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USPTO Patent Application for Anti-PD-1 Antibody-IL-2 Immunoconjugate Formulations

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Published September 22nd, 2025
Detected March 26th, 2026
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Summary

The USPTO has published a new patent application (US20260083857A1) for anti-PD-1 antibody-IL-2 immunoconjugate formulations. The application details stable pharmaceutical formulations comprising anti-human PD-1 antibody-modified human interleukin-2 immunoconjugates.

What changed

This document is a publication of a new patent application filed with the USPTO, specifically application number US20260083857A1. The application, titled 'ANTI-PD-1 ANTIBODY-ATTENUATED IL-2 IMMUNOCONJUGATE FORMULATIONS,' was filed on September 22, 2025, and discloses stable pharmaceutical formulations involving anti-human PD-1 antibody-modified human interleukin-2 immunoconjugates.

As this is a patent application, it does not impose immediate regulatory obligations or compliance deadlines on regulated entities. However, it represents a new development in the field of immunoconjugates and may be of interest to pharmaceutical and biotechnology companies for potential licensing, competitive intelligence, or future product development strategies. No specific actions or penalties are associated with this publication.

Source document (simplified)

← USPTO Patent Applications

ANTI-PD-1 ANTIBODY-ATTENUATED IL-2 IMMUNOCONJUGATE FORMULATIONS

Application US20260083857A1 Kind: A1 Mar 26, 2026

Inventors

Haichen Nie, Pragya Manandhar, Zaneta Maijorovaite, Wei Liu

Abstract

Disclosed herein are stable pharmaceutical formulations comprising anti-human PD-1 (hPD-1) antibody-modified human interleukin-2 (hIL-2) immunoconjugates and uses thereof.

CPC Classifications

A61K 47/6851 A61K 47/12 A61K 47/183 A61K 47/26 A61K 47/6813 C07K 14/55 C07K 16/2818 C07K 2317/92

Filing Date

2025-09-22

Application No.

19335771

View original document →

Named provisions

Inventors Abstract CPC Classifications

Classification

Agency
USPTO
Published
September 22nd, 2025
Instrument
Notice
Legal weight
Non-binding
Stage
Final
Change scope
Minor
Document ID
US20260083857A1

Who this affects

Applies to
Drug manufacturers Pharmaceutical companies
Industry sector
3254 Pharmaceutical Manufacturing 3254.1 Biotechnology
Activity scope
Drug Development Pharmaceutical Formulation
Geographic scope
United States US

Taxonomy

Primary area
Pharmaceuticals
Operational domain
Research & Development
Compliance frameworks
FDA 21 CFR Part 11 GxP
Topics
Biotechnology Intellectual Property

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