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


SCHEDULE TO
(Amendment No.1)

TENDER OFFER STATEMENT
UNDER SECTION 14(D)(1) OR SECTION 13(E)(1) OF THE SECURITIES EXCHANGE ACT OF 1934


ANORMED INC.
(Name Of Subject Company (Issuer))


GENZYME CORPORATION
DEMATAL CORP.
(Names of Filing Persons (Offerors))

COMMON SHARES, NO PAR VALUE
(Title of Class of Securities)

035910108
(CUSIP Number of Class of Securities)


Peter Wirth
Genzyme Corporation
One Kendall Square
Cambridge, MA 02139
Telephone: (617) 252-7500
(Name, address and telephone number of person authorized
to receive notices and communications on behalf of filing persons)

with copies to:

Paul Kinsella
Ropes & Gray LLP
One International Place
Boston, Massachusetts 02110
Telephone: (617) 951-7000

CALCULATION OF FILING FEE



Transaction Valuation*
  Amount Of Filing Fee**

$379,619,854.65   $40,619.32


*
Estimated solely for purposes of calculating amount of filing fee in accordance with Rule 0-11 under the Securities Exchange Act of 1934. The transaction value is based upon the offer to purchase 44,399,983 outstanding common shares, no par value, of AnorMED Inc. for the expected consideration in the tender offer of $8.55 per share. Such number of outstanding shares represents the total of 41,660,411 common shares outstanding as of August 28, 2006 and 2,739,572 common shares subject to options as of August 28, 2006 (in each case, as reported in AnorMED Inc.'s press release filed on Form 6-K on August 28, 2006).

**
The amount of filing fee is calculated in accordance with Rule 0-11 of the Securities Exchange Act of 1934, as amended, and Fee Rate Advisory No. 5 for fiscal year 2006 issued by the Securities and Exchange Commission on November 23, 2005. Such fee equals 0.0107% of the transaction value.

ý
Check the box if any part of the fee is offset as provided by Rule 0-11(a)(2) and identify the filing with which the offsetting fee was previously paid. Identify the previous filing by registration statement number or the Form or Schedule and the date of its filing.

  Amount Previously Paid: $40,619.32  
  Form or Registration No.: Schedule TO-T  
  Filing Party: Genzyme Corporation  
  Date Filed: September 1, 2006  

o
Check the box if the filing relates solely to preliminary communications made before the commencement of a tender offer.

Check the appropriate boxes below to designate any transactions to which the statement relates:

ý
third-party tender offer subject to Rule 14d-1.

o
issuer tender offer subject to Rule 13e-4.

o
going-private transaction subject to Rule 13e-3.

o
amendment to Schedule 13D under Rule 13d-2.

Check the following box if the filing is a final amendment reporting the results of the tender offer:    o




        This Statement amends and supplements the Tender Offer Statement on Schedule TO filed with the Securities and Exchange Commission on September 1, 2006 (the "Schedule TO") relating to a tender offer by Dematal Corp, a Nova Scotia unlimited company (the "Offeror") and a wholly-owned subsidiary of Genzyme Corporation, a Massachusetts corporation ("Parent"), to purchase all the outstanding common shares, no par value, (the "Shares"), of AnorMED Inc., a Canadian corporation (the "Company"), at a purchase price of $8.55 per Share, net to the seller in cash, without interest thereon, upon the terms and subject to the conditions set forth in the Offer to Purchase for Cash and Circular dated September 1, 2006 (the "Offer to Purchase" and the "Circular," respectively, and together, the "Offer to Purchase and Circular") and in the related Letter of Transmittal (the "Letter of Transmittal" which, together with the Offer to Purchase and Circular, as each may be amended and supplemented from time to time, constitute the "Offer").

