Publications by authors named "Hyerim Ha"

Novel clinical trial designs are conducted in the precision medicine era. This study aimed to evaluate biomarker-driven, adaptive phase II trials in precision oncology, focusing on infrastructure, efficacy, and safety. We systematically reviewed and analyzed the target studies.

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Background: The Khorana score (KS) has not been well studied in East Asian cancer patients, who have different genetic backgrounds for inherited thrombophilia, body metabolism, and cancer epidemiology.

Methods: By using the Common Data Model, we retrospectively collected deidentified data from 11,714 consecutive newly diagnosed cancer patients who underwent first-line chemotherapy from December 2015 to December 2021 at a single institution in Korea, and we applied the KS for cancer-associated thrombosis (CAT) prediction. Age at diagnosis, sex, and use of highly thrombogenic chemotherapeutics were additionally investigated as potential risk factors for CAT development.

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Background: Although a considerable proportion of patients with cancer receive chemotherapy (CT) or radiotherapy (RT), only a very few patients eventually develop therapy-related myeloid neoplasms (t-MNs).

Methods: To identify subsets of cancer patients who have substantially elevated risk of developing t-MNs. Incidences and risks of t-MNs after contemporary CT or RT in patients newly diagnosed major cancers during 2009-2013 were analyzed.

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Cytotoxic chemotherapy has been a mainstay of cancer treatment since the 1940s. In the recent era of emergent targeted therapies and immunotherapies, many cytotoxic chemotherapy agents including temozolomide are still one of main weapons for the treatment of high grade gliomas. However, cytotoxic chemotherapy often causes side effects.

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Purpose: Rapid development of novel therapeutics in renal cell carcinoma (RCC) has led to financial burden for patients and society. Value including clinical benefit, toxicity affecting quality of life and cost-effectiveness are a concern, prompting the need for tools to facilitate value assessment of therapeutics. This study reviews the value assessment tools, and evaluates the value of emerging therapeutics in RCC.

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Although approximately 50% of patients with acute myeloid leukemia (AML) are diagnosed over the age of 60 years, there is currently no established consensus on the treatment of elderly AML patients. Herein, we aimed to explore the incidence, medical expenditure, treatment, and outcomes of elderly AML patients in Korea by analyzing a nationwide cohort. We employed the Korean National Health Insurance Service-Senior cohort, which represents 10% of a random selection from a total of 5.

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Although smoking status has potential as a biomarker for immune checkpoint blockade in advanced non-small cell lung cancer (NSCLC), its clinical significance remains obscure. This meta-analysis aims to assess the impact of the smoking status on the efficacy of first-line immunotherapy and to find better treatment in never-smoker and ever-smoker patients. We searched the MEDLINE, EMBASE, and Cochrane database for trials comparing immunotherapy with conventional chemotherapy as front-line treatment for advanced NSCLC.

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Background: As the role of immunotherapies and personalized medicine grow, cancer patients have faced many choices in treatments and have suffered financial toxicity. These challenges brought the need for the value framework (VF) to guide treatment decision making.

Methods: A survey was taken to 102 oncologists about perception for VF.

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This study sought to adapt the existing value framework (VF) to produce a reliable and valid Korean oncology VF. Two VFs developed by The American Society of Clinical Oncology (ASCO) and the European Society for Medical Oncology (ESMO) were selected for examination in the present study. Forward and backward translations were conducted for six high-priced drugs indicated for non-small-cell lung cancer and multiple myeloma.

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Background: While surgical resection is the treatment of choice for adenoid cystic carcinoma (ACC), patients with metastasis and those who cannot undergo surgery receive palliative chemotherapy. However, the role of palliative chemotherapy is not clear yet. This study aimed to evaluate the efficacy of chemotherapy with cyclophosphamide, doxorubicin, and cisplatin (CAP) for patients with ACC; and to analyze the relationship between the pre-chemotherapy tumor growth rate (P-TGR) and treatment outcomes in patients with the recurred metastatic unresectable ACC.

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Background/aims: Adenoid cystic carcinoma (ACC) is a rare salivary gland tumor characterized by indolence, with a high rate of local recurrence and distant metastasis. This study aimed to investigate the effect of concurrent chemoradiation (CCRT) on locally advanced unresectable ACC.

