istradefylline · Kyowa Kirin · NDA 022075
Nourianz
Earliest generic entry, as listed · earliest of 2 marketed strengths
28 Jan 2028
Blocked by patent: US 7727993.
Listed patents · 2 unexpired
| Patent | Claims | Expires |
|---|---|---|
| US 7727993 | product, use U-2623 | 28 Jan 2028 |
| US 8318201 | product | 5 Sep 2027 |
Exclusivities · 0 unexpired
No unexpired exclusivities listed.
Paragraph IV certifications · 0
No Paragraph IV certification listed by FDA for this drug.
The list shows that a generic applicant certified to FDA that a listed patent is invalid or not infringed. It does not show litigation, settlements or launch timing.
Event history
No events yet. The first ingestion only records products entering their 12-month window; changes appear from the next Orange Book update.
Products covered · 2
| NDA · product | Form | Strength | Listed expiry |
|---|---|---|---|
| 022075 · 001 · RLD | tablet, oral | 20MG | 28 Jan 2028 |
| 022075 · 002 · RLD | tablet, oral | 40MG | 28 Jan 2028 |