Publications by authors named "Dechaphunkul A"

Purpose: The incidence and survival rates of head and neck squamous cell carcinoma (HNSCC) and nasopharyngeal carcinoma (NPC) vary globally, influenced by factors such as ethnicity, lifestyle, and health care systems.

Methods: A retrospective analysis was conducted on patients with HNSCC treated between 2008 and 2020 in four major Thai academic cancer centers, using a multidisciplinary multicenter database. The study focused on the evolution of patient characteristics, survival changes, and treatment landscape alterations over time.

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: In advanced-stage esophageal squamous cell carcinoma (ESCC), treatment of both the primary tumor and metastatic sites is imperatively required. Consequently, an optimal treatment modality should effectively control both aspects. Therefore, the benefits of concurrent chemoradiotherapy (CCRT) in cases of advanced-stage ESCC should be evaluated.

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Background: The current standard first-line treatment for hormone receptor-positive/human epidermal growth factor receptor 2 negative (HR + /HER2 -) advanced breast cancer (ABC) is a combination of aromatase inhibitor (AI) plus CDK4/6 inhibitors (CDK4/6i). Direct comparison trials of different CDK4/6i are scarce. This real-world study compared the effectiveness of first-line AI plus ribociclib versus palbociclib.

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  • Orbital metastasis from hepatocellular carcinoma (HCC) is uncommon and often presents without prior liver disease history.
  • A case study of a 65-year-old man revealed blurred vision and proptosis as initial symptoms, leading to the diagnosis of metastatic HCC via biopsy and imaging.
  • Treatment with dual immunotherapy (durvalumab and tremelimumab) combined with palliative radiotherapy showed significant clinical improvement and reduced symptoms, highlighting the need for proactive diagnosis and treatment options for this rare condition.
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  • The study evaluates the effectiveness of a survival nomogram and the albumin-bilirubin (ALBI) grade in predicting survival for advanced hepatocellular carcinoma patients treated with FOLFOX4 chemotherapy.
  • The survival nomogram placed patients into risk groups but did not show significant survival differentiation, while the ALBI grade effectively categorized patients and demonstrated better survival outcomes based on grade levels.
  • The findings suggest that the ALBI grade may serve as a useful prognostic tool, but further research with more patients is needed to confirm the efficacy of both tools.
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: Although cisplatin plus 5-fluorouracil (5-FU) is the standard first-line treatment for advanced-stage esophageal squamous cell carcinoma (ESCC), carboplatin was substituted for cisplatin in cisplatin-ineligible patients. The efficacy of carboplatin plus 5-FU for advanced-stage ESCC remains unreported. : This retrospective study analyzed first-line treatment-carboplatin plus 5-FU, cisplatin plus 5-FU, or best supportive care (BSC)-in advanced-stage ESCC patients at a tertiary hospital in Thailand (2012-2022).

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  • Osimertinib targets and inhibits the epidermal growth factor receptor (EGFR) in cancer cells, leading to cell death and reduced tumors, making it a key treatment for EGFR-mutated non-small cell lung cancer (NSCLC).
  • The ADAURA study compared the effects of osimertinib to a placebo in patients with surgically removed early-stage (IB-IIIA) EGFR-mutated NSCLC, showing that those on osimertinib had longer disease-free survival.
  • Recent results reveal that osimertinib significantly improves overall survival, with a 51% lower risk of death for patients treated with it compared to the placebo group.
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Background: No widely used prognostic tool exists to demonstrate the benefit of oxaliplatin plus 5-fluorouracil/leucovorin (FOLFOX4) in patients with advanced hepatocellular carcinoma (HCC). We aimed to establish a prognostic score and demonstrate the real-world efficacy of FOLFOX4 chemotherapy in Thai patients.

Methods: Between August 2017 and December 2021, we identified 58 FOLFOX4-treated patients with HCC.

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Background: Persistent high-risk human papillomavirus (HPV) infection is one of the major etiologies of oropharyngeal squamous cell carcinoma (OPSCC). This study aimed to determine the proportion, temporal trend, and prognostic significance of HPV-related OPSCC in Thai patients.

Methods: The study included patients with OPSCC who were treated at Songklanagarind Hospital (Songkhla, Southern Thailand) from 2009 to 2020.

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Background: Programmed cell death receptor-1 (PD-1)-blocking antibodies are approved to treat metastatic or locally advanced cutaneous squamous cell carcinoma (CSCC) cases ineligible for curative surgery or radiation. Notwithstanding, some patients experience inadequate responses or severe immune-related adverse events (AEs), indicating the need for improved therapies. Cosibelimab is a high-affinity programmed cell death-ligand 1 (PD-L1)-blocking antibody that activates innate and adaptive immunity by blocking PD-L1 interaction with PD-1 and B7-1 receptors.

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Objective: Combination fluoropyrimidine-based chemotherapy is the standard first-line treatment for metastatic colorectal cancer (CRC). We performed a propensity score (PS)-based analysis to report our real-world experience with long-term follow-up of this regimen for metastatic CRC.

Methods: In this retrospective study, 170 patients with newly diagnosed metastatic CRC treated with first-line combination chemotherapy between January 2003 and March 2021 were identified.

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Background: Among patients with resected, epidermal growth factor receptor ()-mutated, stage IB to IIIA non-small-cell lung cancer (NSCLC), adjuvant osimertinib therapy, with or without previous adjuvant chemotherapy, resulted in significantly longer disease-free survival than placebo in the ADAURA trial. We report the results of the planned final analysis of overall survival.

