A Clinical Study of Intismeran Autogene (V940) and BCG in People With Bladder Cancer (V940-011/INTerpath-011)

Inclusion Criteria:

The main inclusion criteria include but are not limited to the following:

\- Is an individual whose most recent TURBT was performed within 12 weeks before randomization/allocation and showed BICR-confirmed high-risk NMIBC histology

Cohort A:

* Has high-risk non-muscle invasive (HG Ta, T1, and/or CIS) UC of the bladder
* Is BCG-naïve defined as either having never received BCG or having received BCG more than 2 years before high-risk NMIBC recurrence. Recurrence must be at least 24 months from the last exposure to BCG with evidence of complete response during the 2-year period post BCG

Cohort B:

* Has CIS +/-papillary non-muscle invasive UC of the bladder
* Is ineligible for, or refusing, any IVESIC therapy
* Is either BCG-naïve (as defined above) or BCG-exposed but did not receive protocol-specified minimum dosing of BCG and experienced recurrence of high-risk NMIBC within 2 years of the last dose of BCG
* Human immunodeficiency virus (HIV)-infected individuals must have well controlled HIV on antiretroviral therapy (ART)

Exclusion Criteria:

The main exclusion criteria include but are not limited to the following:

* Has a history of or concurrent locally-advanced (ie, T2, T3, T4) or metastatic UC
* Has concurrent extravesical (ie, urethra, ureter, renal pelvis) non-muscle invasive UC or a history of extravesical non-muscle invasive UC that recurred within the last 2 years, with certain exceptions
* Has a known additional malignancy that is progressing or has required active treatment within the last 3 years
* Has had a myocardial infarction within 6 months of randomization/allocation
* Has received any systemic anticancer therapy including investigational agents within 4 weeks before randomization/allocation
* Has received prior treatment with a cancer vaccine
* Has immunodeficiency or is receiving chronic systemic steroid therapy
* Has active autoimmune disease that has required systemic treatment in the last 2 years
* Has any contraindication to IV contrast and gadolinium or is otherwise unable to have imaging with either computerized tomography urogram (CTU) or Magnetic resonance urography (MRU)

Cohort A:

* Has current active tuberculosis
* Has a known history of HIV infection

Cohort B:

\- HIV-infected individuals with a history of Kaposi's sarcoma and/or Multicentric Castleman's Disease