De-Escalation of Breast Radiation Trial for Hormone Sensitive, HER-2 Negative, Oncotype Recurrence Score Less Than or Equal to 18 Breast Cancer (DEBRA)
Purpose
This Phase III Trial evaluates whether breast conservation surgery and endocrine therapy results in a non-inferior rate of invasive or non-invasive ipsilateral breast tumor recurrence (IBTR) compared to breast conservation with breast radiation and endocrine therapy.
Condition
- Stage I Breast Cancer
Eligibility
- Eligible Ages
- Between 50 Years and 70 Years
- Eligible Sex
- All
- Accepts Healthy Volunteers
- No
Inclusion Criteria
- • The patient or a legally authorized representative must provide study-specific informed consent prior to pre-entry/Step 1 and, for patients treated in the U.S., authorization permitting release of personal health information. - The patient must have an ECOG performance status of 0 or 1. - The patient must have undergone a lumpectomy and the margins of the resected specimen or re-excision must be histologically free of invasive tumor and DCIS with no ink on tumor as determined by the local pathologist. If pathologic examination demonstrates tumor at the line of resection, additional excisions may be performed to obtain clear margins. (Patients with margins positive for LCIS are eligible without additional resection.) - The tumor must be unilateral invasive adenocarcinoma of the breast on histologic examination. - Patient must have undergone axillary staging (sentinel node biopsy and/or axillary node dissection). - The following staging criteria must be met postoperatively according to AJCC 8th edition criteria: - By pathologic evaluation, primary tumor must be pT1 (less than or equal to 2 cm). - By pathologic evaluation, ipsilateral nodes must be pN0. (Patients with pathologic staging of pN0(i+) or pN0(mol+) are NOT eligible.) - Oncotype DX Recurrence Score of less than or equal to 18 on diagnostic core biopsy or resected specimen. ** For patients with a T1a tumor (less than or equal to 0.5 cm in size) or patients at Canadian provinces or approved international sites where Oncotype DX Recurrence Score testing would not be covered, who do not already have an Oncotype DX Recurrence Score at pre-entry/Step 1, a specimen (unstained blocks or slides) must be sent to the Genomic Health centralized laboratory. Tumor size sample must be greater than or equal to 0.2 cm for analysis. *** The Oncotype RS can be run on the biopsy core or surgical specimen. The patient cannot have initiated endocrine therapy prior to tissue collection. - An Oncotype RS is required for eligibility, however, for a patient whose tumor has already had a MammaPrint test completed as part of usual care when being considered for enrollment and is in the binary "Low" category will meet this eligibility criteria and an Oncotype RS does not need to be performed. - The tumor must have been determined to be ER and/or PgR positive assessed by current ASCO/CAP Guideline Recommendations for hormone receptor testing. Patients with greater than or equal to 1% ER or PgR staining by IHC are considered positive. - The tumor must have been determined to be HER2-negative by current ASCO/CAP guidelines. - Patients may be premenopausal or postmenopausal at the time of pre-entry/Step 1. For study purposes, postmenopausal is defined as: - Age 56 or older with no spontaneous menses for at least 12 months prior to pre-entry/Step 1; or a documented hysterectomy; or - Age 55 or younger with no spontaneous menses for at least 12 months prior to pre-entry/Step 1 (e.g., spontaneous or secondary to hysterectomy) and with a documented estradiol level in the postmenopausal range according to local institutional/laboratory standard; or Documented bilateral oophorectomy. - The interval between the last surgery for breast cancer (including re-excision of margins) and pre-entry/Step 1 must be no more than 70 days. - The patient must have recovered from surgery with the incision completely healed and no signs of infection. - Bilateral mammogram or MRI within 6 months prior to pre-entry/Step 1. HIV-infected patients on effective anti-retroviral therapy with undetectable viral load within 6 months are eligible for this trial. Patients must be intending to take endocrine therapy for a minimum 5 years duration (tamoxifen or aromatase inhibitor). The specific regimen of endocrine therapy is at the treating physician's discretion.
