Trial reportBMC medicine2016
Single low dose primaquine to reduce gametocyte carriage and Plasmodium falciparum transmission after artemether-lumefantrine in children with asymptomatic infection: a randomised, double-blind, placebo-controlled trial.
Trial report in BMC medicine, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT01935882 (A Double Blind Randomized Controlled Trial to Assess the Efficacy and Safety of Low Dose Primaquine for Clearance of Gametocytes in Asymptomatic Individuals Infected With P. Falciparum in Burkina Faso), which is not on this map. Cited by 53 papers, 2 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
A Double Blind Randomized Controlled Trial to Assess the Efficacy and Safety of Low Dose Primaquine for Clearance of Gametocytes in Asymptomatic Individuals Infected With P. Falciparum in Burkina Faso
Who cites it
53 citing papers in PubMed, 2 syntheses or guidelines pooled it.
- Single low-dose primaquine for malaria control in Africa: a systematic review of safety, efficacy and implementation barriers.BMJ global health · 2025Pooled it
- Primaquine or other 8-aminoquinolines for reducing Plasmodium falciparum transmission.The Cochrane database of systematic reviews · 2018Pooled it
- Population pharmacokinetics of primaquine and its metabolites in African males.Malaria journal · 2024Trial
- A single low dose of primaquine is safe and sufficient to reduce transmission of Plasmodium falciparum gametocytes regardless of cytochrome P450 2D6 enzyme activity in Bagamoyo district, Tanzania.Malaria journal · 2022Trial
- Efficacy, Safety and Tolerability of Pyronaridine-artesunate in Asymptomatic Malaria-infected Individuals: a Randomized Controlled Trial.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2022Trial
- Significant Efficacy of a Single Low Dose of Primaquine Compared to Stand-Alone Artemisinin Combination Therapy in Reducing Gametocyte Carriage in Cambodian Patients with Uncomplicated Multidrug-Resistant Plasmodium falciparum Malaria.Antimicrobial agents and chemotherapy · 2020Trial
- Optimal timing of primaquine to reduce Plasmodium falciparum gametocyte carriage when co-administered with artemether-lumefantrine.Malaria journal · 2020Trial
- Trial
- Safety and tolerability of single low-dose primaquine in a low-intensity transmission area in South Africa: an open-label, randomized controlled trial.Malaria journal · 2019Trial
- The tolerability of single low dose primaquine in glucose-6-phosphate deficient and normal falciparum-infected Cambodians.BMC infectious diseases · 2019Trial
- Enantiospecific pharmacokinetics and drug-drug interactions of primaquine and blood-stage antimalarial drugs.The Journal of antimicrobial chemotherapy · 2018Trial
- Plasmodium falciparum gametocyte dynamics after pyronaridine-artesunate or artemether-lumefantrine treatment.Malaria journal · 2018Trial
- Trial
- Safety and Efficacy of Adding a Single Low Dose of Primaquine to the Treatment of Adult Patients With Plasmodium falciparum Malaria in Senegal, to Reduce Gametocyte Carriage: A Randomized Controlled Trial.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2017Trial
- A Molecular Assay to Quantify Male and Female Plasmodium falciparum Gametocytes: Results From 2 Randomized Controlled Trials Using Primaquine for Gametocyte Clearance.The Journal of infectious diseases · 2017Trial
- Molecular Markers for Sensitive Detection ofThe American journal of tropical medicine and hygiene · 2017Trial
- Trial
- Trial
- Agent-based simulation of seasonal malaria chemoprevention strategy in Southern Tanzania: comparing dihydroartemisinin-piperaquine with or without primaquine.Malaria journal · 2026Article
- The Effect of Artemether-Lumefantrine Combined with a Single Dose of Primaquine onTropical medicine and infectious disease · 2026Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
15 authors.
Funding
Abstract
backgroundA single low dose (0.25 mg/kg) of primaquine is recommended as a gametocytocide in combination with artemisinin-based combination therapies for Plasmodium falciparum but its effect on post-treatment gametocyte circulation and infectiousness to mosquitoes has not been quantified.
methodsIn this randomised, double-blind, placebo-controlled trial, 360 asymptomatic parasitaemic children aged 2-15 years were enrolled and assigned to receive: artemether-lumefantrine (AL) and a dose of placebo; AL and a 0.25 mg/kg primaquine dose; or AL and a 0.40 mg/kg primaquine dose. On days 0, 2, 3, 7, 10 and 14, gametocytes were detected and quantified by microscopy, Pfs25 mRNA quantitative nucleic acid sequence based amplification (QT-NASBA), and quantitative reverse-transcriptase PCR (qRT-PCR). For a subset of participants, pre- and post-treatment infectiousness was assessed by mosquito feeding assays on days -1, 3, 7, 10 and 14.
resultsBoth primaquine arms had lower gametocyte prevalences after day 3 compared to the placebo arm, regardless of gametocyte detection method. The mean (95% confidence interval) number of days to gametocyte clearance in children with patent gametocytes on day 0 (N = 150) was 19.7 (14.6 - 24.8), 7.7 (6.3 - 9.1) and 8.2 (6.7 - 9.6) for the AL-placebo, the 0.25 mg/kg primaquine dose and the 0.40 mg/kg primaquine dose arms, respectively. While 38.0% (30/79) of selected gametocytaemic individuals were infectious before treatment, only 1/251 participant, from the AL-placebo group, infected mosquitoes after treatment.
conclusionsWe observed similar gametocyte clearance rates after 0.25 and 0.40 mg/kg primaquine doses. Infectivity to mosquitoes after AL was very low and absent in primaquine arms. CLINICALTRIALS. GOV REGISTRATION: NCT01935882.
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