Importance The results of the American College of Surgeons Oncology Group Z (ACOSOG Z) trial were first reported in with a. The American College of Surgeons Oncology Group (ACOSOG) Z trial was a multicenter noninferiority study which enrolled and. ABSTRACT. Introduction. The ACOSOG Z trial has been described as practice-changing. The goal of this study was to determine the.

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The year disease-free survival was This multicenter randomized phase 3 trial was registered with the National Cancer Institute and approved by the institutional review boards at participating centers. The majority of patients were postmenopausal with hormone receptor—positive breast cancer, raising concern that additional follow-up beyond 6 acoog was tdial to document noninferiority of overall survival with SLND alone in this node-positive cohort. Axillary lymph node dissection does not improve survival or local control compared to nodal observation in patients with T breast cancer and a positive sentinel lymph node biopsy undergoing lumpectomy and whole-breast radiation.

The study was terminated before target enrollment of women because the observed mortality was lower than anticipated. Sign in to access your subscriptions Sign in to your personal account. Dr Ballman also reported receiving grant support from the National Cancer Institute during the conduct of the study. Even with follow-up extended to a median of tria.

The protocol specified that patients were to be followed up for a minimum of 10 years. J Am Coll Surg.


ACOSOG Z – Wiki Journal Club

Ten-year regional recurrence did not differ significantly between the 2 groups. Eligible patients were women with clinical T1 or T2 invasive breast cancer, no palpable axillary adenopathy, and 1 or 2 sentinel lymph nodes containing metastases. Kaplan-Meier survival curves for overall survival were compared using the log-rank test for noninferiority. Analyses were performed on the intent-to-treat sample patients in the SLND alone group and patients in the ALND group as well as on the patients who actually received treatment.

Study and Design End Points. Previously reported in [4].

These findings do not support routine use of axillary lymph node dissection in this patient population based on year outcomes. Usable articles Oncology Surgery.


The secondary outcome was disease-free survival. This page was last modified on 6 Septemberat Potential impact of application of Z derived criteria to omit axillary lymph node dissection in node positive breast cancer patients.

The eligibility criteria have been reported. Disease-free survival, which was defined as the time from randomization to death or first breast cancer recurrence, was a secondary end point along with morbidity and locoregional recurrence.

Enrollment began teial May with a planned accrual of patients and closed in December due to a lower than expected event rate. Annual hazard rates of recurrence for breast cancer during 24 years of follow-up: Clin Oncol R Coll Radiol.

However, the analysis of tiral survival after the completion of study follow-up was not prespecified. The American College of Surgeons Tria, Group Z ACOSOG Z randomized clinical trial was designed to determine whether SLND alone yielded survival outcomes that were noninferior to that obtained with ALND in women with a limited number of sentinel node metastases undergoing breast-conserving surgery and receiving adjuvant whole-breast irradiation with adjuvant systemic therapy.


These findings do not support routine use of axillary lymph node dissection in this patient population based on year outcomes.

The Journal of the American Medical Association. Create a personal account to register for email alerts with links to free full-text articles. Third-field radiation was prohibited.

acosoog Annual mammography was required; other testing was based on individual symptoms or by investigator preference. The role of nodal irradiation, specifically in ACOSOG Z and in the management of patients with node-positive breast cancer, is controversial. Among women with T1 or T2 invasive primary breast cancer, no palpable axillary adenopathy, and 1 or 2 sentinel lymph nodes containing metastases, year overall survival for patients treated with sentinel lymph node dissection alone was noninferior to overall survival for those treated with axillary lymph node dissection.

Locoregional recurrence after breast cancer surgery: Create a free personal account to download free article PDFs, sign up for alerts, and more.