On July 24, 2018 Aptose Biosciences Inc. (NASDAQ:APTO) (TSX:APS), a clinical-stage company developing highly differentiated therapeutics targeting the underlying mechanisms of cancer, reported that it will release its financial results for the quarter ended June 30, 2018 on Tuesday, August 7, 2018 at 5:00 pm Eastern time (Press release, Aptose Biosciences, JUL 24, 2018, View Source;p=RssLanding&cat=news&id=2359587 [SID1234527824]).

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Conference Call & Webcast:
Tuesday, August 7, 2018 @ 5:00 pm Eastern time
Toll-Free: (844) 882-7834
International: (574) 990-9707
Passcode: 2693419
Webcast: View Source

Replays available through August 14, 2018
Toll-Free: (855) 859-2056
Replay Passcode: 2693419
The live conference call can also be accessed through a link on the Investor Relations section of Aptose’s website at ir.aptose.com. Please log onto the webcast at least 10 minutes prior to the start of the call to ensure time for any software downloads that may be required. An archived version of the webcast along with a transcript will be available on the company’s website for 30 days.

The press release, the financial statements and the management’s discussion and analysis for the quarter ended June 30, 2018 will be available on SEDAR at www.sedar.com and EDGAR at www.sec.gov/edgar.shtml

On July 24, 2018 A-Alpha Bio reported that it has been awarded a National Science Foundation Phase I Small Business Innovation Research (SBIR) grant for $225,000 to develop AlphaSeq: a cell-based platform that will accelerate cancer drug development by enabling high-throughput and quantitative characterization of protein-protein interactions (Press release, A-Alpha Bio, JUL 24, 2018, View Source [SID1234636894]).

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Proteins bind to one another, like Lego pieces, to form complex biological machines. In cancer cells, these machines are dysregulated, causing cell-survival and uncontrolled growth. Pharmaceutical companies are developing drugs that kill cancer cells by blocking key protein-protein interactions. However, blocking any of the millions of protein-protein interactions that occur in healthy cells could cause serious side-effects, making specificity a major concern.

"A-Alpha Bio’s AlphaSeq technology is a game-changer for preclinical drug screening," said Randolph Lopez, CTO and Co-founder of A-Alpha Bio. "It lets us measure the effect of a drug on thousands of protein-protein interactions simultaneously, instead of having to measure each one individually. Pharmaceutical companies will not have to limit their preclinical testing to a small number of likely off-target effects. With AlphaSeq, they can avoid costly and potentially life-threatening surprises during clinical trials by screening their drugs against whole protein networks"

Protein interactions are already widely recognized as being critically important for the development of many different types of drugs. AlphaSeq provides a unique advantage over existing approaches by combining high accuracy and throughput, which is enabled by advances in the fields of synthetic biology and DNA sequencing. This SBIR grant is aimed at expanding the capabilities of AlphaSeq for screening interactions with challenging proteins and insoluble small molecule drugs. Once completed, A-Alpha Bio will be eligible to apply for a Phase II grant (up to $750,000) for pilot testing and scale-up.

On July 24, 2018 BeiGene, Ltd. (NASDAQ:BGNE), a commercial-stage biopharmaceutical company focused on developing and commercializing innovative molecularly-targeted and immuno-oncology drugs for the treatment of cancer, reported that the first patient was dosed in a global Phase 3 clinical trial of pamiparib, an investigational PARP inhibitor, as maintenance therapy in patients with inoperable locally advanced or metastatic gastric cancer who responded to platinum-based first-line chemotherapy (Press release, BeiGene, JUL 24, 2018, View Source;p=RssLanding&cat=news&id=2359579 [SID1234527826]).

