๐Ÿ›๏ธ Verified NIH Record โ€ข Updated 2026-04-22

Testing Radiation and HER2-targeted Therapy Versus HER2-targeted Therapy Alone for Low-risk HER2-positive Breast Cancer (NCT05705401)

A Phase III Randomized Trial of Radiotherapy Optimization for Low-Risk HER2-Positive Breast Cancer (HERO)

๐Ÿ”ต Active, Not Recruiting Phase3 ๐Ÿ’Š Investigational Drug / Biologic Sponsor: NRG Oncology

๐Ÿฉบ Plain-English Summary (8th-Grade Level)

This Phase III trial compares the recurrence-free interval (RFI) among patients with early-stage, low risk HER2+ breast cancer who undergo breast conserving surgery and receive HER2-directed therapy, and are randomized to not receive adjuvant breast radiotherapy versus those who are randomized to receive adjuvant radiotherapy per the standard of care.

Who can join: Review the eligibility criteria below.

Location: Cancer Center at Saint Joseph's โ€” Phoenix, Arizona

Age range: 40 Years

๐Ÿ“‹ "Do I Qualify?" โ€” 1-Minute Self Screener

Instant Checklist

Full eligibility criteria are available on the official NIH protocol. View the criteria โ†—

๐Ÿ“ All Participating Trial Locations (418 Sites)

Showing the first 25 of 418 sites.

  • Cancer Center at Saint Joseph's โ€” Phoenix, Arizona
  • Banner University Medical Center - Tucson โ€” Tucson, Arizona
  • University of Arizona Cancer Center-North Campus โ€” Tucson, Arizona
  • NEA Baptist Memorial Hospital and Fowler Family Cancer Center - Jonesboro โ€” Jonesboro, Arkansas
  • Kaiser Permanente-Deer Valley Medical Center โ€” Antioch, California
  • Mission Hope Medical Oncology - Arroyo Grande โ€” Arroyo Grande, California
  • PCR Oncology โ€” Arroyo Grande, California
  • Sutter Auburn Faith Hospital โ€” Auburn, California
  • Sutter Cancer Centers Radiation Oncology Services-Auburn โ€” Auburn, California
  • Tower Cancer Research Foundation โ€” Beverly Hills, California
  • Sutter Cancer Centers Radiation Oncology Services-Cameron Park โ€” Cameron Park, California
  • City of Hope Comprehensive Cancer Center โ€” Duarte, California
  • Kaiser Permanente Dublin โ€” Dublin, California
  • Kaiser Permanente-Fremont โ€” Fremont, California
  • Palo Alto Medical Foundation-Fremont โ€” Fremont, California
  • Fresno Cancer Center โ€” Fresno, California
  • Kaiser Permanente-Fresno โ€” Fresno, California
  • UCI Health - Chao Family Comprehensive Cancer Center and Ambulatory Care โ€” Irvine, California
  • City of Hope at Irvine Lennar โ€” Irvine, California
  • City of Hope Antelope Valley โ€” Lancaster, California
  • Los Angeles General Medical Center โ€” Los Angeles, California
  • USC / Norris Comprehensive Cancer Center โ€” Los Angeles, California
  • Cedars Sinai Medical Center โ€” Los Angeles, California
  • Memorial Medical Center โ€” Modesto, California
  • Kaiser Permanente-Modesto โ€” Modesto, California

๐Ÿ’ฐ Cost, Insurance & Patient Rights

  • 100% Free Items: The investigational treatment and protocol-required procedures are supplied at zero cost by the sponsor.
  • Routine Patient Care: Under federal law (ACA ยง 2709) and many state statutes, routine care costs are covered during participation.
  • Voluntary Participation: You may withdraw at any time without affecting your standard medical care.

๐Ÿ’ก How to Participate

  1. Check the checklist above to see if you may qualify.
  2. Review the official NIH record below to find the coordinating site.
  3. Ask about the visit schedule, what is covered at no cost, and any travel support.
  4. Confirm with your own doctor before making a decision.
๐Ÿ›๏ธ View Official NIH Record โ†—