• Home
  • Latest
  • Fortune 500
  • Finance
  • Tech
  • Leadership
  • Lifestyle
  • Rankings
  • Multimedia
FinancePatents and Trademarks

Novo Nordisk is losing Canadian patent protection on a blockbuster drug after not paying a small fee

Jason Ma
By
Jason Ma
Jason Ma
Weekend Editor
Down Arrow Button Icon
Jason Ma
By
Jason Ma
Jason Ma
Weekend Editor
Down Arrow Button Icon
June 17, 2025, 5:05 AM ET
Last year, Novo Nordisk generated about $19 billion in global Ozempic sales and about $9 billion in Wegovy sales.
Last year, Novo Nordisk generated about $19 billion in global Ozempic sales and about $9 billion in Wegovy sales. Steve Christo—Corbis/Getty Images
  • The pharma giant will lose its patent protection on semaglutide, which is sold as Ozempic and Wegovy, in Canada after not paying a nominal maintenance fee years before it became a blockbuster drug for fighting diabetes and obesity, Science reported. Novo Nordisk generates billions of dollars in revenue from the drug in Canada, but patent protection is due to end next year.

Years before semaglutide became a blockbuster drug for Novo Nordisk, the Danish pharma giant had the chance to maintain its patent in Canada but didn’t pay a small fee to do so, according to a recent report in Science.

Recommended Video

The drug, which is sold as Ozempic and Wegovy, has made so much money for Novo Nordisk after exploding in popularity in the past few years that it has even impacted Denmark’s currency and interest rates.

To keep the semaglutide patent in Canada, the company had to pay an annual fee of just 250 Canadian dollars (~$185 USD). While it paid that amount in 2018, Science reported that it didn’t the following year.

The Canadian government offered Novo Nordisk another chance to keep its patent, this time with an additional charge that brought the total to 450 Canadian dollars ($331 USD).

“In order to prevent the patent from lapsing, the amount listed above, which includes the required maintenance fee and the late payment fee, must be paid within the one-year period of grace following the filing date anniversary,” a letter from regulators said, putting the anniversary date at March 20, 2019. “Once a patent has lapsed it cannot be revived.”

Makers of generic drugs have taken notice, with Science pointing to recent comments from the company Sandoz that it has filed to launch a generic GLP-1 drug in Canada next year and expects approval sometime in the first quarter when exclusivity expires. 

“Interesting market. Novo never filed a patent in Canada. Never know why,” Sandoz CEO Richard Saynor told Endpoints News earlier this month. “I’m sure someone’s lost their job, but never mind. It’s the second-largest semaglutide market in the world.”

In a statement to Fortune, Novo Nordisk said there was no mistake regarding its patent maintenance fee in Canada and declined to comment on other drug manufacturers’ plans.

“All intellectual property decisions are carefully considered at a global level,” the company added. “Periods of exclusivity for pharmaceutical products end as part of their normal life cycle, and generic treatments may become available over time.”

The company confirmed that protection for semaglutide regulatory submissions in Canada will expire in 2026.

Meanwhile, Ozempic patents expire several years later in other big markets like the U.S. (2032), Japan (2031), and Europe (2031), according to the company’s most recent annual report.

Last year, Novo Nordisk generated about $19 billion in global Ozempic sales and about $9 billion in Wegovy sales. In Canada, retail pharmacies there booked Ozempic sales of 2.5 billion Canadian dollars.

Join us at the Fortune Workplace Innovation Summit May 19–20, 2026, in Atlanta. The next era of workplace innovation is here—and the old playbook is being rewritten. At this exclusive, high-energy event, the world’s most innovative leaders will convene to explore how AI, humanity, and strategy converge to redefine, again, the future of work. Register now.
About the Author
Jason Ma
By Jason MaWeekend Editor

Jason Ma is the weekend editor at Fortune, where he covers markets, the economy, finance, and housing.

See full bioRight Arrow Button Icon

Latest in Finance

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025

Most Popular

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Fortune Secondary Logo
Rankings
  • 100 Best Companies
  • Fortune 500
  • Global 500
  • Fortune 500 Europe
  • Most Powerful Women
  • Future 50
  • World’s Most Admired Companies
  • See All Rankings
Sections
  • Finance
  • Fortune Crypto
  • Features
  • Leadership
  • Health
  • Commentary
  • Success
  • Retail
  • Mpw
  • Tech
  • Lifestyle
  • CEO Initiative
  • Asia
  • Politics
  • Conferences
  • Europe
  • Newsletters
  • Personal Finance
  • Environment
  • Magazine
  • Education
Customer Support
  • Frequently Asked Questions
  • Customer Service Portal
  • Privacy Policy
  • Terms Of Use
  • Single Issues For Purchase
  • International Print
Commercial Services
  • Advertising
  • Fortune Brand Studio
  • Fortune Analytics
  • Fortune Conferences
  • Business Development
  • Group Subscriptions
About Us
  • About Us
  • Editorial Calendar
  • Press Center
  • Work At Fortune
  • Diversity And Inclusion
  • Terms And Conditions
  • Site Map
  • About Us
  • Editorial Calendar
  • Press Center
  • Work At Fortune
  • Diversity And Inclusion
  • Terms And Conditions
  • Site Map
  • Facebook icon
  • Twitter icon
  • LinkedIn icon
  • Instagram icon
  • Pinterest icon

