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Updated: May 15, 2026

Methods for the Discovery of Novel Compounds Modulating a Gamma-Aminobutyric Acid Receptor Type A Neurotransmission
Published on: August 16, 2018
mGlu5 negative allosteric modulators: a patent review (2010-2012).
1Vanderbilt University Medical Center, Vanderbilt Center for Neuroscience Drug Discovery, Department of Chemistry, Nashville, TN 37232, USA. kyle.a.emmitte@vanderbilt.edu
Small molecule negative allosteric modulators (NAMs) targeting the metabotropic glutamate receptor subtype 5 (mGlu5) show promise for various neurological and psychiatric disorders. Continued chemical diversity in mGlu5 NAMs fuels optimism for future therapeutic development.
Area of Science:
- Medicinal Chemistry
- Neuroscience
- Drug Discovery
Background:
- Metabotropic glutamate receptor subtype 5 (mGlu5) negative allosteric modulators (NAMs) have been extensively researched for over a decade.
- mGlu5 NAMs are investigated for treating pain, anxiety, GERD, Parkinson's disease levodopa-induced dyskinesia (PD-LID), fragile X syndrome (FXS), autism, addiction, and depression.
Purpose of the Study:
- To review clinical trial progress of mGlu5 NAMs.
- To summarize patent applications for small molecule mGlu5 NAMs from 2010-2012.
- To categorize new chemical entities based on structural features and improvements.
Main Methods:
- Review of clinical trial data for mGlu5 NAMs.
- Analysis of patent literature published between 2010 and 2012.
- Categorization of patented mGlu5 NAMs into groups based on drug properties, disubstituted alkynes, or non-disubstituted alkynes.
Main Results:
- Clinical trial updates on mGlu5 NAMs were provided.
- Patent applications were summarized and categorized.
- Inventions focused on improved drug properties and novel chemical entities were detailed.
Conclusions:
- Optimism persists for the development of mGlu5 NAM therapeutics despite challenges.
- Increasing chemical diversity within mGlu5 NAMs is a positive indicator for the field.
- Opportunities for further advancements exist within this mature research area.
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