AnorMED announces 73 percent of cancer patients who failed prior chemotherapy mobilizations succeed in collecting enough stem ce
12 Dezember 2005 - 2:20PM
PR Newswire (US)
VANCOUVER, Dec. 12 /PRNewswire-FirstCall/ -- AnorMED
(AMEX:AOMAMEX:TSX:AOM) announces the first report of clinical
results on MOZOBIL (AMD3100), a first in class stem cell mobilizer,
from the compassionate use protocol (CUP) in cancer patients
requiring a stem cell transplant. Cancer patients enrolled in the
MOZOBIL CUP program failed prior attempts to collect stem cells for
transplant using standard mobilization regimens. Data reported
shows that re-mobilization with MOZOBIL and G-CSF allowed patients
to collect enough stem cells for a transplant. Preliminary results
on the first 70 CUP patients were released today in an oral
presentation given by Dr. Joseph McGuirk, Medical Director of the
Kansas City Blood and Marrow Transplant Program, at the American
Society of Hematology (ASH) conference in Atlanta. "Stem cell
mobilization is an important but difficult process for cancer
patients. Depending on the type of disease, more than 20 percent of
patients just can't mobilize enough stem cells, that later will get
them through the intense chemotherapy they need to survive. The
strongest predictor of success in transplantation is the number of
stem cells available for transplantation," said Dr. McGuirk. He
added, "MOZOBIL gave the patients in the compassionate use program
a fighting chance to collect enough stem cells for a potentially
life-saving transplant after prior attempts using G-CSF alone or
chemotherapy plus G-CSF mobilization failed." In 69/70 CUP patients
prior attempts to collect cells failed, including multiple prior
attempts in 16/70 patients. Prior mobilization regimens included:
33 using G-CSF alone; 17 using cyclophosphamide (chemotherapy) plus
G-CSF; 37 using cyclophosphamide plus G-CSF plus other agents; and
six using other growth factors or regimens. Preliminary results
from CUP highlight that of the 30 patients in CUP who failed prior
collections using chemotherapy plus G-CSF, 22/30 (73%) were
successful in collecting the minimum number (2 million CD34+ stem
cells/kg of patient weight) of stem cells for transplant when
re-mobilized with MOZOBIL and G-CSF. For the 27 patients, who
failed prior collection attempts using cytokine regimens (G-CSF and
other), 13/27 (48%) were successful in collecting the minimum
number of stem cells for transplant when re-mobilized with MOZOBIL
and G-CSF. Overall 42/70 CUP patients (60%) collected the minimum
number of stem cells required to go onto transplant (2 million
CD34+stem cells/kg of patient weight), without having to pool prior
collections, when re-mobilized with MOZOBIL and G-CSF. The median
collection for the 42 patients was 4.6 million CD34+ stem cells/kg
of patient weight. Of the 42 patients, 38 were transplanted, 3
expired prior to platelet engraftment due to disease progression
and 30 are now at six months post transplant or beyond.
-------------------------------------------------------------------------
Acute Non-Hodgkin's Multiple Hodgkin's Myelogenous Lymphoma Myeloma
Disease Leukemia Other CUP Patients (NHL) (MM) (HD) (AML)
-------------------------------------------------------------------------
Success with Remobilization with MOZOBIL +G-CSF 17/31 (55%) 9/14
(64%) 7/10 (70%) 4/8 (50%) 5/7 (71%)
-------------------------------------------------------------------------
"We are very pleased with the success of MOZOBIL in helping proven
failed mobilizers in our CUP program, who are most in need of new
mobilization options, go on to have a transplant" said Dr. Gary
Calandra, VP Clinical Development, AnorMED Inc. He added, "In
addition, we are pleased with the new clinical results presented at
ASH by many of our investigators showing the real potential of
MOZOBIL to help Hodgkin's patients as well as patients undergoing
allogeneic transplant. Although preliminary, we are also very
excited about the possibility that MOZOBIL may have a survival
benefit for transplant patients due to the increased number of
lymphocytes that can be collected when it is included in a
mobilization regimen." Additional results that were presented at
ASH are described in more detail below. All MOZOBIL abstracts are
available on the ASH website at http://www.hematology.org/ all
presentations and posters will be available on
http://www.anormed.com/ Other MOZOBIL Results Presented at ASH:
