Ono Pharmaceutical Research Articles

Nivolumab plus ipilimumab versus nivolumab in microsatellite instability-high metastatic colorectal cancer (CheckMate 8HW): a randomised, open-label, phase 3 trial.

CheckMate 8HW prespecified dual primary endpoints, assessed in patients with centrally confirmed microsatellite instability-high or mismatch repair-deficient status: progression-free survival with nivolumab plus ipilimumab compared with chemotherapy as first-line therapy and progression-free survival with nivolumab plus ipilimumab compared with nivolumab alone, regardless of previous systemic treatment for metastatic disease. In our previous report, nivolumab plus ipilimumab showed superior progression-free survival versus chemotherapy in first-line microsatellite instability-high or mismatch repair-deficient metastatic colorectal cancer in the CheckMate 8HW trial. Here, we report results from the prespecified interim analysis for the other primary endpoint of progression-free survival for nivolumab plus ipilimumab versus nivolumab across all treatment lines. CheckMate 8HW is a randomised, open-label, international, phase 3 trial at 128 hospitals and cancer centres across 23 countries. Immunotherapy-naive adults with unresectable or metastatic colorectal cancer across different lines of therapy and microsatellite instability-high or mismatch repair-deficient status per local testing were randomly assigned (2:2:1) to nivolumab plus ipilimumab (nivolumab 240 mg, ipilimumab 1 mg/kg, every 3 weeks for four doses; then nivolumab 480 mg every 4 weeks; all intravenously), nivolumab (240 mg every 2 weeks for six doses, then 480 mg every 4 weeks; all intravenously), or chemotherapy with or without targeted therapies. The dual independent primary endpoints were progression-free survival by blinded independent central review with nivolumab plus ipilimumab versus chemotherapy (first line) and progression-free survival by blinded independent central review with nivolumab plus ipilimumab versus nivolumab (all lines) in patients with centrally confirmed microsatellite instability-high or mismatch repair-deficient metastatic colorectal cancer. This study is registered with ClinicalTrials.gov (NCT04008030). Between Aug 16, 2019, and April 10, 2023, 707 patients were randomly assigned to nivolumab plus ipilimumab (n=354) or nivolumab alone (n=353). 296 (84%) of 354 patients in the nivolumab plus ipilimumab group and 286 (81%) of 353 patients in the nivolumab group were centrally confirmed to have microsatellite instability-high or mismatch repair-deficient status. At the data cutoff on Aug 28, 2024, median follow-up (from randomisation to data cutoff) was 47·0 months (IQR 38·4 to 53·2). Nivolumab plus ipilimumab treatment showed significant and clinically meaningful improvement in progression-free survival versus nivolumab (hazard ratio 0·62, 95% CI 0·48-0·81; p=0·0003). Median progression-free survival was not reached with nivolumab plus ipilimumab (95% CI 53·8 to not estimable) and was 39·3 months with nivolumab (22·1 to not estimable). Treatment-related adverse events of any grade occurred in 285 (81%) of 352 patients receiving nivolumab plus ipilimumab and in 249 (71%) of 351 patients receiving nivolumab; grade 3 or 4 treatment-related adverse events occurred in 78 (22%) and 50 (14%) patients, respectively. There were three treatment-related deaths: one event of myocarditis and pneumonitis each in the nivolumab plus ipilimumab group and one pneumonitis event in the nivolumab group. Nivolumab plus ipilimumab showed superior progression-free survival versus nivolumab across all treatment lines, with a manageable safety profile, in patients with microsatellite instability-high or mismatch repair-deficient metastatic colorectal cancer. These results, together with the first-line results of superior progression-free survival with nivolumab plus ipilimumab versus chemotherapy, suggest nivolumab plus ipilimumab as a potential new standard of care for patients with microsatellite instability-high or mismatch repair-deficient metastatic colorectal cancer. Bristol Myers Squibb and Ono Pharmaceutical.

Nivolumab plus Ipilimumab in Microsatellite-Instability–High Metastatic Colorectal Cancer

BackgroundPatients with microsatellite-instability–high (MSI-H) or mismatch-repair–deficient (dMMR) metastatic colorectal cancer have poor outcomes with standard chemotherapy with or without targeted therapies. Nivolumab plus ipilimumab has shown clinical benefit in nonrandomized studies of MSI-H or dMMR metastatic colorectal cancer.MethodsIn this phase 3 open-label trial, we randomly assigned patients with unresectable or metastatic colorectal cancer and MSI-H or dMMR status according to local testing to receive, in a 2:2:1 ratio, nivolumab plus ipilimumab, nivolumab alone, or chemotherapy with or without targeted therapies. The dual primary end points, assessed in patients with centrally confirmed MSI-H or dMMR status, were progression-free survival with nivolumab plus ipilimumab as compared with chemotherapy as first-line therapy and progression-free survival with nivolumab plus ipilimumab as compared with nivolumab alone in patients regardless of previous systemic treatment for metastatic disease. At this prespecified interim analysis, the first primary end point (involving nivolumab plus ipilimumab vs. chemotherapy) was assessed.ResultsA total of 303 patients who had not previously received systemic treatment for metastatic disease were randomly assigned to receive nivolumab plus ipilimumab or chemotherapy; 255 patients had centrally confirmed MSI-H or dMMR tumors. At a median follow-up of 31.5 months (range, 6.1 to 48.4), progression-free survival outcomes (the primary analysis) were significantly better with nivolumab plus ipilimumab than with chemotherapy (P<0.001 for the between-group difference in progression-free survival, calculated with the use of a two-sided stratified log-rank test); 24-month progression-free survival was 72% (95% confidence interval [CI], 64 to 79) with nivolumab plus ipilimumab as compared with 14% (95% CI, 6 to 25) with chemotherapy. At 24 months, the restricted mean survival time was 10.6 months (95% CI, 8.4 to 12.9) longer with nivolumab plus ipilimumab than with chemotherapy, a finding consistent with the primary analysis of progression-free survival. Grade 3 or 4 treatment-related adverse events occurred in 23% of the patients in the nivolumab-plus-ipilimumab group and in 48% of the patients in the chemotherapy group.ConclusionsProgression-free survival was longer with nivolumab plus ipilimumab than with chemotherapy among patients who had not previously received systemic treatment for MSI-H or dMMR metastatic colorectal cancer. (Funded by Bristol Myers Squibb and Ono Pharmaceutical; CheckMate 8HW ClinicalTrials.gov number, NCT04008030.)

A heterocyclic compound inhibits viral release by inducing cell surface BST2/Tetherin/CD317/HM1.24

The introduction of combined antiretroviral therapy (cART) has greatly improved the quality of life of human immunodeficiency virus type 1 (HIV-1)-infected individuals. Nonetheless, the ever-present desire to seek out a full remedy for HIV-1 infections makes the discovery of novel antiviral medication compelling. Owing to this, a new late-stage inhibitor, Lenacapavir/Sunlenca, an HIV multi-phase suppressor, was clinically authorized in 2022. Besides unveiling cutting-edge antivirals inhibiting late-stage proteins or processes, newer therapeutics targeting host restriction factors hold promise for the curative care of HIV-1 infections. Notwithstanding, bone marrow stromal antigen 2 (BST2)/Tetherin/CD317/HM1.24, which entraps progeny virions is an appealing HIV-1 therapeutic candidate. In this study, a novel drug screening system was established, using the Jurkat/Vpr-HiBiT T cells, to identify drugs that could obstruct HIV-1 release; the candidate compounds were selected from the Ono Pharmaceutical compound library. Jurkat T cells expressing Vpr-HiBiT were infected with NL4-3, and the amount of virus release was quantified indirectly by the amount of Vpr-HiBiT incorporated into the progeny virions. Subsequently, the candidate compounds that suppressed viral release were used to synthesize the heterocyclic compound, HT-7, which reduces HIV-1 release with less cellular toxicity. Notably, HT-7 increased cell surface BST2 coupled with HIV-1 release reduction in Jurkat cells but not Jurkat/KO-BST2 cells. Seemingly, HT-7 impeded simian immunodeficiency virus (SIV) and severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) release. Concisely, these results suggest that the reduction in viral release, following HT-7 treatment, resulted from the modulation of cell surface expression of BST2 by HT-7.

