8-K

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)

November 27, 2007

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 8.01 Other Events

On November 27, 2007, the Company issued a press release announcing that its common stock will trade on the NASDAQ Capital Market under the symbol “PHST,” starting at the opening of market on November 27, 2007. A copy of the press release is attached as Exhibit 99.1 to this current report and is incorporated herein by reference.

Item 9.01 Financial Statements and Exhibits

(d) Exhibits

Exhibit No.	Description
99.1	Press Release of Pharsight Corporation dated November 27, 2007

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: November 27, 2007	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 November 27, 2007

EX-99.1

Exhibit 99.1

Contacts:
Investors	Media
EVC Group	EVC Group
Jennifer Beugelmans, (646) 201-5447	Jen Saunders, (646) 201-5431
Doug Sherk, (415) 896-6820

PHARSIGHT COMMON STOCK TO BEGIN TRADING ON NASDAQ CAPITAL

MARKET TODAY

MOUNTAIN VIEW, Calif., November 27, 2007– Pharsight Corporation (Nasdaq:PHST), a leading provider of software, strategic consulting, and regulatory services for optimizing clinical drug development, announced today that its common stock will trade on the Nasdaq Capital Market under the symbol “PHST,” starting at the opening of market today, November 27, 2007. The stock previously traded on the OTC Bulletin Board under the symbol PHRS.OB.

About Pharsight Corporation

Pharsight Corporation develops and markets integrated products and services that enable pharmaceutical and biotechnology companies to achieve significant and enduring improvements in the development and use of therapeutic products. Pharsight’s goal is to help customers reduce the time, cost and risk of drug development, as well as optimize the post-approval marketing and use of pharmaceutical products.

Pharsight’s approach enhances the fundamental element of drug development success: strong decision-making. By adopting the Pharsight approach, customers acquire a new decision-making process with the potential to systematically improve every level and phase of their business and scientific processes. Pharsight Corporation is headquartered in Mountain View, California. Information about Pharsight is available at http://www.pharsight.com.

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