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"We are pleased to announce the initiation of the first global Phase 3 trial of pamiparib, an important compound in our clinical pipeline. With our recently announced Phase 3 clinical trial of pamiparib in China for patients with platinum-sensitive recurrent ovarian cancer and now with this global Phase 3 trial in gastric cancer, we are striving to maximize opportunities for patients with a broad range of cancer diagnoses to be treated with and potentially benefit from pamiparib," commented John V. Oyler, Founder, Chief Executive Officer, and Chairman of BeiGene.

"Our focus at BeiGene is on developing treatments for patients who often have limited options. We are excited about this opportunity to evaluate our PARP inhibitor as maintenance therapy for patients with platinum-sensitive gastric cancer, especially considering more than 50 percent of these patients worldwide live in Eastern Asia, mainly China1," commented Amy Peterson, M.D., Chief Medical Officer for Immuno-Oncology at BeiGene.

The global Phase 3, randomized, double-blind, placebo-controlled trial in China, the U.S., Europe, Japan, Australia, and Singapore, is designed to compare the efficacy and safety of pamiparib to placebo as maintenance therapy in approximately 540 patients with advanced gastric cancer who have responded to first-line platinum-based chemotherapy. The primary endpoint of the trial is progression-free survival (PFS) by blinded independent review committee assessment. Overall survival (OS) is a key secondary endpoint as are progression after the next line of therapy (PFS2) and safety and tolerability.

"Inoperable, locally advanced and metastatic gastric cancer has limited treatment options. While first-line platinum-based therapy can result in initial responses, platinum-based chemotherapies are associated with significant toxicities. We are currently studying pamiparib, a PARP inhibitor, as a maintenance therapy to understand if a response to chemotherapy can be maintained without the associated toxicities," said Johanna Bendell, M.D., Chief Development Officer at Sarah Cannon, Nashville, Tenn., and co-chair of the steering committee for this trial.

About Pamiparib
Pamiparib (BGB-290) is an investigational inhibitor of PARP1 and PARP2 which has demonstrated pharmacological properties such as brain penetration and PARP-DNA complex trapping in preclinical models. Pamiparib is currently in global clinical development as a monotherapy and in combination with other agents for a variety of solid tumor malignancies

On July 24, 2018 Sutro Biopharma, Inc., reported that it has signed a collaboration and licensing agreement with Merck, known as MSD outside the United States and Canada, to discover and develop novel immune-modulating therapies for cancer and autoimmune disorders (Press release, Sutro Biopharma, JUL 24, 2018, View Source [SID1234529410]).

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The research and development activities will leverage Sutro’s proprietary cell-free protein synthesis andsite-specific conjugation platforms, which facilitate precision design and rapid empirical optimization of protein conjugates, to discover and develop best-in-class immune-modulating cytokine derivativesfor both oncology and autoimmune indications.

Under the agreement, Sutro will be primarily responsible for preclinical research and Merck will gain exclusive worldwide rights to therapeutic candidates derived from the collaboration.

Sutro will receive an upfront payment of $60 million and is eligible for milestone payments totaling up to $1.6 billion associated with the development and sale of all therapeutic candidates and all possible indicationsidentified under the collaboration, as well as tiered royalties on the sale of products.

"There’s an urgent need for novel, targeted and well-tolerated therapies with improved therapeutic profiles for cancer and autoimmune disease," Sutro CEO Bill Newell said. Dr. Joe Miletich, Senior Vice President, Discovery, Preclinical and Early Development, Merck Research Laboratories, said: "Sutro has an impressive suite of technologies that make possible the discovery, characterization and manufacture of novel therapeutic proteins in a timely manner. We look forward to collaborating with Sutro to further expand our pipeline of promising candidates targeting oncology and autoimmune diseases."

On July 24, 2018 BioXcel Therapeutics, Inc. ("BTI") (Nasdaq: BTAI), is a clinical stage biopharmaceutical development company utilizing proprietary artificial intelligence approaches to identify the next wave of medicines across neuroscience and immuno-oncology, reported that dipeptidyl peptidase (DPP) 8/9 inhibition, the primary mechanism of action of its lead immuno-oncology candidate, BXCL701, was highlighted in an article in the July 2018 edition of the peer-reviewed journal Nature Medicine (Press release, BioXcel Therapeutics, JUL 24, 2018, View Source [SID1234527859]).

