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01.12.2012 | Research | Ausgabe 1/2012 Open Access

Malaria Journal 1/2012

Pharmacovigilance of artemether-lumefantrine in pregnant women followed until delivery in Rwanda

Zeitschrift:
Malaria Journal > Ausgabe 1/2012
Autoren:
Stephen Rulisa, Nadine Kaligirwa, Steven Agaba, Corine Karema, Petra F Mens, Peter J de Vries
Wichtige Hinweise

Competing interests

The authors declare that they have no competing interests.

Authors’ contribution

SR: Conception and design of the study, supervised data collection, draft of manuscript, analysis of data and manuscript writing. NK: participated in data collection, coordination and data entry. SA: participated in data collection and data entry. CK: Protocol writing. PFM: Conception and design of the study, draft of manuscript, analysis of data and writing of the manuscript. PJD: Conception and design of the study, draft of manuscript, analysis of data and writing of the manuscript. All authors read and approved the final manuscript

Abstract

Background

The World Health Organization presently recommends Artemisinin-based combination therapy (ACT) as first-line therapy for uncomplicated P. falciparum malaria. Many malaria-endemic countries, including Rwanda, have adopted these treatment guidelines. The Artemisinin derivative Artemether, in combination with lumefantrine, is currently used in Rwanda for malaria during the second and third trimesters of pregnancy. Safety data on the use of ACT in pregnancy are still limited though and more data are needed.

Methods

In this pharmacovigilance study, the exposed group (pregnant women with malaria given artemether-lumefantrine), and a matched non-exposed group (pregnant women without malaria and no exposure to artemether-lumefantrine) were followed until delivery. Data were collected at public health centres all over Rwanda during acute malaria, routine antenatal visits, after hospital delivery or within 48 hours after home delivery. Information gathered from patients included routine antenatal and peri-partum data, pregnancy outcomes (abortions, stillbirths, at term delivery), congenital malformations and other adverse events through history taking and physical examination of both mothers and newborns.

Results

The outcomes for the total sample of 2,050 women were for the treatment (n = 1,072) and control groups (n = 978) respectively: abortions: 1.3% and 0.4%; peri-natal mortality 3.7% and 2.8%; stillbirth 2.9% and 2.4%; neonatal death [less than or equal to]7 days after birth 0.5% and 0.4%; premature delivery 0.7% and 0.3%; congenital malformations 0.3% and 0.3%. A total of 129 obstetric adverse events in 127 subjects were reported (7.3% in the treatment group, 5.0% in the control group). In a multivariate regression model, obstetric complications were more frequent in the treatment group (OR (95% CI): 1.38 (0.95, 2.01)), and in primigravidae (OR (95% CI) 2.65 (1.71, 4.12) and at higher age (OR per year: 1.05 (1.01-1.09).

Conclusions

There were no specific safety concerns related to artemether-lumefantrine treatment for uncomplicated falciparum malaria in pregnancy. However, more obstetric complications were observed in the treatment group. These increased occurrence of complications could, however, be caused by the malaria episode itself, but further assessment is required.
Literatur
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