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Clinical trial · no report yet · Phase 3

AMBASSADOR

Testing MK-3475 (Pembrolizumab) After Surgery for Localized Muscle-Invasive Bladder Cancer and Locally Advanced Urothelial Cancer

  • NCT03244384 ↗
  • Active not recruiting
  • National Cancer Institute (NCI)
  • 4 commentary sources found
  • Focused

We haven't built a report for this trial yet. This page shows the registry record and the public commentary we found that names the trial. A report reads that commentary and sets out what clinicians said about the trial, each point linked to its source. How reports are made.

Commentary we found

Podcasts, YouTube videos and X posts in our index that name this trial. A report screens them, searches for more and cites what clinicians said when it is built. Commentary is thin so far, so the report would be short.

ChannelFound
X threads4

The trial

ClinicalTrials.gov
Official title
Phase III Randomized Adjuvant Study of Pembrolizumab in muScle invaSive and locAlly aDvanced urOthelial caRcinoma (AMBASSADOR) Versus Observation
Phase
Phase 3
Status
Active not recruiting
Conditions
Localized Renal Pelvis and Ureter Urothelial Carcinoma; Locally Advanced Bladder Urothelial Carcinoma; Locally Advanced Renal Pelvis and Ureter Urothelial Carcinoma; Locally Advanced Ureter Urothelial Carcinoma; Locally Advanced Urothelial Carcinoma; Stage II Bladder Urothelial Carcinoma AJCC v6 and v7; Stage II Renal Pelvis and Ureter Cancer AJCC v7; Stage II Ureter Cancer AJCC v7; Stage III Bladder Urothelial Carcinoma AJCC v6 and v7; Stage III Renal Pelvis and Ureter Cancer AJCC v7; Stage III Ureter Cancer AJCC v7
Interventions
Biospecimen Collection; Clinical Observation; Computed Tomography; CT Urography; Cystoscopy; Magnetic Resonance Imaging; Pembrolizumab; Pharmacological Study; Quality-of-Life Assessment; Questionnaire Administration
Arms
  • Arm A (pembrolizumab) · Experimental
  • Arm B (observation) · Active comparator
Enrollment
739 (estimated)
Primary outcomes
  • Overall survival
  • Disease-free survival
Sponsor
National Cancer Institute (NCI)
Start
Nov 3, 2017
Primary completion
Oct 31, 2026 (estimated)
Results posted
No
Registry record
NCT03244384 · updated Oct 1, 2026

Publications

linked from the registry
  • Apolo AB, Ballman KV, Sonpavde G, Berg S, Kim WY, Parikh R, Teo MY, Sweis RF, Geynisman DM, Grivas P, Chatta G, Reichert ZR, Kim JW, Bilen MA, McGregor B, Singh P, Tripathi A, Cole S, Simon N, Niglio S, Ley L, Cordes L, Srinivas S, Huang J, Odegaard M, Watt C, Petrylak D, Hoffman-Censits J, Wen Y, Hahn O, Mitchell C, Tan A, Streicher H, Sharon E, Moon H, Woods M, Halabi S, Perez Burbano G, Morris MJ, Rosenberg JE. Adjuvant Pembrolizumab versus Observation in Muscle-Invasive Urothelial Carcinoma. N Engl J Med. 2025 Jan 2;392(1):45-55. doi: 10.1056/NEJMoa2401726. Epub 2024 Sep 15. PubMed 39282902