UNITED STATES

                       SECURITIES AND EXCHANGE COMMISSION

                                Washington, D.C.

                                   FORM 10-SB

      GENERAL FORM FOR REGISTRATION OF SECURITIES OF SMALL BUSINESS ISSUERS

        Under Section 12(b) or (g) of The Securities Exchange Act of 1934

                              Delcath Systems, Inc.
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                 (Name of Small Business Issuer in its charter)

                                    Delaware
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         (State or other jurisdiction of incorporation or organization)

                                   06-1245881
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                      (I.R.S. Employer Identification No.)

                                     06905
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                                   (ZipCode)

Issuer's telephone number: (203) 323-8668

Securities to be registered pursuant to Section 12(b) of the Act.

                               Title of each class

                                      None
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                    Name of each exchange on which registered


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Securities to be registered pursuant to Section 12(g) of the Act.

            2005 Redeemable Common Stock Purchase Warrants - Series A
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                                (Title of Class)






                                     PART I

Item 1. Description of Business

     The information required by Item 101 of Regulation S-B is incorporated
herein by reference to Part I, Item 1 of the Annual Report on Form 10-KSB of
Delcath Systems, Inc. (the "Company") for the year ended December 31, 2004 (File
No. 001-16133) (the "2004 10-KSB").

Item 2. Management's Discussion and Analysis or Plan of Operations

     The information required by Item 103 of Regulation S-B is incorporated
herein by reference to Part II, Item 6 of the 2004 10-KSB.

Item 3. Description of Property

     The information required by Item 102 of Regulation S-B is incorporated
herein by reference to Part I, Item 2 of the 2004 10-KSB.

Item 4. Security Ownership of Certain Beneficial Owners and Management

     The information required by Item 403 of Regulation S-B is incorporated
herein by reference to the information appearing under the caption "Security
Ownership by Management and Principal Stockholders" in the Company's definitive
Proxy Statement dated April 29, 2005 distributed in connection with its 2005
Annual Meeting of Stockholders (Commission File No. 001-16133) (the "2005 Proxy
Statement").

Item 5. Directors and Executive Officers, Promoters and Control Persons

     The information required by Item 401 of Regulation S-B is incorporated
herein by reference to the information appearing under the caption "Election of
Directors - Background of Nominees for the Board of Directors" in the 2005 Proxy
Statement.

Item. 6. Executive Compensation

     The information required by Item 402 of Regulation S-B is incorporated
herein by reference to the information appearing under the caption "Compensation
and Other Information Concerning Directors and Officers" in the 2005 Proxy
Statement.

Item 7. Certain Relationships and Related Transactions

     The information required by Item 404 of Regulation S-B is incorporated
herein by reference to the information appearing in note (1) to the table under
the caption


                                       2






"Compensation and Other Information Concerning Directors and Officers - Summary
Compensation Table" in the 2005 Proxy Statement.

Item 8. Description of Securities

     (a) Not applicable.

     (b) Not applicable

     (c) The information required by Item 202(c) with respect to the Company's
2005 Redeemable Common Stock Purchase Warrants - Series A is incorporated herein
by reference to the information contained under the caption "Description of the
Company's Capital Stock and Other Securities - Description of the Exchange
Warrants" in the Company's Offer to Exchange dated July 13, 2005 filed as
Exhibit (a)(1)(i) to the Company's Schedule TO-I (Commission File No. 5-60851)).

                                     PART II

Item 1. Market Price of and Dividends on the Registrant's Common Equity and
Related Stockholder Matters

     The information required by Item 201 of Regulation S-B is incorporated
herein by reference to Part II, Item 5 of the 2004 10-KSB.

Item 2. Legal Proceedings

     The information required by Item 103 of Regulation S-B is incorporated
herein by reference to Part I, Item 3 of the 2004 10-KSB.

Item 3. Changes in and Disagreements with Accountants

     The information required by Item 102 of Regulation S-B is incorporated
herein by reference to the Company's Current Report on Form 8-K dated April 25,
2005, as amended by an amendment thereto filed on May 2, 2005 (Commission File
No. 001-16133).

