Clinical trialNCT05417516RecruitingPhase 3Interventional

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

SponsorOntario Clinical Oncology Group (OCOG)Enrollment910Breast Neoplasm FemaleCosmetic OutcomeRadiotherapy

View the registry record on ClinicalTrials.gov

Summary

The registered summary isn't in our current data snapshot. Read it on the ClinicalTrials.gov record ↗. Why? →

Investigators

The overall officials registered on this study. Names that resolve to a findmyKOL profile link to it; the rest are shown as registered.

Timothy Whelan, M.D.
Juravinski Cancer Centre and McMaster University
Principal Investigator
clinicaltrials.gov ↗

A profile link is shown only when the registered name resolves to a person record with a confident, namesake-checked match; ambiguous names stay unlinked.

Sites

30 registered facilities, with the per-site recruitment status where the registry publishes one. ClinicalTrials.gov does not publish per-site enrollment counts.

Australia

Genesiscare Darlinghurst
Darlinghurst, New South Wales, Australia
Peter Graham, MD
Recruiting
Genesiscare Hurstville
Hurstville, New South Wales, Australia
Peter Graham
Recruiting
Genesiscare Mater Hospital
North Sydney, New South Wales, Australia
Gillian Lamoury
Recruiting
Genesiscare Bundaberg
Bundaberg, Queensland, Australia
Gerry Adams
Recruiting
Genesiscare Southport
Southport, Queensland, Australia
Selena Young
Recruiting
Genesiscare Tugun
Tugun, Queensland, Australia
Selena Young
Recruiting
Genesiscare Hervey Bay
Urraween, Queensland, Australia
Gerry Adams
Recruiting
Genesiscare St Andrew'S
Adelaide, South Australia, Australia
Marcus Dreosti
Recruiting
Genesiscare Bedford Park
Bedford Park, South Australia, Australia
Marcus Dreosti
Recruiting
Genesiscare Wembley
Wembley, Washington, Australia
Yvonne Zissiadis
Recruiting
Genesiscare Fiona Stanley Hospital
Murdoch, Western Austrailia, Australia
Yvonne Zissiadis
Recruiting
Genesiscare Hollywood
Nedlands, Western Australia, Australia
Yvonne Zissiadis
Recruiting

Canada

Arthur J. E. Child Comprehensive Cancer Centre-Clinical Research Unit
Calgary, Alberta, Canada
Jeffrey Cao
Recruiting
Bcca-Vancouver Island Cancer Centre
Victoria, British Columbia, Canada
Tanya Berrang
Not, yet, recruiting
Qeii Hsc - Nova Scotia Cancer Centre
Halifax, Nova Scotia, Canada
Maureen Nolan
Recruiting
Royal Victoria Regional Health Centre
Barrie, Ontario, Canada
Jessica Conway
Recruiting
Juravinski Cancer Centre
Hamilton, Ontario, Canada
Do-Hoon Kim
Recruiting
London Regional Cancer Centre
London, Ontario, Canada
Francisco Perera, MD
Recruiting
Stronach (southlake) Regional Health Centre
Newmarket, Ontario, Canada
Tatiana Conrad
Recruiting
Algoma District Cancer Program
Sault Ste. Marie, Ontario, Canada
Stephane Thibodeau
Recruiting
Princess Margaret Hospital
Toronto, Ontario, Canada
Jennifer Croke
Recruiting
Toronto-Sunnybrook Health Sciences Centre - Odette Cancer Centre
Toronto, Ontario, Canada
Recruiting
Windsor Regional Cancer Centre
Windsor, Ontario, Canada
Khalid Hirmiz, MD
Recruiting
Csss Champlain - Charles Lemoyne
Greenfield Park, Quebec, Canada
Marjory Jolicoeur, MD
Recruiting
Chum - Centre Hospitalier de L'Université de Montréal
Montreal, Quebec, Canada
Jean-Marc Bourque
Recruiting
Mcgill University Health Centre
Montreal, Quebec, Canada
Tarek Hijal
Recruiting
Chuq-Pavillon Hotel-Dieu de Quebec
Québec, Quebec, Canada
Valerie Theberge
Recruiting
Chus-Hopital Fleurimont
Sherbrooke, Quebec, Canada
Sawnya Provencher
Recruiting
Centre Intégré Universitaire de Santé Et de Services Sociaux de la Mauricie-Centre-Du-Québec (ciusss Mcq)
Trois-Rivières, Quebec, Canada
Francois Vincent
Recruiting
Saskatoon Cancer Centre
Saskatoon, Saskatchewan, Canada
Duc Le, MD
Recruiting

Site investigator names are published by ClinicalTrials.gov only while a study recruits, so completed studies list sites without them.

Drugs studied

No drug or biological interventions are in our data for this study — it may test a procedure, device or behavioral intervention, or the intervention list isn't in our current snapshot. See the registry record ↗. Why? →

Registration & key dates

Registry attributes as recorded on the ClinicalTrials.gov study record.

Start: 20 Nov 2023
Primary completion: 30 Nov 2029
Completion: 30 Nov 2031
Last update posted: 7 Jul 2026
Registered enrollment: 910
Registry id: NCT05417516

clinicaltrials.gov ↗

Source: ClinicalTrials.gov, via the CTTI AACT database, data as of 12 Jul 2026. Registry facts are shown as registered by the study sponsor; findmyKOL does not interpret them.