Viracta and Salubris Announce Equity Financing and Partnership to Bring Novel Treatment for Viral-Associated Cancers to China

On December 3, 2018 Shenzhen Salubris Pharmaceuticals Co. Ltd. (Salubris, SZSE: 002294) and Viracta Therapeutics, Inc. reported the initial closing of a financing, with Salubris committing $10 million as the lead investor (Press release, Viracta Therapeutics, DEC 3, 2018, View Source [SID1234534657]). New investor Virtus Inspire Ventures, as well as Viracta’s existing investors, NantKwest, Inc., Latterell Venture Partners and Forward Ventures, all participated in the financing. In addition to the financing, Salubris and Viracta have entered into an exclusive Collaboration and License Agreement to bring Viracta’s novel treatment approach for virus-associated malignancies to China.

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Viracta is advancing its innovative approach for viral-associated cancers in a Phase 1b/2 clinical trial for Epstein Barr Virus (EBV)-associated lymphomas in the US and Brazil. The approach is the first targeted, orally administered therapy for EBV-associated malignancies. It incorporates Viracta’s proprietary drug candidate, nanatinostat (VRx-3996) in combination with an antiviral as a targeted treatment to eradicate a range of viral-associated cancers. Viracta plans to initiate a clinical trial for the treatment of EBV-associated solid tumors in the coming year.

EBV-associated nasopharyngeal carcinoma is endemic in Southern China. EBV is also highly associated with the incidence and progression of other solid tumors, including gastric carcinoma, as well as NK/T cell lymphomas found throughout China. Salubris CEO, Kevin Ye highlighted, "EBV-driven cancers disproportionately impact patients in China. We look forward to partnering with Viracta to develop this new treatment option in China. The approach holds the potential to provide a valuable new treatment option for these patients, who currently still face considerable morbidity and mortality."

"We are committed to bringing our treatment approach to cancer patients around the world," commented Viracta CEO, Ivor Royston, MD. "We look forward to developing nanatinostat in collaboration with Salubris to address these major healthcare needs in China."

Under the terms of the license agreement, in addition to the equity investment made by Salubris, Viracta is eligible to receive up to $58 million in pre-commercial milestones as well as significant sales level-triggered commercial milestones and tiered royalties on sales. The Companies will collaborate for clinical development of the treatment approach for viral-associated cancers with Salubris taking on responsibility for development within the Peoples Republic of China (excluding Hong Kong, Macau and Taiwan). Viracta retains development responsibility as well as commercial rights outside of China.

BerGenBio reports 43% response rate with bemcentinib monotherapy in AXL positive R/R AML/MDS patients at ASH

On December 3, 2018 BerGenBio ASA (OSE: BGBIO), a clinical-stage biopharmaceutical company focused on developing a pipeline of first-in-class AXL kinase inhibitors to treat multiple cancer indications, reported that it presented a comprehensive analysis of monotherapy data from its BGBC003 clinical trial (NCT02488408) with selective AXL inhibitor bemcentinib in patients with relapsed/refractory Acute Myeloid Leukaemia (AML) or high-risk Myelodysplastic Syndrome (MDS) (Press release, BerGenBio, DEC 3, 2018, View Source [SID1234531807]).

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In a poster presentation at the 60th American Society of Hematology (ASH) (Free ASH Whitepaper) Annual Meeting (ASH) (Free ASH Whitepaper) in San Diego entitled: "Comprehensive Analysis of the Dose Escalation, Expansion and Correlates in the Ph I/II Trial BGBC003 with the Selective Oral AXL Inhibitor Bemcentinib (BGB324) in Relapsed/Refractory AML and MDS", Professor Sonja Loges, attending physician at the University Hospital in Hamburg-Eppendorf and lead investigator of the BGBC003 trial, detailed the following:

14 of 26 (54%) of patients found to be AXL positive (denoted by low serum AXL, sAXL, levels at start of treatment).
Response rate of 43% CR/Cri/CRp to bemcentinib monotherapy in AXL positive patients and 22% overall.
Mild and manageable side effect profile with a low incidence of Grade 3/4 events and low incidence of haematological toxicity.
Furthermore, the Company announces that enrolment is complete into the phase II combination cohort of bemcentinib and decitabine in first line AML. Analysis of the activity of the combination will be submitted for presentation at a future medical congress.

Richard Godfrey, Chief Executive Officer of BerGenBio, commented: "I am very encouraged by the data presented today, we are consistently seeing AXL positive patients report a superior response to bemcentinib therapy alone or in combination with standard of care therapy. The value of our biomarkers to identify patients most likely to benefit from bemcentinib is tremendous. Based on our clinical data, more than 50% of AML/MDS patients are AXL positive, of which 43% reported complete response within the first few weeks of starting bemcentinib monotherapy treatment. Bemcentinib is very well tolerated by patients as a single agent and in combination with other drugs, which is an important feature supporting bemcentinib’s broad utility. We are making excellent progress recruiting the chemotherapy combination arms of this study and look forward to reporting the data from these patients in the coming months".

END

About AML
AML is the most common form of acute leukaemia in adults where malignant AML blasts interfere with the normal functioning of the bone marrow leading to a multitude of complications like anaemia, infections and bleeding. AML is diagnosed in over 20,000 patients in the US annually and is rapidly lethal if left untreated. Successful treatment typically requires intensive therapy or bone marrow transplantation, and relapse and resistance are common. Consequently, there is an urgent need for effective novel therapies in relapsed/refractory patients, particularly those that are ineligible for intensive therapy or bone marrow transplant.

