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Study identifier: NCT05592938 Synced from ClinicalTrials.gov · July 29, 2026
● Recruiting

Partial Breast Re-irradiation Using Ultra Hypofractionation (PRESERVE)

Condition: Breast Cancer · Breast Cancer Recurrent  ·  Sponsor: University Health Network, Toronto

PhaseNA
Planned participants171
Who can joinFemale, 18 Years to 99 Years
Healthy volunteersNo

About this study

Breast-conserving surgery followed by re-irradiation with partial breast irradiation (rPBI) has recently been found to be a safe alternative to mastectomy for women who have undergone prior whole breast radiation. By reducing the volume of tissue receiving radiation, rPBI has been associated with less toxicity and improved cosmetic outcomes. For many women with early-stage breast cancer, shorter 1-week (5-fraction) courses of breast radiation (ultra-fractionation) have been found to be equivalent to longer fractionation schedules in the upfront treatment setting. These 1-week schedules are more convenient for patients, with fewer treatments and shorter overall treatment time. The investigators hypothesize that a 1-week ultra-hypofractionated rPBI regimen following breast-conserving surgery (BCS) for local recurrence or new primary breast cancer in the previously irradiated breast (LR) will be associated with acceptable toxicity at 1 year (\<13% grade \>3 toxicity).

This description comes directly from the study's public registry record.

Talk to the study team

Danielle Rodin, MD  ·  (416) 946-6513  ·  danielle.rodin@uhn.ca

Anne Koch, MD  ·  (416) 946-2919  ·  anne.koch@uhn.ca

Always discuss trial participation with your own doctor first.

Locations (19)

NYU Langone HealthNew York, New York, United StatesRecruiting
Columbia University Medical CenterNew York, New York, United StatesRecruiting
Virgina Community University Massey Comprehensive Cancer CenterRichmond, Virginia, United StatesRecruiting
Peter MacCallum Cancer CentreMelbourne, Victoria, AustraliaRecruiting
A.C.Camargo Cancer CenterSão Paulo, São Paulo, BrazilRecruiting
Royal Victoria Regional Health CentreBarrie, Ontario, CanadaRecruiting
London Health Science Centre - Verspeeten Family Cancer CentreLondon, Ontario, CanadaRecruiting
Lakeridge HealthOshawa, Ontario, CanadaRecruiting
Odette Cancer CentreToronto, Ontario, CanadaRecruiting
Princess Margaret Cancer CentreToronto, Ontario, CanadaRecruiting
CHU de Québec-Université LavalMontreal, Quebec, CanadaRecruiting
Hôpital Maisonneuve-Rosemont - CIUSSS de l'Est-de-l'Île-de-MontréalMontreal, Quebec, CanadaRecruiting

+ 7 more locations — full list on the registry record.

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Source record: clinicaltrials.gov/study/NCT05592938