- Company to highlight approaches for studying rigosertib in multiple rare diseases associated with RAS gene at
upcoming scientific conference
- Collaboration with National Cancer Institute (NCI) for evaluation of rigosertib in pediatric rare
disease
- Onconova to host KOL breakfast symposium for investors on October 11th, 2017
NEWTOWN, Pa., July 25, 2017 (GLOBE NEWSWIRE) -- Onconova Therapeutics, Inc. (NASDAQ:ONTX), a Phase 3 stage biopharmaceutical
company focused on discovering and developing novel small molecule drug candidates to treat cancer, with a primary focus on
Myelodysplastic Syndromes (MDS), today announced the establishment of a collaborative, multi-institutional research and clinical
program to evaluate rigosertib in pediatric RASopathies, a group of rare syndromes, which, together, are among the most common
genetic conditions in the world, according to the RASopathies.Net. The program will generate supportive non-clinical data and obtain early
clinical experience in the pediatric setting with rigosertib, Onconova’s lead clinical candidate.
Rigosertib in currently being evaluated in a global Phase 3 trial (INSPIRE) for MDS patients after failure of therapy with
Hypomethylating Agents (HMAs). A Phase 2 trial of oral Rigosertib combined with Azacitidine is aimed at patients with MDS and
AML.
The RASopathies are developmental syndromes usually caused by mutations that alter the RAS subfamily and mitogen-activated
protein kinases that control signal transduction. Together, the RASopathies represent a group of neurodevelopmental syndromes
affecting more than 1 in 1000 individuals, according to RASopathies.Net.
Reflecting Onconova’s focus on MDS and Myeloproliferative Neoplasms (MPNs), the Company will initially prioritize Juvenile
Myelomonocytic Leukemia (JMML), a pediatric, typically germline, disease that shares characteristics of adult MDS and MPNs. JMML is
a well-described RASopathy affecting children, which is incurable without an allogenic hematopoietic stem cell transplant. In
addition, Onconova will collaborate with the National Cancer Institute on a broad clinical trial for pediatric patients with
RASopathies.
“We are advancing research into one of the most important pediatric genetic syndromes, as we work together with families,
clinicians and scientists to foster collaborative research efforts. Our program is based on mechanistic rationale, clinical
activity in adult marrow diseases and sound safety data. By leveraging our focus in MDS and MPNs, we expect to further advance
approaches to studying rigosertib in a variety of RAS associated diseases,” said Steven Fruchtman, M.D., Onconova’s Chief Medical
Officer.
Dr. Fruchtman will present findings highlighting approaches for studying rigosertib in RAS associated diseases on Sunday, July
30th, at the 5th International RASopathies Symposium, organized by RASopathies.Net and held at the
Renaissance Hotel in Orlando, Florida.
A copy of the presentation, “Strategies to RASopathies and JMML,” can be accessed by visiting “Scientific Presentations” in the Investors section of Onconova’s website.
Onconova is also hosting a Key Opinion Leader Breakfast Symposium for investors in New York City on Wednesday, October 11, 2017,
to further highlight RASopathies. Dr. Elliot Steigholtz from the University of California San Francisco, and Dr. Bruce Gelb from
Mount Sinai, along with Dr. Fruchtman, will present on novel approaches in this evolving area. The Company will disclose further
details regarding the Symposium in the coming months.
About Onconova Therapeutics, Inc.
Onconova Therapeutics, Inc. is a Phase 3-stage biopharmaceutical company focused on discovering and developing novel small
molecule drug candidates to treat cancer, with a primary focus on Myelodysplastic Syndromes (MDS). Rigosertib, Onconova's lead
candidate, is a proprietary Phase 3 small molecule agent, which the Company believes blocks cellular signaling by targeting RAS
effector pathways. Using a proprietary chemistry platform, Onconova has created a pipeline of targeted agents designed to
work against specific cellular pathways that are important in cancer cells, while causing minimal damage to normal cells. Onconova
has three product candidates in the clinical stage and several pre-clinical programs. Advanced clinical trials with the Company’s
lead compound, rigosertib, are aimed at what the Company believes are unmet medical needs of patients with MDS. For more
information, please visit http://www.onconova.com.
