Kai-Cheng Chang

Mr. Kai-Cheng Chang


Research Focus & Metrics

Academic Career Length

11Years (2016-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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24 September 2019 in Cardiovascular Diabetology
Verified
Journal Article
Open access
PDF file
SSShih-Chieh Shao
Shih-Chieh Shao
KCKai-Cheng Chang
Kai-Cheng Chang
MHMing-Jui Hung
Ming-Jui Hung
NYNing-I Yang
Ning-I Yang
YCYuk-Ying Chan
Yuk-Ying Chan
Edward Chia-Cheng LaiEdward Chia-Cheng Lai
Edward Chia-Cheng Lai
Background: To compare the cardiovascular event risk in type 2 diabetes patients newly receiving dapagliflozin vs. empagliflozin.Methods: We conducted a retrospective cohort study by analyzing a multi-institutional electronic medical records database (Chang Gung Research Database) in Taiwan and included adult type 2 diabetes patients who were newly receiving sodium–glucose co-transporter 2 (SGLT2) inhibitors from 2016 to 2017. The primary outcome was a composite of cardiovascular death, myocardial infarction, ischemic stroke and heart failure. We followed up patients from initiation of SGLT2 inhibitors until the occurrence of cardiovascular events before December 31, 2018. We performed multivariable Cox proportional hazard modeling, adjusting for patients’ age, sex, laboratory data, co-morbidities, and concomitant medications.Results: We identified 12,681 new SGLT2 inhibitor users with a mean age of 58.9 (SD 11.8) years, of whom 43.9% were female and 45.8% were new dapagliflozin users. A total of 10,442 person-years of dapagliflozin use and 12,096 person-years of empagliflozin use were included. Compared to empagliflozin users, new users of dapagliflozin were found to have similar risks for primary composite outcome (adjusted HR: 0.91; 95% CI 0.73–1.14), cardiovascular death (adjusted HR: 0.54; 95% CI 0.14–2.12), myocardial infarction (adjusted HR: 0.77, 95% CI 0.49–1.19) and ischemic stroke (adjusted HR: 1.15; 95% CI 0.80–1.65), but a lower risk of heart failure (adjusted HR: 0.68; 95% CI 0.49–0.95).Conclusion: The risk of cardiovascular events was similar between dapagliflozin and empagliflozin new users, but dapagliflozin may have a better outcome in the reduction of heart failure in type 2 diabetes patients. Future prospective studies are required to confirm the findings.

1 March 2016 in Cardiovascular Diabetology
Verified
Journal Article
Open access
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HOHuang-Tz Ou
Huang-Tz Ou
KCKai-Cheng Chang
Kai-Cheng Chang
Chung-Yi LiChung-Yi Li
Chung-Yi Li
JWJin-Shang Wu
Jin-Shang Wu
Several antidiabetic drugs (i.e., sulfonylureas; SU, rosiglitazone) have been reported to be associated with increased risks of cardiovascular diseases (CVD) in patients with type 2 diabetes mellitus (T2DM). Dipeptidyl peptidase-4 inhibitors (DPP4i) are newly available antidiabetic drugs. Most studies only compared DPP4i with a placebo or SU, or targeted a specific CVD event of interest (i.e., heart failure; HF). Comparative research of CVD risks of DPP4i with other antidiabetic drugs (i.e., metformin, thiazolidinediones, meglitinides, acarbose, and insulin) remains scarce. This study was aimed to assess comparative risks of CVD, including ischemic stroke, myocardial infarction (MI) and HF, and hypoglycemia of DPP4i with other antidiabetic drugs. We utilized Taiwan’s National Health Insurance Research Database. A total of 123,050 T2DM patients newly prescribed oral antidiabetic treatments were identified in 2009–2010 and followed until 2013. Outcome endpoints included a composite of CVD events: hospitalizations for ischemic stroke, MI and HF, and hypoglycemia. Time-varying Cox proportional hazards regression was applied to assess the time to event hazards of various antidiabetic drugs, adjusted for patients’ demographics, comorbidity, diabetic complications, and co-medications. Additional analyses were performed for the patients with and without CVD history, respectively. DPP4i users had significantly lower CVD risks as compared to that of non-DPP4i users (adjusted hazard ratio [aHR]: 0.83, 95 % confidence interval [CI]: 0.76–0.91). Compared to DPP4i users, meglitinides (aHR 1.3, 95 % CI 1.20–1.43) and insulin users (aHR 3.73, 95 % CI 3.35, 4.14) had significantly higher risks for composite CVD, as well as those for stroke, MI, HF, and hypoglycemia. Additionally, metformin users had significantly lower risks for composite CVD risk (aHR 0.87, 95 % CI 0.79–0.94), as well as those for MI, HF, and hypoglycemia, as compared to those of DPP4i users. Although there was a trend toward low CVD risks in pioglitazone users, the role of potential confounding by indication cannot be excluded. DPP4i-treated T2DM patients had lower risks for CVD as compared to those for non-DPP4i users, except metformin users.