Item 4. Recent Sales of Unregistered Securities

     The information required by Item 701 of Regulation S-B is incorporated
herein by reference to the following:

     1.   Item 3.02 of the Company's Current Report on Form 8-K dated September
          9, 2005 (Commission File No. 001-16133);

     2.   Part II, Item 2 of the Company's Quarterly Report on Form 10-QSB for
          the quarter ended June 30, 2005 (Commission File No. 001-16133);


                                       3






     3.   Items 1.01 and 3.02 of the Company's Current Report on Form 8-K dated
          November 24, 2004 (Commission File No. 001-16133);

     4.   Part II, Item 2 of the Company's Quarterly Report on Form 10-QSB for
          the quarter ended September 30, 2004 (Commission File No. 001-16133);

     5.   Part II, Item 2 of the Company's Quarterly Report on Form 10-QSB for
          the quarter ended June 30, 2004 (Commission File No. 001-16133); and

     6.   Part II, Item 2 of the Company's Quarterly Report on Form 10-QSB for
          the quarter ended March 31, 2004 (Commission File No. 001-16133).

Item 5. Indemnification of Directors and Officers

     The information required by Item 702 of Regulation S-B is incorporated
herein by reference to Item 15 of the Company's Registration Statement on Form
S-3 (No. 333-127629) filed on August 17, 2005.

                                    PART F/S

     The information required by Item 301 of Regulation S-B is incorporated
herein by reference to Part II, Item 7 of the Company's Annual Report on Form
10-KSB for the year ended December 31, 2005 (Commission File No. 001-16133) and
to Part I, Item 1 of the Company's Quarterly Report on Form 10-QSB for the
quarter ended June 30, 2005 (Commission File No. 001-16133).

                                    PART III

Item 1. Index to Exhibits

      Exhibit No.                       Description

        3.1    Amended and Restated Certificate of Incorporation of Delcath
               Systems, Inc., as amended to June 30, 2005. (incorporated by
               reference to Exhibit 3(i) to Registrant's Quarterly Report on
               Form 10-QSB for the quarter ended June 30, 2005 (Commission File
               No. 001-16133)).

        3.2    Amended and Restated By-Laws of Delcath Systems, Inc.
               (incorporated by reference to Exhibit 3.2 to Amendment No. 1 to
               Registrant's Registration Statement on Form SB-2 (Registration
               No. 333-39470)).          


                                       4




      Exhibit No.                       Description


        4.1    Rights Agreement, dated October 30, 2001, by and between Delcath
               Systems, Inc. and American Stock Transfer & Trust Company, as
               Rights Agent (incorporated by reference to Exhibit 4.7 to
               Registrant's Form 8-A dated November 12, 2001 (Commission File
               No. 001-16133)).

        4.2    Form of Warrant Agreement by and between Delcath Systems, Inc.
               and Whale Securities Co., L.P. (incorporated by reference to
               Exhibit 4.2 to Amendment No. 5 to Registrant's Registration
               Statement on Form SB-2 (Registration No. 333-39470)).

        4.3    Form of Warrant Agent Agreement by and among Delcath Systems,
               Inc., Whale Securities Co., L.P., and American Stock Transfer &
               Trust Company, as warrant agent (incorporated by reference to
               Exhibit 4.3 to Amendment No. 5 to Registrant's Registration
               Statement on Form SB-2 (Registration No. 333-39470)).

        4.4    Form of Warrant to Purchase Shares of Common Stock issued
               pursuant to the Common Stock Purchase Agreement dated as of March
               19, 2004 (incorporated by reference to Exhibit 4 to Registrant's
               Current Report on Form 8-K dated March 19, 2004 (Commission File
               No,. 001-16133)).

        4.5    Form of Series A Warrant to Purchase Shares of Common Stock dated
               as of November 24, 2004 (incorporated by reference to Exhibit 4.1
               to Registrant's Current Report on Form 8-K dated November 24,
               2004 (Commission File No. 001-16133)).

        4.6    Form of Series B Warrant to Purchase Shares of Common Stock dated
               as of November 24, 2004 (incorporated by reference to Exhibit 4.2
               to Registrant's Current Report on Form 8-K dated November 24,
               2004 (Commission File No. 001-16133)).

        4.7   Form of Series C Warrant to Purchase Shares of Common Stock dated
               as of November 24, 2004 (incorporated by reference to Exhibit 4.3
               to Registrant's Current Report on Form 8-K dated November 24,
               2004 (Commission File No. 001-16133)).

        4.8   Form of Series D Warrant to Purchase Shares of Common Stock dated
               as of December 7, 2004 (incorporated by reference to Exhibit 4.10
               to Registrant's Registration Statement on Form S-3 (Registration
               No. 333-121681)).


                                       5






      Exhibit No.                       Description

        4.9    Warrant Agreement dated as of July 22, 2005 between the
               Registrant and American Stock Transfer & Trust Company, as
               warrant agent, together with the form of 2005 Redeemable Common
               Stock Purchase Warrants - Series A (incorporated by reference to
               Exhibit 4 to Registrant's Quarterly Report on Form 10-QSB for the
               quarter ended June 30, 2005 (Commission File No. 001-16133)).

