• 이화여자대학교 의학박사
• 이화여자대학교 의과대학 졸업

• 현재  | 이대서울병원 웰니스건강증진센터 임상부교수
• 2018-2019  | 신촌세브란스병원 소화기내과 진료교수
• 2017-2018  | 신촌세브란스병원 소화기내과 임상연구조교수
• 2015-2017  | 이대목동병원 소화기내과 전임의
• 2011-2015  | 이대목동병원 내과 전공의

• 2015  | 대한내과학회 정회원
• 2015  | 대한상부위장관 헬리코박터학회
• 2016  | 대한소화기내시경학회 평생회원
• 2016  | 대한소화기학회 평생회원
• 2017  | 대한장연구학회 평생회원

•  Impact of age at diagnosis on long‐term prognosis in patients with intestinal Behçet's disease.  Journal of Gastroenterology and Hepatology. 2023-12. 
•  Development of functional gastrointestinal disorder symptoms following laparoscopic cholecystectomy: a prospective cohort study.  Frontiers in Medicine . 2023-10. 
•  Pharmacogenetics-based personalized treatment in patients with inflammatory bowel disease A narrative review.  Precision and Future Medicine. 2021-12. 
• Chang JY, Moon CM, Shim KN, Cheung DY, Lee HS, Lim YJ, et al. Positive Fecal Occult Blood Test is a Predictive Factor for Gastrointestinal Bleeding after Capsule Endoscopy in Patients with Unexplained Iron Deficiency Anemia: A Korean Multicenter CAPENTRY Study.  Clin Endosc. 2020. 
• Chang JY, Kim JH, Kang J, Park Y, Park SJ, Cheon JH, et al. mTOR Signaling Combined with Cancer Stem Cell Markers as a Survival Predictor in Stage II Colorectal Cancer.  Yonsei Med J. 2020;61:572-8. 
• Chang JY, Park SJ, Jung ES, Jung SA, Moon CM, Chun J, et al. Genotype-based Treatment With Thiopurine Reduces Incidence of Myelosuppression in Patients With Inflammatory Bowel Diseases.  Clin Gastroenterol Hepatol. 2020;18:2010-8 e2. 
• Chang JY, Cheon JH. hiopurine Therapy in Patients With Inflammatory Bowel Disease: A Focus on Metabolism and Pharmacogenetics.  Dig Dis Sci. 2019;64:2395-403. 
•  Response to hepatitis B vaccination in patients with inflammatory bowel disease: a prospective observational study in Korea.  Intestinal Research. 2018-10. 
•  Does medical acceleration improve outcomes in ulcerative colitis patients who are in clinical remission but have endoscopic inflammation?.  Digestive Disease and Science. 2018-07. 
•  Predictive factors for missed adenoma on repeat colonoscopy in patients with suboptimal bowel preparation on initial colonoscopy: A KASID multicenter study.  PLOS ONE. 2018-04. 
•  Fecal Immunochemical Test and Fecal Calprotectin Measurement Are Noninvasive Monitoring Tools for Predicting Endoscopic Activity in Patients with Ulcerative Colitis.  Gut and Liver. 2018-03. 
•  Emergence of rifampin-resistant staphylococci after rifaximin administration in cirrhotic patients.  PLOS ONE. 2017-10. 
•  Comparison of clinical outcomes after endoscopic submucosal dissection and surgery in the treatment of early gastric cancer: A single-institute study.  Medicine. 2017-07. 
•  Progression and Treatment Outcomes of Lung Disease Caused by Mycobacterium abscessus and Mycobacterium massiliense.  CLINICAL INFECTIOUS DISEASES . 2017-02. 
•  Triple therapy versus sequential therapy for the first-line Helicobacter pylori eradication.  BMC Gastroenterology . 2017-01. 
•  Variable Endoscopic Findings and Clinicopathological Characteristics of Borrmann type 4 Advanced Gastric Cancer.  Korean J Helicobacter Up Gastrointest Res. 2015-09. 

• [의학신문] 이대서울 장지영교수팀, 소화기내시경연구재단 우수논문상 2021-11-23