AI Article Synopsis

  • This study investigates the long-term effects of adjuvant therapy on different melanoma subtypes, particularly focusing on acral and mucosal types, using anti-PD-1 antibody and a combination of BRAF and MEK inhibitors.
  • A total of 120 patients were analyzed, revealing a median time to relapse of 18.4 months, with acral and mucosal types having 3-year recurrence-free survival rates of 28.1% and 38.5%, respectively.
  • Results indicate that adjuvant therapy is more effective for non-acral cutaneous melanoma compared to acral and mucosal types, especially regarding time to relapse.

Article Abstract

Background: Adjuvant therapy has improved the clinical prognosis for postoperative melanoma patients. However, the long-term efficacy of this therapy on the melanoma acral and mucosal subtypes has not been fully evaluated in previous trials. This study assessed the 3-year recurrence-free survival and overall survival of patients with melanoma, including the acral and mucosal subtypes, treated with anti-PD-1 antibody (Ab) or with the combination of the BRAF and MEK inhibitors dabrafenib and trametinib.

Methods: We retrospectively analyzed both the 3-year time to relapse (TTR) and overall survival (OS) of 120 patients treated with anti-PD-1 antibody (Ab), or with the combination of dabrafenib and trametinib.

Results: The overall median TTR was 18.4 months, with a range of 0.69 to 36 months. The 3-year TTR of the acral and mucosal types was 28.1% and 38.5%, respectively. Baseline tumor thickness (TT) and acral type were associated with the TTR in subgroup analysis. Moreover, we classified 104 acral and non-acral cutaneous patients into the anti-PD-1 Abs or dabrafenib plus trametinib combined therapies cohort in multiple analyses. The acral subtype and TT were detected as important prognostic factors. In the 3-year OS, only tumor ulceration was associated with the OS in both univariate and multiple analyses. There was no significant difference in baseline or treatment-related factors of the mucosal type ( > 0.05).

Conclusion: This study suggests that adjuvant therapy is more effective with non-acral cutaneous melanoma than either the acral or mucosal types at the 3-year TTR endpoint.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11311258PMC
http://dx.doi.org/10.3390/cancers16152755DOI Listing

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Article Synopsis
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  • - The findings suggest a lower tumor mutational burden in East Asian cutaneous melanoma, potentially impacting the effectiveness of immune checkpoint inhibitors and emphasizing the necessity for personalized treatment strategies based on
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