UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, DC 20549

FORM 10-QSB
 
x    QUARTERLY REPORT UNDER SECTION 13 OR 15(d)
OF THE SECURITIES EXCHANGE ACT OF 1934
For the quarterly period ended March 31, 2007

OR

o   TRANSITION REPORT UNDER SECTION 13 OR 15(d)
OF THE SECURITIES EXCHANGE ACT OF 1934
For the transition period from _______ to _______
 
Commission File Number 0-32353

ZIOPHARM Oncology, Inc.
(Exact Name of Small Business Issuer as Specified in Its Charter)
 
Delaware
 
84-1475642
(State or Other Jurisdiction of Incorporation or Organization)
 
(IRS Employer Identification No.)
 
 
 
1180 Avenue of the Americas, 19th  Floor, New York, NY
 
10036
(Address of Principal Executive Offices)
 
(Zip Code)

(646) 214-0700
(Issuer’s Telephone Number, Including Area Code)

(Former Name, Former Address and Former Fiscal Year, if Changed Since Last Report)

Check whether the issuer (1) has filed all reports required to be filed by Section 13 or 15(d) of the Exchange Act during the past 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes x No o

Indicate by check mark whether the registration is a shell company (as defined in Rule 12b-2 of the Exchange Act).
Yes o No x

As of May 2, 2007, there were 21,182,948 shares of the issuer’s common stock, $.001 par value per share, outstanding.

Traditional Small Business Disclosure Format (check one): Yes o  No x
 


Index

 
 
 
 
Page
PART I
 
FINANCIAL INFORMATION
 
 
 
 
 
 
 
Item 1.
 
Financial Statements
 
 
 
 
 
 
 
 
 
Balance Sheets as of March 31, 2007 (unaudited) and December 31, 2006
 
3
 
 
 
 
 
 
 
Statement of Operations for the three months ended March 31, 2007 and 2006 (unaudited) and for the period from inception (September 9, 2003) to March 31, 2007 (unaudited)
 
4
 
 
 
 
 
 
 
Statement of Cash Flows for the three months ended March 31, 2007 and 2006 (unaudited) and for the period from inception (September 9, 2003) to March 31, 2007 (unaudited)
 
5
 
 
 
 
 
 
 
Statement of Changes in Convertible Preferred Stock and Stockholders’ Equity/(Deficit) for the three months ended March 31, 2007 (unaudited) and for the year ended December 31, 2006, 2005, 2004 and for the period from inception (September 9, 2003) to December 31, 2003
 
6
 
 
 
 
 
 
 
Notes to Unaudited Financial Statements
 
7
 
 
 
 
 
Item 2.
 
Management’s Discussion and Analysis or Plan of Operation
 
12
 
 
 
 
 
Item 3.
 
Controls and Procedures
 
18
 
 
 
 
 
 
 
 
 
 
PART II   
 
OTHER INFORMATION
 
 
Item 1.
 
Legal Proceedings
 
18
 
 
 
 
 
Item 2.
 
Unregistered Sales of Equity Securities and Use of Proceeds
 
18
 
 
 
 
 
Item 3.
 
Defaults Under Senior Securities
 
18
 
 
 
 
 
Item 4.
 
Submission of Matters to a Vote of Security Holders
 
18
 
 
 
 
 
Item 5.
 
Other Information
 
18
 
 
 
 
 
 
 
 
 
 
Item 6.
 
Exhibits
 
19
 
 
Signatures
 
20
 
 
Exhibit Index
 
21


 
PART I -
FINANCIAL INFORMATION
 
ZIOPHARM Oncology, Inc.
(A Development Stage Enterprise)
Balance Sheets
 
 
 
March 31,
2007
 
December 31,
2006
 
 
 
(Unaudited)
 
 
 
ASSETS
 
 
 
 
 
Current assets:
         
Cash and cash equivalents
 
$
52,700,723
 
$
26,855,450
 
Short-term investments
   
-
   
1,555,164
 
Prepaid expenses and other current assets
   
574,424
   
462,789
 
Total current assets
   
53,275,147
   
28,873,403
 
               
Property and equipment, net
   
601,479
   
451,247
 
               
Deposits
   
9,367
   
9,367
 
Other non current assets
   
299,321
   
178,080
 
Total assets
 
$
54,185,314
 
$
29,512,097
 
               
LIABILITIES AND STOCKHOLDERS' EQUITY
         
Current liabilities:
             
Accounts payable
 
$
955,668
 
$
776,128
 
Accrued expenses
   
2,401,818
   
2,161,914
 
Total current liabilities
   
3,357,486
   
2,938,042
 
               
Deferred rent
   
40,928
   
41,078
 
               
Commitments and contingencies
         
               
Stockholders' equity:
             
Common stock, $.001 par value; 280,000,000 shares authorized; 21,182,948 and 15,272,899 shares issued and outstanding at March 31, 2007 and December 31, 2006, respectively
   
21,183
   
15,273
 
Additional paid-in capital
   
68,523,784
   
44,667,878
 
Warrants issued
   
20,503,894
   
15,071,101
 
Deficit accumulated during the development stage
   
(38,261,961
)
 
(33,221,275
)
Total stockholders' equity
   
50,786,900
   
26,532,977
 
               
Total liabilities and stockholders' equity
 
$
54,185,314
 
$
29,512,097
 
 
3


ZIOPHARM Oncology, Inc.
(A Development Stage Enterprise)
Statements of Operations
For the three months ended March 31, 2007 and 2006 (unaudited) and for the period from inception (September 9, 2003) through March 31, 2007 (unaudited)

 
 
For the three
months
 
For the three
months
 
For the period
from inception
 (September 9, 2003)
 
   
ended
 
ended
 
through
 
 
 
March 31, 2007
 
March 31, 2006
 
March 31, 2007
 
   
(unaudited)
 
(unaudited)
 
(unaudited)
 
Research contract revenue
 
$
-
 
$
-
 
$
-
 
                     
Operating expenses and other income:
             
Research and development, including costs of research contracts
   
3,426,513
   
1,768,250
   
21,538,272
 
General and administrative
   
1,990,018
   
1,504,628
   
18,646,454
 
Total operating expenses 
   
5,416,531
   
3,272,878
   
40,184,726
 
                     
Loss from operations
   
(5,416,531
)
 
(3,272,878
)
 
(40,184,726
)
                     
Interest income
   
375,845
   
53,838
   
1,922,765
 
Net loss
 
$
(5,040,686
)
$
(3,219,040
)
$
(38,261,961
)
                     
Basic and diluted net loss per share
 
$
(0.29
)
$
(0.44
)
   
                     
Weighted average common shares outstanding used to compute basic and diluted net loss per share
   
17,636,919
   
7,269,501
       
 
4


ZIOPHARM Oncology, Inc.
 
