UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                  SCHEDULE 13G


                   Under the Securities Exchange Act of 1934
                               (Amendment No. 1)*




                        DUSA PHARMACEUTICALS INC   (dusa)
                   -----------------------------------------
                                (Name of Issuer)


                                  Common Stock
                   -----------------------------------------
                         (Title of Class of Securities)

                                   266898105
                   -----------------------------------------
                                 (CUSIP Number)

                              December 31, 2006
                   -----------------------------------------
            (Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this
Schedule is filed:
[ X ]  Rule 13d-1(b)
[   ]  Rule 13d-1(c)
[   ]  Rule 13d-1(d)

*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 the
disclosures provided in a prior cover page.

The information required in 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.  266898105


1.  Names of Reporting Persons.
    I.R.S. Identification Nos. of above persons (entities only).

     Kennedy Capital Management, Inc.      Tax ID: 43-1225960


2.  Check the Appropriate Box if a Member of a Group (See Instructions)
     (a)
     (b)    X


3.  SEC Use Only


4.  Citizenship or Place of Organization:
    Missouri Corporation

                   5.   Sole Voting Power

                        0     0.0%

Number of          6.   Shared Voting Power
Shares
Beneficially            None
Owned By
Each Reporting     7.   Sole Dispositive Power
Person With
                        0     0.0%

                   8.   Shared Dispositive Power

                        None


9.  Aggregate Amount Beneficially Owned by Each Reporting Person:
    0 shares


10. Check if the Aggregate Amount in Row (9) Excludes Certain Shares
    (See Instructions)


11.  Percent of Class Represented by Amount in Row (9):
     0.0%

12.  Type of Reporting Person (See Instructions):
     IA


                         INSTRUCTIONS FOR SCHEDULE 13G

Instructions for Cover Page
(l)  Names and I.R.S. Identification Numbers of Reporting Persons-Furnish the
     full legal name of each person for whom the report is filed-i.e., each
     person required to sign the schedule itself-including each member of a
     group. Do not include the name of a person required to be identified in
     the report but who is not a reporting person. Reporting persons that are
     entities are also requested to furnish their I.R.S. identification
     numbers, although disclosure of such numbers is voluntary, not mandatory
     (see "SPECIAL INSTRUCTIONS FOR COMPLYING WITH SCHEDULE 13G" below).

(2)  If any of the shares beneficially owned by a reporting person are held as
     a member of a group and that membership is expressly affirmed, please
     check row 2(a).  If the reporting person disclaims membership in a group
     or describes a relationship with other persons but does not affirm the
     existence of a group, please check row 2(b) [unless it is a joint filing
     pursuant to Rule 13d1(k)(1) in which case it may not be necessary to check
     row 2(b)].

(3)  The third row is for SEC internal use; please leave blank.

(4)  Citizenship or Place of Organization-Furnish citizenship if the named
     reporting person is a natural person. Otherwise, furnish place of
     organization.

(5)-(9), (11) Aggregate Amount Beneficially Owned By Each Reporting Person,
     Etc.-Rows (5) through (9) inclusive, and (11) are to be completed in
     accordance with the provisions of Item 4 of Schedule 13G.  All percentages
     are to be rounded off to the nearest tenth (one place after decimal
     point).

(10) Check if the aggregate amount reported as beneficially owned in row (9)
     does not include shares as to which beneficial ownership is disclaimed
     pursuant to Rule 13d-4 (17 CFR 240.13d-4] under the Securities Exchange
     Act of 1934.

(12) Type of Reporting Person-Please classify each "reporting person" according
     to the following breakdown (see Item 3 of Schedule 13G) and place the
     appropriate symbol on the form:

Category                                                 Symbol

Broker Dealer                                             BD
Bank                                                      BK
Insurance Company                                         IC
Investment Company                                        IV
Investment Adviser                                        IA
Employee Benefit Plan, Pension Fund, or Endowment Fund    EP
Parent Holding Company/Control Person                     HC
Savings Association                                       SA
Church Plan                                               CP
Corporation                                               CO
Partnership                                               PN
Individual                                                IN
Other                                                     OO


Notes:
Attach as many copies of the second part of the cover page as are needed, one
reporting person per page.

Filing persons may, in order to avoid unnecessary duplication, answer items on
the schedules (Schedule 13D, 13G or 14D1) by appropriate cross references to an
item or items on the cover page(s). This approach may only be used where the
cover page item or items provide all the disclosure required by the schedule
item. Moreover, such a use of a cover page item will result in the item
becoming a part of the schedule and accordingly being considered as "filed" for
purposes of Section 18 of the Securities Exchange Act or otherwise subject to
the liabilities of that section of the Act.

