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  • Why the Patent Court rejected the ¡®prodrug strategy¡¯
  • by Kim, Jin-Gu | translator Alice Kang | Mar 10, 2022 05:53am
AstraZeneca wins second trial on ¡®Forxiga¡¯s substance patent¡¯¡¦ Dong-A ST files an appeal
Patent Court has the same principle of action and effect¡¦"is not difficult to develop the technology¡±
Last decision to be made by the Supreme Court¡¦ ¡®strategy to overcome substance patents of original drugs¡¯ at a crossroad
Dong-A ST is challenging the substance patent of AstraZeneca¡¯s SGLT-2 inhibitor antidiabetic treatment ¡®Forxiga (dapagliflozin).¡¯

The industry¡¯s eyes are focused on Dong-A ST¡¯s challenge, with the expectation that Dong-A ST¡¯s success would bring a new strategy that can overcome the substance patent of originals.

However, Dong-A ST¡¯s attempt has been put to a stop by the Patent Court of Korea. The final decision will be made by the Supreme Court, but attention is focused on why the Patent Court of Korea overturned the first instance court's ruling and ruled in favor of AstraZeneca in its appeal against Dong-A ST.

¡ß "Clear difference between the original drug and prodrug¡± judged in both the first
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