RAD 1802: Pilot Trial of Five Fraction Stereotactic Body Radiotherapy for Early Stage Breast Cancer Patients Eligible for Post-Operative Accelerated Partial Breast Irradiation (APBI)

October 29, 2025 updated by: Drexell Hunter Boggs, University of Alabama at Birmingham

RAD 1802: A Pilot Trial of Five Fraction Stereotactic Body Radiotherapy for Early Stage Breast Cancer Patients Eligible for Post-Operative Accelerated Partial Breast Irradiation (APBI)

This study offers 5 fractions of radiation treatment through partial breast irradiation in patients with early stage breast cancer after having a lumpectomy.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

This study offers 5 fractions stereotactic body radiotherapy for early stage breast cancer after patient undergoes a lumpectomy. The study aims to determine the safety and feasibility of delivering only 5 doses of radiation treatment rather than the longer schedule of treatments that is currently considered standard of care for breast cancer patients. Patients will be followed for 36 months (2 years) with follow-up appointments at 6, 12, 18, 24, and 36 months.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
40

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Contact Backup

Study Locations

  • United States
    • Alabama
      • Birmingham, Alabama, United States, 35233
        • Recruiting
        • University of Alabama at Birmingham (UAB) Hazelrig-Salter Radiation Oncology Center (HSROC)

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years to 99 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Pathologically proven invasive mammary carcinoma, Invasive ductal carcinoma (IDC) or ductal carcinoma in situ (DCIS) of the breast. Medullary, papillary, mucinous (colloid) and tubular histologies are allowed.
  • Age>50.
  • Maximum pathologic tumor size <2.0cm if invasive carcinoma or < 2.5cm if pure DCIS.
  • Estrogen receptor (ER) positive (>10%).
  • Must be eligible for breast conservation therapy and receive a lumpectomy with pathologic margins of at least 2mm.
  • Must be clinically node negative by physical examination. Sentinel node dissection is not required, but if undertaken, the patient must be pathologically node negative.
  • Zubrod Performance Status 0-2.

Exclusion Criteria:

  • Multifocal or multicentric cancer.
  • Reception of neoadjuvant chemotherapy.
  • Pure invasive lobular histology.
  • Inability to clearly delineate lumpectomy cavity on post lumpectomy planning scan.
  • Measured maximum PTV of >124cc.
  • Lumpectomy cavity within 5mm of body contour.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: 5 Fraction Breast Stereotactic Body Radiation Therapy
This study will enroll patients that have a confirmed histology of early stage breast cancer. The patient will undergo a lumpectomy and will then receive partial breast 5 fractions stereotactic body radiation therapy at a dose of 6 gy for 5 fractions for treatment. Patients will be followed for 36 total months with specific follow-ups at 3, 6, 9, 12, 18, 24, and 36 months.
Radiation: 5 Fraction Stereotactic Body Radiation Therapy
Stereotactic body radiation therapy (SBRT) has gained favor in the treatment of select central nervous system, lung, and abdominal malignancies due to its ability to deliver highly conformal doses of radiotherapy while using sharp dose gradients to deliver comparatively lower doses to the surrounding normal tissue. Utilization of SBRT is more labor intensive than conventional fractionation and requires precise immobilization and localization techniques with daily image guidance with direct physician and physicist oversight for all treatments. While more labor intensive and often utilizing more advanced technologies, SBRT allows the advantage of reducing setup margins compared to conventionally fractionated treatment while being able to shorten overall treatment times due to the ability to safely dose escalate high risk areas

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Toxicity levels of 5 fractions SBRT for partial breast irradiation assessed by CTCAE v4.0
Time Frame: 0-2 years
To determine the safety of 5 fractions SBRT for patients with early stage breast cancer after a lumpectomy. Safety will be determined by CTCAE v4.0 and access toxicity, or lack of, experienced by patients enrolled in this study.
0-2 years

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Toxicity of breast SBRT using CTCAE v4.0
Time Frame: 0-2 years
To define the acute (<90 days) and late toxicity (>90 days) up to two years after breast SBRT (CTCAE 4) attributable to therapy.
0-2 years
Cosmetic outcome baseline and post-SBRT
Time Frame: 0-2 years
To determine patient and nurse assessed cosmetic outcome at baseline and 1, 6, 12, 18, 24, and 36 months post SBRT. Patient will give a verbal satisfaction rating of 1-Excellent, 2-Good, 3-Fair, or 4-Poor of their cosmetic appearance post-SBRT. Nurse will also give their overall rating of 1-Excellent, 2-Good, 3-Fair, or 4-Poor based off of their examination of the cosmetic appearance post-SBRT.
0-2 years
Patient reported outcome baseline and post-SBRT
Time Frame: 0-2 years
To determine patient reported outcome at baseline and 1, 6, 12, 18, 24, and 36 months post SBRT. The Quality of Life Breast Cancer Questionnaire (QLQ-BR45) is a 45-item questionnaire is composed of 45 questions with scale of 4 options where 1 represents "not at all" to 4 "very much". Scores on the QLQ-BR45 range from 45 to 180, with a lower score representing a higher quality of life.
0-2 years

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
University of Alabama at Birmingham

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
Varian Medical Systems

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: D. Hunter Boggs, MD, University of Alabama at Birmingham

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
August 20, 2019

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
December 1, 2027

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
December 1, 2028

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
August 17, 2018

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
August 21, 2018

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
August 23, 2018

Study Record Updates

Last Update Posted (Estimated)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
October 31, 2025

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
October 29, 2025

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
October 1, 2025

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • IRB-300002157
  • 000521633 (Other Grant/Funding Number: Varian Medical Systems)

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

UNDECIDED

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

Yes

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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