12 February 2020 in Cardiovascular Diabetology
Verified
Journal Article
Open access
PDF file
SSShih-Chieh Shao
Shih-Chieh Shao
KCKai-Cheng Chang
Kai-Cheng Chang
SLSwu-Jane Lin
Swu-Jane Lin
Rong-Nan ChienRong-Nan Chien
Rong-Nan Chien
MHMing-Jui Hung
Ming-Jui Hung
Edward Chia-Cheng LaiEdward Chia-Cheng Lai
Edward Chia-Cheng Lai
Background: Sodium glucose cotransporter 2 (SGLT2) inhibitors have shown greater reductions of cardiovascular event risks than dipeptidyl peptidase-4 (DPP4) inhibitors, whereby possible mechanisms may involve the better pleiotropic effects of SGLT2 inhibitors. However, no published data are currently available to directly compare glycemic and pleiotropic effects in real-world type 2 diabetes patients initiating SGLT2 inhibitors or DPP4 inhibitors. Method: We conducted a retrospective cohort study by analyzing the Chang Gung Research Database, the largest multi-institutional electronic medical records database in Taiwan. We included patients newly receiving SGLT2 inhibitor or DPP4 inhibitor intensification therapy for type 2 diabetes from 2016 to 2017. We matched SGLT2 inhibitor users to DPP4 inhibitor users (1:4) by propensity scores to ensure comparable characteristics between the groups. We primarily evaluated 1-year post-treatment changes of hemoglobin A1c (HbA1c) after SGLT2 inhibitor or DPP4 inhibitor initiation, using two-tailed independent t-test. We also evaluated post-treatment changes in body weight, systolic blood pressure (SBP), alanine aminotransferase (ALT) and estimated glomerular filtration rate (eGFR) values, associated with SGLT2 inhibitors and DPP4 inhibitors. Results: We identified a cohort of 2028 SGLT2 inhibitors and 8112 matched DPP4 inhibitors new users. SGLT2 inhibitors and DPP4 inhibitors showed similar HbA1c reductions (− 1.0 vs. − 1.1%; P = 0.076), but patients receiving SGLT2 inhibitors had greater improvements in body weight (− 1.5 vs. − 1.0 kg; P = 0.008), SBP (− 2.5 vs. − 0.7 mmHg; P < 0.001) and ALT values (− 4.1 vs. − 0.0 U/l; P < 0.001) and smaller declines in eGFR values (− 2.0 vs. − 3.5 ml/min/1.73 m2; P < 0.001) when compared to DPP4 inhibitors. Conclusion: SGLT2 inhibitors had glucose-lowering effects comparable to those of DPP4 inhibitors but more favorable pleiotropic effects on body weight, ALT and eGFR changes, potentially improving type 2 diabetes patients’ cardio-metabolic disease risks.


