Hypofractionated Radiation Therapy After Mastectomy in Preventing Recurrence in Patients With Stage IIa-IIIa Breast Cancer

Stage IIIA Breast Cancer Clinical Trial

Official title:

RT CHARM: Phase III Randomized Trial of Hypofractionated Post Mastectomy Radiation With Breast Reconstruction

Clinical Trial Details — Status: Active, not recruiting

Administrative data

• NCT number: NCT03414970
• Other study ID #: A221505
• Secondary ID: NCI-2017-00817
• Status: Active, not recruiting
• Phase: Phase 3
• Start date: March 12, 2018
• Est. completion date: August 2035

Study information

• Verified date: April 2024
• Source: Alliance for Clinical Trials in Oncology
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

This randomized phase III trial studies how well hypofractionated radiation therapy works in preventing recurrence in patients with stage IIa-IIIa cancer who have undergone mastectomy. Hypofractionated radiation therapy delivers higher doses of radiation therapy over a shorter period of time and may kill more tumor cells that remain after surgery and have fewer side effects.

Description:

PRIMARY OBJECTIVES: I. To evaluate whether the reconstruction complication rate at 24 months post radiation is non-inferior with hypofractionation. SECONDARY OBJECTIVES: I. To evaluate the incidence of acute and late radiation complications, based on Common Terminology Criteria for Adverse Events (CTCAE) 4.0 toxicity. II. To evaluate the local and local regional recurrence rate. III. To compare reconstruction complication rates based on reconstruction method (autologous +/- implant versus [vs] implant only) and timing of reconstruction received (immediate vs. intent for delayed). TERTIARY OBJECTIVES: I. To evaluate reconstructed breast photographic cosmetic scores with hypofractionated radiation compared to standard fractionation 24 months after radiation. II. To evaluate reconstructed breast photographic cosmetic scores 24 months after radiation based on the method and timing of reconstruction received. III. To estimate the incidence of arm lymphedema by treatment arm. IV. To compare physical well-being, psychosocial well-being, sexual well-being, satisfaction with breast/nipples/abdomen, and satisfaction with overall outcome between the treatment arms at 24 months after radiation. V. To estimate patient satisfaction with trial participation by treatment arm as measured by the Was It Worth It Questionnaire at 24 months after radiation. VI. To compare the direct and indirect patient costs for radiation therapy by treatment arm. VII. To compare patient reported total health care service utilization 12 months after the completion of radiation. VIII. To compare the economic impact of treatment. IX. To analyze polymorphisms in MDM2 and in genes including TP53, ATM, TGFB1, IL4, IL6, and IL10 and determine correlations with a higher likelihood of adverse radiation reactions (radiation sensitivity) and with toxicities. X. To analyze polymorphisms in MDM2 and in genes including TP53, ATM, TGFB1, IL4, IL6, and IL10 to determine correlations with secondary endpoints such as local-regional control. OUTLINE: Patients are randomized to 1 of 2 groups. GROUP I: Patients undergo radiation therapy daily on Monday-Friday for 5-6 weeks. GROUP II: Patients undergo hypofractionated radiation therapy daily on Monday-Friday for 3-4 weeks. After completion of study, patients are followed up for 5 years.

Recruitment information / eligibility

• Status: Active, not recruiting
• Enrollment: 897
• Est. completion date: August 2035
• Est. primary completion date: February 2025
• Accepts healthy volunteers: No
• Gender: All
• Age group: 18 Years and older

Eligibility

Inclusion Criteria:

• Histologically confirmed invasive carcinoma of the breast of any of the following histologies (ductal, lobular, mammary, medullary, or tubular); patients with metaplastic breast cancer are not eligible
• Patients will be staged according to the TNM staging system
• For patients not receiving neoadjuvant chemotherapy, pathologic staging must be T0N1-2a, T1N1-2a, T2N1-2a, T3N0-2a, and all M0 status
• For patients receiving neoadjuvant chemotherapy, clinical pre-chemo staging and post mastectomy pathological staging is required for all patients; patients who have received neoadjuvant chemotherapy and are pathologically cT0-2 and N0 are only eligible if biopsy-proven clinically N1 or N2 disease is documented prior to the start of neoadjuvant chemotherapy; cT3N0 patients or ypT3N0 patients who receive neoadjuvant chemotherapy may be eligible based on clinical or pathological T stage, and do not require pathologically positive lymph nodes
• Note: Higher of the clinical or pathological T and N stage are used for final staging, if receiving neoadjuvant chemotherapy; all patients with clinical, radiographic or pathological T4, N3 or involved internal mammary disease (N1b, N1c, and N2b) are not eligible. N1mic patients are eligible.
• No prior therapeutic radiation therapy to the chest, neck or axilla; prior radioactive oral iodine is permitted
• No prior history of ipsilateral breast cancer (invasive disease or ductal breast carcinoma in situ [DCIS]); lobular carcinoma in situ (LCIS) and benign breast disease is allowed
• No history of prior or concurrent contralateral invasive breast cancer; benign breast disease, LCIS or DCIS of contralateral breast is allowed
• No active collagen vascular diseases, such as: systemic lupus erythematous, scleroderma, or dermatomyositis
• Negative inked histologic margins from mastectomy pathology (no invasive cells at margin). Patients with DCIS at margin are eligible.
• No significant post mastectomy complications in the ipsilateral breast requiring an unplanned re-operation or admission for intravenous (IV) antibiotics; re-operation for margins evaluation, nodal completion and routine reconstruction is acceptable
• Radiation oncologist intends to treat all target volumes and respect all normal tissues in accordance with the dosimetric constraints described (simulation before registration recommended)
• Radiation oncologist is planning to treat regional lymph nodes including internal mammary nodes and meet acceptable protocol dosimetric requirements
• Radiation oncologist is NOT planning to utilize a chest wall/scar boost
• Patient must have undergone immediate reconstruction at the time of mastectomy or be planning to undergo reconstruction within 18 months after radiation
• Treating physician and patient must plan to start radiation treatment within the timeframes specified in protocol.
• If a tissue expander is utilized it needs to be a fluid filled expander, NO air expander (unless completely deflated) during radiation therapy
• For patients with diabetes, hemoglobin A1C test must have been performed =< 90 days prior to registration
• No co-existing medical conditions with life expectancy < 5 years
• No other malignancy within 5 years of registration with the exception of basal cell or squamous cell carcinoma of the skin treated with local resection only or carcinoma in situ of the cervix
• Negative pregnancy test (serum or urine HCG) in women of child-bearing potential = 7 days prior to registration. Patients who have received a bilateral tubal ligation still require a negative pregnancy test for eligibility. A female of childbearing potential is a sexually mature female who has not undergone a hysterectomy or bilateral oophorectomy and has not been naturally postmenopausal for at least 12 consecutive months
• Women of child-bearing potential must agree to utilize a form of birth control or agree to undergo sexual abstinence during radiation therapy
• Eastern Cooperative Oncology Group (ECOG) (Zubrod) performance status 0-1
• Patients must be able to read and comprehend English, in order to be able to complete study questionnaires; however, patients participating through Canadian Cancer Trials Group (CCTG) institutions who can read and comprehend French are eligible

Related Conditions & MeSH terms

• Breast Neoplasms
• Carcinoma
• Carcinoma, Ductal, Breast
• Carcinoma, Lobular
• Ductal Breast Carcinoma
• Invasive Breast Carcinoma
• Lobular Breast Carcinoma
• Medullary Breast Carcinoma
• Stage II Breast Cancer
• Stage IIA Breast Cancer
• Stage IIB Breast Cancer
• Stage IIIA Breast Cancer
• Tubular Breast Carcinoma

Intervention

Radiation:
• Radiation Therapy
Undergo RT

Other:
• Questionnaire Administration
Ancillary studies
• Quality-of-Life Assessment
Ancillary studies
• Laboratory Biomarker Analysis
Correlative studies

