UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549
                                  SCHEDULE l3D
                    Under the Securities Exchange Act of 1934
                               (Amendment No. 4)*


                              DELCATH SYSTEMS, INC.
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                                (Name of Issuer)

                     Common Stock, $0.01 par value per share
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                         (Title of Class of Securities)

                                    24661P104
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                                 (CUSIP Number)
                                                     with a copy to:
     Mr. Robert Ladd                                 Robert G. Minion, Esq.
     Laddcap Value Advisors LLC                      Lowenstein Sandler PC
     650 Fifth Avenue, Suite 600                     65 Livingston Avenue
     New York, New York 10019                        Roseland, New Jersey  07068
     (212) 259-2070                                  (973) 597-2424
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                  (Name, Address and Telephone Number of Person
                Authorized to Receive Notices and Communications)

                                December 30, 2005
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             (Date of Event which Requires Filing of this Statement)


If the filing person has previously  filed a statement on Schedule l3G to report
the  acquisition  that is the  subject of this  Schedule 13D, and is filing this
schedule because of Sections 240.13d-1(e),  240.13d-1(f) or 240.13d-1(g),  check
the following box. [ ]

Note:  Schedules  filed in paper format shall include a signed original and five
copies of the schedule, including all exhibits.  See Section 240.13d-7 for other
parties to whom copies are to be sent.

*The  remainder of this cover page shall be filled out for a reporting  person's
initial filing on this form with respect to the subject class of securities, and
for  any  subsequent   amendment   containing   information  which  would  alter
disclosures provided in a prior cover page.

The information required on the remainder of this cover page shall not be deemed
to be "filed" for the purpose of Section 18 of the  Securities  Exchange  Act of
1934 ("Act") or otherwise  subject to the liabilities of that section of the Act
but  shall be  subject  to all other  provisions  of the Act  (however,  see the
Notes).




Cusip No.      24661P104
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  1)   Names of Reporting Persons.  I.R.S. Identification Nos. of  above persons
       (entities only):

                                Robert Ladd
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  2)   Check the Appropriate Box if a Member of a Group (See Instructions):
             (a)     
             (b)     
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  3)   SEC Use Only

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  4)   Source of Funds (See Instructions):  WC
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  5)   Check if  Disclosure of  Legal Proceedings Is  Required Pursuant to Items
       2(d) or 2(e):         Not Applicable
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  6)   Citizenship or Place of Organization:    United States
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        Number of                     7) Sole Voting Power:           1,727,701*
                                         ---------------------------------------
        Shares Beneficially           8) Shared Voting Power:                 0*
                                         ---------------------------------------
        Owned by
        Each Reporting                9) Sole Dispositive Power:      1,727,701*
                                         ---------------------------------------
        Person With                  10) Shared Dispositive Power:            0*
                                         ---------------------------------------
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  11)  Aggregate Amount Beneficially Owned by Each Reporting Person:  1,727,701*
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  12)  Check if the Aggregate Amount in Row (11) Excludes Certain Shares  (See
       Instructions):      Not Applicable
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  13)  Percent of Class Represented by Amount in Row (11):      9.3%*
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  14)  Type of Reporting Person (See Instructions):      IN
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*  Laddcap Value Partners LP, a Delaware limited partnership ("Laddcap"), is the
record holder of 1,727,701 shares of the common stock, par value $0.01 per share
(the "Shares"), of Delcath Systems, Inc. (the "Company").  Robert Ladd possesses
sole power to vote and direct the  disposition  of all securities of the Company
held by Laddcap. Thus, as of December 30, 2005, for the purposes of Reg. Section
240.13d-3,  Mr. Ladd is deemed to beneficially own 1,727,701  Shares, or 9.3% of
the Shares deemed issued and outstanding as of that date.






Item 4.   Purpose of Transaction.
          ----------------------

          Item 4 is hereby  amended  by  adding  the  following  after the fifth
paragraph thereof:

          Additionally,  Mr. Ladd intends on submitting a shareholders  proposal
pursuant to Rule 14a-8 of the  Securities  Exchange Act of 1934,  as amended for
inclusion  in  the  Company's   proxy   statement  for  its  annual  meeting  of
stockholders that is scheduled to occur on or about June 13, 2006.


Item 5.   Interest in Securities of the Issuer.
          ------------------------------------

          Item 5 is hereby amended and restated in its entirety as follows:

          Based  upon  information  set  forth  in  the  Company's  Registration
Statement on Form S-3, as filed with the Securities  and Exchange  Commission on
January 5, 2006,  there were  18,603,377  Shares  issued and  outstanding  as of
December 21, 2005.  As of December 30, 2005,  Laddcap is the holder of 1,727,701
Shares.  Robert Ladd possesses sole power to vote and direct the  disposition of
all  securities  of the Company held by Laddcap.  Thus, as of December 30, 2005,
for the purposes of Reg. Section  240.13d-3,  Mr. Ladd is deemed to beneficially
own 1,727,701  Shares, or 9.3% of the Shares deemed issued and outstanding as of
that date.

