Radiotherapy With Double Checkpoint Blockade of Locally Advanced HNSCC

  • End date
    Apr 17, 2022
  • participants needed
  • sponsor
    University of Erlangen-Nürnberg Medical School
Updated on 3 October 2021


First-line treatment of locally advanced HNSCC with double checkpoint blockade and radiotherapy dependent on intratumoral CD8+ T cell Infiltration.


This is a single arm, open-label, prospective, non-randomized Phase II clinical trial of locally advanced HNSCC with double checkpoint blockade and radiotherapy dependent on intratumoral CD8+ T cell Infiltration.

All patients will initially be treated with the PD-L1 inhibitor Durvalumab (1500 mg q4w) and the CTLA-4 Inhibitor Tremelimumab (75 mg q4w / since Amendment 3 (01.04.2020): 300 mg absolute dose d5) and one cycle with Cisplatin (30mg/m d1-3) and Docetaxel (75mg/m d1). Treatment response will be evaluated clinically by endoscopy with biopsy. Changes of the CD8+ T cell density in the second biopsy compared to the first one before therapy will be used for patient selection. Patients with a stable or decreased CD8+ tumor infiltrating immune cell density or clinical progressive disease will receive standard CRT outside the trial. For these patients toxicity will be monitored until the first dose of the subsequent standard CRT. Patients with an increased CD8+ tumor infiltrating immune cell density and at least clinically stable disease will receive radioimmunotherapy with the PD-L1 Inhibitor Durvalumab and the CTLA4-Inhibitor Tremelimumab (altogether 4 doses q4w including the induction dose) followed by maintenance therapy with Durvalumab (8 additional doses q4w). The primary endpoint is feasibility. Feasibility criteria are receiving the protocol treatment until cycle 6 of antibody treatment and absence of any of the DLT defined in the protocol. A feasibility rate of 80% is expected. The efficacy of radioimmunotherapy and predictive character of changes of CD8+ tumor infiltrating immune cells after induction chemo-immunotherapy are further endpoints. The follow up period will be two years after the completion of radiotherapy.

Condition Locally Advanced Head and Neck Squamous Cell Carcinoma
Treatment Durvalumab + Tremelimumab + RT
Clinical Study IdentifierNCT03426657
SponsorUniversity of Erlangen-Nürnberg Medical School
Last Modified on3 October 2021

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