MabVax Therapeutics Announces Acceptance of Three Poster Presentations at the 2018 American Association for Cancer Research (AACR) Annual Meeting

On March 15, 2018 MabVax Therapeutics Holdings, Inc. (NASDAQ: MBVX), a clinical-stage oncology drug development company, reported that it will present three posters at the American Association for Cancer Research (AACR) (Free AACR Whitepaper) Annual Meeting being held April 14-18, 2018 in Chicago, Illinois at McCormick Place (Press release, MabVax, MAR 15, 2018, View Source [SID1234524812]). The first poster session features MVT-1075 (177Lu-CHX-A″-DTPA-HuMab5B1), the Company’s novel fully human antibody-based radioimmunotherapy (RIT) currently being evaluated in clinical development for the treatment of pancreatic cancer and other CA19-9 positive malignancies. The second presentation will feature preclinical investigations on the novel fully human antibody targeting the Thomsen-nouveau (Tn) and the sialyl Tn (sTn) cancer antigens which are highly overexpressed on ovarian and breast cancer tissues. The third poster features the Company’s immunoPET imaging agent MVT-2163 (89Zr-DFO-HuMab5B1), as a companion diagnostic for use in pancreatic cancer and CA19-9 positive malignancies.

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MabVax Therapeutics Logo (PRNewsfoto/MabVax Therapeutics Holdings, I)

Paul Maffuid, Ph.D., Executive Vice President of Research and Development of MabVax, stated, "We look forward to sharing the significant progress we have made through these clinical and preclinical studies that continue to establish our growing body of data supporting the development of MVT-1075 for the treatment of pancreatic cancer and other CA19-9 cancers, and our most advanced research program focused on the Tn and sTn cancer antigens."

Dr. Maffuid continued, "MVT-1075 potentially represents a more potent analog of our fully human HuMab-5B1 therapeutic antibody and establishing these safety and early response data bring us an important step closer in providing a much-needed treatment option for patients who have these devastating cancers. Equally important, our anti-Tn/sTn antibody program has made significant progress over the last few months and these data are the subject of partnering interest."

MabVax Abstracts and Poster Presentations

Sunday April 15, 2018 from 1:00 PM – 5:00 PM CDT:
Title: A fully human antibody binds Tn and sTn carbohydrate antigens specifically on serine residues, without need for polypeptide interaction
Session Location: Poster Section 43
Abstract Number: LB-002, Poster Board Number 2
Presenting Author: Jonah Rainey, Ph.D., Executive Director, Antibody Research MabVax Therapeutics

Tuesday April 17, 2018 from 8:00 AM – 12:00 PM CDT:
Title: Phase I dose escalation study of 177Lu-HuMab-5B1 (MVT-1075) in combination with MVT-5873 as radioimmunotherapy (RIT) in subjects with relapsed / refractory pancreatic cancer or other CA19-9+ malignancies
Session Location: McCormick Place South, Hall A, Poster Section 42
Abstract Number: CT140, Poster Board Number 23
Presenting Author: Paul Maffuid, Ph.D., Executive Vice President, Research & Development MabVax Therapeutics

Tuesday April 17, 2018 from 8:00 AM – 12:00 PM CDT:
Title: PEGylated Hyaluronidase Increases Tumor Uptake of 89Zr-DFO-HuMab-5B1 (MVT-2163) in a CA19-9 Positive Hyaluronan-Accumulating Pancreatic Cancer Model
Session Location: McCormick Place South, Hall A, Poster Section 1
Abstract Number: 3036, Poster Board Number 9
Co-presenting Authors: Paul Maffuid, Ph.D., Executive Vice President, Research & Development and Jonah Rainey, MabVax Therapeutics Executive Director, Antibody Research MabVax Therapeutics

About MVT-1075

MVT-1075 is a radioimmunotherapy product that combines established efficacy of radiation therapy with tumor specific targeting. It has the potential to deliver a more potent HuMab-5B1 based product. MVT-1075 uses small doses of the Company’s MVT-5873 antibody, coupled to a radioisotope to target pancreatic cancer cells and kill them.

About the HuMab-Tn Antibody Targeting Tn and sTn

HuMab-Tn is a fully human antibody derived from a patient vaccinated with a pool of cancer glycans, including Tn. The antibody has been affinity-matured and demonstrates highly selective Tn/sTn glycan binding. Further, the antibody recognizes a wide array of cancers, particularly ovarian and breast including approximately 90% of triple negative breast cancers tested.

