Sodium/glucose co-transporter 2 inhibitors (SGLT2i) represent a novel class of glucose-lowering agents that lower plasma glucose levels through pharmacological inhibition of glucose reuptake from the kidney, independent of insulin secretion and action. Clinical trials of SGLT2i demonstrated therapeutic benefits on glycemic control and bodyweight in individuals with type 2 diabetes, with few cases of serious adverse events (SAEs). However, a considerable number of SAEs were reported in patients receiving SGLT2i clinically in Japan during the first 3 months of their use. These included urogenital infections, hypoglycemia and dehydration. Unexpectedly, serious skin and subcutaneous disorders, mainly reported as generalized rash or skin eruption, were prominent in patients receiving SGLT2i, but with unknown mechanisms. There is also concern for potential SAEs associated with chronic SGLT2i administration, especially in the non-obese type 2 diabetes characterized by reduced insulin secretion often seen in East Asia. Chronic SAEs may include severe hypoglycemia due to depletion of hepatic glycogen storage, acceleration of diabetes-associated sarcopenia and ketosis/ketoacidosis. The current information on acute SAEs confirms the importance of caution in the appropriate use of SGLT2i. Furthermore, careful long-term observation of patients receiving SGLT2i is essential to avoid SAEs and for better clinical use of this drug class.
This study was initiated to evaluate the association of acute pancreatitis (AP) with the use of dipeptidyl peptidase-4 (DPP-4) inhibitors among patients with diabetes in Japan. A retrospective cohort study of a large medical and pharmacy claims database was performed to compare the incidence of AP among those receiving DPP-4 inhibitors and those receiving other oral antidiabetic drugs. The incidence of all AP and hospitalizations for AP was similar between the two groups. Previous exposure to DPP-4 inhibitors did not affect occurrence of AP in patients on other oral antidiabetic drugs. The Kaplan–Meier curve for time to AP was similar between the two groups, and was not affected by previous exposure to DPP-4 inhibitors. The Cox proportional hazard models showed the incidence of AP was not significantly higher in those receiving DPP-4 inhibitors. Despite numerous, important limitations related to claims database-based analyses, our results indicate that there is no increased risk of AP with use of DPP-4 inhibitors among patients with diabetes in Japan.
The screening rate for HBV among cancer patients scheduled for chemotherapy remains unsatisfactory, especially in patients with solid tumors and those from non-cancer centers. Although the figures are improving after the announcement of the Japanese guideline, intensive measures to improve awareness about HBV reactivation during/after chemotherapy are needed.
ObjectiveAlthough heated tobacco products (HTPs) have become popular worldwide, research on occupational differences in smoking HTPs remains scarce. We aimed to examine the prevalence of smoking HTPs among a working population in Japan.Setting, design and participantsIn 2018, we conducted a cross-sectional study comprised of 7714 retail business workers in the service industry in Japan.Primary and secondary outcome measuresFor the definition of smoking HTPs, we identified current HTP smokers who only smoked HTPs, using five mutual categories of current smoking status (never, former, HTPs only, combustible cigarettes only and dual smokers who smoked both combustible cigarettes and HTPs). Occupational classes were classified into office workers (eg, upper non-manual workers) and other workers. ORs and 95% CIs of office workers were estimated for HTP usage, adjusted for age, sex, employment type and cigarette smoking-related health knowledge.ResultsThe overall prevalence of smoking HTPs was 3.0% (male 5.0%, female 2.2%). The prevalence of HTP smokers differed across occupational classes (5.6% in office workers vs 2.5% in others; p<0.05). Compared with other workers, the adjusted odds of office workers for smoking HTPs remained elevated (OR: 1.97, 95% CI: 1.40 to 2.77). Sensitivity analyses with workers of all smoking status showed the same pattern. When stratified by sex, the occupational difference only remained significant in male workers.ConclusionsWe found a positive occupational difference in smoking HTPs, particularly among male workers in the retail sector in Japan. National tobacco control should explicitly address this occupational gap and further encourage individuals to quit smoking.
Objective To identify risk factors for bleeding in atrial fibrillation (AF) patients treated with anti-coagulants such as warfarin, apixaban, edoxaban, dabigatran, rivaroxaban using a large claims database. Methods A claims database for 8926 AF patients from 2004 to 2016 was obtained from JMDC. Inc. We performed a retrospective cohort study in 2796 Japanese AF patients with 4-month screening and 12-month observation periods. Polypharmacy was defined as prescription of over six drugs. Logistic regression analysis was conducted after stratification based on the presence and absence of cerebrovascular diseases to detect the predictive factors for bleeding. Results Polypharmacy was observed in 815 of 2796 (29.1%) patients. A total of 371 AF patients (13.3%) experienced bleeding in the 12-month observation period. Bleeding risk assessment using multiple logistic regression analysis revealed that the odds ratio for the number of coadministered drugs in the elderly (age for �60, �74) was not significant in those without and with cerebrovascular diseases (1.05 [0.99-1.12], N.S. and 1.10 [0.96-1.27], N.S.). In contrast, in the young (age for <60), the number of co-administered drugs was a significant predictive factor in those without and with cerebrovascular diseases (1.09 [1.03-1.16], p = 0.0054 and 1.20 [1.05-1.36], p = 0.0059). Other observed predictors were"history of bleeding" in young and elderly, but "polypharmacy" and "start from warfarin" were observed in only young. Conclusion We determined the bleeding risk in the clinical setting using a large claims database. Physicians and pharmacists need to monitor patients for the initial bleeding signs, particularly in those with these predictive risk factors.
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