نتایج جستجو برای: artesunate

تعداد نتایج: 1720  

2016
Voravuth Somsak Preeyanuch Borkaew Chokdee Klubsri Kittiyaporn Dondee Panatda Bootprom Butsarat Saiphet

Due to the emergence and spread of malaria parasite with resistance to antimalarial drugs, discovery and development of new, safe, and affordable antimalarial are urgently needed. In this respect, medicinal plant extracts are targets to optimize antimalarial actions and restore efficacy of standard antimalarial drugs. The present study was aimed at determining the antimalarial activities of Gyn...

2012
Pascal Ringwald Harald Noedl Bryan Smith Mark Fukuda

29 Artemisinin-resistant malaria along the Thailand-Cambodian border is an important 30 public health concern, yet mechanisms of drug action and their contributions to the 31 development of resistance are poorly understood. The pharmacokinetics and 32 pharmacodynamics of oral artesunate monotherapy were explored in a dose-ranging 33 trial in an area of emerging artesunate resistance in western ...

2016
Olatunde Adesoro Constance Shumba John Kpamor Jane Achan Harriet Kivumbi John Dada Kolawole Maxwell James Tibenderana Madeline Marasciulo Prudence Hamade Olusola Oresanya Joanita Nankabirwa Ebenezer Baba

BACKGROUND Innovative strategies are needed to reduce malaria mortality in high burden countries like Nigeria. Given that one of the important reasons for this high malaria mortality is delay in receiving effective treatment, improved access to such treatment is critical. Intramuscular artesunate could be used at lower-level facilities given its proven efficacy, ease of use and excellent safety...

Journal: :PLoS Medicine 2006
Julie A Simpson Tsiri Agbenyega Karen I Barnes Gianni Di Perri Peter Folb Melba Gomes Sanjeev Krishna Srivicha Krudsood Sornchai Looareesuwan Sharif Mansor Helen McIlleron Raymond Miller Malcolm Molyneux James Mwenechanya Visweswaran Navaratnam Francois Nosten Piero Olliaro Lorrin Pang Isabela Ribeiro Madalitso Tembo Michele van Vugt Steve Ward Kris Weerasuriya Kyaw Win Nicholas J White

BACKGROUND Intra-rectal artesunate has been developed as a potentially life-saving treatment of severe malaria in rural village settings where administration of parenteral antimalarial drugs is not possible. We studied the population pharmacokinetics of intra-rectal artesunate and the relationship with parasitological responses in patients with moderately severe falciparum malaria. METHODS AN...

2009
MF Gomes MA Faiz JO Gyapong M Warsame T Agbenyega A Babiker F Baiden EB Yunus F Binka C Clerk P Folb R Hassan MA Hossain O Kimbute A Kitua S Krishna C Makasi N Mensah Z Mrango P Olliaro R Peto TJ Peto MR Rahman I Ribeiro R Samad NJ White

BACKGROUND Most malaria deaths occur in rural areas. Rapid progression from illness to death can be interrupted by prompt, effective medication. Antimalarial treatment cannot rescue terminally ill patients but could be effective if given earlier. If patients who cannot be treated orally are several hours from facilities for injections, rectal artesunate can be given before referral and acts rap...

2014
Joseph Okebe Michael Eisenhut

BACKGROUND Severe or complicated malaria is a medical emergency and people die as a result of delays in starting treatment. Most patients need parenteral treatment, and in primary healthcare facilities, where intravenous therapy is not available but intramuscular injections can be given, intramuscular quinine, artesunate, and artemether have been used before transporting patients to hospital.Ho...

Journal: :Journal of pharmaceutical and biomedical analysis 2008
Floyd E Dowell Elizabeth B Maghirang Facundo M Fernandez Paul N Newton Michael D Green

Counterfeit antimalarial drugs are found in many developing countries, but it is challenging to differentiate between genuine and fakes due to their increasing sophistication. Near-infrared spectroscopy (NIRS) is a powerful tool in pharmaceutical forensics, and we tested this technique for discriminating between counterfeit and genuine artesunate antimalarial tablets. Using NIRS, we found that ...

Journal: :Computer methods and programs in biomedicine 2014
Adam J. Hall Michael J. Chappell John A. D. Aston Stephen A. Ward

A four compartment mechanistic mathematical model is developed for the pharmacokinetics of the commonly used anti-malarial drug artesunate and its principle metabolite dihydroartemisinin following oral administration of artesunate. The model is structurally unidentifiable unless additional constraints are imposed. Combinations of mechanistically derived constraints are considered to assess thei...

2009
Richard J. Maude Katherine Plewes M. Abul Faiz Josh Hanson Prakaykaew Charunwatthana Sue J. Lee Joel Tärning Emran Bin Yunus M. Gofranul Hoque Mahatab Uddin Hasan Amir Hossain Niklas Lindegardh Nicholas P. J. Day Nicholas J. White Arjen M. Dondorp

Several antimalarials can cause significant prolongation of the electrocardiograph QT interval, which can be associated with an increased risk of potentially lethal ventricular arrhythmias. High doses of artemether and artemotil have been associated with QT prolongation in dogs, raising the possibility of a class effect with the artemisinin derivatives. Serial electrocardiograms were recorded, ...

Journal: :Lancet 2006
Frank Smithuis Moe Kyaw Kyaw Ohn Phe Khin Zarli Aye Lhin Htet Marion Barends Niklas Lindegardh Thida Singtoroj Elizabeth Ashley Saw Lwin Kasia Stepniewska Nicholas J White

BACKGROUND Artemisinin-based combinations are judged the best treatments for multidrug-resistant Plasmodium falciparum malaria. Artesunate-mefloquine is widely recommended in southeast Asia, but its high cost and tolerability profile remain obstacles to widespread deployment. To assess whether dihydroartemisinin-piperaquine is a suitable alternative to artesunate-mefloquine, we compared the saf...

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