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April
30, 2010
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Alan
Gilbert
Direct
Phone: 612-672-8381
Direct
Fax: 612-642-8381
Alan.Gilbert@maslon.com
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VIA
EDGAR
Securities
and Exchange Commission
Judiciary
Plaza
450 Fifth
Street, N.W.
Washington,
DC 20549
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Re:
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ZIOPHARM
Oncology, Inc. (the “Company”)
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Registration
Statement on Form S-3
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Ladies
and Gentlemen:
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Contemporaneously
with the filing of this correspondence, the Company has filed with the
Commission a Registration Statement on Form S-3 (the “Registration
Statement”).
Should
you have comments or questions regarding the Registration Statement, please
direct them to the undersigned at (612) 672-8381 (phone) or (612) 642-8381
(fax), or to Richard Bagley, the Company’s President, Chief Operating Officer
and Treasurer at (617) 259-1978 (phone) or fax: (617) 241-2855.
Regards,
/s/ Alan
M. Gilbert
Alan M.
Gilbert, Esq.
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cc:
(via email):
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Dr.
Jonathan Lewis
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Richard
Bagley
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Tyler
Cook
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