23 October 2021 in Cardiovascular Diabetology
Verified
Journal Article
Open access
PDF file
SSShih-Chieh Shao
Shih-Chieh Shao
KCKai-Cheng Chang
Kai-Cheng Chang
SLSwu-Jane Lin
Swu-Jane Lin
SCShang-Hung Chang
Shang-Hung Chang
MHMing-Jui Hung
Ming-Jui Hung
Edward Chia-Cheng LaiEdward Chia-Cheng Lai
Edward Chia-Cheng Lai
Background: The treatment effects on hospitalization for heart failure (hHF) from sodium-glucose cotransporter 2 (SGLT2) inhibitors may vary among type 2 diabetes (T2D) patients depending on whether or not they have established atherosclerotic cardiovascular diseases (ASCVD). We aimed to examine differences in hHF outcomes after dapagliflozin or empagliflozin use between T2D patients with and without a history of established ASCVD. Methods: We conducted a retrospective multi-institutional cohort study in Taiwan. We included T2D patients newly receiving dapagliflozin or empagliflozin during 2016–2019, and followed them up until December 31, 2020. We implemented 1:1 propensity score matching to create homogenous groups for comparisons. We generated Cox proportional hazard models to compare the risk of hHF between dapagliflozin and empagliflozin (reference group). We included interaction terms of SGLT2 inhibitor and ASCVD history in the regression models to examine effect modification by ASCVD. Results: We included a total cohort of 9,586 dapagliflozin new users and 9,586 matched empagliflozin new users. The overall hHF risks were similar for dapagliflozin and empagliflozin (HR: 0.90, 95% CI 0.74–1.09). However, differential hHF risks between dapagliflozin and empagliflozin were observed only in the subgroup without ASCVD (HR: 0.67, 95% CI 0.49–0.90), while not in the subgroup with ASCVD (HR: 1.12, 95% 0.87–1.45), and the p-value for examining interaction was 0.0097. Conclusion: In this study, history of established ASCVD was associated with different hHF risks among SGLT2 inhibitors. For T2D patients without ASCVD, dapagliflozin may offer a more favorable hHF reduction effect, compared to empagliflozin, in clinical practice. Future prospective studies should be conducted to validate our findings.

6 June 2023 in Cancer Medicine
Verified
Journal Article
Open access
PLPo‐Ting Lin
Po‐Ting Lin
MHMin‐Hua Hung
Min‐Hua Hung
SSShih‐Chieh Shao
Shih‐Chieh Shao
HCHui‐Yu Chen
Hui‐Yu Chen
YCYuk‐Ying Chan
Yuk‐Ying Chan
HOHuang‐Tz Ou
Huang‐Tz Ou
PurposeThe aim of this study was to investigate the factors predictive of clinical outcome in advanced hepatocellular carcinoma patients receiving ramucirumab treatment.MethodsWe conducted a retrospective study using a multi-institutional electronic medical records database in Taiwan. We included advanced HCC patients newly receiving ramucirumab as second-line or beyond systemic therapy between January 2016 and February 2022. The clinical outcomes were median progression-free survival (PFS) based on the modified Response Evaluation Criteria in Solid Tumors (mRECIST), overall survival (OS) and adverse events. We applied Kaplan-Meier methods to estimate median PFS and OS. Uni-variable and multi-variable Cox regression models were applied to identify the prognostic factors.ResultsWe included 39 ramucirumab naive users with a median age of 65.5 (IQR: 57.0-71.0) years and treatment time of 5.0 (3.0-7.0) cycles, of whom 82.1% were male and 84.6% were Barcelona Clinic Liver Cancer (BCLC) stage C. After median follow-up time of 6.0 months, 33.3% of patients' AFP level had decreased more than 20% within 12 weeks. The median PFS and OS were 4.1 months and non-reach, respectively. Moreover, tumor burden beyond the up-to-11 criteria (HR: 2.95, 95% CI: 1.04-8.38) and a decrease in estimated glomerular filtration rate of more than 10% within 12 weeks (HR: 0.31, 0.11-0.88) were significantly related to PFS in the multi-variable analysis. No patient discontinued ramucirumab during the treatment on account of side effects.ConclusionRamucirumab was an effective treatment option with good AFP response for advanced HCC patients in real-world experience. Tumor burden beyond the up-to-11 criteria and a decrease in estimated glomerular filtration rate were independent predictive factors for progression-free survival.