Adjuvant nivolumab plus chemotherapy versus placebo plus chemotherapy for stage III gastric or gastro-oesophageal junction cancer after gastrectomy with D2 or more extensive lymph-node dissection (ATTRACTION-5): a randomised, multicentre, double-blind, placebo-controlled, phase 3 trial

In Asia, adjuvant chemotherapy after gastrectomy with D2 or more extensive lymph-node dissection is standard treatment for people with pathological stage III gastric or gastro-oesophageal junction (GEJ) cancer. We aimed to assess the efficacy and safety of adjuvant nivolumab plus chemotherapy versus placebo plus chemotherapy administered in this setting. ATTRACTION-5 was a randomised, multicentre, double-blind, placebo-controlled, phase 3 trial conducted at 96 hospitals in Japan, South Korea, Taiwan, and China. Eligible patients were aged between 20 years and 80 years with histologically confirmed pathological stage IIIA-C gastric or GEJ adenocarcinoma after gastrectomy with D2 or more extensive lymph-node dissection, with an Eastern Cooperative Oncology Group (ECOG) performance status score of 0 or 1 and available tumour tissue for PD-L1 expression analysis. Patients were randomly assigned (1:1) to receive either nivolumab plus chemotherapy or placebo plus chemotherapy via an interactive web-response system with block sizes of four. Investigational treatment, either nivolumab 360 mg or placebo, was administered intravenously for 30 min once every 3 weeks. Adjuvant chemotherapy was administered as either tegafur-gimeracil-oteracil (S-1) at an initial dose of 40 mg/m2 per dose orally twice per day for 28 consecutive days, followed by 14 days off per cycle, or capecitabine plus oxaliplatin consisting of an initial dose of intravenous oxaliplatin 130 mg/m2 for 2 h every 21 days and capecitabine 1000 mg/m2 per dose orally twice per day for 14 consecutive days, followed by 7 days off treatment. The primary endpoint was relapse-free survival by central assessment. The intention-to-treat population, consisting of all randomly assigned patients, was used for analysis of efficacy endpoints. The safety population, defined as patients who received at least one dose of trial drug, was used for analysis of safety endpoints. This trial is registered with ClinicalTrials.gov (NCT03006705) and is closed. Between Feb 1, 2017, and Aug 15, 2019, 755 patients were randomly assigned to receive either adjuvant nivolumab plus chemotherapy (n=377) or adjuvant placebo plus chemotherapy (n=378). 267 (71%) of 377 patients in the nivolumab group and 263 (70%) of 378 patients in the placebo group were male; 110 (29%) of 377 patients in the nivolumab group and 115 (31%) of 378 patients in the placebo group were female. 745 patients received assigned treatment (371 in the nivolumab plus chemotherapy group; 374 in the placebo plus chemotherapy group), which was the safety population. Median time from first dose to data cutoff was 49·1 months (IQR 43·1-56·7). 3-year relapse-free survival was 68·4% (95% CI 63·0-73·2) in the nivolumab plus chemotherapy group and 65·3% (59·9-70·2) in the placebo plus chemotherapy group; the hazard ratio for relapse-free survival was 0·90 (95·72% CI 0·69-1·18; p=0·44). Treatment-related adverse events occurred in 366 (99%) of 371 patients in the nivolumab plus chemotherapy group and 364 (98%) of 374 patients in the placebo plus chemotherapy group. Discontinuation due to adverse events was more frequent in the nivolumab plus chemotherapy group (34 [9%] of 371 patients) than the placebo plus chemotherapy group (13 [4%] of 374 patients). The most common treatment-related adverse events were decreased appetite, nausea, diarrhoea, neutrophil count decreased, and peripheral sensory neuropathy. The results of this trial do not support the addition of nivolumab to postoperative adjuvant therapy for patients with untreated, locally advanced, resectable gastric or GEJ cancer. Ono Pharmaceutical and Bristol Myers Squibb.

Nivolumab with or without ipilimumab in patients with recurrent or metastatic cervical cancer (CheckMate 358): a phase 1–2, open-label, multicohort trial

In preliminary findings from the recurrent or metastatic cervical cancer cohort of CheckMate 358, nivolumab showed durable anti-tumour responses, and the combination of nivolumab plus ipilimumab showed promising clinical activity. Here, we report long-term outcomes from this cohort. CheckMate 358 was a phase 1-2, open-label, multicohort trial. The metastatic cervical cancer cohort enrolled patients from 30 hospitals and cancer centres across ten countries. Female patients aged 18 years or older with a histologically confirmed diagnosis of squamous cell carcinoma of the cervix with recurrent or metastatic disease, an Eastern Cooperative Oncology Group performance status of 0 or 1, and up to two previous systemic therapies were enrolled into the nivolumab 240 mg every 2 weeks group, the randomised groups (nivolumab 3 mg/kg every 2 weeks plus ipilimumab 1 mg/kg every 6 weeks [NIVO3 plus IPI1] or nivolumab 1 mg/kg every 3 weeks plus ipilimumab 3 mg/kg every 3 weeks for four cycles then nivolumab 240 mg every 2 weeks [NIVO1 plus IPI3]), or the NIVO1 plus IPI3 expansion group. All doses were given intravenously. Patients were randomly assigned (1:1) to NIVO3 plus IPI1 or NIVO1 plus IPI3 via an interactive voice response system. Treatment continued until disease progression, unacceptable toxicity, or consent withdrawal, or for up to 24 months. The primary endpoint was investigator-assessed objective response rate. Anti-tumour activity and safety were analysed in all treated patients. This study is registered with ClinicalTrials.gov (NCT02488759) and is now completed. Between October, 2015, and March, 2020, 193 patients were recruited in the recurrent or metastatic cervical cancer cohort of CheckMate 358, of whom 176 were treated. 19 patients received nivolumab monotherapy, 45 received NIVO3 plus IPI1, and 112 received NIVO1 plus IPI3 (45 in the randomised group and 67 in the expansion group). Median follow-up times were 19·9 months (IQR 8·2-44·8) with nivolumab, 12·6 months (7·8-37·1) with NIVO3 plus IPI1, and 16·7 months (7·2-27·5) with pooled NIVO1 plus IPI3. Objective response rates were 26% (95% CI 9-51; five of 19 patients) with nivolumab, 31% (18-47; 14 of 45 patients) with NIVO3 plus IPI1, 40% (26-56; 18 of 45 patients) with randomised NIVO1 plus IPI3, and 38% (29-48; 43 of 112 patients) with pooled NIVO1 plus IPI3. The most common grade 3-4 treatment-related adverse events were diarrhoea, hepatic cytolysis, hyponatraemia, pneumonitis, and syncope (one [5%] patient each; nivolumab group), diarrhoea, increased gamma-glutamyl transferase, increased lipase, and vomiting (two [4%] patients each; NIVO3 plus IPI1 group), and increased lipase (nine [8%] patients) and anaemia (seven [6%] patients; pooled NIVO1 plus IPI3 group). Serious treatment-related adverse events were reported in three (16%) patients in the nivolumab group, 12 (27%) patients in the NIVO3 plus IPI1 group, and 47 (42%) patients in the pooled NIVO1 plus IPI3 group. There was one treatment-related death due to immune-mediated colitis in the NIVO1 plus IPI3 group. Nivolumab monotherapy and nivolumab plus ipilimumab combination therapy showed promise in the CheckMate 358 study as potential treatment options for recurrent or metastatic cervical cancer. Future randomised controlled trials of nivolumab plus ipilimumab or other dual immunotherapy regimens are warranted to confirm treatment benefit in this patient population. Bristol Myers Squibb and Ono Pharmaceutical.

Abstract B148: Novel low-atomic cluster Ag5 induced oxidative stress and antiproliferation in Esophageal Squamous Cell Carcinoma Cells