Reporting persons may comply with their cover page filing requirements by
filing either completed copies of the blank forms available from the
Commission, printed or typed facsimiles, or computer printed facsimiles,
provided the documents filed have identical formats to the forms prescribed in
the Commission's regulations and meet existing Securities Exchange Act rules as
to such matters as clarity and size (Securities Exchange Act Rule 12b-12).

              SPECIAL INSTRUCTIONS FOR COMPLYING WITH SCHEDULE 13G

Under Sections 13(d), 13(g), and 23 of the Securities Exchange Act of 1934 and
the rules and regulations thereunder, the Commission is authorized to solicit
the information required to be supplied by this schedule by certain security
holders of certain issuers.

Disclosure of the information specified in this schedule is mandatory, except
for I.R.S. identification numbers, disclosure of which is voluntary. The
information will be used for the primary purpose of determining and disclosing
the holdings of certain beneficial owners of certain equity securities. This
statement will be made a matter of public record. Therefore, any information
given will be available for inspection by any member of the public.

Because of the public nature of the information, the Commission can use it for
a variety of purposes, including referral to other governmental authorities or
securities self-regulatory organizations for investigatory purposes or in
connection with litigation involving the Federal securities laws or other
civil, criminal or regulatory statutes or provisions. I.R.S. identification
numbers, if furnished, will assist the Commission in identifying security
holders and, therefore, in promptly processing statements of beneficial
ownership of securities.

Failure to disclose the information requested by this schedule, except for
I.R.S. identification numbers, may result in civil or criminal action against
the persons involved for violation of the Federal securities laws and rules
promulgated thereunder.


                              GENERAL INSTRUCTIONS
A.  Statements filed pursuant to Rule 13d-1(b) containing the information
    required by this schedule shall be filed not later than February 14
    following the calendar year covered by the statement or within the time
    specified in Rules 13d-1(b)(2) and 13d2(c). Statements filed pursuant to
    Rule 13d-1(c) shall be filed within the time specified in Rules 13d-1(c),
    13d-2(b) and 13d-2(d).  Statements filed pursuant to Rule 13d-1(d) shall be
    filed not later than February 14 following the calendar year covered by the
    statement pursuant to Rules 13d-1(d) and 13d-2(b).

B.  Information contained in a form which is required to be filed by rules
    under section 13(f) (15 U.S.C. 78m(f)) for the same calendar year as that
    covered by a statement on this schedule may be incorporated by reference in
    response to any of the items of this schedule. If such information is
    incorporated by reference in this schedule, copies of the relevant pages of
    such form shall be filed as an exhibit to this schedule.

C.  The item numbers and captions of the items shall be included but the text
    of the items is to be omitted. The answers to the items shall be so
    prepared as to indicate clearly the coverage of the items without referring
    to the text of the items. Answer every item. If an item is inapplicable or
    the answer is in the negative, so state.

Item 1.

(a)  Name of Issuer:  DUSA PHARMACEUTICALS INC

(b)  Address of Issuer's Principal Executive Offices:
     25 Upton Drive
     Wilmington, MA  01887

Item 2.

(a)  Name of Person Filing:
     Kennedy Capital Management, Inc.

(b)  Address of Principal Business Office or, if none, Residence:
     10829 Olive Blvd.
     St. Louis, MO  63141

(c)  Citizenship:
     Missouri Corporation

(d)  Title of Class of Securities:
     Common Stock

(e)  CUSIP Number:
     266898105


Item 3.  If this statement is filed pursuant to 240.13d-1(b) or 240.13d-2(b) or
(c), check whether the person filing is a:

(a)  [   ]  Broker or dealer registered under section 15 of the Act (15
            U.S.C. 78o).
(b)  [   ]  Bank as defined in section 3(a)(6) of the Act (15 U.S.C.
            78c).
(c)  [   ]  Insurance company as defined in section 3(a)(19) of the Act
            (15 U.S.C. 78c).
(d)  [   ]  Investment company registered under section 8 of the
            Investment Company Act of 1940 (15 U.S.C 80a-8).
(e)  [ X ]  An investment adviser in accordance with 240.13d-1
            (b)(1)(ii)(E);
(f)  [   ]  An employee benefit plan or endowment fund in accordance
            with 240.13d-1(b)(1)(ii)(F);
(g)  [   ]  A parent holding company or control person in accordance
            with 240.13d-1(b)(1)(ii)(G);
(h)  [   ]  A savings associations as defined in Section 3(b) of the
            Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)  [   ]  A church plan that is excluded from the definition of an
            investment company under section 3(c)(14) of the Investment
            Company Act of 1940 5 U.S.C. 80a-3);
(j)  [   ]  Group, in accordance with 240.13d-1(b)(1)(ii)(J).


