The dual PDE3/PDE4 phosphodiesterase inhibitor RPL554 produces more complete bronchodilator responses than the beta2-agonist salbutamol and the anti-muscarinic agent ipratropium bromide, alone and in combination, in guinea-pig isolated trachea

Domenico Spina (London, United Kingdom), Radhakrishnan Venkatasamy, Clive Page, Domenico Spina

Source: International Congress 2015 – Novel treatments for cough, asthma, COPD and bronchiectasis
Session: Novel treatments for cough, asthma, COPD and bronchiectasis
Session type: Thematic Poster Session
Number: 3960
Disease area: Airway diseases

Congress or journal article abstractE-poster

Rating: 0
You must login to grade this presentation.

Share or cite this content

Citations should be made in the following way:
Domenico Spina (London, United Kingdom), Radhakrishnan Venkatasamy, Clive Page, Domenico Spina. The dual PDE3/PDE4 phosphodiesterase inhibitor RPL554 produces more complete bronchodilator responses than the beta2-agonist salbutamol and the anti-muscarinic agent ipratropium bromide, alone and in combination, in guinea-pig isolated trachea. Eur Respir J 2015; 46: Suppl. 59, 3960

You must login to share this Presentation/Article on Twitter, Facebook, LinkedIn or by email.

Member's Comments

No comment yet.
You must Login to comment this presentation.


Related content which might interest you:
Pharmacological interaction between glycopyrronium bromide and indacaterol fumarate on the human airways tone
Source: International Congress 2016 – Preclinical pharmacology: drug targets and mechanisms of action
Year: 2016

Pharmacological characterization of the mechanism of action leading to synergism between glycopyrronium bromide and indacaterol fumarate
Source: International Congress 2016 – Airway pharmacology: drug targets and mode of action
Year: 2016

Bronchodilator activity of the combination of salbutamol hemisuccinate and methatropium iodide compared with monotherapy in preclinical studies
Source: International Congress 2015 – Novel treatments for cough, asthma, COPD and bronchiectasis
Year: 2015

Synergistic bronchoprotective activity of the long-acting beta 2-agonist olodaterol with tiotropium (long-acting M3 antagonist) and ciclesonide (inhaled steroid) on the ovalbumin-induced bronchoconstriction in anaesthetized guinea pigs
Source: Annual Congress 2011 - Understanding disease and drug mechanisms
Year: 2011


Interaction between aclidinium bromide and formoterol fumarate; effects on human bronchial smooth muscle
Source: International Congress 2014 – Novel evidence relating to respiratory treatment development
Year: 2014

Budesonide prevents cytokine-induced decrease of the relaxant response to formoterol but not to salmeterol in mouse trachea
Source: Annual Congress 2009 - Translational research/biomarkers
Year: 2009


First-dose bronchodilating effect of phosphodiesterase-4 (PDE-4) inhibition by cilomilast (Ariflo) with or without coadministration of salbutamol and/or ipratropium in COPD patients
Source: Eur Respir J 2001; 18: Suppl. 33, 35s
Year: 2001

Effect of indacaterol, a novel long-acting β2-agonist, on isolated human bronchi
Source: Eur Respir J 2007; 29: 575-581
Year: 2007



RPL554, an inhaled PDE3/4 inhibitor, causes comparable bronchodilation to high dose nebulised salbutamol in asthmatics with fewer systemic effects
Source: International Congress 2016 – Novel mechanisms and treatment modalities in asthma
Year: 2016

Long-lasting interaction study between RPL554 and glycopyrronium bromide on human isolated bronchi
Source: International Congress 2014 – Novel approaches and evidence for drug development in respiratory diseases
Year: 2014

Synergistic effects between glycopyrronium bromide and indacaterol on a muscarinic agonist-induced contraction in airway smooth muscle
Source: Annual Congress 2012 - The best of pharmacology treatment for asthma and COPD
Year: 2012


Endothelin-1-mediated contraction of mouse small airways is resistant to salbutamol, but sensitive to rosiglitazone
Source: Annual Congress 2013 –Preclinical models for the development of new drugs for respiratory diseases
Year: 2013

Glycopyrrolate exerts medium-duration bronchodilator activity in guinea-pig and human airways
Source: Eur Respir J 2005; 26: Suppl. 49, 216s
Year: 2005

The long-acting β2-agonist formoterol re-establishes the anti-proliferative effect of glucocorticoids in asthmatic airway smooth muscle cells (ASMC)
Source: Annual Congress 2011 - Understanding disease and drug mechanisms
Year: 2011



Interaction between RPL554 and glycopyrronium bromide in small human airways
Source: International Congress 2014 – Novel approaches and evidence for drug development in respiratory diseases
Year: 2014

Pharmacokinetics of PF-00610355, a novel inhaled long-acting β2-adrenoreceptor agonist
Source: Annual Congress 2009 - Next generation bronchodilators
Year: 2009


Combination study of tiotropium and olodaterol in human precision-cut lung slices
Source: Annual Congress 2013 –New drugs in respiratory medicine
Year: 2013


Abediterol has higher bronchodilatory potency and reduced cardiac effects versus other long-acting beta2-agonists in dogs
Source: International Congress 2014 – Rationale behind respiratory drug development
Year: 2014

Interaction between aclidinium bromide and formoterol fumarate in small human airways
Source: International Congress 2014 – Novel approaches and evidence for drug development in respiratory diseases
Year: 2014

Impairment of β2-adrenoceptor agonist relaxation by cytokines is prevented by concomitant glucocorticoid treatment for formoterol but not for salmeterol in mouse trachea
Source: Eur Respir J 2007; 30: Suppl. 51, 714s
Year: 2007