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BXCL701 is a potential first-in-class, highly potent oral small molecule immuno-modulator that has demonstrated single agent activity in melanoma, with an established safety profile from 700 healthy subjects and cancer patients. It is designed to stimulate both the innate and acquired immune systems by inhibiting DPP8/9 and blocking immune evasion by inhibiting Fibroblast Activation Protein (FAP).

The paper titled "DPP8/DPP9 inhibitor-induced pyroptosis for treatment of acute myeloid leukemia" by Darren C. Johnson, et al., concluded that activation of caspase recruitment domain-containing protein 8 (CARD8) acts as an inflammasome sensor to activate caspase-1 and mediates DPP8/9 inhibitor-induced cell death in myeloid cells(1). This therapeutic strategy serves as a potential pathway for direct cytotoxicity of acute myeloid leukemia (AML) cells and indirect response to solid tumors. Multiple prior studies have established DPP8/9 as a novel immune checkpoint that controls the activation of the innate immune system(2),(3)

"BXCL701 is novel in its ability to stimulate both the innate and acquired immune systems by inhibiting DPP8/9 and blocking immune evasion by inhibiting FAP," said Vimal Mehta, PhD, Chief Executive Officer of BTI. "This publication highlights one component of BXCL701’s dual mechanism of action, providing valuable insights on the effects of DPP8/9 inhibition. BXCL701 differentiates itself by activating the innate immune system and stimulating neutrophils, natural killer cells and effector T cells. The paper provides further mechanistic understanding of DPP8/9 inhibition and validates its importance as a promising therapeutic approach, not only for solid tumors but for hematologic malignancies as well."

BTI expects to initiate Phase 2 proof of concept studies evaluating BXCL701 in pancreatic cancer and tNEPC later this year. BTI is also evaluating BXCL701’s potential in additional indications, both as a monotherapy and in combination with other immuno-oncology agents and partnering strategies.

Vincent J. O’Neill, MD, Chief Medical Officer of BTI added, "BXCL701 has generated compelling preclinical data in pancreatic cancer and a variety of other tumor models. Particularly exciting is its ability to block immune evasion and aid in the formation of memory T-cells, which may support long-term immunity in certain types of cancer as presented by BTI at ASCO (Free ASCO Whitepaper) 2018(4)."

This study in AML led by Dr. Bachovchin’s team at the Memorial Sloan Kettering Cancer Center and the Weil Cornell Graduate School of Medical Sciences, demonstrates that the therapeutic potential of a DPP8/9 inhibitor such as BXCL701 can extend beyond solid tumors into hematologic malignancies.

Dr O’Neill concluded, "We look forward to further evaluating BXCL701 in our lead indications, and potentially expanding its application to other cancer types."

(1) Johnson, DC, et al. DPP8/DPP9 inhibitor-induced pyroptosis for treatment of acute myeloid leukemia." Nat Med (2018), PMID: 29967349; DOI:10.1038/s41591-018-0082-y

(2) Okondo, Marian C., et al. "DPP8 and DPP9 inhibition induces pro-caspase-1-dependent monocyte and macrophage pyroptosis." Nat Chem Biol 13.1 (2017): 46-53. PMID: 27820798; DOI:10.1038/nchembio.2229

(3) Okondo, Marian C., et al. "Inhibition of Dpp8/9 activates the Nlrp1b inflammasome." Cell Chem Biol 25.3 (2018): 262-267. PMID: 29396289; DOI:10.1016/j.chembiol.2017.12.013

(4) Rastelli et al., Presented at ASCO (Free ASCO Whitepaper) 2018, Illinois, Abstract #3085