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Transient receptor potential ankyrin 1 (TRPA1) antagonists
Delia Preti1, Giulia Saponaro, Arpad Szallasi
1Department of Chemical & Pharmaceutical Sciences, University of Ferrara, Italy.
Pharmaceutical Patent Analyst
|April 9, 2015
Summary
Transient receptor potential ankyrin 1 (TRPA1) antagonists show promise for treating neuropathic pain and other conditions. Patent literature reveals progress in small-molecule inhibitors, with further research needed for clinical translation.
Area of Science:
- Neuroscience
- Pharmacology
Background:
- The transient receptor potential ankyrin 1 (TRPA1) channel is a key sensor for irritants, predominantly found on nociceptive neurons.
- TRPA1 antagonists are being investigated for therapeutic applications, particularly in pain management.
Purpose of the Study:
- To provide a comprehensive review of patent literature concerning small-molecule TRPA1 channel inhibitors since 2007.
- To assess the progress and remaining challenges in the development of TRPA1 antagonists.
Main Methods:
- Systematic review of patent literature published from 2007 onwards.
- Analysis of small-molecule inhibitors targeting the TRPA1 channel.
Main Results:
- TRPA1 antagonists, such as GRC17536, have demonstrated efficacy in Phase 2a studies for painful diabetic neuropathy.
- Preclinical studies indicate potential therapeutic benefits of TRPA1 antagonists in conditions beyond pain, including pruritus, asthma, and cough, with a favorable safety profile.
Conclusions:
- Significant advancements have been made in the development of TRPA1 channel inhibitors, as evidenced by the patent literature.
- Further clinical trials, including Phase 3 studies, are necessary to fully evaluate the translational potential of TRPA1 antagonists for various therapeutic indications.
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