Abstract Background: Accumulation of reactive oxygen species (ROS) intensively activates cellular stress responses leading to cell death, thus ROS levels are strictly controlled by various antioxidants in normal cells. Esophageal cancer (ESCA), the sixth most common cause of cancer deaths, highly accumulates ROS under uncontrolled redox balances to activate oxidative-stress response pathways. Arjuna Therapeutics has developed a novel low-atomic cluster Ag5 as a ROS inducer, which strongly inhibits antioxidant pathways of glutathione and thioredoxin. In this study, we pharmacologically evaluate Ag5 on its therapeutic potential in preclinical ESCA models. Materials and Methods: Gene enrichment analyses were performed with 6,327 RNA-seq data of 14 cancer types in TCGA database. Cell panel studies of ATP-based cell viability was performed in vehicle control, Ag5 (3 uM), N-acetylcysteine (NAC, 5mM), and combination treatments in 31 esophageal squamous cell carcinoma (ESCC) cell lines and 5 non-ESCC cell lines. NAC) treatment was used as a rescue control of an antioxidant. We also conducted time-lapse imaging analysis with DCFDA (ROS indicator) and SYTOX (cell death marker). The morphology of mitochondria and ER were determined by electron microscope (EM). Results: Gene enrichment analyses revealed ROS-related genes were upregulated in ESCA compared to other cancer types. In the cell panel studies, Ag5 also exhibited potent antiproliferation in large numbers of ESCC cell lines, and NAC profoundly attenuated its antiproliferative activity. Time-lapse microscopy in ESCC cell line KYSE190 demonstrated that Ag5 increased DCFDA in 20 min and SYTOX in 60 min after the treatment, respectively, while combination treatment with NAC less detected these markers. Ag5-treated KYSE190 also exhibited necrosis-like morphology of swollen- and round-shape cells. In EM, damaged mitochondria and expanded endoplasmic reticulum were frequently observed in Ag5-treated KYSE190 cells. These data indicated that Ag5 induced ROS-mediated antiproliferation in ESCC cell lines. Conclusions: Ag5 exhibited ROS-mediated antiproliferative activities in large numbers of ESCC cell lines. Our preclinical results suggest the therapeutic potential of Ag5 as a novel cancer drug candidate for ESCC. Conflict of interest disclosure: AO is a part-time employee of Astellas Pharma Inc. from 2023 as a cross-appointment system. AO was an employee of Takeda Pharmaceutical Company, Ltd. AO reported paid consulting or advisory roles for Ono Pharmaceutical Company Ltd., Craif Inc., and GEXVal Inc. out of this study. AO receives research fundings from Astellas Pharma Inc., Astellas Pharma Global Development Inc., and Daiichi Sankyo Company, Ltd. out of this study. RB and MT are board members of Arjuna Therapeutics. Citation Format: Ryo Kamata, Toyohiro Yamauchi, Yuta Sakae, Ross Breckenridge, Martin Treder, Akihiro Ohashi. Novel low-atomic cluster Ag5 induced oxidative stress and antiproliferation in Esophageal Squamous Cell Carcinoma Cells [abstract]. In: Proceedings of the AACR-NCI-EORTC Virtual International Conference on Molecular Targets and Cancer Therapeutics; 2023 Oct 11-15; Boston, MA. Philadelphia (PA): AACR; Mol Cancer Ther 2023;22(12 Suppl):Abstract nr B148.

DAPagliflozin for the attenuation of albuminuria in Patients with hEaRt failure and type 2 diabetes (DAPPER study): a multicentre, randomised, open-label, parallel-group, standard treatment-controlled trial

Sodium-glucose cotransporter 2 (SGLT2) inhibitors reduce the urinary albumin-to-creatinine ratio (UACR) in patients with elevated levels of albuminuria in the presence or absence of heart failure (HF) or type 2 diabetes mellitus (T2D). However, these effects have not yet been reported in the presence of both HF and T2D. This lack of evidence prompted us to conduct a clinical trial on the effects of dapagliflozin on UACR in patients with HF and T2D. DAPPER is a multicentre, randomised, open-labeled, parallel-group, standard treatment-controlled trial that enrolled patients at 18 medical facilities in Japan. Eligible participants with both HF and T2D and aged between 20 and 85 years were randomly assigned to a dapagliflozin or control (anti-diabetic drugs other than SGLT 2 inhibitors) group with a 1:1 allocation. The primary outcome was changes in UACR from baseline after a two-year observation, and secondary endpoints were cardiovascular (CV) events and parameters related to HF. This trial was registered with the UMIN-CTR registry, UMIN000025102 and the Japan Registry of Clinical Trials, jRCTs051180135. Between 12 May 2017 and 31 March 2020, 294 patients were randomly assigned to the dapagliflozin group (n=146) or control group (n=148). The mean age of patients was 72.1 years and 29% were female. The mean glycated hemoglobin value was 6.9%, mean NT-proBNP was 429.1pg/mL, mean estimated GFR was 65.7mL/min/1.73m2, and median UACR was 25.0 (8.8-74.6) mg/g Cr in the dapagliflozin group and 25.6 (8.2-95.0) mg/g Cr in the control group. Of the 146 patients in the dapagliflozin group, 122 completed the study, and 107 (87.7%) were taking 5mg of dapagliflozin daily at the end of the observation period. The primary outcome did not significantly differ between the dapagliflozin and control groups. Among the secondary endpoints, the mean decrease in left ventricular end-diastolic dimensions as one of the echocardiographic parameters was larger in the dapagliflozin group than in the control group. The composite endpoint, defined as CV death or hospitalisation for CV events, hospitalisation for HF events, hospitalisation for all causes, and an additional change in prescriptions for heart failure in a two-year observation, was less frequent in the dapagliflozin group than in the control group. Although dapagliflozin at a dose of 5mg daily did not reduce urinary albumin excretion in patients with HF and T2D from that in the controls, our findings suggest that dapagliflozin decreased CV events and suppressed left ventricular remodeling. AstraZeneca KK, Ono Pharmaceutical Co., Ltd.

Nivolumab plus Gemcitabine–Cisplatin in Advanced Urothelial Carcinoma

BackgroundNo new agent has improved overall survival in patients with unresectable or metastatic urothelial carcinoma when added to first-line cisplatin-based chemotherapy.MethodsIn this phase 3, multinational, open-label trial, we randomly assigned patients with previously untreated unresectable or metastatic urothelial carcinoma either to receive intravenous nivolumab (at a dose of 360 mg) plus gemcitabine–cisplatin (nivolumab combination) every 3 weeks for up to six cycles, followed by nivolumab (at a dose of 480 mg) every 4 weeks for a maximum of 2 years, or to receive gemcitabine–cisplatin alone every 3 weeks for up to six cycles. The primary outcomes were overall and progression-free survival. The objective response and safety were exploratory outcomes.ResultsA total of 608 patients underwent randomization (304 to each group). At a median follow-up of 33.6 months, overall survival was longer with nivolumab-combination therapy than with gemcitabine–cisplatin alone (hazard ratio for death, 0.78; 95% confidence interval [CI], 0.63 to 0.96; P=0.02); the median survival was 21.7 months (95% CI, 18.6 to 26.4) as compared with 18.9 months (95% CI, 14.7 to 22.4), respectively. Progression-free survival was also longer with nivolumab-combination therapy than with gemcitabine–cisplatin alone (hazard ratio for progression or death, 0.72; 95% CI, 0.59 to 0.88; P=0.001). The median progression-free survival was 7.9 months and 7.6 months, respectively. At 12 months, progression-free survival was 34.2% and 21.8%, respectively. The overall objective response was 57.6% (complete response, 21.7%) with nivolumab-combination therapy and 43.1% (complete response, 11.8%) with gemcitabine–cisplatin alone. The median duration of complete response was 37.1 months with nivolumab-combination therapy and 13.2 months with gemcitabine–cisplatin alone. Grade 3 or higher adverse events occurred in 61.8% and 51.7% of the patients, respectively.ConclusionsCombination therapy with nivolumab plus gemcitabine–cisplatin resulted in significantly better outcomes in patients with previously untreated advanced urothelial carcinoma than gemcitabine–cisplatin alone. (Funded by Bristol Myers Squibb and Ono Pharmaceutical; CheckMate 901 ClinicalTrials.gov number, NCT03036098.)

1852-PUB: The Effect of Lactic Acid Fermented Sake Lees in a NASH-HCC Mouse Model

Nonalcoholic steatohepatitis (NASH) is a liver disease characterized by fatty liver and cirrhosis that van lead to hepatocellular carcinoma. Although NASH prevalence is increasing worldwide, no cure has yet been established. Sake-lees, which are a by-product of sake refinement, have liver-protecting properties. Lactic acid fermented sake lees (FSL) is a food made by lactic acid fermentation of lees, which are then dealcoholized. Although FSL is regarded as a pro-health supplement, whether it has hepatoprotective effects remains unclear. To address this, we used a murine model of NASH to determine whether FSL could suppress progression of the disease. FSL supplementation significantly suppressed the increase in blood glucose impeded the progression of NASH. Protein analysis revealed that FSL also attenuated the increased expression of inflammatory markers. We infer that dietary FSL has anti-inflammatory and anti-hyperglycemic effects that contribute to the inhibition of NASH progression. Disclosure H. Suzuki: None. K. Watanabe: None. S. Arumugam: None. M. Afrin: None. Y. Matsubayashi: None. H. Sone: Research Support; Novo Nordisk, Astellas Pharma Inc., Kyowa Kirin Co., Ltd., Taisho Pharmaceutical Holdings Co., Ltd., Ono Pharmaceutical Co., Ltd., Eisai Co., Ltd., Takeda Pharmaceutical Co., Ltd. Funding Japan Society for the Promotion of Science (22K17772)

1381-P: Effect of Dietary Potassium Intake and Its Interaction with Sodium Intake on Risk of Developing Cardiovascular Disease (CVD) in Persons with Type 2 Diabetes (T2D)—Japan Diabetes Complication and Its Prevention Prospective Study (JDCP Study)

