Seattle Genetics to Host Conference Call and Webcast Discussion of Second Quarter Financial Results on July 26, 2018

On June 28, 2018 Seattle Genetics, Inc. (Nasdaq: SGEN) reported that it will report its second quarter financial results on Thursday, July 26, 2018 after the close of financial markets (Press release, Seattle Genetics, JUN 28, 2018, View Source;p=RssLanding&cat=news&id=2356365 [SID1234527500]). Following the announcement, company management will host a conference call and webcast discussion of the results and provide a general corporate update. Access to the event can be obtained as follows:

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LIVE access on Thursday, July 26, 2018
1:30 p.m. Pacific Time / 4:30 p.m. Eastern Time

Telephone 877-260-1479 (domestic) or +1 334-323-0522 (international); conference ID 6908320
Webcast available at www.seattlegenetics.com in the Investors section
REPLAY access

Telephone replay will be available beginning at approximately 4:30 p.m. PT on Thursday, July 26, 2018 through 5:00 p.m. PT on Monday, July 30, 2018 by calling 888-203-1112 (domestic) or +1 719-457-0820 (international); conference ID 6908320
Webcast replay will be available on the Seattle Genetics website at www.seattlegenetics.com in the Investors section

CytRx Corporation Highlights Aldoxorubicin Included in New NantCell Inc. Triple Negative Breast Cancer Clinical Trial

On June 28, 2018 CytRx Corporation (NASDAQ: CYTR), a biopharmaceutical research and development company specializing in oncology, reported that aldoxorubicin licensee NantCell, Inc., a private subsidiary of NantWorks, LLC, has dosed the first patient in the Phase 1b portion of a Phase 1b/2 clinical trial for patients with triple negative breast cancer (TNBC) (Press release, CytRx, JUN 28, 2018, View Source [SID1234527501]). This is the third trial conducted by NantCell which will investigate aldoxorubicin combined with immunotherapy or high-affinity natural killer (haNK) cell therapy in certain high unmet need cancer indications.The first trial in pancreatic cancer patients commenced in January 2018and the second trial, for patients with advanced squamous cell carcinoma, commenced in February 2018.

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Eric Curtis, CytRx’s President and Chief Operating Officer stated, "The initiation of this third clinical trial speaks to NantCell’s commitment to investigating aldoxorubicin in combination with their proprietary haNK cell therapy and working to identify effective treatment alternatives for women challenged by TNBC, an aggressive, difficult to treat type of breast cancer."

The trial titled "QUILT-3.067 NANT Triple Negative Breast Cancer (TNBC) Vaccine: Molecularly Informed Integrated Immunotherapy in Subjects With TNBC Who Have Progressed on or After Standard-of-care Therapy," (NCT03387085) is a single-center, open-label, Phase 1b/2 clinical trial designed to evaluate the safety and efficacy of several combination therapies, including combinations with aldoxorubicin, in subjects with TNBC who have progressed on or after standard of care therapies. This trial is expected to enroll approximately 79 patients. The primary endpoint for the Phase 1b portion of the trial is safety and the primary endpoint for the Phase 2 portion of the trial is objective response rate (ORR) by RECIST.

About Triple Negative Breast Cancer

Triple-negative breast cancer (TNBC) is a particularly aggressive form of cancer whose cells do not have estrogen, progesterone, or receptors of the HER2 protein. According to the National Institutes of Health, it is estimated that between 10 and 20 percent of breast cancer patients are diagnosed with TNBC and approximately 170,000 cases of TNBC have been reported annually worldwide, with higher rates among women under 50 years old and women of African American or Hispanic background. The disease may also be associated with inherited mutations in the BRCA1 gene.

BIOATLA ANNOUNCES FIRST PATIENT TREATED IN PHASE1/2 BA3021-001 CLINICAL TRIAL FOR CAB-ROR2-ADC THERAPEUTIC

On June 28, 2018 BioAtla, LLC, a global biotechnology company focused on the development of Conditionally Active Biologic (CAB) protein therapeutics, reported the treatment of the first patient in its clinical trial BA3021-001 for BioAtla’s BA3021, a novel conditionally active ROR2-targeted antibody-drug conjugate (CAB-ROR2-ADC) (Press release, BioAtla, JUN 28, 2018, View Source [SID1234527502]). This is a multi-center, open-label, Phase 1/2 study designed to evaluate the safety, tolerability, pharmacokinetics, immunogenicity and antitumor activity of BA3021 in patients with advanced solid tumors including non-small cell lung cancer (NSCLC), triple negative breast cancer and soft tissue sarcoma. CAB-ROR2-ADC is BioAtla’s second CAB investigational product to enter clinical trials following BA3011, CAB-AXL-ADC in February of this year.

