content: <html>
  
  <head>
  
  
  
  
  
  </head>
  
  <body lang="EN-US">
  
  <div>
  
  <p style="color:windowtext;margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <div style="border:none;border-top:double windowtext 6.0pt;padding:0in 0in 0in 0in;">
  
  <p style="border:none;color:windowtext;margin:0in 0in .0001pt;padding:0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  </div>
  
  <p align="center" style="color:windowtext;margin:0in 0in .0001pt;text-align:center;"><b><font size="5" face="Times New Roman" style="font-size:18.0pt;font-weight:bold;">UNITED
  STATES<br>
  SECURITIES AND EXCHANGE COMMISSION</font></b></p>
  
  <p align="center" style="color:windowtext;margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">WASHINGTON,
  D. C. 20549</font></b></p>
  
  <p align="center" style="color:windowtext;margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p align="center" style="color:windowtext;margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p align="center" style="color:windowtext;margin:0in 0in .0001pt;text-align:center;"><b><font size="5" face="Times New Roman" style="font-size:18.0pt;font-weight:bold;">FORM&nbsp;8-K</font></b></p>
  
  <p align="center" style="color:windowtext;margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p align="center" style="color:windowtext;margin:0in 0in .0001pt;text-align:center;"><b><font size="3" face="Times New Roman" style="font-size:12.0pt;font-weight:bold;">CURRENT REPORT<br>
  PURSUANT TO SECTION&nbsp;13 OR 15(d)</font></b></p>
  
  <p align="center" style="color:windowtext;margin:0in 0in .0001pt;text-align:center;"><b><font size="3" face="Times New Roman" style="font-size:12.0pt;font-weight:bold;">OF THE SECURITIES EXCHANGE ACT OF 1934</font></b></p>
  
  <p align="center" style="color:windowtext;margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p align="center" style="color:windowtext;margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">DATE
  OF REPORT (DATE OF EARLIEST EVENT REPORTED):</font></p>
  
  <p align="center" style="color:windowtext;margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">April&nbsp;23, 2008</font></b></p>
  
  <p align="center" style="color:windowtext;margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p align="center" style="color:windowtext;margin:0in 0in .0001pt;text-align:center;"><b><font size="5" face="Times New Roman" style="font-size:18.0pt;font-weight:bold;">GENZYME
  CORPORATION</font></b></p>
  
  <p align="center" style="color:windowtext;margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(Exact name of registrant
  as specified in its charter)</font></p>
  
  <p style="color:windowtext;margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <div align="center">
  
  <table border="0" cellspacing="0" cellpadding="0" width="100%" style="border-collapse:collapse;width:100.0%;">
   <tr>
    <td width="32%" valign="top" style="padding:0in .7pt 0in .7pt;width:32.0%;">
    <p align="center" style="color:windowtext;margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Massachusetts</font></b></p>
    </td>
    <td width="2%" valign="bottom" style="padding:0in .7pt 0in .7pt;width:2.0%;">
    <p style="color:windowtext;margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:1.0pt;font-weight:bold;">&nbsp;</font></b></p>
    </td>
    <td width="32%" valign="top" style="padding:0in .7pt 0in .7pt;width:32.0%;">
    <p align="center" style="color:windowtext;margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">0-14680</font></b></p>
    </td>
    <td width="2%" valign="bottom" style="padding:0in .7pt 0in .7pt;width:2.0%;">
    <p style="color:windowtext;margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:1.0pt;font-weight:bold;">&nbsp;</font></b></p>
    </td>
    <td width="32%" valign="top" style="padding:0in .7pt 0in .7pt;width:32.0%;">
    <p align="center" style="color:windowtext;margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">06-1047163</font></b></p>
    </td>
   </tr>
   <tr>
    <td width="32%" valign="top" style="padding:0in .7pt 0in .7pt;width:32.0%;">
    <p align="center" style="color:windowtext;margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(State or other
    jurisdiction of incorporation or organization)</font></p>
    </td>
    <td width="2%" valign="bottom" style="padding:0in .7pt 0in .7pt;width:2.0%;">
    <p style="color:windowtext;margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
    </td>
    <td width="32%" valign="top" style="padding:0in .7pt 0in .7pt;width:32.0%;">
    <p align="center" style="color:windowtext;margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(Commission file
    number)</font></p>
    </td>
    <td width="2%" valign="bottom" style="padding:0in .7pt 0in .7pt;width:2.0%;">
    <p style="color:windowtext;margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
    </td>
    <td width="32%" valign="top" style="padding:0in .7pt 0in .7pt;width:32.0%;">
    <p align="center" style="color:windowtext;margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(IRS employer
    identification number)</font></p>
    </td>
   </tr>
  </table>
  
