Safety of First-line Chemotherapy with Metronomic Single-agent Oral Vinorelbine in Elderly Patients with NSCLC.

BACKGROUND/AIM: The optimal therapeutic use of metronomic vinorelbine has not yet been defined. We aimed to assess the safety of metronomic oral vinorelbine in first-line treatment of elderly patients with advanced lung cancer who were unfit for polychemotherapy. Progression-free survival, response rate and overall survival were secondary end-points. PATIENTS AND METHODS: Seventy-six patients received 50 mg of oral vinorelbine three times per week, until disease progression, patient refusal or unacceptable toxicity. Patients were evaluated for response and toxicity after one cycle of chemotherapy. The treatment was considered feasible with a grade 3/4 toxicity rate lower than 20%. RESULTS: Clinical benefit was observed in 50% of patients. Median overall survival was 8.0 months. Grade 1/2 toxicity was observed in 53 patients (69.7%), grade 3 toxicity in eight patients (10.5%). One patient had grade 4 diarrhea. CONCLUSION: Metronomic oral vinorelbine is safe in elderly patients, allowing for long-term disease stabilization with optimal patient compliance.

Clinical Features and Treatment Outcome of Malignant Pleural Mesothelioma.

BACKGROUND: Malignant pleural mesothelioma is a problematic condition due to poor prognosis and difficulties in management. We evaluated the treatment and outcome of 378 mesothelioma patients referred to 6 Italian Oncology Departments. METHODS: Demographic and clinical data were collected. Treatment was assessed in terms of chemotherapy (line of treatment, pemetrexed-based regimen, other therapies), surgery, and radiotherapy. Response to therapy, progression-free survival, and overall survival were evaluated. RESULTS: 36 and 342 patients received best supportive care and active treatment, respectively; 86 patients underwent surgery, and 26 received trimodal therapy. Disease control after first-line chemotherapy was achieved in 74.2% of patients (75.7% in patients treated with pemetrexed combined with other drugs and 69% with pemetrexed as monotherapy). The disease control rate was 82.6% in pemetrexed re-challenged individuals. Median survival time was 11.6 months with supportive care, 16.2 months with chemotherapy only, 32.4 months with surgery plus chemotherapy, and 47.2 months with trimodal therapy. A more favorable prognosis was observed in responders to first-line therapy who were then actively treated with second-line (24.8 vs. 11.8 months in non-responders, p < 0.001) and third-line chemotherapy (28.9 vs. 17.8 months in non-responders, p = 0.005). CONCLUSION: Mesothelioma patients benefited from chemotherapy alone only when retreated in the second line after response to first-line therapy.