About IV Rigosertib
The intravenous form of rigosertib has been employed in Phase 1, 2, and 3 clinical trials involving more than 800 patients, and
is currently being evaluated in the randomized Phase 3 international INSPIRE trial for patients with higher-risk MDS, after failure
of hypomethylating agent, or HMA, therapy. This formulation is intended for patients with advanced disease, provides long duration
of exposure, and ensures dosing under a controlled setting.
About INSPIRE
The INternational Study of Phase III IV
RigosErtib, or INSPIRE, is based on guidance received from the U.S. Food and Drug Administration
and European Medicines Agency and derives from the findings of the ONTIME Phase 3 trial. INSPIRE is a multi-center,
randomized controlled study to assess the efficacy and safety of IV rigosertib in HR-MDS patients who had progressed on, failed to
respond to, or relapsed after previous treatment with an HMA within the first 9 months or nine cycles over the course of one year
after initiation of HMA treatment. This time frame optimizes the opportunity to respond to treatment with an HMA prior to
declaring treatment failure, as per NCCN Guidelines. The trial will enroll approximately 225 patients randomized at a 2:1
ratio into two treatment arms: IV rigosertib plus Best Supportive Care versus Physician's Choice plus Best Supportive Care.
The primary endpoint of INSPIRE is overall survival and an interim analysis is anticipated. Full details of the INSPIRE trial, such
as inclusion and exclusion criteria, as well as secondary endpoints, can be found on clinicaltrials.gov (NCT02562443).
About Oral Rigosertib
The oral form of rigosertib was developed to provide more convenient dosing for use where the duration of treatment may extend
to multiple years. This dosage form also supports many combination therapy modalities. To date, 368 patients have been treated with
the oral formulation of rigosertib. Initial studies with single-agent oral rigosertib were conducted in hematological
malignancies, lower-risk MDS, and solid tumors. Combination therapy of oral rigosertib with azacitidine and chemoradiotherapy has
also been explored. Currently, oral rigosertib is being developed as a combination therapy together with azacitidine for patients
with higher-risk MDS who require HMA therapy. A Phase 2 trial of the combination therapy has been fully enrolled and the
preliminary results were presented in 2016. This novel combination is the subject of an issued US patent with earliest expiration
in 2028.
Forward Looking Statements
Some of the statements in this release are forward-looking statements within the meaning of Section 27A of the Securities Act of
1933, as amended, Section 21E of the Securities Exchange Act of 1934, as amended, and the Private Securities Litigation Reform Act
of 1995, and involve risks and uncertainties. These statements relate to future events or Onconova Therapeutics, Inc.'s future
operations, clinical development of Onconova's product candidates and presentation of data with respect thereto, regulatory
approvals, expectations regarding the sufficiency of Onconova's cash and other resources to fund operating expenses and capital
expenditures, Onconova's anticipated milestones and future expectations and plans and prospects. Although Onconova believes that
the expectations reflected in such forward-looking statements are reasonable as of the date made, expectations may prove to have
been materially different from the results expressed or implied by such forward-looking statements. Onconova has attempted to
identify forward-looking statements by terminology including "believes," "estimates," "anticipates," "expects," "plans," "intends,"
"may," "could," "might," "will," "should," "approximately" or other words that convey uncertainty of future events or outcomes.
These statements are only predictions and involve known and unknown risks, uncertainties, and other factors, including Onconova's
ability to continue as a going concern, the need for additional financing and current plans and future needs to scale back
operations if adequate financing is not obtained, the success and timing of Onconova's clinical trials and regulatory approval of
protocols, and those discussed under the heading "Risk Factors" in Onconova's most recent Annual Report on Form 10-K and quarterly
reports on Form 10-Q.
Any forward-looking statements contained in this release speak only as of its date. Onconova undertakes no obligation to update
any forward-looking statements contained in this release to reflect events or circumstances occurring after its date or to reflect
the occurrence of unanticipated events.
General Contact http://www.onconova.com/contact/ Investor Relations Contact Lisa Sher, MBS Value Partners on behalf of Onconova Therapeutics Lisa.Sher@mbsvalue.com / (212) 750-5800