Results showed a significant reduction in
transfusion burden compared to placebo
Safety profile generally consistent with
previously reported data
Regulatory submissions planned in the United
States and Europe in the first half of 2019
Celgene Corporation (NASDAQ: CELG) and Acceleron Pharma Inc.
(NASDAQ: XLRN) today announced results from a phase III,
randomized, double-blind, multi-center clinical study (BELIEVE).
Luspatercept achieved a highly statistically significant
improvement in the primary endpoint of erythroid response, which
was defined as at least a 33 percent reduction from baseline in red
blood cell (RBC) transfusion burden with a reduction of at least 2
units during the protocol-defined period of 12 consecutive weeks,
from week 13 to week 24, compared to placebo.
BELIEVE evaluated the efficacy and safety of luspatercept plus
best supportive care versus placebo plus best supportive care in
adults with transfusion-dependent beta-thalassemia.
In addition to achieving the primary endpoint of the study,
luspatercept also met all key secondary endpoints of demonstrating
statistically significant improvements in RBC transfusion burden
from baseline of at least a 33 percent reduction during the period
from week 37 to week 48, at least a 50 percent reduction during the
period from week 13 to week 24, at least a 50 percent reduction
during the period from week 37 to week 48, and a mean change in
transfusion burden from week 13 to week 24.
Adverse events observed in the study were generally consistent
with previously reported data.
“For decades, the management of beta-thalassemia in adults has
been limited to transfusions and iron chelation. Reduction of
transfusion burden represents an important step forward for
patients with this rare and debilitating blood disease,” said Jay
Backstrom, M.D., Chief Medical Officer for Celgene. “We thank the
patients, as well as their families and physicians, for their
participation in the BELIEVE study.”
“The BELIEVE study marks the second positive phase III study for
luspatercept and underscores the potential of this erythroid
maturation agent to impact a range of diseases associated with
chronic anemia,” said Habib Dable, President and Chief Executive
Officer of Acceleron. “We continue to explore luspatercept across
our broader development programs, including non-transfusion
dependent beta-thalassemia in the ongoing BEYOND study.”
The companies also recently announced that luspatercept met the
primary and key secondary endpoints in the MEDALIST study, a phase
III, randomized, double-blind, multi-center clinical trial
evaluating the efficacy and safety of luspatercept versus placebo
in patients with IPSS-R very low, low or intermediate risk
myelodysplastic syndromes (MDS) with chronic anemia and refractory
to, intolerant of, or ineligible for treatment with an
erythropoietin-stimulating agent (ESA), ring sideroblast-positive
and require frequent RBC transfusions.
Data from BELIEVE and MEDALIST will be submitted to a future
medical meeting in 2018. The companies plan to submit regulatory
applications for luspatercept in the United States and Europe in
the first half of 2019.
Luspatercept is not approved for any indication in any
geography.
About Luspatercept
Luspatercept is a first-in-class erythroid maturation agent
(EMA) that is believed to regulate late-stage red blood cell
maturation. Acceleron and Celgene are jointly developing
luspatercept as part of a global collaboration. Phase III clinical
trials continue to evaluate the safety and efficacy of luspatercept
in patients with MDS (the MEDALIST trial) and in patients with
beta-thalassemia (the BELIEVE trial). A Phase III trial is being
planned in first-line, lower-risk, MDS patients (the COMMANDS
trial). The BEYOND Phase II trial in non-transfusion-dependent
beta-thalassemia and a Phase II trial in myelofibrosis are ongoing.
For more information, please visit www.clinicaltrials.gov.
About Celgene
Celgene Corporation, headquartered in Summit, New
Jersey, is an integrated global biopharmaceutical company engaged
primarily in the discovery, development and commercialization of
innovative therapies for the treatment of cancer and inflammatory
diseases through next-generation solutions in protein homeostasis,
immuno-oncology, epigenetics, immunology and neuro-inflammation.
For more information, please visit www.celgene.com. Follow
Celgene on Social
Media: @Celgene, Pinterest, LinkedIn, Facebook and YouTube.
About Acceleron
Acceleron is a Cambridge-based, clinical-stage biopharmaceutical
company dedicated to the discovery, development, and
commercialization of therapeutics to treat serious and rare
diseases. The Company's leadership in the understanding of TGF-beta
biology and protein engineering generates innovative compounds that
engage the body's ability to regulate cellular growth and
repair.
Acceleron focuses its research and development efforts in
hematologic, neuromuscular, and pulmonary diseases. In hematology,
the Company and its global collaboration partner, Celgene, are
developing luspatercept for the treatment of chronic anemia in
myelodysplastic syndromes, beta-thalassemia, and myelofibrosis.
Acceleron is also advancing its neuromuscular franchise with two
distinct Myostatin+ agents, ACE-083 and ACE-2494, and a pulmonary
program with sotatercept in pulmonary arterial hypertension.
For more information, please visit www.acceleronpharma.com.
Follow Acceleron on Social Media: @AcceleronPharma and
LinkedIn.
Forward-Looking Statements
This press release contains forward-looking statements within
the meaning of The Private Securities Litigation Reform Act of
1995. Such forward-looking statements include those regarding the
potential benefits of, and plans relating to the collaboration
between Acceleron and Celgene; the potential of luspatercept as a
therapeutic drug; and the benefit of each company’s strategic plans
and focus. The words “anticipate,” “believe,” “estimate,” “expect,”
“intend,” “may,” “plan,” “predict,” “project,” “would,” “could,”
“potential,” “possible,” “hope” and similar expressions are
intended to identify forward-looking statements, although not all
forward-looking statements contain these identifying words. Such
statements are subject to numerous important factors, risks and
uncertainties that may cause actual events or results to differ
materially from current expectations and beliefs. For example,
there can be no guarantee that luspatercept will be successfully
developed or complete necessary clinical phases. Forward-looking
statements in this press release could also be affected by risks
and uncertainties relating to a number of other important factors,
including: results of clinical trials, including subsequent
analysis of existing data and new data received from ongoing and
future studies; the content and timing of decisions made by the
U.S. FDA and other regulatory authorities, investigational review
boards at clinical trial sites and publication review bodies; the
ability to obtain and maintain requisite regulatory approvals and
to enroll patients in planned clinical trials; the ability to
obtain, maintain and enforce patent and other intellectual property
protection for luspatercept; the ability to maintain key
collaborations; and general economic and market conditions. These
and other risks are described in greater detail under the caption
"Risk Factors" included in each company’s public filings with the
Securities and Exchange Commission. Any forward-looking statements
contained in this press release speak only as of the date hereof,
and neither company has any obligation to update any
forward-looking statements, whether as a result of new information,
future events or otherwise, except as may be required by law.
Hyperlinks are provided as a convenience and for informational
purposes only. Neither Celgene nor Acceleron bears responsibility
for the security or content of external websites or websites
outside of their respective control.
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version on businesswire.com: https://www.businesswire.com/news/home/20180709005856/en/
Celgene
CorporationInvestors:+1-908-673-9628ir@celgene.comorMedia:+1-908-673-2275media@celgene.comorAcceleron
Pharma Inc.Todd James, IRC, (617) 649-9393Vice President,
Investor Relations and Corporate CommunicationsorCandice Ellis,
617-649-9226Manager, Investor Relations and Corporate
CommunicationsorMedia:Matt Fearer, 617-301-9557Director, Corporate
Communications
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