Testing the Addition of an Anti-cancer Drug, Pembrolizumab, to the Usual Intravesical Chemotherapy Treatment (Gemcitabine) for the Treatment of BCG-Unresponsive Non-muscle Invasive Bladder Cancer

Memorial Sloan Kettering Cancer Center, New York

NYP/Weill Cornell Medical Center, New York

Memorial Sloan Kettering Westchester, Harrison

The New York Hospital Medical Center of Queens, Flushing

Memorial Sloan Kettering Nassau, Uniondale

Memorial Sloan Kettering Commack, Commack

Stony Brook University Medical Center, Stony Brook

Arnot Ogden Medical Center/Falck Cancer Center, Elmira

Lehigh Valley Hospital - Muhlenberg, Bethlehem

Lehigh Valley Hospital-Cedar Crest, Allentown

Lehigh Valley Hospital-Hazleton, Hazleton

Pocono Medical Center, East Stroudsburg

MedStar Georgetown University Hospital, Washington D.C.

MedStar Washington Hospital Center, Washington D.C.

UM Baltimore Washington Medical Center/Tate Cancer Center, Glen Burnie

University of North Carolina-Hillsborough Campus, Hillsborough

UNC Lineberger Comprehensive Cancer Center, Chapel Hill

North Grove Medical Park, Spartanburg

Spartanburg Medical Center, Spartanburg

Spartanburg Medical Center - Mary Black Campus, Spartanburg

Gibbs Cancer Center-Gaffney, Gaffney

SMC Center for Hematology Oncology Union, Union

Ralph H Johnson VA Medical Center, Charleston

Gibbs Cancer Center-Pelham, Greer

University of Florida Health Science Center - Gainesville, Gainesville

Holy Cross Hospital, Fort Lauderdale

University of Alabama at Birmingham Cancer Center, Birmingham

University of Kentucky/Markey Cancer Center, Lexington

Mercy Health - Perrysburg Hospital, Perrysburg

Mercy Health - Saint Anne Hospital, Toledo

Toledo Clinic Cancer Centers-Toledo, Toledo

Saint Joseph Warren Hospital, Warren

Saint Elizabeth Youngstown Hospital, Youngstown

Saint Elizabeth Boardman Hospital, Boardman

Dayton Physicians LLC-Atrium, Franklin

Oncology Hematology Care Inc-Kenwood, Cincinnati

Dayton Physicians LLC-Wayne, Greenville

Wayne Hospital, Greenville

Dayton Physicians LLC - Troy, Troy

Upper Valley Medical Center, Troy

Miami Valley Hospital, Dayton

Greater Dayton Cancer Center, Kettering

Dayton Physician LLC - Englewood, Dayton

Miami Valley Hospital North, Dayton

First Dayton Cancer Care, Kettering

Kettering Medical Center, Kettering

Indu and Raj Soin Medical Center, Beavercreek

Dayton Physicians LLC-Miami Valley South, Centerville

Miami Valley Hospital South, Centerville

Springfield Regional Cancer Center, Springfield

Springfield Regional Medical Center, Springfield

Armes Family Cancer Center, Findlay

Blanchard Valley Hospital, Findlay

Orion Cancer Care, Findlay

Memorial Hospital of South Bend, South Bend

Reid Health, Richmond

Henry Ford Saint John Hospital - Macomb Medical, Macomb

Henry Ford Warren Hospital - Breast Macomb, Macomb