MOZOBIL & Hodgkin's Disease Also presented at ASH were results
from a Phase II study by lead investigator Dr. John DiPersio,
Chief, Division of Oncology, Professor of Medicine, Pathology and
Pediatrics, and Deputy Director, Siteman Cancer Center, Washington
University, was new clinical data from a Phase II study that
supports the role of MOZOBIL in helping patients with HD, who are
some of the most difficult patients to mobilize, collect more cells
for transplant. Twelve HD patients, 10 relapsed and two refractory,
were mobilized with G-CSF + MOZOBIL. All patients when mobilized
with MOZOBIL and G-CSF achieved the minimum 2 x 10(6) CD34+
cells/kg and a significantly higher proportion of patients achieved
the target collection of greater than or equal to 5 x 10(6) CD34+
cells/kg than did historical controls. When compared to historical
data in HD patients mobilized with G-CSF alone, MOZOBIL in
combination with G-CSF improves the proportion of patients
collecting the minimum 2 x 10(6) CD34+ cells/kg (78% vs. 100%) and
the proportion achieving the target collection of greater than or
equal to 5 x 10(6) CD34+ cells/kg (15% vs. 63%). In addition, the
median collection in the first two days of apheresis was
significantly better than historical controls. MOZOBIL &
Survival Benefit Also reported at ASH by investigators at the Mayo
Clinic was a retrospective study indicating MOZOBIL may provide a
survival benefit to cancer patients post-stem cell transplant due
to its ability to mobilize higher numbers of lymphocytes for
collection and infusion, translating into a faster immune recovery
post-transplant. The primary objective of this study was to
determine the difference in lymphocyte subpopulations in the stem
cell collections between NHL patients mobilized with MOZOBIL +
G-CSF versus NHL patients mobilized with G-CSF alone. The study
also compared progression-free survival at one year post-stem cell
transplant between patients transplanted with collections using
MOZOBIL +G-CSF and those transplanted with collections using G-CSF
alone. The apheresis products from seven patients with NHL
undergoing transplant who received MOZOBIL in addition to G-CSF as
a part of their mobilization regimen were compared to 29 patients
with NHL who had undergone stem cell mobilization with G-CSF alone.
Compared with G-CSF alone, patients who received MOZOBIL had an
increased lymphocyte subset in their collection product. In
addition, a higher absolute lymphocyte count at day 15 (ALC-15), as
a surrogate marker of immune reconstitution post-transplant, was
observed in the MOZOBIL group. The absolute ALC15 after autologous
stem cell transplantation is an independent, prognostic indicator
for survival in multiple hematological malignancies (Leukemia and
Lymphoma. 2005, 46: 1287-94). One year post transplant 7/7 patients
who received MOZOBIL were in complete remission compared to the
G-CSF group where 10/29 relapsed disease and 7/29 expired due to
disease progression. Further studies are warranted to determine
whether MOZOBIL may be used to optimize lymphocyte mobilization and
collection, helping to improve immune reconstitution and survival
post-ASCT. MOZOBIL & Allogeneic Transplant Additionally, Dr.
Steven Devine, Associate Professor of Medicine, Director, Blood and
Marrow Transplant Program, Ohio State University School of Medicine
reported an update on a pilot study from Washington University
using MOZOBIL as a single agent to mobilize stems cells in healthy
donors for an allogeneic transplant. Results to date show eight of
nine donors collected adequate stem cells to support an allograft.
The six transplanted patients have all experienced successful
engraftment and have had a median follow up period of 200 days.
About MOZOBIL MOZOBIL is the first in a new class of agents which
induces rapid mobilization of stem cells from the bone marrow into
the peripheral blood system. MOZOBIL is currently under clinical
investigation in North America and Europe as a potential new agent
for first line stem cell mobilization in cancer patients undergoing
a stem cell transplant, and is not yet approved for commercial use.
AnorMED is evaluating MOZOBIL in two Phase III studies ongoing in
the U.S. The Company plans to complete Phase III recruitment and
three month follow up by the end of calendar 2006. In addition,
AnorMED has a Phase II program for MOZOBIL that is ongoing in
transplant centers in the U.S., Canada and the European Union.
