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Abstract Introduction Desmoid tumors (DT) are rare, locally invasive tumors originating from connective tissue. Surgical intervention is no longer the standard treatment for DT, as systemic therapy gradually replaces it due to its superior efficacy. Despite the availability of various treatment modalities, there is a need for a first-line systemic treatment regimen that offers both effective disease control and acceptable safety profiles. Methods To assess the efficacy and safety of different systemic treatment agents for DT, we conducted a systematic review and network meta-analysis. Eligible studies were identified through searches of PubMed, Embase, and the Cochrane Library databases, and data were extracted according to predefined inclusion criteria. Results Three articles and clinical data from 295 patients with progressive and refractory DT were included in this Bayesian network meta-analysis. When considered by objective response rate (ORR), the efficacy of γ-secretase inhibitor versus placebo (OR 0.12, 95%CI 0.01–1.68) is superior to that of TKI (OR 0.49, 95%CI 0.03–7.62) and chemotherapy (OR 0.90, 95%CI 0.02–40.00). Vascular endothelial growth factor (VEGF)-TKI (OR, 0.09; 95% CI, 0.01–1.79) seemed to have the highest improvement in terms of 1-yr PFS rate, while chemotherapy seemed to have the highest improvement across all therapies in terms of 2-yr PFS rate across all therapies (OR, 0.06; 95 percent CI, 0.01–2.98). In terms of safety, the incidence of AEs is highest for γ-secretase inhibitor versus placebo (OR 0.16, 95%CI 0.02–1.55), while TKI is associated with the least AEs (OR 0.62, 95%CI 0.06–6.97). Conclusion γ-secretase inhibitor provides superior local control of tumors, while chemotherapy and TKI may offer better long-term survival benefits. Among the three regimens, TKI demonstrated better treatment-related safety. These findings have important implications for guiding clinical practice in systemic treatment of DT. |
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