The US Food and Drug Administration (FDA) has given a tentative approval for LUSDUNA Nexvue (insulin glargine injection) 100 units/mL, a follow-on biologic basal insulin in a pre-filled dosing device. LUSDUNA Nexvue is being developed by Merck with funding from Samsung Bioepis. With the tentative approval, LUSDUNA Nexvue has met all required regulatory standards for follow-on biologics of clinical and nonclinical safety, efficacy and quality, but is subject to an automatic stay due to a lawsuit from Sanofi claiming patent infringement. Under the Hatch-Waxman Act, the initiation of Sanofi’s lawsuit in September 2016 automatically invoked a stay on final FDA approval of LUSDUNA Nexvue for a period of up to 30 months, or in the event a court finds in favor of Merck, whichever comes sooner. “The tentative approval of LUSDUNA Nexvue is an important milestone, bringing us closer to offering this medicine to patients,” said Sam Engel, M.D., associate vice president, Merck clinical research, diabetes, endocrinology and women’s health. The trade name “LUSDUNA Nexvue” was granted provisional approval by the FDA and will be used in the U.S. when the product is made available. Source: Company Press Release