Bryant Morocho, Sasha Lightfoot, Ponnandai Somasundar, Steve Kwon
{"title":"Refining adjuvant therapy options in patients with stage II melanoma.","authors":"Bryant Morocho, Sasha Lightfoot, Ponnandai Somasundar, Steve Kwon","doi":"10.1080/1750743X.2026.2688694","DOIUrl":null,"url":null,"abstract":"<p><strong>Aims: </strong>Patients with stage II melanoma have multiple adjuvant therapy options in national guidelines. We evaluated management strategies to better define treatment in this heterogeneous population.</p><p><strong>Methods: </strong>Using the National Cancer Database (2010-2021), we identified patients with pathological stage IIA-IIC cutaneous melanoma who underwent surgical resection. Adjuvant treatment categories included no additional therapy (i.e. surgery only), immunotherapy, radiation, and immunotherapy plus radiation. Multivariable Cox proportional models evaluated overall survival by T-stage groups: T2b/T3a, T3b/T4a, and T4b and margin status (negative vs. positive).</p><p><strong>Results: </strong>54,848 patients were identified (T2b/T3a <i>n</i> = 26,916; T3b/T4a <i>n</i> = 18,547; T4b <i>n</i> = 9,385). With negative margins, adjuvant therapy did not improve survival in T2b/T3a patients. Adjuvant immunotherapy in the negative margin cohort improved survival in T3b/T4a (HR 0.52, 95% CI: 0.44-0.62) and T4b (HR 0.54, 95% CI: 0.47-0.62) melanoma. Among patients with positive margins, no benefit was observed with adjuvant therapy of any modality among all T-stage group cohorts.</p><p><strong>Conclusion: </strong>The impact of adjuvant treatment on overall survival in stage II melanoma depended on T-stage and margin status. Patients with low-risk disease had no survival benefit, while those with high-risk melanoma, T3b/T4a and T4b, benefited from adjuvant immunotherapy after R0 resection.</p>","PeriodicalId":13328,"journal":{"name":"Immunotherapy","volume":" ","pages":"527-535"},"PeriodicalIF":2.3000,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13348935/pdf/","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Immunotherapy","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1080/1750743X.2026.2688694","RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2026/6/12 0:00:00","PubModel":"Epub","JCR":"Q3","JCRName":"IMMUNOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
Aims: Patients with stage II melanoma have multiple adjuvant therapy options in national guidelines. We evaluated management strategies to better define treatment in this heterogeneous population.
Methods: Using the National Cancer Database (2010-2021), we identified patients with pathological stage IIA-IIC cutaneous melanoma who underwent surgical resection. Adjuvant treatment categories included no additional therapy (i.e. surgery only), immunotherapy, radiation, and immunotherapy plus radiation. Multivariable Cox proportional models evaluated overall survival by T-stage groups: T2b/T3a, T3b/T4a, and T4b and margin status (negative vs. positive).
Results: 54,848 patients were identified (T2b/T3a n = 26,916; T3b/T4a n = 18,547; T4b n = 9,385). With negative margins, adjuvant therapy did not improve survival in T2b/T3a patients. Adjuvant immunotherapy in the negative margin cohort improved survival in T3b/T4a (HR 0.52, 95% CI: 0.44-0.62) and T4b (HR 0.54, 95% CI: 0.47-0.62) melanoma. Among patients with positive margins, no benefit was observed with adjuvant therapy of any modality among all T-stage group cohorts.
Conclusion: The impact of adjuvant treatment on overall survival in stage II melanoma depended on T-stage and margin status. Patients with low-risk disease had no survival benefit, while those with high-risk melanoma, T3b/T4a and T4b, benefited from adjuvant immunotherapy after R0 resection.
期刊介绍:
Many aspects of the immune system and mechanisms of immunomodulatory therapies remain to be elucidated in order to exploit fully the emerging opportunities. Those involved in the research and clinical applications of immunotherapy are challenged by the huge and intricate volumes of knowledge arising from this fast-evolving field. The journal Immunotherapy offers the scientific community an interdisciplinary forum, providing them with information on the most recent advances of various aspects of immunotherapies, in a concise format to aid navigation of this complex field.
Immunotherapy delivers essential information in concise, at-a-glance article formats. Key advances in the field are reported and analyzed by international experts, providing an authoritative but accessible forum for this vitally important area of research. Unsolicited article proposals are welcomed and authors are required to comply fully with the journal''s Disclosure & Conflict of Interest Policy as well as major publishing guidelines, including ICMJE and GPP3.