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Real-world treatment patterns and clinical outcomes among patients with advanced melanoma: A retrospective, community oncology-based cohort study (A STROBE-compliant article).

Cowey, C Lance; Liu, Frank Xiaoqing; Boyd, Marley; Aguilar, Kathleen M; Krepler, Clemens.
Medicine (Baltimore); 98(28): e16328, 2019 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-31305421
Recently, the effectiveness of novel immune checkpoint inhibitors and BRAF-directed therapies has been demonstrated in advanced melanoma trial populations. Limited research, however, has evaluated the impact of these therapies in a real-world setting. The aim of this study was to evaluate treatment patterns and clinical outcomes among advanced melanoma patients treated with modern therapies within community oncology clinics. Adult patients with advanced melanoma who initiated treatment within the US Oncology Network between 1/1/14 and 12/31/16 were included. Data were sourced from electronic healthcare records. Patients were followed through 12/31/17. Descriptive analyses were performed to assess patient and treatment characteristics and Kaplan-Meier methods were used for time-to-event outcomes. In total, 484 patients met eligibility criteria (32.0% with brain metastasis, 12.6% with Eastern Cooperative Oncology Group performance status ≥2). In the first-line (1L) setting during the study period, 37.0% received anti-PD1 monotherapies, 26.4% ipilimumab monotherapy, 19.8% BRAF/MEK combination therapy, 6.4% BRAF or MEK monotherapy, 4.1% ipilimumab/nivolumab combination therapy and 6.2% other regimens. Differences in baseline demographic and clinical characteristics were observed across treatment groups. For the overall study population, the median (95% confidence interval) estimates for overall survival, time to next treatment and progression-free survival were 20.7 (16.0, 26.8), 5.8 (5.3, 6.5), and 4.9 (4.2, 5.7) months, respectively. The results of this study provide real-world insight into advanced melanoma treatment trends and clinical outcomes, including high utilization of immunotherapies and BRAF/MEK combination therapy. Future research can explore underlying differences in patient subpopulations and the sequence of therapies across lines of therapy.
Selo DaSilva