Radiation:
• Hypofractionated Radiation Therapy
Undergo hypofractionated RT

Locations

Country	Name	City	State
Canada	Royal Victoria Regional Health Centre	Barrie	Ontario
Canada	Tom Baker Cancer Centre	Calgary	Alberta
Canada	CISSS de l'Outaouais	Gatineau	Quebec
Canada	Juravinski Cancer Centre at Hamilton Health Sciences	Hamilton	Ontario
Canada	BCCA-Cancer Centre for the Southern Interior	Kelowna	British Columbia
Canada	CHUM - Centre Hospitalier de l'Universite de Montreal	Montreal	Quebec
Canada	CIUSSSEMTL-Hopital Maisonneuve-Rosemont	Montreal	Quebec
Canada	Jewish General Hospital	Montreal	Quebec
Canada	Stronach Regional Health Centre at Southlake	Newmarket	Ontario
Canada	CHU de Quebec-L'Hotel-Dieu de Quebec (HDQ)	Quebec City	Quebec
Canada	Odette Cancer Centre- Sunnybrook Health Sciences Centre	Toronto	Ontario
Canada	University Health Network-Princess Margaret Hospital	Toronto	Ontario
Canada	BCCA-Vancouver Island Cancer Centre	Victoria	British Columbia
United States	Providence Regional Cancer System-Aberdeen	Aberdeen	Washington
United States	Riverwood Healthcare Center	Aitkin	Minnesota
United States	Cleveland Clinic Akron General	Akron	Ohio
United States	Mayo Clinic Health System in Albert Lea	Albert Lea	Minnesota
United States	Lovelace Radiation Oncology	Albuquerque	New Mexico
United States	New Mexico Oncology Hematology Consultants	Albuquerque	New Mexico
United States	University of New Mexico Cancer Center	Albuquerque	New Mexico
United States	Inova Alexandria Hospital	Alexandria	Virginia
United States	Northside Hospital-Alpharetta	Alpharetta	Georgia
United States	AdventHealth Altamonte	Altamonte Springs	Florida
United States	Saint Anthony's Health	Alton	Illinois
United States	UPMC Altoona	Altoona	Pennsylvania
United States	American Fork Hospital / Huntsman Intermountain Cancer Center	American Fork	Utah
United States	Mary Greeley Medical Center	Ames	Iowa
United States	McFarland Clinic PC - Ames	Ames	Iowa
United States	Community Hospital of Anaconda	Anaconda	Montana
United States	Alaska Breast Care and Surgery LLC	Anchorage	Alaska
United States	Alaska Oncology and Hematology LLC	Anchorage	Alaska
United States	Alaska Women's Cancer Care	Anchorage	Alaska
United States	Anchorage Associates in Radiation Medicine	Anchorage	Alaska
United States	Anchorage Oncology Centre	Anchorage	Alaska
United States	Anchorage Radiation Therapy Center	Anchorage	Alaska
United States	Katmai Oncology Group	Anchorage	Alaska
United States	Providence Alaska Medical Center	Anchorage	Alaska
United States	Anne Arundel Medical Center	Annapolis	Maryland
United States	Kaiser Permanente-Deer Valley Medical Center	Antioch	California
United States	Mission Hope Medical Oncology - Arroyo Grande	Arroyo Grande	California
United States	PCR Oncology	Arroyo Grande	California
United States	Duluth Clinic Ashland	Ashland	Wisconsin
United States	Northwest Wisconsin Cancer Center	Ashland	Wisconsin
United States	Emory Saint Joseph's Hospital	Atlanta	Georgia
United States	Emory University Hospital Midtown	Atlanta	Georgia
United States	Emory University Hospital/Winship Cancer Institute	Atlanta	Georgia
United States	Grady Health System	Atlanta	Georgia
United States	Northside Hospital	Atlanta	Georgia
United States	Piedmont Hospital	Atlanta	Georgia
United States	John Fitzgerald Kennedy Medical Center	Atlantis	Florida
United States	Hematology Oncology Associates of Central New York-Auburn	Auburn	New York
United States	MultiCare Auburn Medical Center	Auburn	Washington
United States	Rocky Mountain Cancer Centers-Aurora	Aurora	Colorado
United States	Rush - Copley Medical Center	Aurora	Illinois
United States	The Medical Center of Aurora	Aurora	Colorado
United States	University of Colorado Hospital	Aurora	Colorado
United States	Saint Alphonsus Medical Center-Baker City	Baker City	Oregon
United States	Saint Louis Cancer and Breast Institute-Ballwin	Ballwin	Missouri
United States	Greater Baltimore Medical Center	Baltimore	Maryland
United States	Saint Agnes Hospital	Baltimore	Maryland
United States	University of Maryland/Greenebaum Cancer Center	Baltimore	Maryland
United States	Flaget Memorial Hospital	Bardstown	Kentucky
United States	Memorial Sloan Kettering Basking Ridge	Basking Ridge	New Jersey
United States	Louisiana Hematology Oncology Associates	Baton Rouge	Louisiana
United States	Mary Bird Perkins Cancer Center	Baton Rouge	Louisiana
United States	Our Lady of the Lake Medical Oncology	Baton Rouge	Louisiana
United States	Woman's Hospital	Baton Rouge	Louisiana
United States	Bronson Battle Creek	Battle Creek	Michigan
United States	McLaren Cancer Institute-Bay City	Bay City	Michigan
United States	Northwell Health Imbert Cancer Center	Bay Shore	New York
United States	UHHS-Chagrin Highlands Medical Center	Beachwood	Ohio
United States	UPMC-Heritage Valley Health System Beaver	Beaver	Pennsylvania
United States	UM Upper Chesapeake Medical Center	Bel Air	Maryland
United States	Overlake Medical Center	Bellevue	Washington
United States	PeaceHealth Saint Joseph Medical Center	Bellingham	Washington
United States	Strecker Cancer Center-Belpre	Belpre	Ohio
United States	Sanford Joe Lueken Cancer Center	Bemidji	Minnesota
United States	Saint Charles Health System	Bend	Oregon
United States	Central Vermont Medical Center/National Life Cancer Treatment	Berlin	Vermont
United States	Walter Reed National Military Medical Center	Bethesda	Maryland
United States	Saint Luke's University Hospital-Bethlehem Campus	Bethlehem	Pennsylvania
United States	Billings Clinic Cancer Center	Billings	Montana
United States	Saint Vincent Frontier Cancer Center	Billings	Montana
United States	Saint Vincent Healthcare	Billings	Montana
United States	Sanford Bismarck Medical Center	Bismarck	North Dakota
United States	Illinois CancerCare-Bloomington	Bloomington	Illinois
United States	Saint Joseph's/Candler - Bluffton Campus	Bluffton	South Carolina
United States	Boca Raton Regional Hospital	Boca Raton	Florida
United States	Prisma Health Cancer Institute - Spartanburg	Boiling Springs	South Carolina
United States	Saint Alphonsus Cancer Care Center-Boise	Boise	Idaho
United States	Saint Luke's Cancer Institute - Boise	Boise	Idaho
United States	Central Care Cancer Center - Bolivar	Bolivar	Missouri
United States	Parkland Health Center-Bonne Terre	Bonne Terre	Missouri
United States	McFarland Clinic PC-Boone	Boone	Iowa
United States	Boulder Community Foothills Hospital	Boulder	Colorado
United States	Boulder Community Hospital	Boulder	Colorado
United States	Rocky Mountain Cancer Centers-Boulder	Boulder	Colorado
United States	Bozeman Deaconess Hospital	Bozeman	Montana
United States	Essentia Health Saint Joseph's Medical Center	Brainerd	Minnesota
United States	Cox Cancer Center Branson	Branson	Missouri
United States	Harrison HealthPartners Hematology and Oncology-Bremerton	Bremerton	Washington
United States	Harrison Medical Center	Bremerton	Washington
United States	Wellmont Bristol Regional Medical Center	Bristol	Tennessee
United States	Wellmont Medical Associates-Bristol	Bristol	Virginia
United States	Montefiore Medical Center - Moses Campus	Bronx	New York
United States	Montefiore Medical Center-Einstein Campus	Bronx	New York
United States	Montefiore Medical Center-Weiler Hospital	Bronx	New York
United States	Ascension Southeast Wisconsin Hospital - Elmbrook Campus	Brookfield	Wisconsin
United States	New York-Presbyterian/Brooklyn Methodist Hospital	Brooklyn	New York
United States	Henry Ford Cancer Institute-Downriver	Brownstown	Michigan
United States	Saint Joseph Regional Cancer Center	Bryan	Texas
United States	Providence Saint Joseph Medical Center/Disney Family Cancer Center	Burbank	California
United States	Highline Medical Center-Main Campus	Burien	Washington
United States	Aurora Cancer Care-Southern Lakes VLCC	Burlington	Wisconsin
United States	University of Vermont and State Agricultural College	Burlington	Vermont
United States	University of Vermont Medical Center	Burlington	Vermont
United States	Fairview Ridges Hospital	Burnsville	Minnesota
United States	Minnesota Oncology - Burnsville	Burnsville	Minnesota
United States	Loyola Center for Health at Burr Ridge	Burr Ridge	Illinois
United States	Saint James Community Hospital and Cancer Treatment Center	Butte	Montana
United States	Saint Alphonsus Cancer Care Center-Caldwell	Caldwell	Idaho
United States	Cambridge Medical Center	Cambridge	Minnesota
United States	Sands Cancer Center	Canandaigua	New York
United States	Illinois CancerCare-Canton	Canton	Illinois
United States	Northside Hospital-Cherokee	Canton	Georgia
United States	Saint Francis Medical Center	Cape Girardeau	Missouri
United States	Southeast Cancer Center	Cape Girardeau	Missouri
United States	Memorial Hospital of Carbondale	Carbondale	Illinois
United States	Carlisle Regional Cancer Center	Carlisle	Pennsylvania
United States	Saint Anthony Regional Hospital	Carroll	Iowa
United States	Carson Tahoe Regional Medical Center	Carson City	Nevada
United States	SIH Cancer Institute	Carterville	Illinois
United States	Illinois CancerCare-Carthage	Carthage	Illinois
United States	Sandra L Maxwell Cancer Center	Cedar City	Utah
United States	AdventHealth Celebration	Celebration	Florida
United States	Rocky Mountain Cancer Centers - Centennial	Centennial	Colorado
United States	Centralia Oncology Clinic	Centralia	Illinois
United States	Providence Regional Cancer System-Centralia	Centralia	Washington
United States	Christiana Care Health System-Concord Health Center	Chadds Ford	Pennsylvania
United States	Geauga Hospital	Chardon	Ohio
United States	Medical University of South Carolina	Charleston	South Carolina
United States	West Virginia University Charleston Division	Charleston	West Virginia
United States	Erlanger Medical Center	Chattanooga	Tennessee
United States	Memorial Hospital	Chattanooga	Tennessee
United States	Cheyenne Regional Medical Center-West	Cheyenne	Wyoming
