keyword
MENU ▼
Read by QxMD icon Read
search

malaria trial

keyword
https://www.readbyqxmd.com/read/28193647/piperaquine-population-pharmacokinetics-and-cardiac-safety-in-cambodia
#1
Pattaraporn Vanachayangkul, Chanthap Lon, Michele Spring, Sommethy Sok, Winita Ta-Aksorn, Chanikarn Kodchakorn, Sut-Thang Pann, Soklyda Chann, Mali Ittiverakul, Sabaithip Sriwichai, Nillawan Buathong, Worachet Kuntawunginn, Mary So, Theng Youdaline, Erin Milner, Mariusz Wojnarski, Charlotte Lanteri, Jessica Manning, Satharath Prom, Mark Haigney, Louis Cantilena, David Saunders
Despite rising resistance, dihydroartemisinin-piperaquine (DP) remains a first line therapy for uncomplicated malaria in many parts of Cambodia. While generally well-tolerated as a 3-day regimen, compressed 2-day regimens were associated with treatment-limiting cardiac repolarization effects in a recent clinical trial. To better estimate the risks of piperaquine concentration on QT interval prolongation, we pooled data from 3 randomized clinical trials between 2010 and 2014 in northern Cambodia. A population pharmacokinetic model was developed to compare exposure-response relationships between 2-day (2DP) and 3-day (3DP) regimens while accounting for differences in regimen and sample collection times between studies...
February 13, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28179024/impact-of-single-annual-treatment-and-four-monthly-treatment-for-hookworm-and-ascaris-lumbricoides-and-factors-associated-with-residual-infection-among-kenyan-school-children
#2
Stella Kepha, Charles S Mwandawiro, Roy M Anderson, Rachel L Pullan, Fred Nuwaha, Jorge Cano, Sammy M Njenga, Maurice R Odiere, Elizabeth Allen, Simon J Brooker, Birgit Nikolay
BACKGROUND: School-based deworming is widely implemented in various countries to reduce the burden of soil-transmitted helminths (STHs), however, the frequency of drug administration varies in different settings. In this study, we compared the impact of a single annual treatment and 4-monthly treatment over a follow-up among Kenyan school children, and investigated the factors associated with residual infection. METHODS: We performed a secondary analysis of data from a randomized trial investigating whether deworming for STHs alters risk of acquiring malaria...
February 9, 2017: Infectious Diseases of Poverty
https://www.readbyqxmd.com/read/28178298/the-impact-of-prenatal-exposure-to-parasitic-infections-and-to-anthelminthic-treatment-on-antibody-responses-to-routine-immunisations-given-in-infancy-secondary-analysis-of-a-randomised-controlled-trial
#3
Stephen Nash, Alexander J Mentzer, Swaib A Lule, Dennison Kizito, Gaby Smits, Fiona R M van der Klis, Alison M Elliott
BACKGROUND: Chronic parasitic infections are associated with active immunomodulation which may include by-stander effects on unrelated antigens. It has been suggested that pre-natal exposure to parasitic infections in the mother impacts immunological development in the fetus and hence the offspring's response to vaccines, and that control of parasitic infection among pregnant women will therefore be beneficial. METHODOLOGY/PRINCIPAL FINDINGS: We used new data from the Entebbe Mother and Baby Study, a trial of anthelminthic treatment during pregnancy conducted in Uganda, to further investigate this hypothesis...
February 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28176804/griseofulvin-impairs-intraerythrocytic-growth-of-plasmodium-falciparum-through-ferrochelatase-inhibition-but-lacks-activity-in-an-experimental-human-infection-study
#4
Clare M Smith, Ante Jerkovic, Thy Thuc Truong, Simon J Foote, James S McCarthy, Brendan J McMorran
Griseofulvin, an orally active antifungal drug used to treat dermatophyte infections, has a secondary effect of inducing cytochrome P450-mediated production of N-methyl protoporphyrin IX (N-MPP). N-MPP is a potent competitive inhibitor of the heme biosynthetic-enzyme ferrochelatase, and inhibits the growth of cultured erythrocyte stage Plasmodium falciparum. Novel drugs against Plasmodium are needed to achieve malaria elimination. Thus, we investigated whether griseofulvin shows anti-plasmodial activity. We observed that the intraerythrocytic growth of P...
