George Pentheroudakis

Prof. Dr. George Pentheroudakis

Department of Medical Oncology, University General Hospital of Ioannina, 45500 Ioannina, Greece

Research Focus & Metrics

Academic Career Length

21Years (2006-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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3 February 2024 in ESMO Open
Verified
Journal Article
Open access
KSKohei Shitara
Kohei Shitara
TFTania Fleitas
Tania Fleitas
HKH. Kawakami
H. Kawakami
GCGiuseppe Curigliano
Giuseppe Curigliano
YNYukiya Narita
Yukiya Narita
ESE. Smyth
E. Smyth
The European Society for Medical Oncology (ESMO) Clinical Practice Guidelines for the diagnosis, treatment and follow-up of patients with gastric cancer (GC), published in late 2022 and the updated ESMO Gastric Cancer Living Guideline published in July 2023, were adapted in August 2023, according to previously established standard methodology, to produce the Pan-Asian adapted (PAGA) ESMO consensus guidelines for the management of Asian patients with GC. The adapted guidelines presented in this manuscript represent the consensus opinions reached by a panel of Asian experts in the treatment of patients with GC representing the oncological societies of China (CSCO), Indonesia (ISHMO), India (ISMPO), Japan (JSMO), Korea (KSMO), Malaysia (MOS), the Philippines (PSMO), Singapore (SSO), Taiwan (TOS) and Thailand (TSCO), coordinated by ESMO and the Japanese Society of Medical Oncology (JSMO). The voting was based on scientific evidence and was independent of the current treatment practices, drug access restrictions and reimbursement decisions in the different Asian regions represented by the 10 oncological societies. The latter are discussed separately in the manuscript. The aim is to provide guidance for the optimisation and harmonisation of the management of patients with GC across the different regions of Asia, drawing on the evidence provided by both Western and Asian trials, whilst respecting the differences in screening practices, molecular profiling and age and stage at presentation. Attention is drawn to the disparity in the drug approvals and reimbursement strategies, between the different regions of Asia.

22 September 2009 in Breast Cancer Research and Treatment
Verified
Journal Article
Closed access
PDF file
George PentheroudakisGeorge Pentheroudakis
George Pentheroudakis
GLGeorge Lazaridis
George Lazaridis
NPNicholas Pavlidis
Nicholas Pavlidis

2 February 2013 in BMC Cancer
Verified
Journal Article
Open access
PDF file
George PentheroudakisGeorge Pentheroudakis
George Pentheroudakis
VKVassiliki Kotoula
Vassiliki Kotoula
WRWendy De Roock
Wendy De Roock
GKGeorge Kouvatseas
George Kouvatseas
PPPavlos Papakostas
Pavlos Papakostas
George FountzilasGeorge Fountzilas
George Fountzilas
More than half of patients with KRAS-wild type advanced colorectal cancer (CRC) fail anti-EGFR monoclonal antibodies. We studied EGFR-axis messenger RNA (mRNA) expression and RAS, RAF, PIK3CA mutations in order to identify additional biomarkers of cetuximab efficacy.