Exclusion Criteria
- • Definitive clinical or radiologic evidence of metastatic disease. - pT1 mi and pT2 - pT4 tumors including inflammatory breast cancer. - Pathologic staging of pN0(i+) or pN0(mol+), pN1, pN2, or pN3 disease. - Patient had a mastectomy. - Palpable or radiographically suspicious ipsilateral or contralateral axillary, supraclavicular, infraclavicular, or internal mammary nodes, unless there is histologic confirmation that these nodes are negative for tumor. - Suspicious microcalcifications, densities, or palpable abnormalities (in the ipsilateral or contralateral breast) unless biopsied and found to be benign. - Non-epithelial breast malignancies such as sarcoma or lymphoma. - Proven multicentric carcinoma (invasive cancer or DCIS) in more than one quadrant or separated by 4 or more centimeters. (Patients with multifocal carcinoma are eligible.) - Paget's disease of the nipple. - Any history, not including the index cancer, of ipsilateral invasive breast cancer or ipsilateral DCIS treated or not treated. (Patients with synchronous or previous ipsilateral LCIS are eligible.) - Synchronous or previous contralateral invasive breast cancer or DCIS. (Patients with synchronous and/or previous contralateral LCIS are eligible.) - Surgical margins that cannot be microscopically assessed or are positive at pathologic evaluation. (If surgical margins are rendered free of disease by re- excision, the patient is eligible.) - Treatment plan that includes regional nodal irradiation. - Any treatment with radiation therapy, chemotherapy, or biotherapy, administered for the currently diagnosed breast cancer prior to pre-entry/Step 1. - History of non-breast malignancies (except for in situ cancers treated only by local excision and basal cell and squamous cell carcinomas of the skin) within 5 years prior to pre-entry/Step 1. - Current therapy with any endocrine therapy such as raloxifene (Evista®), tamoxifen, or other selective estrogen receptor modulators (SERMs), either for osteoporosis or breast cancer prevention. ** Patients are eligible for BR007 if they receive a short course of preoperative endocrine therapy of less than 6 weeks duration (prior to randomization/Step 2) for this diagnosis after the core biopsy (and can continue postoperatively if: - the Oncotype DX Recurrence Score is assessed on the biopsy core and is less than or equal to 18, AND - the patient had not initiated endocrine therapy prior to core biopsy tissue collection. *** This does not apply to adjuvant endocrine therapy recommended for this diagnosis which may start any time after surgery including prior to registration (Pre-entry/Step 1). - Patients intending to continue on oral, transdermal, or subdermal estrogen replacement (including all estrogen only and estrogen-progesterone formulas) are not eligible. Patients that discontinue oral, transdermal, or subdermal estrogen replacement prior to registration are eligible. - Prior breast or thoracic RT for any condition. - Active collagen vascular disease, specifically dermatomyositis with a CPK level above normal or with an active skin rash, systemic lupus erythematosis, or scleroderma. - Pregnancy or lactation at the time of pre-entry/Step 1 or intention to become pregnant during treatment. (Note: Pregnancy testing according to institutional standards for women of childbearing potential must be performed within 2 weeks prior to pre-entry/Step 1.) - Any other disease, metabolic dysfunction, physical examination finding, or clinical laboratory finding giving reasonable suspicion of a disease or condition that contraindicates the use of study therapy or that may affect the interpretation of the results or render the patient at high risk from treatment complications. - Psychiatric or addictive disorders or other conditions that, in the opinion of the investigator, would preclude the patient from meeting the study requirements or interfere with interpretation of study results. - Use of any investigational product within 30 days prior to pre-entry/Step 1.
