SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

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                                    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): August 14, 2003
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                               CYTOGEN CORPORATION
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               (Exact Name of Registrant as Specified in Charter)


          Delaware                      000-14879                 22-2322400
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(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
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       (Address of Principal Executive Offices)                      (Zip Code)

       Registrant's telephone number, including area code: (609) 750-8200
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ITEM 9.  REGULATION FD DISCLOSURE  (INFORMATION  FURNISHED  PURSUANT TO ITEM 12,
"DISCLOSURE OF RESULTS OF OPERATIONS AND FINANCIAL CONDITION").

         On August 14, 2003, Cytogen  Corporation (the "Company")  announced its
financial  results for the  quarter  ended June 30,  2003.  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.

         In accordance with the procedural  guidance in SEC Release Nos. 33-8216
and 34-47583,  the information in this Form 8-K and the Exhibit  attached hereto
is being furnished  under "Item 9.  Regulation FD Disclosure"  rather than under
"Item 12.  Disclosure of Results of Operations  and  Financial  Condition."  The
information  shall not be deemed  "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,  nor shall it be deemed incorporated
by reference in any filing under the Securities Act of 1933, as amended,  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 current report on Form 8-K 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:   August 14, 2003






                                  EXHIBIT INDEX


                      Exhibit No.       Description
                      -----------       -----------

                          99.1          Press release dated August14, 2003.