February 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28173853/therapeutic-efficacy-and-effects-of-artemisinin-based-combination-treatments-on-uncomplicated-plasmodium-falciparum%C3%A2-malaria-associated-anaemia-in-nigerian-children-during-seven-years-of-adoption-as-first-line-treatments
#5
Akintunde Sowunmi, Kazeem Akano, Godwin Ntadom, Adejumoke I Ayede, Folasade O Ibironke, Temitope Aderoyeje, Elsie O Adewoye, Bayo Fatunmbi, Stephen Oguche, Henrietta U Okafor, Ismaila Watila, Martin Meremikwu, Philip Agomo, William Ogala, Chimere Agomo, Onikepe A Folarin, Grace O Gbotosho, Christian T Happi
BACKGROUND: Artemisinin-based combination treatments (ACTs) are the first-line treatments of uncomplicated Plasmodium falciparum malaria in many endemic areas but there are few evaluation of their efficacy in anaemic malarious children. METHODS: Therapeutic efficacy of 3-day regimens of artesunate-amodiaquine and artemether-lumefantrine was evaluated in 437 anaemic and 909 non-anaemic malarious children following treatment during a seven-year period (2008-2014)...
February 7, 2017: Infectious Diseases of Poverty
https://www.readbyqxmd.com/read/28170391/haemolysis-in-g6pd-heterozygous-females-treated-with-primaquine-for-plasmodium-vivax-malaria-a-nested-cohort-in-a-trial-of-radical-curative-regimens
#6
Cindy S Chu, Germana Bancone, Kerryn A Moore, Htun Htun Win, Niramon Thitipanawan, Christina Po, Nongnud Chowwiwat, Rattanaporn Raksapraidee, Pornpimon Wilairisak, Aung Pyae Phyo, Lily Keereecharoen, Stéphane Proux, Prakaykaew Charunwatthana, François Nosten, Nicholas J White
BACKGROUND: Radical cure of Plasmodium vivax malaria with 8-aminoquinolines (primaquine or tafenoquine) is complicated by haemolysis in individuals with glucose-6-phosphate dehydrogenase (G6PD) deficiency. G6PD heterozygous females, because of individual variation in the pattern of X-chromosome inactivation (Lyonisation) in erythroid cells, may have low G6PD activity in the majority of their erythrocytes, yet are usually reported as G6PD "normal" by current phenotypic screening tests...
February 2017: PLoS Medicine
https://www.readbyqxmd.com/read/28169112/the-economics-of-malaria-vaccine-development
#7
Magdalena Plebanski, Katie L Flanagan
Vaccines that do not take a comprehensive endpoint view of the pathogen population they want to tackle early in their developmental process, may find it financially prohibitive to redesign them once they have progressed down a costly regulatory and human trial pathway. Specifically, the lead malaria vaccine candidate RTS,S has limited ability to tackle parasite polymorphism and may induce sex-specific nonspecific effects (NSEs).
February 3, 2017: Trends in Parasitology
https://www.readbyqxmd.com/read/28166246/soluble-human-leukocyte-antigen-g-during-pregnancy-and-infancy-in-benin-mother-child-resemblance-and-association-with-the-risk-of-malaria-infection-and-low-birth-weight
#8
Tania C d'Almeida, Ibrahim Sadissou, Jacqueline Milet, Gilles Cottrell, Amandine Mondière, Euripide Avokpaho, Laure Gineau, Audrey Sabbagh, Achille Massougbodji, Kabirou Moutairou, Eduardo A Donadi, Benoit Favier, Edgardo Carosella, Philippe Moreau, Nathalie Rouas-Freiss, David Courtin, André Garcia
Human leukocyte antigen (HLA) G is a tolerogenic molecule involved in the maternal-fetal immune tolerance phenomenon. Its expression during some infectious diseases leading to immune evasion has been established. A first study conducted in Benin has shown that the production of soluble HLA-G (sHLA-G) during the first months of life is strongly correlated with the maternal level at delivery and associated with low birth weight and malaria. However sHLA-G measurements during pregnancy were not available for mothers and furthermore, to date the evolution of sHLA-G in pregnancy is not documented in African populations...
