Abstract
Purpose of Review
With recent advances in the pharmacological management of type 2 diabetes mellitus (T2DM), there is a growing need to understand which patients optimally benefit from these novel therapies. Various clinical clustering methodologies have emerged that utilise data-agnostic strategies to categorise patients that have similar clinical characteristics and outcomes; broadly, this characterisation is termed phenotyping. In patients with T2DM, we aimed to describe patient characteristics from phenotype studies, their cardiovascular risk profiles and the impact of antihyperglycemic treatment.
Recent Findings
Numerous phenotypic studies have been undertaken that have utilised a combination of clinical, biochemical, imaging and genetic variables. Each of these has produced phenotypes that display a spectrum of cardiovascular risk. Studies that aimed to describe pathophysiological phenotypes generally identified five phenotypes: autoimmune phenotype, insulin-related phenotypes (including permutations of insulin deficiency and resistance), obesity phenotype, ageing phenotype, and a sex-related phenotype. Studies examining risk profiles have demonstrated that across such phenotypes there is a spectrum of risk for diabetic complications. Few studies have examined treatment effects across these phenotypes, and thus provide little insights towards making phenotype-guided treatment decisions
Summary
Clustering analyses in patients with T2DM have identified distinct phenotypes with unique risk profiles. Further studies are needed that harness the use of clinical, biochemical, imaging and genetic data to explore therapeutic heterogeneity and response to antihyperglycemic treatment across the spectrum of patient phenotypes.
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PG, SZ, TP, VR, JE, NG and RL report no disclosures or conflicts of interest. MF has no disclosures to report in relation to this work but is supported by NHLBI K23HL151744 from the National Heart, Lung, and Blood Institute (NHLBI), the American Heart Association grant No 20IPA35310955, Mario Family Award, Duke Chair’s Award, Translating Duke Health Award, Bayer and BTG Specialty Pharmaceuticals. He receives consulting fees from Axon Therapies, Bodyport, CVRx, Daxor, Edwards LifeSciences, Fire1, NXT Biomedical, Zoll and VisCardia. MT reports no disclosures in relation to this work but has received speaker honoraria from NovoNordisk, Eli Lilly, Boehringer-Ingelheim and AstraZeneca. TAM has received honoraria from Daiichi Sankyo and Bristol Myers Squibb Canada outside the submitted work and salary support from the Department of Medicine at McGill University. AS reports receiving support from the Fonds de Recherche Santé Quebec (FRSQ) Junior 1 clinician scholars programme, Alberta Innovates Health Solution, European Society of Cardiology young investigator grant, Roche Diagnostics, Boehringer-Ingelheim, Novartis and Takeda.
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Gouda, P., Zheng, S., Peters, T. et al. Clinical Phenotypes in Patients With Type 2 Diabetes Mellitus: Characteristics, Cardiovascular Outcomes and Treatment Strategies. Curr Heart Fail Rep 18, 253–263 (2021). https://doi.org/10.1007/s11897-021-00527-w
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DOI: https://doi.org/10.1007/s11897-021-00527-w