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New malaria drug requires just one dose and appears twice as effective as existing regimen

Date:
October 17, 2012
Source:
American Chemical Society
Summary:
Scientists are reporting development of a new malaria drug that, in laboratory tests, has been twice as effective as the best current medicine against this global scourge and may fight off the disease with one dose, instead of the multiple doses that people often fail to take.

Scientists are reporting development of a new malaria drug that, in laboratory tests, has been twice as effective as the best current medicine against this global scourge and may fight off the disease with one dose, instead of the multiple doses that people often fail to take.

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A report on the drug appears in ACS' Journal of Medicinal Chemistry.

Gary Posner and colleagues explain that malaria continues to kill almost 1 million people annually. The best existing treatment is so-called artemisinin combination therapy (ACT). It requires patients to take pills every day for several days, and many patients fail to complete the regimen. As a result, these patients don't get better, and it opens the door for malaria parasites to develop resistance to ACT. To stop that from happening, the researchers developed a new type of ACT that could stop malaria in a single dose.

They describe a series of new compounds they developed that, given once, are more effective than traditional artemisinin-derived substances. One of the new compounds, when combined with mefloquine, killed off all of the parasites in some mice with just a single oral dose and allowed those mice to live almost twice as long as those treated with conventional ACT.

The authors acknowledge funding from the National Institutes of Health, the Johns Hopkins Malaria Research Institute and the Bloomberg Family Foundation.


Story Source:

The above story is based on materials provided by American Chemical Society. Note: Materials may be edited for content and length.


Journal Reference:

  1. Alexander M. Jacobine, Jennifer R. Mazzone, Rachel D. Slack, Abhai K. Tripathi, David J. Sullivan, Gary H. Posner. Malaria-Infected Mice Live Until at Least Day 30 after a New Artemisinin-Derived Thioacetal Thiocarbonate Combined with Mefloquine Are Administered Together in a Single, Low, Oral Dose. Journal of Medicinal Chemistry, 2012; 55 (17): 7892 DOI: 10.1021/jm3009986

Cite This Page:

American Chemical Society. "New malaria drug requires just one dose and appears twice as effective as existing regimen." ScienceDaily. ScienceDaily, 17 October 2012. <www.sciencedaily.com/releases/2012/10/121017141803.htm>.
American Chemical Society. (2012, October 17). New malaria drug requires just one dose and appears twice as effective as existing regimen. ScienceDaily. Retrieved November 28, 2014 from www.sciencedaily.com/releases/2012/10/121017141803.htm
American Chemical Society. "New malaria drug requires just one dose and appears twice as effective as existing regimen." ScienceDaily. www.sciencedaily.com/releases/2012/10/121017141803.htm (accessed November 28, 2014).

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