216 results match your criteria: "National Cancer Center Singapore[Affiliation]"

Background: In recent years, there has been growing interest in laparoscopic liver resection (LLR) and the audit of the results of surgical procedures. The aim of this study was to define reference values for LLR in segments 7 and 8.

Study Design: Data on LLR in segments 7 and 8 between January 2000 and December 2020 were collected from 19 expert centers.

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Intestinal obstruction secondary to peritoneal metastases: More harm than good with water-soluble contrast study?

Asian J Surg

July 2024

Department of Sarcoma, Peritoneal and Rare Tumors (SPRinT), Division of Surgery and Surgical Oncology, National Cancer Center Singapore, Singapore; Department of Sarcoma, Peritoneal and Rare Tumors (SPRinT), Division of Surgery and Surgical Oncology, Singapore General Hospital, Singapore; SingHealth Duke-NUS Oncology Academic Medical Program, Duke-NUS Medical School, Singapore; SingHealth Duke-NUS Surgery Academic Medical Program, Duke-NUS Medical School, Singapore; Laboratory of Applied Human Genetics, Division of Medical Sciences, National Cancer Center Singapore, Singapore; Institute of Molecular and Cell Biology, A∗STAR Research Entities, Singapore. Electronic address:

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Cholangiocarcinomas (CCA) pose a complex challenge in oncology due to diverse etiologies, necessitating tailored therapeutic approaches. This review discusses the risk factors, molecular pathology, and current therapeutic options for CCA and explores the emerging strategies encompassing targeted therapies, immunotherapy, novel compounds from natural sources, and modulation of gut microbiota. CCA are driven by an intricate landscape of genetic mutations, epigenetic dysregulation, and post-transcriptional modification, which differs based on geography (e.

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Background: KEYNOTE-522 demonstrated statistically significant improvements in pathological complete response (pCR) with neoadjuvant pembrolizumab plus chemotherapy and event-free survival (EFS) with neoadjuvant pembrolizumab plus chemotherapy followed by adjuvant pembrolizumab in patients with high-risk, early-stage triple-negative breast cancer (TNBC). Prior studies have shown the prognostic value of the residual cancer burden (RCB) index to quantify the extent of residual disease after neoadjuvant chemotherapy. In this preplanned exploratory analysis, we assessed RCB distribution and EFS within RCB categories by treatment group.

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A Systematic Scoping Review on Dignity Assessment Tools.

J Pain Symptom Manage

April 2024

Yong Loo Lin School of Medicine (Y.X.L., E.L-Y.Q., K.Z-Y.C., S.M.O., L.K.R.R), National University of Singapore, Singapore; Division of Supportive and Palliative Care (Y.X.L., E.L-Y.Q., K.Z-Y.C., C.K.L.R., S.M.O., E.K.O., G.L.K.P., L.K.R.R), National Cancer Centre Singapore, Singapore; Centre for Biomedical Ethics (C.K.L.R., L.K.R.R), National University of Singapore, Singapore; Division of Cancer Education (C.K.L.R., R.G., E.K.O., L.K.R.R.), National Cancer Centre Singapore, Singapore; Duke-NUS Medical School (E.K.O., L.K.R.R.), Singapore; Palliative Care Institute Liverpool (L.K.R.R.), Cancer Research Centre, University of Liverpool, Liverpool, United Kingdom; PalC (L.K.R.R.), The Palliative Care Centre for Excellence in Research and Education, Singapore. Electronic address:

Context: The provision of person-centered dignity-conserving care is central to palliative care. It is important to reevaluate current methods of assessing dignity as the concept of dignity is multifaceted.

Objectives: The aim of this study is to understand the tools which are used to assess a patient's dignity and the elements of dignity evaluated in these tools.

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Article Synopsis
  • The KEYNOTE-522 study found that adding pembrolizumab to neoadjuvant chemotherapy improved pathologic complete response (pCR) and event-free survival (EFS) in early triple-negative breast cancer cases compared to chemotherapy alone.
  • This analysis focused on patients from East/Southeast Asia diagnosed with early-stage, nonmetastatic triple-negative breast cancer, and involved a randomized, double-blind trial design with 1174 participants.
  • Patients received either pembrolizumab or a placebo alongside chemotherapy before surgery, with the study's main outcomes being the rates of pCR and EFS after treatment.
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Background: Radiotherapy is a common treatment for nasopharyngeal carcinoma (NPC) but can cause radiation-induced temporal lobe injury (RTLI), resulting in irreversible damage. Predicting RTLI at the early stage may help with that issue by personalized adjustment of radiation dose based on the predicted risk. Machine learning (ML) models have recently been used to predict RTLI but their predictive accuracy remains unclear because the reported concordance index (C-index) varied widely from around 0.