(A Development Stage Enterprise)
 
Statements of Cash Flows
 
For the three months ended March 31, 2007 and 2006 and for the period from inception (September 9, 2003) through March 31, 2007
(unaudited)
 
 
 

For the
three months
 

For the
three months
 
For the period
from inception
(September 9, 2003)
 
 
 
ended
 
ended
 
through
 
 
 
March 31, 2007
 
March 31, 2006
 
March 31, 2007
 
Cash flows from operating activities:
 
 
 
 
 
 
 
Net loss
 
$
(5,040,686
)
$
(3,219,040
)
$
(38,261,961
)
Adjustments to reconcile net loss to net cash
             
used in operating activities:
                   
Depreciation and amortization
   
69,131
   
36,631
   
378,236
 
Non-cash stock-based compensation
   
323,694
   
300,674
   
4,008,224
 
Loss on disposal of fixed assets
   
-
   
1,166
   
(1,165
)
Change in operating assets and liabilities:
                   
(Increase) decrease in:
             
Prepaid expenses and other current assets
   
(111,635
)
 
(84,295
)
 
(574,424
)
Other noncurrent assets
   
(121,241
)
 
(857
)
 
(299,321
)
Deposits
   
-
   
-
   
(9,367
)
Increase (decrease) in:
             
Accounts payable
   
179,541
   
(291,090
)
 
955,668
 
Accrued expenses
   
239,904
   
24,258
   
2,401,818
 
Deferred rent
   
(150
)
 
879
   
40,928
 
Net cash used in operating activates
   
(4,461,442
)
 
(3,231,674
)
 
(31,361,364
)
                     
Cash flows from investing activities:
                   
Purchases of property and equipment
   
(219,363
)
 
(69,865
)
 
(978,550
)
Decrease (increase) in short-term investments
   
1,555,164
   
(4,500,000
)
 
-
 
Net cash provided by (used in) investing activities
   
1,335,801
   
(4,569,865
)
 
(978,550
)
                     
Cash flows from financing activities:
                   
Proceeds from the exercise of stock options
   
-
   
-
   
30,007
 
Stockholders' capital contribution
   
-
   
-
   
500,000
 
Proceeds from issuance of common stock, net
   
28,970,915
   
25
   
67,751,034
 
Proceeds from issuance of preferred stock, net
   
-
   
-
   
16,759,596
 
Net cash provided by financing activities
   
28,970,915
   
25
   
85,040,637
 
                     
Net increase (decrease) in cash and cash equivalents
   
25,845,274
   
(7,801,514
)
 
52,700,724
 
                     
Cash and cash equivalents, beginning of period
   
26,855,450
   
8,880,717
   
-
 
                     
Cash and cash equivalents, end of period
 
$
52,700,724
 
$
1,079,204
 
$
52,700,724
 
 
             
Supplementary disclosure of cash flow information:
                   
Cash paid for interest
 
$
-
 
$
-
 
$
-
 
               
Cash paid for income taxes
 
$
-
 
$
-
 
$
-
 
                     
Supplementary disclosure of noncash investing and
             
financing activities:
                   
 
             
Warrants issued to placement agents and investors, in connection with with private placement
 
$
5,432,793
 
$
-
 
$
18,525,354
 
                     
Warrants issued to placement agent, in connection with
             
preferred stock issuance
 
$
-
 
$
-
 
$
1,682,863
 
 
             
Preferred stock conversion to common stock
 
$
-
 
$
-
 
$
16,759,596
 
 
             
Warrants converted to common shares
 
$
-
 
$
-
 
$
17,844
 
 
5


ZIOPHARM Oncology, Inc.
         
(Development Stage Enterprise)
       
Statement of Changes in Convertible Preferred Stock and Stockholders' Equity (Deficit)
       
For the three months ended March 31, 2007 (unaudited), for the years ended December 31, 2006, 2005, and 2004,
     
and for the period from inception (September 9, 2003) through December 31, 2003
     
  
   
Convertible Preferred Stock and Warrants
 
Stockholder's Equity (Deficit)
 
   
Series A
Convertible
Preferred Stock
 
Warrants to Purchase
Series A Convertible
Preferred Stock
 
Common Stock
 
Additional Paid-
     
Deficit Accumulated
During The
Development
 
Total
Stockholders' Equity/
 
 
 
Shares
 
Amount
 
Warrants
 
Shares
 
Amount
 
in Capital
 
Warrants
 
 Stage
 
(Deficit)
 
Stockholders' contribution,
         
 
                         
September 9, 2003
   
—  
 
$
—  
 
$
—  
   
250,487
 
$
250
 
$
499,750
 
$
—  
 
$
—  
 
$
500,000
 
Net loss
   
—  
   
—  
   
—  
   
—  
   
—  
   
—  
   
—  
   
(160,136
)
 
(160,136
)
Balance at December 31, 2003
   
—  
   
—  
   
—  
   
250,487
   
250
   
499,750
   
—  
   
(160,136
)
 
339,864
 
Issuance of common stock
   
—  
   
—  
   
—  
   
2,254,389
   
2,254
   
4,497,746
   
—  
   
—  
   
4,500,000
 
Issuance of common stock for services
   
—  
   
—  
   
—  
   
256,749
   
257
   
438,582
   
—  
   
—  
   
438,839
 
Fair value of options/warrants
                                                     
issued for nonemployee services
   
—  
   
—  
   
—  
   
—  
   
—  
   
13,240
   
251,037
   
—  
   
264,277
 
Net loss
   
—  
   
—  
   
—  
   
—  
   
—  
   
—  
          
(5,687,297
)
 
(5,687,297
)
 
                                     
Balance at December 31, 2004
   
—  
   
—  
   
—  
   
2,761,625
   
2,761
   
5,449,318
   
251,037
   
(5,847,433
)
 
(144,317
)
 
                                     
Issuance of Series A convertible preferred
                                                     
stock (net of expenses of $1,340,263 and
                                     
warrant cost of $1,682,863)
   
4,197,946
   
15,076,733
   
—  
   
—  
   
—  
   
—  
   
—  
   
—  
   
—  
 
 
                                     
Fair value of warrants to purchase Series
                                                     
A convertible preferred stock
   
—  
   
—  
   
1,682,863
   
—  
   
—  
   
—  
   
—  
   
—  
   
—  
 
Issuance of Common stock to EasyWeb
                                                     
Shareholders
   
—  
   
—  
   
—  
   
189,922
   
190
   
(190
)
 
—  
   
—  
   
—  
 
Conversion of Series A convertible
                                                     
preferred stock @ $0.001 into $0.001
                                     
common stock on September 13, 2005
                                                     
at an exchange ratio of .500974
   
(4,197,946
)
 
(15,076,733
)
 
(1,682,863
)
 
4,197,823
   
4,198
   
15,072,535
   
1,682,863
   
—  
   
16,759,596
 
Issuance of common stock for options
   
—  
   
—  
   
—  
   
98,622
   
99
   
4,716
   
—  
   
—  
   
4,815
 
Fair value of options/warrants issued for
                                     
nonemployee services
   
—  
   
—  
   
—  
   
—  
   
—  
   
54,115
   
44,640
   
—  
   
98,755
 
Net loss
   
—  
   
—  
   
—  
   
—  
   
—  
   
—  
   
—  
   
(9,516,923
)
 