  </div>
  
  <p style="color:windowtext;margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p align="center" style="color:windowtext;margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">500 Kendall Street, Cambridge, Massachusetts 02142</font></b></p>
  
  <p align="center" style="color:windowtext;margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(Address of Principal
  Executive Offices)&#160; (Zip Code)</font></p>
  
  <p align="center" style="color:windowtext;margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p align="center" style="color:windowtext;margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Registrant&#146;s telephone
  number, including area code:</font></p>
  
  <p align="center" style="color:windowtext;margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">(617) 252-7500</font></b></p>
  
  <p align="center" style="color:windowtext;margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p style="color:windowtext;margin:0in 0in .0001pt;text-autospace:none;text-indent:.25in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;layout-grid-mode:both;">Check
  the appropriate box below if the Form&nbsp;8-K filing is intended to
  simultaneously satisfy the filing obligation of the registrant under any of the
  following provisions (see General Instruction A.2. below):</font></p>
  
  <p style="color:windowtext;margin:0in 0in .0001pt;text-autospace:none;text-indent:.25in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <div align="center">
  
  <table border="0" cellspacing="0" cellpadding="0" width="100%" style="border-collapse:collapse;width:100.0%;">
   <tr>
    <td width="5%" valign="top" style="padding:0in .7pt 0in .7pt;width:5.0%;">
    <p align="center" style="color:windowtext;margin:0in 0in .0001pt;text-align:center;text-autospace:none;"><font size="2" face="Wingdings" style="font-size:10.0pt;layout-grid-mode:both;">o</font></p>
    </td>
    <td width="95%" valign="top" style="padding:0in .7pt 0in .7pt;width:95.0%;">
    <p style="color:windowtext;margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;layout-grid-mode:both;">Written communications
    pursuant to Rule&nbsp;425 under the Securities Act (17 CFR 230.425)</font></p>
    </td>
   </tr>
   <tr>
    <td width="5%" valign="top" style="padding:0in .7pt 0in .7pt;width:5.0%;">
    <p align="center" style="color:windowtext;margin:0in 0in .0001pt;text-align:center;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
    </td>
    <td width="95%" valign="top" style="padding:0in .7pt 0in .7pt;width:95.0%;">
    <p style="color:windowtext;margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
    </td>
   </tr>
   <tr>
    <td width="5%" valign="top" style="padding:0in .7pt 0in .7pt;width:5.0%;">
    <p align="center" style="color:windowtext;margin:0in 0in .0001pt;text-align:center;text-autospace:none;"><font size="2" face="Wingdings" style="font-size:10.0pt;layout-grid-mode:both;">o</font></p>
    </td>
    <td width="95%" valign="top" style="padding:0in .7pt 0in .7pt;width:95.0%;">
    <p style="color:windowtext;margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;layout-grid-mode:both;">Soliciting material pursuant
    to Rule&nbsp;14a-12 under the Exchange Act (17 CFR 240.14a-12)</font></p>
    </td>
   </tr>
   <tr>
    <td width="5%" valign="top" style="padding:0in .7pt 0in .7pt;width:5.0%;">
    <p align="center" style="color:windowtext;margin:0in 0in .0001pt;text-align:center;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
    </td>
    <td width="95%" valign="top" style="padding:0in .7pt 0in .7pt;width:95.0%;">
    <p style="color:windowtext;margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
    </td>
   </tr>
   <tr>
    <td width="5%" valign="top" style="padding:0in .7pt 0in .7pt;width:5.0%;">
    <p align="center" style="color:windowtext;margin:0in 0in .0001pt;text-align:center;text-autospace:none;"><font size="2" face="Wingdings" style="font-size:10.0pt;layout-grid-mode:both;">o</font></p>
    </td>
    <td width="95%" valign="top" style="padding:0in .7pt 0in .7pt;width:95.0%;">
    <p style="color:windowtext;margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;layout-grid-mode:both;">Pre-commencement
    communications pursuant to Rule&nbsp;14d-2(b)&nbsp;under the Exchange Act (17
    CFR 240.14d-2(b))</font></p>
    </td>
   </tr>
   <tr>
    <td width="5%" valign="top" style="padding:0in .7pt 0in .7pt;width:5.0%;">
    <p align="center" style="color:windowtext;margin:0in 0in .0001pt;text-align:center;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
    </td>
    <td width="95%" valign="top" style="padding:0in .7pt 0in .7pt;width:95.0%;">
    <p style="color:windowtext;margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
    </td>
   </tr>
   <tr>
    <td width="5%" valign="top" style="padding:0in .7pt 0in .7pt;width:5.0%;">
    <p align="center" style="color:windowtext;margin:0in 0in .0001pt;text-align:center;text-autospace:none;"><font size="2" face="Wingdings" style="font-size:10.0pt;layout-grid-mode:both;">o</font></p>
    </td>
    <td width="95%" valign="top" style="padding:0in .7pt 0in .7pt;width:95.0%;">
    <p style="color:windowtext;margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;layout-grid-mode:both;">Pre-commencement
    communications pursuant to Rule&nbsp;13e-4(c)&nbsp;under the Exchange Act (17
    CFR 240.13e-4(c))</font></p>
    </td>
   </tr>
  </table>
  
