Safety and efficacy of artesunate-amodiaquine combined with either methylene blue or primaquine in children with falciparum malaria in Burkina Faso: a randomized controlled trial
Artemisinin resistance is threatening global efforts for malaria control and elimination. Primaquine (PQ) and methylene blue (MB) are gametocytocidal drugs that can be combined with artemisinin-based combination therapy (ACT) to reduce malaria transmission, including resistant strains. Children (6-5...
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| Hauptverfasser: | , , , , , , , , , , , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
October 10, 2019
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| In: |
PLOS ONE
Year: 2019, Jahrgang: 14, Heft: 10 |
| ISSN: | 1932-6203 |
| DOI: | 10.1371/journal.pone.0222993 |
| Online-Zugang: | Verlag, kostenfrei, Volltext: https://doi.org/10.1371/journal.pone.0222993 Verlag, kostenfrei, Volltext: https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0222993 
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| Verfasserangaben: | Margarida Mendes Jorge, Lucienne Ouermi, Peter Meissner, Guillaume Compaoré, Boubacar Coulibaly, Eric Nebie, Johannes Krisam, Christina Klose, Meinhard Kieser, Albrecht Jahn, Guangyu Lu, Umberto D`Alessandro, Ali Sié, Frank Peter Mockenhaupt, Olaf Müller |
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| 245 | 1 | 0 | |a Safety and efficacy of artesunate-amodiaquine combined with either methylene blue or primaquine in children with falciparum malaria in Burkina Faso |b a randomized controlled trial |c Margarida Mendes Jorge, Lucienne Ouermi, Peter Meissner, Guillaume Compaoré, Boubacar Coulibaly, Eric Nebie, Johannes Krisam, Christina Klose, Meinhard Kieser, Albrecht Jahn, Guangyu Lu, Umberto D`Alessandro, Ali Sié, Frank Peter Mockenhaupt, Olaf Müller |
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| 520 | |a Artemisinin resistance is threatening global efforts for malaria control and elimination. Primaquine (PQ) and methylene blue (MB) are gametocytocidal drugs that can be combined with artemisinin-based combination therapy (ACT) to reduce malaria transmission, including resistant strains. Children (6-59 months) with uncomplicated falciparum malaria in Burkina Faso were treated with artesunate-amodiaquine (AS-AQ) and randomized to MB (15 mg/kg/day for 3 days) or PQ (0.25 mg/kg at day 2) with the aim to show non-inferiority of the MB regimen with regard to haematological recovery at day 7 (primary endpoint). MB-AS-AQ could not be shown to be non-inferior to PQ-AS-AQ (mean Hb difference between treatment groups on day 7 was -0.352, 95% CI -0.832-0.128, p = 0.0767), however, haemoglobin recovery following treatment was alike in the two study arms (day 7: mean 0.2±1.4 g/dl vs. 0.5±0.9 g/dl, p = 0.446). Occurrence of adverse events was similar in both groups, except for vomiting, which was more frequent in the MB than in the PQ arm (20/50 vs 7/50, p = 0.003). Adequate clinical and parasitological response was above 95% in both groups, but significantly more asexual parasites were cleared in the MB arm compared to the PQ arm already on day 1 (48/50, 96%, vs 40/50, 80%, p = 0.014). Moreover, P. falciparum gametocyte prevalence and density were lower in the MB arm than in the PQ arm, which reached statistical significance on day 2 (prevalence: 2/50, 4%, vs 15/49, 31%, p<0.001; density: 9.6 vs 41.1/μl, p = 0.024). However, it should be considered that PQ was given only on day 2. MB-ACT appears to be an interesting alternative to PQ-ACT for the treatment of falciparum malaria. While there is a need to further improve MB formulations, MB-ACT may already be considered useful to reduce falciparum malaria transmission intensity, to increase treatment efficacy, and to reduce the risk for resistance development and spread. Trial registration: ClinicalTrials.gov NCT02851108. | ||
| 650 | 4 | |a Antimalarials | |
| 650 | 4 | |a Artemisinin | |
| 650 | 4 | |a Gametocytes | |
| 650 | 4 | |a Malaria | |
| 650 | 4 | |a Malarial parasites | |
| 650 | 4 | |a Methylene blue | |
| 650 | 4 | |a Plasmodium | |
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