A randomized phase II trial of induction chemotherapy followed by cisplatin chronotherapy versus constant rate delivery combined with radiotherapy.
Chronobiol Int. 2017 Dec 07;:1-9
Authors: Zhang PX, Jin F, Li ZL, Wu WL, Li YY, Long JH, Chen GY, Chen XX, Gan JY, Gong XY, He QY, Bi T
Abstract
Chronotherapy is no longer a novel concept in cancer treatment after approximately 20 years of development. Many clinical trials have provided strong supporting evidence that chronomodulated treatment yields better results than a traditional dosage regimen. This study aimed to evaluate the adverse reactions, effect on immune functions, and therapeutic efficacy of chronomodulated infusion versus flat intermittent infusion of cisplatin (DDP) combined with intensity-modulated radiation therapy (IMRT) in patients with locoregionally advanced nasopharyngeal carcinoma (NPC). A total of 148 patients with biopsy-diagnosed untreated stage III-IVb NPC were randomly assigned to undergo two cycles of chronomodulated infusion (study group) or flat intermittent infusion (control group) of DDP (100 mg/m2 on day 1, 21 days/cycle) synchronized with radical radiotherapy. Patients in the study group received chronomodulated infusion, with peak delivery of DDP at 16:00 pm. Patients in the control group received a routine constant rate of infusion. Both groups were treated with the same radiotherapy techniques. Over a median follow-up of 20 months, the study group had better outcomes for adverse effects and immune functions compared with the control group. During the phase of concurrent chemoradiotherapy, the incidence of nausea, vomiting, and oral mucositis in the study and control groups was 66.7% and 79.5% (p < 0.05), 47.9% and 71.2% (p < 0.05), and 73.9% and 87.7% (p < 0.05), respectively. There was no significant difference in 2-year overall survival, progression-free survival, and distant metastasis-free survival between the two groups (p > 0.05). Chronochemotherapy significantly reduced the incidence of adverse reactions and enhanced the tolerance for treatment without affecting survival. It is worth mentioning that reduced destruction of immune function is a novel area of exploration in chronotherapy research.
PMID: 29215933 [PubMed - as supplied by publisher]
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Medicine by Alexandros G. Sfakianakis,Anapafseos 5 Agios Nikolaos 72100 Crete Greece,00302841026182,00306932607174,alsfakia@gmail.com,