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): May 5, 2005 ----------- CYTOGEN CORPORATION --------------------------------------------------------- (Exact Name of Registrant as Specified in Charter) Delaware 000-14879 22-2322400 ---------------------------- ------------------------ ----------------------- (State or Other Jurisdiction (Commission File Number) (I.R.S. Employer of Incorporation) Identification No.) 650 College Road East, CN 5308, Suite 3100, Princeton, NJ 08540 ----------------------------------------------------------- ----------------- (Address of Principal Executive Offices) (Zip Code) Registrant's telephone number, including area code: (609) 750-8200 -------------- -------------------------------------------------------------------------------- (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 May 5, 2005, Cytogen Corporation (the "Company") announced its financial results for the quarter ended March 31, 2005. The Company also reaffirmed its previously issued full-year 2005 financial guidance with the exception of selling, general and administrative expenses, which were revised downward. The full text of the May 5, 2005 press release issued in connection with the announcement is attached as Exhibit 99.1 to this Current Report on Form 8-K. The information in this Form 8-K and the exhibit attached hereto shall not be deemed "filed" for purposes of Section 18 of the Securities Exchange Act of 1934 (the "Exchange Act") or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933 or the Exchange Act, except as expressly set forth by specific reference in such a filing. ITEM 9.01 FINANCIAL STATEMENTS AND EXHIBITS (c) Exhibits. Exhibit No. Description ----------- ----------- 99.1 Press Release of Cytogen Corporation dated May 5, 2005 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. CYTOGEN CORPORATION By: /s/ Michael D. Becker ----------------------------- Michael D. Becker President and Chief Executive Officer Dated: May 5, 2005 EXHIBIT INDEX Exhibit No. Description ----------- ----------- 99.1 Press Release of Cytogen Corporation dated May 5, 2005