About the BGBC003 trial
The BGBC003 trial is a phase Ib/II multi-centre open label study of bemcentinib as a single agent in patients with AML or high risk MDS or in a combination with cytarabine and decitabine in AML patients. Up to 75 patients will be enrolled at centres in the US, Norway, Germany and Italy.

For more information please access trial NCT02488408 at www.clinicaltrials.gov.

About the 60th ASH (Free ASH Whitepaper) Annual Meeting in San Diego, California
The 60th American Society of Haematologist Annual Meeting and Exposition is the most comprehensive haematology conference worldwide and attracts more than 25,000 haematology professionals from every subspecialty.

Merck to Present at the Citi 2018 Global Healthcare Conference

On December 3, 2018 Merck (NYSE: MRK), known as MSD outside the United States and Canada, reported that Robert M. Davis, chief financial offer and executive vice president, Merck Global Services, is scheduled to present at Citi’s 2018 Global Healthcare Conference in New York on Dec. 5, 2018 at 8:45 a.m. EST (Press release, Merck & Co, DEC 3, 2018, View Source [SID1234531824]).

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Investors, analysts, members of the media and the general public are invited to listen to a live audio webcast of the presentation at View Source

Genprex to Present at the 11th Annual LD Micro Main Event

On December 3, 2018 Genprex, Inc. (NASDAQ: GNPX), a clinical-stage gene therapy company developing a new approach to treating cancer based upon a novel proprietary technology platform, reported that its Chairman and Chief Executive Officer, Rodney Varner, will present at the 11th annual LD Micro Main Event at the Luxe Sunset Boulevard Hotel in Los Angeles, CA (Press release, Genprex, DEC 3, 2018, View Source [SID1234531841]).

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Genprex is scheduled to present on Wed., Dec. 5, 2018, at 10:30 a.m. PST. Genprex management will also attend one-on-one meetings with institutional investors throughout the day.

The LD Micro Main Event is the largest independent conference for small/micro-cap companies and will feature 250 companies presenting to an audience of over 1,200 attendees.

Generon Presented Pre-Clinical Immunotherapy Results With CD3-Activating Bi-Specific Antibody Targeting CD19 on B Cells in Mono- and Bi-Valent Format

On December 3, 2018 Shanghai, Generon BioMed Holding Ltd (Generon), reported at the American Society of Hematology (ASH) (Free ASH Whitepaper) Annual Meeting the pre-clinical study results of two novel immunotherapies, A-319 (mono-valent) and A-329 (bi-valent), two CD19×CD3 bi-specific antibodies designed using Generon’s ITab platform (Press release, Generon (Shanghai), DEC 3, 2018, View Source [SID1234531890]). A series of studies were conducted to evaluate the bioactivities of A-319 and A-329 in vitro and in vivo. The in vitro data showed that the mono-valent and bi-valent CD19 binding had little effect on the CD3-associated activities including CD3 antigen binding affinity, T cell binding, and T cell activation. In contrast, the bi-valent binding format of A-329 showed better potency compared to the mono-valent format of A-319 in CD19 binding (KD 0.89 nM and 19.4 nM respectively) and in vitro human B cell killing (EC50 0.2 pM and 3.4 pM, respectively). Both A-319 and A-329 were capable of mediating tumor cell lysis with EC50 at 0.03~4.0 pM. A-329 demonstrated a greater killing activity on B cell lines with a low expression of CD19 antigen. In addition, The CD19 bi-valent format of A-329 revealed more B cell killing in monkeys. No significant differences of cytokine induction or liver injuries between A-319 and A-329 were observed. In human PBMC engrafted mouse models, in vivo efficacies of both formats on inhibiting tumor growth or improving animal survival rate were also confirmed. These results demonstrated that both A-319 and A-329 may benefit patients with B cell malignancies with less frequent dosing and lower levels of cytokine inductions than comparator therapies. A-329 especially has the potential to eliminate low CD19 expressing tumor stem cells.

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Dr. David Lacey, chairman of Generon’s scientific advisory board, commented, "The prosecution of A-319 and A-329 ITabs targeting underscores the broadening of Generon’s portfolio into the immune-oncology space. The inherent flexibility of the ITab design and the competitive attributes of its manufacture make this bi-specific platform particularly attractive for CD19 as well as future targets."

Dr. Xiao Qiang Yan, CEO and CSO of Generon, commented, "Targeting CD19 to treat patients with B cell malignancies remains a substantial unmet medical need. Generon has been focusing on developing CD3-activating bi-specific ITabs with the goal to serve patients better through more convenient dosing, improved efficacy and reduced side-effects. The preclinical data suggest that A-319 and A-329 may have unique advantages over other technologies or therapies targeting CD19".

About A-319 and A-329

A-319 and A-329 are T cell activating bi-specific antibodies (BsAb) designed to target CD19 and CD3 (anti-CD19, anti-CD3) and are under development for the treatment of patients with B cell malignancies including B cell leukemia and B cell lymphoma. Both A-319 and A-329 activate T lymphocytes in a patient to kill CD19 expressing malignant B-cells, and A-329 may also activate T lymphocytes in a patient to kill low CD19 expressing malignant B cells. A-319 was recently approved by SFDA to initiate a phase I study in patients with B cell malignancies in China.