(9,516,923
)
                                                       
Balance at December 31, 2005
   
—  
   
—  
   
—  
   
7,247,992
   
7,248
   
20,580,494
   
1,978,540
   
(15,364,356
)
 
7,201,926
 
                                                       
Issuance of common stock in private placement, net of expenses $2,719,395
   
—  
   
—  
   
—  
   
7,991,256
   
7,991
   
21,179,568
   
—  
   
—  
   
21,187,559
 
Issuance of warrants
   
—  
   
—  
   
—  
   
—  
   
—  
   
—  
   
13,092,561
   
—  
   
13,092,561
 
Issuance of common stock for
                                                     
services rendered
   
—  
   
—  
   
—  
   
25,000
   
25
   
106,225
   
—  
   
—  
   
106,250
 
Stock based compensation for employees
   
—  
   
—  
   
—  
   
—  
   
—  
   
2,776,408
   
—  
   
—  
   
2,776,408
 
Issuance of commom stock due to exercise of stock options
   
—  
   
—  
   
—  
   
5,845
   
6
   
25,186
    —       —      
25,192
 
Issuance of common stock due to exercise of stock warrants
   
—  
   
—  
   
—  
   
2,806
   
3
   
(3
)
  —       —      
—   
 
Net loss
   
—  
   
—  
   
—  
   
—  
   
—  
   
—  
    —      
(17,856,919
)
 
(17,856,919
)
 
                                     
Balance at December 31, 2006
   
—  
   
—  
   
—  
   
15,272,899
   
15,273
   
44,667,878
   
15,071,101
   
(33,221,275
)
 
26,532,977
 
Issuance of common stock in private placement, net of expenses $1,909,090
   
—  
   
—  
   
—  
   
5,910,049
   
5,910
   
23,532,212
   
—  
   
—  
   
23,538,122
 
Issuance of warrants
   
—  
   
—  
   
—  
   
—  
   
—  
    —      
5,432,793
   
—  
   
5,432,793
 
Stock based compensation for employees
   
—  
   
—  
   
—  
   
—  
   
—  
   
323,694
   
—  
   
—  
   
323,694
 
Net loss
   
—  
   
—  
   
—  
   
—  
   
—  
   
—  
    —      
(5,040,686
)
 
(5,040,686
)
Balance at March 31, 2007 (unaudited)
   
—  
 
$
—  
 
$
—  
   
21,182,948
 
$
21,183
 
$
68,523,784
 
$
20,503,894
 
$
(38,261,961
)
$
50,786,900
 
 
6

 
Item 1.
UNAUDITED FINANCIAL STATEMENTS
 
ZIOPHARM Oncology, Inc.
Notes to Unaudited Financial Statements
 
1.
BASIS OF PRESENTATION AND OPERATIONS
 
The financial statements included herein have been prepared by ZIOPHARM Oncology, Inc. (“ZIOPHARM” or the “Company”) without audit, pursuant to the rules and regulations of the Securities and Exchange Commission. Certain information and footnote disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States of America have been condensed or omitted pursuant to such rules and regulations. In the opinion of management, the accompanying unaudited financial statements include all adjustments (consisting of normal recurring adjustments) necessary to present fairly the financial position, results of operations and cash flows of the Company at the dates and for the periods indicated. The unaudited financial statements included herein should be read in conjunction with the audited financial statements and the notes thereto included in ZIOPHARM Oncology, Inc.’s Form 10-KSB filed on February 13, 2007 for the fiscal year ended December 31, 2006.

ZIOPHARM is a development stage biopharmaceutical company that seeks to acquire, develop and commercialize, on its own or with other commercial partners, products for the treatment of important unmet medical needs in cancer.

The Company has operated at a loss since its inception in 2003 and has no revenues. The Company anticipates that losses will continue for the foreseeable future. At March 31, 2007, the Company’s accumulated deficit was approximately $38.3 million. The Company’s ability to continue operations after its current cash resources are exhausted depends on its ability to obtain additional financing and achieve profitable operations, as to which no assurances can be given. Cash requirements may vary materially from those now planned because of changes in the focus and direction of our research and development programs, competitive and technical advances, patent developments or other developments. Additional financing will be required to continue operations after we exhaust our current cash resources and to continue our long-term plans for clinical trials and new product development.

On February 23, 2007, pursuant to subscription agreements between the Company and certain institutional and other accredited investors, the Company completed the sale of an aggregate of 5,910,049 shares of the Company’s common stock at a price of $5.225 per share in a private placement (the “2007 Offering”). In addition to these shares sold in the 2007 Offering, the Company also issued to each investor a five-year warrant to purchase, at an exercise price of $5.75 per share, an additional number of shares of common stock equal to 20 percent of the shares purchased by such investor in the 2007 Offering. In the aggregate, these warrants entitle investors to purchase an additional 1,182,015 shares of common stock. The Company estimated the fair value of these warrants at $4,724,169 using the Black-Scholes model, using an assumed risk-free rate of 4.71% and an expected life of 5 years, volatility of 93% and a dividend yield of 0%. The total gross proceeds resulting from the 2007 Offering was approximately $30.9 million, before deducting selling commissions and expenses.
 
The Company engaged Paramount BioCapital, Inc. (“Paramount”), Griffin Securities, Inc., and Oppenheimer & Co. Inc. (together, the “2007 Placement Agents”) as placement agents in connection with the 2007 Offering. In consideration for their services, the Company paid the 2007 Placement Agents aggregate cash commissions of $1,630,800 (of which $1,019,250 was paid to Paramount; see Note 4 - Related Party Transactions) and issued 5-year warrants to the 2007 Placement Agents and their designees to purchase an aggregate of 156,058 shares of the Company’s common stock at an exercise price of $5.75 per share. In connection with the 2007 offering, the Company also made cash payments of $222,000 and issued 5-year warrants to purchase 21,244 shares of the Company's common stock, at an exercise price of $5.75 per share, to a consultant pursuant to a non-circumvention provision of a prior agreement. The Company estimated the fair value of these 177,302 warrants at $708,624 using the Black-Scholes model, using an assumed risk-free rate of 4.71% and an expected life of 5 years, volatility of 93% and a dividend yield of 0%.

Pursuant to the 2007 Offering, the Company agreed to use its best efforts to (i) file a registration statement covering the resale of the shares sold in the 2007 Offering and the common stock issuable upon exercise of the investor warrants and placement agent warrants issued in the 2007 Offering within 45 days following the closing date of the 2007 Offering, and (ii) use its reasonable commercial efforts to cause the registration statement to be effective within 120 days after such final closing date. Effective January 1, 2007, the Company adopted FASB Staff Position No. EITF 00-19-2 “Accounting for Registration Payment Arrangements” "FSP EITF 00-19-2". In accordance with FSP EITF 00-19-2, the Company accounts obligations under registration payments arrangement in accordance with SFAS No. 5, "Accounting for Contingencies". Instruments subject to registration payments are accounted for without regard to the contingent obligation to make registration payments. As a result, the Company has determined that no contingent loss exists based on its history of timely annual, quarterly and registration filings. The Company intends to continue the timely compliance with all SEC filing requirements, which will keep the Company current and the shares registered.
 