2017: PloS One
https://www.readbyqxmd.com/read/28163164/anti-pd-1-pd-l1-therapy-for-infectious-diseases-learning-from-the-cancer-paradigm
#9
REVIEW
Martin Rao, Davide Valentini, Ernest Dodoo, Alimuddin Zumla, Markus Maeurer
OBJECTIVES: Immune checkpoint pathways regulate optimal host immune responses against transformed cells; induce immunological memory and limit tissue pathology. Conversely, aberrant immune checkpoint activity signifies poor prognosis in cancer and infectious diseases. Host-directed therapy (HDT) via immune checkpoint blockade has revolutionised cancer treatment with therapeutic implications for chronic infections, thus laying the foundation for this review. METHODS: We performed online literature searches via PubMed, PubMedCentral and Google using the keywords "immune checkpoint inhibition", "host-directed therapy", "T cell exhaustion", "cancer immunotherapy", "anti-PD-1 therapy", "anti-PD-L1 therapy", "chronic infections", "antigen-specific cells", "tuberculosis", "malaria", "viral infections", "human immunodeficiency virus", "hepatitis B virus", "hepatitis C virus", "cytomegalovirus" and "Epstein-Barr virus"...
February 2, 2017: International Journal of Infectious Diseases: IJID
https://www.readbyqxmd.com/read/28153778/accelerating-the-clinical-development-of-protein-based-vaccines-for-malaria-by-efficient-purification-using-a-four-amino-acid-c-terminal-c-tag
#10
Jing Jin, Kathryn A Hjerrild, Sarah E Silk, Rebecca E Brown, Geneviève M Labbé, Jennifer M Marshall, Katherine E Wright, Sandra Bezemer, Stine B Clemmensen, Sumi Biswas, Yuanyuan Li, Aadil El-Turabi, Alexander D Douglas, Pim Hermans, Frank J Detmers, Willem A de Jongh, Matthew K Higgins, Rebecca Ashfield, Simon J Draper
Development of bespoke biomanufacturing processes remains a critical bottleneck for translational studies, in particular when modest quantities of a novel product are required for proof-of-concept Phase I/II clinical trials. In these instances the ability to develop a biomanufacturing process quickly and relatively cheaply, without risk to product quality or safety, provides a great advantage by allowing new antigens or concepts in immunogen design to more rapidly enter human testing. These challenges with production and purification are particularly apparent when developing recombinant protein-based vaccines for difficult parasitic diseases, with Plasmodium falciparum malaria being a prime example...
January 30, 2017: International Journal for Parasitology
https://www.readbyqxmd.com/read/28153038/priority-gaps-and-promising-areas-in-maternal-health-research-in-low-and-middle-income-countries-summary-findings-of-a-mapping-of-2292-publications-between-2000-and-2012
#11
EDITORIAL
Matthew F Chersich, Greg Martin
This commentary sums the findings of a series of papers on a study that mapped the global research agenda for maternal health. The mapping reviewed published interventional research across low- and middle-income countries (LMICs) from 2000 to 2012, specifically focusing on investigating the topics covered by this research, the methodologies applied, the funding landscape and trends in authorship attribution.The overarching aim underpinning the mapping activities was to evaluate whether research and funding align with causes of maternal mortality, and thereby highlight gaps in research priorities and governance...
