Clinical trial Recruiting at 1 site Phase 4 Interventional Ages 18 and up

Comparing two nerve-block options to reduce pain after total mastectomy.

Official title: Post-mastectomy Recovery: A Randomized Clinical Trial Comparing Preoperative PECS-II Blocks With Intraoperative Pectoral Blocks

Run by University of Cincinnati · NCT06574022 · Data updated 2026-11-12

This test tries whether a PECS-II block given before surgery or a pectoral block given during surgery, using bupivacaine or liposomal bupivacaine, provides better pain control after total mastectomy for breast cancer or high-risk patients.

Quick facts

PhasePhase 4
Study typeInterventional
Ages18 Years and up
SexAll
Enrollment100 (estimated)
SponsorUniversity of Cincinnati
Academic / other
Locations1 site (Cincinnati, Ohio)
StatusRecruiting
StartedSeptember 25, 2024
Main results expectedAugust 1, 2026
Study endsDecember 1, 2026
Registry record updatedNovember 4, 2025
Trial IDNCT06574022 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adults aged 18 or older scheduled for total mastectomy for breast cancer or high cancer risk at the University of Cincinnati Medical Center are the intended participants.

Probably not a fit

Patients undergoing only partial mastectomy or tissue-based reconstruction, those who are pregnant, non-English speaking, allergic to local anesthetics, or on recent opioid prescriptions are unlikely to qualify or benefit from this comparison.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This phase 4 interventional trial at the University of Cincinnati compares preoperative PECS-II nerve blocks with intraoperative pectoral blocks for people undergoing total mastectomy. Participants receive standard-of-care local anesthetics (bupivacaine or liposomal bupivacaine) with the assigned block technique. The main outcomes are postoperative pain control and opioid use during recovery. The protocol includes adults having total mastectomy with or without axillary surgery or reconstruction at the study site.

Why it matters

Potential benefit: If successful, patients could have better immediate and longer-lasting pain relief after mastectomy and require fewer opioid pain medications.

How similar studies have gone: Previous trials have shown PECS and pectoral blocks and liposomal bupivacaine can reduce postoperative pain and opioid use, but direct head-to-head comparisons of preoperative versus intraoperative timing remain limited.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Patients who are 18 years of age or older
* Patients undergoing mastectomy with or without axillary surgery, with or without reconstruction surgery at UCMC for breast cancer or high-risk of breast cancer. Patients with high-risk of breast cancer are those who have atypical/precancerous breast lesion(s), genetic mutation with increased risk of cancer (e.g., BRCA1, BRCA2 etc..) and/or a strong family history of breast cancer in the opinion of the investigator.

Exclusion Criteria:

* Patients undergoing only a partial mastectomy or tissue-based reconstruction.
* Non-English speaking.
* Patients who are pregnant.
* Patients with an allergy to local anesthetics
* Except: patients with allergies only to topical anesthetics may be included.
* Patients with a preoperative acute or chronic pain disorder with an opioid prescription that has been prescribed within 30 days of surgery. Patients who have not filled such a prescription or who state they have not taken the medications prescribed, may be eligible on a case-by-case basis per investigator judgement.
* Patients with a history of opioid use disorder.
* Inability to provide informed consent.
* Patients who otherwise in the opinion of the Investigator are not good candidates for participation (e.g., deemed unreliable for follow-up).

Where it's running

  • University of Cincinnati Medical Center
    Cincinnati, Ohio, United States
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 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.