7

 
1.
BASIS OF PRESENTATION AND OPERATIONS …CONTINUED
   
With respect to each investor in the 2007 Offering, the Company also agreed to use its reasonable commercial efforts to cause the registration statement to remain effective until the earliest of (i) the date on which the investor may sell all of the shares and shares issuable upon exercise of the warrants then held by the investor pursuant to Rule 144(k) of the Securities Act of 1933 without regard to volume restrictions; and (ii) such time as all of the securities held by the investor and registered under the registration statement have been sold pursuant to a registration statement, or in a transaction exempt from the registration and prospectus delivery requirements of the Securities Act of 1933 under Section 4(1) thereof so that all transfer restrictions and restrictive legends are removed upon the consummation of such sale. The 2007 Placement Agents have been afforded equivalent registration rights as the investors in the 2007 Offering with respect to the shares issuable upon exercise of the placement agent warrants. Warrants issued in the 2007 Offering are classified as equity based on the determination that the penalty for failure to register is not uneconomic. On March 1, 2007, the Company filed a registration statement on Form S-3 with the Securities and Exchange Commission. The registration statement was declared effective on March 26, 2007 rendering the resale of the shares issued in the 2007 Offering registered under the Securities Exchange Act of 1933.

The results disclosed in the Statements of Operations for the three months ended March 31, 2007 are not necessarily indicative of the results to be expected for the full year.
 
2.
RECENT ACCOUNTING PRONOUNCEMENTS
   
In July 2006, the Financial Accounting Standards Board issued Interpretation No. 48, Accounting for Uncertainty in Income Taxes. This Interpretation sets forth a recognition threshold and valuation method to recognize and measure an income tax position taken, or expected to be taken, in a tax return. The evaluation is based on a two-step approach. The first step requires an entity to evaluate whether the tax position would “more likely than not,” based upon its technical merits, be sustained upon examination by the appropriate taxing authority. The second step requires the tax position to be measured at the largest amount of tax benefit that is greater than 50 percent likely of being realized upon ultimate settlement. In addition, previously recognized benefits from tax positions that no longer meet the new criteria would no longer be recognized. The application of this Interpretation will be considered a change in accounting principle with the cumulative effect of the change recorded to the opening balance of retained earnings in the period of adoption. This Interpretation will be effective for the Company on January 1, 2007. Adoption of this new Standard, did not have a material impact on our financial position, results of operations or cash flows.
 
3.
STOCK-BASED COMPENSATION
             
On January 1, 2006, the Company adopted Statement of Financial Accounting Standards No. 123(R) (“SFAS 123R”) Share-Based Payment, using the modified prospective method, which results in the provision of SFAS 123R only being applied to the consolidated financial statements on a going-forward basis (that is, the prior period results have not been restated). Under the fair value recognition provisions of SFAS 123R, stock-based compensation cost is measured at the grant date based on the value of the award using the Black Scholes Model and is recognized as expense over the service period. Previously, the Company had followed Accounting Principles Board (APB) Opinion No. 25, Accounting for Stock Issued to Employee, and related interpretations which resulted in account for employee share options at their intrinsic value in the financial statements.

The Company recognized the full impact of its share-based payment plans in the statements of operations for the three months ended March 31, 2007 and 2006 under SFAS 123R and did not capitalize any such costs on the balance sheets. The following table presents share-based compensation expense included in the Company’s statement of operations:
 
 
 
Three months
ended March 31, 2007
 
Three months
ended March 31, 2006
 
 
 
 
 
 
 
Research and development, including costs of research contracts
 
$
143,210
 
$
27,991
 
General and administrative
   
180,484
   
272,683
 
Share based compensation expense before tax
   
323,694
   
300,674
 
Income tax benefit
   
   
 
Net compensation expense
 
$
323,694
 
$
300,674
 
 
8

 
 
4.
STOCKHOLDERS’ EQUITY

On February 23, 2007, pursuant to subscription agreements between the Company and certain institutional and other accredited investors, the Company completed the 2007 Offering in which the Company’s sold an aggregate of 5,910,049 shares of the Company’s common stock at a price of $5.225 per share. The total gross proceeds resulting from the 2007 Offering was approximately $30.9 million, before deducting selling commissions and expenses. Following the completion of the 2007 Offering, the Company has 21,182,948 shares of common stock outstanding.
 
5.
RELATED PARTY TRANSACTIONS
 
In connection with the 2007 Offering, on February 23, 2007, the Company paid Paramount cash commissions equal to 6% of the gross proceeds from the sale of the shares sold by Paramount in the 2007 Offering, resulting in a cash payment of approximately $1,019,250. In addition, the Company issued 5-year warrants to the placement agents in the 2007 Offering and their designees to purchase an aggregate of 177,302 shares (3% of the shares sold in the 2007 Offering) of the Company’s common stock, of which  97,536 at an exercise price of $5.75 per share were issued to Paramount.

Mr. Timothy McInerney, who is a member of the Board of Directors of the Company, was a full-time employee of Paramount from 1992 through March 2007. In addition, Michael Weiser, a current member of the Board of Directors of the Company, was a full-time employee of Paramount from 1998 through November 2006.

6.
STOCK OPTION PLAN
 
The Company has adopted the 2003 Stock Option Plan (the “Plan”), under which the Company had reserved for the issuance of 1,252,436 shares of its Common Stock. The Plan was approved by the Company’s stockholders on December 21, 2004. On April 26, 2006, the date of the Company’s annual stockholders meeting, the shareholders approved an amendment to the Plan increasing the total shares reserved by 750,000 shares, for a total of 2,002,436 shares.

As of March 31, 2007, there were 1,921,535 shares that are issuable under its 2003 Stock Option Plan upon exercise of outstanding options to purchase Common Stock. As of March 31, 2007, the Company had issued to our employees outstanding options to purchase up to 1,651,111 shares of the Company’s Common Stock. In addition, the Company has issued to our directors options to purchase up to 270,174 shares of the Company’s Common Stock, as well as options to a consultant in connection with services rendered to purchase up to 250 shares of the Company’s Common Stock.
 
9

 
6.
STOCK OPTION PLAN ...CONTINUED
 
Currently, stock options are granted with an exercise price equal to the closing market price of the Company’s common stock on the day before the date of grant. Stock options to employees generally vest ratably over three years and have contractual terms of ten years. Stock options to directors generally vest ratably over two or three years and have contractual terms of ten years. Stock options are valued using the Black-Scholes option valuation method and compensation is recognized based on such fair value over the period of vesting on a straight-line basis. The Company has also reserved an aggregate of 70,934 additional shares for issuance under options granted outside of the 2003 Stock Option Plan.