  </div>
  
  <p style="color:windowtext;margin:0in 0in .0001pt .25in;text-autospace:none;text-indent:-.25in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <div style="border:none;border-bottom:double windowtext 6.0pt;padding:0in 0in 0in 0in;">
  
  <p style="border:none;color:windowtext;margin:0in 0in .0001pt .25in;padding:0in;text-autospace:none;text-indent:-.25in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  </div>
  
  <p style="color:windowtext;margin:0in 0in .0001pt .25in;text-autospace:none;text-indent:-.25in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <div style="color:windowtext;margin:0in 0in .0001pt;text-autospace:none;"><hr size="3" width="100%" noshade color="#010101" align="left"></div>
  
  </div>
  <!-- SEQ.=1,FOLIO='',FILE='C:\JMS\tsauer\08-12235-1\task2883690\12235-1-ba.htm',USER='tsauer',CD='Apr 22 21:42 2008' -->
  
  
  <br clear="all" style="page-break-before:always;">
  
  
  <div style="font-family:Times New Roman;">
  
  <p align="center" style="color:windowtext;margin:0in 0in .0001pt;text-align:center;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p style="color:black;margin:0in 0in .0001pt;"><font size="2" color="black" face="Times New Roman" style="color:windowtext;font-size:10.0pt;">&nbsp;</font></p>
  
  <p style="color:black;margin:0in 0in .0001pt;"><b><font size="2" color="black" face="Times New Roman" style="color:windowtext;font-size:10.0pt;font-weight:bold;">Item 2.02&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; Results of Operations and Financial Condition.</font></b></p>
  
  <p style="color:black;margin:0in 0in .0001pt;"><font size="2" color="black" face="Times New Roman" style="color:windowtext;font-size:10.0pt;">&nbsp;</font></p>
  
  <p style="color:windowtext;margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">On
  April&nbsp;23, 2008, Genzyme Corporation issued a press release containing its
  results of operations and financial condition for the three month period ended March&nbsp;31,
  2008.&#160; A copy of the press release is furnished
  as Exhibit&nbsp;99 to this Form&nbsp;8-K.</font></p>
  