Study Design
- Phase
- Phase 3
- Study Type
- Interventional
- Allocation
- Randomized
- Intervention Model
- Parallel Assignment
- Primary Purpose
- Treatment
- Masking
- None (Open Label)
Arm Groups
Arm | Description | Assigned Intervention |
---|---|---|
Active Comparator Arm 1: Breast Radiation Therapy + Endocrine Therapy |
Radiation therapy to the breast and hormonal drug for at least 5 years. Tamoxifen 20 mg daily Anastrozole 1 mg daily Letrozole 2.5 mg daily Exemestane 25 mg daily |
|
Active Comparator Arm 2: No Breast Radiation Therapy + Endocrine Therapy |
No radiation therapy, only hormonal drug for at least 5 years. Tamoxifen 20 mg daily Anastrozole 1 mg daily Letrozole 2.5 mg daily Exemestane 25 mg daily |
|
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Forest City, North Carolina 28043
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800-804-9376
Greenville, North Carolina 27834
Hendersonville, North Carolina 28791
High Point, North Carolina 27262
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336-802-2500
Huntersville, North Carolina 28078
Kernersville, North Carolina 27284
Matthews, North Carolina 28104
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980-442-0600
Matthews, North Carolina 28105
Matthews, North Carolina 28105
Monroe, North Carolina 28112
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980-442-2000
Mooresville, North Carolina 28117
Mount Airy, North Carolina 27030
New Bern, North Carolina 28561
North Wilkesboro, North Carolina 28659
Salisbury, North Carolina 28144
Salisbury, North Carolina 28144
Shelby, North Carolina 28150
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800-804-9376
Statesville, North Carolina 28625
Thomasville, North Carolina 27360
Winston-Salem, North Carolina 27103
Winston-Salem, North Carolina 27157
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336-713-6771
Fargo, North Dakota 58122
Fargo, North Dakota 58122
Grand Forks, North Dakota 58201
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701-780-6520
Akron, Ohio 44304
Akron, Ohio 44307
Avon, Ohio 44011
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800-641-2422
Barberton, Ohio 44203
Beachwood, Ohio 44122
Beavercreek, Ohio 45431
Canton, Ohio 44708
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888-293-4673
Canton, Ohio 44710
Centerville, Ohio 45459
Centerville, Ohio 45459
Cincinnati, Ohio 45219
Cleveland, Ohio 44106
Cleveland, Ohio 44109
Cleveland, Ohio 44111
Cleveland, Ohio 44195
Columbus, Ohio 43210
Columbus, Ohio 43213
Columbus, Ohio 43214
Columbus, Ohio 43215
Columbus, Ohio 43222
Columbus, Ohio 43228
Dayton, Ohio 45409
Dayton, Ohio 45409
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937-276-8320
Dayton, Ohio 45415
Dayton, Ohio 45415
Delaware, Ohio 43015
Delaware, Ohio 43015
Dublin, Ohio 43016
Findlay, Ohio 45840
Findlay, Ohio 45840
Findlay, Ohio 45840
Franklin, Ohio 45005-1066
Franklin, Ohio 45005
Greenville, Ohio 45331
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937-569-7515
Grove City, Ohio 43123
Kettering, Ohio 45409
Kettering, Ohio 45429
Mansfield, Ohio 44903
Mansfield, Ohio 44906
Marion, Ohio 43302
Mayfield Heights, Ohio 44124
Medina, Ohio 44256
Mentor, Ohio 44060
Middleburg Heights, Ohio 44130
New Albany, Ohio 43054
Parma, Ohio 44129
Ravenna, Ohio 44266
Sandusky, Ohio 44870
Sandusky, Ohio 44870
Strongsville, Ohio 44136
Sylvania, Ohio 43560
Toledo, Ohio 43606
Troy, Ohio 45373
Troy, Ohio 45373
Warrensville Heights, Ohio 44122
West Chester, Ohio 45069
Wooster, Ohio 44691
Zanesville, Ohio 43701
Oklahoma City, Oklahoma 73104
Oklahoma City, Oklahoma 73120
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405-752-3402
Clackamas, Oregon 97015
Gresham, Oregon 97030
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503-413-2150
Newberg, Oregon 97132
Oregon City, Oregon 97045
Portland, Oregon 97210
Portland, Oregon 97213
Portland, Oregon 97225
Tualatin, Oregon 97062
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503-413-1742
Allentown, Pennsylvania 18104
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610-776-4714
Bethlehem, Pennsylvania 18015
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484-503-4151
Chambersburg, Pennsylvania 17201
Danville, Pennsylvania 17822
Darby, Pennsylvania 19023-1291
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610-237-4982
Dunmore, Pennsylvania 18512
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888-808-6762
Easton, Pennsylvania 18045
Ephrata, Pennsylvania 17522
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717-721-4840
Erie, Pennsylvania 16544
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814-452-5000
Gettysburg, Pennsylvania 17325
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877-441-7957
