| May 18, 2011 | Alan Gilbert Direct Phone: 612-672-8381 Direct Fax: 612-642-8381 Alan.Gilbert@maslon.com |
VIA EDGAR
Securities and Exchange Commission
Judiciary Plaza
450 Fifth Street, N.W.
Washington, DC 20549
| Re: | ZIOPHARM Oncology, Inc. (the “Company”) |
Registration Statement on Form S-3
Contemporaneously with the filing of this correspondence, the Company has filed with the Commission a Registration Statement on Form S-3). Please direct any comments or questions regarding the Registration Statement to Mr. Richard Bagley, the Company’s President, Chief Operating Officer and Chief Financial Officer, by telephone at (617) 259-1978 or by fax at (617) 241-2855. You may also contact the undersigned, as counsel to the Company, by telephone at (612) 672-8381 or by fax at (612) 642-8381.
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| | | Regards, | |
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| | | Alan M. Gilbert, Esq. | |
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| cc: (via email): | Dr. Jonathan Lewis |
Richard Bagley
Tyler Cook
Kevin Lafond
