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1.
Asian Pac J Cancer Prev ; 22(5): 1581-1590, 2021 May 01.
Article in English | MEDLINE | ID: mdl-34048189

ABSTRACT

BACKGROUND: We aimed to evaluate the effectiveness and tolerability of Afatinib as first-line treatment of advanced epidermal growth factor receptor (EGFR) mutant non small cell lung cancer (NSCLC) in a real-world setting. PATIENTS AND METHODS: This is a retrospective study of Vietnamese patients  with advanced EGFR-mutant NSCLC treated with first-line afatinib at the National Cancer Hospital from 1st January 2018 to 31st October 2020. Patients' demographic, clinical and treatment data were captured. Objective response rate (ORR), disease control rate (DCR), time to treatment failure (TTF) and tolerability were evaluated. We used Kaplan-Meier curve and log-rank test for survival, and Cox regression model for multivariate analysis. RESULTS: A total of 44 patients were included. Common EGFR mutations (Del 19/L858R) were detected in 61% patients. Fifty percent of patients with uncommon mutations had compound mutations of G719X, L861Q and S768I. The ORR was 75% while DCR rate was 98%. The median TTF was 12.3 months (95% CI: 7.2-17.3); the mTTFs were 12.3 and 10.8 months for patients with common and uncommon mutations (p = 0.001), respectively, and 14.0 and 7.5 months for patients with Del 19 and L858R mutations (p = 0.067), respectively. Afatinib 30 mg once daily was the most common starting (77%) and maintenance (64%) doses. The mTTFs were 12.3 and 7.5 months for patients with 30 mg starting dose vs 40 mg dose (p = 0.256), respectively. Diarrhea, skin rash, paronychia and fatigue were observed in 32%, 30%, 25% and 9%, respectively. There was no grade 4 toxicity except three patients with grade 3 paronychia. CONCLUSIONS: First-line afatinib is beneficial for Vietnamese patients with advanced EGFR-mutant NSCLC with a good response rate and prolonged TTF with manageable adverse event profile. Baseline brain metastasis status and starting doses do not significantly impact TTF.
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Subject(s)
Afatinib/therapeutic use , Antineoplastic Agents/therapeutic use , Carcinoma, Non-Small-Cell Lung/drug therapy , Lung Neoplasms/drug therapy , Mutation , Adult , Aged , Carcinoma, Non-Small-Cell Lung/genetics , Carcinoma, Non-Small-Cell Lung/pathology , ErbB Receptors/antagonists & inhibitors , ErbB Receptors/genetics , Female , Follow-Up Studies , Humans , Lung Neoplasms/genetics , Lung Neoplasms/pathology , Male , Maximum Tolerated Dose , Middle Aged , Prognosis , Retrospective Studies , Survival Rate
2.
Asian Pac J Cancer Prev ; 22(3): 853-859, 2021 Mar 01.
Article in English | MEDLINE | ID: mdl-33773550

ABSTRACT

OBJECTIVE: This study aimed to analyze the treatment outcome and toxicities, along with prognosis factors of patients with FIGO 2018 stage III cervical cancer treated with definitive concurrent chemoradiation. METHODS: A total of 83 stage III cervical cancer patients with good performance status (ECOG PS 0, 1) were treated with three-dimensional conformal radiation therapy (3D-CRT) combined with chemotherapy (weekly cisplatin), followed by high-dose-rate (HDR) brachytherapy between January 2017 and March 2019 at Vietnam National Cancer hospital. Treatment outcomes and prognosis factors were assessed along with acute and late toxicities. RESULTS: The 3-year DFS was 67.8% and 3-year OS was 80.3%. On multivariate analyses, short axis of pelvic lymph node diameter of ≥ 15mm, invasion of the lower third of vagina and para-aortic lymph node metastasis were identified as adverse prognostic factors for DFS. The cumulative incidence rate of gastrointestinal and genitourinary toxicity (≥ grade 2) at the 3-year follow-up were 29.6% and 11.6%, respectively. CONCLUSIONS: 3D CRT and HDR brachytherapy with concurrent chemotherapy is an effective treatment, with acceptable toxicity for FIGO 2018 stage III cervical cancer in Vietnam.
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Subject(s)
Adenocarcinoma/therapy , Antineoplastic Agents/therapeutic use , Brachytherapy , Carcinoma, Squamous Cell/therapy , Cisplatin/therapeutic use , Radiotherapy, Conformal , Uterine Cervical Neoplasms/therapy , Adenocarcinoma/pathology , Carcinoma, Squamous Cell/pathology , Chemoradiotherapy , Disease-Free Survival , Female , Humans , Lymph Nodes/pathology , Middle Aged , Neoplasm Recurrence, Local , Neoplasm Staging , Prognosis , Treatment Outcome , Tumor Burden , Uterine Cervical Neoplasms/pathology , Vietnam
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