πŸ›οΈ Verified NIH Record β€’ Updated 2026-07-03

A Randomized Trial of Five Fraction Partial Breast Irradiation (RAPID2) (NCT05417516)

A Randomized Trial of Five-Fraction Partial Breast Irradiation (RAPID2)

🟒 Recruiting Phase3 πŸ“‹ Clinical Research Protocol Sponsor: Ontario Clinical Oncology Group (OCOG)

🩺 Plain-English Summary (8th-Grade Level)

The primary objective of this study is to determine in women with node negative BC ≀3cm in size, if PBI compared to WBI, both given once-a-day over 1 week following BCS, is non-inferior for LR and reduces adverse cosmesis. The primary outcomes are LR and patient-assessed cosmesis at 3 years post randomization.

Who can join: Review the eligibility criteria below.

Location: GenesisCare Darlinghurst β€” Darlinghurst, New South Wales

Age range: 50 Years to 120 Years

πŸ§ͺ Interventions in This Study

  • Whole Breast Irradiation (WBI) (RADIATION)
  • Partial Breast Irradiation (PBI) (RADIATION)

πŸ“‹ "Do I Qualify?" β€” 1-Minute Self Screener

Instant Checklist

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

πŸ“ All Participating Trial Locations (30 Sites)

Showing the first 25 of 30 sites.

  • GenesisCare Darlinghurst β€” Darlinghurst, New South Wales
  • GenesisCare Hurstville β€” Hurstville, New South Wales
  • GenesisCare Mater Hospital β€” North Sydney, New South Wales
  • GenesisCare Bundaberg β€” Bundaberg, Queensland
  • GenesisCare Southport β€” Southport, Queensland
  • GenesisCare Tugun β€” Tugun, Queensland
  • GenesisCare Hervey Bay β€” Urraween, Queensland
  • GenesisCare St Andrew's β€” Adelaide, South Australia
  • GenesisCare Bedford Park β€” Bedford Park, South Australia
  • GenesisCare Wembley β€” Wembley, Washington
  • GenesisCare Fiona Stanley Hospital β€” Murdoch, Western Austrailia
  • GenesisCare Hollywood β€” Nedlands, Western Australia
  • Arthur J. E. Child Comprehensive Cancer Centre-Clinical Research Unit β€” Calgary, Alberta
  • BCCA-Vancouver Island Cancer Centre β€” Victoria, British Columbia
  • QEII HSC - Nova Scotia Cancer Centre β€” Halifax, Nova Scotia
  • Royal Victoria Regional Health Centre β€” Barrie, Ontario
  • Juravinski Cancer Centre β€” Hamilton, Ontario
  • London Regional Cancer Centre β€” London, Ontario
  • Stronach (Southlake) Regional Health Centre β€” Newmarket, Ontario
  • Algoma District Cancer Program β€” Sault Ste. Marie, Ontario
  • Princess Margaret Hospital β€” Toronto, Ontario
  • Toronto-Sunnybrook Health Sciences Centre - Odette Cancer Centre β€” Toronto, Ontario
  • Windsor Regional Cancer Centre β€” Windsor, Ontario
  • CSSS Champlain - Charles LeMoyne β€” Greenfield Park, Quebec
  • CHUM - Centre Hospitalier de L'UniversitΓ© de MontrΓ©al β€” Montreal, Quebec

πŸ“ž Contact the Study Coordinator

Phone: (905) 527-2299

Email: schamber@mcmaster.ca

Coordinator details come directly from the registered NIH protocol. Confirm the study is still recruiting before traveling.

πŸ’° 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 Β§ 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.

πŸ’‘ How to Participate

  1. Check the checklist above to see if you may qualify.
  2. Contact the study coordinator using the phone/email above.
  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.
πŸ›οΈ View Official NIH Record β†—