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Background: The upfront treatment of metastatic renal cell carcinoma (mRCC) has been revolutionized by the introduction of immune-based combinations. The role of cytoreductive nephrectomy (CN) in these patients is still debated. The ARON-1 study (NCT05287464) was designed to globally analyze real-world data of mRCC patients receiving first-line immuno-oncology combinations.

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Despite recent treatment advances, the prognosis for patients with locally recurrent inoperable or metastatic triple-negative breast cancer (TNBC) remains poor. The antibody-drug conjugate datopotamab deruxtecan (Dato-DXd) is composed of a humanized anti-TROP2 IgG1 monoclonal antibody linked to a topoisomerase I inhibitor payload via a stable, cleavable linker. The phase III TROPION-Breast02 trial in patients previously untreated for locally recurrent inoperable or metastatic TNBC, who are not candidates for PD-1/PD-L1 inhibitors is evaluating efficacy and safety of Dato-DXd versus investigator's choice of chemotherapy (ICC).

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Primary breast angiosarcoma is an extremely rare disease with a poor prognosis. Primary angiosarcoma is distinct from secondary angiosarcoma, which usually occurs in patients who have been previously treated for breast cancer. The low incidence of primary breast angiosarcoma has hindered the elucidation of its etiology and potential therapies.

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This report presents a remarkable and unusual case of extrapulmonary small cell carcinoma (EPSCC) occurring in the prostate of a 77-year-old male patient with a previous history of prostate adenocarcinoma and multiple metastases. EPSCC is a highly aggressive form of cancer that often results in unfavorable survival outcomes, posing significant challenges in terms of management due to the absence of established treatment protocols. Despite receiving standard treatment including bicalutamide and leuprorelin, the patient's condition showed no improvement.

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Negrao and colleagues showed that coalterations in three genes-KEAP1, SMARCA4, and CDKN2A- correlated to poor clinical outcomes in patients with KRASG12C-mutated non-small cell lung cancer treated with sotorasib or adagrasib. Their study highlights how pooling high-resolution real-world genomic data with clinical outcomes can potentially facilitate risk-stratified precision therapies. See related article by Negrao et al.

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Background: Animal models representing different molecular subtypes of glioblastoma multiforme (GBM) is desired for developing new therapies. SVV-001 is an oncolytic virus selectively targeting cancer cells. It's capacity of passing through the blood brain barrier makes is an attractive novel approach for GBM.

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Background & Aims: Lifestyle and environmental-related exposures are important risk factors for hepatocellular carcinoma (HCC), suggesting that epigenetic dysregulation significantly underpins HCC. We profiled 30 surgically resected tumours and the matched adjacent normal tissues to understand the aberrant epigenetic events associated with HCC.

Methods: We identified tumour differential enhancers and the associated genes by analysing H3K27 acetylation (H3K27ac) chromatin immunoprecipitation sequencing (ChIP-seq) and Hi-C/HiChIP data from the resected tumour samples of 30 patients with early-stage HCC.

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Objectives: The majority of the cancelled elective surgeries caused by the COVID-19 pandemic globally were estimated to occur in low- and middle-income countries (LMICs), where surgical services had long been in short supply even before the pandemic. Therefore, minimising disruption to existing surgical care in LMICs is of crucial importance during a pandemic. This study aimed to explore contributory factors to the continuity of surgical care in LMICs in the face of a pandemic.

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Introduction: We report herein the impact of focal therapy (FT) on multi-domain functional outcomes in a Phase II prospective clinical trial (NCT04138914) in focal cryotherapy for clinically significant prostate cancer (csPCa).

Methods: The primary outcome was the detection of a ≥5 point deterioration in any of the four main expanded prostate index composite (EPIC) functional domains. Pretreatment multiparametric magnetic resonance imaging (mpMRI) and transperineal targeted and systematic saturation biopsy were used to select patients with prostate-specific antigen (PSA)≤20 ng/mL, Gleason grade group (GG) ≤4, mpMRI lesion volume ≤ 3 mL (for a single lesion) or ≤1.

