Clinical Trials Corner

Dear Readers,

The Clinical Trials Corner of the Bladder Cancer journal is a section devoted towards highlighting ongoing trials or recently completed trials in urothelial cancer. Our hope is to encourage accrual for ongoing trials and to educate readers on the results of completed trials. If you feel that you would like to draw attention to a specific trial, please feel free to email us at: pkagarwal@uchicago.edu and/or cns9006@med.cornell.edu.

Sincerely,

Piyush K. Agarwal Cora N. Sternberg
Piyush K. Agarwal, MD Cora N. Sternberg, MD, FACP
Associate Editor, Bladder Cancer Associate Editor, Bladder Cancer
Director, Bladder Cancer Program Clinical Director, Englander Institute of Precision Medicine
University of Chicago Medicine Weill Cornell Medicine
Chicago, IL, USA New York, NY, USA

A Study of Atezolizumab Compared With Chemotherapy in Patients With Locally Advanced or Metastatic Urothelial Bladder Cancer [IMvigor211]

Status: 
Closed
Sponsor: 
Roche/Genentech
Participating centers: 
United States (several centers), Australia, Austria, Belgium, Canada, Czech Republic, Denmark, Finland, France, Germany, Greece, Hungary, Italy, Japan, Korea, Netherlands, Norway, Poland, Portugal, Romania, Russian Federation, Serbia, Slovenia, Spain, Sweden, Switzerland, Taiwan, Turkey, United Kingdom
Accrual: 
expected 767
Study Design: 
Phase III, randomized trial comparing atezolizumab (anti-PD-L1 antibody) with chemotherapy in locally advanced or metastatic urothelial bladder cancer after failure with platinum-containing chemotherapy
Rationale: 
Powles et al. reported a 26% overall response rate with atezolizumab in patients with metastatic urothelial cancer in a Phase I study. Recently, more data in heavily pretreated patients from the IMvigor210 study have been presented by Rosenberg et al. at the European Cancer Congress (Vienna, September 2015) meeting and at the Genitourinary Cancers Symposium (GUCS) in January 2016. IMvigor 210 enrolled an all-comer population independent of PD-L1 immunohistochemistry (IC) status (n=311). There was a 27% response rate in patients with IC2/3 status, 10% with IC1 and 9% with IC0. Therefore, the IMvigor211 trial is trying to establish the merits of using atezolizumab in the second-line setting after failing platinum-based chemotherapy.
Comments: 
It will be interesting to see how the responses and more importantly overall survival of second-line chemotherapy will compare with second-line immunotherapy, that has been shown to improve OS in other tumor types.

A Study of Nivolumab in Participants With Metastatic or Unresectable Bladder Cancer

Status: 
Closed
Sponsor: 
Bristol-Myers Squibb
Participating centers: 
United States (several centers), Australia, Belgium, Czech Republic, Finland, Germany, Italy, Japan, Poland, Spain, Sweden
Accrual: 
242
Study Design: 
Phase II, single arm trial of nivolumab in patients with metastatic or unresectable urothelial cancer who have progressed or recurred after platinum-based chemotherapy
Rationale: 
Nivolumab is a monoclonal antibody against PD-1 and is being evaluated in a Phase I/II in combination with ipilimumab in advanced or metastatic solid tumors including patients with urothelial cancer. It has demonstrated activity in melanoma, lung cancer, and renal cancer. This trial aims to look at the efficacy of nivolumab as a second line therapy in platinum-recurrent or -resistant urothelial tumors.
Comments: 
Patients were stratified in this trial based on their PD-L1 expression. Nivolumab has been approved by the FDA for patients with lung cancer and more recently for second line renal cell cancer after a comparison with everolimus revealed a clear improvement in overall survival (Checkmate 025 Phase III trial; Motzer RJ, et al. N Engl J Med. 2015: 373; 1803-13).

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