Publications by authors named "Csongor G Lengyel"

Background: Medical cannabis (MC) has gained traction in oncology for managing cancer-related symptoms, but its integration faces challenges due to limited evidence, inconsistent guidelines, and varied legal frameworks.

Methods: The TASMAN study aimed to assess the knowledge, attitudes, and practices of oncologists and palliative care providers globally regarding MC use in cancer care. A survey of healthcare providers from diverse regions and income levels was conducted.

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Purpose: Open-access publishing expanded opportunities to give visibility to research results but was accompanied by the proliferation of predatory journals (PJos) that offer expedited publishing but potentially compromise the integrity of research and peer review. To our knowledge, to date, there is no comprehensive global study on the impact of PJos in the field of oncology.

Materials And Methods: A 29 question-based cross-sectional survey was developed to explore knowledge and practices of predatory publishing and analyzed using descriptive statistics and binary logistic regression.

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There is a growing global debate over barriers affecting the timely access to innovative anticancer therapies. Access to medicines is often traced back to the issue of costs: however, more commonly, the distance between valuable innovative treatments and the actual treatment of patients is far beyond the mere problem of financial barriers. A comprehensive approach to understand, assess to medicines should be pursued, to dissect the determinants and formulate solutions for all patients.

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Background And Objective: The therapeutic landscape for non-small cell lung cancer (NSCLC) has evolved considerably in the last few years. The targeted drugs and molecular diagnostics have been developed together at a fast pace. This narrative review explores the evolution of anaplastic lymphoma kinase (ALK) targeting therapies from discovering the ALK protein, molecular tests, present clinical trial data and future perspectives.

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Aim: This narrative review aims to describe colorectal cancer (CRC) management landscape in low- and middle-income countries (LMICs), presenting the most recent and relevant papers on the topic. As a secondary aim, the authors suggest new ways of improving CRC patient care in LMICs.

Background: Several studies show that the incidence of colon cancer in low- and middle-income countries (LMICs) is rising.

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Gastric cancer (GC) is the third leading cause of cancer-associated death worldwide. The majority of patients are diagnosed at an advanced/metastatic stage of disease due to a lack of specific symptoms and lack of screening programs, especially in Western countries. Thus, despite the improvement in GC therapeutic opportunities, the survival is disappointing, and the definition of the optimal treatment is still an unmet need.

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Article Synopsis
  • Fertility and pregnancy issues are crucial for young breast cancer patients, but there's limited understanding among physicians in low- and middle-income countries (LMICs) on these topics.
  • A survey of 288 physicians revealed that many had never consulted international guidelines, and a significant portion felt uninformed about fertility preservation methods like cryopreservation.
  • The results indicate a need for improved education and awareness among LMIC physicians regarding fertility preservation and pregnancy considerations for young breast cancer survivors.
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(1) Background: Liquid biopsy (LB) is a novel diagnostic method with the potential of revolutionizing the prevention, diagnosis, and treatment of several solid tumors. The present paper aims to summarize the current knowledge and explore future possibilities of LB in the management of metastatic gastric cancer. (2) Methods: This narrative review examined the most recent literature on the use of LB-based techniques in metastatic gastric cancer and the current LB-related clinical trial landscape.

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The microsatellite instable phenotype resulting from errors in DNA mismatch repair proteins accounts for as far as 15 to 20% of non-hereditary colon cancers but is scarce in rectal cancer. It has been shown that the increased existence of tumor-specific neoantigens in hypermutated tumors is correlated with higher tumor-infiltrating lymphocytes (TILs) and overexpression of immune checkpoint receptors and ligands, mainly PD-1 and PD-L1. In particular, the data gained up to now gives evidence that neoantigen recognition constitutes a dominant component in the course of immunotherapies.

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Platinum-resistant ovarian cancer (OC) has limited treatment options and is associated with a poor prognosis. There appears to be an overlap between molecular mechanisms responsible for platinum resistance and immunogenicity in OC. Immunotherapy with single agent checkpoint inhibitors has been evaluated in a few clinical trials with disappointing results.

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Article Synopsis
  • This narrative review discusses the importance of the PI3K-AKT-mTOR (PAM) pathway in ovarian and endometrial cancers, highlighting recent literature and options for targeting this pathway.
  • Alterations in the PAM pathway are commonly found in these cancers and are linked to treatment resistance, but initial clinical trials using PAM inhibitors (PAMi) have shown disappointing outcomes and safety concerns, particularly with non-specific inhibitors.
  • Encouraging results have emerged from more selective PAM inhibitors tailored to specific subtypes, but currently, there are no Phase III trials proving significant benefits; an individualized precision-medicine approach may better target treatments for patients.
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In spite of the continued expansion of non-surgical therapeutic modalities surgery still plays an important role in the treatment of head and neck cancer. Parallel with the use of conventional approaches, more sophisticated surgical approaches, like the use of laser in oncologic surgery, appeared with a more favorable outcome. Laser is a precise surgical tool, particularly when coupled to an operating microscope (with a variable spot size micromanipulator), allowing microprecision and hemostatic ability.

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