ZIOPHARM Presents Positive Data From Phase I Study Of Palifosfamide In Combination With Doxorubicin At ASCO

June 3, 2009

ZIOPHARM Oncology, Inc. (Nasdaq: ZIOP) announced that it presented final data from a Phase I study of palifosfamide (ZymafosTM) in combination with doxorubicin at the 45th Annual American Society of Clinical Oncology (ASCO) meeting held in Orlando, FL, May 29th to June 2nd.

The Phase I trial of palifosfamide in combination with doxorubicin was fully enrolled with 13 patients, predominantly with soft tissue sarcoma and non-small cell lung cancer, and who had received a median of two prior therapies. Of 12 evaluable patients, there were 3 partial responses. Of the 8 patients with soft tissue sarcoma (STS) 75 percent had stable disease or better, with 2 having partial responses and 4 having prolonged stable disease. The median progression free survival (PFS) was 19 weeks.
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