  <p style="color:windowtext;margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p style="color:windowtext;margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;layout-grid-mode:both;">The press release furnished herewith includes certain
  non-GAAP financial measures that involve adjustments to GAAP figures.&nbsp;
  Genzyme believes that these non-GAAP financial measures, when considered
  together with the GAAP figures, can enhance an overall understanding of Genzyme&#146;s
  past financial performance and its prospects for the future.&nbsp; The non-GAAP
  financial measures are included with the intent of providing both management
  and investors with a more complete understanding of underlying operational
  results and trends.&nbsp; In addition, these non-GAAP financial measures are
  among the primary indicators Genzyme management uses for planning and
  forecasting purposes and measuring the company&#146;s performance.&nbsp; These
  non-GAAP financial measures are not intended to be considered in isolation or
  as a substitute for GAAP figures.&nbsp; A reconciliation of the non-GAAP to
  GAAP figures can be found following the text of the press release.</font></p>
  
  <p style="color:windowtext;margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p style="color:windowtext;margin:0in 0in .0001pt 1.0in;text-indent:-1.0in;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Item 9.01</font></b><b><font size="1" style="font-size:3.0pt;font-weight:bold;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font></b><b><font size="2" style="font-size:10.0pt;font-weight:bold;">Financial
  Statements and Exhibits.</font></b></p>
  
  <p style="color:windowtext;margin:0in 0in .0001pt 1.0in;text-indent:-1.0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <table border="0" cellspacing="0" cellpadding="0" width="100%" style="border-collapse:collapse;width:100.0%;">
   <tr>
    <td width="5%" valign="top" style="padding:0in .7pt 0in .7pt;width:5.92%;">
    <p style="color:black;margin:0in 0in .0001pt;"><font size="2" color="black" face="Times New Roman" style="color:windowtext;font-size:1.0pt;">&nbsp;</font></p>
    </td>
    <td width="5%" valign="top" style="padding:0in .7pt 0in .7pt;width:5.92%;">
    <p style="color:black;margin:0in 0in .0001pt;"><font size="2" color="black" face="Times New Roman" style="color:windowtext;font-size:10.0pt;">(d)</font></p>
    </td>
    <td width="5%" valign="bottom" style="padding:0in .7pt 0in .7pt;width:5.9%;">
    <p style="color:black;margin:0in 0in .0001pt;"><font size="2" color="black" face="Times New Roman" style="color:windowtext;font-size:1.0pt;">&nbsp;</font></p>
    </td>
    <td width="82%" valign="top" style="padding:0in .7pt 0in .7pt;width:82.26%;">
    <p style="color:black;margin:0in 0in .0001pt;"><font size="2" color="black" face="Times New Roman" style="color:windowtext;font-size:10.0pt;">Exhibits</font></p>
    </td>
   </tr>
   <tr>
    <td width="5%" valign="top" style="padding:0in .7pt 0in .7pt;width:5.92%;">
    <p style="color:black;margin:0in 0in .0001pt;"><font size="2" color="black" face="Times New Roman" style="color:windowtext;font-size:10.0pt;">&nbsp;</font></p>
    </td>
    <td width="5%" valign="top" style="padding:0in .7pt 0in .7pt;width:5.92%;">
    <p style="color:black;margin:0in 0in .0001pt;"><font size="2" color="black" face="Times New Roman" style="color:windowtext;font-size:10.0pt;">&nbsp;</font></p>
    </td>
    <td width="5%" valign="bottom" style="padding:0in .7pt 0in .7pt;width:5.9%;">
    <p style="color:black;margin:0in 0in .0001pt;"><font size="2" color="black" face="Times New Roman" style="color:windowtext;font-size:10.0pt;">&nbsp;</font></p>
    </td>
    <td width="82%" valign="top" style="padding:0in .7pt 0in .7pt;width:82.26%;">
    <p style="color:black;margin:0in 0in .0001pt;"><font size="2" color="black" face="Times New Roman" style="color:windowtext;font-size:10.0pt;">&nbsp;</font></p>
    </td>
   </tr>
   <tr>
    <td width="5%" valign="top" style="padding:0in .7pt 0in .7pt;width:5.92%;">
    <p style="color:black;margin:0in 0in .0001pt;"><font size="2" color="black" face="Times New Roman" style="color:windowtext;font-size:1.0pt;">&nbsp;</font></p>
    </td>
    <td width="5%" valign="top" style="padding:0in .7pt 0in .7pt;width:5.92%;">
    <p style="color:black;margin:0in 0in .0001pt;"><font size="2" color="black" face="Times New Roman" style="color:windowtext;font-size:10.0pt;">99</font></p>
    </td>
    <td width="5%" valign="bottom" style="padding:0in .7pt 0in .7pt;width:5.9%;">
    <p style="color:black;margin:0in 0in .0001pt;"><font size="2" color="black" face="Times New Roman" style="color:windowtext;font-size:1.0pt;">&nbsp;</font></p>
    </td>
    <td width="82%" valign="top" style="padding:0in .7pt 0in .7pt;width:82.26%;">
    <p style="color:black;margin:0in 0in .0001pt;"><font size="2" color="black" face="Times New Roman" style="color:windowtext;font-size:10.0pt;">Press Release of Genzyme Corporation dated
    April&nbsp;23, 2008.</font></p>
    </td>
   </tr>
  </table>
  