United States	Northwestern University	Chicago	Illinois
United States	Rush University Medical Center	Chicago	Illinois
United States	University of Chicago Comprehensive Cancer Center	Chicago	Illinois
United States	University of Illinois	Chicago	Illinois
United States	Adena Regional Medical Center	Chillicothe	Ohio
United States	Bethesda North Hospital	Cincinnati	Ohio
United States	Good Samaritan Hospital - Cincinnati	Cincinnati	Ohio
United States	TriHealth Cancer Institute-Anderson	Cincinnati	Ohio
United States	TriHealth Cancer Institute-Westside	Cincinnati	Ohio
United States	University of Cincinnati Cancer Center-UC Medical Center	Cincinnati	Ohio
United States	Clackamas Radiation Oncology Center	Clackamas	Oregon
United States	Providence Cancer Institute Clackamas Clinic	Clackamas	Oregon
United States	McLaren Cancer Institute-Clarkston	Clarkston	Michigan
United States	Case Western Reserve University	Cleveland	Ohio
United States	Cleveland Clinic Cancer Center/Fairview Hospital	Cleveland	Ohio
United States	Cleveland Clinic Foundation	Cleveland	Ohio
United States	Henry Ford Macomb Hospital-Clinton Township	Clinton Township	Michigan
United States	Medical Oncology and Hematology Associates-West Des Moines	Clive	Iowa
United States	Mercy Cancer Center-West Lakes	Clive	Iowa
United States	Billings Clinic-Cody	Cody	Wyoming
United States	Kootenai Health - Coeur d'Alene	Coeur d'Alene	Idaho
United States	Coffeyville Regional Medical Center	Coffeyville	Kansas
United States	Memorial Hospital North	Colorado Springs	Colorado
United States	Penrose-Saint Francis Healthcare	Colorado Springs	Colorado
United States	Rocky Mountain Cancer Centers-Penrose	Colorado Springs	Colorado
United States	UCHealth Memorial Hospital Central	Colorado Springs	Colorado
United States	Central Maryland Radiation Oncology in Howard County	Columbia	Maryland
United States	University of Missouri - Ellis Fischel	Columbia	Missouri
United States	Columbus Oncology and Hematology Associates Inc	Columbus	Ohio
United States	Doctors Hospital	Columbus	Ohio
United States	Grant Medical Center	Columbus	Ohio
United States	Mount Carmel East Hospital	Columbus	Ohio
United States	Mount Carmel Health Center West	Columbus	Ohio
United States	Ohio State University Comprehensive Cancer Center	Columbus	Ohio
United States	Riverside Methodist Hospital	Columbus	Ohio
United States	The Mark H Zangmeister Center	Columbus	Ohio
United States	Memorial Sloan Kettering Commack	Commack	New York
United States	Mercy Hospital	Coon Rapids	Minnesota
United States	Mary Imogene Bassett Hospital	Cooperstown	New York
United States	Bay Area Hospital	Coos Bay	Oregon
United States	UM Sylvester Comprehensive Cancer Center at Coral Gables	Coral Gables	Florida
United States	Commonwealth Cancer Center-Corbin	Corbin	Kentucky
United States	The West Clinic - Corinth	Corinth	Mississippi
United States	City of Hope Corona	Corona	California
United States	UC Irvine Health Cancer Center-Newport	Costa Mesa	California
United States	Alegent Health Mercy Hospital	Council Bluffs	Iowa
United States	Jennie Edmundson Memorial Hospital	Council Bluffs	Iowa
United States	Mary Bird Perkins Cancer Center - Covington	Covington	Louisiana
United States	Greater Regional Medical Center	Creston	Iowa
United States	Siteman Cancer Center at West County Hospital	Creve Coeur	Missouri
United States	Northside Hospital-Forsyth	Cumming	Georgia
United States	Carle on Vermilion	Danville	Illinois
United States	Geisinger Medical Center	Danville	Pennsylvania
United States	Beaumont Hospital - Dearborn	Dearborn	Michigan
United States	Cancer Care Specialists of Illinois - Decatur	Decatur	Illinois
United States	Decatur Memorial Hospital	Decatur	Illinois
United States	Essentia Health - Deer River Clinic	Deer River	Minnesota
United States	UM Sylvester Comprehensive Cancer Center at Deerfield Beach	Deerfield Beach	Florida
United States	Northwestern Medicine Cancer Center Kishwaukee	DeKalb	Illinois
United States	Delaware Health Center-Grady Cancer Center	Delaware	Ohio
United States	Delaware Radiation Oncology	Delaware	Ohio
United States	Grady Memorial Hospital	Delaware	Ohio
United States	Cancer Center of Colorado at Sloan's Lake	Denver	Colorado
United States	Colorado Blood Cancer Institute	Denver	Colorado
United States	Denver Health Medical Center	Denver	Colorado
United States	National Jewish Health-Main Campus	Denver	Colorado
United States	Porter Adventist Hospital	Denver	Colorado
United States	Presbyterian - Saint Lukes Medical Center - Health One	Denver	Colorado
United States	Rocky Mountain Cancer Centers-Midtown	Denver	Colorado
United States	Rocky Mountain Cancer Centers-Rose	Denver	Colorado
United States	Rose Medical Center	Denver	Colorado
United States	SCL Health Saint Joseph Hospital	Denver	Colorado
United States	The Women's Imaging Center	Denver	Colorado
United States	Western Surgical Care	Denver	Colorado
United States	Broadlawns Medical Center	Des Moines	Iowa
United States	Iowa Lutheran Hospital	Des Moines	Iowa
United States	Iowa Methodist Medical Center	Des Moines	Iowa
United States	Medical Oncology and Hematology Associates-Des Moines	Des Moines	Iowa
United States	Medical Oncology and Hematology Associates-Laurel	Des Moines	Iowa
United States	Mercy Medical Center - Des Moines	Des Moines	Iowa
United States	Henry Ford Hospital	Detroit	Michigan
United States	Essentia Health Saint Mary's - Detroit Lakes Clinic	Detroit Lakes	Minnesota
United States	Illinois CancerCare-Dixon	Dixon	Illinois
United States	City of Hope Comprehensive Cancer Center	Duarte	California
United States	Dublin Methodist Hospital	Dublin	Ohio
United States	Epic Care-Dublin	Dublin	California
United States	Kaiser Permanente Dublin	Dublin	California
United States	Essentia Health Cancer Center	Duluth	Minnesota
United States	Essentia Health Saint Mary's Medical Center	Duluth	Minnesota
United States	Miller-Dwan Hospital	Duluth	Minnesota
United States	Northeast Radiation Oncology Center	Dunmore	Pennsylvania
United States	Mercy Medical Center	Durango	Colorado
United States	Southwest Oncology PC	Durango	Colorado
United States	Hematology Oncology Associates of Central New York-East Syracuse	East Syracuse	New York
United States	University of Maryland Shore Medical Center at Easton	Easton	Maryland
United States	HSHS Sacred Heart Hospital	Eau Claire	Wisconsin
United States	Mayo Clinic Health System-Eau Claire Clinic	Eau Claire	Wisconsin
United States	Saint Elizabeth Medical Center South	Edgewood	Kentucky
United States	Fairview Southdale Hospital	Edina	Minnesota
United States	Swedish Cancer Institute-Edmonds	Edmonds	Washington
United States	Carle Physician Group-Effingham	Effingham	Illinois
United States	Crossroads Cancer Center	Effingham	Illinois
United States	Arnot Ogden Medical Center/Falck Cancer Center	Elmira	New York
United States	Mercy Cancer Center-Elyria	Elyria	Ohio
United States	Bay Area Breast Surgeons Inc	Emeryville	California
United States	Epic Care Partners in Cancer Care	Emeryville	California
United States	Walter Knox Memorial Hospital	Emmett	Idaho
United States	Mountain Blue Cancer Care Center - Swedish	Englewood	Colorado
United States	Rocky Mountain Cancer Centers - Swedish	Englewood	Colorado
United States	Swedish Medical Center	Englewood	Colorado
United States	The Melanoma and Skin Cancer Institute	Englewood	Colorado
United States	Saint Elizabeth Hospital	Enumclaw	Washington
United States	Ephrata Cancer Center	Ephrata	Pennsylvania
United States	Ephrata Community Hospital	Ephrata	Pennsylvania
United States	Green Bay Oncology - Escanaba	Escanaba	Michigan
United States	Illinois CancerCare-Eureka	Eureka	Illinois
United States	Providence Regional Cancer Partnership	Everett	Washington
United States	Exeter Hospital	Exeter	New Hampshire
United States	Fairbanks Memorial Hospital	Fairbanks	Alaska
United States	Inova Fair Oaks Hospital	Fairfax	Virginia
United States	Inova Schar Cancer Institute	Fairfax	Virginia
United States	Inova Fairfax Hospital	Falls Church	Virginia
United States	Essentia Health Cancer Center-South University Clinic	Fargo	North Dakota
United States	Sanford Broadway Medical Center	Fargo	North Dakota
United States	Sanford Roger Maris Cancer Center	Fargo	North Dakota
United States	Sanford South University Medical Center	Fargo	North Dakota
United States	Farmington Health Center	Farmington	Utah
United States	Parkland Health Center - Farmington	Farmington	Missouri
United States	Beaumont Hospital - Farmington Hills	Farmington Hills	Michigan
United States	UPMC Cancer Center at UPMC Horizon	Farrell	Pennsylvania
United States	Piedmont Fayette Hospital	Fayetteville	Georgia
United States	Saint Francis Hospital	Federal Way	Washington
United States	Lake Region Healthcare Corporation-Cancer Care	Fergus Falls	Minnesota
United States	McLaren Cancer Institute-Flint	Flint	Michigan
United States	Aurora Health Center-Fond du Lac	Fond Du Lac	Wisconsin
United States	Saint Agnes Hospital/Agnesian Cancer Center	Fond Du Lac	Wisconsin
United States	McFarland Clinic PC-Trinity Cancer Center	Fort Dodge	Iowa
United States	Trinity Regional Medical Center	Fort Dodge	Iowa
United States	Mercy Hospital Fort Smith	Fort Smith	Arkansas
United States	Saint Elizabeth Fort Thomas	Fort Thomas	Kentucky
United States	Essentia Health - Fosston	Fosston	Minnesota
United States	Beebe South Coastal Health Campus	Frankford	Delaware
United States	Ascension Saint Francis - Reiman Cancer Center	Franklin	Wisconsin
United States	Vanderbilt-Ingram Cancer Center at Franklin	Franklin	Tennessee
United States	Vanderbilt-Ingram Cancer Center Cool Springs	Franklin	Tennessee
United States	Kaiser Permanente-Fremont	Fremont	California
United States	Fresno Cancer Center	Fresno	California
United States	Kaiser Permanente-Fresno	Fresno	California
United States	Unity Hospital	Fridley	Minnesota
United States	Saint Luke's Cancer Institute - Fruitland	Fruitland	Idaho