Henry Ford River District Hospital, East China Township

Advanced Breast Care Center PLLC, Warren

Henry Ford Health Warren Hospital, Warren

Henry Ford Madison Heights Hospital - Breast, Warren

Henry Ford Warren Hospital - GLCMS, Warren

Macomb Hematology Oncology PC, Warren

Trinity Health Saint Joseph Mercy Hospital Ann Arbor, Ann Arbor

Huron Gastroenterology PC, Ypsilanti

Trinity Health IHA Medical Group Hematology Oncology - Brighton, Brighton

Trinity Health Medical Center - Brighton, Brighton

Chelsea Hospital, Chelsea

Trinity Health IHA Medical Group Hematology Oncology - Chelsea Hospital, Chelsea

Hope Cancer Clinic, Livonia

Trinity Health Saint Mary Mercy Livonia Hospital, Livonia

Toledo Clinic Cancer Centers-Monroe, Monroe

Trinity Health IHA Medical Group Hematology Oncology - Canton, Canton

Trinity Health Medical Center - Canton, Canton

Trinity Health IHA Medical Group Hematology Oncology Ann Arbor Campus, Ypsilanti

Henry Ford Health Saint John Hospital, Detroit

Henry Ford Saint John Hospital - Academic, Grosse Pointe Woods

Henry Ford Saint John Hospital - Breast, Grosse Pointe Woods

Henry Ford Saint John Hospital - Van Elslander, Grosse Pointe Woods

Henry Ford Rochester Hospital, Rochester Hills

Bhadresh Nayak MD PC-Sterling Heights, Sterling Heights

Hope Cancer Center, Pontiac

Michigan Healthcare Professionals Pontiac, Pontiac

Newland Medical Associates-Pontiac, Pontiac

Trinity Health Saint Joseph Mercy Oakland Hospital, Pontiac

Hematology Oncology Consultants-Clarkston, Clarkston

Newland Medical Associates-Clarkston, Clarkston

Saint Mary's Oncology/Hematology Associates of Marlette, Marlette

Cancer Hematology Centers - Flint, Flint

Genesee Hematology Oncology PC, Flint

Genesys Hurley Cancer Institute, Flint

Hurley Medical Center, Flint

MyMichigan Medical Center Saginaw, Saginaw

Oncology Hematology Associates of Saginaw Valley PC, Saginaw

Saint Mary's Oncology/Hematology Associates of West Branch, West Branch

Caro Cancer Center, Caro

MyMichigan Medical Center Tawas, Tawas City

University of Michigan Health - Sparrow Lansing, Lansing

Bronson Methodist Hospital, Kalamazoo

West Michigan Cancer Center, Kalamazoo

Beacon Kalamazoo Cancer Center, Kalamazoo

Bronson Battle Creek, Battle Creek

Beacon Kalamazoo, Kalamazoo

Corewell Health Lakeland Hospitals - Marie Yeager Cancer Center, Saint Joseph

Corewell Health Lakeland Hospitals - Saint Joseph Hospital, Saint Joseph

Corewell Health Lakeland Hospitals - Niles Hospital, Niles

Hickman Cancer Center, Adrian

Trinity Health Muskegon Hospital, Muskegon

Cancer and Hematology Centers of Western Michigan - Norton Shores, Norton Shores

Corewell Health Grand Rapids Hospitals - Butterworth Hospital, Grand Rapids

Corewell Health Grand Rapids Hospitals - Helen DeVos Children's Hospital, Grand Rapids