Hershey, Pennsylvania 17033-0850
Jefferson Hills, Pennsylvania 15025
Lebanon, Pennsylvania 17042
Lewisburg, Pennsylvania 17837
Meadville, Pennsylvania 16335
Monroeville, Pennsylvania 15146
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412-858-7746
Natrona Heights, Pennsylvania 15065
Philadelphia, Pennsylvania 19107
Philadelphia, Pennsylvania 19111
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215-728-4790
Philadelphia, Pennsylvania 19114
Pittsburgh, Pennsylvania 15212
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877-284-2000
Pittsburgh, Pennsylvania 15224
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412-578-5000
Pottsville, Pennsylvania 17901
Quakertown, Pennsylvania 18951
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610-776-4714
Sayre, Pennsylvania 18840
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800-836-0388
Stroudsburg, Pennsylvania 18360
Wexford, Pennsylvania 15090
Wilkes-Barre, Pennsylvania 18711
Willow Grove, Pennsylvania 19090
York, Pennsylvania 17403
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877-441-7957
York, Pennsylvania 17403
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877-441-7957
Providence, Rhode Island 02903
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401-444-1488
Providence, Rhode Island 02905
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401-274-1122
Warwick, Rhode Island 02886
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401-737-7010
Westerly, Rhode Island 02891
Bluffton, South Carolina 29910
Charleston, South Carolina 29425
Florence, South Carolina 29506
Georgetown, South Carolina 29440
Hilton Head Island, South Carolina 29926
Okatie, South Carolina 29909
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843-273-7980
Rock Hill, South Carolina 29730
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800-804-9376
Rock Hill, South Carolina 29732
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800-804-9376
Sioux Falls, South Dakota 57104
Sioux Falls, South Dakota 57117-5134
Knoxville, Tennessee 37920
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865-544-9773
Nashville, Tennessee 37203
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615-342-1919
Nashville, Tennessee 37204
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800-811-8480
Nashville, Tennessee 37232
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800-811-8480
Abilene, Texas 79601
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325-670-6340
Baytown, Texas 77521
Conroe, Texas 77384
Galveston, Texas 77555-0565
Houston, Texas 77030
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713-790-2700
Houston, Texas 77030
Houston, Texas 77070
Houston, Texas 77079
Houston, Texas 77094
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832-522-2873
League City, Texas 77573
Lubbock, Texas 79415
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806-775-8590
Lubbock, Texas 79430
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806-775-8590
Nassau Bay, Texas 77058
San Antonio, Texas 78229
Sugar Land, Texas 77478
Sugar Land, Texas 77479
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281-242-2873
The Woodlands, Texas 77385
American Fork, Utah 84003
Cedar City, Utah 84720
Logan, Utah 84321
Murray, Utah 84107
Ogden, Utah 84403
Provo, Utah 84604
Riverton, Utah 84065
Saint George, Utah 84770
Salt Lake City, Utah 84106
Salt Lake City, Utah 84143
Burlington, Vermont 05401
Burlington, Vermont 05405
Saint Johnsbury, Vermont 05819
Mechanicsville, Virginia 23116
Midlothian, Virginia 23114
Portsmouth, Virginia 23708-2197
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757-953-5939
Richmond, Virginia 23226
Richmond, Virginia 23230
South Hill, Virginia 23970
Bellingham, Washington 98225
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360-788-8223
Edmonds, Washington 98026
Issaquah, Washington 98029
Mount Vernon, Washington 98274
Seattle, Washington 98107
Seattle, Washington 98122
Silverdale, Washington 98383
Vancouver, Washington 98684
Vancouver, Washington 98686
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503-413-2150
Huntington, West Virginia 25701
Antigo, Wisconsin 54409
Burlington, Wisconsin 53105
Eau Claire, Wisconsin 54701
Fond Du Lac, Wisconsin 54935
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800-494-2927
Fond Du Lac, Wisconsin 54937
Germantown, Wisconsin 53022
Grafton, Wisconsin 53024
Green Bay, Wisconsin 54301
Green Bay, Wisconsin 54303
Green Bay, Wisconsin 54311
Johnson Creek, Wisconsin 53038
Kenosha, Wisconsin 53142
La Crosse, Wisconsin 54601
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855-776-0015
Madison, Wisconsin 53718
Madison, Wisconsin 53792