Many guidelines recommend increased potassium intake. However, the relationship between dietary potassium intake and incidence of CVD in persons with T2D has not been explored, nor is it known if this relationship varies with sodium intake in such persons. Therefore, we investigated these relationships as part of the JDCP study, a nationwide study launched in 2007. A total of 1477 persons with T2D aged 40-75 years completed a brief self-administered Diet History Questionnaire at baseline, and resultant data were analyzed. Primary outcome was the 7-year risk of a CVD event. Hazard ratios (HRs) for CVD according to tertiles of dietary potassium and sodium intake were estimated by Cox regression adjusted for confounders in addition to a stratified analysis of tertiles of sodium intake. Mean daily potassium and sodium intakes in tertiles 1 to 3 were 1.9, 2.6, and 3.5 g and 3.3, 4.2, and 5.3 g, respectively. HbA1c, BMI, triglycerides, and blood pressure were well controlled. No significant associations between potassium and sodium intakes and incidence of CVD were shown for the second and third tertiles relative to the first tertile (potassium: 0.64 [95% CI, 0.34-1.23] and 0.59 [0.28-1.25]; sodium: 1.02 [0.51-2.04] and 1.15 [0.58-2.30]). In the stratified analysis of tertiles of sodium intake, in the high sodium intake groups (T2 and T3) HRs for CVD in the high potassium intake group were significantly lower compared to the low potassium intake group (T2: 0.40 [0.12-1.35] and 0.06 [0.01-0.69]; T3: 0.23 [0.07-0.82] and 0.26 [0.07-0.88]). Associations of potassium intake with CVD in those with low sodium intake (T1) were not significant. Findings suggested that high potassium intake under high sodium intake is associated with a deceased incidence of CVD in persons with T2D although potassium intake under low sodium intake was not associated with incident CVD. Disclosure C.Horikawa: None. H.Shimano: None. J.Satoh: None. Y.Hayashino: Advisory Panel; Novo Nordisk A/S, Ono Pharmaceutical Co., Ltd., Speaker's Bureau; Boehringer Ingelheim Japan, Inc., Sumitomo Dainippon Pharma Co., Ltd., Santen, Daiichi Sankyo, Kowa Company, Ltd. N.Tajima: None. R.Nishimura: Speaker's Bureau; Sanofi K.K., Medicure Inc., Boehringer Ingelheim Inc., Takeda Pharmaceutical Company Limited, Kissei Pharmaceutical Co., Ltd., Novartis Pharma K.K., Eli Lilly Japan K.K., Novo Nordisk, Merck &amp; Co., Inc., Abbott Japan Co., Ltd., Astellas Pharma Inc., Teijin Pharma Limited, Taisho Pharmaceutical Holdings Co., Ltd., Ono Pharmaceutical Co., Ltd., AstraZeneca. Y.Yamasaki: None. H.Sone: Research Support; Novo Nordisk, Astellas Pharma Inc., Kyowa Kirin Co., Ltd., Taisho Pharmaceutical Holdings Co., Ltd., Ono Pharmaceutical Co., Ltd., Eisai Co., Ltd., Takeda Pharmaceutical Co., Ltd. Jdcp study group: n/a. M.Takahara: None. N.Katakami: Speaker's Bureau; Abbott Japan Co., Ltd., Daiichi Sankyo, MSD, Mitsubishi Tanabe Pharma Corporation, Kowa Company, Ltd., Ono Pharmaceutical Co., Ltd., Novo Nordisk, Sumitomo Dainippon Pharma Co., Ltd., Bayer Inc., Lilly, Teijin Pharma Limited, Kyowa Kirin Co., Ltd., Boehringer Ingelheim Japan, Inc., Sanofi. Y.Takeda: None. M.Takeuchi: None. K.Fujihara: None. H.Suzuki: None. K.Tsuda: None. N.Yoshioka: None.

878-P: Absolute Amount of Urinary Glucose Excretion, Not the Change, Is the Measure Determinant for the Effects of SGLT2 inhibitors

SGLT2 inhibitors exhibit hypoglycemic effect via increased urinary glucose excretion (UGE) by inhibiting glucose reabsorption in the kidney. Although the effects of SGLT2 inhibitors are theoretically dependent on UGE, clinical trials have shown renoprotective effect even in severely impaired kidney function. Thus, we aimed to investigate the relationship between UGE and various parameters before and after the administration of SGLT2 inhibitors. The patients newly administered SGLT2 inhibitors and measured 24-hour UGE before and after the administration during hospitalization for diabetes education were included. Body weight (BW), blood ketone levels, hematocrit (Ht), eGFR, and 7-point SMBG (DBG) were measured, and the correlations between the parameters before(b-), after (a-) and the change (Δ-) were analyzed by simple linear regression. A total of 32 patients (age 59.3±10.9 years, 19 males) were included (empagliflozin 5, tohogliflozin 6, dapagliflozin 2, canagliflozin 4, luseogliflozin 15). The mean A1C and BW were 8.8±1.2% and 77.7±11.5kg, and mean UGE, average of DBG at baseline were 15.4 ± 27.5g/day and 10.3±2.0mM/L, respectively. As shown in table, ΔDBG showed correlation only with UGE before and after administration but not with ΔUGE. In conclusion, hypoglycemic effect of SGLT2 inhibitors is dependent on absolute amount of UGE but not on ΔUGE after administration. Disclosure Y.Hamamoto: None. Y.Yamada: Speaker's Bureau; Novo Nordisk Pharma Ltd., Teijin Pharma Limited, Ono Pharmaceutical Co., Ltd., Sumitomo Pharma Co., Ltd. Y.Seino: Research Support; Terumo Corporation, Nippon Boehringer Ingelheim, Arkray Marketing, Taisho Pharmaceutical Holdings Co., Ltd., Novo Nordisk, Ono Pharmaceutical Co., Ltd., Speaker's Bureau; Merck &amp; Co., Inc., Nippon Boehringer Ingelheim, Arkray Marketing, Taisho Pharmaceutical Holdings Co., Ltd., Novo Nordisk, Ono Pharmaceutical Co., Ltd.

748-P: GLP-1 Receptor Agonists Dulaglutide and Semaglutide in Japanese Patients with Type 2 Diabetes—Randomized, Parallel-Group, Multicenter, Open-Label Trial