       10.1    1992 Incentive Stock Option Plan (incorporated by reference to
               Exhibit 10.1 to Registrant's Registration Statement on Form SB-2
               (Registration Number 333-39470)).

       10.2    2000 Stock Option Plan (incorporated by reference to Exhibit 10.3
               to Registrant's Registration Statement on Form SB-2 (Registration
               No. 333-39470)).

       10.3    2001 Stock Option Plan (incorporated by reference to Exhibit
               10.12 to Amendment No. 1 to Registrant's Annual Report on Form
               10-KSB for the year ended December 31, 2001 (Commission File No.
               001-16133)).

       10.4    2004 Stock Incentive Plan (incorporated by reference to Appendix
               B to Registrant's definitive Proxy Statement dated April 29, 2004
               (Commission File No. 001-16133)).

       10.5    Employment Agreement, as amended by Amendment No. 1 thereto,
               between the Registrant and M. S. Koly (incorporated by reference
               to Exhibit 10.1 to Registrant's Quarterly Report on Form 10-QSB
               for the quarter ended June 30, 2005 (Commission File No.
               001-16133)).

       10.6    Employment Agreement, effective as of October 1, 2003, by and
               among Delcath Systems, Inc. and Samuel Herschkowitz (incorporated
               by reference to Exhibit 10.6 to Registrant's Annual Report on
               Form 10-KSB for the year ended December 31, 2003 (Commission File
               No. 001-16133)).

       10.7    Common Stock Purchase Agreement dated as of March 19, 2004 by and
               among Delcath Systems, Inc. and the Purchasers Listed on Exhibit
               A thereto (incorporated by reference to Exhibit 10.1 to
               Registrant's Current Report on Form 8-K dated March 19, 2004
               (Commission File No. 001-16133)).


                                       6






      Exhibit No.                       Description

       10.8    Registration Rights Agreement dated as of March 19, 2004 by and
               among Delcath Systems, Inc. and the Purchasers Listed on Schedule
               I thereto (incorporated by reference to Exhibit 10.2 to
               Registrant's Current Report on Form 8-K dated March 19, 2004
               (Commission File No. 001-16133)).

       10.9    Common Stock Purchase Agreement dated as of November 24, 2004 by
               and among Delcath Systems, Inc. and the Purchasers Listed on
               Exhibit A thereto (incorporated by reference to Exhibit 10.1 to
               Registrant's Current Report on Form 8-K dated November 24, 2004
               (Commission File No. 001-16133)).

      10.10    Registration Rights Agreement dated as of November 24, 2004 by
               and among Delcath Systems, Inc. and the Purchasers Listed on
               Schedule I thereto (incorporated by reference to Exhibit 10.2 to
               Registrant's Current Report on Form 8-K dated November 24, 2004
               (Commission File No. 001-16133)).

      10.11    Common Stock Purchase Agreement dated as of December 7, 2004 by
               and among Delcath Systems, Inc. and the Purchasers Listed on
               Exhibit A thereto (incorporated by reference to Exhibit 10.5 to
               Registrant's Registration Statement on Form S-3 (Registration No.
               333-121681)).

      10.12    Registration Rights Agreement dated as of December 7, 2004 by
               and among Delcath Systems, Inc. and the Purchasers Listed on
               Schedule I thereto (incorporated by reference to Exhibit 10.6 to
               Registrant's Registration Statement on Form S-3 (Registration No.
               333-121681)).

      10.13    Form of Incentive Stock Option Agreement under the Registrant's
               2004 Stock Incentive Plan (incorporated by reference to Exhibit
               10.2 to Registrant's Quarterly Report on Form 10-QSB for the
               quarter ended June 30, 2005 (Commission File No. 001-16133)).

      10.14    Form of Nonqualified Stock Option Agreement under the
               Registrant's 2004 Stock Incentive Plan (incorporated by reference
               to Exhibit 10.3 to Registrant's Quarterly Report on Form 10-QSB
               for the quarter ended June 30, 2005 (Commission File No.
               001-16133)).


                                       7






      Exhibit No.                       Description

     10.15     Form of Stock Grant Agreement under the Registrant's 2004 Stock
               Incentive Plan (incorporated by reference to Exhibit 10.4 to
               Registrant's Quarterly Report on Form 10-QSB for the quarter
               ended June 30, 2005 (Commission File No. 001-16133)).

