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): July 10, 2003
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                               CYTOGEN CORPORATION
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               (Exact Name of Registrant as Specified in Charter)

          Delaware                       000-14879              222322400
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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 5.  OTHER EVENTS.

     On  July  10,  2003,  Cytogen  Corporation,  a  Delaware  corporation  (the
"Company"),  entered  into a  Securities  Purchase  Agreement  (the  "Securities
Purchase Agreement") with certain institutional  investors pursuant to which the
Company issued and sold an aggregate of 1,172,332  shares of its common stock at
$8.53 per share.  In  connection  with such  financing,  the Company also issued
warrants  (the  "Warrants")  to such  investors  to  purchase  an  aggregate  of
1,172,332  shares of the Company's common stock with an exercise price of $12.80
per share.

     The proceeds  received from this  financing are expected to be used for the
reacquisition of North American and Latin American marketing rights, and related
expenses,  for QUADRAMET(R)  (Samarium Sm 153 Lexidronam),  a skeletal targeting
therapeutic  radiopharmaceutical  for the  relief of bone pain in  prostate  and
other types of cancer.

     The  securities  sold in this private  placement  have not been  registered
under the Securities Act of 1933, as amended (the "Act"), and may not be offered
or sold  in the  United  States  in the  absence  of an  effective  registration
statement  or exemption  from the  registration  requirements  under the Act. In
accordance   with  the  terms  of  the   Registration   Rights   Agreement  (the
"Registration  Rights  Agreement"),  dated July 10,  2003,  entered  into by the
Company and the investors in  connection  with this  financing,  the Company has
agreed to file a resale  registration  statement on Form S-3 within 30 days from
July 10, 2003 for  purposes of  registering,  pursuant to the Act, the shares of
common stock and shares of common stock underlying the Warrants  acquired by the
investors.

     A complete copy of each of the Securities Purchase  Agreement,  the form of
Warrant,  the Registration Rights Agreement and the related press release of the
Company are filed herewith as Exhibits 10.1, 10.2, 10.3 and 99.1,  respectively,
and are incorporated herein by reference. The foregoing descriptions of: (i) the
Securities Purchase Agreement:  (ii) the Warrants; (iii) the Registration Rights
Agreement;  and (iv) the  press  release  and any  other  documents  or  filings
referenced herein are qualified in their entirety by reference to such Exhibits,
documents or filings.

ITEM 7. FINANCIAL STATEMENTS, PRO FORMA FINANCIAL INFORMATION AND EXHIBITS.

     (c) Exhibits.

     Exhibit No.       Description
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         10.1          Securities  Purchase  Agreement by and among the Company
                       and the  Purchasers dated July 10, 2003.

         10.2          Form of Common  Stock  Purchase  Warrant  issued by the
                       Company in favor of each Purchaser dated July 10, 2003.

         10.3          Registration  Rights  Agreement by and among the Company
                       and the  Purchasers dated July 10, 2003.

         99.1          Press release of the Company dated July 11, 2003.




                                   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
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                                        Michael D. Becker
                                        President and Chief Executive Officer

Dated:   July 10, 2003






                                  EXHIBIT INDEX


 Exhibit No.       Description
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     10.1          Securities  Purchase  Agreement by and among the Company
                   and the  Purchasers dated July 10, 2003.

     10.2          Form of Common  Stock  Purchase  Warrant  issued by the
                   Company in favor of each Purchaser dated July 10, 2003.

     10.3          Registration  Rights  Agreement by and among the Company and
                   the  Purchasers dated July 10, 2003.

     99.1          Press release of the Company dated July 11, 2003.