No - no cure

Really good combination insulin pumps or pods driven by Continuous Glucose Monitors but that is as good as it gets

It is an Auto-Immune disease and when it hits it totally destroys the pancreas ability to produce insulin - there is no treatment or cure to restore any function at all

Unless there is a breakthrough it IS a lifetime disease that will require insulin replacement therapy forever

In type 1 diabetes the pancreas doesn't produce insulin so insulin had to be injected. Insulin is needed to get glucose into the cells. It can be well managed but not cured.