Please use this identifier to cite or link to this item: http://hdl.handle.net/2445/63540
Title: Paediatric pharmacovigilance: use of pharmacovigilance data mining algorithms for signal detection in a safety dataset of a paediatric clinical study conducted in seven African countries
Author: Erhart, Annette
Talisuna, Ambrose Otau
Bassat Orellana, Quique
Karema, Corine
Nabasumba, Carolyn
Nambozi, Michael
Tinto, Halidou
Kremsner, Peter
Meremikwu, Martin
Alessandro, Umberto d'
Speybroeck, Niko
Keywords: Farmacovigilància
Pediatria
Àfrica
Drug monitoring
Pediatrics
Africa
Issue Date: 1-May-2014
Publisher: Public Library of Science (PLoS)
Abstract: BACKGROUND: Pharmacovigilance programmes monitor and help ensuring the safe use of medicines which is critical to the success of public health programmes. The commonest method used for discovering previously unknown safety risks is spontaneous notifications. In this study we examine the use of data mining algorithms to identify signals from adverse events reported in a phase IIIb/IV clinical trial evaluating the efficacy and safety of several Artemisinin-based combination therapies (ACTs) for treatment of uncomplicated malaria in African children. METHODS: We used paediatric safety data from a multi-site, multi-country clinical study conducted in seven African countries (Burkina Faso, Gabon, Nigeria, Rwanda, Uganda, Zambia, and Mozambique). Each site compared three out of four ACTs, namely amodiaquine-artesunate (ASAQ), dihydroartemisinin-piperaquine (DHAPQ), artemether-lumefantrine (AL) or chlorproguanil/dapsone and artesunate (CD+A). We examine two pharmacovigilance signal detection methods, namely proportional reporting ratio and Bayesian Confidence Propagation Neural Network on the clinical safety dataset. RESULTS: Among the 4,116 children (6-59 months old) enrolled and followed up for 28 days post treatment, a total of 6,238 adverse events were reported resulting into 346 drug-event combinations. Nine signals were generated both by proportional reporting ratio and Bayesian Confidence Propagation Neural Network. A review of the manufacturer package leaflets, an online Multi-Drug Symptom/Interaction Checker (DoubleCheckMD) and further by therapeutic area experts reduced the number of signals to five. The ranking of some drug-adverse reaction pairs on the basis of their signal index differed between the two methods. CONCLUSIONS: Our two data mining methods were equally able to generate suspected signals using the pooled safety data from a phase IIIb/IV clinical trial. This analysis demonstrated the possibility of utilising clinical studies safety data for key pharmacovigilance activities like signal detection and evaluation. This approach can be applied to complement the spontaneous reporting systems which are limited by under reporting.
Note: Reproducció del document publicat a: http://dx.doi.org/10.1371/journal.pone.0096388
It is part of: PLoS One, 2014, vol. 9, num. 5, p. e96388
Related resource: http://dx.doi.org/10.1371/journal.pone.0096388
URI: http://hdl.handle.net/2445/63540
ISSN: 1932-6203
Appears in Collections:Articles publicats en revistes (ISGlobal)

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