In comparison to 72% of patients who received placebo, 45% of those who received teplizumab-mzwv (Tzield, Provention Bio) over the course of a median follow-up of 51 months were found to have stage 3 type 1 diabetes. Teplizumab-mzwv appeared to delay the onset of type 1 diabetes by about two years, as the median time from randomization to diagnosis of stage 3 diabetes was 50 months in the teplizumab-mzwv group and 25 months in the placebo group.