Trinity Health Grand Rapids Hospital, Grand Rapids

University of Michigan Health - West, Wyoming

Corewell Health Reed City Hospital, Reed City

Munson Medical Center, Traverse City

ProHealth Oconomowoc Memorial Hospital, Oconomowoc

ProHealth D N Greenwald Center, Mukwonago

ProHealth Waukesha Memorial Hospital, Waukesha

UW Cancer Center at ProHealth Care, Waukesha

Medical College of Wisconsin, Milwaukee

Cancer Center of Western Wisconsin, New Richmond

Marshfield Medical Center-Marshfield, Marshfield

Marshfield Medical Center - Weston, Weston

Marshfield Medical Center-River Region at Stevens Point, Stevens Point

Marshfield Medical Center - Minocqua, Minocqua

Marshfield Medical Center-EC Cancer Center, Eau Claire

Marshfield Medical Center-Rice Lake, Rice Lake

Cambridge Medical Center, Cambridge

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

Minnesota Oncology - Burnsville, Burnsville

Monticello Cancer Center, Monticello

Fairview Clinics and Surgery Center Maple Grove, Maple Grove

Fairview Northland Medical Center, Princeton

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

Saint Vincent Healthcare, Billings

Saint Vincent Frontier Cancer Center, Billings

Benefis Sletten Cancer Institute, Great Falls

Great Falls Clinic, Great Falls

Saint James Community Hospital and Cancer Treatment Center, Butte

Community Hospital of Anaconda, Anaconda

Bozeman Health Deaconess Hospital, Bozeman

Saint Patrick Hospital - Community Hospital, Missoula

Community Medical Center, Missoula

Logan Health Medical Center, Kalispell

Loyola University Medical Center, Maywood

Marjorie Weinberg Cancer Center at Loyola-Gottlieb, Melrose Park

Rush MD Anderson Cancer Center, Chicago

Illinois CancerCare-Dixon, Dixon

Illinois CancerCare-Ottawa Clinic, Ottawa

Illinois CancerCare-Peru, Peru

Valley Radiation Oncology, Peru

Illinois CancerCare-Princeton, Princeton

Illinois CancerCare-Galesburg, Galesburg

Western Illinois Cancer Treatment Center, Galesburg

Illinois CancerCare-Kewanee Clinic, Kewanee

Illinois CancerCare-Macomb, Macomb

Illinois CancerCare-Canton, Canton

Illinois CancerCare-Eureka, Eureka

Illinois CancerCare-Pekin, Pekin

Illinois CancerCare - Washington, Washington

Illinois CancerCare-Peoria, Peoria

Methodist Medical Center of Illinois, Peoria

Illinois CancerCare-Bloomington, Bloomington

OSF Saint Anthony's Health Center, Alton

Southwest Illinois Health Services LLP, Swansea

Cancer Care Center of O'Fallon, O'Fallon

Illinois CancerCare-Carthage, Carthage

Crossroads Cancer Center, Effingham

Cancer Care Specialists of Illinois - Decatur, Decatur

Decatur Memorial Hospital, Decatur

Southern Illinois University School of Medicine, Springfield

Springfield Clinic, Springfield

Springfield Memorial Hospital, Springfield

Centralia Oncology Clinic, Centralia

SSM Health Good Samaritan, Mount Vernon

Memorial Hospital of Carbondale, Carbondale

SIH Cancer Institute, Carterville

Mercy Oncology and Hematology - Clayton-Clarkson, Ballwin

Saint Luke's Hospital, Chesterfield

Missouri Baptist Sullivan Hospital, Sullivan

Mercy Hospital Washington, Washington

Mercy Infusion Center - Chippewa, St Louis

BJC Outpatient Center at Sunset Hills, Sunset Hills

Mercy Hospital South, St Louis

Missouri Baptist Medical Center, St Louis

Mercy Hospital Saint Louis, St Louis

Parkland Health Center - Farmington, Farmington

Sainte Genevieve County Memorial Hospital, Sainte Genevieve

Mercy Cancer Center - Cape Girardeau, Cape Girardeau

Saint Francis Medical Center, Cape Girardeau

Heartland Regional Medical Center, Saint Joseph

Freeman Health System, Joplin

Mercy Hospital Joplin, Joplin

MU Health Care Goldschmidt Cancer Center, Jefferson City

MU Health - University Hospital/Ellis Fischel Cancer Center, Columbia

Mercy Clinic-Rolla-Cancer and Hematology, Rolla

Phelps Health Delbert Day Cancer Institute, 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

