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Biotech / Medical : Corixa [CRXA] - cancer vaccines

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To: Andreas Helke who started this subject12/14/2002 1:21:43 AM
From: sim1  Read Replies (1) of 222
 
GSK/Corixa Likely To Emphasize Bexxar’s
Durability Of Response At Cmte. Meeting

GlaxoSmithKline and Corixa will likely highlight a 14.7-month duration of response
for Bexxar in patients with relapse or refractory low grade non-Hodgkin’s lymphoma
in its presentation before FDA’s Oncologic Drugs Advisory Committee on Dec. 17.

Long-term data that the companies have collected from a follow-up of 250 patients
in five trials show an overall response rate of 56% for Bexxar. Among patients who
experienced a complete response during the trials, the survival rate is 70% with a
median CR duration of over 7.8 years.

GSK and Corixa hope the data analysis will support a recommendation for approval
of Bexxar (tositumomab and iodine I 131 tositumomab) without requiring additional
data.

FDA concluded that more data would be necessary for approval in a March 12
"complete review" letter for the BLA. Corixa and GSK appealed the FDA action
requesting a committee review and submitted the new data analysis to FDA in
October.

Recently, the companies said that FDA has accepted the October submission as a
complete response to issues raised in its complete review letter. The agency is
treating the submission as substantial new information which will require an
extension of the user fee review deadline for Bexxar to May 2, 2003.

It is the second time that Corixa has submitted more information in response to a
complete review letter for Bexxar. FDA wrote the company in March 2001 requesting
more safety and efficacy data from ongoing studies. GSK and Corixa had predicted a
committee review that year.

Corixa is seeking an indication for Bexxar for the treatment of patients with relapsed
or refractory low-grade follicular or transformed low-grade B-cell non-Hodgkin’s
lymphoma, including patients with rituximab-refractory follicular non-Hodgkin’s
lymphoma.<snip>



Posted: Friday, December 13, 2002

fdaadvisorycommittee.com
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