15 April 2024 in ESMO Open
Verified
Journal Article
Open access
PCP.M. Carrera
P.M. Carrera
GCGiuseppe Curigliano
Giuseppe Curigliano
DSD. Santini
D. Santini
LSLinda Sharp
Linda Sharp
RCRaymond J. Chan
Raymond J. Chan
CRC.I. Ripamonti
C.I. Ripamonti
Financial toxicity, defined as both the objective financial burden and subjective financial distress from a cancer diagnosis and its treatment, is a topic of interest in the assessment of the quality of life of patients with cancer and their families. Current evidence implicates financial toxicity in psychosocial, economic and other harms, leading to suboptimal cancer outcomes along the entire trajectory of diagnosis, treatment, supportive care, survivorship and palliation. This paper presents the results of a virtual consensus, based on the evidence base to date, on the screening and management of financial toxicity in patients with and beyond cancer organized by the European Society for Medical Oncology (ESMO) in 2022. A Delphi panel of 19 experts from 11 countries was convened taking into account multidisciplinarity, diversity in health system contexts and research relevance. The international panel of experts was divided into four working groups (WGs) to address questions relating to distinct thematic areas: patients with cancer at risk of financial toxicity; management of financial toxicity during the initial phase of treatment at the hospital/ambulatory settings; financial toxicity during the continuing phase and at end of life; and financial risk protection for survivors of cancer, and in cancer recurrence. After comprehensively reviewing the literature, statements were developed by the WGs and then presented to the entire panel for further discussion and amendment, and voting. A total of 25 evidence-informed consensus statements were developed, which answer 13 questions on financial toxicity. They cover evidence summaries, practice recommendations/guiding statements and policy recommendations relevant across health systems. These consensus statements aim to provide a more comprehensive understanding of financial toxicity and guide clinicians globally in mitigating its impact, emphasizing the importance of further research, best practices and guidelines.

25 August 2024 in Annals of Oncology
Verified
Journal Article
Open access
CWC.B. Westphalen
C.B. Westphalen
DMD. Martins-Branco
D. Martins-Branco
JBJuliana Rodrigues Beal
Juliana Rodrigues Beal
CCC. Cardone
C. Cardone
NCN. Coleman
N. Coleman
VSVivek Subbiah
Vivek Subbiah
Advances in precision oncology led to approval of tumour-agnostic molecularly guided treatment options (MGTOs). The minimum requirements for claiming tumour-agnostic potential remain elusive. The European Society for Medical Oncology (ESMO) Precision Medicine Working Group (PMWG) coordinated a project to optimise tumour-agnostic drug development. International experts examined and summarised the publicly available data used for regulatory assessment of the tumour-agnostic indications approved by the US Food and Drug Administration and/or the European Medicines Agency as of December 2023. Different scenarios of minimum objective response rate (ORR), number of tumour types investigated, and number of evaluable patients per tumour type were assessed for developing a screening tool for tumour-agnostic potential. This tool was tested using the tumour-agnostic indications approved during the first half of 2024. A taxonomy for MGTOs and a framework for tumour-agnostic drug development were conceptualised. Each tumour-agnostic indication had data establishing objective response in at least one out of five patients (ORR ≥ 20%) in two-thirds (≥4) of the investigated tumour types, with at least five evaluable patients in each tumour type. These minimum requirements were met by tested indications and may serve as a screening tool for tumour-agnostic potential, requiring further validation. We propose a conceptual taxonomy classifying MGTOs based on the therapeutic effect obtained by targeting a driver molecular aberration across tumours and its modulation by tumour-specific biology: tumour-agnostic, tumour-modulated, or tumour-restricted. The presence of biology-informed mechanistic rationale, early regulatory advice, and adequate trial design demonstrating signs of biology-driven tumour-agnostic activity, followed by confirmatory evidence, should be the principles for tumour-agnostic drug development. The ESMO Tumour-Agnostic Classifier (ETAC) focuses on the interplay of targeted driver molecular aberration and tumour-specific biology modulating the therapeutic effect of MGTOs. We propose minimum requirements to screen for tumour-agnostic potential (ETAC-S) as part of tumour-agnostic drug development. Definition of ETAC cut-offs is warranted.

29 June 2012 in BMC Cancer
Verified
Journal Article
Open access
PDF file
DPDimitrios Pectasides
Dimitrios Pectasides
GPGeorge Papaxoinis
George Papaxoinis
KKKonstantine T Kalogeras
Konstantine T Kalogeras
AEAnastasia G Eleftheraki
Anastasia G Eleftheraki
IXIoannis Xanthakis
Ioannis Xanthakis
George FountzilasGeorge Fountzilas
George Fountzilas
The aim was to compare two standard chemotherapy regimens combined with bevacizumab as first-line treatment in patients with metastatic colorectal cancer.