This Day On The Street
Continue to site right-arrow
ADVERTISEMENT
This account is pending registration confirmation. Please click on the link within the confirmation email previously sent you to complete registration.
Need a new registration confirmation email? Click here
TheStreet Open House

Gauging Ziopharm's Chances for Positive Sarcoma Drug Trial Results

NEW YORK ( TheStreet) -- Biotech investors love the thrill and drama surrounding the release of phase III study results. Ziopharm Oncology (ZIOP - Get Report) is about to provide just that with the release of top-line results for its PICASSO-3 study in the last week in March.

Ziopharm is developing palifosfamide for the treatment of advanced soft tissue sarcomas (STS), a rare form of cancer affecting approximately 10,000 people in the U.S. annually. Palifosfamide is an active form of an existing chemotherapy drug called ifosfamide frequently used in the treatment of STS. Unfortunately, ifosfamide has serious side effects when used at high doses or when combined with other forms of chemotherapy such as doxorubicin, a drug considered standard of care. Palifosfamide appears to lack such toxicities and can be given safely in combination with other chemotherapies without incremental side effects, thus making it an attractive agent in the treatment of STS.

In the majority of cases, STS is not cured and eventually spreads to other organs or parts of the body. The prognosis for patients with metastatic STS is very poor, with expected survival typically about one year. New, more potent treatments are needed that will help control the disease and improve survival outcomes for these patients.

Prior to launching the current palifosfamide PICASSO-3 study, Ziopharm conducted a phase II study of palifosfamide in STS dubbed PICASSO. This was a randomized, multi-center, open-label study of patients with unresectable or metastatic STS randomized to receive palifosfamide plus doxorubicin or doxorubicin alone. The two arms of the study were well matched for age and tumor type. The primary end point was progression-free survival (PFS) and was highly positive: Median PFS was 7.8 months in the palifosfamide-doxorubicin arm vs. 4.4 months for doxorubicin alone. The additional of palifosfamide to doxorubicin reduced the risk of tumor progression by 57% compared to doxorubicin alone. The partial response rate for the palifosfamide-doxorubicin was 23% vs. 9% for doxorubicin. There were no major differences in safety between the two arms indicating that the combination of palifosfamide and doxorubicin was safe.

Based on the positive data generated in the phase II PICASSO study, many Ziopharm investors are optimistic that equally positive results will be announced soon from the PICASSO-3 phase III study. Like PICASSO, the PICASSO-3 study compares the combination of palifosfamide plus doxorubicin against doxorubicin alone, with PFS as the primary endpoint. Ziopharm only has to replicate the results in PICASSO for the PICASSO-3 study to be successful.

1 of 3

Check Out Our Best Services for Investors

Action Alerts PLUS

Portfolio Manager Jim Cramer and Director of Research Jack Mohr reveal their investment tactics while giving advanced notice before every trade.

Product Features:
  • $2.5+ million portfolio
  • Large-cap and dividend focus
  • Intraday trade alerts from Cramer
Quant Ratings

Access the tool that DOMINATES the Russell 2000 and the S&P 500.

Product Features:
  • Buy, hold, or sell recommendations for over 4,300 stocks
  • Unlimited research reports on your favorite stocks
  • A custom stock screener
Stocks Under $10

David Peltier uncovers low dollar stocks with serious upside potential that are flying under Wall Street's radar.

Product Features:
  • Model portfolio
  • Stocks trading below $10
  • Intraday trade alerts
14-Days Free
Try it NOW
Only $9.95
Try it NOW
14-Days Free
Try it NOW

Check Out Our Best Services for Investors

Dividend Stock Advisor

David Peltier identifies the best of breed dividend stocks that will pay a reliable AND significant income stream.

Product Features:
  • Diversified model portfolio of dividend stocks
  • Updates with exact steps to take - BUY, HOLD, SELL
Trifecta Stocks

Every recommendation goes through 3 layers of intense scrutiny—quantitative, fundamental and technical analysis—to maximize profit potential and minimize risk.

Product Features:
  • Model Portfolio
  • Intra Day Trade alerts
  • Access to Quant Ratings
Options Profits

Our options trading pros provide over 100 monthly option trading ideas and strategies to help you become a well-seasoned trader.

Product Features:
  • Actionable options commentary and news
  • Real-time trading community
Try it NOW
Try it NOW
Try it NOW
To begin commenting right away, you can log in below using your Disqus, Facebook, Twitter, OpenID or Yahoo login credentials. Alternatively, you can post a comment as a "guest" just by entering an email address. Your use of the commenting tool is subject to multiple terms of service/use and privacy policies - see here for more details.
Submit an article to us!
SYM TRADE IT LAST %CHG
ZIOP $11.61 1.44%
AAPL $126.37 2.53%
FB $83.20 -0.13%
GOOG $552.03 0.67%
TSLA $190.57 3.01%

Markets

DOW 17,976.31 +263.65 1.49%
S&P 500 2,086.24 +25.22 1.22%
NASDAQ 4,947.4410 +56.2220 1.15%

Partners Compare Online Brokers

Free Reports

Free Newsletters from TheStreet

My Subscriptions:

After the Bell

Before the Bell

Booyah! Newsletter

Midday Bell

TheStreet Top 10 Stories

Winners & Losers

Register for Newsletters
Top Rated Stocks Top Rated Funds Top Rated ETFs