During three months ended March 31, 2007, the Company granted 18,500 options. Also during the three months ended March 31, 2007 the Company cancelled 10,000, while no options were exercised, under the 2003 Stock Option plan, in this period. No options were granted, cancelled, or exercised during the three months ended March 31, 2006. During the three months March 31, 2007, the Company entered into a termination agreement with an employee which accelerated the employee’s previously granted options. The Company recorded a charge of $41,663, in the three months ended March 31, 2007, as a result of the acceleration.
 
The fair value of each option award is estimated on the date of grant using the Black-Scholes option-pricing model. Assumptions regarding volatility, expected term, dividend yield and risk-free interest rate are required for the Black-Scholes model. Volatility and expected term assumptions are based on comparable Company’s historical experience. The risk-free interest rate is based on a U.S. treasury note with a maturity similar to the option award’s expected life. The assumptions used at March 31, 2007 are as follows, volatility of 93%, expected life of approximately 5 years, a dividend yield of 0% and a risk-free interest rate of 4.71%.
 
Stock option activity under the Company’s stock plan for the three-month period ended March 31, 2007 was as follows:
 
     
Number of
Shares
 
 
Weighted Average
Exercise Price
 
 
Weighted Average
Remaining Contractual
Term (Years)
 
 
Aggregate
Intrinsic Value
 
Outstanding, January 1, 2007
   
1,913,035
 
$
3.95
             
Granted
   
18,500
   
5.52
             
Exercised
   
   
             
Canceled
   
10,000
   
5.71
             
Outstanding, March 31, 2007
   
1,921,535
 
$
3.96
   
8.47
 
$
2,215,769
 
Options exercisable, March 31, 2007
   
1,228,751
 
$
3.33
   
8.12
 
$
2,189,458
 
Outstanding, March 31, 2006
   
973,639
 
$
2.56
   
8.7
 
$
2,200,200
 
Options exercisable, March 31, 2006
   
417,423
 
$
1.97
   
8.4
 
$
1,180,876
 

Stock options granted in the three months ended March 31, 2007 and 2006, had weighted average grant date fair values of $4.05 and $0, respectively. At March 31, 2007, total unrecognized compensation costs related to non-vested stock options outstanding amounted to $2,076,293. The cost is expected to be recognized over a weighted-average period of 1.67 years.
 
10

 
7.
WARRANTS
 
On February 23, 2007, as part of the 2007 Offering, the Company issued warrants to purchase 1,182,015 shares of common stock to investors and 177,302 warrants to purchase common stock to the Placement Agents and their designees. The Company estimated the fair value of the warrants at $4,724,169 and $708,624 respectively, using the Black-Scholes model, using an assumed risk-free rate of 4.71% and an expected life of 5 years, volatility of 93% and a dividend yield of 0%. The fair value of the warrants was recorded as a permanent component of shareholder’s equity.

8.
SUBSEQUENT EVENTS

On April 25, 2007, the date of the Company’s annual stockholders meeting, the shareholders approved an amendment to the Plan increasing the total shares reserved by 2,000,000 shares, for a total of 4,002,436 shares.
 
11

 
Item 2.  MANAGEMENT’S DISCUSSION AND ANALYSIS OR PLAN OF OPERATION.

Note Regarding Forward-Looking Statements
       
This Quarterly Report on Form 10-QSB contains statements that are not historical, but are forward-looking in nature, including statements regarding the expectations, beliefs, intentions or strategies regarding the future. In particular, the “Management’s Discussion and Analysis or Plan of Operation” section in Part I, Item 2 of this Quarterly Report includes forward-looking statements that reflect our current views with respect to future events and financial performance. We use words such as we “expect,” “anticipate,” “believe,” and “intend” and similar expressions to identify forward-looking statements. A number of important factors could, individually or in the aggregate, cause actual results to differ materially from those expressed or implied in any forward-looking statements. Such factors include, but are not limited to, our ability to successfully develop or commercialize our product candidates, our ability to obtain additional financing, our ability to develop and maintain customer relationships, regulatory developments relating to and the general success of our customers’ products, and our ability to protect our proprietary technology. Other risks are described under the section entitled “Risk Factors” in our Current Report on Form 10-KSB filed on February 13, 2007.

Overview:
 
ZIOPHARM Oncology, Inc. is a biopharmaceutical company that is seeking to develop and commercialize a diverse, risk-sensitive portfolio of in-licensed cancer drugs that address unmet medical needs. Our principal focus is on the licensing and development of proprietary drug candidate families that are related to cancer therapeutics that are already on the market or in development. We believe this strategy will result in lower risk and expedited drug development programs. We expect to commercialize our products on our own in North America but recognize that promising clinical trial results in cancers with a high incidence and prevalence might also be addressed in a commercial partnership with another company with the requisite financial resources. Currently, we are in phase I and/or II studies for three product candidates known as ZIO-101, ZIO-201 and ZIO-301:
 
 
ZIO-101 is an organic arsenic compound covered by issued U.S. patents and applications internationally. A form of commercially available inorganic arsenic (arsenic trioxide (Trisenox ® ) or ATO) has been approved for the treatment of acute promyelocytic leukemia (APL), a precancerous condition, and is on the compendia listing for the therapy of multiple myeloma as well as having been studied for the treatment of various other cancers. Nevertheless, ATO has been shown to be toxic to the heart, liver, and brain, limiting its use as an anti-cancer agent. Inorganic arsenic has also been shown to cause cancer of the skin and lung in humans. The toxicity of arsenic generally is correlated to its accumulation in organs and tissues. Our preclinical and clinical studies to date have demonstrated that ZIO-101 (and organic arsenic in general) is considerably less toxic than inorganic arsenic, particularly with regard to heart toxicity. In vitro testing of ZIO-101 using the National Cancer Institute’s human cancer cell panel detected activity against lung, colon, brain, melanoma, ovarian and kidney cancer. Moderate activity was detected against breast and prostate cancer. In addition to solid tumors, in vitro testing in both the National Cancer Institute’s cancer cell panel and in vivo testing in a leukemia animal model demonstrated substantial activity against hematological cancers (cancers of the blood and blood-forming tissues) such as leukemia, lymphoma, myelodysplastic syndromes and multiple myeloma. Preclinical studies have also established antiangiogenic properties of ZIO-101 and also support the use of an oral form of the drug.
 
12

 
 
   
Phase I testing of the intravenous (IV) form of ZIO-101 is still ongoing with two safety and dose finding studies to be completed in the near future. The Company has seen encouraging signs of clinical activity in both of these studies. The Company has completed the phase I portion of an ongoing phase I/II study in advanced multiple myeloma, also with encouraging signs of clinical activity. ZIOPHARM currently expects to complete multiple phase II studies by year-end, which, following discussions with appropriate health authorities, will serve as a basis for the contemplated registration trial. The Company expects to file a U.S. Investigational New Drug Application for the clinical study of an oral form of ZIO-101 in 2007.
     