United States	Gibbs Cancer Center-Gaffney	Gaffney	South Carolina
United States	University of Florida Health Science Center - Gainesville	Gainesville	Florida
United States	Illinois CancerCare-Galesburg	Galesburg	Illinois
United States	Western Illinois Cancer Treatment Center	Galesburg	Illinois
United States	University of Texas Medical Branch	Galveston	Texas
United States	Central Care Cancer Center - Garden City	Garden City	Kansas
United States	Northwestern Medicine Cancer Center Delnor	Geneva	Illinois
United States	Aurora Health Care Germantown Health Center	Germantown	Wisconsin
United States	The West Clinic - Wolf River	Germantown	Tennessee
United States	Adams Cancer Center	Gettysburg	Pennsylvania
United States	MultiCare Gig Harbor Medical Park	Gig Harbor	Washington
United States	UM Baltimore Washington Medical Center/Tate Cancer Center	Glen Burnie	Maryland
United States	Glens Falls Hospital	Glens Falls	New York
United States	Valley View Hospital Cancer Center	Glenwood Springs	Colorado
United States	Mountain Blue Cancer Care Center	Golden	Colorado
United States	National Jewish Health-Western Hematology Oncology	Golden	Colorado
United States	Aurora Cancer Care-Grafton	Grafton	Wisconsin
United States	Altru Cancer Center	Grand Forks	North Dakota
United States	CHI Health Saint Francis	Grand Island	Nebraska
United States	Grand Valley Oncology	Grand Junction	Colorado
United States	Saint Mary's Hospital and Regional Medical Center	Grand Junction	Colorado
United States	Helen DeVos Children's Hospital at Spectrum Health	Grand Rapids	Michigan
United States	Mercy Health Saint Mary's	Grand Rapids	Michigan
United States	Spectrum Health at Butterworth Campus	Grand Rapids	Michigan
United States	Central Care Cancer Center - Great Bend	Great Bend	Kansas
United States	Benefis Healthcare- Sletten Cancer Institute	Great Falls	Montana
United States	Great Falls Clinic	Great Falls	Montana
United States	North Colorado Medical Center	Greeley	Colorado
United States	Aurora BayCare Medical Center	Green Bay	Wisconsin
United States	Saint Vincent Hospital Cancer Center at Saint Mary's	Green Bay	Wisconsin
United States	Saint Vincent Hospital Cancer Center Green Bay	Green Bay	Wisconsin
United States	UPMC Cancer Centers - Arnold Palmer Pavilion	Greensburg	Pennsylvania
United States	Prisma Health Cancer Institute - Eastside	Greenville	South Carolina
United States	Prisma Health Cancer Institute - Faris	Greenville	South Carolina
United States	Saint Francis Cancer Center	Greenville	South Carolina
United States	Saint Francis Hospital	Greenville	South Carolina
United States	Gibbs Cancer Center-Pelham	Greer	South Carolina
United States	Prisma Health Cancer Institute - Greer	Greer	South Carolina
United States	Legacy Mount Hood Medical Center	Gresham	Oregon
United States	William Beaumont Hospital-Grosse Pointe	Grosse Pointe	Michigan
United States	Mount Carmel Grove City Hospital	Grove City	Ohio
United States	The Cancer Institute of New Jersey Hamilton	Hamilton	New Jersey
United States	Cherry Tree Cancer Center	Hanover	Pennsylvania
United States	UPMC Pinnacle Cancer Center/Community Osteopathic Campus	Harrisburg	Pennsylvania
United States	UPMC Pinnacle Harrisburg	Harrisburg	Pennsylvania
United States	Memorial Sloan Kettering Westchester	Harrison	New York
United States	HaysMed University of Kansas Health System	Hays	Kansas
United States	Geisinger Medical Center-Cancer Center Hazleton	Hazleton	Pennsylvania
United States	Saint Peter's Community Hospital	Helena	Montana
United States	21st Century Oncology-Henderson	Henderson	Nevada
United States	Cancer and Blood Specialists-Henderson	Henderson	Nevada
United States	Comprehensive Cancer Centers of Nevada - Henderson	Henderson	Nevada
United States	Comprehensive Cancer Centers of Nevada-Horizon Ridge	Henderson	Nevada
United States	Comprehensive Cancer Centers of Nevada-Southeast Henderson	Henderson	Nevada
United States	Las Vegas Cancer Center-Henderson	Henderson	Nevada
United States	Las Vegas Urology - Green Valley	Henderson	Nevada
United States	Las Vegas Urology - Pebble	Henderson	Nevada
United States	OptumCare Cancer Care at Seven Hills	Henderson	Nevada
United States	Urology Specialists of Nevada - Green Valley	Henderson	Nevada
United States	Essentia Health Hibbing Clinic	Hibbing	Minnesota
United States	South Carolina Cancer Specialists PC	Hilton Head Island	South Carolina
United States	The Radiation Oncology Center-Hilton Head/Bluffton	Hilton Head Island	South Carolina
United States	AMITA Health Cancer Institute and Outpatient Center	Hinsdale	Illinois
United States	Pulmonary Medicine Center of Chattanooga-Hixson	Hixson	Tennessee
United States	Memorial Regional Hospital/Joe DiMaggio Children's Hospital	Hollywood	Florida
United States	Loyola Medicine Homer Glen	Homer Glen	Illinois
United States	Kaiser Permanente Moanalua Medical Center	Honolulu	Hawaii
United States	CHI Saint Vincent Cancer Center Hot Springs	Hot Springs	Arkansas
United States	Mary Bird Perkins Cancer Center - Houma	Houma	Louisiana
United States	Ben Taub General Hospital	Houston	Texas
United States	Cleveland Clinic Cancer Center Independence	Independence	Ohio
United States	Swedish Cancer Institute-Issaquah	Issaquah	Washington
United States	Mayo Clinic in Florida	Jacksonville	Florida
United States	Essentia Health - Jamestown Clinic	Jamestown	North Dakota
United States	McFarland Clinic PC-Jefferson	Jefferson	Iowa
United States	Capital Region Southwest Campus	Jefferson City	Missouri
United States	Jefferson Hospital	Jefferson Hills	Pennsylvania
United States	Wellmont Medical Associates Oncology and Hematology-Johnson City	Johnson City	Tennessee
United States	UW Cancer Center Johnson Creek	Johnson Creek	Wisconsin
United States	UPMC-Johnstown/John P. Murtha Regional Cancer Center	Johnstown	Pennsylvania
United States	Freeman Health System	Joplin	Missouri
United States	Mercy Hospital Joplin	Joplin	Missouri
United States	Borgess Medical Center	Kalamazoo	Michigan
United States	Bronson Methodist Hospital	Kalamazoo	Michigan
United States	West Michigan Cancer Center	Kalamazoo	Michigan
United States	Kalispell Regional Medical Center	Kalispell	Montana
United States	The University of Kansas Cancer Center-South	Kansas City	Missouri
United States	Truman Medical Centers	Kansas City	Missouri
United States	University of Kansas Cancer Center	Kansas City	Kansas
United States	University of Kansas Cancer Center - North	Kansas City	Missouri
United States	University of Kansas Cancer Center-West	Kansas City	Kansas
United States	CHI Health Good Samaritan	Kearney	Nebraska
United States	Heartland Hematology and Oncology	Kearney	Nebraska
United States	Kadlec Clinic Hematology and Oncology	Kennewick	Washington
United States	Aurora Cancer Care-Kenosha South	Kenosha	Wisconsin
United States	Illinois CancerCare-Kewanee Clinic	Kewanee	Illinois
United States	Kingman Regional Medical Center	Kingman	Arizona
United States	Regional Cancer Center at Indian Path Community Hospital	Kingsport	Tennessee
United States	Wellmont Holston Valley Hospital and Medical Center	Kingsport	Tennessee
United States	AdventHealth Kissimmee	Kissimmee	Florida
United States	Gundersen Lutheran Medical Center	La Crosse	Wisconsin
United States	Mayo Clinic Health System-Franciscan Healthcare	La Crosse	Wisconsin
United States	Providence Regional Cancer System-Lacey	Lacey	Washington
United States	Good Samaritan Medical Center	Lafayette	Colorado
United States	Northwestern Medicine Lake Forest Hospital	Lake Forest	Illinois
United States	Northwell Health/Center for Advanced Medicine	Lake Success	New York
United States	Rocky Mountain Cancer Centers-Lakewood	Lakewood	Colorado
United States	Saint Anthony Hospital	Lakewood	Colorado
United States	Saint Clare Hospital	Lakewood	Washington
United States	Fairfield Medical Center	Lancaster	Ohio
United States	McLaren-Greater Lansing	Lansing	Michigan
United States	McLaren Cancer Institute-Lapeer Region	Lapeer	Michigan
United States	21st Century Oncology	Las Vegas	Nevada
United States	21st Century Oncology-Fort Apache	Las Vegas	Nevada
United States	21st Century Oncology-Vegas Tenaya	Las Vegas	Nevada
United States	Alliance for Childhood Diseases/Cure 4 the Kids Foundation	Las Vegas	Nevada
United States	Ann M Wierman MD LTD	Las Vegas	Nevada
United States	Cancer and Blood Specialists-Shadow	Las Vegas	Nevada
United States	Cancer and Blood Specialists-Tenaya	Las Vegas	Nevada
United States	Comprehensive Cancer Centers of Nevada	Las Vegas	Nevada
United States	Comprehensive Cancer Centers of Nevada - Central Valley	Las Vegas	Nevada
United States	Comprehensive Cancer Centers of Nevada - Northwest	Las Vegas	Nevada
United States	Comprehensive Cancer Centers of Nevada - Town Center	Las Vegas	Nevada
United States	Comprehensive Cancer Centers of Nevada-Summerlin	Las Vegas	Nevada
United States	Desert West Surgery	Las Vegas	Nevada
United States	HealthCare Partners Medical Group Oncology/Hematology-Centennial Hills	Las Vegas	Nevada
United States	HealthCare Partners Medical Group Oncology/Hematology-Maryland Parkway	Las Vegas	Nevada
United States	HealthCare Partners Medical Group Oncology/Hematology-San Martin	Las Vegas	Nevada
United States	HealthCare Partners Medical Group Oncology/Hematology-Tenaya	Las Vegas	Nevada
United States	Hope Cancer Care of Nevada	Las Vegas	Nevada
United States	Las Vegas Cancer Center-Medical Center	Las Vegas	Nevada
United States	Las Vegas Prostate Cancer Center	Las Vegas	Nevada
United States	Las Vegas Urology - Cathedral Rock	Las Vegas	Nevada
United States	Las Vegas Urology - Pecos	Las Vegas	Nevada
United States	Las Vegas Urology - Smoke Ranch	Las Vegas	Nevada
United States	Las Vegas Urology - Sunset	Las Vegas	Nevada
United States	OptumCare Cancer Care at Charleston	Las Vegas	Nevada
United States	OptumCare Cancer Care at Fort Apache	Las Vegas	Nevada
