Title Une étude de phase I-II évaluant la radiothérapie préopératoire en une seule fraction pour les femmes atteintes d’un cancer du sein de stade précoce
Protocole ID SPORT DS
ClinicalTrials.gov ID
Cancer Type(s) Breast
Phase Phase I-II
Stage
Study Type
Drug aucun
Institution CIUSSS DE L'EST-DE-L'ILE-DE-MONTREAL
   PAV. MAISONNEUVE/PAV. MARCEL-LAMOUREUX
      5415 boul. de l'Assomption, Montréal, QC, H1T2M4
City Montréal
Principal Investigator Dr. Michael Yassa
Coordinator Véronique Tran
514-252-3400 poste 3227
Status Recruiting
Activation Date
Eligibility Criteria
  • Female aged 65 years or older
  • World Health Organization (WHO) performance status 0-2
  • Invasive ductal carcinoma proven by biopsy done ≤ 12 weeks from treatment start
  • Unifocal disease on preoperative staging ultrasound done ≤ 12 weeks from treatment start
  • Tumors less than 2cm clinically on physical exam, as well as on breast ultrasound
  • No clinical evidence of nodal disease (i.e. cN0), on physical examination done ≤ 12 weeks from treatment start, as well as on breast ultrasound
  • Estrogen receptor status (ER) positive on biopsy
  • Her2 negative on biopsy
  • Grade 1 or 2 on biopsy
  • Planned surgery is a partial mastectomy with sentinel lymph node biopsy
  • Localisation markers placed before treatment
Exclusion Criteria
  • Age less than 65 years
  • A known deleterious mutation in BRCA 1 and/or BRCA 2
  • Clinical tumor size > 2.0 cm in greatest diameter on staging ultrasound
  • Tumor histology limited to lobular carcinoma only
  • Clinically positive axillary nodes (cN+)
  • Lymphovascular invasion on biopsy
  • Pure ductal or lobular carcinoma in situ on biopsy
  • Extensive intraductal component on biopsy
  • Neoadjuvant hormonal manipulation or chemotherapy
  • Prior history of cancer (Patients with prior or concurrent basal cell or squamous cell skin cancers are eligible for the trial)
  • More than one primary tumor in different quadrants of the same breast
  • Diffuse microcalcifications on mammography
  • Paget’s disease of the nipple
  • Previous irradiation to the ipsilateral breast
  • Presence of an ipsilateral breast implant or pacemaker
  • Serious non-malignant disease (e.g. cardiovascular, pulmonary, systemic lupus erythematosus (SLE), scleroderma) which would preclude definitive radiation treatment
  • Estrogen receptor status (ER) not known
  • Currently pregnant or lactating
  • Psychiatric or addictive disorders which would preclude obtaining informed consent or adherence to protocol
  • Geographic inaccessibility for follow-up
  • Lack of preoperative staging with breast and axillary ultrasound
  • Inability to adequately plan the patient for the experimental technique