Front-line weekly chemotherapy with gemcitabine for unfit patients with non-small cell lung cancer (NSCLC).

摘要

Chemotherapy (CT) for elderly patients is becoming a standard, since the first demonstration by Gridelli and co-workers that chemotherapy (in their case Vinorelbine (VNB), single agent) is capable to produce significant survival benefits. Much less is known concerning the use of CT for unfit patients. The purpose of this phase II trial was to perform a comprehensive evaluation of activity, toxicity, and tolerability of single-agent Gemcitabine (GEM) (Gemzar) as a first-line chemotherapy for unfit patients with inoperable or recurrent non-small cell lung cancer. Patients were eligible if they had a pathological diagnosis and no previous chemotherapy; they should be younger than 76, with a performance status (ECOG-PS) equal to three; informed consent was also required. Gemcitabine was given by intravenous infusion at a weekly dose of 1250 mg/m2, 3 weeks per month, every 28 days. Treatment was given until progression, persistent toxicity, or refusal. Forty-five patients (39 males) entered the study; median age was 73 years (range 45-75); cell types were: adenocarcinoma (21), squamous (18), large cell (6). Previous surgical treatments included three lobectomies and one pneumectomy. Because of rapid clinical deterioration or consent withdrawal, six patients, registered for study, never started their treatment; other six had early chemotherapy suspension. These patients were included in the analysis, on an "intent-to-treatment" basis. The median number of chemotherapy cycles was nine (range 0-15); median dose-intensity was 75% of projected. Toxicity was mild, mainly hematological and never life threatening (only 1 grade 4 toxicity out of 325 pre-chemotherapy evaluations). Four patients obtained a partial response (9%, C.I. 1-17%) and other six patients had some tumor regression (13%, C.I. 3-23%). The estimated median time to progression was 17 weeks (quartile range: 9-24), with a median survival of 35 weeks (quartile rage: 20-51). We have found that single-agent gemcitabine represent a sufficiently safe therapeutic option in unfit patients with inoperable non-small cell carcinoma (NSCLC).