Latest in Finance

‘This is the last warning.’ Iran threatens U.S. warships after they throw down the gauntlet for winner-take-all Strait of Hormuz
PoliticsIran
‘This is the last warning.’ Iran threatens U.S. warships after they throw down the gauntlet for winner-take-all Strait of Hormuz
By Jason MaApril 11, 2026
2 hours ago
The petrodollar faces increased risk, but a petroyuan is ‘far-fetched’ as fears of U.S. losing superpower status are overhyped, strategist says
EconomyCurrency
The petrodollar faces increased risk, but a petroyuan is ‘far-fetched’ as fears of U.S. losing superpower status are overhyped, strategist says
By Jason MaApril 11, 2026
5 hours ago
Average price of new cars nears $50,000 as automakers focus on big pickups and SUVs while cheaper sedans get phased out
EconomyAutos
Average price of new cars nears $50,000 as automakers focus on big pickups and SUVs while cheaper sedans get phased out
By Alexa St. John and The Associated PressApril 11, 2026
7 hours ago
Three oil supertankers sail through the Strait of Hormuz
EnergyOil
Three oil supertankers sail through the Strait of Hormuz
By Julian Lee, Weilun Soon and BloombergApril 11, 2026
9 hours ago
Boeing’s moon rocket faces uncertain future under Trump’s NASA
PoliticsNASA
Boeing’s moon rocket faces uncertain future under Trump’s NASA
By Sana Pashankar and BloombergApril 11, 2026
9 hours ago
Some of cheapest fuel can be found on Native American reservations as tribes are exempt from state gas taxes
Energygas prices
Some of cheapest fuel can be found on Native American reservations as tribes are exempt from state gas taxes
By Mead Gruver and The Associated PressApril 11, 2026
10 hours ago

Most Popular

Scottie Scheffler joined Tiger Woods and Rory McIlroy in golf's $100M club—and donated his entire Ryder Cup stipend to charity
Success
Scottie Scheffler joined Tiger Woods and Rory McIlroy in golf's $100M club—and donated his entire Ryder Cup stipend to charity
By Fortune EditorsApril 10, 2026
1 day ago
The Navy confirmed an ‘abundant amount’ of Uncrustables when the Artemis II crew lands. Smucker’s just offered them a lifetime supply
Politics
The Navy confirmed an ‘abundant amount’ of Uncrustables when the Artemis II crew lands. Smucker’s just offered them a lifetime supply
By Fortune EditorsApril 10, 2026
1 day ago
The 'affordability economy' has created a housing market nobody predicted: Prices collapsing in the Sun Belt, soaring in the Rust Belt
Real Estate
The 'affordability economy' has created a housing market nobody predicted: Prices collapsing in the Sun Belt, soaring in the Rust Belt
By Fortune EditorsApril 11, 2026
17 hours ago
Warren Buffett says 'accumulating great amounts of money' doesn’t achieve greatness—He still lives in a $31,500 Nebraska home and clipped coupons
Success
Warren Buffett says 'accumulating great amounts of money' doesn’t achieve greatness—He still lives in a $31,500 Nebraska home and clipped coupons
By Fortune EditorsApril 11, 2026
14 hours ago
Palantir CEO says AI ‘will destroy’ humanities jobs but there will be ‘more than enough jobs’ for people with vocational training
Future of Work
Palantir CEO says AI ‘will destroy’ humanities jobs but there will be ‘more than enough jobs’ for people with vocational training
By Fortune EditorsApril 11, 2026
13 hours ago
Schools across America are quietly admitting that screens in classrooms made students worse off and are reversing years of tech-first policies
Innovation
Schools across America are quietly admitting that screens in classrooms made students worse off and are reversing years of tech-first policies
By Fortune EditorsApril 10, 2026
2 days ago

© 2026 Fortune Media IP Limited. All Rights Reserved. Use of this site constitutes acceptance of our Terms of Use and Privacy Policy | CA Notice at Collection and Privacy Notice | Do Not Sell/Share My Personal Information
FORTUNE is a trademark of Fortune Media IP Limited, registered in the U.S. and other countries. FORTUNE may receive compensation for some links to products and services on this website. Offers may be subject to change without notice.