United States	OptumCare Cancer Care at MountainView	Las Vegas	Nevada
United States	Radiation Oncology Centers of Nevada Central	Las Vegas	Nevada
United States	Radiation Oncology Centers of Nevada Southeast	Las Vegas	Nevada
United States	Summerlin Hospital Medical Center	Las Vegas	Nevada
United States	Sunrise Hospital and Medical Center	Las Vegas	Nevada
United States	University Cancer Center	Las Vegas	Nevada
United States	University Medical Center of Southern Nevada	Las Vegas	Nevada
United States	Urology Specialists of Nevada - Central	Las Vegas	Nevada
United States	Urology Specialists of Nevada - Northwest	Las Vegas	Nevada
United States	Urology Specialists of Nevada - Southwest	Las Vegas	Nevada
United States	Lawrence Memorial Hospital	Lawrence	Kansas
United States	Sechler Family Cancer Center	Lebanon	Pennsylvania
United States	University of Kansas Cancer Center - Lee's Summit	Lee's Summit	Missouri
United States	Inova Loudoun Hospital	Leesburg	Virginia
United States	Beebe Medical Center	Lewes	Delaware
United States	Geisinger Medical Oncology-Lewisburg	Lewisburg	Pennsylvania
United States	Lewistown Hospital	Lewistown	Pennsylvania
United States	Saint Joseph Hospital East	Lexington	Kentucky
United States	Saint Joseph Radiation Oncology Resource Center	Lexington	Kentucky
United States	Condell Memorial Hospital	Libertyville	Illinois
United States	Saint Rita's Medical Center	Lima	Ohio
United States	Saint Elizabeth Regional Medical Center	Lincoln	Nebraska
United States	University of Arkansas for Medical Sciences	Little Rock	Arkansas
United States	Littleton Adventist Hospital	Littleton	Colorado
United States	Rocky Mountain Cancer Centers-Littleton	Littleton	Colorado
United States	Saint Barnabas Medical Center	Livingston	New Jersey
United States	Logan Regional Hospital	Logan	Utah
United States	Saint Joseph London	London	Kentucky
United States	Rocky Mountain Cancer Centers-Sky Ridge	Lone Tree	Colorado
United States	Sky Ridge Medical Center	Lone Tree	Colorado
United States	Longmont United Hospital	Longmont	Colorado
United States	Rocky Mountain Cancer Centers-Longmont	Longmont	Colorado
United States	PeaceHealth Saint John Medical Center	Longview	Washington
United States	Cedars Sinai Medical Center	Los Angeles	California
United States	Los Angeles County-USC Medical Center	Los Angeles	California
United States	USC / Norris Comprehensive Cancer Center	Los Angeles	California
United States	Jewish Hospital	Louisville	Kentucky
United States	Jewish Hospital Medical Center Northeast	Louisville	Kentucky
United States	Saints Mary and Elizabeth Hospital	Louisville	Kentucky
United States	The James Graham Brown Cancer Center at University of Louisville	Louisville	Kentucky
United States	McKee Medical Center	Loveland	Colorado
United States	Illinois CancerCare-Macomb	Macomb	Illinois
United States	University of Wisconsin Hospital and Clinics	Madison	Wisconsin
United States	Holy Family Memorial Hospital	Manitowoc	Wisconsin
United States	Mayo Clinic Health Systems-Mankato	Mankato	Minnesota
United States	Cleveland Clinic Cancer Center Mansfield	Mansfield	Ohio
United States	OhioHealth Mansfield Hospital	Mansfield	Ohio
United States	Fairview Clinics and Surgery Center Maple Grove	Maple Grove	Minnesota
United States	Minnesota Oncology Hematology PA-Maplewood	Maplewood	Minnesota
United States	Saint John's Hospital - Healtheast	Maplewood	Minnesota
United States	Marietta Memorial Hospital	Marietta	Ohio
United States	Aurora Bay Area Medical Group-Marinette	Marinette	Wisconsin
United States	Saint Vincent Hospital Cancer Center at Marinette	Marinette	Wisconsin
United States	OhioHealth Marion General Hospital	Marion	Ohio
United States	McFarland Clinic PC-Marshalltown	Marshalltown	Iowa
United States	Contra Costa Regional Medical Center	Martinez	California
United States	Carle Physician Group-Mattoon/Charleston	Mattoon	Illinois
United States	Hillcrest Hospital Cancer Center	Mayfield Heights	Ohio
United States	UH Seidman Cancer Center at Landerbrook Health Center	Mayfield Heights	Ohio
United States	Loyola University Medical Center	Maywood	Illinois
United States	UPMC Cancer Center at UPMC McKeesport	McKeesport	Pennsylvania
United States	Holy Redeemer Hospital and Medical Center	Meadowbrook	Pennsylvania
United States	UPMC Pinnacle West Shore	Mechanicsburg	Pennsylvania
United States	VCU Massey Cancer Center at Hanover Medical Park	Mechanicsville	Virginia
United States	Marjorie Weinberg Cancer Center at Loyola-Gottlieb	Melrose Park	Illinois
United States	Baptist Memorial Hospital and Cancer Center-Memphis	Memphis	Tennessee
United States	The West Clinic - Mid-Town	Memphis	Tennessee
United States	Froedtert Menomonee Falls Hospital	Menomonee Falls	Wisconsin
United States	Ascension Columbia Saint Mary's Hospital Ozaukee	Mequon	Wisconsin
United States	Idaho Urologic Institute-Meridian	Meridian	Idaho
United States	Saint Luke's Cancer Institute - Meridian	Meridian	Idaho
United States	University of Miami Miller School of Medicine-Sylvester Cancer Center	Miami	Florida
United States	UH Seidman Cancer Center at Southwest General Hospital	Middleburg Heights	Ohio
United States	Memorial Sloan Kettering Monmouth	Middletown	New Jersey
United States	Middlesex Hospital	Middletown	Connecticut
United States	Ascension Columbia Saint Mary's Hospital - Milwaukee	Milwaukee	Wisconsin
United States	Aurora Cancer Care-Milwaukee	Milwaukee	Wisconsin
United States	Aurora Saint Luke's Medical Center	Milwaukee	Wisconsin
United States	Aurora Sinai Medical Center	Milwaukee	Wisconsin
United States	Medical College of Wisconsin	Milwaukee	Wisconsin
United States	Abbott-Northwestern Hospital	Minneapolis	Minnesota
United States	Health Partners Inc	Minneapolis	Minnesota
United States	Hennepin County Medical Center	Minneapolis	Minnesota
United States	Community Medical Hospital	Missoula	Montana
United States	Saint Patrick Hospital - Community Hospital	Missoula	Montana
United States	Kaiser Permanente-Modesto	Modesto	California
United States	Trinity Medical Center	Moline	Illinois
United States	Forbes Hospital	Monroeville	Pennsylvania
United States	Intercommunity Cancer Center	Monroeville	Pennsylvania
United States	UPMC Cancer Center - Monroeville	Monroeville	Pennsylvania
United States	Monticello Cancer Center	Monticello	Minnesota
United States	Memorial Sloan Kettering Bergen	Montvale	New Jersey
United States	UPMC-Coraopolis/Heritage Valley Radiation Oncology	Moon	Pennsylvania
United States	Virtua Samson Cancer Center	Moorestown	New Jersey
United States	McLaren Cancer Institute-Macomb	Mount Clemens	Michigan
United States	Virtua Memorial	Mount Holly	New Jersey
United States	Northern Westchester Hospital	Mount Kisco	New York
United States	McLaren Cancer Institute-Central Michigan	Mount Pleasant	Michigan
United States	Good Samaritan Regional Health Center	Mount Vernon	Illinois
United States	Knox Community Hospital	Mount Vernon	Ohio
United States	Intermountain Medical Center	Murray	Utah
United States	Mercy Health Mercy Campus	Muskegon	Michigan
United States	Saint Alphonsus Medical Center-Nampa	Nampa	Idaho
United States	Saint Luke's Cancer Institute - Nampa	Nampa	Idaho
United States	Vanderbilt Breast Center at One Hundred Oaks	Nashville	Tennessee
United States	Vanderbilt University/Ingram Cancer Center	Nashville	Tennessee
United States	Rutgers Cancer Institute of New Jersey	New Brunswick	New Jersey
United States	UPMC Jameson	New Castle	Pennsylvania
United States	UC Comprehensive Cancer Center at Silver Cross	New Lenox	Illinois
United States	Louisiana State University Health Science Center	New Orleans	Louisiana
United States	Ochsner Medical Center Jefferson	New Orleans	Louisiana
United States	University Medical Center New Orleans	New Orleans	Louisiana
United States	Cancer Center of Western Wisconsin	New Richmond	Wisconsin
United States	New Ulm Medical Center	New Ulm	Minnesota
United States	Laura and Isaac Perlmutter Cancer Center at NYU Langone	New York	New York
United States	Lenox Hill Hospital	New York	New York
United States	Memorial Sloan Kettering Cancer Center	New York	New York
United States	NYP/Columbia University Medical Center/Herbert Irving Comprehensive Cancer Center	New York	New York
United States	Christiana Care Health System-Christiana Hospital	Newark	Delaware
United States	Delaware Clinical and Laboratory Physicians PA	Newark	Delaware
United States	Helen F Graham Cancer Center	Newark	Delaware
United States	Licking Memorial Hospital	Newark	Ohio
United States	Medical Oncology Hematology Consultants PA	Newark	Delaware
United States	Newark Radiation Oncology	Newark	Ohio
United States	Rutgers New Jersey Medical School	Newark	New Jersey
United States	Providence Newberg Medical Center	Newberg	Oregon
United States	Piedmont Newnan Hospital	Newnan	Georgia
United States	USC Norris Oncology/Hematology-Newport Beach	Newport Beach	California
United States	Lakeland Hospital Niles	Niles	Michigan
United States	Mayo Clinic Radiation Therapy-Northfield	Northfield	Minnesota
United States	Southwest VA Regional Cancer Center	Norton	Virginia
United States	Cancer and Hematology Centers of Western Michigan - Norton Shores	Norton Shores	Michigan
United States	Cancer Care Center of O'Fallon	O'Fallon	Illinois
United States	Alta Bates Summit Medical Center - Summit Campus	Oakland	California
United States	Bay Area Tumor Institute	Oakland	California
United States	Kaiser Permanente Oakland-Broadway	Oakland	California
United States	Kaiser Permanente-Oakland	Oakland	California
United States	TidalHealth Richard A Henson Cancer Institute	Ocean Pines	Maryland
United States	Saint Vincent Hospital Cancer Center at Oconto Falls	Oconto Falls	Wisconsin
United States	McKay-Dee Hospital Center	Ogden	Utah
United States	Ogden Regional Medical Center	Ogden	Utah
United States	Mercy Hospital Oklahoma City	Oklahoma City	Oklahoma
