A Clinical Study of Intismeran Autogene (V940) Treatment and Pembrolizumab in People With Bladder Cancer (V940-005/INTerpath-005)

Condition(s) studied

Investigational drug(s) / intervention(s)

Pembrolizumab: Administered via intravenous (IV) infusion at a dose of 400 mg on Day 1 of every 6-week cycle for up to 9 adjuvant cycles for Adjuvant Cohort participants, or at a dose of 200 mg on Day 1 of every cycle for up to four 3-week neoadjuvant cycles and up to thirteen 3-week adjuvant cycles for Perioperative Cohort participants.

Intismeran autogene: Administered via intramuscular (IM) injection at a dose of 1 mg every 3 weeks for a total of up to 9 adjuvant doses for Adjuvant Cohort participants, or at a dose of 1 mg every 3 weeks for a total of up to 9 doses in the neoadjuvant and adjuvant periods for Perioperative Cohort participants.

Placebo: Intismeran autogene diluent only (saline and/or dextrose) administered via IM injection Q3W for up to 9 doses.

Enfortumab Vedotin: Administered via IV infusion at a dose of 1.25 mg/kg on Day 1 and Day 8 of every cycle for up to four 3-week neoadjuvant cycles and up to five 3-week adjuvant cycles for Perioperative Cohort participants.

Surgery (RC plus PLND): Curative intent surgery (RC plus PLND) will be administered to all participants in the Perioperative Cohort and will be done in accordance with the American Urological Association/American Society for Radiation Oncology/American Society of Clinical Oncology/Society of Urologic Oncology guidelines. RC plus PLND will be performed within 6 weeks of the last dose of neoadjuvant intismeran autogene plus pembrolizumab plus EV treatment. Adjuvant intismeran autogene plus pembrolizumab plus EV treatment will begin within 8 weeks of completing RC plus PLND.

Study summary

Researchers are looking for new ways to treat people with high-risk muscle-invasive urothelial carcinoma (MIUC). Urothelial carcinoma is a type of bladder cancer that begins in cells that line the inside of the bladder and other parts of the urinary tract, such as part of the kidneys, ureters, and urethra. People with MIUC usually have chemotherapy before surgery, then surgery to remove the cancer. Chemotherapy is a type of medicine to destroy cancer cells or stop them from growing. After surgery, some people receive more treatment to prevent cancer from returning. Pembrolizumab is an immunotherapy, which is a treatment that helps the immune system fight cancer. Enfortumab vedotin (EV) is an antibody drug conjugate (ADC). An ADC attaches to a protein on cancer cells and delivers treatment to destroy those cells. Researchers want to learn if giving intismeran autogene (the study treatment) with pembrolizumab can prevent MIUC from returning after surgery. Intismeran autogene (also called mRNA-4157) is designed to treat each person's cancer by helping the person's immune system identify and kill cancer cells based on certain proteins found on those cancer cells.

The goals of this study are to learn if people who receive intismeran autogene and pembrolizumab are alive and cancer free longer than those who receive placebo and pembrolizumab, and to learn about the safety of intismeran autogene, pembrolizumab, and EV, and if people tolerate them.

Eligibility

Primary outcome measure(s)

• Adjuvant Cohort: Disease Free Survival (DFS) — Up to approximately 28 months
  DFS is defined as the time from randomization until death from any cause, or presence of disease per investigator assessment with muscle-invasive (≥pT2) disease or any high-grade non-muscle invasive disease in the urothelial tract (upper tract or lower tract) on imaging and biopsy, and/or disease recurrence outside the urothelial tract on imaging with or without confirmation by biopsy. DFS will be reported for the Adjuvant Cohort.
• Perioperative Cohort: Number of Participants Who Experience an Adverse Event (AE) — Up to approximately 19 months
  An AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of study treatment, whether or not considered related to the study treatment. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease (new or exacerbated) temporally associated with the use of a study treatment. The number of participants who experience AEs will be reported for the Perioperative Cohort.
• Perioperative Cohort: Number of Participants Who Discontinue Study Treatment Due to AE — Up to approximately 16 months
  An AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of study treatment, whether or not considered related to the study treatment. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease (new or exacerbated) temporally associated with the use of a study treatment. The number of participants who discontinue study treatment due to an AE will be reported for the Perioperative Cohort.

Trial sites (74)

+ 34 more sites — see the full list on the official registry below.

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