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Clinical Trial Summary

The general aim of the study is to evaluate the anti-tumour activity and the tolerance profile of Pembrolizumab + RT in comparison to cetuximab + RT in patients with locally advanced HNSCC and to explore potential correlations between treatment outcome and the immune landscape.


Clinical Trial Description

A majority of HNSCC are locally advanced and commonly treated with concomitant chemo-radiotherapy (CT-RT). However, a large proportion of patients with locally advanced stage are not suitable for receiving cisplatinum-based chemotherapy (CT) concomitant with radiotherapy (RT) either due to age, general and/or medical condition(s). An alternative standard treatment has been established, combining RT and cetuximab. However, both CT-RT and cetuximab-RT which are considered as standard approaches in locally advanced non operated HNSCC are associated with poor outcome in patients with the most advanced T stage (T4) and/or N stage (>=N2) and/or HPV negative tumours. A new and promising approach could target immune response. Pembrolizumab is a high-affinity monoclonal anti-PD1 antibody which showed antitumor activity in melanoma and NSCLC. In the KEYNOTE-012 (multi-center, nonrandomized Phase Ib HNSCC), Pembrolizumab was well tolerated and safe with no serious drug related AEs reported. About 51% (26/51) of patients had decreased tumor burden which was seen both in HPV (-) and HPV(+) HNSCC. This observation led to the hypothesis generated in the current study that Pembrolizumab is potentially a very active drug in HNSCC and that the combination of Pembrolizumab with radiotherapy will be well tolerated, given the very good toxicity profile of the drug and will improve the outcome of patients with locally advanced HNSCC non suitable for CT-RT, as compared to the treatment of reference combining cetuximab and RT. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT02707588
Study type Interventional
Source Groupe Oncologie Radiotherapie Tete et Cou
Contact
Status Completed
Phase Phase 2
Start date May 18, 2016
Completion date October 17, 2022

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