February 2, 2017: Globalization and Health
https://www.readbyqxmd.com/read/28152989/small-quantity-lipid-based-nutrient-supplements-containing-different-amounts-of-zinc-along-with-diarrhea-and-malaria-treatment-increase-iron-and-vitamin-a-status-and-reduce-anemia-prevalence-but-do-not-affect-zinc-status-in-young-burkinabe-children-a-cluster
#12
Souheila Abbeddou, Elizabeth Yakes Jimenez, Jérome W Somé, Jean Bosco Ouédraogo, Kenneth H Brown, Sonja Y Hess
BACKGROUND: We assessed the effects of providing a package of interventions including small-quantity lipid-based nutrient supplements (SQ-LNS) containing 0, 5 or 10 mg zinc and illness treatment to Burkinabe children from 9 to 18 months of age, on biomarkers of zinc, iron and vitamin A status at 18 months and compared with a non-intervention cohort (NIC). METHODS: Using a two-stage cluster randomized trial design, communities were randomly assigned to the intervention cohort (IC) or NIC, and extended family compounds within the IC were randomly assigned to different treatment groups...
February 2, 2017: BMC Pediatrics
https://www.readbyqxmd.com/read/28143518/submicroscopic-plasmodium-prevalence-in-relation-to-malaria-incidence-in-20-villages-in-western-cambodia
#13
Rupam Tripura, Thomas J Peto, Christianne C Veugen, Chea Nguon, Chan Davoeung, Nicola James, Mehul Dhorda, Richard J Maude, Jureeporn Duanguppama, Krittaya Patumrat, Mallika Imwong, Lorenz von Seidlein, Martin P Grobusch, Nicholas J White, Arjen M Dondorp
BACKGROUND: Cambodia has seen a marked reduction in the incidence of Plasmodium falciparum over the past decade without a corresponding decline in Plasmodium vivax incidence. It is unknown to what extent local transmission is sustained by a chain of clinical and sub-clinical infections or by continued re-introduction via migration. Using an ultrasensitive molecular technique, 20 villages in western Cambodia were surveyed to detect the low season prevalence of P. falciparum and P. vivax and local treatment records were reviewed...
January 31, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28143417/early-rising-asexual-parasitaemia-in-nigerian-children-following-a-first-dose-of-artemisinin-based-combination-treatments-of-falciparum-malaria
#14
Akintunde Sowunmi, Kazeem Akano, Adejumoke I Ayede, Elsie O Adewoye, Godwin Ntadom, Bayo Fatunmbi, Grace O Gbotosho, Onikepe A Folarin, Christian T Happi
BACKGROUND: Early rising asexual parasitaemia (ERAP), initially defined as 'an increase in the parasite count over the baseline pre-treatment level during the first 24 h of treatment' of falciparum malaria with artemisinin derivatives is well documented, but there is no characterization of its risk factors, kinetics, molecular features or relationship to late-appearing anaemia (LAA) in acute falciparum malaria in African children following oral artemisinin-based combination therapies (ACTs)...
January 31, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28131394/novel-adenovirus-encoded-virus-like-particles-displaying-the-placental-malaria-associated-var2csa-antigen
#15
Anne-Marie C Andersson, Mafalda Resende, Ali Salanti, Morten A Nielsen, Peter J Holst
The malaria parasite Plasmodium falciparum presents antigens on the infected erythrocyte surface that bind human receptors expressed on the vascular endothelium. The VAR2CSA mediated binding to a distinct chondroitin sulphate A (CSA) is a crucial step in the pathophysiology of placental malaria and the CSA binding region of VAR2CSA has been identified as a promising vaccine target against placental malaria. Here we designed adenovirus encoded virus-like particles (VLP) by co-encoding Simian Immunodeficiency Virus (SIV) gag and VAR2CSA...