  <p style="color:black;margin:0in 0in .0001pt;"><font size="2" color="black" face="Times New Roman" style="color:windowtext;font-size:10.0pt;">&nbsp;</font></p>
  
  <p align="center" style="color:windowtext;margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p align="center" style="color:windowtext;margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">2</font></p>
  
  <div style="color:windowtext;margin:0in 0in .0001pt;"><hr size="3" width="100%" noshade color="#010101" align="left"></div>
  
  </div>
  <!-- SEQ.=1,FOLIO='2',FILE='C:\JMS\tsauer\08-12235-1\task2883690\12235-1-ba.htm',USER='tsauer',CD='Apr 22 21:42 2008' -->
  
  
  <br clear="all" style="page-break-before:always;">
  
  
  <div>
  
  <p align="center" style="color:windowtext;margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p style="color:windowtext;margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p align="center" style="color:windowtext;margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">SIGNATURE</font></b></p>
  
  <p align="center" style="color:windowtext;margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p style="color:windowtext;margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; Pursuant to the requirements
  of the Securities Exchange Act of 1934, the registrant has duly caused this
  report to be signed on its behalf by the undersigned hereunto duly authorized.</font></p>
  
  <p style="color:windowtext;margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p style="color:windowtext;margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <table border="0" cellspacing="0" cellpadding="0" width="100%" style="border-collapse:collapse;width:100.0%;">
   <tr>
    <td width="49%" valign="top" style="padding:0in .7pt 0in .7pt;width:49.86%;">
    <p style="color:windowtext;margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
    </td>
    <td width="50%" colspan="2" valign="top" style="padding:0in .7pt 0in .7pt;width:50.14%;">
    <p style="color:windowtext;margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">GENZYME CORPORATION</font></b></p>
    </td>
   </tr>
   <tr>
    <td width="49%" valign="top" style="padding:0in .7pt 0in .7pt;width:49.86%;">
    <p style="color:windowtext;margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
    </td>
    <td width="4%" valign="top" style="padding:0in .7pt 0in .7pt;width:4.04%;">
    <p style="color:windowtext;margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
    </td>
    <td width="46%" valign="top" style="padding:0in .7pt 0in .7pt;width:46.1%;">
    <p style="color:windowtext;margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
    </td>
   </tr>
   <tr>
    <td width="49%" valign="top" style="padding:0in .7pt 0in .7pt;width:49.86%;">
    <p style="color:windowtext;margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
    </td>
    <td width="4%" valign="top" style="padding:0in .7pt 0in .7pt;width:4.04%;">
    <p style="color:windowtext;margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
    </td>
    <td width="46%" valign="top" style="padding:0in .7pt 0in .7pt;width:46.1%;">
    <p style="color:windowtext;margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
    </td>
   </tr>
   <tr>
    <td width="49%" valign="top" style="padding:0in .7pt 0in .7pt;width:49.86%;">
    <p style="color:windowtext;margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
    </td>
    <td width="4%" valign="top" style="padding:0in .7pt 0in .7pt;width:4.04%;">
    <p style="color:windowtext;margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
    </td>
    <td width="46%" valign="top" style="padding:0in .7pt 0in .7pt;width:46.1%;">
