國家衛生研究院 NHRI:Item 3990099045/12711
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    題名: Phase I study of bintrafusp alfa, a bifunctional fusion protein targeting TGF-beta and PD-L1, in patients with pretreated biliary tract cancer
    其他題名: Phase I study of bintrafusp alfa, a bifunctional fusion protein targeting TGF-β and PD-L1, in patients with pretreated biliary tract cancer
    作者: Yoo, C;Oh, DY;Choi, HJ;Kudo, M;Ueno, M;Kondo, S;Chen, LT;Osada, M;Helwig, C;Dussault, I;Ikeda, M
    貢獻者: National Institute of Cancer Research
    摘要: BACKGROUND: Patients with biliary tract cancer (BTC) have poor prognosis with few treatment options. Bintrafusp alfa, a first-in-class bifunctional fusion protein composed of the extracellular domain of the transforming growth factor (TGF)-βRII receptor (a TGF-β 'trap') fused to a human IgG1 antibody blocking programmed death ligand 1 (PD-L1), has shown clinical efficacy in multiple solid tumors. METHODS: In this phase I, open-label trial expansion cohort, Asian patients with BTC whose disease progressed after first-line chemotherapy received bintrafusp alfa 1200 mg every 2 weeks until disease progression, unacceptable toxicity, or withdrawal. The primary endpoint is safety/tolerability, while the secondary endpoints include best overall response per Response Evaluation Criteria in Solid Tumors version 1.1. RESULTS: As of August 24, 2018, 30 patients have received bintrafusp alfa for a median of 8.9 (IQR 5.7-32.1) weeks; 3 patients remained on treatment for >59.7 weeks. Nineteen (63%) patients experienced treatment-related adverse events (TRAEs), most commonly rash (17%), maculopapular rash and fever (13% each), and increased lipase (10%). Eleven (37%) patients had grade ≥3 TRAEs; three patients had grade 5 events (septic shock due to bacteremia, n=1; interstitial lung disease (reported term: interstitial pneumonitis), n=2). The objective response rate was 20% (95% CI 8 to 39) per independent review committee (IRC), with five of six responses ongoing (12.5+ to 14.5+ months) at data cut-off. Two additional patients with durable stable disease had a partial response per investigator. Median progression-free survival assessed by IRC and overall survival were 2.5 months (95% CI 1.3 to 5.6) and 12.7 months (95% CI 6.7 to 15.7), respectively. Clinical activity was observed irrespective of PD-L1 expression and microsatellite instability-high status. CONCLUSIONS: Bintrafusp alfa had clinical activity in Asian patients with pretreated BTC, with durable responses. Based on these results, bintrafusp alfa is under further investigation in patients with BTC (NCT03833661 and NCT04066491). TRIAL REGISTRATION NUMBER: NCT02699515.
    日期: 2020-05
    關聯: Journal for ImmunoTherapy of Cancer. 2020 May;8(1):Article number e00056.
    Link to: http://dx.doi.org/10.1136/jitc-2020-000564
    JIF/Ranking 2023: http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=NHRI&SrcApp=NHRI_IR&KeyISSN=2051-1426&DestApp=IC2JCR
    Cited Times(WOS): https://www.webofscience.com/wos/woscc/full-record/WOS:000562109500014
    Cited Times(Scopus): https://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85085538626
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