Breakthrough drug significantly delays onset of type 1 diabetes, study finds

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Emily Sims, M.D. today shared new findings that a breakthrough drug significantly delays the onset of type 1 diabetes (T1D).

The data presented at the American Diabetes Association (ADA)'s 80th Scientific Sessions details the Phase 2 Teplizumab Prevention Study Clinical Trial findings that showed a two-week course of teplizumab delayed the onset of clinical T1D by three years as compared to those taking a placebo.

These results add another year to the average time reported to reach insulin dependence in teplizumab treated subjects compared to placebo treated controls. The primary results of this trial, led by Kevan C. Herold, M.D. and colleagues, were presented at the 2019 ADA conference and published in the New England Journal of Medicine demonstrating a two year delay in T1D onset for those using the drug.

In ongoing analysis of trial data, Sims and colleagues found that subjects treated with teplizumab had higher rates of insulin secretion and C-peptide levels than those taking a placebo, indicating a change in the normal progression of T1D. Study participants taking a placebo showed no change since last year's reporting in the median time to clinical diagnosis of T1D during this follow-up period and maintained a decline in insulin and C-peptide production, which is consistent with beta-cell destruction caused by the disease. The trial involved individuals at high risk of developing T1D, based on the presence of two or more autoantibodies, which are detected through a screening blood test.

We are excited and hopeful about what the newly released trial results mean for the type 1 diabetes community. This is the first disease-modifying drug with data showing a long-term delay to insulin dependence. This is a major milestone in the global effort to comprehensively understand T1D and support the advancement towards prevention and cures for this disease."

Aaron J. Kowalski, Ph.D., President, and CEO of JDRF

The study was conducted by TrialNet, a clinical trial network focused on T1D prevention, and funded the National Institute of Diabetes and Digestive and Kidney Diseases, primarily through the Special Diabetes Program. Provention Bio provided study drugs and additional site monitoring.

In 2019 the U.S. Food and Drug Administration (FDA) granted Breakthrough Therapy Designation and the European Medicines Agency (EMA) granted PRIority MEdicines (PRIME) designation to teplizumab, for the prevention or delay of T1D in individuals at-risk of developing the disease. CD3 is a blood marker that helps to activate the immune cells--called T cells--which are thought to be responsible for the disease. Type 1 diabetes, a life-long autoimmune disease, affects nearly 1.6 million Americans and 18 million people globally.

JDRF, the leading global organization funding T1D research, has supported the research of teplizumab for many years, including studies that have informed the mechanistic analysis ongoing with teplizumab trial samples. In 2017, the JDRF T1D Fund made an equity investment in Provention Bio, which is developing teplizumab for the prevention or delay of T1D.



The opinions expressed here are the views of the writer and do not necessarily reflect the views and opinions of News Medical.
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