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Pepmixes for Multiviral CTL Generation

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Summary

USPTO published patent application US20260092256A1 by Baylor College of Medicine covering methods of generating CTLs (cytotoxic T lymphocytes) targeting antigens from multiple viruses. The invention uses peptide mixtures exposed to PBMCs with IL4 and IL7 expansion. Published April 2, 2026, Application No. 19020866.

What changed

Baylor College of Medicine filed patent application US20260092256A1 for methods of generating CTLs with broad specificity against multiple viruses. The invention involves exposing peptide mixtures from different viral antigens to the same plurality of peripheral blood mononuclear cells (PBMCs), with cell expansion using IL4 and IL7 cytokines. The application covers pepmixes for at least two viruses and various CPC classifications including C12N 5/0638, A61K 39/12, and related pharmaceutical compositions.

This is a published patent application representing a novel immunotherapy method rather than a regulatory compliance requirement. Organizations developing cellular therapies, antiviral immunotherapies, or related biologics should review the published claims for potential freedom-to-operate or licensing considerations. Patent prosecution typically takes 2-3 years before issuance.

Archived snapshot

Apr 2, 2026

GovPing captured this document from the original source. If the source has since changed or been removed, this is the text as it existed at that time.

← USPTO Patent Applications

PEPMIXES TO GENERATE MULTIVIRAL CTLS WITH BROAD SPECIFICITY

Application US20260092256A1 Kind: A1 Apr 02, 2026

Assignee

Baylor College of Medicine

Inventors

Ann Marie Leen, Juan Fernando Vera Valdes, Cliona M. Rooney, Ulrike Gerdemann

Abstract

The present invention concerns methods of generating CTLs that are able to target at least one antigen from two or more viruses. The method includes exposing mixtures of peptides for different antigens to the same plurality of PBMCs and, at least in certain aspects, expanding the cells in the presence of IL4 and IL7.

CPC Classifications

C12N 5/0638 A61K 39/12 A61K 40/11 A61K 40/46 C07K 14/025 C07K 14/03 C07K 14/11 C07K 14/135 C12N 7/00 A61K 2039/55527 A61K 2039/57 A61K 2039/572 A61K 2039/577 A61K 2039/70 C12N 2501/2302 C12N 2501/2304 C12N 2501/2307 C12N 2501/2315 C12N 2710/16134 C12N 2710/16234 Y02A 50/30

Filing Date

2025-01-14

Application No.

19020866

View original document →

Named provisions

Methods of Generating Multiviral CTLs Peptide Mixtures for Different Antigens PBMC Exposure and Expansion

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Last updated

Classification

Agency
USPTO
Published
April 2nd, 2026
Instrument
Notice
Legal weight
Non-binding
Stage
Draft
Change scope
Minor
Document ID
US20260092256A1
Docket
19020866

Who this affects

Applies to
Pharmaceutical companies Drug manufacturers
Industry sector
3254 Pharmaceutical Manufacturing 3254.1 Biotechnology
Activity scope
Patent Applications Intellectual Property
Geographic scope
United States US

Taxonomy

Primary area
Intellectual Property
Operational domain
Legal
Topics
Healthcare Pharmaceuticals

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