A phase II study of extended dose temozolomide and thalidomide in previously treated patients with metastatic melanoma

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Abstract
To assess the efficacy and tolerability of extended dose temozolomide and continuous thalidomide in patients with advanced metastatic cutaneous melanoma. Eligibility criteria included adults with histologic diagnosis of metastatic melanoma with adequate organ function and performance status. Temozolomide (75 mg/m2/day) was administered for 6 weeks followed by a 2-week rest. Thalidomide (200 mg/day) was given for the first 2 weeks and increased by 100 mg/day at weekly intervals up to a maximum of 400 mg/day, if no toxicity. For patients older than 70 years, thalidomide was started at 100 mg/day and the dose was increased by 50 mg/day up to a maximum of 250 mg/day. Twenty-six extensively pretreated subjects, with poor prognostic factors, were entered into this study and included in all analyses. According to the RECIST criteria, one (4%) subject achieved a complete response (CR), two (8%) partial response (PR), and five (19%) stable disease (SD), for a response rate (CR + PR) of 12% [95% confidence interval (CI), 0–24.7%] and a clinical benefit (CR + PR + SD) of 31%. Median time to progression was 1.8 months (95% CI, 1.2–2.4 months) and median survival was 5.2 months (95% CI, 4.1–6.2 months). The combination of temozolomide and thalidomide is well tolerated in patients with very advanced heavily pretreated metastatic melanoma. It has modest activity in this population with grave prognosis.