Functional Imaging of T-Cell Activation With [18F]F-AraG in Urothelial Carcinoma Patients Receiving Neoadjuvant Therapy or Patients With Cancer Receiving Standard of Care Anti-PD-1/L1
Bladder Cancer
About this trial
This is an interventional diagnostic trial for Bladder Cancer
Eligibility Criteria
Inclusion Criteria:
- Histologically or cytologically documented cancer to which anti-PD1 or anti-PDL1 are approved therapies
- Eligible for with plan to undergo neoadjuvant treatment with atezolizumab followed by surgery as part of a companion study (NCT02451423), or planned to undergo treatment with anti-PD-1 or anti-PD-L1 per standard of care
- Must have measurable disease by Response Evaluation Criteria in Solid Tumors (RECIST) version (v)1.1 regardless of disease stage (e.g. localized, locally advanced, or metastatic)
- In female patients, negative pregnancy test with no plans to become pregnant during the duration of the study
- Able to provide informed consent and follow the study guidelines
- Archival tumor tissue from biopsy or resection will be required for all patients; archival tissue should be of good quality based on total and viable tumor contents; fine needle aspiration, brushing, and cytologic cell pellets are not acceptable
Exclusion Criteria:
History of prior treatment with immune checkpoint antibodies (e.g. anti-PD1, anti-PDL1, anti-CTLA4 antibody) or co-stimulatory agonist antibodies (e.g. anti-41BB, anti-OX40)
* Prior intravesical treatment with Bacillus Calmette-Guerin (BCG) is allowed; however, the last dose must be at least 6 weeks from time of enrollment and patients must have documented progressive disease at least 6 weeks from completion of last BCG
- Diagnosis of immunodeficiency including history of human immunodeficiency virus (HIV)
Receiving systemic steroid therapy or any form of immunosuppressive therapy within 7 days prior to first injection of [18F]F-AraG
* Topical and inhaled corticosteroids are allowed
- Prior allogeneic stem cell or solid organ transplant
- Known psychiatric or substance abuse disorders that would interfere with cooperation with the requirements of the study
- Biopsy or resection of the primary tumor within 14 days the first injection of [18F]F-AraG
- Contraindication to magnetic resonance (MRI) imaging, as determined through review of the University of California, San Francisco (UCSF) MRI screening form by study investigator
- Evidence of active infection within 14 days of study enrollment
- Female patients who are pregnant or breastfeeding
- Inability to receive furosemide (Lasix) in the opinion of the treating investigator
- Patients that plan to receive off-label use of anti-PD1 or anti-PDL1
Sites / Locations
- University of California, San Francisco
Arms of the Study
Arm 1
Arm 2
Experimental
Experimental
Cohort 1: Neoadjuvant
Cohort 2: Standard of Care (SOC)
Patients with localized bladder cancer who are eligible for the UCSF phase 2 clinical trial of neoadjuvant atezolizumab before definitive surgery (NCT02451423) (Cohort 1). For the neoadjuvant cohort, study participants will undergo whole body PET/MR imaging with [18F]F-AraG within 7 days of initiating atezolizumab and within 7 days before surgery. Approximately 12 patients will be enrolled.
Patients with any cancer type who are planned to initiate standard of care (SOC) anti-PD-1 or anti-PD-L1 treatment (Cohort 2). For the SOC cohort, study participants will undergo whole body PET/MR imaging with [18F]F-AraG within 7 days of initiating Cycle 1 anti-PD-1 or anti-PD-L1, and between Cycle 1 Day 15 (C1D15) and Cycle 2 Day 7 (C2D7) anti-PD-1 or anti-PD-L1. Approximately 19 patients will be enrolled.