ONTAK Drug Profile
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Summary for Tradename: ONTAK
High Confidence Patents: | 0 |
Applicants: | 1 |
BLAs: | 1 |
Patent Litigation and PTAB cases: | See patent lawsuits and PTAB cases for ONTAK |
Recent Litigation for ONTAK
Identify key patents and potential future biosimilar entrants
District Court Litigation
Case Name | Date |
---|---|
Jazz Pharmaceuticals, Inc. v. Avadel CNS Pharmaceuticals, LLC | 2021-11-10 |
Jazz Pharmaceuticals, Inc. v. Avadel CNS Pharmaceuticals, LLC | 2021-05-12 |
Par Pharmaceutical, Inc. v. Eagle Pharmaceuticals, Inc. | 2018-05-31 |
PTAB Litigation
Petitioner | Date |
---|---|
2017-11-17 |
Note on Biologic Patents
Matching patents to biologic drugs is far more complicated than for small-molecule drugs.
DrugPatentWatch employs three methods to identify biologic patents:
- Brand-side disclosures in response to biosimilar applications
- General brand-side disclosures
- Patents from broad patent text search
These patents were identified from disclosures by the brand-side company, in response to a potential biosimilar seeking to launch. They have a high certainty of blocking biosimilar entry. The expiration dates listed are not estimates — they're expiration dates as indicated by the brand-side company.
These patents were identified from searching drug labels and other general disclosures from the brand-side company. This list may exclude some of the patents which block biosimilar launch, and some of these patents listed may not actually block biosimilar launch. The expiration dates listed for these patents are estimates, based on the grant date of the patent.
For completeness, these patents were identified by searching the patent literature for mentions of the branded or ingredient name of the drug. Some of these patents protect the original drug, whereas others may protect follow-on inventions or even inventions casually mentioning the drug. The expiration dates listed for these patents are estimates, based on the grant date of the patent.
1) High Certainty: US Patents for ONTAK Derived from Brand-Side Litigation
No patents found based on brand-side litigation
2) High Certainty: US Patents for ONTAK Derived from Company Disclosures
No patents found based on company disclosures
3) Low Certainty: US Patents for ONTAK Derived from Patent Text Search
Applicant | Tradename | Biologic Ingredient | Dosage Form | BLA | Patent No. | Estimated Patent Expiration | Source |
---|---|---|---|---|---|---|---|
Eisai, Incorporated | ONTAK | denileukin diftitox | Injection | 103767 | ⤷ Sign Up | 2034-11-21 | Patent claims search |
Eisai, Incorporated | ONTAK | denileukin diftitox | Injection | 103767 | ⤷ Sign Up | 2027-10-03 | Patent claims search |
Eisai, Incorporated | ONTAK | denileukin diftitox | Injection | 103767 | ⤷ Sign Up | 2036-04-01 | Patent claims search |
Eisai, Incorporated | ONTAK | denileukin diftitox | Injection | 103767 | ⤷ Sign Up | 2032-02-15 | Patent claims search |
Eisai, Incorporated | ONTAK | denileukin diftitox | Injection | 103767 | ⤷ Sign Up | 2039-02-26 | Patent claims search |
Eisai, Incorporated | ONTAK | denileukin diftitox | Injection | 103767 | ⤷ Sign Up | 2035-12-02 | Patent claims search |
Eisai, Incorporated | ONTAK | denileukin diftitox | Injection | 103767 | ⤷ Sign Up | 2039-02-26 | Patent claims search |
>Applicant | >Tradename | >Biologic Ingredient | >Dosage Form | >BLA | >Patent No. | >Estimated Patent Expiration | >Source |