SABER Study for Selected Early Stage Breast Cancer

NCT ID: NCT04360330

Last Updated: 2025-06-08

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

18 participants

Study Classification

INTERVENTIONAL

Study Start Date

2020-08-05

Study Completion Date

2028-05-31

Brief Summary

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The purpose of this study is to find the most effective dose of radiation therapy to give to breast tumors in a shorter period of time, prior to standard partial mastectomy/axillary surgery.

Detailed Description

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Conditions

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Breast Cancer Early-stage Breast Cancer

Study Design

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Allocation Method

NA

Intervention Model

SEQUENTIAL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Preoperative SABER

* Experimental: Preoperative Stereotactic Ablative Breast Radiotherapy (SABER). Phase I study testing up to 4 dose levels.
* Non-experimental: Participants will undergo standard partial mastectomy and axillary surgery as per discretion of treating physician 4 to 6 weeks (+ at most 1 week delay) after preoperative SABER is completed.

Group Type EXPERIMENTAL

Stereotactic Ablative Breast Radiotherapy

Intervention Type RADIATION

Preoperative SABER: Participants will be treated with an assigned dose level of preoperative SABER, delivered in once a day, 5 fractions given on non-consecutive days, over a period of 2 weeks. In this phase I study, starting with dose level II, a dose level of preoperative SABER will be assigned per study dose-escalation design, treating 2 to 6 patients per dose level. The tested doses are the following:

* Dose Level I: 35 Gy (5 fractions of 7 Gy)
* Dose Level II (Starting Dose): 40 Gy (5 fractions of 8 Gy)
* Dose Level III: 45 Gy (5 fractions of 9 Gy)
* Dose Level IV: 50 Gy (5 fractions of 10 Gy)

Interventions

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Stereotactic Ablative Breast Radiotherapy

Preoperative SABER: Participants will be treated with an assigned dose level of preoperative SABER, delivered in once a day, 5 fractions given on non-consecutive days, over a period of 2 weeks. In this phase I study, starting with dose level II, a dose level of preoperative SABER will be assigned per study dose-escalation design, treating 2 to 6 patients per dose level. The tested doses are the following:

* Dose Level I: 35 Gy (5 fractions of 7 Gy)
* Dose Level II (Starting Dose): 40 Gy (5 fractions of 8 Gy)
* Dose Level III: 45 Gy (5 fractions of 9 Gy)
* Dose Level IV: 50 Gy (5 fractions of 10 Gy)

Intervention Type RADIATION

Other Intervention Names

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SABER

Eligibility Criteria

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Inclusion Criteria

1. Female, ≥ 50 years of age.
2. Oncotype or MammaPrint diagnosis results are required prior to the start of treatment
3. Histologically confirmed invasive breast cancer.
4. Clinical stage T1N0M0.
5. Receptor status: Estrogen-Receptor (ER)/Progesterone-Receptor (PR) positive and Human Epidermal Growth Factor Receptor 2 (HER2) negative.
6. Unifocal breast cancer.
7. Eastern Cooperative Oncology Group (ECOG) 0, 1.
8. Ability to undergo MRI.
9. Women of child-bearing potential (WOCBP) must agree to use adequate contraception or agree to undergo sexual abstinence prior to study entry and for the duration of study participation. WOCBP must have a negative serum or urine pregnancy test at time of enrollment. Should a woman become pregnant or suspect she is pregnant while she is participating in this study, she should inform her treating physician immediately.
10. Ability to understand the investigational nature, potential risks and benefits of the research study and willingness to sign the written informed consent and HIPAA document(s).

Exclusion Criteria

1. Patients without histologically confirmed invasive breast cancer.
2. Patients without Oncotype or MammaPrint diagnosis results at the start of treatment.
3. Patients with metastatic disease.
4. ECOG 2, 3, 4.
5. Patients that are unable to undergo MRI.
6. Prior history of radiation to the chest.
7. History of collagenous disease (systemic lupus erythematosus, scleroderma, dermatomyositis).
8. Any serious medical or psychiatric illness/condition likely in the judgment of the Investigator(s) to interfere or limit compliance with study requirements/treatment.
9. Diagnosis of another primary malignancy within the last 5 years with the exception of non-melanoma skin cancer.
10. Patients unable to consent, who are pregnant or nursing, or are prisoners.
Minimum Eligible Age

50 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

No

Sponsors

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University of Miami

OTHER

Sponsor Role lead

Responsible Party

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Cristiane Takita

Professor of Clinical

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Cristiane Takita, MD, MBA

Role: PRINCIPAL_INVESTIGATOR

University of Miami

Locations

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University of Miami

Miami, Florida, United States

Site Status RECRUITING

Countries

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United States

Central Contacts

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Zuzel Rodriguez

Role: CONTACT

305-243-0124

Facility Contacts

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Zuzel Rodriguez

Role: primary

305-243-0124

Other Identifiers

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20190283

Identifier Type: -

Identifier Source: org_study_id

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