Cryoablation vs Lumpectomy in T1 Breast Cancers

NCT ID: NCT05505643

Last Updated: 2025-07-24

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

NA

Total Enrollment

120 participants

Study Classification

INTERVENTIONAL

Study Start Date

2024-04-03

Study Completion Date

2033-04-30

Brief Summary

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This trial studies the efficacy and safety of cryoablation in patients with low risk, early stage breast cancer. Cryoablation is a method of killing a tumor by freezing it. The standard approach for patients with this kind of cancer is a lumpectomy. This study will review the safety of the cryoablation procedure initially, followed by comparing cryoablation to lumpectomy in order to see if the cryoablation results in better disease control, complication rates, and quality of life.

Detailed Description

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Conditions

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Breast Cancer Breast Neoplasm

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

The initial 20 participants will be enrolled to a safety lead-in arm receiving cryoablation. The next 100 participants will be randomized in a 1:1 manner to either cryoablation or lumpectomy. Patients initially treated with cryoablation who have evidence of residual or recurrent tumor on follow-up imaging will be crossed over to receive a rescue lumpectomy.
Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Cryoablation

Patients will be treated with cryoablation using the Endocare SlimLine Cyroprobe under real time ultrasound guidance and local anesthesia. The cryoablation consists of a 10 minute freeze phase followed by a 10 minute passive thaw, and ends with a second 10 minute freeze cycle. The freeze-thaw-freeze times may be adjusted at the physician's discretion depending on tumor size.

Group Type EXPERIMENTAL

Endocare SlimLine Cryoprobe

Intervention Type DEVICE

The Endocare(TM) SlimLine (TM) Cryoprobe is a single use, disposable device designed for use with Endocare Cryocare Surgical Systems. Endocare cryoprobes are designed to deliver cold temperatures for cryoablation using high-pressure argon gas circulated through the cryoprobe, followed by active thawing using helium gas.

The Cryocare CS Surgical System is intended for use in open, minimally invasive, or endoscopic surgical procedures in the areas of general surgery, urology, gynecology, oncology, neurology, dermatology, ENT, proctology, pulmonary surgery, and thoracic surgery. The system is designed to freeze/ablate tissue by the application of extreme cold temperatures.

Lumpectomy

Lumpectomy will be performed under general anesthesia as per standard operative procedures at Washington University and Siteman Cancer Center.

Group Type ACTIVE_COMPARATOR

Lumpectomy

Intervention Type PROCEDURE

Patients randomized to cryoablation who experience disease recurrence may undergo crossover to lumpectomy.

Rescue Arm: Lumpectomy

If there is evidence of residual or recurrent tumor on follow-up imaging evaluation (6 month MRI (if can tolerate) and yearly MRI/mammography), patients in the cryoablation safety lead-in and who were randomized to receive cryoablation only will be crossed over to receive a rescue lumpectomy followed by adjuvant treatment based on standard of care.

Group Type OTHER

Lumpectomy

Intervention Type PROCEDURE

Patients randomized to cryoablation who experience disease recurrence may undergo crossover to lumpectomy.

Cryoablation - Safety Lead In

Patients will be treated with cryoablation (Day 1) using the Endocare SlimLine Cyroprobe followed by adjuvant treatment.

Group Type EXPERIMENTAL

Endocare SlimLine Cryoprobe

Intervention Type DEVICE

The Endocare(TM) SlimLine (TM) Cryoprobe is a single use, disposable device designed for use with Endocare Cryocare Surgical Systems. Endocare cryoprobes are designed to deliver cold temperatures for cryoablation using high-pressure argon gas circulated through the cryoprobe, followed by active thawing using helium gas.

The Cryocare CS Surgical System is intended for use in open, minimally invasive, or endoscopic surgical procedures in the areas of general surgery, urology, gynecology, oncology, neurology, dermatology, ENT, proctology, pulmonary surgery, and thoracic surgery. The system is designed to freeze/ablate tissue by the application of extreme cold temperatures.

Interventions

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Endocare SlimLine Cryoprobe

The Endocare(TM) SlimLine (TM) Cryoprobe is a single use, disposable device designed for use with Endocare Cryocare Surgical Systems. Endocare cryoprobes are designed to deliver cold temperatures for cryoablation using high-pressure argon gas circulated through the cryoprobe, followed by active thawing using helium gas.

The Cryocare CS Surgical System is intended for use in open, minimally invasive, or endoscopic surgical procedures in the areas of general surgery, urology, gynecology, oncology, neurology, dermatology, ENT, proctology, pulmonary surgery, and thoracic surgery. The system is designed to freeze/ablate tissue by the application of extreme cold temperatures.

Intervention Type DEVICE

Lumpectomy

Patients randomized to cryoablation who experience disease recurrence may undergo crossover to lumpectomy.

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

* Diagnosis of invasive ductal carcinoma of the breast (ER , Her-2 negative) that is grade 1 or 2 with intraductal component \<25%. Must be T1N0M0 (2 cm or less).
* If DCIS is present in the biopsy specimen it should be \<25% of the tumor and should be contiguous with the IDC. (i.e. DCIS should not be a separate tumor from the IDC).
* Oncotyping will be performed on T1b+Allred\<6/8 and T1c tumors. Oncotype score in this subset of patients must be \<26 to be included in the trial.
* At least 50 years of age.
* Mass must be visible on ultrasound and \>5 mm from skin and chest wall muscles.
* Able to understand and willing to sign an IRB-approved written informed consent document.

Exclusion Criteria

* Indication for neoadjuvant chemotherapy.
* Prior history of breast cancer.
* Breast augmentation.
* Allergy to local anesthetics.
* Pregnant or lactating. Women of childbearing potential must have a negative pregnancy test within 14 days of study entry.
* Positive axillary lymph nodes as assessed by axillary ultrasound, axillary sampling, or axillary sentinel node procedure.
Minimum Eligible Age

50 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

No

Sponsors

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The Foundation for Barnes-Jewish Hospital

OTHER

Sponsor Role collaborator

Varian Medical Systems

INDUSTRY

Sponsor Role collaborator

Washington University School of Medicine

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Heather Garrett, M.D.

Role: PRINCIPAL_INVESTIGATOR

Washington University School of Medicine

Locations

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Washington University School of Medicine

St Louis, Missouri, United States

Site Status RECRUITING

Countries

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United States

Central Contacts

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Heather Garrett, M.D.

Role: CONTACT

636-916-9662

Facility Contacts

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Heather Garrett, M.D.

Role: primary

636-916-9662

Related Links

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http://www.siteman.wustl.edu

Alvin J. Siteman Cancer Center at Barnes-Jewish Hospital and Washington University School of Medicine

Other Identifiers

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202302017

Identifier Type: -

Identifier Source: org_study_id

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