        14     Code of Business Conduct (incorporated by reference to Exhibit 14
               to Registrant's Annual Report on Form 10-KSB for the year ended
               December 31, 2003 (Commission File No. 001-16133)).

        16     Letter of Eisner LLP (incorporated by reference to Exhibit 16 to
               Amendment No. 1 to Registrant's Current Report on Form 8-K dated
               April 25, 2005 (Commission File No. 001-16133)).


Item 2. Description of Exhibits

     Not applicable.


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                                   SIGNATURES

     Pursuant to the requirements of Section 12 of the Securities Exchange Act
of 1934, the registrant has duly caused this registration statement to be signed
on its behalf by the undersigned, thereunto duly authorized.

                                            DELCATH SYSTEMS, INC.



                                            By:      /s/ M. S. KOLY
                                                ------------------------------
                                                 M. S. Koly
                                                 President and Chief Executive
                                                 Officer

October 4, 2005


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                                  EXHIBIT INDEX


      Exhibit No.                       Description

        3.1    Amended and Restated Certificate of Incorporation of Delcath
               Systems, Inc., as amended to June 30, 2005. (incorporated by
               reference to Exhibit 3(i) to Registrant's Quarterly Report on
               Form 10-QSB for the quarter ended June 30, 2005 (Commission File
               No. 001-16133)).

        3.2    Amended and Restated By-Laws of Delcath Systems, Inc.
               (incorporated by reference to Exhibit 3.2 to Amendment No. 1 to
               Registrant's Registration Statement on Form SB-2 (Registration
               No. 333-39470)).

        4.1    Rights Agreement, dated October 30, 2001, by and between Delcath
               Systems, Inc. and American Stock Transfer & Trust Company, as
               Rights Agent (incorporated by reference to Exhibit 4.7 to
               Registrant's Form 8-A dated November 12, 2001 (Commission File
               No. 001-16133)).

        4.2    Form of Warrant Agreement by and between Delcath Systems, Inc.
               and Whale Securities Co., L.P. (incorporated by reference to
               Exhibit 4.2 to Amendment No. 5 to Registrant's Registration
               Statement on Form SB-2 (Registration No. 333-39470)).

        4.3    Form of Warrant Agent Agreement by and among Delcath Systems,
               Inc., Whale Securities Co., L.P., and American Stock Transfer &
               Trust Company, as warrant agent (incorporated by reference to
               Exhibit 4.3 to Amendment No. 5 to Registrant's Registration
               Statement on Form SB-2 (Registration No. 333-39470)).

        4.4    Form of Warrant to Purchase Shares of Common Stock issued
               pursuant to the Common Stock Purchase Agreement dated as of March
               19, 2004 (incorporated by reference to Exhibit 4 to Registrant's
               Current Report on Form 8-K dated March 19, 2004 (Commission File
               No,. 001-16133)).

        4.5    Form of Series A Warrant to Purchase Shares of Common Stock dated
               as of November 24, 2004 (incorporated by reference to Exhibit 4.1
               to Registrant's Current Report on Form 8-K dated November 24,
               2004 (Commission File No. 001-16133)).







      Exhibit No.                       Description

        4.6    Form of Series B Warrant to Purchase Shares of Common Stock dated
               as of November 24, 2004 (incorporated by reference to Exhibit 4.2
               to Registrant's Current Report on Form 8-K dated November 24,
               2004 (Commission File No. 001-16133)).

        4.7    Form of Series C Warrant to Purchase Shares of Common Stock dated
               as of November 24, 2004 (incorporated by reference to Exhibit 4.3
               to Registrant's Current Report on Form 8-K dated November 24,
               2004 (Commission File No. 001-16133)).

        4.8    Form of Series D Warrant to Purchase Shares of Common Stock dated
               as of December 7, 2004 (incorporated by reference to Exhibit 4.10
               to Registrant's Registration Statement on Form S-3 (Registration
               No. 333-121681)).

        4.9    Warrant Agreement dated as of July 22, 2005 between the
               Registrant and American Stock Transfer & Trust Company, as
               warrant agent, together with the form of 2005 Redeemable Common
               Stock Purchase Warrants - Series A (incorporated by reference to
               Exhibit 4 to Registrant's Quarterly Report on Form 10-QSB for the
               quarter ended June 30, 2005 (Commission File No. 001-16133)).

       10.1    1992 Incentive Stock Option Plan (incorporated by reference to
               Exhibit 10.1 to Registrant's Registration Statement on Form SB-2
               (Registration No. 333-39470)).