AnorMED also has an ongoing program for the Compassionate Use of
MOZOBIL that in conjunction with Phase II studies may be the basis
for Conditional Market Authorization submission in Europe planned
for 2007. To date, MOZOBIL has been administered to over 595
patients, and data from over 272 subjects and cancer patients has
been presented to date. The tradename MOZOBIL (plerixafor) will be
re-reviewed as part of the New Drug Application submission to the
U.S. FDA and will also be submitted to European regulatory
authorities for review at the appropriate time. AnorMED is a
chemistry-based biopharmaceutical company focused on the discovery,
development and commercialization of new therapeutic products in
the areas of hematology, HIV and oncology. Information on AnorMED
Inc. is available on the Company's website:
http://www.anormed.com/. Note: Certain of the statements contained
in this press release contain forward-looking statements which
involve known and unknown risks, uncertainties and other factors
which may cause the actual results, performance or achievements of
the Company, or industry results, to be materially different from
any future results, performance or achievements expressed or
implied by such forward-looking statements. The Company does not
expect to update any forward-looking statements as conditions
change. Investors are referred to the discussion of the risk
factors associated with the Company's business contained in the
Company's Final Short Form Prospectus dated December 1, 2005 and
filed with Canadian securities regulatory authorities and available
on SEDAR. For further information: Elisabeth Whiting, M.Sc. VP
Corporate Development & Communications Tel: 604-532-4667 Cell:
604-763-4682 E-mail: Kim Nelson, Ph.D. Manager, Investor Relations
Tel: 604-532-4654 Cell: 604-614-2886 Email: Notes to Editors and
Reporters: About Stem Cell Transplantation Stem cell
transplantation is a standard medical procedure used to restore the
immune system of patients who have had chemotherapy to treat
cancers of the immune system such as multiple myeloma and
non-Hodgkin's lymphoma, among others. The strongest predictor of
success in transplantation, measured by the rapid and durable
recovery of a patient's immune system, is the number of stem cells
available for transplantation. Approximately 45,000 stem cell
transplantations are performed yearly worldwide (IBMTR/ABMTR 2003).
Stem cells used to be collected from patients using an invasive
procedure called bone marrow transplant. This technique is now
being replaced by a new procedure called peripheral blood stem cell
transplant (PBSCT). In this procedure, stem cells are collected
from the circulating blood for transplantation. Prior to
collection, patients are given G-CSF which causes stem cells in the
body to multiply. The objective of this procedure is to get as many
stem cells as possible into the circulating blood where they can be
collected. Up to 65% of transplant patients have poor or
sub-optimal mobilization of stem cells from the bone marrow into
the bloodstream using standard mobilization regimens, such as G-CSF
and chemotherapy and G-CSF regimens (CIBMTR data 1998-2002).
Currently, there are no medical guidelines to predict which
patients will respond poorly to G-CSF mobilization. These patients
may require additional mobilization and cell collection sessions,
called apheresis, to achieve a sufficient number of stem cells for
transplantation. Some patients, particularly those transplanted
with a sub-optimal number of cells, experience a delayed recovery
of their immune system. These patients are at greater risk for
infection and may require additional days of antibiotics, blood
transfusions and extended hospitalization. Background on MOZOBIL
MOZOBIL has orphan drug status in both the U.S and the E.U. In
December 2004, AnorMED completed the Special Protocol Assessment
process with the U.S. FDA and agreed on the design and endpoints of
two pivotal Phase III studies. These studies are ongoing in major
transplant centers in the U.S. One study is enrolling 300
non-Hodgkin's lymphoma (NHL) patients and the other study 300
multiple myeloma (MM) patients. Both studies are randomized,
double-blind, placebo controlled, comparative trials of MOZOBIL
plus G-CSF versus placebo plus G-CSF. MOZOBIL is an inhibitor of
the CXCR4 chemokine receptor. The CXCR4 receptor is present on
white blood cells and among other functions, has been shown to play
a key regulatory role in the trafficking and homing of human CD34+
stem cells in the bone marrow. MOZOBIL is the first in a new class
of agents which induces rapid mobilization of stem cells from the
bone marrow into the peripheral blood system DATASOURCE: AnorMED
Inc. CONTACT: Elisabeth Whiting, M.Sc., VP Corporate Development
& Communications, Tel: (604) 532-4667, Cell: (604) 763-4682,
E-mail: ; Kim Nelson, Ph.D., Manager, Investor Relations, Tel:
(604) 532-4654, Cell: (604) 614-2886, Email:
Copyright
Moderate Allocation ETF (AMEX:AOM)
Historical Stock Chart
Von Dez 2024 bis Jan 2025
Moderate Allocation ETF (AMEX:AOM)
Historical Stock Chart
Von Jan 2024 bis Jan 2025