    <p style="color:windowtext;margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
    </td>
   </tr>
   <tr>
    <td width="49%" valign="top" style="padding:0in .7pt 0in .7pt;width:49.86%;">
    <p style="color:windowtext;margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Dated: April&nbsp;23, 2008</font></p>
    </td>
    <td width="4%" valign="top" style="padding:0in .7pt 0in .7pt;width:4.04%;">
    <p style="color:windowtext;margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">By: </font></p>
    </td>
    <td width="46%" valign="top" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in .7pt 0in .7pt;width:46.1%;">
    <p style="color:windowtext;margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">/s/ Michael S. Wyzga</font></p>
    </td>
   </tr>
   <tr>
    <td width="49%" valign="top" style="padding:0in .7pt 0in .7pt;width:49.86%;">
    <p style="color:windowtext;margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
    </td>
    <td width="4%" valign="top" style="padding:0in .7pt 0in .7pt;width:4.04%;">
    <p style="color:windowtext;margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
    </td>
    <td width="46%" valign="top" style="padding:0in .7pt 0in .7pt;width:46.1%;">
    <p style="color:windowtext;margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Michael S. Wyzga</font></p>
    </td>
   </tr>
   <tr>
    <td width="49%" valign="top" style="padding:0in .7pt 0in .7pt;width:49.86%;">
    <p style="color:windowtext;margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
    </td>
    <td width="4%" valign="top" style="padding:0in .7pt 0in .7pt;width:4.04%;">
    <p style="color:windowtext;margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
    </td>
    <td width="46%" valign="top" style="padding:0in .7pt 0in .7pt;width:46.1%;">
    <p style="color:windowtext;margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Executive Vice President,
    Finance;</font></p>
    </td>
   </tr>
   <tr>
    <td width="49%" valign="top" style="padding:0in .7pt 0in .7pt;width:49.86%;">
    <p style="color:windowtext;margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
    </td>
    <td width="4%" valign="top" style="padding:0in .7pt 0in .7pt;width:4.04%;">
    <p style="color:windowtext;margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
    </td>
    <td width="46%" valign="top" style="padding:0in .7pt 0in .7pt;width:46.1%;">
    <p style="color:windowtext;margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Chief Financial Officer;
    and</font></p>
    </td>
   </tr>
   <tr>
    <td width="49%" valign="top" style="padding:0in .7pt 0in .7pt;width:49.86%;">
    <p style="color:windowtext;margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
    </td>
    <td width="4%" valign="top" style="padding:0in .7pt 0in .7pt;width:4.04%;">
    <p style="color:windowtext;margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
    </td>
    <td width="46%" valign="top" style="padding:0in .7pt 0in .7pt;width:46.1%;">
    <p style="color:windowtext;margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Chief Accounting Officer</font></p>
    </td>
   </tr>
  </table>
  
  <p align="center" style="color:windowtext;margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p align="center" style="color:windowtext;margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p align="center" style="color:windowtext;margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">3</font></p>
  
  <div style="color:windowtext;margin:0in 0in .0001pt;"><hr size="3" width="100%" noshade color="#010101" align="left"></div>
  