       10.2    2000 Stock Option Plan (incorporated by reference to Exhibit 10.3
               to Registrant's Registration Statement on Form SB-2 (Registration
               No. 333-39470)).

       10.3    2001 Stock Option Plan (incorporated by reference to Exhibit
               10.12 to Amendment No. 1 to Registrant's Annual Report on Form
               10-KSB for the year ended December 31, 2001 (Commission File No.
               001-16133)).

       10.4    2004 Stock Incentive Plan (incorporated by reference to Appendix
               B to Registrant's definitive Proxy Statement dated April 29, 2004
               (Commission File No. 001-16133)).

       10.5    Employment Agreement, as amended by Amendment No. 1 thereto,
               between the Registrant and M. S. Koly (incorporated by reference
               to Exhibit 10.1 to Registrant's Quarterly Report on Form 10-QSB
               for the quarter ended June 30, 2005 (Commission File No.
               001-16133)).








      Exhibit No.                       Description

       10.6    Employment Agreement, effective as of October 1, 2003, by and
               among Delcath Systems, Inc. and Samuel Herschkowitz (incorporated
               by reference to Exhibit 10.6 to Registrant's Annual Report on
               Form 10-KSB for the year ended December 31, 2003 (Commission File
               No. 001-16133)).

       10.7    Common Stock Purchase Agreement dated as of March 19, 2004 by and
               among Delcath Systems, Inc. and the Purchasers Listed on Exhibit
               A thereto (incorporated by reference to Exhibit 10.1 to
               Registrant's Current Report on Form 8-K dated March 19, 2004
               (Commission File No. 001-16133)).

       10.8    Registration Rights Agreement dated as of March 19, 2004 by and
               among Delcath Systems, Inc. and the Purchasers Listed on Schedule
               I thereto (incorporated by reference to Exhibit 10.2 to
               Registrant's Current Report on Form 8-K dated March 19, 2004
               (Commission File No. 001-16133)).

       10.9    Common Stock Purchase Agreement dated as of November 24, 2004 by
               and among Delcath Systems, Inc. and the Purchasers Listed on
               Exhibit A thereto (incorporated by reference to Exhibit 10.1 to
               Registrant's Current Report on Form 8-K dated November 24, 2004
               (Commission File No. 001-16133)).

      10.10    Registration Rights Agreement dated as of November 24, 2004 by
               and among Delcath Systems, Inc. and the Purchasers Listed on
               Schedule I thereto (incorporated by reference to Exhibit 10.2 to
               Registrant's Current Report on Form 8-K dated November 24, 2004
               (Commission File No. 001-16133)).

      10.11    Common Stock Purchase Agreement dated as of December 7, 2004 by
               and among Delcath Systems, Inc. and the Purchasers Listed on
               Exhibit A thereto (incorporated by reference to Exhibit 10.5 to
               Registrant's Registration Statement on Form S-3 (Registration No.
               333-121681)).

      10.12    Registration Rights Agreement dated as of December 7, 2004 by
               and among Delcath Systems, Inc. and the Purchasers Listed on
               Schedule I thereto (incorporated by reference to Exhibit 10.6 to
               Registrant's Registration Statement on Form S-3 (Registration No.
               333-121681)).







      Exhibit No.                       Description

      10.13    Form of Incentive Stock Option Agreement under the Registrant's
               2004 Stock Incentive Plan (incorporated by reference to Exhibit
               10.2 to Registrant's Quarterly Report on Form 10-QSB for the
               quarter ended June 30, 2005 (Commission File No. 001-16133)).

      10.14    Form of Nonqualified Stock Option Agreement under the
               Registrant's 2004 Stock Incentive Plan (incorporated by reference
               to Exhibit 10.3 to Registrant's Quarterly Report on Form 10-QSB
               for the quarter ended June 30, 2005 (Commission File No.
               001-16133)).

      10.15    Form of Stock Grant Agreement under the Registrant's 2004 Stock
               Incentive Plan (incorporated by reference to Exhibit 10.4 to
               Registrant's Quarterly Report on Form 10-QSB for the quarter
               ended June 30, 2005 (Commission File No. 001-16133)).

         14    Code of Business Conduct (incorporated by reference to Exhibit 14
               to Registrant's Annual Report on Form 10-KSB for the year ended
               December 31, 2003 (Commission File No. 001-16133)).

         16    Letter of Eisner LLP (incorporated by reference to Exhibit 16 to
               Amendment No. 1 to Registrant's Current Report on Form 8-K dated
               April 25, 2005 (Commission File No. 001-16133)).