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Life sciences · Interventional Study
ClinicalTrials.gov · November 6, 2026
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Interventional Study.
No findings were extractable from the material analysed.
Safety was not reported in the material analysed. Check the source before drawing any conclusion about harm.
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Registry record from ClinicalTrials.gov (NCT04933266). This is a study registration, not published results. Lead sponsor: Chinese University of Hong Kong. Recruitment status: TERMINATED. Phase: NA. Study type: INTERVENTIONAL. Enrollment: 100 participants (ACTUAL). Conditions: Breast Cancer. Interventions: PROCEDURE: Subpectoral plexus block (low dose); PROCEDURE: Subpectoral plexus block (High dose). Primary outcome measures: Proportion of patients requiring intraoperative ketamine , during surgery. Brief summary: The objective of this study is to compare two different doses of local anesthetics (10ml vs 20ml of 0.25% levobupivacaine) for subpectoral plexus block (SPPB) in addition to ultrasound guided multi-level of thoracic paravertebral block (m-TPVB) for surgical anaesthesia for major primary breast cancer surgery.