glp-1 agonists in development Glucagon-like peptide-1 receptor: mechanisms and advances therapy Frontiers | GLP-1 Receptor Agonists:
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This impending patent cliff is a material headwind for Novo Nordisk, but price reductions will drive a substantial uplift in the volume of patients on injectable semaglutide, through preferential reimbursement (by state or PMI payors) and improved affordability for the self-pay segment

doi: 10.3389/fimmu.2016.00154 92 FriedrichMDiegelmannJSchauberJAuernhammerCJBrandS

Borlaug BA, Kitzman DW, Davies MJ, Rasmussen S, Barros E, Butler J, et al

Ferhatbegovic L, Mrsic D, Macic-Dzankovic A

That result is encouraging, but it was observational, so it shows an association rather than proof of prevention

This may be partly mediated by improvements in weight loss and glucose control
