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FDA approves expanded use of Sanofi’s type 1 diabetes drug

By Thomson Reuters Jun 12, 2026 | 4:18 PM

June 12 (Reuters) – The U.S. Food and Drug Administration said on Friday it has approved the expanded use of Sanofi’s type 1 diabetes injection in ​children aged 8 to 17 years who were ‌recently diagnosed with stage 3 of the condition.

The FDA had first approved the drug, Tzield, in 2022 to delay the progression of type 1 diabetes from stage 2 to 3 in patients aged 8 ‌years ​and older. Its label was expanded ⁠over time.

In April, the ⁠regulator approved use of the drug to delay the progress to stage 3 in patients as young as one year.

The latest label expansion allows use of the ​drug in children recently diagnosed with stage 3 of the condition, with the aim of slowing down loss ⁠of insulin production.

Type 1 diabetes is ⁠a chronic condition in which the pancreas ​makes little or no insulin, with stage 3 patients experiencing ​symptoms such as frequent urination, excessive thirst and fatigue.

Stage ‌3 patients usually require insulin therapy to manage these symptoms.

Tzield works by targeting the immune response that damages insulin-producing cells in the pancreas, helping preserve the body’s own ⁠insulin production for longer.

The latest approval was based on a study of 328 children and teenagers who had been diagnosed within ⁠the past six ‌weeks. Patients who received the drug had ⁠a smaller decline in insulin-producing cell function ​than those ‌who received a placebo after about 18 ​months.

Tzield, however, ⁠has been under FDA scrutiny over safety concerns. The drug has a ‘boxed warning’, the FDA’s most prominent safety warning, after reports of serious life-threatening cases of viral infections, including Epstein-Barr virus and cytomegalovirus.

(Reporting by Kunal Das in Bengaluru; Editing ​by Leroy Leo)