In the randomized, phase 3 IMvigor011 trial, atezolizumab reduced the risk of disease recurrence or death by 36% and the risk of death by 41% compared with placebo, specifically in…
In the randomized, phase 3 AMBASSADOR trial, adjuvant pembrolizumab after radical surgery significantly extended disease-free survival compared with observation alone in patients with high-risk muscle-invasive or locally advanced urothelial carcinoma.…
In the randomized, phase 3 IMvigor011 trial, atezolizumab reduced the risk of disease recurrence or death by 36% and the risk of death by 41% compared with placebo, specifically in…
In the randomized, phase 3 AMBASSADOR trial, adjuvant pembrolizumab after radical surgery significantly extended disease-free survival compared with observation alone in patients with high-risk muscle-invasive or locally advanced urothelial carcinoma.…
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Last reviewed
Clinical Trials
Important: Eligibility and enrollment are not guaranteed, and listing here is not a treatment recommendation. Talk to your care team.
Adults with high-risk muscle-invasive or locally advanced urothelial (bladder) carcinoma, following radical surgical removal of the bladder (radical cystectomy or nephroureterectomy), randomized to adjuvant pembrolizumab or observation alone.
Last reviewed
2026-08-13
Regulatory status by jurisdiction
Unspecified jurisdiction
Status
Investigational
Last verified
2026-08-13
This record has no structured cancer-type scope on file yet — editorial review recommended before treating it as applicable to a specific cancer type.
AMBASSADOR/A031501 trial primary results: adjuvant pembrolizumab in muscle-invasive urothelial carcinoma (NEJM). DOI 10.1056/NEJMoa2401726, PMID 39282902.
Eligibility varies — review trial criteria.
FDA Approvals
Regulatory approval is separate from evidence certainty and from guideline position. Approval applies only to the exact indication stated in each jurisdiction record.
Adults with muscle-invasive bladder cancer (MIBC) who had radical cystectomy with lymph node dissection and had detectable circulating tumor DNA (ctDNA) molecular residual disease (MRD) on serial blood testing within 12 months of surgery, randomized to atezolizumab or placebo, in the randomized, double-blind, phase 3 IMvigor011 trial.
View approval details
Last reviewed
2026-08-13
Regulatory status by jurisdiction
United States (FDA)
Status
FDA-approved for the exact stated cancer/use
Indication
Adults with muscle-invasive bladder cancer after cystectomy who have ctDNA molecular residual disease, as determined by an FDA-authorized test.
Biomarker requirement
Circulating tumor DNA (ctDNA) molecular residual disease, as determined by Signatera CDx
Adjuvant Atezolizumab Guided by Circulating Tumor DNA in Muscle-Invasive Bladder Cancer (New England Journal of Medicine). DOI 10.1056/NEJMoa2511885, PMID 41124204.
CancerDiscoveries summarizes verified records in its database. Absence of a listing here does not establish that a treatment lacks regulatory authorization or access.