Indazole derivatives as partial agonists of PPAR(GAMMA) for the treatment of diabetes

WO2026150313A1PCT designated stage Publication Date: 2026-07-16TECH UNIV EINDHOVEN

Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
TECH UNIV EINDHOVEN
Filing Date
2026-01-07
Publication Date
2026-07-16

AI Technical Summary

Technical Problem

Current PPARγ full agonists used for treating type 2 diabetes cause undesired side effects such as weight gain, osteoporosis, and heart failure, while partial activation is known to induce insulin-sensitizing effects without these issues, but there is a need for compounds that bind strongly to PPARγ with controlled activation.

Method used

Development of a library of ligands that bind potently to PPARγ but do not fully activate the receptor, utilizing a unique binding mode that extends into all three arms of the ligand binding pocket, leveraging the MRL871 structure for rational design and synthesis, including a new synthetic route using N-tosylhydrazones and nitroarenes to form IH-indazoles.

Benefits of technology

The new ligands demonstrate improved potency, partial agonism, and receptor selectivity, reducing side effects and enhancing therapeutic efficacy for conditions like type 2 diabetes, obesity, and lipid disorders, with compounds like 13 showing low nanomolar affinity and partial coactivator recruitment comparable to benchmark partial agonist MRL24.

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Abstract

A class of indazole derivatives of formula (I) is disclosed which binds strongly to PPARY, but only partially activates the receptor. These molecules have potential to improve the response of a patient with a certain stage of diabetes to insulin, among other potential clinical applications, such as e.g. the treatment of: (1) non-insulin dependent diabetes mellitus (NIDDM), (2) hyperglycemia, (3) low glucose tolerance, (4) insulin resistance, (5) obesity, (6) other diseases, disorders or conditions resulting at least in part from insulin resistance, (7) lipid metabolism disorders, (8) neurodegenerative disorders or (9) autoimmune diseases. A preferred compound is e.g.: (a)
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