Invalidity dossier
US 11878049
Added 5/19/2026, 6:00:46 AM
⚖️ Active PTAB challenge: 1 pending proceeding against this patent
1 active — Inter Partes Review, Post-Grant Review, or Covered Business Method proceedings at the USPTO Patent Trial and Appeal Board.
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Patent summary
Title, assignee, inventors, filing/issue dates, abstract, and a plain-language overview of the claims.
US Patent 11878049 Summary
Title: Mitapivat therapy and modulators of cytochrome P450
Assignee: Agios Pharmaceuticals Inc.
Inventors: Varsha Venkatachalam Iyer, Chandra Agarwal Prakash, Hua Yang
Filing Date: 2020-06-12
Issue Date: 2024-01-23
Abstract: The patent describes methods for treating diseases, disorders, or conditions using mitapivat or its pharmaceutically acceptable salts. These methods involve either co-administering mitapivat with a cytochrome P450 3A4/5 (CYP3A4/5) inducer, a CYP3A4/5 inhibitor, or a p-glycoprotein (p-gp) inhibitor, or administering mitapivat in the absence of such modulators. The disclosure provides for adjusting the mitapivat dosage to manage drug-drug interactions when co-administered with CYP3A4/5 modulators or p-gp inhibitors. Diseases targeted include pyruvate kinase deficiency (PKD), sickle cell disease, and thalassemia.
Plain-Language Overview of Independent Claims:
- Claim 1: This claim covers a method to treat pyruvate kinase deficiency (PKD) by giving a patient an effective amount of mitapivat (or a salt form) along with an effective amount of a drug that increases the activity of CYP3A4 or CYP3A5 enzymes.
- Claim 16: This claim outlines a method to treat PKD by giving a patient an effective amount of mitapivat (or a salt form) without also giving them a drug that increases the activity of CYP3A4 or CYP3A5 enzymes.
- Claim 22: This claim describes a method to treat PKD by giving a patient an effective amount of mitapivat (or a salt form) along with an effective amount of a drug that decreases the activity of CYP3A4 or CYP3A5 enzymes.
- Claim 37: This claim covers a method to treat PKD by giving a patient an effective amount of mitapivat (or a salt form) without also giving them a drug that decreases the activity of CYP3A4 or CYP3A5 enzymes.
- Claim 43: This claim describes a method to treat sickle cell disease by giving a patient an effective amount of mitapivat (or a salt form) along with an effective amount of a drug that increases the activity of CYP3A4 or CYP3A5 enzymes.
- Claim 50: This claim outlines a method to treat sickle cell disease by giving a patient an effective amount of mitapivat (or a salt form) without also giving them a drug that increases the activity of CYP3A4 or CYP3A5 enzymes.
- Claim 54: This claim covers a method to treat sickle cell disease by giving a patient an effective amount of mitapivat (or a salt form) along with an effective amount of a drug that decreases the activity of CYP3A4 or CYP3A5 enzymes.
- Claim 61: This claim describes a method to treat sickle cell disease by giving a patient an effective amount of mitapivat (or a salt form) without also giving them a drug that decreases the activity of CYP3A4 or CYP3A5 enzymes.
- Claim 65: This claim outlines a method to treat thalassemia by giving a patient an effective amount of mitapivat (or a salt form) along with an effective amount of a drug that increases the activity of CYP3A4 or CYP3A5 enzymes.
- Claim 74: This claim covers a method to treat thalassemia by giving a patient an effective amount of mitapivat (or a salt form) without also giving them a drug that increases the activity of CYP3A4 or CYP3A5 enzymes.
- Claim 80: This claim describes a method to treat thalassemia by giving a patient an effective amount of mitapivat (or a salt form) along with an effective amount of a drug that decreases the activity of CYP3A4 or CYP3A5 enzymes.
- Claim 89: This claim outlines a method to treat thalassemia by giving a patient an effective amount of mitapivat (or a salt form) without also giving them a drug that decreases the activity of CYP3A4 or CYP3A5 enzymes.
- Claim 95: This claim covers a method to treat PKD by giving a patient an effective amount of mitapivat (or a salt form) along with an effective amount of a p-glycoprotein inhibitor.
- Claim 102: This claim describes a method to treat PKD by giving a patient an effective amount of mitapivat (or a salt form) without also giving them a p-glycoprotein inhibitor.
- Claim 108: This claim outlines a method to treat sickle cell disease by giving a patient an effective amount of mitapivat (or a salt form) along with an effective amount of a p-glycoprotein inhibitor.
- Claim 113: This claim covers a method to treat sickle cell disease by giving a patient an effective amount of mitapivat (or a salt form) without also giving them a p-glycoprotein inhibitor.
- Claim 117: This claim describes a method to treat thalassemia by giving a patient an effective amount of mitapivat (or a salt form) along with an effective amount of a p-glycoprotein inhibitor.
- Claim 124: This claim outlines a method to treat thalassemia by giving a patient an effective amount of mitapivat (or a salt form) without also giving them a p-glycoprotein inhibitor.
CAFC 2026 Dockets: As of April 26, 2026, no specific dockets related to US patent 11878049 were found in the 2026 filings of the U.S. Court of Appeals for the Federal Circuit.
Generated 5/19/2026, 6:02:08 AM