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RecruitingNCT07891039Updated Oct 23, 2026

ESP Blocks in Breast Free Flaps

A Phase 1 interventional study of Bupivacaine with Epinephrine and Dexamethasone in Breast Reconstruction and Free Flap Reconstruction, sponsored by Carilion Clinic. Recruiting at 1 site in United States. Open to female participants aged 18 Years to 75 Years. Per ClinicalTrials.gov, last updated 2026-10-23.

Sponsored by Carilion Clinic · Phase 1, Interventional, and Treatment

Updated Oct 23, 2026Newly registeredGo to Updates ↓
Phase
Phase 1
Study type
Interventional
Enrollment
60
Allocation
Randomized
Ages
18 Years to 75 Years
Sex
Female
01

Study summary

This study is a prospective randomized controlled trial to assess the efficacy of erector spinae plane (ESP) blocks in patients undergoing autologous free flap breast reconstruction. Currently, patients undergoing this procedure remain in the hospital initially for flap monitoring until discharge criteria is met, when pain is adequately controlled and patient is able to ambulate independently. Prolonged hospital stays can occur due to persistent pain, typically abdominal pain as breasts are insensate following mastectomy. Persistent pain at abdominal incision can increase opioid requirements, impede ambulation trials, and delay discharge. This study aims to utilize ESP blocks to help augment pain control in patients undergoing autologous free flap breast reconstruction. The ESP block is a safe regional block that is already commonly utilized by multiple surgical specialties, such as general surgery, obstetrics and gynecology, cardiothoracic surgery, neurosurgery, and orthopedic surgery. The ESP block is an ultrasound-guided regional anesthesia technique where a local anesthetic is injected into the fascial plane between the erector spinae muscles and the thoracic vertebrae's transverse processes. This injection spreads longitudinally, blocking the spinal nerves and providing multi-dermatomal pain relief to the anterior, posterior, and lateral chest and abdominal walls, making it useful for surgeries and managing chronic pain. Patients in this study will be randomized into one of two groups, ESP block or No ESP (NESP) block group. The investigators will not be blinding patients to their study arm assignment, as this would require injecting placebo which the investigators believe would be an unnecessary risk to patient. Additionally, it was determined that it would not be feasible to blind patients as the ESP block participants would be numb in their abdomen and patients would immediately know whether or not they received the block. Participants will be informed of their study arm assignment on the day of surgery prior to proceeding to the operating room. Patients will then be asked to fill out a twice daily survey on pain and ambulation trials. Inpatient data on pain medication administration and time to discharge will be collected through chart review. This study aims to investigate the efficacy of ESP blocks to improve management of pain at abdominal incision, decrease inpatient opioid consumption, decrease time to ambulation, and decrease length of stay.

02

Conditions studied

  • Breast Reconstruction
  • Free Flap Reconstruction

Keywords

  • ESP Block
03

In context

Lead sponsor

Carilion Clinic is the lead sponsor of 75 studies on the registry; 14 are open to participants now.

Of its 9 completed or terminated interventional studies of FDA-regulated products, 2 (22%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 75 Years
Sexes eligible
Female
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Diagnosis of breast cancer
  • Undergoing abdominally based autologous free flap breast reconstruction
  • Age 18-75
  • BMI \<40
  • Must be able to consent for themself

Exclusion criteria

Exclusion Criteria:

  • Weight \<50 kg
  • Pre-existing opioid dependence
  • Infection at site of ESP block injection
  • Allergy to local anesthetic
  • Coagulopathy disorder
  • Pregnant
  • Significant liver impairment (Child-Pugh class 3)
05

Study design

Phase
Phase 1
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
60 participants (estimated)

Study arms

  • Experimental
    ESP Block

    Patients will receive ESP block, as well as standard of care/pain medications

    Drug: Bupivacaine with Epinephrine and Dexamethasone

  • No intervention
    No Block

    Patients will not receive ESP block, but only standard of care/pain medications

Interventions

  • DrugBupivacaine with Epinephrine and Dexamethasone

    Drug pages: Bupivacaine · Epinephrine · Dexamethasone

    ESP block = 20ml 0.25% Bupivacaine w/ 5mcg/ml Epinephrine + 4mg Dexamethasone. Administered by qualified anesthesiologist under ultrasound guidance.