January 25, 2017: Vaccine
https://www.readbyqxmd.com/read/28129772/effect-of-a-short-course-of-iron-polymaltose-on-acquisition-of-malarial-parasitaemia-in-anaemic-indonesian-schoolchildren-a-randomized-trial
#16
Margaretta A Prasetyani, Quirijn de Mast, Robel Afeworki, Maria M M Kaisar, Difa Stefanie, Erliyani Sartono, Taniawati Supali, André J van der Ven
BACKGROUND: Concern exists about the safety of iron supplementation given to individuals in malarious areas. The possible unfavourable impact of iron supplementation on malaria might be less when slow-release iron compounds are used instead of ferrous salts, because no toxic non-transferrin bound iron is formed. The aim of this study was to determine the effect of iron supplementation using the slow-release iron compound iron polymaltose (IPM) on the acquisition of malarial parasitaemia...
January 28, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28129371/remote-effect-of-insecticide-treated-nets-and-the-personal-protection-against-malaria-mosquito-bites
#17
Nicolas Moiroux, Fabrice Chandre, Jean-Marc Hougard, Vincent Corbel, Cédric Pennetier
Experimental huts are part of the WHO process for testing and evaluation of Insecticide Treated Nets (ITN) in semi-field conditions. Experimental Hut Trials (EHTs) mostly focus on two main indicators (i.e., mortality and blood feeding reduction) that serve as efficacy criteria to obtain WHO interim recommendation. However, several other outputs that rely on counts of vectors collected in the huts are neglected although they can give useful information about vectors' behavior and personal protection provided by ITNs...
2017: PloS One
https://www.readbyqxmd.com/read/28126001/serology-reveals-heterogeneity-of-plasmodium-falciparum-transmission-in-northeastern-south-africa-implications-for-malaria-elimination
#18
Joseph Biggs, Jaishree Raman, Jackie Cook, Khumbulani Hlongwana, Chris Drakeley, Natashia Morris, Ishen Serocharan, Eunice Agubuzo, Philip Kruger, Aaron Mabuza, Alpheus Zitha, Elliot Machaba, Maureen Coetzee, Immo Kleinschmidt
BACKGROUND: It is widely acknowledged that modifications to existing control interventions are required if South Africa is to achieve malaria elimination. Targeting indoor residual spraying (IRS) to areas where cases have been detected is one strategy currently under investigation in northeastern South Africa. This seroprevalence baseline study, nested within a targeted IRS trial, was undertaken to provide insights into malaria transmission dynamics in South Africa and evaluate whether sero-epidemiological practices have the potential to be routinely incorporated into elimination programmes...
January 26, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28122622/efficacy-of-text-message-reminders-on-paediatric-malaria-treatment-adherence-and-their-post-treatment-return-to-health-facilities-in-kenya-a-randomized-controlled-trial
#19
Ambrose O Talisuna, Amos Oburu, Sophie Githinji, Josephine Malinga, Beatrice Amboko, Philip Bejon, Caroline Jones, Robert W Snow, Dejan Zurovac
BACKGROUND: Short Message Service (SMS) reminders have been suggested as a potential intervention for improving adherence to medications and health facility attendance. METHODS: An open-label, randomized, controlled trial to test the efficacy of automated SMS reminders in improving adherence to artemether-lumefantrine (AL) and post-treatment attendance in comparison with standard care was conducted at four health facilities in western Kenya. Children below five years of age with uncomplicated malaria were randomized to intervention (SMS reminders) or control groups...
January 25, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28121670/effect-of-antiretroviral-therapy-on-malaria-incidence-in-hiv-infected-ugandan-adults
#20
Ronnie P Kasirye, Heiner Grosskurth, Paula Munderi, Jonathan Levin, Zacchaeus Anywaine, Andrew Nunn, Anatoli Kamali, Kathy Baisley
INTRODUCTION: Using the data of a trial on cotrimoxazole (CTX) cessation, we investigated the effect of different antiretroviral therapy (ART) regimens on the incidence of clinical malaria. METHODS: During the cotrimoxazole cessation trial (ISRCTN44723643), HIV-infected Ugandan adults with CD4 at least 250 cells/μl were randomized to receive either CTX prophylaxis or placebo and were followed for a median of 2.5 years. Blood slides for malaria microscopy were examined at scheduled visits and at unscheduled visits when the participant felt unwell...
February 20, 2017: AIDS
keyword
keyword
93752
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"