MALARIA, FALCIPARUM
Conditions
Keywords
MALARIA, FALCIPARUM, MALAWI, ARTEMETHER-LUMEFANTRINE, ARTESUNATE-AMODIAQUINE
Brief summary
This study was designed to determine the efficacy of both artemether-lumefantrine and artesunate-amodiaquine (but not to compare the efficacies of the two drugs) for the treatment of uncomplicated Plasmodium falciparum malaria at Machinga, Nkhotakota, and Karonga District Hospitals- Malawi.
Detailed description
Background: Malaria is a cause of substantial morbidity and mortality in Malawi. Prompt and effective treatment of uncomplicated malaria remains a key strategy to reduce the public health burden of malaria. Due to the rising resistance to and declining efficacy of sulfadoxine-pyrimethamine, the first-line treatment for uncomplicated malaria from 1993 to 2007, the National Malaria Control Program (NMCP) revised the national treatment guidelines in 2007 and again in 2013. The revised treatment guidelines recommend artemether-lumefantrine as the first-line treatment for uncomplicated malaria and artesunate-amodiaquine as a second-line treatment for uncomplicated malaria. Data from Malawi suggests that these drugs remain efficacious. In a study conducted in 2004-2006 in Blantyre, artemether-lumefantrine was found to be efficacious. A more recent assessment of artemether-lumefantrine in vivo efficacy conducted in six sites in Malawi in 2009 also suggests that the standard formulation artemether-lumefantrine remains highly efficacious. In addition, both the dispersible formulation of artemether-lumefantrine (Coartem-D™) and artesunate-amodiaquine were extremely well tolerated and safe in studies conducted in Malawi as well as in other Sub-Saharan African countries. Given the potential for development of parasite resistance, it is imperative to continue to monitor the efficacy of these drugs as long as they remain the recommended treatment regimens. Objective: Determine the efficacy of artemether-lumefantrine and co-formulated artesunate-amodiaquine for the treatment of uncomplicated Plasmodium falciparum malaria at Machinga, Nkhotakota, and Karonga District Hospitals- Malawi Methods: A randomized drug efficacy trial will be conducted in Malawi. The trial will include 453 febrile children 6-59 months old with confirmed uncomplicated P. falciparum infection, seeking care at Machinga, Nkhotakota, and Karonga District Hospitals; 151 patients will be enrolled at each site (113 for artemether-lumefantrine and 38 for co-formulated artesunate-amodiaquine). Patients will be randomized to receive treatment with either the dispersible formulation of artemether-lumefantrine at a dose of 2/12 mg/kg body weight of artemether and lumefantrine, respectively, per dose, given twice a day for 3 days; or co-formulated artesunate-amodiaquine at a dose of 4 mg/kg/day artesunate and 10 mg/kg/day amodiaquine once a day for 3 days. Clinical and parasitological parameters will be monitored over a 28-day follow-up period to evaluate drug efficacy.
Interventions
Dispersible formulation of artemether-lumefantrine (Coartem-D™; 20mg artemether/120mg lumefantrine per tablet, Novartis, Switzerland) administered twice a day for 3 days according to manufacturer recommended dosing for weight
Co-formulated artesunate-amodiaquine (25mg artesunate/67.5mg amodiaquine and 50mg artesunate/135mg amodiaquine tablets) administered once a day for 3 days, according to manufacturer recommended dosing for weight
Sponsors
Kamuzu University of Health Sciences
Centers for Disease Control and Prevention
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
6 Months to 59 Months
Healthy volunteers
No
Inclusion criteria
* age between 6 to 59 months * mono-infection with P. falciparum detected by microscopy * parasitaemia of 1,000-200,000/µl asexual forms * presence of axillary temperature ≥ 37.5 °C or history of fever during the past 24 h * ability to swallow oral medication * ability and willingness to comply with the study protocol for the duration of the study and to comply with the study visit schedule * informed consent from the parent or guardian of the child
Exclusion criteria
* presence of general danger signs in children aged 6-59 months or signs of severe falciparum malaria according to the definitions of World Health Organization * mixed or mono-infection with another Plasmodium species detected by microscopy * presence of severe malnutrition (defined as a child whose growth standard is below -3 z-score) * presence of febrile conditions due to diseases other than malaria (e.g. measles, acute lower respiratory tract infection, severe diarrhoea with dehydration) or other known underlying chronic or severe diseases (e.g. cardiac, renal and hepatic diseases, HIV/AIDS) * regular medication that may interfere with antimalarial pharmacokinetics * history of hypersensitivity reactions or contraindications to any of the medicines being tested or used as alternative treatments
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Adequate clinical and parasitological response (ACPR) | 28 days | Absence of parasitaemia on day 28, assessed by microscopy, irrespective of axillary temperature, in patients who did not previously meet any of the criteria of early treatment failure, late clinical failure or late parasitological failure |
Countries
Malawi
Outcome results
None listed