High-dose intra-arterial cisplatin boost with hyperfractionated radiation therapy for advanced squamous cell carcinoma of the head and neck
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Endobronchial Ultrasound-guided Intratumoral Injection of Cisplatin for the Treatment of Isolated Mediastinal Recurrence of Lung Cancer
Published on: February 12, 2017
W F Regine1, J Valentino, S M Arnold
1Department of Radiation Medicine, University of Kentucky, Lexington, KY 40536-0293, USA. wilregi@pop.uky.edu
Purpose:
To evaluate the tolerance and efficacy of intra-arterial (IA) cisplatin boost with hyperfractionated radiation therapy (HFX-RT) in patients with advanced squamous cell carcinoma of the head and neck (SCCHN).
Patients And Methods:
Forty-two patients with locally advanced primary SCCHN were treated on consecutive phase I/II studies of HFX-RT (receiving a total of 76.8 to 81.6 Gy, given at 1.2 Gy bid) and IA cisplatin (150 mg/m(2) received at the start of and during RT boost treatment).
Results:
Acute grade 3 to 4 toxicities were as follows: grade 4 and grade 3 mucosal toxicity occurred in three (7%) and 31 patients (69%), respectively, and grade 3 hematologic, infectious, and skin events occurred in one patient each. Eight of 24 patients (33%) were unable to receive a second planned dose of IA cisplatin because of general anxiety (n = 5), nausea and/or emesis (n = 2), or asymptomatic occlusion of an external carotid artery (n = 1). Thirty-seven patients (88%) experienced complete response (CR) at primary site. Twenty-nine (85%) of 34 patients presenting with nodal disease experienced CR. The actuarial 2-year rates of locoregional control and disease-specific and overall survival are 73%, 63%, and 57%, respectively, with a median active follow-up of 30 months.
Conclusion:
In this highly unfavorable subset of patients, these results seem superior to previously reported chemoradiation regimens in more favorable patients. Use of a second dose of IA cisplatin boost was associated with increased toxicity without obvious therapeutic gain. This novel strategy allows for an incremental increase in the treatment intensity of the HFX-RT regimen recently established as superior to once-a-day RT.
