------------------------------
                               UNITED STATES                                OMB APPROVAL
                    SECURITIES AND EXCHANGE COMMISSION             ------------------------------
                          Washington, D.C. 20549                   OMB Number 3235-0145
                                                                   ------------------------------
                                                                   Expires:   February 28, 2009
                                                                   ------------------------------
                                                                   Estimated average burden
                                                                   hours per response . . . 11


                              INITIAL SCHEDULE 13G


                    Under the Securities Exchange Act of 1934


                                  Anesiva, Inc.
-------------------------------------------------------------------------------
                                (Name of Issuer)

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

                                    03460L100
-------------------------------------------------------------------------------
                                 (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).








                                PAGE 1 OF 9 PAGES





----------------------                                    ---------------------
CUSIP No. 03460L100                 13G                   Page  2  of  9  Pages
----------------------                                    ---------------------

-------------------------------------------------------------------------------
        
    1      NAME OF REPORTING PERSON
           I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (entities only).

           Manulife Financial Corporation

-------------------------------------------------------------------------------
    2      CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*      (a)  |_|
                                                                  (b)  |_|
           N/A
-------------------------------------------------------------------------------
    3      SEC USE ONLY

-------------------------------------------------------------------------------
    4      CITIZENSHIP OR PLACE OF ORGANIZATION

           Canada

-------------------------------------------------------------------------------
                       5     SOLE VOTING POWER

                             -0-
                       --------------------------------------------------------
    Number of          6     SHARED VOTING POWER
      Shares
   Beneficially              -0-
     Owned by          --------------------------------------------------------
       Each            7     SOLE DISPOSITIVE POWER
    Reporting
      Person                 -0-
       With            --------------------------------------------------------
                       8     SHARED DISPOSITIVE POWER

                             -0-
--------------------------------------------------------------------------------
    9     AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

          None, except through its indirect, wholly-owned subsidiaries, John
          Hancock Advisers, LLC and MFC Global Investment Management (U.S.), LLC
--------------------------------------------------------------------------------
   10     CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*

          N/A
--------------------------------------------------------------------------------
   11     PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

          See line 9, above.
--------------------------------------------------------------------------------
   12     TYPE OF REPORTING PERSON*

          HC
--------------------------------------------------------------------------------

                      *SEE INSTRUCTIONS BEFORE FILLING OUT!
                                PAGE 2 OF 9 PAGES






----------------------                                    ---------------------
CUSIP No. 03460L100                 13G                   Page  3  of  9  Pages
----------------------                                    ---------------------

-------------------------------------------------------------------------------
        
    1      NAME OF REPORTING PERSON
           I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (entities only).

           John Hancock Advisers, LLC

-------------------------------------------------------------------------------
    2      CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*      (a)  |_|
                                                                  (b)  |_|
           N/A
-------------------------------------------------------------------------------
    3      SEC USE ONLY

-------------------------------------------------------------------------------
    4      CITIZENSHIP OR PLACE OF ORGANIZATION

           Delaware
-------------------------------------------------------------------------------
                       5     SOLE VOTING POWER

                             -0-
                       --------------------------------------------------------
    Number of          6     SHARED VOTING POWER
      Shares
   Beneficially              879,900
     Owned by          --------------------------------------------------------
       Each            7     SOLE DISPOSITIVE POWER
    Reporting
      Person                 -0-
       With            ---------------------------------------------------------
                       8     SHARED DISPOSITIVE POWER

                             879,900
-------------------------------------------------------------------------------
    9      AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

           879,900
-------------------------------------------------------------------------------
   10      CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*

           N/A
-------------------------------------------------------------------------------
   11      PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

           4.3%
-------------------------------------------------------------------------------
   12      TYPE OF REPORTING PERSON*

           IA
-------------------------------------------------------------------------------

                      *SEE INSTRUCTIONS BEFORE FILLING OUT!
                                PAGE 3 OF 9 PAGES





----------------------                                    ---------------------
CUSIP No. 03460L100                 13G                   Page  4  of  9  Pages
----------------------                                    ---------------------

-------------------------------------------------------------------------------
        
    1      NAME OF REPORTING PERSON
           I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (entities only).

           MFC Global Investment Management (U.S.), LLC

-------------------------------------------------------------------------------
    2      CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*      (a)  |_|
                                                                  (b)  |_|
           N/A
-------------------------------------------------------------------------------
    3      SEC USE ONLY

-------------------------------------------------------------------------------
    4      CITIZENSHIP OR PLACE OF ORGANIZATION

           Delaware
-------------------------------------------------------------------------------
                       5     SOLE VOTING POWER

