UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of

The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported)

January 24, 2008

PHARSIGHT CORPORATION

(Exact name of registrant as specified in its charter)

Delaware

001-33846

77-0401273

(State or other jurisdiction of

incorporation)

(Commission File Number)

(IRS Employer

Identification No.)

321 E. Evelyn Avenue, 3^rd Floor

Mountain View, CA 94041-1530

(Address of principal executive offices, including zip code)

(650) 314-3800

(Registrant’s telephone number, including area code)

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

¨	Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

¨	Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

¨	Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

¨	Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Item 2.02

Results of Operations and Financial Condition

On January 24, 2008, the Company issued a press release announcing its results for the quarter ended December 31, 2007. A copy of the press release is attached as Exhibit 99.1 to this current report and is incorporated herein by reference.

The information in this report, including the exhibit hereto, shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, (the “Exchange Act”) or otherwise subject to the liabilities of that section or Sections 11 and 12(a)(2) of the Securities Act of 1933, as amended. The information contained herein and in the accompanying exhibit shall not be incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing.

Item 9.01.

Financial Statements and Exhibits

(d)

Exhibits


Exhibit No.		Description
99.1		Press Release of Pharsight Corporation dated January 24, 2008

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this Report to be signed on its behalf by the undersigned hereunto duly authorized.


	PHARSIGHT CORPORATION

Date: January 24, 2008	By:	/s/ William Frederick
	Name:	William Frederick
	Title:	Senior Vice President and Chief Financial Officer

EXHIBIT INDEX


Exhibit No.		Description
99.1		Press Release of Pharsight Corporation dated January 24, 2008

PHARSIGHT CORP 8-K