This trial is part of a larger, longitudinal study of symptoms that occur in the breast surgical scar area and/or ipsilateral arm following breast cancer surgery. Women who develop pain in the breast scar area or ipsilateral arm will be randomized to a placebo patch or a lidocaine patch that they will wear on a daily basis for 12 weeks. We hypothesize that women who wear the lidocaine patch will report a decrease in pain and decreased interference with function compared to women who wear the placebo patch.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
SUPPORTIVE_CARE
Masking
DOUBLE
Enrollment
21
1 patch was applied topically to the affected site(s) for 12 hours each day.
1 patch was applied topically to the affected site(s) for 12 hours each day.
UCSF Comprehensive Cancer Center
San Francisco, California, United States
Change in Pain Intensity on an 11-point Scale From Baseline to 12 Weeks
Patients scored their pain intensity in the breast and/or ipsilateral arm using a 0 to 10 numeric rating scale, ranging from no pain (0) to worst pain imaginable (10). The change in pain intensity was calculated from two time points as the later time point (12 weeks) minus the earlier time point (Baseline).
Time frame: Baseline, 12 weeks
Pain Interference With Function
Time frame: 12 weeks
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