Induction chemotherapy with docetaxel, cisplatin and cetuximab versus docetaxel, cisplatin and 5-fluorouracil followed by radiotherapy with cetuximab for locally advanced or inoperable squamous cell carcinoma of the head and neck: Promising results of a randomized phase II AGMT-trial.

Authors

null

Felix Keil

Medical Dept. Int. Med. 3, Hematology and Oncology, Hanusch-Krankenhaus, Vienna, Austria

Felix Keil , Maximilian Hartl , Gabriela Altorjai , Martin Pecherstorfer , Beate Mayrbäurl , Alexander de Vries , Andrea Berghold , Regina Riedl , Michael A. Fridrik , Thorsten Fuereder , Martin Burian , Richard Greil

Organizations

Medical Dept. Int. Med. 3, Hematology and Oncology, Hanusch-Krankenhaus, Vienna, Austria, Department of Otolaryngology, Head and Neck Surgery, Hospital of Bamherzigen Schwestern, Linz, Austria, Medical University Vienna, University Clinic of Radiation Therapy and Radiation Biology, General Hospital of Vienna, Vienna, Austria, University Clinic of Internal Medicine II, Department of Hematology and Oncology, Krems, Austria, Department of Internal Medicine IV, Hematology, internal Oncology and palliative Medicine, Nephrology and Dialysis, Wels, Austria, Department of Radiotherapy and Radio-Oncology, LKH Feldkirch, Feldkirch, Austria, Institute for Medical Informatics, Statistics and Documentation, Medical University of Graz, Graz, Austria, Institute for Med. Informatics, Statistics and Documentation, Medical University Graz, Graz, Austria, Kepler University Clinic of Internal Medicine II, Department of Hematology and Oncology, Linz, Austria, Medical University Vienna, Department of Medicine I, Clinical Division of Oncology and Comprehensive Cancer Center, Vienna, Austria, Department of Internal Medicine III with Hematology, Medical Oncology, Hemostaseology, Infectious Diseases, Rheumatology, Oncologic Center, Paracelsus Medical University, Salzburg, Austria

Research Funding

Pharmaceutical/Biotech Company

Background: Induction chemotherapy (ICT) with Cisplatin (P), 5-FU (F) and Taxanes (T) is a therapeutical option in patients suffering from locally advanced or unresectable stage III or IV squamous cell carcinoma of the head and neck (SCCHN). The role of ICT is controversial and toxicity and/or delay of radiotherapy may reduce the potential benefit of this treatment regimen. Here we report promising results of a randomized phase II trial comparing TPF with TP and Cetuximab (C) replacing F. Methods: In our trial, N= 100 patients with locally advanced or unresectable stage III or IV SCCHN were randomly assigned to either Arm A (N= 49), receiving TPF, or Arm B (N= 51), receiving TPC, both followed by radiotherapy (RT) + C. The primary end-point of the study was overall response rate (ORR) three months after RT + C was finished. Results: We observed a remarkable response rate (CR + PR) of 86.4% in the TPC-arm that compared favorably with 77.5% responding patients in the TPF-arm three months after RT + C was completed. OS and PFS were similar in both arms. After 400 days we observed an OS rate of 79% in the TPF and 86% in the TPC arm, and a PFS rate of 67% in the TPF and 70% in the TPC arm. TPC containing ICT led to less serious adverse events (SAEs), including blood and lymphatic disorders (40.8% in TPF arm, 27.5% in TPC arm) and metabolism and nutrition disorders (22.4% in TPF arm, 9.8% in TPC arm) during ICT. Interestingly, in HPVp16 positive patients, 88.24% in the TPF-arm and 93.33% in the TPC-arm showed CR or PR three months after RT + C, whereas only 69.57% in the TPF-arm and 82.76% in the TPC-arm showed CR or PR. We only lost one patient because of treatment-related mortality (TRM) and no delay from the end of ICT to local radiotherapy was observed in any patient. All patients received RT + C within three weeks after ICT was completed. Conclusions: In conclusion, TPC is a feasible and tolerable therapy regimen and can be applied within one day with less hematological toxicities. In contrast, more local reactions were observed after TPC. TPC containing ICT leads to improved response rates, while OS and PFS were similar in both arms. TRM was extremely low with 1%. Therefore, we conclude, that TPC containing ICT could be a considerable therapeutical alternative for patients with locally advanced or unresectable stage III or IV SCCHN, who are eligible for ICT. Clinical trial information: 2011-005540-99.

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Abstract Details

Meeting

2019 ASCO Annual Meeting

Session Type

Poster Session

Session Title

Head and Neck Cancer

Track

Head and Neck Cancer

Sub Track

Advanced/Metastatic Disease

Clinical Trial Registration Number

2011-005540-99

Citation

J Clin Oncol 37, 2019 (suppl; abstr 6027)

DOI

10.1200/JCO.2019.37.15_suppl.6027

Abstract #

6027

Poster Bd #

16

Abstract Disclosures