Dapagliflozin: BMS 512148; BMS-512148.
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PROVIDER: S-EPMC3586122 | biostudies-literature |
REPOSITORIES: biostudies-literature
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Project description:Methanosphaera sp. BMS Genome sequencing and assembly
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Project description:The HIV-1 envelope (Env) spike is a conformational machine that transitions between prefusion (closed, CD4- and CCR5-bound) and postfusion states to facilitate HIV-1 entry into cells. Although the prefusion closed conformation is a potential target for inhibition, development of small-molecule leads has been stymied by difficulties in obtaining structural information. Here, we report crystal structures at 3.8-Å resolution of an HIV-1-Env trimer with BMS-378806 and a derivative BMS-626529 for which a prodrug version is currently in Phase III clinical trials. Both lead candidates recognized an induced binding pocket that was mostly excluded from solvent and comprised of Env elements from a conserved helix and the β20-21 hairpin. In both structures, the β20-21 region assumed a conformation distinct from prefusion-closed and CD4-bound states. Together with biophysical and antigenicity characterizations, the structures illuminate the allosteric and competitive mechanisms by which these small-molecule leads inhibit CD4-induced structural changes in Env.
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Project description:Gene expression profile of BMS-470539 on human synovial fibroblasts.
2019-12-16 | GSE98658 | GEO
Project description:Priestia megaterium strain:BMS Genome sequencing and assembly
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Project description:ObjectiveSmall molecule inhibitors able to bind to gp120 and prevent CD4+-induced HIV-1 envelope conformational change provide an important class of inhibitors. Currently, only Fostemsavir is approved for HAART, which makes this class of inhibitors attractive candidates for prevention. We assessed the activity of DS003 (BMS-599793), an analogue of BMS-378806, in different mucosal tissues and elucidated its mechanism of action.DesignPreclinical analysis was performed with human mucosal tissue models as surrogates of in-vivo activity.MethodsAntiviral efficacy of DS003 was assessed in mucosal tissue explants (ecto-cervical, penile and colorectal) and in trans-infection models (co-cultures of dendritic or mucosal migratory cells with CD4+ T cells) with several dosing times (2, 24 h and sustained) and in combination with a fusion inhibitor. Binding of DS003 to gp120 was assessed by flow cytometry and bio-layer interferometry and further probed in competitive studies using soluble CD4+ (sCD4+) and an anti-CD4+ induced antibody, 17b.ResultsIn all models, the inhibitory activity of DS003 was increased with longer periods of exposure and by combination with a fusion inhibitor. Pre-exposure to sCD4+ impeded DS003 binding to viral envelope. In contrast, DS003 did not impact subsequent binding of sCD4+. Furthermore, sCD4+-induced epitope exposure as assessed by 17b binding was significantly reduced in the presence of DS003.ConclusionDS003 inhibits HIV-1 infection by binding to or near the CD4+ binding site of gp120, preventing CD4+-induced conformational change essential for viral fusion. These data highlight the potential of DS003 for development as a pre-exposure prophylaxis candidate.
| S-EPMC8416713 | biostudies-literature
Project description:BMS-663068 is the phosphonooxymethyl prodrug of BMS-626529, a novel small-molecule attachment inhibitor that targets HIV-1 gp120 and prevents its binding to CD4(+) T cells. The activity of BMS-626529 is virus dependent, due to heterogeneity within gp120. In order to better understand the anti-HIV-1 spectrum of BMS-626529 against HIV-1, in vitro activities against a wide variety of laboratory strains and clinical isolates were determined. BMS-626529 had half-maximal effective concentration (EC(50)) values of <10 nM against the vast majority of viral isolates; however, susceptibility varied by >6 log(10), with half-maximal effective concentration values in the low pM range against the most susceptible viruses. The in vitro antiviral activity of BMS-626529 was generally not associated with either tropism or subtype, with few exceptions. Measurement of the binding affinity of BMS-626529 for purified gp120 suggests that a contributory factor to its inhibitory potency may be a relatively long dissociative half-life. Finally, in two-drug combination studies, BMS-626529 demonstrated additive or synergistic interactions with antiretroviral drugs of different mechanistic classes. These results suggest that BMS-626529 should be active against the majority of HIV-1 viruses and support the continued clinical development of the compound.
