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):  December 12, 2006

United Therapeutics Corporation

(Exact Name of Registrant as Specified in Charter)

Delaware

 

000-26301

 

52-1984749

(State or Other Jurisdiction
of Incorporation)

 

(Commission File Number)

 

(I.R.S. Employer Identification Number)

 

1110 Spring Street

 

 

Silver Spring, MD

 

20910

(Address of Principal Executive Offices)

 

(Zip Code)

Registrant’s telephone number, including area code:

(301) 608-9292

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:

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

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

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

o                                    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 December 12, 2006, United Therapeutics Corporation (the “Company”) issued a press release concerning commencement of the first-ever human trial of a novel, cell-mediated gene therapy for the treatment of pulmonary arterial hypertension that is being conducted by its affiliate, Northern Therapeutics.  This press release also disclosed that approximately 150 patients have been enrolled in the Company’s TRIUMPH-1 trial and that the Company has decided not to perform an interim assessment of the TRIUMPH-1 study results.

A copy of this press release is attached hereto as Exhibit 99.1.  The Company does not intend for Exhibit 99.1 to be incorporated by reference into filings under the Securities Act of 1933 or the Securities Exchange Act of 1934.

Item 9.01.  Exhibits

(d)  Exhibits

Exhibit No.

 

Description of Exhibit

99.1

 

Press release dated December 12, 2006

 




SIGNATURE

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

 

UNITED THERAPEUTICS CORPORATION

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Dated: December 12, 2006

 

By:

 

/s/ Paul A. Mahon

 

 

 

 

Name: Paul A. Mahon

 

 

 

 

Title: General Counsel

 




Exhibit Index

Exhibit No.

 

Description of Exhibit

99.1

 

Press release dated December 12, 2006