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The first patient in the BA3021 clinical study was enrolled and dosed at Sarah Cannon Research Institute at Tennessee Oncology in Nashville, TN under the direction of the principal investigator, Howard A. "Skip" Burris III, MD. Dr. Burris, a recognized leader in clinical oncology, serves as chief medical officer and president of clinical operations at Sarah Cannon. "Innovative advancements in the treatment of cancer include tumor specific activation of therapy and promoting appropriate immune response. Providing access to cutting-edge therapies in clinical trials, such as the BA3021 clinical study, further supports our mission to advance care for cancer patients," said Dr. Burris.

The ROR2 transmembrane protein tyrosine kinase is an onco-fetal protein that acts as a non-canonical Wnt 5A receptor. ROR2 is found to be highly expressed during embryonic development and in several important cancer types, and the level of expression in tumors is tightly correlated with patient prognosis. Recently, ROR2 and its ligand Wnt 5A have been shown to be induced in cancers that are resistant to treatment with immune checkpoint inhibitors such as anti-PD-1 antibody immune therapy suggesting a mechanistic role of this receptor-ligand axis in resistance to standard cancer treatments resulting in relapsing, minimal residual disease. However, low to moderate levels of expression of ROR2 in multiple normal adult tissues are predicted based on RNA expression, histological analysis and functional studies. To minimize the risk of potential disruption of normal function of ROR2 receptors on normal cells, BioAtla applies its proprietary CAB technology to develop its CAB antibody-drug conjugate (ADC) targeting ROR2 with the intent to activate binding to the ROR2 receptor only in the tumor microenvironment and deliver the toxic payload to the cancerous cells. The CAB-ROR2-ADC BA3021 is designed to maximize efficacy on ROR2 expressing tumors while minimizing toxicity, leading to better clinical outcomes.

About Conditionally Active Biologics (CABs)

Conditionally Active Biologic proteins are generated using BioAtla’s proprietary protein discovery, evolution and expression technologies. These proteins can be monoclonal antibodies, enzymes and other proteins designed with functions dependent on changes in microphysiological conditions (e.g., pH level, oxidation, temperature, pressure, presence of certain ions, hydrophobicity and combinations thereof) both outside and inside cells.

Studies have shown that cancerous tumors create highly specific conditions at their site that are not present in normal tissue. These cancerous microenvironments are primarily a result of the well understood unique glycolytic metabolism associated with cancer cells, referred to as the Warburg Effect. CAB proteins are designed to deliver their therapeutic payload and/or recruit the immune response in specific and selected locations and conditions within the body and to be active only in the presence of a particular cellular microenvironment. In addition, the activation is designed to be reversible to repeatedly switch ‘on and off’ should the CAB move from a diseased to a normal cellular microenvironment and vice versa. CABs can be developed in a variety of formats including antibodies, antibody drug conjugates (ADCs), bi-specifics, chimeric antigen receptor T-cells (CAR-Ts) and combination therapies.

Medicenna Announces March 31, 2018 Year-End Results and Provides Update on Clinical Program

On June 27, 2018 Medicenna Therapeutics Corp. ("Medicenna" or the "Company") (TSX: MDNA, OTCQX: MDNAF), a clinical stage immunotherapy company, reported its operational and financial results for the year ended March 31, 2018 (Press release, Medicenna Therapeutics, JUN 27, 2018, View Source [SID1234527482]).

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"We are quite pleased with the progress we have made this year," said Fahar Merchant, PhD, Chairman, President and CEO. "We are past the mid-stage of the Phase 2b clinical trial of MDNA55 in patients with recurrent glioblastoma (rGBM), a uniformly fatal form of brain cancer, and have seen early signs of tumor response and impressive overall survival rate at 6 months (OS-6) of 90 percent following a single treatment with low doses of MDNA55. With exceptional drug distribution and a desirable safety profile to date, we plan to treat the remaining patients before the end of 2018 at the higher maximum tolerated dose with an option for repeat treatment in patients showing benefit. We have also accelerated the development of MDNA109, the only CD122 biased high-affinity IL-2 in development, designed to selectively stimulate cancer-fighting T and natural killer (NK) cells and expect to have a long-acting lead candidate in the next six months. Finally, we graduated to the main board of the TSX and listed on the OTCQX. We have laid the groundwork for success in fiscal 2018 and look forward to achieving key milestones in fiscal 2019."

