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Collaborative phase I and II studies of the combination of gemcitabine and cisplatin in patients with advanced non-small cell lung cancer are ongoing at five centres in the UK and France. In the initial completed phase I study, 16 patients (15 evaluable) have been entered using a fixed dose of gemcitabine 1000 mg/m2 given as a 30 min intravenous infusion weekly for 3 weeks. On the third week the gemcitabine was immediately followed by cisplatin with pre- and post-hydration. This regimen required only 1 night of hospitalization every 4 weeks. The study design was for sequential groups of patients to receive 3 dose levels of cisplatin (60 mg/m2, 75 mg/m2 and 100 mg/m2) but these doses would be modified and the number of patients at any dose level could be increased if significant toxicity was observed. Three patients were to be entered at the first two dose levels and 10 patients were to confirm the maximum tolerated dose (if reached) or expand the database on toxicity at the final predetermined dose level. The major haematological toxicities were neutropenia (grade 4 in 3 patients) and thrombocytopenia (grade 3 or 4 in 5 patients) but both were of short duration and uncomplicated. Grade 3 nausea and vomiting occurred in 12 patients but was no worse than would be expected from cisplatin alone. Alopecia was not a problem (no hair loss in 10 patients and grade 1 or 2 in 6 patients) and no significant renal or neurotoxicity was seen. A phase II study using cisplatin 100 mg/m2 in combination with gemcitabine 1000 mg/m2 has been opened and to date 19 patients are evaluable for response. Eight (42%) have achieved partial remissions. The study is ongoing and will recruit 50 evaluable patients.

Type

Conference paper

Publication Date

12/1995

Volume

6 Suppl 6

Pages

33 - 37

Keywords

Antimetabolites, Antineoplastic, Antineoplastic Combined Chemotherapy Protocols, Carcinoma, Non-Small-Cell Lung, Cisplatin, Deoxycytidine, Female, Humans, Lung Neoplasms, Male, Middle Aged, Neoplasm Staging