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A Global Study of Volrustomig (MEDI5752) for Participants With Unresected Locally Advanced Head and Neck Squamous Cell Carcinoma Following Definitive Concurrent Chemoradiotherapy

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Brief Summary

The main purpose of this study is to assess the efficacy and safety of volrustomig compared to observation in participants with unresected locally advanced head and neck squamous cell carcinoma (LA-HNSCC) who have not progressed after receiving definitive concurrent chemoradiotherapy (cCRT).

Primary Purpose

Treatment

Study Type

Interventional

Phase

Phase 3

Eligibility

Gender

All

Healthy Volunteers

Minimum Age

18 Years

Maximum Age

130 Years

Inclusion Criteria:

Histologically or cytologically documented locally advanced squamous cell carcinoma of the oropharynx, hypopharynx, oral cavity, or larynx with no evidence of metastatic disease (i.e. M0).
Confirmed unresected Stage III, Stage IVA or IVB according to the eighth edition of the American Joint Committee on Cancer (AJCC) staging manual (tumor, node, metastasis (TNM) staging system).
Participants will have completed definitive concurrent chemoradiotherapy (cCRT) with curative intent within 12 weeks prior to randomization.

Exclusion Criteria:

* Histologically/cytologically confirmed head and neck cancer of any other primary anatomic location in the head and neck not specified in the inclusion criteria including participants with squamous cell carcinoma of unknown primary or non-squamous histologies (eg, nasopharynx or salivary gland). Participants with >1 primary tumors are not eligible for the study.

Participants with any of the following:
- Residual disease that needs further treatment with curative intent after definitive cCRT administration;
- LA-HNSCC that was resected before definitive cCRT
- LA-HNSCC that was treated and is recurrent at the time of screening
Participants who have received radiotherapy (RT) alone as definitive local therapy for LA-HNSCC.
Receipt of the last dose of anticancer therapy (chemotherapy and/or RT) > 12 weeks (84 days) prior to randomization.

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