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

Running, not enrolling · Phase 3 · Has a placebo group

Conditions studied: Esophageal Squamous Cell Carcinoma

In brief

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).

Key facts

Study ID
NCT04543617
Run by
Hoffmann-La Roche
People needed
760
Starts
2020-09-28
Expected to finish
2027-03-31
Last updated by the study team
2026-07-23

Who can join

Age: 18 and older. Sex: any. Healthy volunteers: not accepted.

Where it is running

Full record on ClinicalTrials.gov

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