About MVT-2163

MVT-1075 is an immunoPET imaging agent product that combines the established PET imaging capabilities of 89Zr with 5B1 tumor specific targeting. It has the potential to aid in identifying the best surgical treatment options for patients with pancreatic cancer and as a potential companion diagnostic with treatment options.

New Data on Molecular Templates’ Engineered Toxin Bodies to be Presented at the American Association of Cancer Research (AACR) Annual Meeting 2018

On March 15, 2018 Molecular Templates, Inc., (Nasdaq:MTEM) a clinical stage biopharmaceutical company focused on the discovery and development of Engineered Toxin Bodies, a new class of targeted biologic therapies that possess unique mechanisms of action in oncology, reported that new data on two of its pipeline programs will be presented at the American Association of Cancer Research (AACR) (Free AACR Whitepaper) Annual Meeting 2018, to be held April 14-18 at McCormick Place North/South in Chicago, Illinois (Press release, Molecular Templates, MAR 15, 2018, View Source [SID1234524813]).

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Molecular Templates has utilized the ability of its Engineered Toxin Bodies (ETBs) to route to the endoplasmic reticulum and cytoplasm to deliver cytomegalovirus (CMV) foreign antigen for presentation in the context of MHC class I molecules on tumor cells. This Antigen Seeding Technology (AST) allows for the targeted delivery, intracellular processing, and surface MHC-I presentation of CMV antigen and subsequent destruction of tumors via a CMV-specific T lymphocyte response.

Preclinical data on the company’s PD-L1 targeted ETB incorporating AST will be presented at the AACR (Free AACR Whitepaper) meeting. This molecule has been engineered to both destroy PD-L1-expressing tumor cells via ribosomal destruction and to deliver the immunodominant HLA:A02 restricted cytomegalovirus (CMV) protein-pp65 for MHC-I presentation on these cells. The dual mechanisms of action against the PD-L1 target allow for a more potent and complete destruction of tumor cells. Molecular Templates expects this program to enter the clinic in the first half of 2019.

"We are excited by this wholly novel approach to immuno-oncology," said Eric Poma, Ph.D., CEO and CSO of Molecular Templates. "Antigen seeding is a way to target an immense, activated T-cell repertoire to the tumor without having to overcome T-cell exhaustion or stimulate antigen presentation from APCs. We are looking forward moving to this approach into the clinic."

Date: Monday, April 16
Time: 1:00pm – 5:00pm Central Time
Session: PO.IMO2.11 – Therapeutic Antibodies, Including Engineered Antibodies 2
Location: Section 34
Poster Title: Antigen Seeding Technology by Engineered Toxin Bodies Provides a Targeted Immuno-Oncology Approach for Treatment of Cancers
Authors: Brigitte Brieschke, Sangeetha Rajagopalan, Garrett L. Robinson, Erin K. Willert, Hilario J. Ramos

Molecular Templates will also present on its HER2 engineered toxin body program. MT-5111, a HER2-targeted ETB with picomolar potency against HER2 expressing cells, was designed to overcome mechanisms of resistance to current HER2 targeting modalities such as escape from antibody dependent cell-mediated cytotoxicity (ADCC), alterations in signal transduction, epitope masking, and enhanced small molecule efflux. Additionally, MT-5111 was genetically engineered to reduce the anti-drug antibody response and signaling through innate receptors, allowing for repeat dosing.

In vitro and in vivo data will be presented at the AACR (Free AACR Whitepaper) meeting, highlighting the potential for MT-5111 as a novel agent in development for treatment of breast carcinomas and other malignancies overexpressing the HER2 receptor. Molecular Templates intends to file an IND with MT-5111 in 2018.

"Antibody, small molecule, and ADC approaches to HER2 have all shown meaningful benefit in patients with HER2+ cancers but ultimately cease to work in most patients even though HER2 expression persists," said Eric Poma, Ph.D., CEO and CSO of Molecular Templates. "We believe the unique mechanism of action of our HER2 ETB may circumvent mechanisms of resistance to the other HER2 modalities."