Program updates for the year ended March 31, 2018 are as follows:

MDNA55

On October 10, 2017, results from the Cancer Prevention and Research Institute of Texas (CPRIT) funded on-going Phase 2b rGBM study were presented at the 2017 Congress of Neurological Surgeons (Boston, MA) demonstrating successful delivery in brain cancer patients and a reassuring safety profile for MDNA55 as well as a substantially higher proportion of the target tissue being covered than in similar previously conducted trials. In some cases, close to 100 percent of the tumor and the 1cm margin around it (at risk for tumor spread) had been successfully covered.

In November, further drug distribution and safety data were presented at the Annual Meeting of the Society for Neuro-Oncology (San Francisco, CA) on the first 15 patients in the study confirming earlier results presented at the 2017 Congress of Neurological Surgeons.

On May 2, 2018, Medicenna announced that half the patients in the ongoing Phase 2b study of MDNA55 in recurrent glioblastoma had been recruited and that the data to date demonstrated solid safety results and early signals of efficacy based on the findings of the Safety Review and Clinical Advisory Committees, comprised of key opinion leaders and study investigators. Following the recruitment milestone, the protocol was amended to implement optimal methodologies for treatment of the remaining patients, including more personalized dosing based on tumor load, incorporation of advanced imaging to more reliably measure treatment responses, and the ability to administer a second dose of MDNA55 where appropriate.

On April 27, 2017 we announced the issuance of a US Patent related to our lead clinical candidate MDNA55. U.S. Patent 9,629,899, issued to the U.S. Department of Health and Human Services and licensed exclusively to Medicenna, covers the combination of MDNA55 with other anti-cancer therapeutic agents.
Superkine Platform

MDNA109 is an IL-2 Superkine licensed from Stanford University and has been engineered to make existing cancer therapies work for more people. By selectively boosting the cancer fighting T and NK cells, it can dramatically improve the anti-tumor activity of treatments such as checkpoint inhibitors, cancer vaccines, CAR-T therapies and oncolytic viruses. New long-acting variants of MDNA109 have shown promising early pre-clinical results in aggressive models of melanoma when administered sub-cutaneously (under the skin) potentially allowing convenient once weekly or bi-weekly treatments as opposed to daily intravenous (IV) infusions.

The U.S. Patent & Trademark Office issued Medicenna a patent related to the Company’s Superkine platform. U.S. Patent 9,738,696, issued to the Board of Trustees of the Leland Stanford Junior University ("Stanford") and licensed exclusively to Medicenna, covers the composition of engineered IL-4 Superkines.
Operational Highlights

On August 1, 2017, the Company announced the graduation of its common shares to the main board of the TSX, the premier stock exchange in Canada.

On September 21, 2017, the Company appointed William W. Li, MD, an experienced oncology drug development expert, to its Board of Directors.

On October 18, 2017, the Company’s common shares were listed on the OTCQX, a segment of the OTC marketplace reserved for high-quality non-U.S. companies, under the symbol, "MDNAF."
Annual Financial Results

Net loss for the year ended March 31, 2018 was $7,465,452, compared to a net loss of $7,631,265 for the year ended March 31, 2017. The decrease in net loss in the year ended March 31, 2018 compared with the year ended March 31, 2017 was primarily a result of one-time costs incurred in the prior year including a liquidity payment and a non-cash listing expense of $1,784,414 resulting from the reverse takeover transaction completed in the year ended May 31, 2017. These decreases from the prior year were offset by increased spending on the Phase 2b clinical trial of MDNA55 as well as increased costs incurred on the pre-clinical pipeline, specifically MDNA109 during the year ended March 31, 2018.

Research and development expenses for the year ended March 31, 2018 were $5,090,146, compared to $4,229,110 for the year ended March 31, 2017. The increase is primarily due to costs associated with the initiation of discovery and pre-clinical activities associated with the Superkine programs including MDNA109 as well as the development of MDNA57 (second generation MDNA55). In addition, clinical costs increased significantly in the current year due to patient treatment and related expenses in the Phase 2b clinical trial of MDNA55 for which the first patient was treated in April 2017. These increases were partially offset by reduced costs associated with the manufacture, testing and stability studies of MDNA55 drug product, as well as lower licensing, patent legal fees and royalty expense due to the one-time liquidity payment discussed above.