ITEM 4.    TERMS OF THE TRANSACTION; ITEM 6. PURPOSES OF THE TRANSACTION

        The fourth paragraph of Section 3 of the Offer to Purchase, "Manner of Acceptance — General" (found at page 12 of the Offer to Purchase), is deleted and replaced by the following:

        The last paragraph of Section 6 of the Offer to Purchase, "Withdrawal of Deposited AnorMED Shares" (found at page 22 of the Offer to Purchase), is deleted and replaced by the following:

        The paragraph with the heading "Margin Requirements" of Section 14 of the Circular, "Effect of the Offer on the Market for Securities; Public Disclosure by AnorMED; Exchange Act Registration; Margin Requirements" (found at page 39 of the Circular), is deleted and replaced by the following:

ITEM 5.    PAST CONTACTS, TRANSACTIONS, NEGOTIATIONS AND AGREEMENTS

        Section 3 of the Circular, "Background to the Offer" (found at page 31 of the Circular) is amended to add the following:

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ITEM 11.    ADDITIONAL INFORMATION

        Conditions (d), (f), (g), (i), (j), (l), (m) and (o) to the Original Offer set out in Section 4 of the Offer to Purchase, "Conditions of the Offer" (found at pages 15 to 18 of the Offer to Purchase), are deleted and replaced by the following:

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5


        The second to last paragraph of Section 4 of the Offer to Purchase, "Conditions of the Offer" (found on page 18 of the Offer to Purchase), is deleted and replaced by the following:

        Section 8 of the Offer to Purchase, "Return of Deposited AnorMED Shares" (found at page 23 of the Offer to Purchase), is deleted and replaced by the following:

        The fifth paragraph of Section 13 of the Offer to Purchase, "Other Terms of the Offer" (found at page 26 of the Offer to Purchase), is deleted and replaced by the following:

        Item 11 of the Schedule TO is hereby amended and supplemented by adding the following:

        On October 6, 2006, the Offeror extended the Offer until 12:01 a.m. (Vancouver time) on October 23, 2006, unless further extended. The full text of the press release issued by the Parent on October 6, 2006 announcing the extension of the Offer is filed as Exhibit (a)(8) hereto and is incorporated by reference. The depositary for the Offer has advised the Parent and the Offeror that, as of 9:00 a.m., New York City time, on October 6, 2006, approximately 2,545 Shares had been tendered and not withdrawn from the Offer.

ITEM 12.    EXHIBITS

        See Exhibit Index immediately following the signature page.

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SIGNATURES

        After due 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.

    GENZYME CORPORATION
       
       
        Dated: October 6, 2006   By: /s/  PETER WIRTH      
Name: Peter Wirth
Title: Executive Vice President
       
       
    DEMATAL CORP.
       
       
        Dated: October 6, 2006   By: /s/  GEORGES GEMAYEL      
Name: Georges Gemayel
Title: Vice President

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EXHIBIT INDEX

EXHIBIT NUMBER

  DOCUMENT
(a)(1)   Offer to Purchase for Cash and Circular dated September 1, 2006.*
(a)(2)   Form of Letter of Transmittal.*
(a)(3)   Form of Notice of Guaranteed Delivery.*
(a)(4)   Form of Letter to Brokers, Dealers, Banks, Trust Companies and Other Nominees.*
(a)(5)   Form of Letter to Clients for Use by Brokers, Dealers, Banks, Trust Companies and Other Nominees.*
(a)(6)   Form of Guidelines for Certification of Foreign Status of Beneficial Owner for United States Tax Withholding on Form W-8BEN.*
(a)(7)   Summary Advertisement published in the Wall Street Journal, the Globe and Mail and La Presse on September 1, 2006.*
(a)(8)   Press Release issued by Genzyme Corporation dated October 6, 2006.
(b)   None.
(d)(1)   Confidentiality Agreement dated October 4, 2006 among Genzyme Corporation, Dematal Corp. and AnorMED Inc. (incorporated by reference from Exhibit (e)(1) to Amendment No. 11 to AnorMED's Solicitation/Recommendation statement on Schedule 14D-9, filed on October 5, 2006)*
(g)   None.
(h)   Opinion of Osler, Hoskin & Harcourt LLP (incorporated by reference from Offer to Purchase and Circular filed herewith as Exhibit (a)(1) under the heading "Certain Canadian Federal Income Tax Considerations").*

*    Previously filed.

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SIGNATURES
EXHIBIT INDEX