SynthesisInternational journal of surgery (London, England)2026
Efficacy and safety of immunotherapy in anaplastic thyroid carcinoma: a systematic review and meta-analysis.
Synthesis in International journal of surgery (London, England), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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19 authors.
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Abstract
backgroundAnaplastic thyroid carcinoma (ATC) is a rare, aggressive solid tumor with poor prognosis. Traditional treatment such as surgery, radiotherapy, and chemotherapy has limited therapeutic effects. In recent years, immunotherapy is changing the treatment pattern of them. We systematically summarize the research status and application of immunotherapy in ATC to provide clinicians and relevant researchers with a comprehensive perspective.
methodA comprehensive search of the PubMed and Embase databases identified 18 studies investigating the application of immunotherapy in ATC. These included ten cohort studies and eight case reports. The quality of the included studies was assessed using the Newcastle-Ottawa Quality Assessment Scale (NOS) and Joanna Briggs Institute checklist (JBI). Subsequently, a single-proportion meta-analysis and meta-regression were performed to evaluate the efficacy of immunotherapy in ATC.
resultsThe favorable response rate to immunotherapy in ATC patients (33-100%) varies across cohorts, indicating substantial heterogeneity. The combination of immunotherapy with targeted therapy, as well as the use of neoadjuvant treatment, has led to improved outcomes for ATC. Single-proportion meta-analysis suggests that immunotherapy may provide clinical benefits for a subset of ATC patients (approximately one-third to one-half), but its effectiveness in controlling disease progression remains limited. Meta-regression further indicates that ATC patients with PD-L1 expression or BRAF V600E mutations tend to have better treatment responses. Among the 8 case reports, two patients achieved complete remission after immunotherapy, and four patients died of disease progression after immunotherapy. Mild adverse effects are common, but interstitial pneumonia is associated with poor prognosis in immunotherapy.
conclusionImmunotherapy for ATC has demonstrated safety and efficacy in several studies, especially in patients with PD-L1 expression or BRAF V600E mutations. However, immune-related side effects should be carefully managed, particularly to prevent interstitial pneumonia.
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