PET Imaging to Determine the Role of PET in the Assessment of Regional Disease in Breast Cancer (PET PREDICT Trial)

Phase 3CompletedNCT00201942

Ontario Clinical Oncology Group (OCOG)336 enrolled

Overview

The overall goal of this study is to determine how FDG-PET can be incorporated into the assessment of the axilla in the staging and treatment of women with early stage breast cancer. A multicentre, prospective, diagnostic accuracy study will be conducted evaluating the ability of positronic emission tomography using fluorodeoxyglucose (FDG-PET) to detect the presence or absence of axillary lymph node metastases in newly diagnosed breast cancer patients with no clinical evidence of spread of disease beyond the breast.

Patients will have histologic confirmation of invasive breast cancer and will have a FDG-PET scan prior to axillary node assessment. All patients will have a sentinel node biopsy if any sentinel nodes can be located. Patients with a positive sentinel node will have an axillary node dissection. The results of the PET will be compared to the reference standard of histologic examination of all excised (sentinel and non-sentinel) axillary lymph nodes which will be referred to as axillary node assessment. Sensitivity, specificity, positive and negative predictive values for PET-FDG will be determined.

Study Type

INTERVENTIONAL

Allocation

NON_RANDOMIZED

Purpose

DIAGNOSTIC

Masking

NONE

Enrollment

336

Conditions

Breast Cancer

Interventions

Eligibility

Sex: FEMALEMin age: 18 Years

Medical Language ↔ Plain English

Inclusion Criteria: * Histologic diagnosis of invasive breast cancer, * Resectable primary cancer. Exclusion Criteria: * The diagnosis of invasive breast cancer was made more than 3 months prior to registration, * Patient and/or surgeon are not willing to proceed with a SNB or AND after the PET scan is completed, * Patient and/or surgeon are not willing to proceed with a level I and II AND if the SNB is positive, if the PET scan shows increased uptake in the ipsilateral axilla, or if the surgeon is still gaining experience in the performance of SNB, * SNB or AND has already been done, * Chemotherapy has been given or will be given prior to PET scan or SNB or AND, * Significant serious concurrent medical problems (e.g., uncontrolled diabetes), * Patient is pregnant or lactating, * Patient is unable to lie supine and with both arms above their heads for PET scan, * Known hypersensitivity to FDG, * Clinical evidence of regional nodal metastases (fixed, matted axillary nodes), * Clinical evidence of distant metastases.

Locations (10)

St. Joseph's

Hamilton, Ontario, Canada

Juravinski Cancer Centre

Hamilton, Ontario, Canada

Kingston Regional Cancer Centre

Kingston, Ontario, Canada

London Regional Cancer Centre

London, Ontario, Canada

Ottawa Regional Cancer Centre

Ottawa, Ontario, Canada

North York

Toronto, Ontario, Canada

Sunnybrook Regional Cancer Centre and Women's College

Toronto, Ontario, Canada

St. Michael's

Toronto, Ontario, Canada

Mount Sinai Hospital

Toronto, Ontario, Canada

Princess Margaret Hospital

Toronto, Ontario, Canada

Outcomes

Primary Outcomes

The primary outcomes are the sensitivity and specificity of FDG-PET in axillary node assessments using axillary node assessment [Sentinel Node Biopsy(SNB) with or without Axillary Node Dissection (AND)] as the reference standard.

Secondary Outcomes

Patients with positive FDG-PET in non-axillary nodal areas;

Patients with positive FDG-PET in other non-nodal areas;

Patients with positive FDG-PET in the residual breast tissue.