06

What researchers measure

Primary outcomes

  1. Inpatient pain control

    Total MME while inpatient

    Time frame: 3-7 days

Secondary outcomes

  1. Subjective Pain Level

    Patient reported pain score on scale of 1-10. Surveys administered twice daily (AM/PM) while inpatient.

    Time frame: 3-7 days

  2. Ambulation

    Patient reported ambulation. Also obtained from patient survey administered twice daily (AM/PM).

    Time frame: 3-7 days

  3. Length of Stay

    Total days of admission after surgery.

    Time frame: 3-7 days

07

Study locations

1 of 1 sites recruiting
  • Roanoke Memorial Hospital
    Roanoke, Virginia 24014, United States
    Recruiting
08

References and documents

Publications

  • Tsui BCH, Fonseca A, Munshey F, McFadyen G, Caruso TJ. The erector spinae plane (ESP) block: A pooled review of 242 cases. J Clin Anesth. 2019 Mar;53:29-34. doi: 10.1016/j.jclinane.2018.09.036. Epub 2018 Oct 3. PubMed 30292068 ↗
  • Pai B H P, Lai YH. Feasibility and Efficacy of Low Thoracic Ultrasound-Guided Erector Spinae Plane Blocks in Patients Undergoing Radical Total Mastectomy With Deep Inferior Epigastric Perforator Flap Reconstruction. Ann Plast Surg. 2022 Dec 1;89(6):656-659. doi: 10.1097/SAP.0000000000003290. Epub 2022 Oct 17. PubMed 36416694 ↗
  • Park S, Park J, Choi JW, Bang YJ, Oh EJ, Park J, Hong KY, Sim WS. The efficacy of ultrasound-guided erector spinae plane block after mastectomy and immediate breast reconstruction with a tissue expander: a randomized clinical trial. Korean J Pain. 2021 Jan 1;34(1):106-113. doi: 10.3344/kjp.2021.34.1.106. PubMed 33380573 ↗
  • ElHawary H, Abdelhamid K, Meng F, Janis JE. Erector Spinae Plane Block Decreases Pain and Opioid Consumption in Breast Surgery: Systematic Review. Plast Reconstr Surg Glob Open. 2019 Nov 20;7(11):e2525. doi: 10.1097/GOX.0000000000002525. eCollection 2019 Nov. PubMed 31942313 ↗
  • Araya S, Webster TK, Egleston B, Amadio GM, Panichella JC, Elmer NA, Patel SA. Significant Reduction in Length of Stay in Deep Inferior Epigastric Perforator Flap Breast Reconstruction With Implementation of Multimodal ERAS Protocol. Ann Plast Surg. 2023 Jul 1;91(1):90-95. doi: 10.1097/SAP.0000000000003578. PubMed 37450866 ↗

Study documents

  • Protocol and statistical analysis plan · Feb 3, 2026
  • Informed consent form · Feb 9, 2026

Documents are hosted by the registry — open the source record to download them.

Individual participant data

Plan to share: No — Individual participant data will not be shared with other researchers due to concerns regarding participant confidentiality and data privacy, as well as limitations related to the study's data-sharing infrastructure and resources. Study findings will be disseminated through peer-reviewed publications and other appropriate scientific communications.

09

Updates

1 registry update since Sep 25, 2026
Registered
First appeared on the registry. No changes since
Oct 23, 2026
Show all 1 update
  1. Oct 23, 2026
    First appeared on the registry

From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗

10

Registry details

Key details

Study ID
NCT07891039
Lead sponsor
Carilion Clinic
Responsible party
Matthew Joy MD (Director, Lymphatic and Microsurgical Reconstruction, Carilion Clinic) — Principal investigator
First posted
Oct 23, 2026
Start date
Oct 1, 2026
Primary completion
Jun 30, 2028 (estimated)
Completion
Jun 30, 2028 (estimated)
Last update
Oct 23, 2026

Study contacts

Joowon Choi, MD
Contact
jmchoi@carilionclinic.org
540-682-6695

Oversight

Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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Studies of the drugs tested here: Bupivacaine · Epinephrine · Dexamethasone

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