Marinette, Wisconsin 54143
Marshfield, Wisconsin 54449
Medford, Wisconsin 54451
Menomonee Falls, Wisconsin 53051
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262-257-5100
Milwaukee, Wisconsin 53209
Milwaukee, Wisconsin 53215
Milwaukee, Wisconsin 53226
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414-805-3666
Milwaukee, Wisconsin 53233
Minocqua, Wisconsin 54548
Mukwonago, Wisconsin 53149
New Richmond, Wisconsin 54017
Oak Creek, Wisconsin 53154
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414-805-0505
Oconomowoc, Wisconsin 53066
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262-928-7878
Oshkosh, Wisconsin 54904
Racine, Wisconsin 53406
Rhinelander, Wisconsin 54501
Rice Lake, Wisconsin 54868
Sheboygan, Wisconsin 53081
Sheboygan, Wisconsin 53081
Sheboygan, Wisconsin 53081
Stevens Point, Wisconsin 54481
Stevens Point, Wisconsin 54482
Sturgeon Bay, Wisconsin 54235-1495
Summit, Wisconsin 53066
Two Rivers, Wisconsin 54241
Waukesha, Wisconsin 53188
Wausau, Wisconsin 54401
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877-405-6866
Wauwatosa, Wisconsin 53226
West Allis, Wisconsin 53227
West Bend, Wisconsin 53095
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414-805-0505
Weston, Wisconsin 54476
Wisconsin Rapids, Wisconsin 54494
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715-422-7718
More Details
- NCT ID
- NCT04852887
- Status
- Recruiting
- Sponsor
- NRG Oncology
Detailed Description
Breast conservation therapy for early stage breast cancer has been an important achievement of oncology practice in the last half century and breast radiotherapy (RT) has been essential in its development. Several seminal randomized clinical trials conducted in the 1980's era demonstrated that breast radiotherapy following lumpectomy yielded overall survival outcomes equivalent to mastectomy for treatment of early stage invasive breast cancer leading to the National Institute of Health (NIH) Consensus Conference statement in 1991 supporting breast conservation treatment.This established lumpectomy with RT as an alternative to mastectomy and subsequently the rate of breast conservation for eligible breast cancer patients rose steadily. Shortly thereafter, investigators recognized that the toxicity, patient burden, and geographic barriers associated with the protracted treatment course for breast RT was a potential barrier to breast conservation utilization. Numerous phase III clinical trials were conducted randomizing women post lumpectomy to RT vs. observation aimed at identifying which cases did not derive a significant RT benefit. No such subsets of breast cancer patients were consistently identified, thereby solidifying the standard that breast conservation required both lumpectomy and RT. Two meta-analyses by the Early Breast Cancer Trialists Collaborative Group (EBCTCG) in 2005 and 2011 further reinforced the value of breast RT post lumpectomy by examining the relationship of local recurrence and breast cancer mortality relative to the use of breast RT post lumpectomy. In each analysis, it found for axillary node negative breast cancer patients undergoing breast conservation a small but consistent increase in breast cancer mortality when breast radiotherapy was omitted. As a result, breast RT after lumpectomy has become an established paradigm for breast conservation for early stage breast cancer and is recommended by the NCCN 2018 guidelines (as it has for nearly two decades) that are commonly used today by clinicians and health systems alike. The landscape of early stage breast cancer has changed dramatically over the past three decades since the establishment of breast conservation. Widespread screening with mammography has led to the diagnosis of smaller and earlier stage disease. All breast cancers are now routinely characterized by their hormone sensitivity based on the presence of estrogen and progesterone receptors on tumor cells within the biopsy or surgical specimen and presence of HER2 (human epidermal growth factor receptor 2) which has provided an additional means of stratifying breast cancer into distinct prognostic groups. Small, node negative invasive breast cancer that is hormone sensitive (HS) and HER2-negative has a lower overall recurrence rate (local, regional, and distant) than breast cancers characterized by more adverse clinical pathologic features. However, other than in a smaller subset of women greater than 70 years old, clinical trials in this HS population still demonstrated unacceptable local recurrence risks long term after lumpectomy alone emphasizing that clinical and pathologic features are insufficient for consistently identifying when RT can safely be omitted.