Treatment of West Nile Virus With MGAWN1
Treatment of West Nile Virus With MGAWN1
This study will test a drug called MGAWN1 for the treatment of West Nile infections.
The objective of this study is to evaluate the safety, efficacy, and pharmacokinetics of
 MGAWN1 in subjects with West Nile Fever or a syndrome compatible with West Nile Neuroinvasive
 Disease (WNND) [encephalitis, meningitis, or acute flaccid paralysis]. Subjects can be
 enrolled based on a syndrome compatible with WNND, and do not need documented West Nile virus
 infection.
Inclusion Criteria:

 1. Provide written informed consent

 2. Be >=18 years of age at the time of enrollment

 3. Have West Nile Fever defined as:

 1. temperature >38°C, headache, AND

 2. positive diagnostic test for WNV Ribonucleic acid or Immunoglobulin M with serum
 or cerebrospinal fluid (CSF)

 OR have West Nile Neuroinvasive Disease (includes neurological signs and/or symptoms
 of West Nile meningitis, encephalitis, and/or acute flaccid paralysis), defined as:

 • West Nile encephalitis (must meet criteria a and b below)

 1. Encephalopathy (depressed or altered level of consciousness, lethargy, or
 personality change lasting 24 hours)

 2. CSF pleocytosis >=5 cells/mm^3

 AND/OR

 • West Nile meningitis (must meet criteria c and d)

 3. Clinical signs of meningeal inflammation, including nuchal rigidity, Kernig or
 Brudzinski sign, photophobia, or phonophobia

 4. CSF pleocytosis >=5 cells/mm^3

 AND/OR

 • Acute flaccid paralysis (must meet criteria e and f)

 5. Acute onset of limb weakness with marked progression over 48 hours

 6. Two or more of the following conditions:

 -  asymmetry to weakness

 -  areflexia or hyporeflexia of affected limb(s)

 -  absence of pain, paresthesia, or numbness in affected limb(s)

 -  CSF pleocytosis >=5 cells/mm^3

 -  CSF elevated protein levels (4.5 g/L)

 -  electrodiagnostic studies consistent with an anterior horn cell process

 -  or abnormal increased signal in the anterior gray matter as documented by
 spinal cord magnetic resonance imaging

 4. Have epidemiological factors consistent with West Nile Virus infection (must meet
 criterion a or b below):

 1. Appropriate time of year for West Nile Virus transmission in region

 2. Travel history to a region where West Nile Virus is active

 5. Develop signs and/or symptoms within 14 days before study enrollment.

 6. If female of childbearing potential or male and in a sexual relationship with a female
 of childbearing potential, agree (or have partner agree) to practice abstinence or use
 2 of the following methods of contraception for 120 days (approximately 4 months)
 after study drug administration:

 1. Oral contraceptives, or other form of hormonal birth control including hormonal
 vaginal rings or transdermal patches

 2. An intrauterine device

 3. Barrier contraception (condom) with a spermicide (i.e., female subject ensures
 use by male partner[s])

 4. Any other equivalent method of contraception (as judged by the investigator)