pain After Modified Radical Mastectomy
Breast Cancer, Postoperative Pain
Not yet recruiting
Comparıson of Analgesıc Effıcacy of Dıfferent Volumes of Serratus Posterior Superıor Intercostal Plane Block After Modıfıed Radıcal Mastectomy Surgery
Modified Radical Mastectomy, Post Operative Pain, Acute
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.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Magnesium Sulfate 750 mg with Bupivacaine 0.5% for Local Wound Infiltration and Bupivacaine 0.5% + Normal Saline in people with Modified Radical Mastectomy, run by King Hussein Cancer Center at 1 site in Jordan.
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 6 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: opening soon, as of the sponsor's last update on 31 Aug 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 Jordan. 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?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
Contact Supervisor, Clinical Trials Unit (+962 6 5300460 ext. 1342, FZahran@KHCC.JO), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Overall Postoperative Pain Burden During the First 24 Hours After Surgery (time frame: From the end of surgery through 24 hours postoperatively.). 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 NCT07789600, which also lists 10 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 31 Aug 2026.