Date: Wednesday, April 18
Time: 8:00am – 12:00pm Central Time
Session: PO.ET01.02 – Antibodies, Fusion Proteins, and Related Biologics
Location: Section 35
Poster Title: Targeted Engineered Toxin Bodies Provide a Novel Mechanism of Action Against HER2 Positive Cancers
Authors: Brigitte Brieschke, Garrett L. Robinson, Sangeetha Rajagopalan, Hilario J. Ramos, Jensing Liu, Jack P. Higgins, Erin K. Willert

Exelixis Submits U.S. Supplemental New Drug Application for CABOMETYX® (Cabozantinib) for Previously Treated Advanced Hepatocellular Carcinoma

On March 15, 2018 Exelixis, Inc. (NASDAQ:EXEL) reported it has completed the submission of a supplemental New Drug Application (sNDA) to the U.S. Food and Drug Administration (FDA) for CABOMETYX (cabozantinib) tablets as a treatment for patients with previously treated advanced hepatocellular carcinoma (HCC) (Press release, Exelixis, MAR 15, 2018, View Source;p=RssLanding&cat=news&id=2338226 [SID1234525492]).The sNDA submission is based on results from the CELESTIAL randomized pivotal phase 3 trial of CABOMETYX in patients with advanced HCC who received prior sorafenib.

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"We look forward to working closely with regulatory authorities through the review process in anticipation of bringing CABOMETYX to people diagnosed with advanced hepatocellular carcinoma, an underserved patient community that urgently needs new treatment options," said Gisela Schwab, M.D., President, Product Development and Medical Affairs and Chief Medical Officer, Exelixis. "We would sincerely like to thank the study patients and clinicians who participated in the CELESTIAL trial as well as our dedicated clinical development, medical and regulatory teams for bringing us another step closer to our goal of fully exploring the potential of CABOMETYX and making it accessible to every patient who may benefit from its use."

On October 16, 2017, Exelixis announced that the independent data monitoring committee for the study recommended that the CELESTIAL trial be stopped for efficacy following review at the second planned interim analysis, with cabozantinib providing a statistically significant and clinically meaningful improvement in OS compared with placebo in patients with previously treated advanced HCC (pre-specified critical p-value ≤ 0.021). In March 2017, the FDA granted orphan drug designation to cabozantinib for the treatment of advanced HCC.

An sNDA is an application to the FDA that, if approved, will allow a drug sponsor to make changes to a previously approved product label, including modifications to the indication.

About the CELESTIAL Study
CELESTIAL is a randomized, double-blind, placebo-controlled study of cabozantinib in patients with advanced HCC conducted at more than 100 sites globally in 19 countries. The trial was designed to enroll 760 patients with advanced HCC who received prior sorafenib and may have received up to two prior systemic cancer therapies for HCC and had adequate liver function. Enrollment of the trial was completed in September 2017. Patients were randomized 2:1 to receive 60 mg of cabozantinib once daily or placebo and were stratified based on etiology of the disease (hepatitis C, hepatitis B or other), geographic region (Asia versus other regions) and presence of extrahepatic spread and/or macrovascular invasion (yes or no). No cross-over was allowed between the study arms during the blinded treatment phase of the trial. The primary endpoint for the trial is OS, and secondary endpoints include objective response rate and progression-free survival. Exploratory endpoints include patient-reported outcomes, biomarkers and safety.

About HCC
Liver cancer is the second-leading cause of cancer death worldwide, accounting for more than 700,000 deaths and nearly 800,000 new cases each year.1 In the U.S., the incidence of liver cancer has more than tripled since 1980.2 HCC is the most common form of liver cancer, making up about three-fourths of the estimated nearly 42,000 new cases in the U.S. in 2018.2 HCC is the fastest-rising cause of cancer-related death in U.S.3 Without treatment, patients with advanced HCC usually survive less than 6 months.4

About CABOMETYX (cabozantinib)
CABOMETYX tablets are approved in the United States for the treatment of patients with advanced RCC. CABOMETYX tablets are also approved in the European Union, Norway, Iceland, Australia, Switzerland and South Korea for the treatment of advanced RCC in adults who have received prior vascular endothelial growth factor (VEGF)-targeted therapy. Ipsen also submitted to European Medicines Agency (EMA) the regulatory dossier for cabozantinib as a treatment for first-line advanced RCC in the European Union on August 28, 2017; on September 8, 2017, Ipsen announced that the EMA validated the application. In 2016, Exelixis granted Ipsen exclusive rights for the commercialization and further clinical development of cabozantinib outside of the United States and Japan. In 2017, Exelixis granted exclusive rights to Takeda Pharmaceutical Company Limited for the commercialization and further clinical development of cabozantinib for all future indications in Japan, including RCC.

