Abstract
Background. In patients with stage III melanoma carrying BRAF mutations, the risk of melanoma recurrence is relatively high even after complete resection of the primary melanoma and regional lymph nodes. Methods. We collected data from patients with stage III cutaneous and acral melanoma who received adjuvant trametinib combined with dabrafenib from three cancer centres in China between August 2019 and December 2022. Results. A total of 55 patients were included in this study. The one-year recurrence-free survival (RFS) rate was 79.8% (95% CI 73.6–86.0%). The one-year RFS rate was 79.8% (95% CI 72.8–86.8%) in the cutaneous melanoma subgroup, while the one-year RFS rate was 74.1% (95% CI 58.0–90.2%) in the acral melanoma subgroup. Six (46.2%) patients experienced recurrence during adjuvant therapy; 7 (53.9%) patients recurred after completion of the regimen. At the time of the first recurrence, distant metastasis occurred in 10 patients, local recurrence occurred in 2 patients, and one patient experienced both distant metastasis and local recurrence. Conclusions. This study confirmed the good tolerability and short-term benefits of adjuvant therapy with dabrafenib and trametinib in Chinese patients with stage III melanoma with BRAF V600 mutation.
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