United States	University of Oklahoma Health Sciences Center	Oklahoma City	Oklahoma
United States	Olathe Health Cancer Center	Olathe	Kansas
United States	Alegent Health Bergan Mercy Medical Center	Omaha	Nebraska
United States	Alegent Health Immanuel Medical Center	Omaha	Nebraska
United States	Alegent Health Lakeside Hospital	Omaha	Nebraska
United States	Creighton University Medical Center	Omaha	Nebraska
United States	Hematology and Oncology Consultants PC	Omaha	Nebraska
United States	Nebraska Methodist Hospital	Omaha	Nebraska
United States	Upstate Cancer Center Radiation Oncology at Oneida	Oneida	New York
United States	Saint Alphonsus Medical Center-Ontario	Ontario	Oregon
United States	Memorial GYN Plus	Ooltewah	Tennessee
United States	Saint Joseph Hospital - Orange	Orange	California
United States	UC Irvine Health/Chao Family Comprehensive Cancer Center	Orange	California
United States	University of Chicago Medicine-Orland Park	Orland Park	Illinois
United States	AdventHealth East Orlando	Orlando	Florida
United States	AdventHealth Medical Group Urology at Orlando	Orlando	Florida
United States	AdventHealth Orlando	Orlando	Florida
United States	Vince Lombardi Cancer Clinic - Oshkosh	Oshkosh	Wisconsin
United States	Upstate Cancer Center Radiation Oncology at Oswego	Oswego	New York
United States	Illinois CancerCare-Ottawa Clinic	Ottawa	Illinois
United States	University of Kansas Cancer Center-Overland Park	Overland Park	Kansas
United States	University of Kansas Hospital-Indian Creek Campus	Overland Park	Kansas
United States	McLaren Cancer Institute-Owosso	Owosso	Michigan
United States	Baptist Memorial Hospital and Cancer Center-Oxford	Oxford	Mississippi
United States	Hope Cancer Care of Nevada-Pahrump	Pahrump	Nevada
United States	Midlands Community Hospital	Papillion	Nebraska
United States	Essentia Health - Park Rapids	Park Rapids	Minnesota
United States	Parker Adventist Hospital	Parker	Colorado
United States	Rocky Mountain Cancer Centers-Parker	Parker	Colorado
United States	Keck Medical Center of USC Pasadena	Pasadena	California
United States	Illinois CancerCare-Pekin	Pekin	Illinois
United States	OSF Saint Francis Radiation Oncology at Pekin Cancer Treatment Center	Pekin	Illinois
United States	Memorial Hospital West	Pembroke Pines	Florida
United States	Illinois CancerCare-Peoria	Peoria	Illinois
United States	Methodist Medical Center of Illinois	Peoria	Illinois
United States	OSF Saint Francis Medical Center	Peoria	Illinois
United States	OSF Saint Francis Radiation Oncology at Peoria Cancer Center	Peoria	Illinois
United States	Mercy Health Perrysburg Cancer Center	Perrysburg	Ohio
United States	Illinois CancerCare-Peru	Peru	Illinois
United States	Valley Radiation Oncology	Peru	Illinois
United States	McLaren Cancer Institute-Northern Michigan	Petoskey	Michigan
United States	Aria Health-Torresdale Campus	Philadelphia	Pennsylvania
United States	Fox Chase Cancer Center	Philadelphia	Pennsylvania
United States	Thomas Jefferson University Hospital	Philadelphia	Pennsylvania
United States	Cancer Center at Saint Joseph's	Phoenix	Arizona
United States	Ascension Via Christi - Pittsburg	Pittsburg	Kansas
United States	Allegheny General Hospital	Pittsburgh	Pennsylvania
United States	University of Pittsburgh Cancer Institute (UPCI)	Pittsburgh	Pennsylvania
United States	UPMC-Magee Womens Hospital	Pittsburgh	Pennsylvania
United States	UPMC-Passavant Hospital	Pittsburgh	Pennsylvania
United States	UPMC-Presbyterian Hospital	Pittsburgh	Pennsylvania
United States	UPMC-Saint Clair Hospital Cancer Center	Pittsburgh	Pennsylvania
United States	UPMC-Saint Margaret	Pittsburgh	Pennsylvania
United States	UPMC-Shadyside Hospital	Pittsburgh	Pennsylvania
United States	West Penn Hospital	Pittsburgh	Pennsylvania
United States	Huron Medical Center PC	Port Huron	Michigan
United States	McLaren-Port Huron	Port Huron	Michigan
United States	Jefferson Healthcare	Port Townsend	Washington
United States	Legacy Good Samaritan Hospital and Medical Center	Portland	Oregon
United States	Oregon Health and Science University	Portland	Oregon
United States	Providence Portland Medical Center	Portland	Oregon
United States	Providence Saint Vincent Medical Center	Portland	Oregon
United States	Naval Medical Center - Portsmouth	Portsmouth	Virginia
United States	Southern Ohio Medical Center	Portsmouth	Ohio
United States	Kootenai Clinic Cancer Services - Post Falls	Post Falls	Idaho
United States	Geisinger Cancer Services-Pottsville	Pottsville	Pennsylvania
United States	Harrison HealthPartners Hematology and Oncology-Poulsbo	Poulsbo	Washington
United States	Fairview Northland Medical Center	Princeton	Minnesota
United States	Illinois CancerCare-Princeton	Princeton	Illinois
United States	Utah Valley Regional Medical Center	Provo	Utah
United States	Rocky Mountain Cancer Centers - Pueblo	Pueblo	Colorado
United States	Saint Mary Corwin Medical Center	Pueblo	Colorado
United States	MultiCare Good Samaritan Hospital	Puyallup	Washington
United States	Ascension All Saints Hospital	Racine	Wisconsin
United States	Aurora Cancer Care-Racine	Racine	Wisconsin
United States	Kaiser Permanente-Rancho Cordova Cancer Center	Rancho Cordova	California
United States	University Hospitals Portage Medical Center	Ravenna	Ohio
United States	Saint Charles Health System-Redmond	Redmond	Oregon
United States	Kaiser Permanente- Marshall Medical Offices	Redwood City	California
United States	Kaiser Permanente-Redwood City	Redwood City	California
United States	Spectrum Health Reed City Hospital	Reed City	Michigan
United States	Beebe Health Campus	Rehoboth Beach	Delaware
United States	Radiation Oncology Associates	Reno	Nevada
United States	Renown Regional Medical Center	Reno	Nevada
United States	Saint Mary's Regional Medical Center	Reno	Nevada
United States	Valley Medical Center	Renton	Washington
United States	Kaiser Permanente-Richmond	Richmond	California
United States	VCU Massey Cancer Center at Stony Point	Richmond	Virginia
United States	Virginia Commonwealth University/Massey Cancer Center	Richmond	Virginia
United States	Riverton Hospital	Riverton	Utah
United States	North Memorial Medical Health Center	Robbinsdale	Minnesota
United States	Highland Hospital	Rochester	New York
United States	Mayo Clinic in Rochester	Rochester	Minnesota
United States	University of Rochester	Rochester	New York
United States	Wilmot Cancer Institute Radiation Oncology at Greece	Rochester	New York
United States	SwedishAmerican Regional Cancer Center/ACT	Rockford	Illinois
United States	Rohnert Park Cancer Center	Rohnert Park	California
United States	Delbert Day Cancer Institute at PCRMC	Rolla	Missouri
United States	Mercy Clinic-Rolla-Cancer and Hematology	Rolla	Missouri
United States	Kaiser Permanente-Roseville	Roseville	California
United States	Michigan Cancer Specialists	Roseville	Michigan
United States	The Permanente Medical Group-Roseville Radiation Oncology	Roseville	California
United States	Cancer Care Associates PC	Royal Oak	Michigan
United States	Comprehensive Medical Center PLLC	Royal Oak	Michigan
United States	Hematology Oncology Consultants PC	Royal Oak	Michigan
United States	Oakland Colon Rectal Associates	Royal Oak	Michigan
United States	Oakland Medical Group	Royal Oak	Michigan
United States	William Beaumont Hospital-Royal Oak	Royal Oak	Michigan
United States	Kaiser Permanente - Sacramento	Sacramento	California
United States	Kaiser Permanente Downtown Commons	Sacramento	California
United States	Kaiser Permanente-South Sacramento	Sacramento	California
United States	South Sacramento Cancer Center	Sacramento	California
United States	Dixie Medical Center Regional Cancer Center	Saint George	Utah
United States	Heartland Regional Medical Center	Saint Joseph	Missouri
United States	Lakeland Medical Center Saint Joseph	Saint Joseph	Michigan
United States	Marie Yeager Cancer Center	Saint Joseph	Michigan
United States	Mercy Hospital Saint Louis	Saint Louis	Missouri
United States	Mercy Hospital South	Saint Louis	Missouri
United States	Missouri Baptist Medical Center	Saint Louis	Missouri
United States	Saint Louis Cancer and Breast Institute-South City	Saint Louis	Missouri
United States	Siteman Cancer Center-South County	Saint Louis	Missouri
United States	Washington University School of Medicine	Saint Louis	Missouri
United States	Park Nicollet Clinic - Saint Louis Park	Saint Louis Park	Minnesota
United States	Regions Hospital	Saint Paul	Minnesota
United States	United Hospital	Saint Paul	Minnesota
United States	Siteman Cancer Center at Saint Peters Hospital	Saint Peters	Missouri
United States	Sainte Genevieve County Memorial Hospital	Sainte Genevieve	Missouri
United States	Salina Regional Health Center	Salina	Kansas
United States	TidalHealth Peninsula Regional	Salisbury	Maryland
United States	Huntsman Cancer Institute/University of Utah	Salt Lake City	Utah
United States	LDS Hospital	Salt Lake City	Utah
United States	University of Utah Sugarhouse Health Center	Salt Lake City	Utah
United States	Utah Cancer Specialists-Salt Lake City	Salt Lake City	Utah
United States	Kaiser Permanente-San Francisco	San Francisco	California
United States	Kaiser Permanente-Santa Teresa-San Jose	San Jose	California
United States	Kaiser Permanente San Leandro	San Leandro	California
United States	Pacific Central Coast Health Center-San Luis Obispo	San Luis Obispo	California
United States	Kaiser Permanente-San Rafael	San Rafael	California
United States	Kaiser San Rafael-Gallinas	San Rafael	California
United States	Kootenai Cancer Clinic	Sandpoint	Idaho
United States	Essentia Health Sandstone	Sandstone	Minnesota
United States	North Coast Cancer Care	Sandusky	Ohio
United States	UH Seidman Cancer Center at Firelands Regional Medical Center	Sandusky	Ohio
United States	Kaiser Permanente Medical Center - Santa Clara	Santa Clara	California
United States	Mission Hope Medical Oncology - Santa Maria	Santa Maria	California