General and administrative expenses for the year ended March 31, 2018 were $2,334,684, compared to $1,684,671 for the year ended March 31, 2017. The increase is primarily due to higher stock-based compensation expense, fees associated with the graduation of Medicenna’s common shares from the TSX Venture exchange to the main TSX Board, the OTCQX listing, investor relations activities and fees paid to the Board of Directors. The noted increases are partially offset by lower salary and benefit costs in the year ended March 31, 2018 due to severance costs incurred in the prior year as well as lower legal, professional and finance expenses in the year ended March 31, 2018 due to costs related to the reverse takeover transaction incurred in the prior year.

Medicenna had a cash balance of $3,938,734 at March 31, 2018.

Outlook

The Company will focus on completing patient enrollment for its Phase 2b clinical trial for MDNA55 in the fourth quarter of calendar 2018 and expects top-line clinical results in early 2019. Medicenna also plans to select a MDNA109 lead candidate with extended half-life characteristics.

Trovagene Announces Preliminary Clinical Data from First Dosing Cohort Demonstrating Durable Treatment Effect of PCM-075 in Combination with Cytarabine or Decitabine in Patients with Relapsed or Refractory AML

On June 27, 2018 Trovagene, Inc. (NASDAQ: TROV), a clinical-stage oncology therapeutics company, developing targeted therapeutics for the treatment of hematologic and solid tumor cancers, reported preliminary clinical data from the first dosing cohort showing a treatment effect with PCM-075 in combination with low-dose cytarabine (LDAC) or decitabine, as measured by decreases in leukemic cells in both peripheral blood and bone marrow in patients in its ongoing Phase 1b/2 trial in relapsed or refractory Acute Myeloid Leukemia (AML) (Press release, Trovagene, JUN 27, 2018, View Source [SID1234527483]).

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Both blood and bone marrow samples were obtained from patients with relapsed or refractory AML enrolled in the Phase 1b/2 trial prior to, and at timepoints following administration of PCM-075, in combination with cytarabine or decitabine. In the first dose level, seven patients were treated with PCM-075 at 12 mg/m2 in combination with either LDAC or decitabine. One patient was not evaluable for safety due to rapid disease progression. Among the other 6 patients, no dose-limiting toxicities (DLTs) were observed that would prohibit further escalation of the PCM-075 dosing. Three patients exhibited substantial reductions in the percentage of both circulating leukemic cells within the blood and leukemic cells within the bone marrow. Two of these three patients continued on treatment in the second cycle and further decreases in circulating leukemic cells in the blood and within the bone marrow were observed. One patient had a decrease in his bone marrow blasts from 96% to 40% at the end of cycle 2 and has continued on treatment in cycle 3. The next dose level cohort of PCM-075 at 18 mg/m2 in combination with LDAC or decitabine is currently enrolling and dosing patients.

In addition, Translational Control Tumor Protein (TCTP), which is uniquely phosphorylated by PLK1, was used to evaluate PLK1 inhibition by PCM-075. Data presented by Trovagene at the 2018 American Association for Cancer Research (AACR) (Free AACR Whitepaper) showed that PCM-075 decreases phosphorylated TCTP (pTCTP) in AML cell lines. In these same cell lines pTCTP levels were unaffected by treatment with either LDAC or decitabine.

PLK1 inhibition in the Phase 1b/2 AML trial is being assessed in patients 3-hours following administration of PCM-075 in combination with LDAC or decitabine, when PCM-075 levels are expected to be at their peak concentration (Cmax). Significant reductions in PLK1, as measured by pTCTP levels, were observed in the circulating blood cells in four of six patients treated with PCM-075 in combination with cytarabine or decitabine. Three of these four patients also had significant reductions in circulating blast cells during the treatment cycle.

"While we are still quite early in the trial, these data points are encouraging from both a safety and efficacy standpoint," said Amer Zeidan, MBBS, MHS, Assistant Professor of Medicine, Department of Medicine, and Yale Cancer Center, Yale School of Medicine, Yale University, a leading investigator on the trial. "There were no dose limiting toxicities seen in the first cohort and treatment was generally well tolerated. We know that treatment with decitabine or low-dose cytarabine in patients with relapsed or refractory AML is rarely effective, and the rare patients who do respond usually require several cycles of therapy to do so. Seeing substantial blast reductions in blood and bone marrow achieved in several patients in the first one to two cycles at this first dose level of PCM-075, combined with significant reductions in PLK1 activity as measured by pTCTP levels, potentially suggests synergistic clinical activity with the combination therapy. We remain excited to see how our patients will do as we go to higher dose levels of PCM-075."

