Publications by authors named "Paydas S"

Article Synopsis
  • The study examines the role of Her2 status in early stage triple negative breast cancer (TNBC) patients undergoing neoadjuvant chemotherapy, revealing conflicting results regarding its prognostic impact.
  • A total of 620 female TNBC patients were analyzed, with 68.9% having Her2-0 and 31.1% having Her2-low status; the rates of pathological complete response (pCR) were similar between these groups.
  • While the Her2-0 group showed better disease-free survival (DFS), the overall survival (OS) rates were similar between the two groups, indicating the need for further research into the implications of Her2 status in this treatment context.
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Predictive prognostic scoring (PS) systems are not primarily applicable to elderly patients with classical Hodgkin lymphoma (cHL). The objective of this study was to develop a PS system for these patients. The derivation cohort (DC) was utilized for model development, consisting of 97 variables.

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Soft tissue sarcomas are rare cancers and most cases are metastatic at the time of diagnosis. Although the chances of survival are good with surgical treatment in the early stages, systemic treatment in the advanced stages is only associated with a survival duration of ~12 months. Alterations in the anaplastic lymphoma kinase (ALK) gene are becoming increasingly recognized as pan-cancer indicators in solid tumors.

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Article Synopsis
  • Latent tuberculosis infection (LTBI) screening is essential for solid organ transplant (SOT) recipients, but many centers in Turkey are not adequately performing these screenings.
  • In a study involving 766 SOT patients, 46.9% tested positive for LTBI, but only about half of those treated were registered, and there was a low completion rate of treatment.
  • The findings highlight the need for better TB risk assessment and adherence to national guidelines to improve pre-transplant care for SOT recipients in Turkey.
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Objective: To evaluate the efficacy and safety of nivolumab in the second-line (2L) or later-line (LL) treatment of patients with locally advanced/metastatic non-small cell lung cancer (NSCLC) in real-life setting in Türkiye.

Methods: This study was designed as a national, multi-center, retrospective study. The study population was evaluated in two groups for the line of nivolumab therapy: those receiving nivolumab in the 2L (Group 2L) and third-line (3L) or LL (Group 3L/LL).

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To evaluate radiological and clinical features in metastatic anaplastic lymphoma kinase+ non-small cell lung cancer patients and crizotinib efficacy in different lines. This national, non-interventional, multicenter, retrospective archive screening study evaluated demographic, clinical, and radiological imaging features, and treatment approaches in patients treated between 2013-2017. Totally 367 patients (54.

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Introduction: Adrenocortical carcinoma (ACC) is a rare yet highly malignant tumor associated with significant morbidity and mortality. This study aims to delineate the clinical features, survival patterns, and treatment modalities of ACC, providing insights into the disease's prognosis.

Materials And Methods: A retrospective analysis of 157 ACC patients was performed to assess treatment methodologies, demographic patterns, pathological and clinical attributes, and laboratory results.

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Background: To evaluate the relationship of overall survival (OS) and progression-free survival (PFS) with the derived neutrophil-lymphocyte ratio (dNLR), neutrophil-lymphocyte ratio (NLR), lymphocyte-monocyte ratio (LMR), and platelet-lymphocyte ratio (PLR) in patients with epidermal growth factor receptor (EGFR)-mutant non-small cell lung cancer (NSCLC).

Methods: The study included 43 patients with EGFR-mutant metastatic NSCLC. The dNLR, NLR, LMR, and PLR values were calculated using the baseline complete blood counts before and after treatment with erlotinib.

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Objective: Primary debulking surgery has been the preferred surgical route and is still considered a quality indicator for advanced ovarian cancer surgery. However, a significant number of patients are not amenable to upfront surgery. Neoadjuvant chemotherapy and interval debulking surgery may be the most suitable approach for this group.

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Lung cancer is a common malignancy that has usually already metastasized at the time of diagnosis; however, thyroid metastases are extremely rare. Echinoderm microtubule-associated protein-like 4-anaplastic lymphoma kinase (ALK) fusion has been observed in 3-7% of cases of lung adenocarcinoma. ALK inhibitor therapy has been shown to exert a positive effect on disease progression.

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Introduction: This study aims to report the efficacy and safety of capecitabine plus temozolomide (CAPTEM) across different lines of treatment in patients with metastatic neuroendocrine tumors (NETs).

Methods: We conducted a multicenter retrospective study analyzing the data of 308 patients with metastatic NETs treated with CAPTEM between 2010 and 2022 in 34 different hospitals across various regions of Turkey.

Results: The median follow-up time was 41.

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Patients with metastatic ovarian cancer who develop resistance to standard therapy with or without platinum need to search for other therapeutic choices. Therefore, identifying genetic alterations and selecting an approach to treatment using precision medicine techniques are important. In a patient diagnosed with mixed-type ovarian cancer after surgery, adjuvant therapy was applied with a combination of carboplatin and taxane, but the disease recurred.

