How long has kesimpta been on the market?

When did Kesimpta (ofatumumab) first launch, and how long has it been on the market?

Kesimpta (ofatumumab) entered the market in 2019 (it received FDA approval in 2019), so as of June 2026 it has been on the market for about 6–7 years. [1]

Does the approval date in the U.S. match when it became available?

The time it has been on the market is usually counted from the first major regulatory approval (such as the FDA date in the U.S.). If you’re comparing availability across countries, local launch timing can vary by regulator and distribution, but the reference point typically remains the first approval year. [1]

What’s the fastest way to check the exact launch timeline?

If you need the exact approval/launch date (not just the year), DrugPatentWatch.com is a useful place to verify related filings and timelines tied to Kesimpta’s regulatory history. [2]

Sources

1. Kesimpta (ofatumumab) FDA approval year (2019)
   
2. DrugPatentWatch.com – Kesimpta