Concurrent Chemoradiotherapy with or Without Atezolizumab in Localized Muscle Invasive Bladder Cancer

What is the Purpose of this Study?

The purpose of this study is to compare the effects of chemotherapy and radiation therapy with or without the use of an immunotherapy drug called atezolizumab, which is used to treat bladder cancer. Participants will receive combined chemotherapy and radiation therapy (which is called “chemoradiotherapy”) either with or without the study drug. The chemoradiotherapy is standard-of-care treatment and will be administered for up to 7 weeks. If participants are assigned to the group receiving atezolizumab, they will take the drug for up to 6 months in addition to the chemoradiotherapy. The addition of atezolizumab to the usual treatment could help patients live longer but may cause side effects. The combination of chemotherapy, radiation therapy and atezolizumab is considered experimental.


Eligibility

  • STEP 1 REGISTRATION: If this will be the first patient from a registering site to receive a given RT modality (3DCRT vs. IMRT), the site must first submit pre-RT planning documents within 3 days of Step 1 registration and receive approval from Imaging and Radiation Oncology Core (IROC) before randomizing the patient to Step 2. If this will not be the first patient to receive a specific RT modality, the patient should be immediately randomized to Step 2 on the same day.
  • STEP 2 RANDOMIZATION: If patient required review of pre-RT planning, randomization must occur within 14 days of initial registration.
  • Patients must have histologically proven, T2-T4a N0M0 urothelial carcinoma of the bladder within 120 days prior to randomization and no intervening treatment between the histologic proof and randomization. Patients with mixed urothelial carcinoma will be eligible for the trial, but the presence of small cell carcinoma will make a patient ineligible. Patients with lymph nodes >= 1.0 cm in shortest cross-sectional diameter on imaging (computed tomography [CT]/magnetic resonance imaging [MRI] of abdomen and pelvis) must have a biopsy of the enlarged lymph node showing no tumor involvement within 70 days prior to randomization. These patients may be suitable for neoadjuvant chemotherapy and radical cystectomy and are eligible for this trial if they seek out a bladder sparing treatment strategy, however patients who have received prior systemic chemotherapy for bladder cancer are not eligible for the trial.
  • Patients must undergo a transurethral resection of bladder tumor (TURBT) within 70 days prior to randomization. In a situation where a patient is referred from outside to the enrolling institution, patient must have a repeat office cystoscopy by the urologist who will be following the patient on the clinical trial to assess the adequacy of the prior TURBT. This cystoscopy can be performed in urologist office without general anesthesia. Patient may then undergo repeat TURBT if deemed necessary as standard of care by the treating urologist. Patients may have either completely or partially resected tumors as long as the treating urologist attempted maximal resection. Patient must not have T4b disease
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Where can I participate?

  • Cedars-Sinai Cancer at Beverly Hills (THO)
  • Cedars-Sinai Cancer at SOCC


More about this Clinical Trial

What is the full name of this clinical trial?

S1806: Phase III Randomized Trial of Concurrent Chemoradiotherapy with or Without Atezolizumab in Localized Muscle Invasive Bladder Cancer

Study Details
Disease Type/Condition

Bladder cancer, Urology

Principal Investigator

Ahdoot, Michael

Co-Investigators

Charles Rosser, David Hoffman, Edwin Posadas, Howard Sandler, Hyung Kim, Jeremy Lorber, Jun Gong, Kevin Scher, Leslie Ballas, Timothy Daskivich, Zachary Zumsteg

Age Group

Adult

Phase

III

IRB Number

STUDY00000384

ClinicalTrials.gov ID

NCT03775265

Key Eligibility
ClinicalTrials.gov

How do I learn more about this study?
Email
clinicaltrials@cshs.org
Study Details
Disease Type/Condition

Bladder cancer, Urology

Principal Investigator

Ahdoot, Michael

Age Group

Adult

Phase

III

IRB Number

S1806

ClinicalTrials.gov ID

NCT03775265

Key Eligibility
ClinicalTrials.gov

Contact
Email
clinicaltrials@cshs.org