Do Youn Oh
Seoul National University · 医学
研究室紹介
Professor Do Youn Oh's research lab specializes in translational oncology, focusing on advanced biliary tract cancer (BTC) and pancreatic cancer. The lab investigates novel immunotherapeutic strategies, including PD-L1 inhibition (e.g., durvalumab) combined with chemotherapy, to improve outcomes in aggressive gastrointestinal malignancies. Key research directions include identifying prognostic biomarkers such as sarcopenia and soluble PD-L1, and evaluating targeted therapies like STAT3 and mTOR inhibitors in solid tumors. The lab integrates clinical trial data with molecular profiling to advance precision oncology in rare and treatment-resistant cancers.
Research Overview
Research Output Trend
Figures are computed from collected data and may differ slightly.
Selected Papers
15BACKGROUND: Patients with advanced biliary tract cancer have a poor prognosis, and first-line standard of care (gemcitabine plus cisplatin) has remained unchanged for more than 10 years. The TOPAZ-1 trial evaluated durvalumab plus chemotherapy for patients with advanced biliary tract cancer. METHODS: In this double-blind, placebo-controlled, phase 3 study, we randomly assigned patients with previously untreated unresectable or metastatic biliary tract cancer or with recurrent disease 1:1 to rece
Sarcopenia at diagnosis and depletion of skeletal muscle, independent of BMI change, during chemotherapy were poor prognostic factors in advanced pancreatic cancer.
378 Background: BTC is a rare, heterogenous cancer with poor prognosis. Reports on immunogenic features of BTC suggest checkpoint inhibition may result in antitumor immune responses, and limited clinical activity has been seen with single agents in advanced settings. Durvalumab (PD-L1 inhibitor) + GemCis showed promising antitumor activity in advanced BTC in a phase 2 study. TOPAZ-1 (NCT03875235) is the first global phase 3 study to evaluate first-line immunotherapy + GemCis in advanced BTC. Met
This study demonstrates feasibility of STAT3 inhibition in patients with advanced solid tumor. OPB-31121, at the MTD of 800 mg/day, was safe and relatively well tolerated, and has a preliminary antitumor activity.
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). Blood was collected from 158 advanced BTC patients (68 intrahepatic cholangiocarcinoma, 56 gallbladder cancer, 22 extrahepatic cholangiocarcinoma an
BACKGROUND: The current study was conducted to evaluate the efficacy and safety of everolimus in the treatment of patients with nonfunctioning neuroendocrine tumors (NETs) or pheochromocytomas/paragangliomas. METHODS: Patients with histologically confirmed nonfunctioning NETs or pheochromocytomas/paragangliomas and with documented disease progression before study enrollment were eligible for the current study. Everolimus was administered daily at a dose of 10 mg for 4 weeks. Response was assesse
BACKGROUND: In the course of surveillance of gastric cancer recurrence after curative resection, contrast CT scan is used in general. However, new findings from CT scan are not always confirmatory for the recurrence. In this case, we usually use short-term follow up strategy or therapeutic intervention with clinical decision. Recently, the use of fusion Positron Emission Tomography/Computed Tomography (PET/CT) is increasing. The purpose of this study is to evaluate the efficacy and usefulness of
BACKGROUND: The role of the physician in end-of-life decision-making is complicated. To analyze the controversies that surround therapeutic decision-making and the withholding of life-sustaining treatments, the authors compared values regarding therapeutic intervention that were held by physicians and family members of patients with terminal malignancies. METHODS: One hundred fourteen patients with either advanced-stage or terminal disease were enrolled in the current study. Questionnaires were
// Ah-Rong Nam 1, * , Ji-Won Kim 2, * , Yongjun Cha 1, 3 , Hyerim Ha 3 , Ji Eun Park 1 , Ju-Hee Bang 1 , Mei Hua Jin 1 , Kyung-Hun Lee 1, 3 , Tae-Yong Kim 1 , Sae-Won Han 1, 3 , Seock-Ah Im 1, 3 , Tae-You Kim 1, 3 , Do-Youn Oh 1, 3 , Yung-Jue Bang 1, 3 1 Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea 2 Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea 3 Department of Internal Medicine, Seoul National University Ho