The clinical usefulness of once weekly GLP-1 receptor agonists, dulaglutide (D) and semaglutide (S), on domestically approved doses in Japan, was assessed by the multicenter RCT to compare the efficacy, safety and patient satisfaction of D at a dose of 0.75mg and S at a dose of 0.25-1.0mg in patients with type 2 diabetes. The study protocol was approved by the IRB of Kawasaki Medical School (No.5276-01). A total 120 patients eligible for the criteria with HbA1c of 7% or more were randomly assigned to groups D and S (D:S = 59:61), and 107 subjects completed the trial for 24 weeks (D:S=53:54). Backgrounds of 107 subjects were age 62.7 ± 10.7 years, disease duration 13.9 ± 7.4 years, BMI 29.3 ± 5.9 kg/m2, HbA1c 8.0 ± 0.6%. There were no differences in these parameters between 2 groups. Dose of S was escalated by 4 weeks from 0.25mg to adequate dose for each, and average dose was 0.63±0.24mg. The primary endpoint was the difference of HbA1c level between 2 groups at 24 weeks. The HbA1c level at 24 weeks was significantly lower in S than D (D: 8.1±0.6→7.4±0.8 vs S: 7.9±0.5→ 6.7±0.5%, p&amp;lt;0.0001). Reduction in BMI and VFA levels were also more significant in S (D vs. S), BMI: 29.2→28.8 vs. 29.4→28.1 kg/m2, VFA: 174.5→164.6 vs. 175.8→153.2cm2, respectively (p&amp;lt; 0.05). The achievement rate of HbA1c &amp;lt;7% was higher in S (D vs S; 30.8% vs 70.4%, p&amp;lt;0.0001). The parameters such as LDL-C, ALT, γGTP, and apo B/A1 were decreased, and the L/S ratio was increased only in S. Compared the changes in L/S ratio less than 0.9 at baseline, which is diagnosed as NAFLD by CT, between two groups, the ratio was significantly elevated only in the S, but not in D at 24weeks. Gastrointestinal symptoms were observed in 13.2% of D and 46.3% of S (p&amp;lt;0.01). DTR-QoL scores related to pain and gastrointestinal symptoms were superior in D. This prospective trial demonstrated that S has more pronounced effects on glucose and BMI lowering, as well as a reduction in liver fat percentage and visceral fat area. Disclosure T. Kimura: Speaker's Bureau; Sanwa Kagaku Kenkyusho, Kowa Research Institute, Inc., Taisho Pharmaceutical Holdings Co., Ltd., Boehringer Ingelheim Japan, Inc., Sumitomo Dainippon Pharma Co., Ltd., Sanofi, MSD Life Science Foundation, Lilly, Daiichi Sankyo, Novo Nordisk. Y. Katakura: Speaker's Bureau; Abbott. M. Shimoda: Speaker's Bureau; Sanofi, Lilly, AstraZeneca, Ono Pharmaceutical Co., Ltd., Kowa Company, Ltd., Novo Nordisk, Sumitomo Dainippon Pharma Co., Ltd., Taisho Pharmaceutical Holdings Co., Ltd., MSD Life Science Foundation, Mitsubishi Tanabe Pharma Corporation. F. Kawasaki: None. M. Yamabe: Speaker's Bureau; Novo Nordisk, Eli Lilly Japan K.K., Abbott Japan Co., Ltd., Sanofi, Boehringer Ingelheim Japan, Inc., Kowa Company, Ltd., Ono Pharmaceutical Co., Ltd., Mitsubishi Tanabe Pharma Corporation, Sumitomo Dainippon Pharma Co., Ltd., Terumo Corporation. F. Tatsumi: Speaker's Bureau; Abbott Japan Co., Ltd., Kowa Company, Ltd., Novo Nordisk. M. Matsuki: None. Y. Iwamoto: Speaker's Bureau; Kowa Company, Ltd. T. Anno: None. Y. Fushimi: None. S. Kamei: None. Y. Kimura: None. J. Sanada: Speaker's Bureau; Lilly, Kowa Company, Ltd. Y. Hirata: None. S. Nakanishi: Speaker's Bureau; Boehringer Ingelheim Japan, Inc., Novo Nordisk, Sanofi, Taisho Pharmaceutical Holdings Co., Ltd., Ono Pharmaceutical Co., Ltd., Daiichi Sankyo, Kowa Company, Ltd., Abbott, Mitsubishi Tanabe Pharma Corporation. T. Mune: None. K. Kaku: Speaker's Bureau; Astellas Pharma Inc., Daiichi Sankyo, Eli Lilly Japan K.K., Boehringer Ingelheim Japan, Inc., Kowa Company, Ltd., Mitsubishi Tanabe Pharma Corporation. Advisory Panel; Novo Nordisk. Consultant; Sanwa Kagaku Kenkyusho. Speaker's Bureau; Taiho Pharmaceutical Co. Ltd., Takeda Pharmaceutical Co., Ltd. H. Kaneto: Research Support; Sumitomo Dainippon Pharma Co., Ltd., Taiho Pharmaceutical Co. Ltd., Boehringer Ingelheim Japan, Inc. Speaker's Bureau; Lilly, Sanofi, Boehringer Ingelheim Japan, Inc., Novo Nordisk, Sumitomo Dainippon Pharma Co., Ltd. Research Support; Abbott.

850-P: The Efficacy of Imeglimin in Diabetes Subgroups Stratified by Data-Driven Cluster Analysis—A Post Hoc Analysis of Imeglimin Clinical Trial Data

Objectives: We performed a post-hoc analysis of clinical trial data with the goal of investigating whether diabetic subgroups identified by data-driven clustering respond differently to imeglimin. Methods: Data from randomized, double-blind clinical trials of imeglimin as monotherapy or add-on to insulin therapy were included in the analysis. For monotherapy, 1) duration of type 2 diabetes, 2) baseline BMI, 3) baseline HbA1c, and 4) baseline HOMA-β, and for add-on to insulin therapy, the first three and 4) insulin total daily dose were applied as coordinates to form clusters by the non-hierarchical k-means method. The efficacy of imeglimin were examined for each cluster. Results: We identified four clusters of patients with diabetes, which had significantly different patient characteristics. Cluster 1 was a group with lower values of all four indices compared to the total patient population before cluster segregation, cluster 2 was a group with longer duration of diabetes, cluster 3 was a group with higher baseline BMI and higher HOMA-β (for monotherapy) or higher insulin total daily dose (for add-on to insulin therapy), and cluster 4 was a group with higher baseline HbA1c. The improvement in HbA1c with imeglimin differed significantly among the four clusters. The mean change differences versus placebo for imeglimin in monotherapy ranged from -0.64% to -1.27%, and add-on to insulin therapy ranged from -0.31% to -0.82%. In all clusters except for cluster 3 in the add-on to insulin therapy, imeglimin showed statistically significant HbA1c improvement compared to placebo. Conclusion: Data-driven clustering of patients with type 2 diabetes allowed us to identify subgroups that respond differently to imeglimin in improving HbA1c. This new stratification might help to tailor and target the imeglimin treatment to patients who would benefit most. Disclosure K.Hagi: Employee; Sumitomo Pharma. K.Kochi: Employee; Sumitomo Dainippon Pharma Co., Ltd., Sumitomo Pharma Co., Ltd. H.Watada: Research Support; Boehringer Ingelheim Japan, Inc., Mitsubishi Tanabe Pharma Corporation, LifeScan Diabetes Institute, Eli Lilly Japan K.K., Sun Pharmaceutical Industries Ltd., Teijin Pharma Limited, Taisho Pharmaceutical Holdings Co., Ltd., Ono Pharmaceutical Co., Ltd., Kowa Company, Ltd., Merck Sharp &amp; Dohme Corp., Sanwa Kagaku Kenkyusho, Speaker's Bureau; Mitsubishi Tanabe Pharma Corporation, Taiho Pharmaceutical Co. Ltd., Novo Nordisk, Abbott Japan Co., Ltd., Astellas Pharma Inc., Merck Sharp &amp; Dohme Corp., Kissei Pharmaceutical Co., Ltd., AstraZeneca, Ono Pharmaceutical Co., Ltd., Boehringer Ingelheim Japan, Inc., Sanofi, Sun Pharmaceutical Industries Ltd., Eli Lilly Japan K.K. K.Kaku: Advisory Panel; Novo Nordisk, Consultant; Sanwa Kagaku Kenkyusho, Speaker's Bureau; Astellas Pharma Inc., Daiichi Sankyo, Eli Lilly Japan K.K., Boehringer Ingelheim Japan, Inc., Kowa Company, Ltd., Mitsubishi Tanabe Pharma Corporation, Taiho Pharmaceutical Co. Ltd., Takeda Pharmaceutical Co., Ltd. K.Ueki: Advisory Panel; Abbott Japan Co., Ltd., Research Support; Abbott Japan Co., Ltd., Boehringer Ingelheim Japan, Inc., Eli Lilly Japan K.K., Sumitomo Dainippon Pharma Co., Ltd., Novo Nordisk, Sanofi K.K., MSD Life Science Foundation, Takeda Pharmaceutical Co., Ltd., Speaker's Bureau; Boehringer Ingelheim Japan, Inc., Eli Lilly Japan K.K., Astellas Pharma Inc., AstraZeneca, Sumitomo Dainippon Pharma Co., Ltd., Novo Nordisk, Taiho Pharmaceutical Co. Ltd., Kowa Company, Ltd., Mitsubishi Tanabe Pharma Corporation, Ono Pharmaceutical Co., Ltd.

1715-P: Osteopenic Obesity Is Associated with Small Vessel Disease in Old Adults—The Bunkyo Health Study