Methods: We retrospectively analyzed clinical data from 10 patients with pathologically confirmed ACC of the head and neck who received CCRT with cisplatin in Seoul National University Hospital between 2013 and 2018.

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Background: Tuberculosis is associated with hypercoagulation; however, there are few reports of cases thromboembolism and tuberculosis at the same time in the real world. The purpose of this study was to report the incidence and clinical course of thromboembolism in patients diagnosed with tuberculosis.

Materials And Methods: We retrospectively analyzed the data of patients who were diagnosed with both tuberculosis and thromboembolism including pulmonary thromboembolism (PTE) or deep vein thrombosis (DVT) at Seoul National University Boramae Medical Center from January 2000 through March 2015.

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Purpose: The soluble programmed death-ligand 1 (sPDL1) has immunosuppressive activity and is a candidate biomarker for immuno-oncology drug development. In this study, we measured sPDL1 at pre- and post-chemotherapy and at disease progression to uncover the dynamics of sPDL1 during treatment in biliary tract cancer (BTC) patients.

Materials And Methods: From 90 BTC patients (training cohort, 53; validation cohort, 37) who were candidates for palliative first-line chemotherapy, blood was collected at pre- and post-chemotherapy (at the time of best response) and at disease progression.

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Background/aims: This study was to evaluate the clinical significance of infusion-related reaction (IRR) of rituximab in diffuse large B-cell lymphoma (DLBCL) patients who received R-CHOP (rituximab, cyclophosphamide, doxorubicin, vincristine, and prednisolone) as a first-line chemotherapy.

Methods: The medical records of 326 patients diagnosed with DLBCL were re trospectively analyzed. Both doctor's progress records and nursing records were reviewed.

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Programmed death-ligand 1 (PD-L1) expression in tumor tissue is under investigation as a candidate biomarker in immuno-oncology dug development. The soluble form of PD-L1 (sPDL1) is suggested to have immunosuppressive activity. In this study, we measured the serum level of sPDL1 and evaluated its prognostic implication in biliary tract cancer (BTC).

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Article Synopsis
  • - This study investigates HER2 as a potential therapeutic target for biliary tract cancer (BTC), an area where validated targets are currently lacking.
  • - Researchers established two HER2-amplified BTC cell lines, which showed sensitivity to drugs like trastuzumab, dacomitinib, and afatinib, leading to significant cell cycle arrest and apoptosis.
  • - In clinical evaluations, about 13% of advanced BTC patients were found to be HER2-positive, with some showing positive responses to HER2-targeted chemotherapy, indicating the need for further development of HER2-targeting strategies.
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Purpose: The dose intensity of doxorubicin (DID) is important to the survival of diffuse large B cell lymphoma (DLBCL) patients. However, due to expected toxicities, most elderly patients cannot receive full doses of anthracyclines. The purpose of this study was to evaluate the effect of DID on the survival of elderly DLBCL patients (age ≥ 70 years) in the rituximab era.

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The total cost of hematopoietic stem cell transplantation (HSCT) as well as the financial impact of HSCT on the house holds of patients have been elusive. Between 2005 and 2012, we analyzed 191 HSCT in adult patients with leukemia with reduced-intensity conditioning (RIC) regimen (n = 79) and with myeloablative conditioning (MAC) regimen (n = 112). The direct medical costs were calculated from healthcare claims obtained from the Seoul National University Hospital, and the direct non-medical and the indirect costs were calculated from national statistics.

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The purpose of this study was to analyze the pre- and post-treatment neutrophil to lymphocyte ratio (pre- and post-NLR) in combination with immunologic profiles in patients with diffuse large B-cell lymphoma (DLBCL) treated with rituximab, cyclophosphamide, doxorubicin, vincristine and prednisone (R-CHOP). A total of 447 newly diagnosed patients with DLBCL treated with R-CHOP were analyzed retrospectively. A pre-NLR ≥ 3 was independently associated with poor progression-free survival (PFS) (hazard ratio [HR] = 2.

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