content: 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): March 4, 2004
                                                            -------------
  
                                 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)
  
  
  <PAGE>
  
  
  ITEM 12.      RESULTS OF OPERATIONS AND FINANCIAL CONDITION.
  
           On March 4, 2004, Cytogen  Corporation  announced its financial results
  for the quarter  and fiscal  year ended  December  31,  2003 and  provided  2004
  financial guidance. The full text of the 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.
  
  
  
  <PAGE>
  
  
                                     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:   March 4, 2004
  
  
  
  <PAGE>
  
  
                                    EXHIBIT INDEX
  
  
                 Exhibit No.      Description
                 -----------      -----------
  
                    99.1          Press release dated March 4, 2004
metadata_documents: [{"type": "8-K", "sequence": "1", "filename": "form8k030404.txt", "description": "FORM 8-K DATED MARCH 4, 2004", "secsgml_size_bytes": 3279}]
metadata_filer: {"company-data": {"conformed-name": "CYTOGEN CORP", "cik": "0000725058", "assigned-sic": "2834", "irs-number": "222322400", "state-of-incorporation": "DE", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "000-14879", "film-number": "04647546"}, "business-address": {"street1": "600 COLLEGE RD EAST CN 5308", "city": "PRINCETON", "state": "NJ", "zip": "08540", "phone": "6099878200"}, "mail-address": {"street1": "600 COLLEGE RD EAST CN 5308", "street2": "600 COLLEGE RD EAST CN 5308", "city": "PRINCETON", "state": "NJ", "zip": "08540"}}
text: 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): March 4, 2004
                                                            -------------
  
                                 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)
  ITEM 12.      RESULTS OF OPERATIONS AND FINANCIAL CONDITION.
  
           On March 4, 2004, Cytogen  Corporation  announced its financial results
  for the quarter  and fiscal  year ended  December  31,  2003 and  provided  2004
  financial guidance. The full text of the 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.
  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:   March 4, 2004
  EXHIBIT INDEX
  
                 Exhibit No.      Description
                 -----------      -----------
  
                    99.1          Press release dated March 4, 2004