Wednesday, July 8, 2026

Patent intelligence · US

US 11324822

Combination of HDAC inhibitor and anti-PD-1 antibody for treatment of cancer

granted A61KA61K2039/505A61K2039/54A61K2039/545
Status granted
Linked drugs 4
Pipeline programs 6
Years to expiry 16
Applicant portfolio 6
Patent details — US 11324822
Jurisdiction
US
Status
granted
Grant date
May 10, 2022
Expiration
May 5, 2042
Claims
24
CPC classes
A61K, A61K2039/505, A61K2039/54, A61K2039/545
View on Google Patents ↗

Quick answer

US 11324822 (Combination of HDAC inhibitor and anti-PD-1 antibody for treatment of cancer) is held by Syndax Pharmaceuticals, Inc.. Status: granted. Granted May 10, 2022. Expires May 5, 2042 (16 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Grant date
Expiration
Claims
24
CPC classes
A61K, A61K2039/505, A61K2039/54, A61K2039/545, A61K31/4406, A61K39/39541

More from Syndax Pharmaceuticals, Inc.

Related pharmaceutical patents in our USPTO index.

  1. US 12168054

    Method of treating cancer using a combination of entinostat and an anti-CSF-1R antibody

    Syndax Pharmaceuticals, Inc. · Expires Dec 12, 2044

    granted
  2. US 12000829

    Selection of patients for combination therapy

    Syndax Pharmaceuticals, Inc. · Expires May 30, 2044

    granted
  3. US 11919901

    Inhibitors of the menin-MLL interaction

    Syndax Pharmaceuticals, Inc. · Expires Feb 29, 2044

    granted
  4. US 11397184

    Selection of patients for combination therapy

    Syndax Pharmaceuticals, Inc. · Expires Jul 21, 2042

    granted
  5. US 10226472

    Methods for the treatment of breast cancer

    Syndax Pharmaceuticals, Inc. · Expires Mar 7, 2039

    granted

Frequently asked questions

What is US patent 11324822?

US 11324822 (Combination of HDAC inhibitor and anti-PD-1 antibody for treatment of cancer) is held by Syndax Pharmaceuticals, Inc.. Status: granted. Granted May 10, 2022. Expires May 5, 2042 (16 years remaining) — relevant for patent-cliff and LOE planning.

Who owns US 11324822?

Syndax Pharmaceuticals, Inc. is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 6 pharmaceutical patents for this assignee.

When does US 11324822 expire?

Our index shows an expiration date of May 5, 2042 (16 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.