United States	Kaiser Permanente-Santa Rosa	Santa Rosa	California
United States	Lewis Cancer and Research Pavilion at Saint Joseph's/Candler	Savannah	Georgia
United States	Low Country Cancer Care Associates PC	Savannah	Georgia
United States	Summit Cancer Care-Candler	Savannah	Georgia
United States	Guthrie Medical Group PC-Robert Packer Hospital	Sayre	Pennsylvania
United States	Community Medical Center	Scranton	Pennsylvania
United States	TidalHealth Nanticoke / Allen Cancer Center	Seaford	Delaware
United States	Kaiser Permanente Washington	Seattle	Washington
United States	Pacific Gynecology Specialists	Seattle	Washington
United States	Swedish Medical Center-Ballard Campus	Seattle	Washington
United States	Swedish Medical Center-Cherry Hill	Seattle	Washington
United States	Swedish Medical Center-First Hill	Seattle	Washington
United States	PeaceHealth United General Medical Center	Sedro-Woolley	Washington
United States	Prisma Health Cancer Institute - Seneca	Seneca	South Carolina
United States	UPMC Cancer Center at UPMC Northwest	Seneca	Pennsylvania
United States	Kennedy Health Systems-Cancer Center	Sewell	New Jersey
United States	Saint Francis Regional Medical Center	Shakopee	Minnesota
United States	HSHS Saint Nicholas Hospital	Sheboygan	Wisconsin
United States	Vince Lombardi Cancer Clinic-Sheboygan	Sheboygan	Wisconsin
United States	Providence Regional Cancer System-Shelton	Shelton	Washington
United States	Jewish Hospital Medical Center South	Shepherdsville	Kentucky
United States	Welch Cancer Center	Sheridan	Wyoming
United States	Holy Cross Hospital	Silver Spring	Maryland
United States	Sanford Cancer Center Oncology Clinic	Sioux Falls	South Dakota
United States	Sanford USD Medical Center - Sioux Falls	Sioux Falls	South Dakota
United States	Phelps Memorial Hospital Center	Sleepy Hollow	New York
United States	Robert Wood Johnson University Hospital Somerset	Somerville	New Jersey
United States	South Jordan Health Center	South Jordan	Utah
United States	City of Hope South Pasadena	South Pasadena	California
United States	Kaiser Permanente Cancer Treatment Center	South San Francisco	California
United States	Kaiser Permanente-South San Francisco	South San Francisco	California
United States	The West Clinic - Southaven	Southaven	Mississippi
United States	Spartanburg Medical Center	Spartanburg	South Carolina
United States	Spartanburg Medical Center - Mary Black Campus	Spartanburg	South Carolina
United States	MultiCare Deaconess Cancer and Blood Specialty Center - Downtown	Spokane	Washington
United States	MultiCare Deaconess Cancer and Blood Specialty Center - North	Spokane	Washington
United States	MultiCare Deaconess Cancer and Blood Specialty Center - Valley	Spokane Valley	Washington
United States	CoxHealth South Hospital	Springfield	Missouri
United States	Memorial Medical Center	Springfield	Illinois
United States	Mercy Hospital Springfield	Springfield	Missouri
United States	Southern Illinois University School of Medicine	Springfield	Illinois
United States	Springfield Clinic	Springfield	Illinois
United States	Staten Island University Hospital	Staten Island	New York
United States	Mitchell Folbe MD PC	Sterling Heights	Michigan
United States	Premier Hematology Oncology Care	Sterling Heights	Michigan
United States	Lakeview Hospital	Stillwater	Minnesota
United States	Piedmont Henry Hospital	Stockbridge	Georgia
United States	Kaiser Permanente-Stockton	Stockton	California
United States	Stony Brook University Medical Center	Stony Brook	New York
United States	Cleveland Clinic Cancer Center Strongsville	Strongsville	Ohio
United States	Saint Vincent Hospital Cancer Center at Sturgeon Bay	Sturgeon Bay	Wisconsin
United States	Missouri Baptist Sullivan Hospital	Sullivan	Missouri
United States	Aurora Medical Center in Summit	Summit	Wisconsin
United States	Overlook Hospital	Summit	New Jersey
United States	Missouri Baptist Outpatient Center-Sunset Hills	Sunset Hills	Missouri
United States	Southwest Illinois Health Services LLP	Swansea	Illinois
United States	Hematology Oncology Associates of Central New York-Onondaga Hill	Syracuse	New York
United States	State University of New York Upstate Medical University	Syracuse	New York
United States	SUNY Upstate Medical Center-Community Campus	Syracuse	New York
United States	Upstate Cancer Center at Hill Radiation Oncology	Syracuse	New York
United States	Franciscan Research Center-Northwest Medical Plaza	Tacoma	Washington
United States	Mary Bridge Children's Hospital and Health Center	Tacoma	Washington
United States	MultiCare Tacoma General Hospital	Tacoma	Washington
United States	Northwest Medical Specialties PLLC	Tacoma	Washington
United States	Moffitt Cancer Center	Tampa	Florida
United States	Moffitt Cancer Center - McKinley Campus	Tampa	Florida
United States	Moffitt Cancer Center-International Plaza	Tampa	Florida
United States	Sanford Thief River Falls Medical Center	Thief River Falls	Minnesota
United States	National Jewish Health-Northern Hematology Oncology	Thornton	Colorado
United States	Rocky Mountain Cancer Centers-Thornton	Thornton	Colorado
United States	Mercy Health - Saint Anne Hospital	Toledo	Ohio
United States	Saint Vincent Mercy Medical Center	Toledo	Ohio
United States	Community Medical Center	Toms River	New Jersey
United States	University of Kansas Health System Saint Francis Campus	Topeka	Kansas
United States	Torrance Memorial Medical Center	Torrance	California
United States	Torrance Memorial Physician Network - Cancer Care	Torrance	California
United States	UM Saint Joseph Medical Center	Towson	Maryland
United States	Munson Medical Center	Traverse City	Michigan
United States	Claudia BR Herke MD PC	Troy	Michigan
United States	Hematology Oncology Consultants PC-Troy	Troy	Michigan
United States	Michigan Institute of Urology-Town Center	Troy	Michigan
United States	William Beaumont Hospital - Troy	Troy	Michigan
United States	Legacy Meridian Park Hospital	Tualatin	Oregon
United States	Saint Luke's Cancer Institute - Twin Falls	Twin Falls	Idaho
United States	Vince Lombardi Cancer Clinic-Two Rivers	Two Rivers	Wisconsin
United States	MGC Hematology Oncology-Union	Union	South Carolina
United States	Memorial Sloan Kettering Nassau	Uniondale	New York
United States	UPMC Uniontown Hospital Radiation Oncology	Uniontown	Pennsylvania
United States	Carle Cancer Center	Urbana	Illinois
United States	The Carle Foundation Hospital	Urbana	Illinois
United States	Kaiser Permanente Medical Center-Vacaville	Vacaville	California
United States	Kaiser Permanente-Vallejo	Vallejo	California
United States	Legacy Cancer Institute Medical Oncology and Day Treatment	Vancouver	Washington
United States	Legacy Salmon Creek Hospital	Vancouver	Washington
United States	PeaceHealth Southwest Medical Center	Vancouver	Washington
United States	Essentia Health Virginia Clinic	Virginia	Minnesota
United States	Virtua Voorhees	Voorhees	New Jersey
United States	Ridgeview Medical Center	Waconia	Minnesota
United States	Providence Saint Mary Regional Cancer Center	Walla Walla	Washington
United States	Epic Care Cyberknife Center	Walnut Creek	California
United States	Kaiser Permanente-Walnut Creek	Walnut Creek	California
United States	Northwestern Medicine Cancer Center Warrenville	Warrenville	Illinois
United States	George Washington University Medical Center	Washington	District of Columbia
United States	Illinois CancerCare - Washington	Washington	Illinois
United States	Mercy Hospital Washington	Washington	Missouri
United States	UPMC Washington Hospital Radiation Oncology	Washington	Pennsylvania
United States	Aurora Cancer Care-Milwaukee West	Wauwatosa	Wisconsin
United States	Aurora West Allis Medical Center	West Allis	Wisconsin
United States	Froedtert West Bend Hospital/Kraemer Cancer Center	West Bend	Wisconsin
United States	Henry Ford West Bloomfield Hospital	West Bloomfield	Michigan
United States	University of Cincinnati Cancer Center-West Chester	West Chester	Ohio
United States	Mercy Medical Center-West Lakes	West Des Moines	Iowa
United States	Methodist West Hospital	West Des Moines	Iowa
United States	Reading Hospital	West Reading	Pennsylvania
United States	Saint Ann's Hospital	Westerville	Ohio
United States	UHHS-Westlake Medical Center	Westlake	Ohio
United States	University of Kansas Hospital-Westwood Cancer Center	Westwood	Kansas
United States	Wexford Health and Wellness Pavilion	Wexford	Pennsylvania
United States	SCL Health Lutheran Medical Center	Wheat Ridge	Colorado
United States	Ascension Via Christi Hospitals Wichita	Wichita	Kansas
United States	Geisinger Wyoming Valley/Henry Cancer Center	Wilkes-Barre	Pennsylvania
United States	Rice Memorial Hospital	Willmar	Minnesota
United States	Abington Memorial Hospital-Asplundh Cancer Pavilion	Willow Grove	Pennsylvania
United States	Christiana Care Health System-Wilmington Hospital	Wilmington	Delaware
United States	AdventHealth Winter Park	Winter Park	Florida
United States	Aspirus Cancer Care - Wisconsin Rapids	Wisconsin Rapids	Wisconsin
United States	Minnesota Oncology Hematology PA-Woodbury	Woodbury	Minnesota
United States	Cleveland Clinic Wooster Family Health and Surgery Center	Wooster	Ohio
United States	Sanford Cancer Center Worthington	Worthington	Minnesota
United States	Henry Ford Wyandotte Hospital	Wyandotte	Michigan
United States	Fairview Lakes Medical Center	Wyoming	Minnesota
United States	Metro Health Hospital	Wyoming	Michigan
United States	North Star Lodge Cancer Center at Yakima Valley Memorial Hospital	Yakima	Washington
United States	Providence Regional Cancer System-Yelm	Yelm	Washington
United States	UPMC Memorial	York	Pennsylvania
United States	WellSpan Health-York Cancer Center	York	Pennsylvania
United States	WellSpan Health-York Hospital	York	Pennsylvania
United States	Rush-Copley Healthcare Center	Yorkville	Illinois
United States	Genesis Healthcare System Cancer Care Center	Zanesville	Ohio