 
ZIO-201, or isophosphoramide mustard (IPM), is a proprietary stabilized metabolite of ifosfamide that is also related to cyclophosphamide. A patent application for pharmaceutical composition has been filed in the U.S. and internationally. Cyclophosphamide and ifosfamide are alkylating agents. The Company believes cyclophosphamide is the most widely used alkylating agent in cancer therapy and is used to treat breast cancer and non-Hodgkin’s lymphoma. Ifosfamide has been shown to be effective in high dose by itself, or in combination in treating sarcoma and lymphoma and is approved by the FDA for testicular cancer. Although ifosfamide-based treatment generally represents the standard of care for sarcoma, it is not licensed for this indication by the U.S. Food and Drug Administration. Our preclinical studies have shown that, in animal and laboratory models, IPM evidences activity against leukemia and solid tumors. These studies also indicate that ZIO-201 has a better pharmacokinetic and safety profile than ifosfamide or cyclophosphamide, offering the possibility of safer and more efficacious therapy with ZIO-201. Ifosfamide is metabolized to IPM. In addition to IPM, another metabolite of ifosfamide is acrolein, which is toxic to the kidneys and bladder. The presence of acrolein can mandate the administration of a protective agent called mesna, which is inconvenient and expensive. Chloroacetaldehyde is another metabolite of ifosfamide and is toxic to the central nervous system, causing “fuzzy brain” syndrome for which there is currently no protective measure. Similar toxicity concerns pertain to high-dose cyclophosphamide, which is widely used in bone marrow and blood cell transplantation. Because ZIO-201 is independently active without acrolein or chloroacetaldehyde metabolites, the Company believes that the administration of ZIO-201 may avoid many of the toxicities of ifosfamide and cyclophosphamide without compromising efficacy. In addition to anticipated lower toxicity, ZIO-201 (and without the co-administration of mesna) may have other advantages over ifosfamide. In preclinical studies ZIO-201 likely cross-links DNA differently than ifosfamide or cyclophosphamide metabolites, resulting in a different activity profile. Moreover, in some instances ZIO-201 appears to show activity in ifosfamide- and/or cyclophosphamide-resistant cancer cells.
 
 
 
 
 
Phase I and phase II testing of the intravenous (“IV”) form of ZIO-201 is ongoing in the U.S. IPM has been administered without the “uroprotectant” mesna and the toxicities associated with acrolein and chloroacetaldehyde have not been observed. Electrolyte imbalances similar to those seen with ifosfamide have occurred in the higher dose cohorts. The Company has seen encouraging signs of clinical activity in the phase I study. The Company has completed a phase I study in advanced sarcoma and a phase II is ongoing. ZIOPHARM expects to complete phase I and phase II studies by year-end, which, following discussions with appropriate health authorities, will serve as a basis for contemplated registration trial. The Company also expects to file a U.S. Investigational New Drug Application for an oral form of ZIO-201 in 2007.

13

 
 
 
ZIO-301 (indibulin) is a novel small molecular weight tubulin polymerization inhibitor that has been acquired from Baxter Healthcare. A phase I study is currently underway in the Netherlands with indibulin to evaluate safety, pharmacokinetics (PK), maximum tolerated dose (MTD) and dose limiting toxicity (DLT) in patients with advanced solid tumors; an Investigational New Drug Application has been filed in the United States and a phase I study is expected to initiate following FDA review.
 
The microtubule component tubulin is one of the more well established anti-tumor targets in the treatment of cancer today. A number of drugs are on the market that target tubulin, for example paclitaxel (Taxol ®) and the vinca alkaloid family (vincristine, vinorelbine). The use of these drugs is associated with important toxicities. Notably, paclitaxel causes significant peripheral neurotoxicity. In contrast, indibulin has not shown peripheral neurotoxicity either in preclinical testing or in the clinic to date.

This class of agents is typically the mainstay of chemotherapy in a wide variety of cancer indications. Indibulin is an orally available compound with preclinical data that indicates significant and broad activity (including taxane refractory and multi-drug resistant cell lines and xenografts) and it is potentially safer than other tubulin inhibitors (no neurotoxicity at curative doses in animals and in the ongoing phase I trial). At the current time, the Company anticipates pursuing a Fast Track development program in a niche indication following the completion of phase II testing. Potential initial indications would include but are not limited to bladder, head & neck, prostate, colorectal, and renal cancer. Registration in one of these indications would then be followed by label expansion via trials that will have been initiated in anticipation of registration. In addition, the availability of an IV formulation would further expand the market opportunity and will be explored in 2007. Availability of an oral formulation of indibulin creates significant commercial opportunity, since no oral formulations of paclitaxel or related compounds are currently on the market.
 
Although we intend to continue with clinical development of ZIO-101 for advanced myeloma and ZIO-201 for advanced sarcoma, and ZIO-301 in solid tumors, the successful development of our product candidates is highly uncertain. Product development costs and timelines can vary significantly for each product candidate and are difficult to accurately predict. Various statutes and regulations also govern or influence the manufacturing, safety, labeling, storage, record keeping and marketing of each product. The lengthy process of seeking these approvals, and the subsequent compliance with applicable statutes and regulations, require the expenditure of substantial resources. Any failure by us to obtain, or any delay in obtaining, regulatory approvals could materially adversely affect our business. To date, we have not received approval for the sale of any drug candidates in any market and, therefore, have not generated any revenues from our drug candidates.
 
14

 

Plan of Operation
 
Our plan of operation for the next twelve months is to continue implementing our business strategy, including the clinical development of our three lead product candidates, ZIO-101, ZIO-201 and ZIO-301. We also intend to expand our drug candidate portfolio by seeking additional drug candidates through in-licensing arrangements. We expect our principal expenditures during those 12 months to include:

Fees and milestone payments required under the license agreements relating to our existing product candidates;
 
 
Clinical trial expenses, including the costs incurred with respect to the conduct of clinical trials for ZIO-101 and ZIO-201, ZIO-301, and preclinical costs associated with back-up candidates ZIO-102 and ZIO-202;
 
 
Costs related to the scale-up and manufacture of ZIO-101, ZIO-201, and ZIO-301;
 
 
Rent for our facilities; and
 
 
General corporate and working capital, including general and administrative expenses.

As part of our plan for additional employees, we anticipate hiring several additional full-time employees in the regulatory, clinical and finance functions. In addition, we intend to use senior advisors, consultants, clinical research organizations and third parties to perform certain aspects of product development, manufacturing, clinical and preclinical development, and regulatory and quality assurance functions.

At our current and desired pace of clinical development of ZIO-101, ZIO-201, ZIO-301, and other back-up candidates and ongoing in-licensing efforts over the next 12 months we expect to spend approximately $2.8 million on preclinical and regulatory expenses, $16.8 million on clinical expenses (including clinical trials and milestone payments that we expect to be triggered under the license agreements relating to our product candidates), approximately $5.4 million on manufacturing costs, approximately $520,000 on facilities, rent (including additional space not presently contracted) and other facilities related costs, and approximately $6.5 million on general corporate and working capital. With the proceeds from the common stock offering of February 23, 2007, we believe that we currently have sufficient capital to fund development and commercialization activities of ZIO-101, ZIO-201, and ZIO-301 late into the fourth quarter of 2008.