          The following table details the  transactions in Shares by Mr. Ladd or
any other person or entity  controlled  by him or any person or entity for which
he possesses voting or investment  control over the securities  thereof (each of
which were purchases  effected in an ordinary  brokerage  transaction) since the
date of the event that required the filing by Mr. Ladd of Amendment No. 3 to the
Schedule 13D with respect to the Company:


                                     Quantity
       Date                          of Shares                       Price
       ----                          ---------                       -----

   December 14, 2005                     500                         $3.12
   December 14, 2005                     500                         $3.13
   December 21, 2005                   3,000                         $3.26
   December 22, 2005                   5,920                         $3.19
   December 22, 2005                  10,200                         $3.21
   December 22, 2005                     300                         $3.25
   December 23, 2005                     200                         $3.20
   December 23, 2005                     500                         $3.23
   December 23, 2005                     800                         $3.26
   December 23, 2005                   2,800                         $3.27
   December 23, 2005                   8,200                         $3.28
   December 23, 2005                   1,400                         $3.33
   December 23, 2005                   2,215                         $3.35
   December 23, 2005                   3,000                         $3.36





   December 27, 2005                     100                         $3.18
   December 27, 2005                     200                         $3.19
   December 27, 2005                   3,000                         $3.20
   December 28, 2005                   9,404                         $3.12
   December 28, 2005                   5,600                         $3.13
   December 28, 2005                   5,300                         $3.14
   December 28, 2005                   3,300                         $3.15
   December 28, 2005                   8,000                         $3.16
   December 28, 2005                   9,596                         $3.17
   December 28, 2005                   8,900                         $3.18
   December 28, 2005                     400                         $3.19
   December 28, 2005                   1,200                         $3.20
   December 28, 2005                     900                         $3.21
   December 28, 2005                   5,200                         $3.22
   December 28, 2005                     800                         $3.23
   December 28, 2005                   3,200                         $3.24
   December 28, 2005                   4,574                         $3.25
   December 28, 2005                   2,300                         $3.26
   December 28, 2005                   5,700                         $3.27
   December 28, 2005                   2,000                         $3.28
   December 28, 2005                   4,000                         $3.29
   December 28, 2005                   3,000                         $3.31
   December 30, 2005                     100                         $3.30
   December 30, 2005                     100                         $3.31
   December 30, 2005                     100                         $3.33
   December 30, 2005                   4,675                         $3.34
   December 30, 2005                  14,425                         $3.35
   December 30, 2005                     600                         $3.37
   December 30, 2005                  19,300                         $3.39
   December 30, 2005                  25,089                         $3.40






          In addition,  the following table details the transactions in warrants
to acquire additional Shares (the "Warrants") by Mr. Ladd or any other person or
entity  controlled by him or any person or entity for which he possesses  voting
or investment  control over the securities thereof (each of which were purchases
effected in an ordinary brokerage  transaction) since the date of the event that
required  the filing by Mr. Ladd of  Amendment  No. 3 to the  Schedule  13D with
respect to the Company:


                                     Quantity
       Date                          of Shares                       Price
       ----                          ---------                       -----

   December 14, 2005                   4,167                         $0.30
   December 14, 2005                   5,000                         $0.32
   December 14, 2005                  11,000                         $0.35
   December 14, 2005                  13,000                         $0.37
   December 14, 2005                   3,000                         $0.38
   December 20, 2005                   4,500                         $0.40
   December 23, 2005                   2,000                         $0.50
   December 23, 2005                   2,000                         $0.54
   December 23, 2005                   1,500                         $0.56


          Except as set forth  above,  and the  exercise on December 23, 2005 of
79,467  Warrants,  there  were no other  transactions  in Shares  or  securities
convertible into, exercisable for or exchangeable for Shares, by Mr. Ladd or any
other  person or entity  controlled  by him or any person or entity for which he
possesses  voting or investment  control over the  securities  thereof since the
date of the event that required the filing by Mr. Ladd of Amendment No. 3 to the
Schedule 13D with respect to the Company.


                                    Signature
                                    ---------

           After  reasonable inquiry and to the best of my knowledge and belief,
I certify that the information set forth in this statement is true, complete and
correct.


                                            January 6, 2006


                                            /s/ Robert Ladd 
                                            ------------------------------------
                                            Robert Ladd, in his  capacity as the
                                            managing  member  of  Laddcap  Value
                                            Advisors LLC, the general partner of
                                            Laddcap Value Partners LP


      Attention: Intentional misstatements or omissions of fact constitute
               Federal criminal violations (See 18 U.S.C. 1001).