Sponsors (3)

Lead Sponsor	Collaborator
Alliance for Clinical Trials in Oncology	Canadian Cancer Trials Group, National Cancer Institute (NCI)

Countries where clinical trial is conducted

United States,  Canada, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Rate of breast reconstruction complications	Will be tested using a two-sample test of proportions. The test statistic will be calculated and interim analysis for futility will be performed. The primary analyses will be an intent-to-treat analysis where all patients randomized will be included in the analysis and will be analyzed based on the arm they were randomized to regardless of actual radiation schedule received. Due to the random treatment assignment with stratification for the timing of reconstruction and type of reconstruction, it is expected that the baseline patient characteristics, including the planned reconstruction procedures, are roughly balanced across the two treatment arms. A sensitivity analysis stratified by timing and type of reconstruction surgery will be conducted.	At 24 months
Secondary	Incidence of acute and late radiation complications based on Common Terminology Criteria for Adverse Events 4.0 toxicity	The proportion of patients with acute or late radiation complications, will be estimated separately by treatment arm and will be compared across the two arms using two-sample test of proportions (Z test) with a two-sided alternative.	Up to 5 years
Secondary	Local and local regional recurrence	The cumulative incidence of local and local regional recurrence will be estimated separately by treatment arm using the cumulative incidence function treating death as the competing risk and will be compared using Gray's test.	Up to 5 years
Secondary	Local and local regional recurrence-free survival	Local and local regional recurrence free survival will be summarized for each arm using the Kaplan-Meier estimators, and will be compared using a log rank test.	Up to 5 years
Secondary	Reconstruction complication rates based on reconstruction method (autologous +/- implant versus [vs.] implant only) and timing of reconstruction received (immediate vs. intent for delayed)	Between-arm differences in reconstruction complication rates will be assessed separately within each of the six subgroups based on type and timing of reconstruction. Between-arm differences in complication rates will also be assessed within the two broader subgroups of patients who receive implant only and those who receive autologous based reconstruction. Within each subgroup, the comparison will be done using a two-sample Z test of proportions with a two-sided alternative.	Up to 5 years
Secondary	Reconstructed breast photographic cosmetic scores	Two year photographic cosmetic scores will be summarized by treatment arm and will be compared across the treatment arms using a Wilcoxon rank-sum test with a two-sided alternative. The proportions of patients with poor global cosmetic score (defined as a cosmetic score of 3: poor or large difference) at 24 months after radiation will be summarized separately by treatment arm and will be compared using a two-sample test of proportions with a two-sided alternative.	At 24 months
Secondary	Reconstructed breast photographic cosmetic scores based on the method and timing of reconstruction received	Two year photographic cosmetic scores and the proportions of patients with poor global cosmetic score will be assessed separately by timing and method of reconstruction subgroups using similar method described above.	At 24 months
Secondary	Incidence of arm lymphedema as measured by percent change in ipsilateral arm volume post-radiation from its pre-radiation volume	The proportions of patients with arm lymphedema (defined as a change of 10% or greater in ipsilateral arm volume from the pre-radiation therapy [RT] volume) at 2 year post radiation will be summarized and will be compared across the two treatment arms using a two-sample test of proportions (Z test) with a two-sided alternative. Change in ipsilateral arm volume at each of the following time-points: 6, 12, 24 and 60 months post-radiation (relative to pre-RT) will be compared using a two sample t-test with a two-sided alternative. The changes in arm volume at these time points will also be analyzed as a repeated measure using a linear mixed model with patient as the random effect.	Up to 5 years
Secondary	Physical well-being, psychosocial well-being, sexual well-being, satisfaction with breast/nipples/abdomen, and satisfaction with overall outcome	Change in Lymphedema and Breast Cancer Questionnaire and Breast Lymphedema scores at 24 months post-radiation (relative to pre-RT) and patient satisfaction scores as measured by the Breast Questionnaire overall outcome scale will be summarized and will be compared across the treatment arms using a two-sample t-test with a two-sided alternative. Linear mixed models will also be used to assess these scores longitudinally.	At to 24 months
Secondary	Patient satisfaction with trial participation by treatment arm as measured by the Was It Worth It Questionnaire	Was It Worth It questionnaire responses to each of the five questions at 24 months will be summarized and the will be compared across treatment arms using a chi-square tests with a two-sided alternative.	At 24 months
Secondary	Economic analyses	Direct costs of medical care to each patient will be estimated using utilization information from the health care expense survey and the health care utilization survey, along with publicly available Medicare reimbursement rates. In particular, based on the reported number of outpatient visits to the radiation oncologist, medical oncologist, surgeon who performed mastectomy, plastic surgeon or physical therapist, and the number of visits to the emergency room, the number of hospital admissions, and the number of surgical procedures to breast reconstruction, Medicare reimbursement rates can be used to estimate what the direct cost to each patient would be if that patient were covered by Medicare. Generalized linear models will then be used to model these costs as a function of treatment, time on study, and all available baseline patient characteristics to assess the extent to which estimated direct cost is impacted by the type of radiation dosing.	Up to 5 years