期刊
EUROPEAN JOURNAL OF CANCER
卷 174, 期 -, 页码 31-36出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ejca.2022.07.009
关键词
Thymic epitelial tumours; Sunitinib; Thymoma; Thymic carcinoma
类别
Continuous daily dosing (CDD) sunitinib showed significant antitumor activity and a manageable toxicity profile in platinum-resistant thymic epithelial tumors (TETs) patients. This study provides evidence for considering CDD sunitinib as a potential treatment option for TETs.
Background: Thymic epithelial tumors (TETs) are rare diseases, with diverse clin-ical behaviour and prognosis. Intermittent dosing sunitinib represents the gold-standard sys-temic treatment following platinum-based chemotherapy. To ensure more homogeneous drug exposure, continuous daily dosing (CDD) sunitinib is utilised in other malignancies; however, no data exist in patients with TETs.Methods: We retrospectively examined data from patients with platinum-resistant TETs receiving CDD sunitinib 37.5 mg between 1 May 2017 and 31 May 2022 within the Italian collaborative group for ThYmic MalignanciEs. Primary end-points were median progres-sion-free survival, overall response rate (ORR), median duration of response and major treat-ment-related adverse events.Results: A total of 20 consecutive patients (12 thymic carcinoma [TC], 6 B3, and 2 B2 thymo-ma) were evaluated. Among the 19 patients evaluable for response, ORR was 31.6% (95% CI, 12.5%-56.5%). Among patients with TC, one complete response, four partial responses, and four stable diseases were observed (ORR 41%).The overall median progression-free survival was 7.3 months (95% CI, 4.5-10.3): 7.3 months (95% CI, 4.4-NA) within patients with thy-moma and 6.8 months (95% CI, 2.8-10.3) in patients with TC; median duration of response was 10.3 months (95% CI, 2.8-NA). CDD was associated with a manageable toxicity profile. Six patients (30%) experienced >G2 toxicity, nine required dose reduction and three discon-tinued treatment due to adverse events.Conclusions: CDD sunitinib showed a relevant antitumor activity and confirmed a good toxicity profile. Similar effectiveness and a better toxicity profile as compared with intermittent dosing historical data suggest that this schedule should be considered.
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