Dexamethasone for post-mastectomy chronic pain

Does the Perioperative Administration of Dexamethasone Increase the Incidence of Chronic Postmastectomy Pain? A Double-blind Randomized Controlled Trial

Phase 4 Interventional McGill University Health Centre/Research Institute of the McGill University Health Centre · NCT07556952

This trial will test whether giving dexamethasone during mastectomy lessens long-term post-mastectomy chronic pain in adult women.

Quick facts

PhasePhase 4
Study typeInterventional
Enrollment170 (estimated)
Ages18 Years to 75 Years
SexFemale
SponsorMcGill University Health Centre/Research Institute of the McGill University Health Centre Academic / other
Locations1 site (Montreal, Quebec)
Trial IDNCT07556952 on ClinicalTrials.gov

What this trial studies

This Phase 4 interventional study enrolls adult women (18–75) undergoing unilateral or bilateral mastectomy at the McGill University Health Centre. Participants are assigned to receive a perioperative intravenous dose of dexamethasone or an intravenous normal saline comparator and are followed for pain outcomes after the expected healing period. The protocol excludes patients with pre-existing chronic pain, chronic corticosteroid or opioid use, recent breast surgery, pregnancy or breastfeeding, and those with contraindications to dexamethasone. Outcomes focus on the presence and severity of chronic post-mastectomy pain and its impact on function and quality of life.

Who should consider this trial

Good fit: Women aged 18–75 who can consent and are scheduled for unilateral or bilateral mastectomy (with or without lymph node dissection or immediate reconstruction) and have ASA physical status I–III are ideal candidates.

Not a fit: Men, patients with pre-existing chronic pain, chronic opioid or corticosteroid use, recent breast surgery, pregnancy/breastfeeding, or contraindications to dexamethasone are unlikely to benefit from participation.

Why it matters

Potential benefit: If successful, perioperative dexamethasone could reduce the incidence or severity of chronic pain after mastectomy and improve patients' long-term function and quality of life.

How similar studies have performed: Observational studies have suggested a link between perioperative dexamethasone and altered post-surgical pain outcomes, but randomized data specifically addressing chronic post-mastectomy pain are limited.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Female patients aged 18-75 years who can provide consent
* undergoing unilateral or bilateral mastectomy
* with or without lymph node dissection and/or immediate reconstruction,
* ASA physical status I-III.

Exclusion Criteria:

* Male sex;
* pre-existing chronic pain conditions;
* chronic opioid use;
* pregnancy or breastfeeding;
* breast surgery within the last three years;
* chronic corticosteroid therapy;
* contraindications to dexamethasone.

Where this trial is running

Montreal, Quebec

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Post-Mastectomy Chronic Pain Syndromedexamethasonemastectomychronic painpost-operative
Last reviewed 2026-06-09 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.