breast cancer in the older woman - is radiation necessary?
DESCRIPTION
Breast Cancer in the Older Woman - Is Radiation Necessary?. Kevin S.Hughes, MD, FACS Co-Director, Avon Comprehensive Breast Evaluation Center Massachusetts General Hospital Harvard Medical School. American Society of Breast Surgeons Phoenix, Arizona 2012. Date 06/01/2007. - PowerPoint PPT PresentationTRANSCRIPT
Kevin S.Hughes, MD, FACSCo-Director, Avon Comprehensive Breast Evaluation Center
Massachusetts General HospitalHarvard Medical School
Date 06/01/2007
Breast Cancer in the Older Woman - Is Radiation
Necessary?
American Society of Breast SurgeonsPhoenix, Arizona
2012
1.9 cm, ER+, clinical N0 Cancer1.9 cm, ER+, clinical N0 Cancer
Lumpectomy
Plus
Radiation/Boost
Tamoxifen
Sentinel Node
Chemotherapy
BRCA testing
1.9 cm, ER+, clinical N0 Cancer1.9 cm, ER+, clinical N0 Cancer
Lumpectomy
Plus
Radiation/Boost
Tamoxifen
Sentinel Node
Chemotherapy
BRCA testing
Lumpectomy
Plus
Radiation/Boost
Tamoxifen/AI
Sentinel Node
Chemotherapy
BRCA testing
Can we Vs should we?
CALGB 9343Comparison of Lumpectomy Plus Tamoxifen With and Without Irradiation in Women 70 or Older with
Clinical Stage I, ER+ Breast Carcinoma
Kevin S. Hughes, Lauren A. Schnaper, Constance Cirrincione, Donald Berry, Barbara L. Smith, Beryl McCormick, Hyman B.
Muss, Clifford Hudis, Eric Winer
Cancer and Leukemia Group BRadiation Therapy Oncology Group
Eastern Cooperative Oncology Group
Concerns regarding this study
• Patients randomized to no radiation would be inappropriately under-treated
Concerns regarding this study
• Patients randomized to receive no radiation would be inappropriately under-treated
• Patients randomized to radiation therapy would be inappropriately over-treated
CALGB 9343 ELIGIBILITYELIGIBILITY
Age Age 70 70
ClinicallyClinically Node Negative Node Negative
Lumpectomy,Lumpectomy, Negative Margin Negative Margin
Tumor size Tumor size 2 cm 2 cm
ER Positive orER Positive or Indeterminate Indeterminate
STRATIFICATIONSTRATIFICATION
AgeAge < 75 < 75 75 75
Axillary DissectionAxillary DissectionYesYesNoNo
Radiation Radiation
TamoxifenTamoxifen
TamoxifenTamoxifen
RRAANNDDOOMMIIZZEE
CALGB 9343• Opened July 15, 1994• Closed February 26, 1999
647 patients – Eligible 631
– Ineligible 5
– Canceled/Never treated 11
Median follow-up 12 years
Patient characteristics
RT+Tam Tam
Total treated 317 319
Age >75 176 (56%) 172 (54%)
ER Positive 308 (97%) 310 (97%)
Size < 2cm 295 (93%) 296 (93%)
No Ax dissection 200 (63%) 203 (64%)
IBTR (Ipsilateral Breast Tumor Recurrence)
91%
98%
Ipsilateral cancer risk
Radiation decreases local recurrence by ~7%
Does it do anything else?
No RT
Mastectomy
Lumpectomy
IBTR 27
RT
IBTR6
4
18
10
Actuarial survival for given ages at entry
D. Berry8/28/11
Ultimate Outcome
Breast Recurrence Less
Ultimate Mastectomy Same
Second primary cancer Same
Distant metastasis Same
Death Same
Death Other Causes Same
Death from breast cancer Same
22 women
With modern margins and AI’s, RT will likely have even less benefit
CONCLUSION: In older women, the benefits of radiation after lumpectomy are small
AS OF 2007, LITTLE CHANGE IN PRACTICE