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USPTO Grants Patent for PI3K-α Inhibitors to Relay Therapeutics

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Published March 17th, 2026
Detected March 22nd, 2026
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Summary

The USPTO has granted a patent (US12581252B2) to Relay Therapeutics, Inc. for substituted pyrrolo[3,4-b]pyridines as PI3K-α inhibitors. The patent covers novel compounds and pharmaceutical compositions for treating disorders associated with PI3Kα signaling.

What changed

The United States Patent and Trademark Office (USPTO) has granted patent US12581252B2 to Relay Therapeutics, Inc. The patent, titled 'Substituted pyrrolo[3,4-b]pyridines as PI3K-α inhibitors,' covers novel compounds and pharmaceutical compositions thereof, as well as methods for inhibiting the activity of PI3Kα enzymes and treating disorders associated with PI3Kα signaling. The patent was filed on April 29, 2021, and granted on March 17, 2026, with 20 claims.

This patent grant represents a new intellectual property asset for Relay Therapeutics, potentially impacting their drug development pipeline for oncology or other therapeutic areas where PI3Kα signaling is implicated. While this is a patent grant and not a regulatory rule, it signifies a new innovation in the pharmaceutical space. Companies operating in similar therapeutic areas should be aware of this granted patent as it may affect their freedom to operate or potential licensing opportunities.

Source document (simplified)

← USPTO Patent Grants

Substituted pyrrolo[3,4-b]pyridines as PI3K-α inhibitors

Grant US12581252B2 Kind: B2 Mar 17, 2026

Assignee

Relay Therapeutics, Inc.

Inventors

Alessandro Boezio, Lucian V. Dipietro, Hakan Gunaydin, Thomas H. McLean, Levi Charles Thomas Pierce, Fabrizio Giordanetto, Yakov Pechersky, Megan Bertrand-Laperle, Alexandre Larivee, Kashif Tanveer, Michael Paul DeNinno, Tarek Mohamed

Abstract

The present disclosure relates to novel compounds and pharmaceutical compositions thereof, and methods for inhibiting the activity of PI3Kα enzymes with the compounds and compositions of formula I-1. The present disclosure further relates to, but is not limited to, methods for treating disorders associated with PI3Kα signaling with the compounds and compositions of formula I-1.

CPC Classifications

A61K 31/4035 C07D 209/46

Filing Date

2021-04-29

Application No.

17921580

Claims

20

View original document →

Named provisions

Assignee Inventors Abstract CPC Classifications Filing Date Application No. Claims

Source

Analysis generated by AI. Source diff and links are from the original.

Classification

Agency
USPTO
Published
March 17th, 2026
Instrument
Notice
Legal weight
Non-binding
Stage
Final
Change scope
Minor
Document ID
US12581252B2

Who this affects

Applies to
Drug manufacturers Pharmaceutical companies
Industry sector
3254 Pharmaceutical Manufacturing
Activity scope
Drug Development Intellectual Property
Geographic scope
United States US

Taxonomy

Primary area
Pharmaceuticals
Operational domain
Legal
Compliance frameworks
FDA 21 CFR Part 11 GxP
Topics
Intellectual Property Drug Development

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