                             258,000
                       --------------------------------------------------------
    Number of          6     SHARED VOTING POWER
      Shares
   Beneficially              879,900
     Owned by          --------------------------------------------------------
       Each            7     SOLE DISPOSITIVE POWER
    Reporting
      Person                 258,000
       With            ---------------------------------------------------------
                       8     SHARED DISPOSITIVE POWER

                             879,900
-------------------------------------------------------------------------------
    9      AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

           1,137,900
-------------------------------------------------------------------------------
   10      CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*

           N/A
-------------------------------------------------------------------------------
   11      PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

           5.6%
-------------------------------------------------------------------------------
   12      TYPE OF REPORTING PERSON*

           IA
-------------------------------------------------------------------------------

                      *SEE INSTRUCTIONS BEFORE FILLING OUT!
                                PAGE 4 OF 9 PAGES




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

   Item 1(a)    Name of Issuer:
                Anesiva, Inc.

   Item 1(b)    Address of Issuer's Principal Executive Offices:
                650 Gateway Boulevard
                South San Francisco, California  94080

   Item 2(a)    Name of Person Filing:
                This filing is made on behalf of Manulife Financial  Corporation
                ("MFC"),  and MFC's indirect,  wholly-owned  subsidiaries,  John
                Hancock   Advisers,   LLC  ("JHA")  and  MFC  Global  Investment
                Management (U.S.), LLC ("MFC Global (U.S.)").

   Item 2(b)    Address of the Principal Offices:
                The principal  business  offices of MFC are located at 200 Bloor
                Street, East, Toronto,  Ontario,  Canada, M4W 1E5. The principal
                business  offices  of JHA are  located at 601  Congress  Street,
                Boston,  Massachusetts  02210. The principal business offices of
                MFC Global (U.S.) are located at 101 Huntington Street,  Boston,
                Massachusetts 02199.

   Item 2(c)    Citizenship:
                MFC is organized and exists under the laws of Canada.
                JHA and MFC Global (U.S.) are organized and exist under the laws
                of the State of Delaware.

   Item 2(d)    Title of Class of Securities:
                Common Stock

   Item 2(e)    CUSIP Number:
                03460L100

   Item 3       If the Statement is being filed  pursuant to Rule  13d-1(b),  or
                13d-2(b), check whether the person filing is a:

                MFC:     (g) (X) Parent  Holding  Company,  in accordance  with
                                 ss.240.13d-1(b)(ii)(G).

                JHA:     (e) (X) Investment  Adviser registered under ss.203 of
                                 the Investment Advisers Act of 1940.

                MFC Global
                (U.S.):  (e) (X) Investment  Adviser registered under ss.203 of
                                 the Investment Advisers Act of 1940.

   Item 4       Ownership:

                (a) Amount Beneficially  Owned: JHA has beneficial  ownership of
                    879,900   shares  and  MFC  Global  (U.S.)  has   beneficial
                    ownership of 1,137,900  shares of Common Stock.  Through its
                    parent-subsidiary relationship to JHA and MFC Global (U.S.),
                    MFC may be deemed to have beneficial ownership of these same
                    shares.


                           PAGE 5 OF 9 PAGES


               (b) Percent of Class: Of the 20,299,720 shares outstanding as of
                   October 20, 2006, according to the issuer's quarterly report
                   on form 10-Q for the period ended  September  30, 2006,  JHA
                   held 4.3% and MFC Global  (U.S.)  held 5.6%.  The  aggregate
                   percentage  held as of December 31, 2006 (after  eliminating
                   double  counting as a result of shared  investment or voting
                   discretion) by all reporting persons was 5.6%.

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

                   (i)  sole power to vote or to direct the vote:
                        MFC  Global  (U.S.)  has sole power to vote or to direct
                        the voting of 258,000 shares it beneficially owns.

                   (ii) shared power to vote or to direct the vote:
                        JHA has shared  power to vote or to direct the voting of
                        the shares it  beneficially  owns. MFC Global (U.S.) has
                        shared  power to vote or to direct the voting of 879,900
                        shares it beneficially owns.

                   (iii)sole power to dispose or  to direct the disposition of:
                        MFC Global (U.S.) has sole power to dispose or to direct
                        the disposition of 258,000 shares it beneficially owns.

                   (iv) shared power to dispose or to direct the disposition of:
                        JHA  has  shared  power  to  dispose  or to  direct  the
                        disposition  of the  shares it  beneficially  owns.  MFC
                        Global  (U.S.) has shared  power to dispose or to direct
                        the disposition of 879,900 shares it beneficially owns.

   Item 5       Ownership of Five Percent or Less of a Class:
                Not applicable.

   Item 6       Ownership of More than Five Percent on Behalf of Another Person:
                Not applicable.

