Bioenvision (NASDAQ:BIVN)
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Bioenvision, Inc. (NasdaqGM:BIVN) today announced new efficacy, survival
and safety data on Evoltra® from
its pivotal Phase II study BIOV-121 at the 48th
Annual Meeting of the American Society of Hematology (ASH) in Orlando,
Florida. These detailed data demonstrate significantly higher response
rates and improved survival compared to the current standard of care,
especially in high risk sub groups.
These data were reported in several presentations given by Prof. Alan
Burnett, M.D., Chairman of the U.K. National Cancer Research Institute
(NCRI) Hematological Oncology Study Group and the Chief Investigator of
study BIOV-121. These new data included:
-- The demographics of the study population, who were considered
unsuitable for intensive chemotherapy, were: median age 71 years;
29% had adverse cytogenetics (no patients had favorable
cytogenetics); 24% secondary AML; 74% of patients had greater than
or equal to 1 co-morbidities
-- The overall response rate achieved with clofarabine (30mg/m2) was
substantially higher than expected at 48% for the full analysis set
(FAS) and 55% for the per protocol set (PPS). The complete response
rate (CR + CRi) was 44% for the FAS and 50% for the PPS.
-- Complete response rates for the poor prognosis groups were: adverse
cytogenetics 47%; secondary AML 31%; patients greater than or equal
to 70 years 49%.
-- A pooled analysis was performed on study BIOV-121 and the NCRI AML
14 trial in the elderly AML population unsuitable for intensive
chemotherapy. The median overall survival for all patients was 152
days for clofarabine, 105 days for LDAC, and 69 days for HU.
The overall survival at 12 months for the poor prognosis groups
were:
-- Adverse Cytogenetics - clofarabine 28% compared with 0% for LDAC
and 5% for HU;
-- Secondary AML - clofarabine 50% compared with 18% for LDAC
and 0% for HU;
-- Wheatley Poor Risk Index - clofarabine 36% compared with
16% for LDAC and 4% for HU.
-- In the pooled analysis the early death rate (within 30 days) was
21% for clofarabine and 26% for both LDAC and HU. Of the 14
patients with early deaths on clofarabine, 3 had neutropenic
sepsis, 3 had infection, 3 had infection and acute renal failure,
2 had hemorrhage, and 1 died with disease progression.
-- The most frequent treatment-related adverse events were nausea,
vomiting, diarrhoea, and constipation which occurred in 42 (64%),
31 (47%), 26 (39%) and 10 (15%) patients respectively.
Treatment-related thrombocytopenia, anemia and neutropenia occurred
in 29 (44%), 18 (27%) and 19 (29%) patients respectively.
-- In study BIOV-121 the median time to ANC recovery to greater than
1.0 x 10(9)/L and platelet recovery to greater than 100 x 10(9)/L
was 24 and 38 days respectively.
“Clearly, clofarabine is active as a single
agent in adult patients with acute myeloid leukemia and who are not
candidates for intensive therapy, and has a favorable risk/benefit
profile,” said Professor Alan Burnett, M.D. “As
with all active anticancer agents, the patients need to be carefully
monitored, however clofarabine achieves a high response rate and
improved survival in these elderly patients.
”These data from the pivotal study BIOV-121
and the pooled analysis from other studies will form the basis of
Bioenvision’s filing with the European
Medicines Agency (EMeA) for the use of clofarabine in adult AML patients
over 65 years and who are considered unsuitable for intensive therapy.
The data from this press release and the presentations at ASH relating
to BIOV-121 reflect important results from the full data set which will
form the basis for the European filing.
Investor Conference Call and Meeting at ASH
In conjunction with the release of the data at ASH, Bioenvision will
host an investor meeting, conference call and webcast on Monday,
December 11, 2006 at 7:15 p.m. ET.
Conference Call Information:
Date: 12/11/06
Time: 7:15 p.m. ET
Toll free: 866-585-6398
International: 416-849-9626
Web cast: www.bioenvision.com
A replay of the call and web cast will be available for 14 days.
Replay number toll free: 866-245-6755
Replay number international: 416-915-1035
Replay passcode: 780114
Web cast replay: www.bioenvision.com
About Evoltra®
(clofarabine)
The European Marketing Authorization for Evoltra®
(clofarabine) is for "the treatment of acute lymphoblastic leukemia
(ALL) in pediatric patients who have relapsed or are refractory to at
least two prior regimens and where there is no other treatment option
anticipated to result in a durable response. Safety and efficacy have
been assessed in studies of patients less than or equal to 21 years old
at initial diagnosis."
Clofarabine is in clinical development for the treatment of other
hematological cancers and solid tumors. Bioenvision has conducted
nonclinical studies of Evoltra®
for the treatment of psoriasis and is planning further worldwide
development of Evoltra®
in autoimmune diseases.
Evoltra® (clofarabine)
is a next generation purine nucleoside analog. Bioenvision holds an
exclusive worldwide license (excluding U.S. and Canada) for the cancer
applications of clofarabine and an exclusive worldwide license for all
non-cancer indications. Bioenvision granted an exclusive sublicense to
Genzyme Corporation to develop and commercialize clofarabine for certain
cancer indications in the U.S. and Canada, which Genzyme markets under
the name of Clolar®.
Bioenvision originally obtained clofarabine development and
commercialization rights under patents held by Southern Research
Institute.
Clofarabine has been granted orphan drug designation for the treatment
of both ALL and AML in the U.S. and Europe. In Europe, the designation
provides marketing exclusivity for 10 years following Marketing
Authorization.
About Bioenvision
Bioenvision's primary focus is the acquisition, development,
distribution and marketing of compounds and technologies for the
treatment of cancer. Bioenvision has a broad pipeline of products for
the treatment of cancer, including: Evoltra®,
Modrenal® (for which
Bioenvision has obtained regulatory approval for marketing in the United
Kingdom for the treatment of post-menopausal breast cancer following
relapse to initial hormone therapy), and other products. Bioenvision is
also developing anti-infective technologies, including the OLIGON®
technology; an advanced biomaterial that has been incorporated into
various FDA approved medical devices and Suvus®,
an antimicrobial agent currently in clinical development for refractory
chronic hepatitis C infection. For more information on Bioenvision
please visit our Web site at www.bioenvision.com.
Certain statements contained herein are "forward-looking" statements
(as such term is defined in the Private Securities Litigation Reform Act
of 1995). Because these statements include risks and uncertainties,
actual results may differ materially from those expressed or implied by
such forward-looking statements. Specifically, factors that could cause
actual results to differ materially from those expressed or implied by
such forward-looking statements include, but are not limited to: risks
associated with preclinical and clinical developments in the
biopharmaceutical industry in general and in Bioenvision's compounds
under development in particular; the potential failure of Bioenvision's
compounds under development to prove safe and effective for treatment of
disease; uncertainties inherent in the early stage of Bioenvision's
compounds under development; failure to successfully implement or
complete clinical trials; failure to receive marketing clearance from
regulatory agencies for our compounds under development; acquisitions,
divestitures, mergers, licenses or strategic initiatives that change
Bioenvision's business, structure or projections; the development of
competing products; uncertainties related to Bioenvision's dependence on
third parties and partners; and those risks described in Bioenvision's
filings with the SEC. Bioenvision disclaims any obligation to update
these forward-looking statements.