Item 4.  Ownership.

Provide the following information regarding the aggregate number and
percentage of the class of securities of the issuer identified in Item 1.

     (a)  Amount beneficially owned:
          0 shares

     (b)  Percent of class:
          0.0%

     (c)  Number of shares as to which the person has:

          (i)   Sole power to vote or to direct the vote:
                0 shares

          (ii)  Shared power to vote or to direct the vote:
                None

          (iii) Sole power to dispose or to direct the
                disposition of: 0 shares

          (iv)  Shared power to dispose or to direct the
                disposition of:  None

Instruction. For computations regarding securities which represent a right to
acquire an underlying security see 240.13d3(d)(1).


Item 5.  Ownership of Five Percent or Less of a Class

If this statement is being filed to report the fact that as of the date hereof
the reporting person has ceased to be the beneficial owner of more than five
percent of the class of securities, check the following [ x  ].

Instruction: Dissolution of a group requires a response to this item.


Item 6.  Ownership of More than Five Percent on Behalf of Another Person.

If any other person is known to have the right to receive or the power to
direct the receipt of dividends from, or the proceeds from the sale of, such
securities, a statement to that effect should be included in response to this
item and, if such interest relates to more than five percent of the class, such
person should be identified.  A listing of the shareholders of an investment
company registered under the Investment Company Act of 1940 or the
beneficiaries of employee benefit plan, pension fund or endowment fund is not
required.


Item 7.  Identification and Classification of the Subsidiary Which Acquired the
Security Being Reported on By the Parent Holding Company

If a parent holding company has filed this schedule, pursuant to Rule 13d-
1(b)(ii)(G), so indicate under Item 3(g) and attach an exhibit stating the
identity and the Item 3 classification of the relevant subsidiary. If a parent
holding company has filed this schedule pursuant to Rule 13d-1(c) or Rule 13d-
1(d), attach an exhibit stating the identification of the relevant subsidiary.


Item 8.  Identification and Classification of Members of the Group

If a group has filed this schedule pursuant to 240.13d-1(b)(1)(ii)(J), so
indicate under Item 3(j) and attach an exhibit stating the identity and Item
3 classification of each member of the group. If a group has filed this
schedule pursuant to 240.13d-1(c) or 240.13d-1(d), attach an exhibit stating
the identity of each member of the group.


Item 9.  Notice of Dissolution of Group

Notice of dissolution of a group may be furnished as an exhibit stating the
date of the dissolution and that all further filings with respect to
transactions in the security reported on will be filed, if required, by
members of the group, in their individual capacity. See Item 5.


Item 10.  Certification

(a)  The following certification shall be included if the statement is filed
     pursuant to 240.13d-1(b):

By signing below I certify that, to the best of my knowledge and
belief, the securities referred to above were acquired and are held in
the ordinary course of business and were not acquired and are not
held for the purpose of or with the effect of changing or influencing
the control of the issuer of the securities and were not acquired and
are not held in connection with or as a participant in any transaction
having that purpose or effect.

(b)  The following certification shall be included if the statement is filed
     pursuant to 240.13d-1(c):

By signing below I certify that, to the best of my knowledge and
belief, the securities referred to above were not acquired and are not
held for the purpose of or with the effect of changing or influencing
the control of the issuer of the securities and were not acquired and
are not held in connection with or as a participant in any transaction
having that purpose or effect.

                                   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.

02/13/07
Date
/s/  Stephen A. Mace
Signature

Stephen A. Mace
COO
Name/Title


The original statement shall be signed by each person on whose behalf the
statement is filed or his authorized representative.  If the statement is
signed on behalf of a person by his authorized representative other than an
executive officer or general partner of the filing person, evidence of the
representative's authority to sign on behalf of such person shall be filed
with the statement, provided, however, that a power of attorney for this
purpose which is already on file with the Commission may be incorporated by
reference.  The name and any title of each person who signs the statement
shall be typed or printed beneath his signature.
NOTE: Schedules filed in paper format shall include a signed original and
five copies of the schedule, including all exhibits. See 240.13d-7 for other
parties for whom copies are to be sent.
Attention:  Intentional misstatements or omissions of fact constitute Federal
criminal violations (See 18 U.S.C. 1001)