  </div>
  <!-- SEQ.=1,FOLIO='3',FILE='C:\JMS\tsauer\08-12235-1\task2883690\12235-1-ba.htm',USER='tsauer',CD='Apr 22 21:42 2008' -->
  
  
  </body>
  
  </html>
metadata_documents: [{"type": "8-K", "sequence": "1", "filename": "a08-12235_18k.htm", "description": "8-K", "secsgml_size_bytes": 29410}]
metadata_filer: {"company-data": {"conformed-name": "GENZYME CORP", "cik": "0000732485", "assigned-sic": "2836", "irs-number": "061047163", "state-of-incorporation": "MA", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "000-14680", "film-number": "08770841"}, "business-address": {"street1": "ONE KENDALL SQ", "city": "CAMBRIDGE", "state": "MA", "zip": "02139", "phone": "6172527500"}, "mail-address": {"street1": "ONE KENDALL SQUARE", "city": "CAMBRIDGE", "state": "MA", "zip": "02139"}}
text: UNITED
  STATES
  SECURITIES AND EXCHANGE COMMISSION
  WASHINGTON,
  D. C. 20549
  FORM 8-K
  CURRENT REPORT
  PURSUANT TO SECTION 13 OR 15(d)
  OF THE SECURITIES EXCHANGE ACT OF 1934
  DATE
  OF REPORT (DATE OF EARLIEST EVENT REPORTED):
  April 23, 2008
  GENZYME
  CORPORATION
  (Exact name of registrant
  as specified in its charter)
  Massachusetts
  0-14680
  06-1047163
  (State or other
    jurisdiction of incorporation or organization)
  (Commission file
    number)
  (IRS employer
    identification number)
  500 Kendall Street, Cambridge, Massachusetts 02142
  (Address of Principal
  Executive Offices)  (Zip Code)
  Registrant's telephone
  number, including area code:
  (617) 252-7500
  Check
  the appropriate box below if the Form 8-K filing is intended to
  simultaneously satisfy the filing obligation of the registrant under any of the
  following provisions (see General Instruction A.2. below):
  o
  Written communications
    pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
  o
  Soliciting material pursuant
    to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
  o
  Pre-commencement
    communications pursuant to Rule 14d-2(b) under the Exchange Act (17
    CFR 240.14d-2(b))
  o
  Pre-commencement
    communications pursuant to Rule 13e-4(c) under the Exchange Act (17
    CFR 240.13e-4(c))
  Item 2.02               Results of Operations and Financial Condition.
  On
  April 23, 2008, Genzyme Corporation issued a press release containing its
  results of operations and financial condition for the three month period ended March 31,
  2008.  A copy of the press release is furnished
  as Exhibit 99 to this Form 8-K.
  The press release furnished herewith includes certain
  non-GAAP financial measures that involve adjustments to GAAP figures. 
  Genzyme believes that these non-GAAP financial measures, when considered
  together with the GAAP figures, can enhance an overall understanding of Genzyme's
  past financial performance and its prospects for the future.  The non-GAAP
  financial measures are included with the intent of providing both management
  and investors with a more complete understanding of underlying operational
  results and trends.  In addition, these non-GAAP financial measures are
  among the primary indicators Genzyme management uses for planning and
  forecasting purposes and measuring the company's performance.  These
  non-GAAP financial measures are not intended to be considered in isolation or
  as a substitute for GAAP figures.  A reconciliation of the non-GAAP to
  GAAP figures can be found following the text of the press release.
  Item 9.01
  Financial
  Statements and Exhibits.
  (d)
  Exhibits
  99
  Press Release of Genzyme Corporation dated
    April 23, 2008.
  2
  SIGNATURE
  Pursuant to the requirements
  of the Securities Exchange Act of 1934, the registrant has duly caused this
  report to be signed on its behalf by the undersigned hereunto duly authorized.
  GENZYME CORPORATION
  Dated: April 23, 2008
  By:
  /s/ Michael S. Wyzga
  Michael S. Wyzga
  Executive Vice President,
    Finance;
  Chief Financial Officer;
    and
  Chief Accounting Officer
  3