Medroxyprogesterone Acetate With or Without Entinostat Before Surgery in Treating Patients With Endometrioid Endometrial Cancer

State University of New York Downstate Medical Center, Brooklyn

Women's Cancer Care Associates LLC, Albany

Roswell Park Cancer Institute, Buffalo

University of Rochester, Rochester

UPMC-Heritage Valley Health System Beaver, Beaver

UPMC-Coraopolis/Heritage Valley Radiation Oncology, Moon Township

UPMC Cancer Center at UPMC McKeesport, McKeesport

UPMC-Magee Womens Hospital, Pittsburgh

UPMC-Presbyterian Hospital, Pittsburgh

UPMC-Saint Margaret, Pittsburgh

University of Pittsburgh Cancer Institute (UPCI), Pittsburgh

UPMC-Shadyside Hospital, Pittsburgh

UPMC-Passavant Hospital, Pittsburgh

UPMC-Saint Clair Hospital Cancer Center, Pittsburgh

UPMC Washington Hospital Radiation Oncology, Washington

UPMC Uniontown Hospital Radiation Oncology, Uniontown

UPMC Cancer Centers - Arnold Palmer Pavilion, Greensburg

UPMC-Johnstown/John P. Murtha Regional Cancer Center, Johnstown

UPMC Cancer Center at UPMC Northwest, Seneca

Geisinger Medical Group, State College

Lewistown Hospital, Lewistown

Geisinger Medical Center, Danville

Geisinger Medical Oncology-Lewisburg, Lewisburg

Geisinger Medical Oncology-Selinsgrove, Selinsgrove

Geisinger Cancer Services-Pottsville, Pottsville

Geisinger Medical Center-Cancer Center Hazleton, Hazleton

Community Medical Center, Scranton

Geisinger Wyoming Valley/Henry Cancer Center, Wilkes-Barre

Abington Memorial Hospital, Abington

Christiana Care Health System-Concord Health Center, Chadds Ford

Delaware Clinical and Laboratory Physicians PA, Newark

Helen F Graham Cancer Center, Newark

Medical Oncology Hematology Consultants PA, Newark

Christiana Care Health System-Christiana Hospital, Newark

Christiana Care Health System-Wilmington Hospital, Wilmington

Beebe Medical Center, Lewes

Beebe Health Campus, Rehoboth Beach

TidalHealth Nanticoke / Allen Cancer Center, Seaford

Greater Baltimore Medical Center, Baltimore

University of Virginia Cancer Center, Charlottesville

Wake Forest University Health Sciences, Winston-Salem

Duke University Medical Center, Durham

Prisma Health Cancer Institute - Spartanburg, Spartanburg

Prisma Health Cancer Institute - Laurens, Clinton

Prisma Health Cancer Institute - Butternut, Greenville

Prisma Health Cancer Institute - Faris, Greenville

Prisma Health Greenville Memorial Hospital, Greenville

Prisma Health Cancer Institute - Eastside, Greenville

Prisma Health Cancer Institute - Easley, Easley

Prisma Health Cancer Institute - Greer, Greer

Prisma Health Cancer Institute - Seneca, Seneca

Sacred Heart Hospital, Pensacola

Vanderbilt-Ingram Cancer Center Cool Springs, Franklin

Vanderbilt Breast Center at One Hundred Oaks, Nashville

Vanderbilt University/Ingram Cancer Center, Nashville

Pulmonary Medicine Center of Chattanooga-Hixson, Hixson

Memorial GYN Plus, Ooltewah

Memorial Hospital, Chattanooga

Flaget Memorial Hospital, Bardstown

Jewish Hospital Medical Center South, Shepherdsville

Jewish Hospital, Louisville

Saints Mary and Elizabeth Hospital, Louisville

Jewish Hospital Medical Center Northeast, Louisville

Saint Joseph Radiation Oncology Resource Center, Lexington

Saint Joseph Hospital East, Lexington

Commonwealth Cancer Center-Corbin, Corbin

Saint Joseph London, London

Delaware Health Center-Grady Cancer Center, Delaware

Delaware Radiation Oncology, Delaware

Grady Memorial Hospital, Delaware

Knox Community Hospital, Mount Vernon

Licking Memorial Hospital, Newark

Newark Radiation Oncology, Newark