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Objective: In this retrospective study, we compared the effectiveness and reliability of the third-line chemotherapies gemcitabine and liposomal doxorubicin, in patients with platinum-sensitive ovarian cancer (OC).

Patients And Methods: The retrospective study included platinum-sensitive epithelial ovarian cancer patients who had previously received paclitaxel and carboplatin therapy. Between 2013-2021, cross-matched 45 patients who received gemcitabine and 48 who received liposomal doxorubicin as third-line therapy were compared based on clinicopathological characteristics, biomarkers, and blood cancer antigen (CA) 125 levels.

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Introduction: Vinorelbine, a semi-synthetic vinca alkaloid with anticancer activity by binding to tubulin, has shown to be successful in the treatment of cancer types including advanced non-small cell lung cancer, uterine cancer, and metastatic breast cancer. Myelosuppression, hematological effects, nausea, vomiting, exhaustion, and neuropathy are some of the most typical side effects of vinorelbine. We discuss the unusual presentation of vinorelbine-induced tetraplegia in a breast cancer patient.

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Introduction: In the adjuvant treatment of low-risk stage III colon cancer treated surgically, 3 months of CAPOX followed by 3 months of capecitabine is not a common clinical practice. Since there are no data on this practice in the literature, we have no idea how often it is used. However, it should be noted that this application is used in some centers due to the cumulative neurotoxicity of oxaliplatin but there are insufficient data in the literature on its efficacy.

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Objective: As cyclin-dependent kinase 4/6 (CDK 4/6) inhibitors, which play a crucial role in the cell cycle, palbociclib and ribociclib are two novel drugs that are recently being used in the treatment of breast cancer. Despite targeting the same pathway, these agents have different molecular activities and processes. KI-67 is known to play a significant role in cell proliferation that has been related to prognosis.

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Objective/aim: C-reactive protein to albumin ratio (CAR) has recently been recognized as an independent prognostic marker for vasculitides. This study aims to investigate CAR and its relationship with disease activity and damage in prevalent ANCA associated vasculitis (AAV) patients.

Methods: Fifty-one patients with AAV and 42 age-sex-matched healthy controls were enrolled in this cross-sectional study.

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Article Synopsis
  • This study looked at patients in Turkey with a type of cancer called primary mediastinal B-cell lymphoma (PMBL) to see how well different treatments work.
  • They checked 61 patients and found that many responded well to treatments like R-CHOP and DA-EPOCH-R, with a 77% overall response rate.
  • The results also showed that most patients lived for about 25 months after treatment, with good outcomes even 5 years later, making these treatments some of the best options available.
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Ribociclib, palbociclib and abemaciclib are currently approved CDK4/6 inhibitors along with aromatase inhibitors as the first-line standard-of-care for patients with hormone receptor-positive, HER2-negative metastatic breast cancer. The authors report retrospective real-life data for 600 patients with estrogen receptor- and/or progesterone receptor-positive and HER2-negative metastatic breast cancer who were treated with ribociclib and palbociclib in combination with letrozole. The results demonstrated that the combination of palbociclib or ribociclib with letrozole has similar progression-free survival and overall survival benefit in real life for the patient group with similar clinical features.

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Objectives: Kidney transplant recipients are at increased risk for avascular necrosis due to steroid use and accompanying comorbidities. Concerning risk factors, uncertainty still exists. We evaluated the clinical characteristics and risk factors of avascular necrosis in kidney transplant recipients.

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Aim: Description of patient characteristics, effectiveness and safety in Turkish patients treated with pazopanib for metastatic soft tissue sarcoma (STS).

Patients And Methods: This multicenter study is based on retrospective review of hospital medical records of patients (≥ 18 years) treated with pazopanib for non-adipocytic metastatic STS at 37 Oncology clinics across Turkey. Objective response rate (ORR), disease control rate (DCR), progression-free survival (PFS) and overall survival (OS) were evaluated with further analysis of data on the three most common histological subtypes (leiomyosarcoma [LMS], undifferentiated pleomorphic sarcoma [UPS], synovial sarcoma [SS]) in the cohort.

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Introduction: Gemcitabine is a well-tolerated pyrimidine antimetabolite chemotherapeutic that is increasingly utilized to treat non-small cell lung carcinoma, breast, pancreatic, and urogenital cancers. Myelosuppression is a common side effect and skin rashes can be observed. We discuss a case of the exceedingly rare DRESS syndrome, which appeared following Gemcitabine treatment.

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Gestational trophoblastic neoplasias (GTNs) are chemosensitive disorders with very high cure rates. However, individuals with chemoresistant diseases pass away as a result of their illness, necessitating the use of innovative medications. Immune checkpoint inhibitors (ICIs) are a critical component of the strategy for the management of drug-resistant GTD due to the high rate of PD-1 expression and the paternal genetic inheritance in GTNs.

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