Abstract
17112 Background: Recent trials have shown that the combination docetaxel-cisplatin is an effective first-line treatment in locally advanced or metastatic NSCLC. However, the regimen can be associated with a marked rate of neutropenia. The present study tests the efficacy and tolerability of a weekly schedule of docetaxel and cisplatin. Methods: Patients (pts) with histologically confirmed NSCLC stages UICC IIIB (malignant effusion) or IV were treated with docetaxel (35 mg/m2, 30 min. infusion) and cisplatin (25 mg/m2, 30 min. infusion) on days 1, 8 and 15 repeated every 4 weeks for 4 to 6 cycles. This phase II study is scheduled to include 50 pts and primary endpoint is tumour response rate. Pts received 8 mg of ondansetron and 8 mg of dexamethasone i.v. preceding every day of therapy and oral dexamethasone 2 × 4 mg from the day before until the day after chemotherapy. NK1-antagonists were given at discretion of the investigator. In total, 2750 ml of volume were infused on each day of therapy. Most of the pts were treated in an outpatient department. Safety was assessed via common terminology criteria for adverse events v3.0 (CTCAE 3.0). Interim tolerability data is presented. Results: Currently, 28 pts were evaluable for this interim tolerability analysis. Pts received a median of 3 full cycles. There were no treatment-related deaths. Dose reductions of docetaxel and cisplatin due to poor tolerability were necessary in 3 pts (11%). No pts suffered from neutropenic fever while grade 3 neutropenia occurred in only 2 pts (7%). There was no grade 2/3/4 thrombocytopenia. 5 pts (18%) had grade 2 anemia, and 2 pts (7%) had an elevation of the plasma creatinine (both grade 1). Other toxicities were non-neutropenic infections (5/1/1 pts with grade 2, 3, 4, respectively), diarrhea (3 pts [11%] with grade 3), constipation (5 pts [18%] with grade 2) and mucositis (4 pts [14%] with grade 2/3). There was no grade 3/4 nausea or vomiting; 3 pts [11%] had grade 2 nausea/vomiting. Conclusions: In the present study, the combination of docetaxel and cisplatin appears well tolerated. It was associated with a very low frequency of severe hematologic toxicity or neutropenic fever. With relatively low hydration volumes it can be safely administered in an outpatient setting. [Table: see text]
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