Discovery of PF-5190457, a Potent, Selective, and Orally Bioavailable Ghrelin Receptor Inverse Agonist Clinical Candidate
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The identification of potent, highly selective orally bioavailable ghrelin receptor inverse agonists from a spiro-azetidino-piperidine series is described. Examples from this series have promising in vivo pharmacokinetics and increase glucose-stimulated insulin secretion in human whole and dispersed islets. A physicochemistry-based strategy to increase lipophilic efficiency for ghrelin receptor potency and retain low clearance and satisfactory permeability while reducing off-target pharmacology led to the discovery of 16h. Compound 16h has a superior balance of ghrelin receptor pharmacology and off-target selectivity. On the basis of its promising pharmacological and safety profile, 16h was advanced to human clinical trials.
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PF-5190457 effectively suppresses GHS-R1a activity, both at baseline and in response to ghrelin.
“PF-5190457, an inverse agonist for the ghrelin receptor discovered by Pfizer in the mid-2010s as a clinical candidate for diabetes, effectively suppresses GHS-R1a activity, both at its baseline function and in response to ghrelin”
From A Narrative Review of Current and Emerging Trends in the Treatment of Alcohol Use Disorder (2024) · cites this paper as [91]
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- Authors
- Bhattacharya, S. K., Andrews, K., Beveridge, R., Cameron, K. O., Chen, C., Dunn, M., Fernando, D., Gao, H., Hepworth, D., Jackson, V. M., Khot, V., Kong, J., Kosa, R. E., Lapham, K., Loria, P. M., Londregan, A. T., McClure, K. F., Orr, S. T. M., Patel, J., Rose, C., Saenz, J., Stock, I. A., Storer, G., VanVolkenburg, M., Vrieze, D., Wang, G., Xiao, J., & Zhang, Y.
- Affiliations
- Pfizer (United States) (US)
- Corresponding author
- Bhattacharya, Samit K.
- ORCID
- Venue
- ACS Medicinal Chemistry Letters
- Publisher
- American Chemical Society (ACS)
- Published
- 2014-02-24
- Volume
- 5
- Issue
- 5
- Pages
- 474-479
- ISSN
- 1948-5875 (ISSN-L)
- PMC
- PMC4027753
- OpenAlex
- W2332302569
- Cited by
- 73
- References
- 40
- Citations by year
- 2026: 6 · 2025: 4 · 2024: 9 · 2023: 4 · 2022: 6 · 2021: 3 · 2020: 4 · 2019: 9 · 2018: 5 · 2017: 3 · 2016: 7 · 2015: 6 · 2014: 7
- FWCI
- 7.51
- Type
- journal article
- Language
- en
- Open access
- green
- www.ncbi.nlm.nih.gov
- Locations
- ACS Medicinal Chemistry Letters (publishedVersion)
- PubMed Central (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes Treatment and Management
- Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Regulation of Appetite and Obesity
- Health Sciences › Medicine › Surgery › Pancreatic function and diabetes
- Keywords
- growth hormone secretagogue receptor, inverse agonists, orally bioavailable drugs, glucose-stimulated insulin secretion, islets, off-target selectivity, pharmacokinetics, drug discovery
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