University of Kansas Hospital-Indian Creek Campus, Overland Park

Central Care Cancer Center - Great Bend, Great Bend

Central Care Cancer Center - Garden City, Garden City

Mary Bird Perkins Cancer Center - Metairie, Metairie

East Jefferson General Hospital, Metairie

LSU Healthcare Network / Metairie Multi-Specialty Clinic, Metairie

Louisiana State University Health Science Center, New Orleans

University Medical Center New Orleans, New Orleans

Touro Infirmary, New Orleans

Louisiana Hematology Oncology Associates LLC, Baton Rouge

Mary Bird Perkins Cancer Center, Baton Rouge

Mercy Hospital Fort Smith, Fort Smith

University of Oklahoma Health Sciences Center, Oklahoma City

Mercy Hospital Oklahoma City, Oklahoma City

Baylor College of Medicine/Dan L Duncan Comprehensive Cancer Center, Houston

UTMB Cancer Center at Victory Lakes, League City

Audie L Murphy VA Hospital, San Antonio

University of Texas Health Science Center at San Antonio, San Antonio

Rocky Mountain Cancer Centers-Aurora, Aurora

The Medical Center of Aurora, Aurora

Good Samaritan Hospital - Cancer Centers of Colorado, Lafayette

Rocky Mountain Cancer Centers - Centennial, Centennial

Mountain Blue Cancer Care Center - Swedish, Englewood

Rocky Mountain Cancer Centers - Swedish, Englewood

Swedish Medical Center, Englewood

The Melanoma and Skin Cancer Institute, Englewood

Rocky Mountain Cancer Centers-Littleton, Littleton

Rocky Mountain Cancer Centers-Sky Ridge, Lone Tree

Sky Ridge Medical Center, Lone Tree

Cancer Center of Colorado at Sloan's Lake, Denver

National Jewish Health-Main Campus, Denver

The Women's Imaging Center, Denver

Colorado Blood Cancer Institute, Denver

Presbyterian - Saint Lukes Medical Center - Health One, Denver

Rocky Mountain Cancer Centers-Midtown, Denver

Saint Joseph Hospital - Cancer Centers of Colorado, Denver

Rocky Mountain Cancer Centers-Rose, Denver

Rose Medical Center, Denver

Western Surgical Care, Denver

Rocky Mountain Cancer Centers-Lakewood, Lakewood

National Jewish Health-Northern Hematology Oncology, Thornton

Rocky Mountain Cancer Centers-Thornton, Thornton

Boulder Community Foothills Hospital, Boulder

Rocky Mountain Cancer Centers-Boulder, Boulder

National Jewish Health-Western Hematology Oncology, Golden

Intermountain Health Lutheran Hospital, Wheat Ridge

Banner McKee Medical Center, Loveland

Banner North Colorado Medical Center, Greeley

Saint Mary's Hospital and Regional Medical Center, Grand Junction

Cheyenne Regional Medical Center-West, Cheyenne

Billings Clinic-Cody, Cody

Welch Cancer Center, Sheridan

Saint Luke's Cancer Institute - Twin Falls, Twin Falls

Saint Alphonsus Cancer Care Center-Caldwell, Caldwell

Walter Knox Memorial Hospital, Emmett

Saint Luke's Cancer Institute - Fruitland, Fruitland

Idaho Urologic Institute-Meridian, Meridian

Saint Luke's Cancer Institute - Meridian, Meridian

Saint Alphonsus Cancer Care Center-Nampa, Nampa

Saint Luke's Cancer Institute - Nampa, Nampa

Saint Alphonsus Cancer Care Center-Boise, Boise

Saint Luke's Cancer Institute - Boise, Boise

Kootenai Health - Coeur d'Alene, Coeur d'Alene

Kootenai Clinic Cancer Services - Post Falls, Post Falls

Kootenai Clinic Cancer Services - Sandpoint, Sandpoint

American Fork Hospital / Huntsman Intermountain Cancer Center, American Fork

Riverton Hospital, Riverton

Utah Cancer Specialists-Salt Lake City, Salt Lake City

Intermountain Medical Center, Murray

LDS Hospital, Salt Lake City

Logan Regional Hospital, Logan

McKay-Dee Hospital Center, Ogden

Utah Valley Regional Medical Center, Provo

Sandra L Maxwell Cancer Center, Cedar City

Saint George Regional Medical Center, St. George

Cancer Center at Saint Joseph's, Phoenix

Mayo Clinic Hospital in Arizona, Phoenix

Mayo Clinic in Arizona, Scottsdale

Cedars Sinai Medical Center, Los Angeles

Providence Saint Joseph Medical Center/Disney Family Cancer Center, Burbank

University of California Davis Comprehensive Cancer Center, Sacramento

Hawaii Cancer Care - Westridge, ‘Aiea