Obesity is one of the most important causes of metabolic disorders and cardiovascular events. Indeed, while the presence of cerebral small vessel disease (SVD) that includes silent brain infarcts, cerebral white matter lesions, and microhemorrhage increased the risk of stroke &amp;gt; 3-fold, and dementia &amp;gt; 2-fold, respectively, obesity has been identified as a risk factor for SVD. On the other hand, low bone mineral density (BMD), is also recognized as a risk factor for SVD. Whereas obesity is generally associated with high BMD, it has recently been reported that there is a special subtype of osteopenic obesity in which obesity and low BMD coexist. Thus, we hypothesized that this osteopenic obesity is at high risk for SVD. To test this hypothesis, we studied 1531 (641 male and 890 female) old adults aged 65 to 85 years without a history of stroke (Bunkyo Health Study). All subjects underwent dual-energy X-ray absorptiometry, brain MRI, and blood sampling, and they were classified into four groups according to the presence or absence of obesity and osteopenia (men) or osteoporosis (women) diagnosed by the BMD at the hip joint. The mean age of the subjects was 73.0 years. The prevalence of osteopenic obesity was 7.8% and 8.0% for men and women, respectively. While overall prevalence of SVD was 25% in men and 22% in women, the prevalence of SVD in osteopenic obesity was 46% and 42%, respectively. Logistic regression analysis revealed that odds ratio [95% CI] for SVD in control, obesity, osteopenia/osteoporosis and osteopenic obesity were 1.00, 1.203 [0.730-1.982], 0.970 [0.670-1.549] and 3.024 [1.560-5.861] in men and 1.00, 1.452 [0.818-2.575], 1.548 [1.012-2.368], 2.747 [1.489-5.069] in women, respectively. In conclusion, osteopenic obesity was independently associated with the presence of SVD in old adults without a history of stroke. Disclosure N.Ito: None. Y.Yoshizawa: None. H.Watada: Research Support; Boehringer Ingelheim Japan, Inc., Mitsubishi Tanabe Pharma Corporation, LifeScan Diabetes Institute, Eli Lilly Japan K.K., Sun Pharmaceutical Industries Ltd., Teijin Pharma Limited, Taisho Pharmaceutical Holdings Co., Ltd., Ono Pharmaceutical Co., Ltd., Kowa Company, Ltd., Merck Sharp &amp; Dohme Corp., Sanwa Kagaku Kenkyusho, Speaker's Bureau; Mitsubishi Tanabe Pharma Corporation, Taiho Pharmaceutical Co. Ltd., Novo Nordisk, Abbott Japan Co., Ltd., Astellas Pharma Inc., Merck Sharp &amp; Dohme Corp., Kissei Pharmaceutical Co., Ltd., AstraZeneca, Ono Pharmaceutical Co., Ltd., Boehringer Ingelheim Japan, Inc., Sanofi, Sun Pharmaceutical Industries Ltd., Eli Lilly Japan K.K. Y.Tamura: None. H.Kaga: None. Y.Someya: None. H.Tabata: None. S.Kakehi: None. M.Kiya: None. T.Tajima: None. H.Naito: None. Funding Strategic Research Foundation at Private Universities (S1411006); Ministry of Education, Culture, Sports, Science and Technology of Japan (18H03184); Mizuno Sports Promotion Foundation; Mitsui Life Social Welfare Foundation

886-P: Protective Effects of DPP-4 Inhibitor and SGLT2 Inhibitor on Pancreatic ß-Cell Function—Randomized, Parallel-Group, Multicenter, Open-Label Study (SECRETE-I)

Aims: Effects of DPP-4 inhibitor or SGLT2 inhibitor on human β-cell function are not well understood, and there is no report showing the difference between the two agents. The aim of this study is to compare the effects of these drugs on β-cell function in patients with type 2 diabetes. Methods: The study protocol was approved by the IRB of Kawasaki Medical School (No. jRCTs061190008). A total of 103 patients met the inclusion criteria (age; 20 to 79 years, HbA1c; ≥7.0% and &amp;lt;9.0%). Subjects were randomly assigned to luseogliflozin (L) group (n=49) or teneligliptin (T) group (n=54) and received 24 wks of intervention followed by 1-2 wks of drug washout. The primary endpoint was the change in log-transformed (Ln) disposition index (DI) 0-120 from baseline. Subjects underwent 75gOGTT before and after treatment. Results: The main baseline backgrounds of L and T groups were as follows; age: 60.8±11.1 vs. 62.6±11.2 years (p=0.4), diabetes duration: 10.1±7.9 vs. 9.2±7.6 years (p=0.6), BMI: 27.0±4.2 vs. 27.2±5.4 kg/m2 (p=0.8), HbA1c: 7.6±0.4 vs. 7.5±0.5 % (p=0.5), DI 0-120: 0.80±0.60 vs. 0.92±0.59 (p=0.1). HbA1c levels were significantly decreased in both groups, but the amount of change was greater in the T group (-0.2%, p=0.02). Body weight was significantly decreased only in the L group, with a group difference of -2.5 kg (p&amp;lt;0.001). Ln DI 0-120 were improved in both groups: -0.46±0.66 to -0.15±0.59 (p=0.01) in L group and -0.26±0.60 to -0.02±0.60 (p=0.003) in T group. The change in Ln serum proinsulin/CPR ratio, a marker of β-cell dysfunction, was reduced in L group (1.63±0.63 to 1.56±0.68, p=0.16), but rather increased in T group (1.70±0.75 to 1.90±0.51, p=0.01), with significant difference between the 2 groups (-0.27; p=0.004). Conclusion: Improvement effects on DI 0-120 were almost identical between luseogliflozin and teneligliptin. On the other hand, burden on β-cells was mitigated only in luseogliflozin group. Disclosure M.Shimoda: Speaker's Bureau; Sanofi, Lilly, AstraZeneca, Ono Pharmaceutical Co., Ltd., Kowa Company, Ltd., Novo Nordisk, Sumitomo Dainippon Pharma Co., Ltd., Taisho Pharmaceutical Holdings Co., Ltd., MSD Life Science Foundation, Mitsubishi Tanabe Pharma Corporation. A.Obata: None. T.Kimura: Speaker's Bureau; Sanwa Kagaku Kenkyusho, Kowa Research Institute, Inc., Taisho Pharmaceutical Holdings Co., Ltd., Boehringer Ingelheim Japan, Inc., Sumitomo Dainippon Pharma Co., Ltd., Sanofi, MSD Life Science Foundation, Lilly, Daiichi Sankyo, Novo Nordisk. F.Kawasaki: None. F.Tatsumi: Speaker's Bureau; Abbott Japan Co., Ltd., Kowa Company, Ltd., Novo Nordisk. S.Nakanishi: Speaker's Bureau; Boehringer Ingelheim Japan, Inc., Novo Nordisk, Sanofi, Taisho Pharmaceutical Holdings Co., Ltd., Ono Pharmaceutical Co., Ltd., Daiichi Sankyo, Kowa Company, Ltd., Abbott, Mitsubishi Tanabe Pharma Corporation. T.Mune: None. K.Kaku: Advisory Panel; Novo Nordisk, Consultant; Sanwa Kagaku Kenkyusho, Speaker's Bureau; Astellas Pharma Inc., Daiichi Sankyo, Eli Lilly Japan K.K., Boehringer Ingelheim Japan, Inc., Kowa Company, Ltd., Mitsubishi Tanabe Pharma Corporation, Taiho Pharmaceutical Co. Ltd., Takeda Pharmaceutical Co., Ltd. H.Kaneto: Research Support; Sumitomo Dainippon Pharma Co., Ltd., Taiho Pharmaceutical Co. Ltd., Boehringer Ingelheim Japan, Inc., Abbott, Speaker's Bureau; Lilly, Sanofi, Boehringer Ingelheim Japan, Inc., Novo Nordisk, Sumitomo Dainippon Pharma Co., Ltd. Y.Katakura: Speaker's Bureau; Abbott. M.Iwamoto: Speaker's Bureau; Mitsubishi Tanabe Pharma Corporation, Novo Nordisk, Boehringer Ingelheim Inc., Eli Lilly Japan K.K., Sumitomo Dainippon Pharma Co., Ltd. Y.Kimura: None. T.Anno: None. H.Isobe: None. Y.Iwamoto: Speaker's Bureau; Kowa Company, Ltd. Y.Fushimi: None. J.Sanada: Speaker's Bureau; Lilly, Kowa Company, Ltd. Funding Taisho Pharmaceutical Holdings Co., Ltd.

1216-P: Effects of Aging after Age 65 on Glucose Tolerance, Insulin Sensitivity, and ß-Cell Function in Japanese—The Bunkyo Health Study