Saint Ann's Hospital, Westerville

Fairfield Medical Center, Lancaster

Ohio State University Comprehensive Cancer Center, Columbus

Mount Carmel East Hospital, Columbus

Columbus Oncology and Hematology Associates Inc, Columbus

Riverside Methodist Hospital, Columbus

Grant Medical Center, Columbus

The Mark H Zangmeister Center, Columbus

Mount Carmel Health Center West, Columbus

Doctors Hospital, Columbus

OhioHealth Marion General Hospital, Marion

Genesis Healthcare System Cancer Care Center, Zanesville

OhioHealth Mansfield Hospital, Mansfield

Good Samaritan Hospital - Cincinnati, Cincinnati

Bethesda North Hospital, Cincinnati

TriHealth Cancer Institute-Westside, Cincinnati

TriHealth Cancer Institute-Anderson, Cincinnati

Adena Regional Medical Center, Chillicothe

Southern Ohio Medical Center, Portsmouth

Strecker Cancer Center-Belpre, Belpre

Marietta Memorial Hospital, Marietta

Parkview Hospital Randallia, Fort Wayne

Mercy Medical Center-West Lakes, West Des Moines

Medical Oncology and Hematology Associates-Laurel, Des Moines

Mercy Medical Center - Des Moines, Des Moines

Medical Oncology and Hematology Associates-West Des Moines, Clive

Mercy Cancer Center-West Lakes, Clive

Greater Regional Medical Center, Creston

Alegent Health Mercy Hospital, Council Bluffs

University of Iowa/Holden Comprehensive Cancer Center, Iowa City

Cancer Center of Western Wisconsin, New Richmond

Lakeview Hospital, Stillwater

Fairview Lakes Medical Center, Wyoming

Regions Hospital, Saint Paul

United Hospital, Saint Paul

Minnesota Oncology Hematology PA-Maplewood, Maplewood

Saint John's Hospital - Healtheast, Maplewood

Minnesota Oncology Hematology PA-Woodbury, Woodbury

Fairview Ridges Hospital, Burnsville

Fairview Clinics and Surgery Center Maple Grove, Maple Grove

Saint Francis Regional Medical Center, Shakopee

Ridgeview Medical Center, Waconia

Abbott-Northwestern Hospital, Minneapolis

Hennepin County Medical Center, Minneapolis

Park Nicollet Clinic - Saint Louis Park, Saint Louis Park

North Memorial Medical Health Center, Robbinsdale

Unity Hospital, Fridley

Mercy Hospital, Coon Rapids

Fairview Southdale Hospital, Edina

Health Partners Inc, Minneapolis

New Ulm Medical Center, New Ulm

Rice Memorial Hospital, Willmar

Billings Clinic Cancer Center, Billings

Benefis Healthcare- Sletten Cancer Institute, Great Falls

Great Falls Clinic, Great Falls

Saint Peter's Community Hospital, Helena

Community Hospital of Anaconda, Anaconda

Bozeman Deaconess Hospital, Bozeman

Community Medical Hospital, Missoula

Kalispell Regional Medical Center, Kalispell

Northwestern Medicine Lake Forest Hospital, Lake Forest

UC Comprehensive Cancer Center at Silver Cross, New Lenox

University of Chicago Medicine-Orland Park, Orland Park

Northwestern University, Chicago

University of Chicago Comprehensive Cancer Center, Chicago

Good Samaritan Regional Health Center, Mount Vernon

Saint Louis Cancer and Breast Institute-Ballwin, Ballwin

Mercy Hospital Washington, Washington

Saint Louis Cancer and Breast Institute-South City, St Louis

Mercy Hospital Saint Louis, St Louis

Heartland Regional Medical Center, Saint Joseph

Freeman Health System, Joplin

Mercy Hospital Joplin, Joplin

Delbert Day Cancer Institute at PCRMC, Rolla

Mercy Clinic-Rolla-Cancer and Hematology, Rolla

Central Care Cancer Center - Bolivar, Bolivar

Cox Cancer Center Branson, Branson

Mercy Hospital Springfield, Springfield

CoxHealth South Hospital, Springfield

University of Kansas Cancer Center, Kansas City

University of Kansas Hospital-Westwood Cancer Center, Westwood

