An interventional study of Magnesium Sulfate 750 mg with Bupivacaine 0.5% for Local Wound Infiltration and Bupivacaine 0.5% + Normal Saline in Modified Radical Mastectomy, sponsored by King Hussein Cancer Center. Not yet recruiting at 1 site in Jordan. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-08-31.
Sponsored by King Hussein Cancer Center · Not applicable, Interventional, and Supportive care
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.
King Hussein Cancer Center is the lead sponsor of 23 studies on the registry; 7 are open to participants now.
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Exclusion Criteria:
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.
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.
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
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.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Informed consent
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
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.
Drug: Magnesium Sulfate 750 mg with Bupivacaine 0.5% for Local Wound Infiltration
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.
Drug: Bupivacaine 0.5% + Normal Saline
Drug page: Magnesium Sulfate
Magnesium sulfate 750 mg added to 0.5% bupivacaine for a single intraoperative local wound infiltration following modified radical mastectomy with axillary clearance.
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.
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.
Time frame: From the end of surgery through 24 hours postoperatively.
This study is not yet recruiting, as verified in Aug 2026. You cannot join it, but the record below documents what was studied.
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Studies of the drug tested here: Magnesium Sulfate
King Hussein Cancer Center