Angiotensin-converting Enzyme (ACE)-Inhibition and Mechanisms of Skeletal Muscle Weakness in Chronic Obstructive Pulmonary Disease (COPD)

Summary

A double blind randomised placebo controlled parallel trial of the effect of fosinopril, an angiotensin converting enzyme inhibitor, on the quadriceps muscle in 80 COPD patients who have quadriceps weakness. Patients will have a baseline assessment including measures of quadriceps strength and endurance and a quadriceps biopsy. Patients with weakness will be randomised to ACE inhibitor or placebo and re-assessed after three months of treatment. The investigators aim to show that ACE-inhibition will alter the IGF-1/AKT/FoXO/atrogene pathways involved in muscle wasting in COPD.

Timeline

Start

2009-10

Primary completion

2012-09

Completion

2012-09

Publications

• Background Hopkinson NS, Nickol AH, Payne J, Hawe E, Man WD, Moxham J, Montgomery H, Polkey MI. Angiotensin converting enzyme genotype and strength in chronic obstructive pulmonary disease. Am J Respir Crit Care Med. 2004 Aug 15;170(4):395-9. doi: 10.1164/rccm.200304-578OC. Epub 2004 Apr 29.
• Background Swallow EB, Reyes D, Hopkinson NS, Man WD, Porcher R, Cetti EJ, Moore AJ, Moxham J, Polkey MI. Quadriceps strength predicts mortality in patients with moderate to severe chronic obstructive pulmonary disease. Thorax. 2007 Feb;62(2):115-20. doi: 10.1136/thx.2006.062026. Epub 2006 Nov 7.
• Background Hopkinson NS, Eleftheriou KI, Payne J, Nickol AH, Hawe E, Moxham J, Montgomery H, Polkey MI. +9/+9 Homozygosity of the bradykinin receptor gene polymorphism is associated with reduced fat-free mass in chronic obstructive pulmonary disease. Am J Clin Nutr. 2006 Apr;83(4):912-7. doi: 10.1093/ajcn/83.4.912.
• Background Andreas S, Herrmann-Lingen C, Raupach T, Luthje L, Fabricius JA, Hruska N, Korber W, Buchner B, Criee CP, Hasenfuss G, Calverley P. Angiotensin II blockers in obstructive pulmonary disease: a randomised controlled trial. Eur Respir J. 2006 May;27(5):972-9. doi: 10.1183/09031936.06.00098105. Epub 2006 Jan 30.

Drugs

Indications