Product Candidate Development and Clinical Trials

ZIO-101. ZIO-101, organic arsenic, is being developed presently to treat advanced myeloma and the phase II portion of a phase I/II trial in advanced multiple myeloma is underway. Phase II trials in liver cancer and other hematological malignancies have also been initiated. We will continue to explore the use of ZIO-101 in other phase II trials as well as exploring different dosing schedules and forms. Preclinical development will continue with a back-up compound designated as ZIO-102. Additional compounds are being synthesized under an extension of our agreement with The University of Texas M.D. Anderson Cancer Center and the Texas A&M University System. Technology transfer and scale-up for the commercial manufacture of the active pharmaceutical ingredient, its lyophilization, and final product specification for both the IV and oral forms will continue through the period leading to the expected registration trial. Preclinical development will continue with additional compounds.

ZIO-201. ZIO-201, stabilized isophosphoramide mustard, is being developed presently to treat advanced sarcoma. As a follow-on to the ongoing phase I trial, a phase II trial in advanced sarcoma is well underway. Other trials, including different dosing schedules and additional forms are in the advanced planning stage. We expect to initiate a registration trial in advanced sarcoma following the completion of phase II study. Technology transfer and scale-up for the commercial manufacture of the active pharmaceutical ingredient, its lyophilization, and final product specification (for both the IV and oral forms) will continue. Preclinical development will continue with back-up analogues.
 
ZIO-301. ZIO-301, a novel anti-cancer agent that targets mitosis like the taxanes, is available as an oral and potentially an intravenous form. The oral form is currently in a phase I trial in Europe, with trials expected to initiate in 2007 under an Investigational New Drug Application filed in the United States.

15

 
 
Results of Operations for the three months ended March 31, 2007 versus March 31, 2006

Revenues.  We had no revenues for three months ended March 31, 2007 and 2006.

Research and development expenses.  For the three months ended March 31, 2007, research and development expenses increased by $1,658,263, or 93.8%, to $3,426,513 from $1,768,250 in the three months ended March 31, 2006. The increase is attributable to an increase of approximately $811,000 in manufacturing related costs and an increase of approximately $466,000 in the cost of clinical trials. The increase in expenses is also attributable to an increase of approximately $115,000 in stock compensation expense related to stock options and approximately $206,000 in employee related costs.
 
General and administrative expenses. For the three months ended March 31, 2007, general and administrative expenses increased by $485,390, or 32.3%, to $1,990,018 from $1,504,628 in the three months ended March 31, 2006. The increase is attributable to an increase of approximately $130,000 in investor relation services and filing fees and an increase of approximately $260,000 in payroll and related expenses.

Other income (expense). Other income increased by $322,007, or 598.0%, to $375,845 in the three months ended March 31, 2007 from $53,838 recorded in the three months ended March 31, 2006. Other income, during the three months ended March 31, 2007 and 2006, was comprised primarily of interest income. The increase is due to higher cash balances, which was derived from the February 23, 2007 and May 3, 2006 private placements that were made available for investing purposes.

Net income (loss). For the reasons described above, the net loss increased by $1,821,646, or 56.6%, to $(5,040,686) in the three months ended March 31, 2007 from $3,219,040 for the same period of 2006.

Liquidity and Capital Resources

As of March 31, 2007, we had approximately $52.7 million in cash and cash equivalents. With the proceeds from our 2007 common stock offering, which was completed on February 23, 2007, we believe we currently have sufficient capital to fund development and commercialization activities of ZIO-101, ZIO-201, and ZIO-301 late into the fourth quarter of 2008. Because our business does not generate any cash flow, however, we will need to raise additional capital to continue development of the product candidates beyond that time or to fund development efforts related to new product candidates. We anticipate raising such additional capital by either borrowing money or by selling shares of our capital stock. To the extent additional capital is not available when we need it, we may be forced to abandon some or all of our development and commercialization efforts, which would have a material adverse effect on the prospects of our business. Further, our assumptions relating to the expected costs of development and commercialization and timeframe for completion are dependent on numerous factors other than available financing, including significant unforeseen delays in the clinical trial and regulatory approval process, which could be extremely costly. In addition, our estimates assume that we will be able to enroll a sufficient number of patients in each clinical trial.
 
The Company anticipates that losses will continue for the foreseeable future. At March 31, 2007, the Company’s accumulated deficit was approximately $38.3 million. The Company has incurred significant losses from operations and has an accumulated deficit that raises substantial doubt about the Company’s ability to continue as a going concern. The Company’s ability to continue operations after its current cash resources are exhausted depends on its ability to obtain additional financing and achieve profitable operations, as to which no assurances can be given.

·
Our actual cash requirements may vary materially from those now planned because of a number of factors including:

·
Changes in the focus and direction of our research and development programs, including the acquisition and pursuit of development of new product candidates;

·
Competitive and technical advances;

·
Costs of commercializing any of the product candidates;

·
Costs of filing, prosecuting, defending and enforcing any patent claims and any other intellectual property rights; or other developments
 
In order to continue our long-term plans for clinical trials and new product development, we will need to raise additional capital to continue to fund our research and development as well as operations after we exhaust our current cash resources. We expect to finance our cash needs through the sale of equity securities and possibly strategic collaborations or debt financings or through other sources that may be dilutive to existing stockholders. There can be no assurance that any such financing can be realized by the Company, or if realized, what the terms thereof may be, or that any amount that the Company is able to raise will be adequate to support the Company’s working capital requirements until it achieves profitable operations. If we are unable to raise additional funds when needed, we may not be able to market our products as planned or continue development and regulatory approval of our products, or we could be required to delay, scale back or eliminate some or all our research and development programs.
 
16

 
Since inception, our primary source of funding for our operations has been the private sale of our securities. During the three months ended March 31, 2007, we received gross proceeds of approximately $30.9 million ($28,970,915) net of cash issuance costs) as a result of a sale of an aggregate of 5,910,049 shares (the “Shares”) of the Company’s common stock at a price of $5.225 per Share in a private placement (the “2007 Offering”). In addition to the Shares, the Company also issued to each investor a five-year warrant (each a “Warrant”) to purchase, at an exercise price of $5.75 per share, an additional number of shares of common stock equal to 20 percent of the Shares purchased by such investor in the 2007 Offering. In the aggregate, these Warrants entitle investors to purchase an additional 1,182,015 shares of common stock. The Company estimated the fair value of these warrants at $4,724,169 using the Black-Scholes model, using an assumed risk-free rate of 4.71% and an expected life of 5 years, volatility of 93% and a dividend yield of 0%. The total gross proceeds resulting from the 2007 Offering was approximately $30.9 million, before deducting selling commissions and expenses.