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Introduction: Sorafenib was historically the standard of care for advanced hepatocellular carcinoma (aHCC) until it was superseded by the combination of atezolizumab and bevacizumab. Thereafter, several novel first-line combination therapies have demonstrated favorable outcomes. The efficacies of these treatments in relation to current and previous standards of care are unknown, necessitating an overarching evaluation.

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Effects of induction chemotherapy on nutrition status in locally advanced nasopharyngeal carcinoma: a multicentre prospective study.

J Cachexia Sarcopenia Muscle

April 2023

Department of Nasopharyngeal Carcinoma, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, Guangdong, China.

Article Synopsis
  • This study examines the impact of induction chemotherapy (IC) and concurrent chemoradiotherapy (CCRT) on the nutritional status of patients with locoregionally advanced nasopharyngeal carcinoma (LA-NPC).
  • It involved 171 patients and assessed weight loss, body mass index, and quality of life throughout the treatment process, revealing that weight loss significantly increased during CCRT.
  • The findings indicate that a substantial proportion of patients experienced noteworthy weight loss, suggesting a higher risk of malnutrition, highlighting the need for nutritional intervention during treatment.
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Background: Following a European Society for Medical Oncology Women for Oncology (ESMO W4O) survey in 2016 showing severe under-representation of female oncologists in leadership roles, ESMO launched a series of initiatives to address obstacles to gender equity. A follow-up survey in October 2021 investigated progress achieved.

Materials And Methods: The W4O questionnaire 2021 expanded on the 2016 survey, with additional questions on the impact of ethnicity, sexual orientation and religion on career development.

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Global Epidemiology and Genetics of Hepatocellular Carcinoma.

Gastroenterology

April 2023

Cancer Genetics Service, National Cancer Centre Singapore, Singapore; Division of Medical Oncology, National Cancer Centre Singapore, Singapore; Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore; Duke-NUS Medical School Singapore, Singapore. Electronic address:

Hepatocellular carcinoma (HCC) is one of the leading cancers worldwide. Classically, HCC develops in genetically susceptible individuals who are exposed to risk factors, especially in the presence of liver cirrhosis. Significant temporal and geographic variations exist for HCC and its etiologies.

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Background: Conventional differential expression (DE) testing compares the grouped mean value of tumour samples to the grouped mean value of the normal samples, and may miss out dysregulated genes in small subgroup of patients. This is especially so for highly heterogeneous cancer like Hepatocellular Carcinoma (HCC).

Methods: Using multi-region sampled RNA-seq data of 90 patients, we performed patient-specific differential expression testing, together with the patients' matched adjacent normal samples.

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Even though the combined use of ultrasound (US) and alpha-fetoprotein (AFP) is recommended for the surveillance of hepatocellular carcinoma (HCC), the utilization of AFP has its challenges, including accuracy dependent on its cut-off levels, degree of liver necroinflammation, and etiology of liver disease. Though various studies have demonstrated the utility of protein induced by vitamin K absence II (PIVKA-II) in surveillance, treatment monitoring, and predicting recurrence, it is still not recommended as a routine biomarker test. A panel of 17 experts from Asia-Pacific, gathered to discuss and reach a consensus on the clinical usefulness and value of PIVKA-II for the surveillance and treatment monitoring of HCC, based on six predetermined statements.

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Is There a Unicorn Among the Uncommon EGFR Mutations?

J Thorac Oncol

February 2023

Division of Medical Oncology, National Cancer Center Singapore, Singapore, Singapore; Duke-NUS Medical School, Singapore, Singapore. Electronic address:

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Background: Oestrogen receptor positive, human epidermal growth factor receptor-2 (HER2) negative breast cancer (BC) is the most frequently diagnosed BC subtype. Combinations of cyclin-dependent kinase 4/6 inhibitors (CDK4/6i) with anti-oestrogen therapy have led to improved survival compared with anti-oestrogen therapy alone for advanced/metastatic BC. The evaluation of CDK4/6i in the real-world facilitates treatment planning, insights into the incidence of drug toxicities, dose modifications including dose delays (DDs) and dose reductions (DRs) and improves prognostic accuracy in subgroups, for example geriatric patients, who are under-represented in clinical trials.

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