alexa Effectiveness and safety of ICL670 in iron-loaded patients with thalassaemia: a randomised, double-blind, placebo-controlled, dose-escalation trial.


Journal of Clinical Toxicology

Author(s): NisbetBrown E, Olivieri NF, Giardina PJ, Grady RW, Neufeld EJ,

Abstract Share this page

Abstract BACKGROUND: Transfusional iron overload is a potentially fatal complication of the treatment of thalassaemia. We aimed to investigate short-term efficacy, pharmacokinetic/pharma- codynamic (PK/PD) relations, and safety of ICL670, a novel, tridentate, orally active iron chelator. METHODS: We enrolled 24 patients and divided them into three cohorts consisting of a minimum of seven individuals. Patients were admitted to a metabolic unit and consumed a diet with a defined content of iron. Two patients in each cohort were randomly allocated placebo. Five or more patients received one daily dose of ICL670 at 10, 20, or 40 mg x kg(-1) x day(-1), from day 1 to 12. Net iron excretion (NIE) was measured between days 1 and 12. Primary objectives included assessment of safety and tolerability (measured by adverse events and clinical laboratory monitoring), pharmacokinetics (measured as drug and drug-iron complex), and cumulative net iron excretion (measured by faecal and urine output minus food input). Analysis was for efficacy. FINDINGS: ICL670 was absorbed promptly and was detectable in the blood for 24 h. Exposure (area under the curve of plasma concentration) to ICL670 at pharmacokinetic steady state was proportional to dose. All three doses resulted in positive NIE. The NIE achieved at 20mg x kg(-1) day(-1) would prevent net iron accumulation in most patients transfused with 12-15 mL packed red-blood-cells kg(-1) month(-1), equivalent to 0.3-0.5 mg iron kg(-1) x day(-1). A linear relation (PK/PD) was recorded between exposure to ICL670 and total iron excretion, by contrast with placebo (r2=0.54, p<0.0001). Skin rashes were noted in four patients treated at 20 and 40 mg x kg(-1) x day(-1), and one patient also developed grade 2 transaminitis. INTERPRETATION: ICL670 given once daily at 20 mg/kg seems to be an effective orally active iron chelator and is reasonably well tolerated. Long-term studies are now necessary to establish the practical contribution of this drug. This article was published in Lancet and referenced in Journal of Clinical Toxicology

Relevant Expert PPTs

Relevant Speaker PPTs

Recommended Conferences

Relevant Topics

Peer Reviewed Journals
Make the best use of Scientific Research and information from our 700 + peer reviewed, Open Access Journals
International Conferences 2017-18
Meet Inspiring Speakers and Experts at our 3000+ Global Annual Meetings

Contact Us

Agri, Food, Aqua and Veterinary Science Journals

Dr. Krish

1-702-714-7001 Extn: 9040

Clinical and Biochemistry Journals

Datta A

1-702-714-7001Extn: 9037

Business & Management Journals


1-702-714-7001Extn: 9042

Chemical Engineering and Chemistry Journals

Gabriel Shaw

1-702-714-7001 Extn: 9040

Earth & Environmental Sciences

Katie Wilson

1-702-714-7001Extn: 9042

Engineering Journals

James Franklin

1-702-714-7001Extn: 9042

General Science and Health care Journals

Andrea Jason

1-702-714-7001Extn: 9043

Genetics and Molecular Biology Journals

Anna Melissa

1-702-714-7001 Extn: 9006

Immunology & Microbiology Journals

David Gorantl

1-702-714-7001Extn: 9014

Informatics Journals

Stephanie Skinner

1-702-714-7001Extn: 9039

Material Sciences Journals

Rachle Green

1-702-714-7001Extn: 9039

Mathematics and Physics Journals

Jim Willison

1-702-714-7001 Extn: 9042

Medical Journals

Nimmi Anna

1-702-714-7001 Extn: 9038

Neuroscience & Psychology Journals

Nathan T

1-702-714-7001Extn: 9041

Pharmaceutical Sciences Journals

John Behannon

1-702-714-7001Extn: 9007

Social & Political Science Journals

Steve Harry

1-702-714-7001 Extn: 9042

© 2008-2017 OMICS International - Open Access Publisher. Best viewed in Mozilla Firefox | Google Chrome | Above IE 7.0 version