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Clinical Trial Active — Not Recruiting Phase III NCT04543617

A Study of Atezolizumab With or Without Tiragolumab in Participants With Unresectable Esophageal Squamous Cell Carcinoma Whose Cancers Have Not Progressed Following Definitive Concurrent Chemoradiotherapy

A Study of Atezolizumab With or Without Tiragolumab in Participants With Unresectable Esophageal Squamous Cell Carcinoma Whose Cancers Have Not Progressed Following Definitive Concurrent Chemoradiotherapy — Active Not…

📅 23 Jul 2026 ⏱ 1 min read
Active — Not Recruiting
Check the registry for current status and eligibility criteria.
Status
Active — Not Recruiting
Phase
Phase III
NCT ID
NCT04543617
Start
2020-09-28
Completion
2027-03-31
ClinicaliQ Trial Snapshot
  • A Study of Atezolizumab With or Without Tiragolumab in Participants With Unresectable Esophageal Squamous Cell Carcinoma Whose Cancers Have Not Progressed Following Definitive Concurrent Chemoradiotherapy — Active Not Recruiting • Phase III • Oncology • NCT04543617.
  • Trial testing whether adding tiragolumab to atezolizumab improves outcomes in advanced oesophageal cancer after chemoradiotherapy.

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What This Trial Is Studying

The purpose of this study is to evaluate the efficacy and safety of tiragolumab plus atezolizumab compared with placebo in participants with unresectable esophageal squamous cell carcinoma (or those who are unable or unwilling to undergo surgery) and whose cancers have not progressed following definitive concurrent chemoradiotherapy (dCRT). Participants will be randomized in a 1:1:1 ratio to receive either tiragolumab plus atezolizumab (Arm A), tiragolumab matching placebo plus atezolizumab (Arm B), or double placebo (Arm C). Conditions: Esophageal Squamous Cell Carcinoma Interventions: Tiragolumab, Atezolizumab, Tiragolumab Matching Placebo, Atezolizumab Matching Placebo…

Full Trial Details
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Eligibility criteria, protocol, and results when available
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