| S-EPMC3393465 | biostudies-literature
Project description:BackgroundDapagliflozin formate (DAP-FOR, DA-2811), an ester prodrug of dapagliflozin, was developed to improve the stability and pharmaceutical manufacturing process of dapagliflozin, a sodium-glucose cotransporter-2 inhibitor.PurposeThis study aimed to evaluate the pharmacokinetics (PKs) and safety of dapagliflozin for DAP-FOR compared to those for dapagliflozin propanediol monohydrate (DAP-PDH, Forxiga) in healthy subjects.MethodsThis was an open-label, randomized, single-dose, two-period, two-sequence crossover study. The subjects received a single dose of DAP-FOR or DAP-PDH 10 mg in each period, with a 7-day washout. Serial blood samples for PK analysis were collected up to 48 hours after a single administration to determine plasma concentrations of DAP-FOR and dapagliflozin. PK parameters were calculated using a non-compartmental method and compared between the two drugs.ResultsIn total, 28 subjects completed the study. DAP-FOR plasma concentrations were not detected in all of the blood sampling time points except for one time point in one subject, and the corresponding DAP-FOR plasma concentration in the subject was close to the lower limit of quantification. The mean plasma concentration-time profiles of dapagliflozin were comparable between the two drugs. The geometric mean ratios and its 90% confidence intervals of the maximum plasma concentration and area under the plasma concentration-time curve of dapagliflozin for DAP-FOR to DAP-PDH were within the conventional bioequivalence range of 0.80-1.25. Both drugs were well-tolerated, with a similar incidence of adverse drug reactions.ConclusionThe rapid conversion of DAP-FOR into dapagliflozin led to the extremely low exposure of DAP-FOR and comparable PK profiles of dapagliflozin between DAP-FOR and DAP-PDH. The safety profiles were also similar between the two drugs. These results suggest that DAP-FOR can be used as an alternative to DAP-PDH.
| S-EPMC10128151 | biostudies-literature
Project description:IntroductionSodium glucose co-transporter 2 (SGLT2) inhibitors, such as dapagliflozin, have demonstrated favorable effects in patients with type 2 diabetes (T2D). However, there are limited reports in the literature regarding the glucose-lowering effects of SGLT2 inhibitors in actual clinical settings.MethodsThe post-marketing surveillance data from a longitudinal prospective study of 2007 patients with T2D who were prescribed dapagliflozin (10 mg/day) were analyzed (ClinicalTrials.gov, NCT02252224).ResultsAfter 12 weeks of dapagliflozin treatment, glycated hemoglobin (HbA1c) and body mass index were significantly decreased (P < 0.001) from 8.1 ± 1.3% to 7.5 ± 1.2% and from 28.1 ± 4.4 to 27.6 ± 4.2 kg/m2, respectively. Both body weight and HbA1c were reduced in 67.7% of patients, and HbA1c was lowered in 75.1%. Younger age, male sex, shorter diabetes duration, higher baseline HbA1c and estimated glomerular filtration rate (eGFR), and having dapagliflozin as add-on therapy were associated with stronger HbA1c reductions after dapagliflozin use (all P < 0.05). Moreover, subgroup analysis of eGFR of subjects with renal hyperfiltration (eGFR ≥ 120 ml/min/1.73 m2) showed the largest reduction in glucose level (% change, - 9.5; 95% CI - 6.8 to - 12.3 for HbA1c; P < 0.001). Multivariable logistic regression analysis showed that recent T2D diagnosis and higher HbA1c at baseline in patients who received an add-on regimen of dapagliflozin were statistically significantly associated with a dapagliflozin response (all P < 0.05).ConclusionsDapagliflozin provides benefits for glycemic control and body weight. Patients in a relatively early stage of the course of diabetes with renal hyperfiltration might be more suitable for and gain maximal benefit from dapagliflozin treatment.Trial registrationClinicalTrials.gov identifier, NCT02252224.FundingAstraZeneca.
| S-EPMC6064582 | biostudies-literature
Project description:Controlling excessive osteoclastic activity is a promising strategy for many bone disease treatments. Here we report that 10 μM BMS-582949, a clinical p38α inhibitor,dromatically suppresses the osteoclast differentiation in vitro. Our results provide a evidence that BMS-582949 could be a candicdate drug for the therapy of osteolytic diseases.
2024-02-29 | GSE249860 | GEO
Project description:The "Notch-sparing" ?-secretase inhibitor (GSI) BMS-708,163 (Avagacestat) is currently in phase II clinical trials for Alzheimer's disease. Unlike previously failed GSIs, BMS-708,163 is considered to be a promising drug candidate because of its reported Notch-sparing activity for the inhibition of A? production over Notch cleavage. We now report that BMS-708,163 binds directly to the presenilin-1 N-terminal fragment and that binding can be challenged by other pan-GSIs, but not by ?-secretase modulators. Furthermore, BMS-708,163 blocks the binding of four different active site-directed GSI photoaffinity probes. We therefore report that this compound acts as a nonselective ?-secretase inhibitor.
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