During the year ended December 31, 2006, we received gross proceeds of approximately $37 million ($34,280,121 net of cash issuance costs) as a result of the sale of an aggregate of 7,991,256 shares (the “Shares”) of common stock, at a price of $4.63 per Share, in a private offering (the “2006 Offering”) that was completed on May 3, 2006. In addition to the Shares, the Company also issued to each investor a five-year warrant (each a “Warrant”) to purchase, at an exercise price of $5.56 per share, an additional number of shares of common stock equal to 30 percent of the Shares purchased by such investor in the Offering. In the aggregate, these Warrants entitle investors to purchase an additional 2,397,392 shares of common stock. The Company engaged Paramount BioCapital, Inc. and Griffin Securities, Inc. (the “Placement Agents”) as co-placement agents in connection with the Offering. In consideration for their services, the Company paid the Placement Agents and certain selected dealers engaged by the Placement Agents aggregate cash commissions of $2,589,966 and issued 7-year warrants to the Placement Agents and their designees to purchase an aggregate of 799,126 shares at an exercise price of $5.09 per share. The Company also agreed to reimburse the Placement Agents for their accountable expenses incurred in connection with the Offering.

During the year ended December 31, 2005, we received $4,815 proceeds from the exercise of stock options and gross proceeds of approximately $18.1 million ($16.8 net of issuance costs) as a result of the sale by ZIOPHARM, Inc. of Series A Convertible Preferred Stock in a private placement transaction. During the twelve months ended December 31, 2004, we received proceeds of approximately $4.5 million as a result of the sale by ZIOPHARM, Inc. of common stock in a private placement transaction.

At March 31, 2007, working capital was approximately $50.0 million, compared to working capital of approximately $25.9 million at December 31, 2006. The increase in working capital reflects the proceeds from the February 2007 offset by the use of funds for operations.

Capital expenditures were approximately $219,000 for the three months ended March 31, 2007. We anticipate capital expenditures of approximately $500,000 for the fiscal year ended December 31, 2007.

The Company’s significant lease obligation payable is as follows:
 
 
 
Payments due by Period
 
 
 
Total
 
Less than 1 Year
 
1 - 3 Years
 
3 - 5 Years
 
After 5 Years
 
Operating lease
 
$
758,110
 
$
269,831
 
$
455,384
 
$
32,895
   
-
 

Critical Accounting Policies and Significant Estimates

The preparation of financial statements requires the Company to make estimates and judgments that affect the reported amounts of assets, liabilities, revenue and expenses, and related disclosure of contingent assets and liabilities. On an on-going basis, the Company evaluates its estimates, including those related to accounting for stock-based compensation and research and development activities. The Company bases its estimates on historical experience and on various other assumptions that are believed to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. Actual results may differ from these estimates under difference assumptions or conditions.

Research and Development

Research and development expenses consist primarily of salaries and related personnel costs, fees paid to consultants and outside service providers for preclinical, clinical, and manufacturing development, legal expenses resulting from intellectual property prosecution and organizational affairs and other expenses relating to the design, development, testing, and enhancement of our product candidates. We expense our research and development costs as they are incurred. General and administrative expenses consist primarily of salaries and related expenses for executive, finance and other administrative personnel, recruitment expenses, professional fees and other corporate expenses, including business development and general legal activities.
 
Stock-based compensation

Our results include non-cash compensation expense as a result of the issuance of stock option and warrants grants. On January 1, 2006, the Company adopted Statement of Financial Accounting Standards No. 123(R) (“SFAS 123R”) Share-Based Payment, using the modified prospective method, which results in the provision of SFAS 123R only being applied to the consolidated financial statements on a going-forward basis (that is, the prior period results have not been restated). Under the fair value recognition provisions of SFAS 123R, stock-based compensation cost is measured at the grant date based on the value of the award using the Black Scholes Model and is recognized as expense over the service period. Previously, the Company had followed Accounting Principles Board (APB) Opinion No. 25, Accounting for Stock Issued to Employees, and related interpretations which resulted in account for employee share options at their intrinsic value in the financial statements. The Company’s most critical estimates consist of accounting for stock-based compensation.

Off-Balance Sheet Arrangements
 
We do not have any “off-balance sheet agreements,” as that term is defined by SEC regulation.
 
 
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Item 3. CONTROLS AND PROCEDURES  
 
Under the supervision and with the participation of our management, including our Chief Executive Officer and Chief Financial Officer, we conducted an evaluation of our disclosure controls and procedures, as such term is defined under Rule 13a-15(e) or 15d-15(e) promulgated under the Securities Exchange Act of 1934, as amended (the Exchange Act), as of the end of the period covered by this report. Based on this evaluation, our Chief Executive Officer and Chief Financial Officer concluded that our disclosure controls and procedures are effective.
 
There have been no changes in our internal control over financial reporting identified in connection with the evaluation required by paragraph (d) of Rule 13a-15 or 15d-15 promulgated under the Exchange Act that occurred during the last fiscal quarter that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.
 
PART II - OTHER INFORMATION
 
Item 1. Legal Proceedings

No response required.
 
Item 2. Unregistered Sales of Equity Securities and Use of Proceeds

No response required.
 
Item 3. Defaults Upon Senior Securities.

No response required.
 
Item 4. Submission of Matters to a Vote of Security Holders

No response required.
 
Item 5. Other Information

Adoption of Amendment to 2003 Stock Option Plan 

At the Company’s annual stockholders’ meeting held on April 25, 2007, the Company’s stockholders approved the adoption of an amendment to the 2003 Stock Option Plan (the “2003 Plan”) that increases the number of shares of common stock available for issuance under the 2003 Plan from 2,002,436 shares to 4,002,436 shares. A copy of such amendment is filed as Exhibit 10.1 to this report.
 
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Item 6. EXHIBITS
 
Exhibit No.
 
Description
10.1
 
Amendment No. 2 to the 2003 Stock Option Plan
31.1
 
Certification of Chief Executive Officer
31.2
 
Certification of Chief Financial Officer
32.1
 
Certifications of Chief Executive Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
32.2
 
Certifications of Chief Financial Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
 
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SIGNATURES

In accordance with the requirements of the Exchange Act, the registrant caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.
 
 
 
 
ZIOPHARM ONCOLOGY, INC.
 
 
 
 
 
 
Date: May 2, 2007
By:  
/s/ Jonathan Lewis
Jonathan Lewis, M.D., Ph.D.
Chief Executive Officer
(Principal Executive Officer)
 
Date: May 2, 2007
By:  
/s/ Richard Bagley
Richard Bagley
Chief Financial Officer
(Principal Financial and Accounting Officer)

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EXHIBIT INDEX
 
Exhibit No.
 
Description
 
 
 
10.1
 
Amendment No. 2 to the 2003 Stock Option Plan
     
31.1
 
Certification of Chief Executive Officer pursuant to Securities Exchange Act Rule 13a-15(e)/15d-15(e) as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
     
31.2
 
Certification of Chief Financial Officer pursuant to Securities Exchange Act Rule 13a-15(e)/15d-15(e) as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
     
32.1
 
Certification of Chief Executive Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
     
32.2
 
Certification of Chief Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
 
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