Pali Momi Medical Center, ‘Aiea

Queen's Cancer Center - Pearlridge, ‘Aiea

The Cancer Center of Hawaii-Pali Momi, ‘Aiea

The Queen's Medical Center - West Oahu, ‘Ewa Beach

Straub Medical Center - Kahului Clinic, Kahului

Castle Medical Center, Kailua

Wilcox Memorial Hospital and Kauai Medical Clinic, Lihue

Hawaii Cancer Care Inc - Waterfront Plaza, Honolulu

Island Urology, Honolulu

Queen's Cancer Cenrer - POB I, Honolulu

Queen's Medical Center, Honolulu

Straub Clinic and Hospital, Honolulu

University of Hawaii Cancer Center, Honolulu

Hawaii Cancer Care Inc-Liliha, Honolulu

Hawaii Diagnostic Radiology Services LLC, Honolulu

Kuakini Medical Center, Honolulu

Queen's Cancer Center - Kuakini, Honolulu

The Cancer Center of Hawaii-Liliha, Honolulu

Kapiolani Medical Center for Women and Children, Honolulu

FHP Health Center-Guam, Tamuning

Clackamas Radiation Oncology Center, Clackamas

Providence Cancer Institute Clackamas Clinic, Clackamas

Providence Newberg Medical Center, Newberg

Providence Portland Medical Center, Portland

Providence Saint Vincent Medical Center, Portland

Bay Area Hospital, Coos Bay

Saint Charles Health System, Bend

Saint Charles Health System-Redmond, Redmond

Saint Alphonsus Cancer Care Center-Baker City, Baker City

Saint Alphonsus Cancer Care Center-Ontario, Ontario

MultiCare Auburn Medical Center, Auburn

Swedish Cancer Institute-Edmonds, Edmonds

Swedish Cancer Institute-Issaquah, Issaquah

Pacific Gynecology Specialists, Seattle

Swedish Medical Center-Ballard Campus, Seattle

Swedish Medical Center-First Hill, Seattle

Providence Regional Cancer Partnership, Everett

PeaceHealth Saint Joseph Medical Center, Bellingham

PeaceHealth United General Medical Center, Sedro-Woolley

MultiCare Gig Harbor Medical Park, Gig Harbor

Jefferson Healthcare, Port Townsend

MultiCare Good Samaritan Hospital, Puyallup

MultiCare Tacoma General Hospital, Tacoma

Providence Regional Cancer System-Lacey, Lacey

Anchorage Associates in Radiation Medicine, Anchorage

Providence Regional Cancer System-Aberdeen, Aberdeen

Providence Regional Cancer System-Centralia, Centralia

Providence Regional Cancer System-Shelton, Shelton

Providence Regional Cancer System-Yelm, Yelm

PeaceHealth Saint John Medical Center, Longview

PeaceHealth Southwest Medical Center, Vancouver

MultiCare Deaconess Cancer and Blood Specialty Center - Downtown, Spokane

MultiCare Deaconess Cancer and Blood Specialty Center - Valley, Spokane Valley

MultiCare Deaconess Cancer and Blood Specialty Center - North, Spokane

Kadlec Clinic Hematology and Oncology, Kennewick

Providence Saint Mary Regional Cancer Center, Walla Walla

Anchorage Radiation Therapy Center, Anchorage

Alaska Breast Care and Surgery LLC, Anchorage

Alaska Oncology and Hematology LLC, Anchorage

Alaska Women's Cancer Care, Anchorage

Anchorage Oncology Centre, Anchorage

Katmai Oncology Group, Anchorage

Providence Alaska Medical Center, Anchorage

Fairbanks Memorial Hospital, Fairbanks

Lowell General Hospital, Lowell

Mercy Medical Center, Springfield

Dartmouth Hitchcock Medical Center/Dartmouth Cancer Center, Lebanon

Memorial Sloan Kettering Basking Ridge, Basking Ridge

Hackensack University Medical Center, Hackensack

Memorial Sloan Kettering Monmouth, Middletown

Memorial Sloan Kettering Bergen, Montvale

The Valley Hospital - Luckow Pavilion, Paramus

Neurosurgeons of New Jersey-Ridgewood, Ridgewood

Valley Health System Ridgewood Campus, Ridgewood

Valley Health System-Hematology/Oncology, Westwood

Atrium Medical Center-Middletown Regional Hospital, Franklin

University of Texas Medical Branch, Galveston

Swedish Medical Center-Cherry Hill, Seattle

Cancer Center-Metro Medical Center Bayamon, Bayamón

Puerto Rico Hematology Oncology Group, Bayamón

HIMA San Pablo Oncologic Hospital, Caguas

Doctors Cancer Center, Manatí

Instituto Oncologia Moderna Ponce, Ponce

San Juan Community Oncology Group, San Juan

Centro Comprensivo de Cancer de UPR, San Juan

San Juan City Hospital, San Juan