A Phase 4 interventional study of Marcaine 0.25 % Injectable Solution and Saline in Macromastia and Post-operative Pain, sponsored by Connecticut Children's Medical Center. Completed at 2 sites in United States. Open to participants aged 13 Years to 25 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-07-31.
Sponsored by Connecticut Children's Medical Center · Phase 4, Interventional, and Treatment
The main question this randomized control trial aims to answer is:
Participants will be randomized into the study group that intraoperatively receives 30cc of subpectoral bupivacaine injections or into the control group that intraoperatively receives 30cc of injectable saline subpectorally. All participants will keep a pain log and pain medication log at home for the first week following surgery.
Researchers will compare to see if patients who receive subpectoral bupivacaine have lower pain scores in the PACU, and lower use of narcotics post-operatively when compared to the control group who receive injectable saline.
Exclusion Criteria:
Participants in this group will receive 20cc of subpectoral bupivacaine injected into the fascia
Drug: Marcaine 0.25 % Injectable Solution
Participants in this group will receive 20cc of subpectoral saline injected into the fascia
Drug: Saline
Patients in this arm will receive an injection of 20cc of injectable 0.25% bupivacaine solution. It will be injected in a fan-like pattern beneath the pectoralis fascia
Also known as: bupivacaine 0.25% injectable solution
Patients in this arm will receive an injection of 20cc of injectable saline. It will be injected in a fan-like pattern beneath the pectoralis fascia
Also known as: injectable saline
Patient Reported Pain Score
Post-operative pain score will be patient reported on a rating scale of 1-10. This will be recorded by the PACU nurse upon admission and upon discharge from the PACU. Patients will subsequently record a daily pain score in a home log daily until their 1 week follow-up visit. Scores will be recorded using the home log provided by the patient. We will also utilize chart review to record PACU pain score from the immediate post-operative time period.
Time frame: Measured on day of surgery
Demographics
Demographics including age, race, ethnicity will be collected and recorded for all patients approached to enter the study.
Time frame: Recorded when patient is enrolled
Total Amount of Narcotic Use
Narcotic use will be determined by chart review of the PACU record. The amount of narcotic pain medication will be recorded for each patient. Prescription narcotic use upon discharge will be patient-reported in their patient log.
Time frame: Measured up until 4 weeks post-op
Days to Return to full activity
Return to full activity- will be categorized as returning to school, returning to light activity, or returning to full activity/heavy exercise.
Time frame: Measured for 4 weeks post-op
Length of stay in post-anesthesia care unit (hours)
Length of stay in post-anesthesia care unit will be determined by chart review from time entering the PACU to time of discharge from the hospital.
Time frame: Measured on day of surgery
Plan to share: Yes — The research team is comprised of the medical providers caring for these patients. The study information will be collected and stored on the secure hospital server, password protected.
Supporting information: Study protocol, Sap, Icf, Csr, Analytic code
This study is completed, as verified in Jul 2026. You cannot join it, but the record below documents what was studied.
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Gigantomastia
Connecticut Children's Medical Center