"In addition to the preliminary clinical data from our first dose cohort, we are encouraged by the additional pharmacodynamic data for patients in our Phase 1b/2 AML trial," said Dr. Mark Erlander, Chief Scientific Officer of Trovagene. "This is the first time we have observed a change in PLK1 status in patients during treatment with PCM-075 in combination with either LDAC or decitabine."

About the PCM-075 Phase 1b/2 Acute Myeloid Leukemia Trial

The Phase 1b/2 trial (NCT03303339) is a multi-center, open-label trial to evaluate the safety and efficacy of PCM-075 in combination with standard-of-care chemotherapy in AML patients who are ineligible for intensive induction therapy or whose disease is relapsed or refractory. In Phase 1b dose-escalation segment of the trial, the primary objective is to determine the maximum tolerated dose (MTD) or recommended Phase 2 dose (RP2D), using a traditional 3+3 design. In Phase 2 the MTD or RP2D will be administered to 32 patients to evaluate preliminary antitumor activity and to continue to evaluate the safety and tolerability of PCM-075 in combination with standard-of-care chemotherapy. This trial is being led by Hematologist Jorge Cortes, M.D., Deputy Department Chair, Department of Leukemia, Division of Cancer Medicine, The University of Texas MD Anderson Cancer Center and Amer Zeidan, MBBS, MHS, Assistant Professor of Medicine, Department of Medicine, and Yale Cancer Center, Yale School of Medicine, Yale University, New Haven, CT. Nine clinical sites are currently activated in the U.S. and recruiting patients.

About PCM-075

PCM-075 is a highly-selective adenosine triphosphate (ATP) competitive inhibitor of the serine/threonine polo-like-kinase 1 (PLK 1) enzyme, which is over-expressed in multiple hematologic and solid tumor cancers. Separate studies with other PLK inhibitors have shown that inhibition of polo-like-kinases can lead to tumor cell death, including a Phase 2 study in Acute Myeloid Leukemia (AML) where response rates up to 31% were observed when used in conjunction with a standard therapy for AML (low-dose cytarabine-LDAC) versus treatment with LDAC alone with a 13.3% response rate. A Phase 1 open-label, dose escalation safety study of PCM-075 has been completed in patients with advanced metastatic solid tumor cancers and published in Investigational New Drugs. The maximum tolerated dose (MTD) or recommended Phase 2 dose (RP2D) in this trial was 24 mg/m2. Trovagene has an ongoing Phase 1b/2 clinical trial with PCM-075 in AML that was accepted by the National Library of Medicine (NLM) and is now publicly viewable on www.clinicaltrials.gov. The NCT number assigned by clinicaltrials.gov for this study is NCT03303339. PCM-075 has been granted Orphan Drug Designation by the FDA for the treatment of patients with AML. Trovagene is enrolling a Phase 2 trial of PCM-075 in combination with Zytiga (abiraterone acetate) and prednisone in metastatic Castration-Resistant Prostate Cancer that was accepted by the National Library of Medicine (NLM) and is now publicly viewable on www.clnincaltrials.gov. The NCT number assigned by clinicaltrials.gov for this study is NCT03414034.

PCM-075 only targets the PLK1 isoform (not PLK2 or PLK3), is orally available, has a 24-hour drug half-life with reversible on-target hematologic toxicities. Trovagene believes that targeting only PLK1 with reversible on-target activity and an improved dose/scheduling protocol can significantly improve on the long-term outcome observed in previous studies with a PLK inhibitor in AML.

PCM-075 has demonstrated synergy in preclinical studies with over 10 chemotherapeutic and targeted agents used in hematologic and solid tumor cancers, including FLT3 and HDAC inhibitors, taxanes, and cytotoxins. Trovagene believes the combination of its targeted PLK1 inhibitor, PCM-075, with other compounds, has the potential for improved clinical efficacy in Acute Myeloid Leukemia (AML), metastatic Castration-Resistant Prostate Cancer (mCRPC), Non-Hodgkin Lymphoma (NHL), Triple Negative Breast Cancer (TNBC), as well as other hematologic and solid tumor cancers.