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A Phase II, Randomized, Double-Blind Study of Atezolizumab Plus Tiragolumab and Atezolizumab Plus Placebo as First-Line Treatment in Patients with Recurrent/Metastatic PD-L1-Positive Squamous Cell Carcinoma of the Head and Neck

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
EU CTIS
Registry ID
CTIS2023-509449-10-00
Acronym
BO42533
Enrollment
72
Registered
2024-07-31
Start date
2021-03-16
Completion date
2025-08-27
Last updated
2025-08-04

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Squamous cell carcinoma of the head and neck (SCCHN)

Brief summary

1. Confirmed objective response rate

Detailed description

1. Duration of Response, 2. Progression free survival, 3. Overall survival, 4. Progression free survival rate at 6 months, 5. Overall survival rate at 6 months and 12 months, 6.Time to confirmed deterioration in patient-reported physical functioning, 7. Incidence and severity of adverse events, with severity determined according to National Cancer Institute Common Terminology Criteria for Adverse Events, Version 5.0, 8. Serum concentration of atezolizumab and tiragolumab at specified timepoints, 9. Prevalence of anti-drug antibodies (ADAs) to atezolizumab at baseline and during the study, 10.Prevalence of ADAs to tiragolumab at baseline and during the study

Interventions

DRUGTiragolumab
DRUGTecentriq 1 200 mg concentrate for solution for infusion

Sponsors

F. Hoffmann-La Roche AG
Lead SponsorINDUSTRY

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Design outcomes

Primary

MeasureTime frame
1. Confirmed objective response rate

Secondary

MeasureTime frame
1. Duration of Response, 2. Progression free survival, 3. Overall survival, 4. Progression free survival rate at 6 months, 5. Overall survival rate at 6 months and 12 months, 6.Time to confirmed deterioration in patient-reported physical functioning, 7. Incidence and severity of adverse events, with severity determined according to National Cancer Institute Common Terminology Criteria for Adverse Events, Version 5.0, 8. Serum concentration of atezolizumab and tiragolumab at specified timepoints, 9. Prevalence of anti-drug antibodies (ADAs) to atezolizumab at baseline and during the study, 10.Prevalence of ADAs to tiragolumab at baseline and during the study

Countries

Czechia, France, Greece, Hungary, Poland, Spain

Outcome results

None listed

Source: EU CTIS · Data processed: Feb 4, 2026