The number of new-onset diabetes cases in elderly adults is on the rise, and it is particularly prominent in Japan in which the ageing rate is the highest in the world. With ageing, both insulin sensitivity and insulin secretion deteriorate, however, it remains unclear whether these factors are further exacerbated with ageing in persons older than 65 years. The purpose of this study was to determine age-related changes in glucose tolerance and its related factors in Japanese elderly adults after age 65. Here, we studied 1438 old adults who were not taking oral hypoglycemic agents and were not diagnosed with diabetes. All subjects were assessed for glucose tolerance, insulin sensitivity (Matsuda index and Adipo-IR (fasting insulin x fasting free fatty acid (FFA)) and β-cell function (insulinogenic index) by 75g oral glucose tolerance test (OGTT). We divided participants according to age (65-69 years (n=465), 70-74 years (n=422), 75-79 years (n=326), and 80-84 years (n=225)) and compared clinical characteristics by ANOVA and post-hoc analysis. The mean BMI of all subjects was normal range (22.7±3.0kg/m2). The prevalence of newly diagnosed diabetes increased with age (7.5%, 11.1%, 12.0%, 18.7%, respectively). Fasting plasma glucose, serum insulin levels and insulinogenic index were comparable among the groups; however, area under the curve (AUC)-glucose and AUC-insulin during the 75g OGTT were significantly higher and Matsuda index and disposition index were significantly lower in the 70-74, 75-79 and 80-84 years groups than in the 65-69 years group. Similarly, percent body fat, fasting FFA and Adipo-IR were significantly higher in the 75-79 and 80-84 years groups than in the 65-69 years group. In conclusion, ageing in Japanese after age 65 is associated with exacerbation of body fat accumulation, adipose tissue and systemic IR, which, combined with decreased β-cell compensatory function, leads to worsening glucose tolerance. Disclosure H.Naito: None. M.Sato: None. S.Kadowaki: None. T.Funayama: Speaker's Bureau; Daiichi Sankyo, Boehringer Ingelheim Japan, Inc., Novo Nordisk. H.Watada: Research Support; Boehringer Ingelheim Japan, Inc., Mitsubishi Tanabe Pharma Corporation, LifeScan Diabetes Institute, Eli Lilly Japan K.K., Sun Pharmaceutical Industries Ltd., Teijin Pharma Limited, Taisho Pharmaceutical Holdings Co., Ltd., Ono Pharmaceutical Co., Ltd., Kowa Company, Ltd., Merck Sharp &amp; Dohme Corp., Sanwa Kagaku Kenkyusho, Speaker's Bureau; Mitsubishi Tanabe Pharma Corporation, Taiho Pharmaceutical Co. Ltd., Novo Nordisk, Abbott Japan Co., Ltd., Astellas Pharma Inc., Merck Sharp &amp; Dohme Corp., Kissei Pharmaceutical Co., Ltd., AstraZeneca, Ono Pharmaceutical Co., Ltd., Boehringer Ingelheim Japan, Inc., Sanofi, Sun Pharmaceutical Industries Ltd., Eli Lilly Japan K.K. Y.Tamura: None. H.Kaga: None. Y.Someya: None. H.Tabata: None. S.Kakehi: None. Y.Yoshizawa: None. M.Kiya: None. T.Tajima: None. N.Ito: None. Funding Strategic Research Foundation at Private Universities (S1411006); Ministry of Education, Culture, Sports, Science and Technology of Japan (18H03184); Mizuno Sports Promotion Foundation; Mitsui Life Social Welfare Foundation

1730-P: Stochastic Differentiation of α-Cell Lineage Revealed by Single-Cell RNA Sequencing in Time-Resolved Reporter System

Pancreatic α cells have attracted attention for their plasticity to be transdifferentiated into β cells that could potentially cure diabetes. Although such findings highlight the need for better understanding of α-cell biology, it remains unclear how each α cell originates from endocrine progenitors. We have recently generated a new α-cell reporter mouse, “Gcg-Timer” in which newly generated α (early α) cells can be sorted by FACS separately from more differentiated α (late α) cells. We investigated transcriptional heterogeneity between early and late α cells by bulk RNA sequencing (RNA-seq). To further elucidate α-cell heterogeneity at single-cell resolution, we sorted early and late α cells by FACS from E17.5 Gcg-Timer embryos, and performed single-cell RNA sequencing (scRNA-seq). Consistent with the results of bulk RNA-seq, violin plot analysis demonstrated that the mRNA expression levels of Ins1, Ins2, and Sst were significantly higher in early α cells than in late α cells. Surprisingly, pseudotime analysis demonstrated that the clusters of early α cells overlapped with those of late α cells, which means that the fluorescent reporter-based α-cell maturation does not reflect transcriptional maturation, which is in contrast with our recent finding that the fluorescent reporter-based β-cell maturation reflects transcriptional maturation based on scRNA-seq in “Ins1-eGFP;Timer” embryo. This unexpected finding suggests two possibilities: [1] each α cell stochastically originates from the endocrine progenitor pool, or [2] early α cells get differentiated in a stochastic manner. Thus, differentiation in α-cell lineage appears to be different from sequential differentiation in β-cell lineage, as we and others have demonstrated. Disclosure N.Shimizu: None. S.Sasaki: None. T.Taguchi: None. M.Himuro: Research Support; Japan Diabetes Society Junior Scientist Development Grant, Japan Society for the Promotion of Science. H.Watada: Research Support; Boehringer Ingelheim Japan, Inc., Mitsubishi Tanabe Pharma Corporation, LifeScan Diabetes Institute, Eli Lilly Japan K.K., Sun Pharmaceutical Industries Ltd., Teijin Pharma Limited, Taisho Pharmaceutical Holdings Co., Ltd., Ono Pharmaceutical Co., Ltd., Kowa Company, Ltd., Merck Sharp &amp; Dohme Corp., Sanwa Kagaku Kenkyusho, Speaker's Bureau; Mitsubishi Tanabe Pharma Corporation, Taiho Pharmaceutical Co. Ltd., Novo Nordisk, Abbott Japan Co., Ltd., Astellas Pharma Inc., Merck Sharp &amp; Dohme Corp., Kissei Pharmaceutical Co., Ltd., AstraZeneca, Ono Pharmaceutical Co., Ltd., Boehringer Ingelheim Japan, Inc., Sanofi, Sun Pharmaceutical Industries Ltd., Eli Lilly Japan K.K. F.C.Lynn: None. T.Miyatsuka: Speaker's Bureau; Eli Lilly Japan K.K., Novo Nordisk, Sanofi K.K., Mitsubishi Tanabe Pharma Corporation, Sumitomo Dainippon Pharma Co., Ltd., Teijin Pharma Limited, Sanwa Kagaku Kenkyusho, Daiichi Sankyo. Funding Japan Society for the Promotion of Science (21K16345, 20K08895, 19H04060); Japan Insulin-Dependent Diabetes Mellitus Network

1736-P: Effect of Glucokinase Haploinsufficiency on Pancreatic Beta-Cell Function and Mass in High-Fat, High-Sucrose Diet-Fed Mice

Background and Aim: We previously found in db/db mice that glucokinase haploinsufficiency reduces excessive glucose signaling in beta-cells and optimizes intracellular metabolic patterns, thereby preserving pancreatic beta-cell function and mass, ultimately improving glucose tolerance. In the present study, we investigated the effect of glucokinase haploinsufficiency on beta-cell function and mass in high-fat, high-sucrose diet (HFHS)-fed mice. Method: Four-week-old male wild-type (Gck+/+) and glucokinase haploinsufficient (Gck+/−) mice were fed normal chow (NC) or HFHS. Blood glucose levels were measured, and glucose tolerance, glucose-stimulated insulin secretion (GSIS), and pancreatic beta-cell mass were evaluated over time (16, 40, and 60 weeks of age). Results: At 16 weeks of age, no difference was found in glucose tolerance between NC and HFHS feeding in both Gck+/+ and Gck+/− mice. At 40 weeks of age, Gck+/+ HFHS-fed mice exhibited increases in GSIS and beta-cell mass versus Gck+/+ NC-fed mice (7.0 ± 1.2 mg vs. 3.3 ± 1.6 mg; P &amp;lt; 0.01), and glucose tolerance was preserved. Conversely, Gck+/− HFHS-fed mice displayed no increase in beta-cell mass (4.1 ± 0.5 mg vs. 3.9 ± 1.5 mg), a slight increase in GSIS, and worsening of glucose tolerance compared with Gck+/− NC-fed mice. At 60 weeks of age, Gck+/+ HFHS-fed mice displayed further increases in beta-cell mass (14.7 ± 2.0 mg) and GSIS with no worsening of glucose tolerance. In Gck+/− HFHS-fed mice, beta-cell mass (5.5 ± 1.4 mg) and GSIS were partially increased, and no further worsening of glucose tolerance was observed after 40 weeks of age. Conclusion: Gck+/− mice fed HFHS displayed insufficient increases in beta-cell mass and GSIS, resulting in worsening of glucose tolerance. In the longer term, however, these mice did not exhibit subsequent declines in beta-cell mass and GSIS nor progressive worsening of glucose tolerance unlike the non-compensatory phase in people with type 2 diabetes. Disclosure I.Shigesawa: None. T.Atsumi: Speaker's Bureau; Eli Lilly Japan K.K., Kowa Company, Ltd. A.Nakamura: Research Support; Abbott Japan Co., Ltd., Boehringer Ingelheim Japan, Inc., Daiichi Sankyo, Taisho Pharmaceutical Holdings Co., Ltd., Teijin Pharma Limited, Kowa Company, Ltd., Mitsubishi Tanabe Pharma Corporation. Y.Yamauchi: None. S.Kawata: None. A.Miyazaki: None. H.Nomoto: Speaker's Bureau; Novo Nordisk, Sumitomo Pharma, Co., Ltd. H.Kameda: None. H.Miyoshi: Research Support; Abbott, LifeScan Diabetes Institute, Taisho Pharmaceutical Holdings Co., Ltd., Speaker's Bureau; AstraZeneca, Boehringer Ingelheim Japan, Inc., Eli Lilly Japan K.K., Kowa Company, Ltd., MSD Life Science Foundation, Novo Nordisk, Ono Pharmaceutical Co., Ltd., Sanofi K.K., Mitsubishi Tanabe Pharma Corporation. Y.Terauchi: Advisory Panel; Novo Nordisk, Eli Lilly Japan K.K., Sanofi, AstraZeneca, MSD Life Science Foundation, Consultant; Astellas Pharma Inc., Research Support; Abbott Japan Co., Ltd., Boehringer Ingelheim Japan, Inc., Mitsubishi Tanabe Pharma Corporation, Daiichi Sankyo, Novo Nordisk, Eli Lilly Japan K.K., Sanofi, Sumitomo Dainippon Pharma Co., Ltd., Kyowa Kirin Co., Ltd., Speaker's Bureau; Kowa Company, Ltd., Merck Sharp &amp; Dohme Corp., Ono Pharmaceutical Co., Ltd., Abbott Japan Co., Ltd., Boehringer Ingelheim Japan, Inc., Novartis Pharmaceuticals Corporation, Mitsubishi Tanabe Pharma Corporation, Daiichi Sankyo, Sanwa Kagaku Kenkyusho, Novo Nordisk, Eli Lilly Japan K.K., Sanofi, Sumitomo Dainippon Pharma Co., Ltd., Astellas Pharma Inc., AstraZeneca, Taisho Pharmaceutical Holdings Co., Ltd., Medtronic, Teijin Pharma Limited, Roche Diagnostics, LifeScan Diabetes Institute, Terumo Corporation, Bayer Inc., Eisai Co., Ltd., Takeda Pharmaceutical Co., Ltd., Kyowa Kirin Co., Ltd.

