NEW YORK (TheStreet) -- Shares of Novo Nordisk (NVO) popped 5% last week after the U.S. Food and Drug Administration approved the application for its long-acting insulin drug Tresiba. Dr. Todd Hobbs, the company's U.S. chief medical officer, said he is confident the new diabetes drug will live up to its early hype.

"The long duration of action is something unique," said Hobbs. "It's going to offer patients flexibility that they don't have with current products and we are real excited to have that in the U.S. now."

Tresiba is already sold in 30 countries, and Novo Nordisk -- already the world's largest insulin maker -- expects to launch it in the U.S. in early 2016. The U.S. approval means Novo Nordisk will be competing with against long-acting insulins Lantus and Toujeo sold by rival Sanofi (SNY).

Tresiba is indicated for use alone, or in combination with oral antidiabetic medicines or bolus insulin, and is approved for glycemic control in adults with type 1 and type 2 diabetes, according to Hobbs. He said Tresiba provides a long duration of action beyond 42 hours. While patients are encouraged to take their insulin at the same time each day, Hobbs said Tresiba allows patients to dose at any time of the day which is different from its current product in the market, Levemir.

"Levemir has been very successful in the U.S. and abroad and it will still be available, but our efforts are going to be behind Tresiba," said Hobbs.

Tresiba will be available in the FlexTouch pen, which has no push-button extension, and will be offered in two concentrations enabling maximum doses of 80 units and 160 units per single injection, respectively, according to Novo Nordisk. Hobbs said Tresiba also offers other patient benefits such as eight weeks of in-use time at room temperature.

Regarding Tresiba's performance versus Sanofi's insulin offering, Lantus, Hobbs said Tresiba's clinical program was designed "head-to-head versus them, so we feel like we have the benefits that are going to enable us to fight a good fight against that market leader."

More from Investing

Famed Chartist Marc Chaikin Gives Jim Cramer His Top Picks This Wednesday

Famed Chartist Marc Chaikin Gives Jim Cramer His Top Picks This Wednesday

Rewind: Jim Cramer on Trade, Pepsico, SodaStream, Estee Lauder and Nike

Rewind: Jim Cramer on Trade, Pepsico, SodaStream, Estee Lauder and Nike

Nvidia Shares Rise as CEO Jensen Huang Gives Keynote at Gamescom 2018

Nvidia Shares Rise as CEO Jensen Huang Gives Keynote at Gamescom 2018

Here's Why Sears Stock Got Slammed Again

Here's Why Sears Stock Got Slammed Again

Apple Bulls Make Quick, Fast Gains at All-Time High

Apple Bulls Make Quick, Fast Gains at All-Time High