Sept 2 (Reuters) – South Korea’s Alteogen said on Wednesday it has signed a deal ‌with Novartis worth up to $3.22 billion, giving ‌the Swiss drugmaker access to its technology to make injectable ​versions of intravenous drugs.

Here are the details:

• Drugmakers are increasingly developing under-the-skin versions of medicines traditionally delivered through IV infusions due to their convenience.

• ‌The licensing agreement ⁠gives Novartis multiple options to gain exclusive rights for Alteogen’s Hybrozyme technology using ⁠the company’s ALT-B4 enzyme, also known as berahyaluronidase alfa.

• ALT-B4 works by temporarily breaking down hyaluronan, ​a natural ​substance found in the ​body’s tissue, allowing medicines ‌to spread and be absorbed more quickly when injected under the skin.

• Alteogen said it would be eligible to receive up to $3.22 billion if Novartis exercises all options and all development ‌and commercial milestones are achieved. ​The figure includes option exercise ​fees, milestone payments ​and royalties on future product sales.

• ‌This marks Alteogen’s fourth such ​licensing deal ​this year.

• The ALT-B4 technology is used in the injectable version of Merck’s top-selling drug, ​Keytruda. The ‌injection, branded Keytruda Qlex, got FDA approval ​last year.

(Reporting by Kamal Choudhury in Bengaluru; ​Editing by Leroy Leo)