896-P: Effectiveness of Newly Prescribed SGLT2 Inhibitors as Second-Line Therapy following DPP-4 Inhibitors or Metformin as First-Line Therapy in Type 2 Diabetes Patients

Prescriptions of SGLT2 inhibitors (SGLT2i) for patients with type 2 diabetes (T2DM) are increasing. In this study real-world data were used to evaluate the long-term benefits of SGLT2i as a second-line drug for glycemic control in people with T2DM being treated with DPP-4 inhibitor (DPP4i) or metformin (MET) monotherapy. People with T2DM patients on DPP4i or MET monotherapy were followed for at least 12 months after receiving a new SGLT2i prescription. Patients were divided into DPP4i and MET groups, and patient background factors were controlled for using propensity score matching (PM). Changes in HbA1c and other indexes during the 12 months after the new prescription were compared using t-tests, and the factors affecting changes in HbA1c were examined using multiple regression analysis. After PM, there were 192 patients in the DPP4i (n=96) and MET (n=96) groups, with no significant differences in patient backgrounds. HbA1c levels 12 months after a new SGLT2i prescription were significantly lower in both groups compared to base line (8.1% to 7.0%, p&amp;lt;0.001; 8.1% to 7.1%, p&amp;lt;0.001), but there were no significant differences between the two groups in the change in HbA1c level (p=0.271), body weight (p=0.371), systolic blood pressure (p=0.828), eGFR (p=0.642), and Fib-4 index (p=0.674). The change in HbA1c was greater for those with initially higher HbA1c levels (-0.629 [-0.722-0.536], p&amp;lt;0.001) and those with shorter diabetes histories (0.024 [0.001-0.048], p=0.044), but it was not significantly different between the two groups (p=0.236). After controlling for patient background, there was no significant difference in the long-term effects of a new SGLT2i prescription between those previously receiving either DPP4i or MET monotherapy, but higher previous HbA1c levels and a shorter diabetes history may be prediction of better HbA1c 12 months after a new SGLT2i prescription, regardless of prior medication. Disclosure H.Takahashi: Speaker's Bureau; Eli Lilly Japan K.K., Boehringer Ingelheim Japan, Inc., Medtronic, Novo Nordisk. Y.Suganuma: None. T.Ohno: None. R.Nishimura: Speaker's Bureau; Sanofi K.K., Medicure Inc., Boehringer Ingelheim Inc., Takeda Pharmaceutical Company Limited, Kissei Pharmaceutical Co., Ltd., Novartis Pharma K.K., Eli Lilly Japan K.K., Novo Nordisk, Merck &amp; Co., Inc., Abbott Japan Co., Ltd., Astellas Pharma Inc., Teijin Pharma Limited, Taisho Pharmaceutical Holdings Co., Ltd., Ono Pharmaceutical Co., Ltd., AstraZeneca.

1604-P: DPP-4 Inhibitor and SGLT2 Inhibitor Additively Ameliorate Hepatic Steatosis in NAFLD Model Mice through Different Action Mechanisms

Nonalcoholic fatty liver disease (NAFLD) is closely associated with the development and pathogenesis of type 2 diabetes mellitus (T2DM). Luseogliflozin (Luseo) has been reported to improve NAFLD in T2DM model mice by affecting factors related to fatty acid synthesis and beta oxidation. Anagliptin (Ana) improves NAFLD in mice by altering the M1/M2 macrophage ratio. The aim of this study is to assess the molecular mechanisms of DPP4 and SGLT2 inhibitors, which are often used in combination clinically, on NAFLD. Six-week-old male C57BL/6J mice were fed a high fat diet (HFD) to create a diet-induced NAFLD model, and at 14 weeks of age, the mice were divided into 4 groups: control, Luseo (15 mg/kg/day: mixed diet), Ana (300 mg/kg/day: mixed water), and combination group. After the 4 weeks intervention, various metabolic parameters were evaluated. In addition, the expression of mRNAs was analyzed by qPCR. Luseo and combination groups showed a significant reduction in body weight. HE and Oil-Red-O staining demonstrated an improvement of hepatocyte ballooning and decreased fat staining area in the combination compared to the control. Liver qPCR showed that the expression levels of genes related to lipid synthesis and glycogenesis such as SCD1 and PEPCK in Luseo were decreased and inflammatory response such as IL6 were decreased in Ana. The expression levels of chemokine-related genes including CCL3, CCL4, and CCL5 were also decreased in Ana. Those findings observed in Luseo and Ana groups were also confirmed in the combination. In summary, Luseo improved lipid synthesis and glycogenesis in addition to body weight reduction, and reduced inflammation-related factors, while Ana suppressed inflammatory cytokines and chemokine-related pathways. Combination of two drugs markedly ameliorated hepatocyte fat deposition. Thus, it is likely that both DPP-4 inhibitor and SGLT2 inhibitor contributed to the improvement of NAFLD through different action mechanisms. Disclosure Y. Iwamoto: Speaker's Bureau; Kowa Company, Ltd. T. Kimura: Speaker's Bureau; Sanwa Kagaku Kenkyusho, Kowa Research Institute, Inc., Taisho Pharmaceutical Holdings Co., Ltd., Boehringer Ingelheim Japan, Inc., Sumitomo Dainippon Pharma Co., Ltd., Sanofi, MSD Life Science Foundation, Lilly, Daiichi Sankyo, Novo Nordisk. H. Iwamoto: None. Y. Fushimi: None. J. Sanada: Speaker's Bureau; Lilly, Kowa Company, Ltd. Y. Katakura: Speaker's Bureau; Abbott. M. Shimoda: Speaker's Bureau; Sanofi, Lilly, AstraZeneca, Ono Pharmaceutical Co., Ltd., Kowa Company, Ltd., Novo Nordisk, Sumitomo Dainippon Pharma Co., Ltd., Taisho Pharmaceutical Holdings Co., Ltd., MSD Life Science Foundation, Mitsubishi Tanabe Pharma Corporation. T. Mune: None. K. Kaku: Speaker's Bureau; Astellas Pharma Inc., Daiichi Sankyo, Eli Lilly Japan K.K., Boehringer Ingelheim Japan, Inc., Kowa Company, Ltd., Mitsubishi Tanabe Pharma Corporation. Advisory Panel; Novo Nordisk. Consultant; Sanwa Kagaku Kenkyusho. Speaker's Bureau; Taiho Pharmaceutical Co. Ltd., Takeda Pharmaceutical Co., Ltd. H. Kaneto: Research Support; Sumitomo Dainippon Pharma Co., Ltd., Taiho Pharmaceutical Co. Ltd., Boehringer Ingelheim Japan, Inc. Speaker's Bureau; Lilly, Sanofi, Boehringer Ingelheim Japan, Inc., Novo Nordisk, Sumitomo Dainippon Pharma Co., Ltd. Research Support; Abbott.