   Item 7       Identification and Classification of the Subsidiary which
                Acquired the Security Being Reported on by the Parent Holding
                Company:
                See Items 3 and 4 above.

   Item 8       Identification and Classification of Members of the Group:
                Not applicable.

   Item 9       Notice of Dissolution of a Group:
                Not applicable.

   Item 10      Certification:
                By signing below the undersigned certifies that, to the best of
                its 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.


                             PAGE 6 OF 9 PAGES


                                 SIGNATURE

    After reasonable  inquiry and to the best of its knowledge and belief,  each
of the undersigned certifies that the information set forth in this statement is
true, complete and correct.


                                 Manulife Financial Corporation


                                 By:      /s/ Scott A. Lively
                                 Name:    Scott A. Lively
Dated: February 1, 2007          Title:   Attorney in Fact*


                                 John Hancock Advisers, LLC


                                 By:      /s/ Francis V. Knox Jr.
                                 Name:    Francis V. Knox Jr.
Dated: February 1, 2007          Title:   Vice President and Chief Compliance
                                          Officer


                                 MFC Global Investment Management (U.S.), LLC


                                 By:      /s/ Francis V. Knox Jr.
                                 Name:    Francis V. Knox Jr.
Dated: February 1, 2007          Title:   Vice President and Chief Compliance
                                          Officer

* Signed  pursuant to a Power of  Attorney  dated  January 31, 2007  included as
  Exhibit B to this Schedule 13G.



                                PAGE 7 OF 9 PAGES


EXHIBIT A
                             JOINT FILING AGREEMENT
                             ----------------------

     Manulife Financial  Corporation,  John Hancock Advisers, LLC and MFC Global
Investment  Management  (U.S.), LLC agree that the Initial Schedule 13G to which
this  Agreement is attached,  relating to the Common Stock of Anesiva,  Inc., is
filed on behalf of each of them.


                                 Manulife Financial Corporation


                                 By:      /s/ Scott A. Lively
                                 Name:    Scott A. Lively
Dated: February 1, 2007          Title:   Attorney in Fact*


                                 John Hancock Advisers, LLC


                                 By:      /s/ Francis V. Knox Jr.
                                 Name:    Francis V. Knox Jr.
Dated: February 1, 2007          Title:   Vice President and Chief Compliance
                                          Officer


                                 MFC Global Investment Management (U.S.), LLC


                                 By:      /s/ Francis V. Knox Jr.
                                 Name:    Francis V. Knox Jr.
Dated: February 1, 2007          Title:   Vice President and Chief Compliance
                                          Officer

* Signed  pursuant to a Power of  Attorney  dated  January 31, 2007  included as
  Exhibit B to this Schedule 13G.


                                PAGE 8 OF 9 PAGES


EXHIBIT B
                                POWER OF ATTORNEY
                                -----------------

     KNOW ALL MEN BY THESE PRESENTS, that the undersigned hereby constitutes and
appoints  Emanuel Alves,  Lynn Dyer and Scott A. Lively,  and each of them, with
full power to act without the others, its true and lawful  attorneys-in-fact and
agents,  with full  power of  substitution,  for it and in its  name,  place and
stead, in any and all capacities,  to sign any and all  instruments,  schedules,
certificates,  agreements and documents,  and amendments to the foregoing,  that
may be  necessary,  desirable  or  appropriate  to be  executed  on its  behalf,
pursuant to Section 13 or Section 16 of the Securities  Exchange Act of 1934, as
amended,  and any and all regulations  promulgated  thereunder,  and to file the
same,  with  all  exhibits  thereto,  and  any  other  documents  in  connection
therewith,  with the  Securities  and Exchange  Commission,  granting  unto said
attorneys-in-fact and agents, and each of them, or their substitutes, full power
and  authority  to do and  perform  each  and  every  act and  thing  necessary,
desirable  or  appropriate,  as  fully  to  all  intents  and  purposes  as  the
undersigned  might or could do in person,  hereby  ratifying and  confirming all
that said  attorneys-in-fact and agents or any of them, or his or her substitute
or substitutes, may lawfully do or cause to be done by virtue hereof. This power
of attorney  shall be effective  until such time as the  undersigned  delivers a
written revocation thereof to the above-named attorneys-in-fact and agents.

     IN WITNESS  WHEREOF,  this power of attorney has been signed as of the 31st
day of January 2007.


                                   Manulife Financial Corporation



                                   By: /s/ J-P. Bisnaire
                                       ---------------------
                                       Name: J-P. Bisnaire
                                       Title: Senior Executive Vice President,
                                       Business Development and General Counsel








                                PAGE 9 OF 9 PAGES