Science Highlights 2023: Breast Cancer

This session highlights the most clinically relevant abstracts within the Breast Cancer track of the 2023 ASTRO Annual Meeting scientific program. These noteworthy scientific abstracts share important findings and feature cutting-edge research from leaders in the field. The Discussant compares and contrasts the current data to help you digest the latest science; places the study into context; and describes how the study can be put into clinical practice, if recommended. 
Highlighted abstracts include:

  • Patient-Reported and Toxicity Results from the FABREC Study: A Multicenter Randomized Trial of Hypofractionated versus Conventionally-Fractionated Postmastectomy Radiation Therapy After Implant-Based Reconstruction
  • Hypofractionated versus conventional fractionated postmastectomy radiotherapy for patients with high-risk breast cancer: a randomised, non-inferiority, open-label, phase 3 trial 
  • Early Results of the French Multicenter, Randomized SHARE Trial Comparing Whole Breast Irradiation vs. Accelerated Partial Breast Irradiation in Postmenopausal Women with Early-Stage Breast Cancer
  • Long Term Outcomes of Radiation (RT)-Monotherapy versus Combined RT + Endocrine Therapy (RT+ET) in Low-Risk Early-Stage Breast Cancer Patients 70 Years or Older after Breast-Conserving Surgery (BCS)
  • Is it the type of axillary surgery or the number of removed lymph nodes that increases breast cancer related lymphedema? Long-Term Results from a Prospective Screening Trial
  • Risk of radiation-associated secondary malignancy among patients with breast cancer harboring TP53 germline variants
  • Limitations in the Application of Clinicopathologic Factors Alone in Predicting Radiation Benefit for Women with Low-Risk DCIS after Breast Conserving Surgery: The Impact of a 7-gene Biosignature based on 10-year Ipsilateral Breast Recurrence (IBR) Rates
  • Impact of Neoadjuvant Concurrent Chemoradiation (NACCRT) on Operability and Survival in Locally Advanced Inoperable Breast Cancer

This activity is available from January 30, 2024, through 11:59 p.m. Eastern time on December 31, 2024. 

This activity was originally recorded at the 2023 ASTRO Annual Meeting in San Diego, California.

Target Audience

The activity is designed to meet the interests of radiation oncologists, radiation oncology residents, physicists and radiation dosimetrists. 

Learning Objectives

Upon completion of this activity, participants should be able to:

  • Gain knowledge of the use and technique of radiation therapy for breast cancers 
  • Assess selected randomized and comparative trials in breast cancer  
Course summary
Available credit: 
  • 0.50 Certificate of Attendance
    This activity was designated for 0.50 AMA PRA Category 1 Credit™.
Course opens: 
Course expires: 

Discussant: Kathryn Huber, MD, PhD, Tufts University Medical Center

  • No commercial disclosures or affiliation with presented abstracts 

The person(s) above served as the developer(s) of this activity. Additionally, the Education Committee had control over the content of this activity. All relevant relationships have been mitigated.

The American Society for Radiation Oncology (ASTRO) is accredited by the Accreditation Council of Continuing Medical Education to provide continuing education to physicians.

ASTRO is awarded Deemed Status by the American Board of Radiology to provide SA-CME as part of Part II Maintenance of Certification. 

Available Credit

  • 0.50 Certificate of Attendance
    This activity was designated for 0.50 AMA PRA Category 1 Credit™.


Please login or register to take this course.

Course Fees:
ASTRO members must log in to the ASTRO website to view and receive the free member rate.

Nonmember: $79
Member: Free 

No refunds, extensions, or substitutions will be made for those participants who, for any reason, have not completed the course by the end of the qualification date. The qualification date for each course is listed in the course catalog on the ASTRO website under availability.

Participants using ASTRO's online courses to satisfy the requirement of a Maintenance of Certification (MOC) program should verify the number, type and availability dates of any course before making a purchase. No refunds, extensions, or substitutions will be made for participants who have purchased courses that do not align with their MOC requirement.

The course and its materials will only be available on the ASTRO website until December 31, 2024, regardless of purchase date. At the expiration of the qualification, participants will no longer have access to the course or its materials. ASTRO reserves the right to remove a course before the end of its qualification period.

Required Hardware/software

One of the two latest versions of Google Chrome, Mozilla Firefox, Internet Explorer or Safari.