Sunesis Pharmaceuticals Announces Presentation of Positive Results from MD Anderson Sponsored Trial in Frontline Elderly AML and MDS at the EHA Annual Meeting
“Older patients diagnosed with AML and MDS have limited treatment options and exceedingly poor outcomes,” said Naval Daver, M.D., Assistant Professor,
To date, 63 patients (56 AML, 7 high-risk MDS) with a median age of 69 years (range 60-78) have been enrolled in the trial. All 63 patients have completed at least 2 treatment rounds, rendering them evaluable for response; with a 75% overall response rate, 49% (31 patients) achieved complete remission (CR), 17% (11 patients) achieved CR with incomplete platelet recovery (CRp), and 8% (5 patients) achieved CR with incomplete peripheral blood count recovery (CRi). The therapy was well-tolerated, with the main therapy related grade 3 or higher toxicities being mucositis in 11 (17%) patients.
Initially for the first 22 patients in the study, the selected induction dose of vosaroxin was 90 mg/m2. Thereafter to reduce the incidence of mucositis, the induction dose was reduced to 70 mg/m2 for the next 41 patients. The lower dose of vosaroxin in combination with decitabine was associated with reduced early mortality and an improved overall response rate and OS, as follows:
|Need >1 Cycle to
Sunesis also announced that follow-up data from the company’s VALOR trial was presented as an e-poster during the EHA meeting. The poster (abstract E930, Bella Center, E-Poster Screens), titled “Characterization of patients with relapsed or refractory AML in continued follow-up after treatment with vosaroxin/cytarabine vs placebo/cytarabine in the VALOR trial,” shows that, as of
All but seven patients in this follow up underwent allogeneic hematopoietic stem cell transplant (HCT). Of note, the non-HCT survivors were all in the vosaroxin/cytarabine treatment arm (68-71 years old, 2 primary refractory and 5 early relapsed).
Mr. Swisher added: “We are encouraged by the long-term benefit seen in the VALOR follow-up and also the potential for vosaroxin and cytarabine to provide long-term benefit in older patients who need more options.”
About QINPREZO™ (vosaroxin)
QINPREZO™ (vosaroxin) is an anti-cancer quinolone derivative (AQD), a class of compounds that has not been used previously for the treatment of cancer. Preclinical data demonstrate that vosaroxin both intercalates DNA and inhibits topoisomerase II, resulting in replication-dependent, site-selective DNA damage, G2 arrest and apoptosis. Both the
The trademark name QINPREZO is conditionally accepted by the
Sunesis is a biopharmaceutical company focused on the development and commercialization of new oncology therapeutics for the potential treatment of solid and hematologic cancers. Sunesis has built a highly experienced cancer drug development organization committed to improving the lives of people with cancer and is currently pursuing regulatory approval in
For additional information on Sunesis, please visit http://www.sunesis.com.
SUNESIS and the logos are trademarks of
This press release contains forward-looking statements, including statements related to Sunesis' corporate objectives, including the anticipated progress and potential approval of vosaroxin by the EMA, and further clinical development of vosaroxin,. Words such as “believe,” “look forward,” "potential," "will" and similar expressions are intended to identify forward-looking statements. These forward-looking statements are based upon Sunesis' current expectations. Forward-looking statements involve risks and uncertainties. Sunesis' actual results and the timing of events could differ materially from those anticipated in such forward-looking statements as a result of these risks and uncertainties, which include, without limitation, the risk that Sunesis may not be able to receive regulatory approval of vosaroxin in the U.S. or Europe, that Sunesis' development activities for vosaroxin could be otherwise halted or significantly delayed for various reasons, the risk that Sunesis' clinical studies for vosaroxin or other product candidates, including its pipeline of kinase inhibitors, may not demonstrate safety or efficacy or lead to regulatory approval, the risk that data to date and trends may not be predictive of future data or results, risks related to the conduct of Sunesis' clinical trials, risks related to Sunesis' need for substantial additional funding to complete the development and commercialization of vosaroxin and other product candidates, and risks related to Sunesis' ability to raise the capital that it believes to be accessible and is required to fully finance the development and commercialization of vosaroxin and other product candidates. These and other risk factors are discussed under "Risk Factors" and elsewhere in Sunesis' Annual Report on Form 10-K for the year ended December 31, 2015, Sunesis’ Quarterly Report on Form 10-Q for the quarter ended March 31, 2016, when available, and Sunesis' other filings with the Securities and Exchange Commission. Sunesis expressly disclaims any obligation or undertaking to release publicly any updates or revisions to any forward-looking statements contained herein to reflect any change in Sunesis' expectations with regard thereto or any change in events, conditions or circumstances on which any such statements are based.
Investor and Media Inquiries:
David Pitts Argot Partners212-600-1902 Eric Bjerkholt Sunesis Pharmaceuticals Inc.650-266-3717