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Updated: Jul 19, 2026

A Modified Inflammatory Pain Model to Study the Analgesic Effect in Mice
Published on: November 15, 2024
An estrogen receptor-beta agonist is active in models of inflammatory and chemical-induced pain
Liza Leventhal1, Michael R Brandt, Terri A Cummons
1Neuroscience Discovery Research, Wyeth Research, Princeton, NJ 08543, United States.
Abstract:
ERB-041 (2-(3-Fluoro-4-hydroxyphenyl)-7-vinyl-1,3 benzoxazol-5-ol) is a selective estrogen receptor-beta agonist with activity in rodent models of rheumatoid arthritis and endometriosis. Clinical trials for these diseases are underway: however, the role of estrogen receptor-beta in modulating pain associated with inflammation remains unknown. These studies demonstrate that acutely administered ERB-041 is anti-hyperalgesic in preclinical models of chemical-induced and acute inflammatory pain, thus suggesting that ERB-041 may be useful for modulating pain associated with some types of inflammation.
Insights
ERB-041, a selective estrogen receptor-beta agonist, shows promise in reducing pain sensitivity in preclinical models of inflammation. This suggests potential for managing inflammatory pain conditions.
Area of Science:
- Pharmacology
- Pain Research
- Endocrinology
Background:
- Estrogen receptor-beta (ERB) plays a role in various physiological processes.
- ERB-041 is a selective ERB agonist investigated for rheumatoid arthritis and endometriosis.
- The impact of ERB-beta on inflammatory pain is not well understood.
Purpose of the Study:
- To investigate the effect of ERB-041 on pain modulation in preclinical models.
- To determine if ERB-041 exhibits anti-hyperalgesic properties in inflammatory pain conditions.
Main Methods:
- Utilized preclinical models of chemical-induced and acute inflammatory pain.
- Administered ERB-041 to assess its impact on pain responses.
Main Results:
- Acutely administered ERB-041 demonstrated anti-hyperalgesic effects.
- ERB-041 reduced pain sensitivity in the tested inflammatory pain models.
Conclusions:
- ERB-041 possesses anti-hyperalgesic properties in preclinical models of inflammatory pain.
- ERB-041 may be a potential therapeutic agent for modulating pain associated with certain inflammatory conditions.
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