Novel selective β1-adrenoceptor antagonists for concomitant cardiovascular and respiratory disease

Jillian G. Baker, Sheila M. Gardiner, Jeanette Woolard, Christophe Fromont, Gopal P. Jadhav, Shailesh N. Mistry, Kevin S.J. Thompson, Barrie Kellam, Stephen J. Hill, Peter M. Fischer

Research output: Contribution to journalArticlepeer-review

8 Scopus citations


β-Blockers reducemortality andimprove symptoms inpeople withheartdisease;however, current clinically available β-blockers have poor selectivity for the cardiac β1-adrenoceptor (AR) over the lung β2-AR. Unwanted β2-blockade risks causing life-threatening bronchospasm and reduced efficacy of β2-agonist emergency rescue therapy. Thus, current life-prolonging β-blockers are contraindicated in patients with both heart disease and asthma. Here, we describeNDD-713 and -825, novel highly β1-selective neutral antagonists with good pharmaceutical properties that can potentially overcome this limitation. Radioligand binding studies and functional assays that use human receptors expressed inChinesehamster ovary cellsdemonstrate that NDD-713 and-825 have nanomolar β1-AR affinity >500-fold β1-AR vs. β2-AR selectivity and no agonism. Studies in conscious rats demonstrate that these antagonists are orally bioavailable and cause pronounced β1-mediated reduction of heart rate while showing no effect on β2-mediated hindquarters vasodilatation. These compounds also have good disposition properties and show no adverse toxicologic effects. They potentially offer a truly cardioselective β-blocker therapy for the large number of patientswith heart and respiratory or peripheral vascular comorbidities.

Original languageEnglish (US)
Pages (from-to)3150-3166
Number of pages17
JournalFASEB Journal
Issue number7
StatePublished - Jul 2017
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Biotechnology
  • Biochemistry
  • Molecular Biology
  • Genetics


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