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OBJECTIVE The aim of the study is to compare treatment outcomes of the patients with federation of gynecology and obstetrics stages III and IV ovarian carcinomas, who underwent interval debulking surgery after neoadjuvant chemotherapy (NACT), and patients who underwent adjuvant chemotherapy after primary debulking surgery (PDS). METHODS Patients from four centers (n=183) were retrospectively evaluated. Of the patients, 91 (50%) were in the PDS group and 92 (50%) in the NACT group. RESULTS In the NACT group patients have advanced age, poor performance status, high levels of CA125, and advanced disease stage compared with the PDS group (p<0.050). Of the patients receiving NACT, 14 (15%) had a complete response, and 68 (74%) had a partial response. The R0 rate was higher in the PDS group (p=0.018). In univariate analysis, poor prognostic factors affecting OS were NACT in the treatment protocol (p<0.001), poor performance status (p<0.001), advanced age (<70 vs. =70, p=0.002), advanced clinical stage (p=0.042), and localization of the tumor with the largest diameter outside the omentum and ovary at the time of diagnosis (p=0.029). In the multivariate analysis, the presence of NACT (HR: 2.30, 95% CI: 1.25-4.23, p=0.007) and poor performance (HR: 2.52, 95% CI: 1.18-5.10, p=0.017) were independent poor prognostic factors for OS. CONCLUSION In the study, OS was better in the PDS group than in the NACT group. This result was thought to be associated with the NACT group having more disadvantageous characteristics (advanced age, poor performance, high CA125 level, advanced stage, etc.). [ABSTRACT FROM AUTHOR]

Aim: We aimed to compare weekly methotrexate (MTX) regimen and methotrexate‐folinic acid (MTX‐FA) 8‐day regimen in the first line treatment of low‐risk gestational trophoblastic neoplasia (GTN). Methods: The study included 73 patients with low‐risk GTN according to FIGO risk score (FIGO risk score < 7). All patients received either weekly MTX (30–50 mg/m2 intramuscular weekly) or MTX‐FA 8‐day (MTX 1 mg/kg IV on day 1, 3, 5, and 7, FA 15 mg orally on day 2, 4, 6, and 8 given 24 h after each MTX dose, every 14 days) regimens in the first‐line treatment of low‐risk GTN. The baseline clinicopathological characteristics and treatment outcomes were analyzed retrospectively. Results: The median age of all patients was 29 (18–51) years, and the median FIGO risk score was 3 (1–6). Of the patients recruited, 53 received MTX‐FA 8‐day, and 20 had MTX weekly regimens. There was a significant difference between the two groups with respect to FIGO risk scores (3 [1–6] vs. 2 [1–5], p = 0.023, MTX‐FA 8‐day vs. MTX weekly, respectively). The complete response rate was significantly higher in MTX‐FA 8‐day group compared to MTX weekly group (83% [44/53] vs. 60% [12/20] p = 0.038). In univariate and multivariate regression analyses, only presence of lung metastasis was found to be an independent risk factor for treatment resistance (OR: 3.959, 95% CI 1.105–14.179, p = 0.035). Conclusion: MTX‐FA 8‐day regimen is more effective than weekly MTX regimen in the first line treatment of low‐risk GTN including patients even with higher FIGO risk scores. Treatment resistance may develop especially in patients with lung metastasis. [ABSTRACT FROM AUTHOR]

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In this study, 683 patients with endometrial cancer (EC) after comprehensive surgical staging were classified into four risk groups as low (LR), intermediate (IR), high-intermediate (HIR) and high-risk (HR), according to the recent consensus risk grouping. Patients with disease confined to the uterus, ≥50% myometrial invasion (MI) and/or grade 3 histology were treated with vaginal brachytherapy (VBT). Patients with stage II disease, positive/close surgical margins or extra-uterine extension were treated with external beam radiotherapy (EBRT)±VBT. The median follow-up was 56 months. The overall survival (OS) was significantly different between LR and HR groups, and there was a trend between LR and HIR groups. Relapse-free survival (RFS) was significantly different between LR and HIR, LR and HR and IR and HR groups. There was no significant difference in OS and RFS rates between the HIR and HR groups. In HR patients, the OS and RFS rates were significantly higher in stage IB - grade 3 and stage II compared to stage III and non-endometrioid histology without any difference between the two uterine-confined stages and between stage III and non-endometrioid histology. The current risk grouping does not clearly discriminate the HIR and IR groups. In patients with comprehensive surgical staging, a further risk grouping is needed to distinguish the real HR group.Impact statementWhat is already known on this subject? The standard treatment for endometrial cancer (EC) is surgery and adjuvant radiotherapy (RT) and/or chemotherapy is recommended according to risk factors. The recent European Society for Medical Oncology (ESMO), European Society of Gynaecological Oncology (ESGO) and European Society for Radiotherapy and Oncology (ESTRO) guideline have introduced a new risk group. However, the risk grouping is still quite heterogeneous.What do the results of this study add? This study demonstrated that the current risk grouping recommended by ESMO-ESGO-ESTRO does not clearly discriminate the intermediate risk (IR) and high-intermediate risk (HIR) groups.What are the implications of these findings for clinical practice and/or further research? Based on the results of this study, a new risk grouping can be made to discriminate HIR and IR groups clearly in patients with comprehensive surgical staging. [ABSTRACT FROM AUTHOR]

This study aims to analyze the clinicopathologic characteristics and treatment outcomes of our patients with gestational trophoblastic neoplasia (GTN) and to present our real-life experience. A total of 32 patients with GTN diagnosed according to the FIGO 2002 criteria followed in Zekai Tahir Burak Women's Health Training and Research Hospital between 2011-2018 were included. Demographic features, treatment outcomes, and survival were analyzed retrospectively. The median follow up time was 32.1 (3.3-76.9) months. Of the 32 patients, 27 (84.4%) were defined as low-risk GTN (risk score < 7) and 5 (15.6%) were high-risk GTN (risk score ≥ 7) according to the FIGO risk score. Seventeen (62.9%) patients with low-risk GTN achieved complete remission (CR) with single agent MTX. CR rate was 60% (12/20) in patients receiving weekly MTX and 71.4% (5/7) in MTX-FA eight-day regimen (p= 0.590). Of the 9 MTX resistant patients, 8 (88.8%) achieved CR with second-line Actinomycin D (ActD). Three (60%) out of the five high-risk GTN patients acquired CR with first-line EMA-CO (etoposide, MTX, plus ActD alternating with cyclophosphamide and vincristine). In the follow-up period one patient (3.1%) had recurrent disease. By the data cut off date, all of the patients were alive and CR could not be achieved in one (3.1%) patient. All patients with low-risk GTN achieved CR with sequential therapies ultimately. Therefore, single agent MTX is a reasonable option in the initial treatment of low-risk GTN. Moreover, Actinomycin D is highly effective in patients with low-risk GTN who are resistant to MTX. [ABSTRACT FROM AUTHOR]