Methods: In this phase 3, double-blind trial, we randomly assigned eligible patients in a 1:1 ratio to receive osimertinib (80 mg once daily) or placebo until disease recurrence was observed, the trial regimen was completed (3 years), or a discontinuation criterion was met.

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The study was conducted from October 2020 to March 2022 in a province in southern Thailand. The inpatients with community-acquired pneumonia (CAP) and more than 18 years old were enrolled. Of the 1511 inpatients with CAP, COVID-19 was the leading cause, accounting for 27%.

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  • A study was conducted to evaluate the effectiveness of a pain management program for metastatic cancer patients undergoing chemotherapy, focusing on pain control and quality of life.
  • The research involved a randomized trial where participants were assigned to either a specialized pain management group or standard care from medical oncologists at a Thai hospital.
  • Results indicated that patients in the pain management program experienced significantly lower pain intensity compared to those receiving standard care, highlighting the program's benefits in improving their quality of life.
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Purpose: The necessity of prophylactic percutaneous endoscopic gastrostomy (PPEG) before concurrent chemoradiation (CCRT) in head and neck cancer (HNC) patients remains uncertain. We evaluated the utilization rate of PPEG tube. Weight changes and tube dependence were also assessed.

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  • Testicular neuroendocrine tumors related to teratomas are uncommon, with limited reported cases, especially those involving visceral metastasis.
  • The presence of somatic malignant transformation (SMT) in teratomas generally indicates a poorer prognosis, and previous treatment recommendations have primarily focused on certain cancer subtypes.
  • This case study highlights a patient with testicular neuroendocrine carcinoma linked to teratoma who had a favorable response to chemotherapy, suggesting potential effectiveness of current regimens in rare instances.
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Background: Though concurrent chemoradiotherapy (CCRT) with cisplatin remains a standard of care for patients with locally advanced nasopharyngeal carcinoma (LA-NPC), carboplatin has alternatively been used without sufficient supportive evidences. Thus, we evaluated an efficacy and tolerability of carboplatin CCRT compared with cisplatin in LA-NPC patients.

Methods: Patients with LA-NPC treated with CCRT were identified through the Thai multicenter head and neck cancer database.

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Background: Phosphatidylinositol-4,5-bisphosphate 3-kinase catalytic subunit alpha (PIK3CA) mutations have been reported in many cancers, including head and neck squamous cell carcinoma (HNSCC). The frequency of these mutations varies among tumor locations and might be relevant to treatment outcomes among HNSCC. In this study, we examined the frequency of PIK3CA mutations in the different subsites of HNSCC.

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Background & Aims: The benefits of immunonutrition in patients with head and neck cancer (HNC), especially for those undergoing definitive concurrent chemoradiation (CCRT), remain unclear. We evaluated the benefits of immunonutrition regarding the prevention of severe oral mucositis. Secondary objectives included assessments of other treatment-related toxicities, changes of nutritional and inflammatory marker levels, treatment tolerance, and survival.

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Purpose: Prophylactic percutaneous endoscopic gastrostomy (PPEG) is widely used for patients with head and neck cancer undergoing concurrent chemoradiation (CCRT). Nevertheless, the necessity of its use in patients with nasopharyngeal cancer (NPC) is uncertain. This study aimed to evaluate the benefits of PPEG on prevention of weight loss and treatment tolerance in patients with NPC receiving CCRT.

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Primary pulmonary angiosarcomas (PPAs) are rare, and often, their diagnosis is delayed because of insidious clinical symptoms and imaging findings mimicking pulmonary thromboembolism (PE). A 33-year-old female patient presented with chest pain and progressive dyspnoea. Her initial diagnosis, based on clinical symptoms and CT pulmonary angiography (PA) findings, was PE.

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Purpose: No standard treatment exists for platinum-refractory, recurrent/metastatic nasopharyngeal cancer (NPC). This phase II study (NCT02605967) evaluated progression-free survival (PFS) of spartalizumab, an antiprogrammed cell death protein-1 (PD-1) monoclonal antibody, versus chemotherapy, in NPC.

Patients And Methods: Patients with nonkeratinizing recurrent/metastatic NPC who progressed on/after platinum-based chemotherapy were enrolled.

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Purpose: HER2/neu is overexpressed in up to 30% of gastroesophageal adenocarcinomas (GEA) and linked to poor prognosis. Recombinant mAbs to treat HER2/neu-overexpressing cancers are effective with limitations, including resistance and toxicity. Therefore, we developed a therapeutic B-cell epitope vaccine (IMU-131/HER-Vaxx) consisting of three fused B-cell epitopes from the HER2/neu extracellular domain coupled to CRM197 and adjuvanted with Montanide.

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Purpose: This study (NCT02083354) assessed the efficacy and safety of dabrafenib plus trametinib in East Asian patients with advanced BRAF V600-mutant cutaneous melanoma.

Method: Overall, 77 patients of East Asian origin (including 61 from Mainland China) with unresectable or metastatic BRAF V600-mutant cutaneous melanoma were enrolled. Prior treatment was allowed except with BRAF/MEK inhibitors.

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Background: Chemoradiotherapy (CRT) with high cumulative doses (CDs) of cisplatin has been considered the standard of care for non-metastatic nasopharyngeal carcinoma (NPC). However, given most patients' inability to tolerate high CDs due to cisplatin-related toxicities, the optimal CD of cisplatin during CRT remains undetermined.

Methods: Patients with non-metastatic NPC who received CRT with cisplatin between 2007 and 2017 were identified through the Thai head and neck cancer multicenter database and then categorized according to cisplatin CD (mg/m) received.

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