Midlands Community Hospital, Papillion

Alegent Health Immanuel Medical Center, Omaha

Hematology and Oncology Consultants PC, Omaha

Alegent Health Bergan Mercy Medical Center, Omaha

Alegent Health Lakeside Hospital, Omaha

Creighton University Medical Center, Omaha

Saint Elizabeth Regional Medical Center, Lincoln

CHI Health Saint Francis, Grand Island

Heartland Hematology and Oncology, Kearney

CHI Health Good Samaritan, Kearney

Louisiana State University Health Science Center, New Orleans

Ochsner Medical Center Jefferson, New Orleans

Willis-Knighton Medical and Cancer Center, Shreveport

CHI Saint Vincent Cancer Center Hot Springs, Hot Springs

University of Oklahoma Health Sciences Center, Oklahoma City

Mercy Hospital Oklahoma City, Oklahoma City

Oklahoma Cancer Specialists and Research Institute-Tulsa, Tulsa

Saint Joseph Regional Cancer Center, Bryan

Rocky Mountain Cancer Centers-Aurora, Aurora

SCL Health Lutheran Medical Center, Wheat Ridge

University of Colorado Hospital, Aurora

Mountain Blue Cancer Care Center - Swedish, Englewood

Swedish Medical Center, Englewood

Rocky Mountain Cancer Centers-Littleton, Littleton

Littleton Adventist Hospital, Littleton

Rocky Mountain Cancer Centers-Sky Ridge, Lone Tree

Parker Adventist Hospital, Parker

Rocky Mountain Cancer Centers-Parker, Parker

Denver Health Medical Center, Denver

National Jewish Health-Main Campus, Denver

The Women's Imaging Center, Denver

Porter Adventist Hospital, Denver

Colorado Blood Cancer Institute, Denver

Presbyterian - Saint Lukes Medical Center - Health One, Denver

Rocky Mountain Cancer Centers-Midtown, Denver

SCL Health Saint Joseph Hospital, Denver

Rocky Mountain Cancer Centers-Rose, Denver

Rose Medical Center, Denver

Rocky Mountain Cancer Centers-Lakewood, Lakewood

Saint Anthony Hospital, Lakewood

National Jewish Health-Northern Hematology Oncology, Thornton

Rocky Mountain Cancer Centers-Thornton, Thornton

Boulder Community Hospital, Boulder

Rocky Mountain Cancer Centers-Boulder, Boulder

Mountain Blue Cancer Care Center, Golden

National Jewish Health-Western Hematology Oncology, Golden

Longmont United Hospital, Longmont

Rocky Mountain Cancer Centers-Longmont, Longmont

McKee Medical Center, Loveland

North Colorado Medical Center, Greeley

Penrose-Saint Francis Healthcare, Colorado Springs

Rocky Mountain Cancer Centers-Penrose, Colorado Springs

Saint Mary Corwin Medical Center, Pueblo

Rocky Mountain Cancer Centers - Pueblo, Pueblo

Mercy Medical Center, Durango

Southwest Oncology PC, Durango

Cheyenne Regional Medical Center-West, Cheyenne

Billings Clinic-Cody, Cody

Welch Cancer Center, Sheridan

Kootenai Medical Center, Coeur d'Alene

Kootenai Cancer Center, Post Falls

Kootenai Cancer Clinic, Sandpoint

University of New Mexico Cancer Center, Albuquerque

Women's Cancer Center of Nevada, Las Vegas

John Muir Medical Center-Concord Campus, Concord

John Muir Medical Center-Walnut Creek, Walnut Creek

Saint Francis Hospital, Federal Way

Saint Elizabeth Hospital, Enumclaw

Fred Hutchinson Cancer Research Center, Seattle

Seattle Cancer Care Alliance, Seattle

Highline Medical Center-Main Campus, Burien

University of Washington Medical Center, Seattle

Harrison HealthPartners Hematology and Oncology-Bremerton, Bremerton

Harrison Medical Center, Bremerton

Harrison HealthPartners Hematology and Oncology-Poulsbo, Poulsbo

Franciscan Research Center-Northwest Medical Plaza, Tacoma

Northwest Medical Specialties PLLC, Tacoma

Saint Clare Hospital, Lakewood

Dartmouth Hitchcock Medical Center, Lebanon

Women and Infants Hospital, Providence