The Medical Letter on Drugs and Therapeutics
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1428
In Brief: Miltefosine for Amebic Meningoencephalitis Available from CDC
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Med Lett Drugs Ther. 2013 Oct 28;55(1428):88
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 Select a term to see related articles  Amebic meningoencephalitis   Impavido   Miltefosine 

The CDC recently announced that it will now supply the investigational drug miltefosine (Impavido – Paladin, Canada) for treatment of infections caused by free-living amebae.1 The drug was previously available in the US only from the manufacturer through an FDA Investigational New Drug (IND) application.

Meningoencephalitis caused by the free-living amebae Naegleria fowleri, Acanthamoeba spp., or Balamuthia mandrillaris, usually acquired through the nose while swimming in warm fresh water, has a mortality rate of >90% despite treatment with multiple antimicrobial drugs.2 Miltefosine is active against free-living amebae in vitro, and addition of the drug has improved survival in a small number of patients with Acanthamoeba spp. or B. mandrillaris infection. Infection with N. fowleri is especially severe; of 128 people known to be infected in the US since 1962, only one has survived. Miltefosine has not yet been shown to successfully treat N. fowleri infection.

Miltefosine is also used for treatment of visceral, cutaneous and mucosal leishmaniasis,2 and may soon be approved by the FDA for this indication.

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