CABOMETYX is not indicated for previously treated advanced HCC.

Please see Important Safety Information below and full U.S. prescribing information at View Source

U.S. Important Safety Information

Hemorrhage: Severe and fatal hemorrhages have occurred with CABOMETYX. In two RCC studies, the incidence of Grade ≥ 3 hemorrhagic events was 3% in CABOMETYX-treated patients. Do not administer CABOMETYX to patients that have or are at risk for severe hemorrhage.
Gastrointestinal (GI) Perforations and Fistulas: In RCC studies, fistulas were reported in 1% of CABOMETYX-treated patients. Fatal perforations occurred in patients treated with CABOMETYX. In RCC studies, gastrointestinal (GI) perforations were reported in 1% of CABOMETYX-treated patients. Monitor patients for symptoms of fistulas and perforations, including abscess and sepsis. Discontinue CABOMETYX in patients who experience a fistula which cannot be appropriately managed or a GI perforation.
Thrombotic Events: CABOMETYX treatment results in an increased incidence of thrombotic events. In RCC studies, venous thromboembolism occurred in 9% (including 5% pulmonary embolism) and arterial thromboembolism occurred in 1% of CABOMETYX-treated patients. Fatal thrombotic events occurred in the cabozantinib clinical program. Discontinue CABOMETYX in patients who develop an acute myocardial infarction or any other arterial thromboembolic complication.
Hypertension and Hypertensive Crisis: CABOMETYX treatment results in an increased incidence of treatment-emergent hypertension, including hypertensive crisis. In RCC studies, hypertension was reported in 44% (18% Grade ≥ 3) of CABOMETYX-treated patients. Monitor blood pressure prior to initiation and regularly during CABOMETYX treatment. Withhold CABOMETYX for hypertension that is not adequately controlled with medical management; when controlled, resume CABOMETYX at a reduced dose. Discontinue CABOMETYX for severe hypertension that cannot be controlled with anti-hypertensive therapy. Discontinue CABOMETYX if there is evidence of hypertensive crisis or severe hypertension despite optimal medical management.
Diarrhea: In RCC studies, diarrhea occurred in 74% of patients treated with CABOMETYX. Grade 3 diarrhea occurred in 11% of patients treated with CABOMETYX. Withhold CABOMETYX in patients who develop intolerable Grade 2 diarrhea or Grade 3-4 diarrhea that cannot be managed with standard antidiarrheal treatments until improvement to Grade 1; resume CABOMETYX at a reduced dose.
Palmar-Plantar Erythrodysesthesia (PPE): In RCC studies, palmar-plantar erythrodysesthesia (PPE) occurred in 42% of patients treated with CABOMETYX. Grade 3 PPE occurred in 8% of patients treated with CABOMETYX. Withhold CABOMETYX in patients who develop intolerable Grade 2 PPE or Grade 3 PPE until improvement to Grade 1; resume CABOMETYX at a reduced dose.
Reversible Posterior Leukoencephalopathy Syndrome (RPLS), a syndrome of subcortical vasogenic edema diagnosed by characteristic finding on MRI, occurred in the cabozantinib clinical program. Perform an evaluation for RPLS in any patient presenting with seizures, headache, visual disturbances, confusion or altered mental function. Discontinue CABOMETYX in patients who develop RPLS.
Embryo-fetal Toxicity may be associated with CABOMETYX. Advise pregnant women of the potential risk to a fetus. Advise females of reproductive potential to use effective contraception during CABOMETYX treatment and for 4 months after the last dose.
Adverse Reactions: The most commonly reported (≥25%) adverse reactions are: diarrhea, fatigue, nausea, decreased appetite, hypertension, PPE, weight decreased, vomiting, dysgeusia, and stomatitis.
Strong CYP3A4 Inhibitors: If concomitant use with strong CYP3A4 inhibitors cannot be avoided, reduce the CABOMETYX dosage.
Strong CYP3A4 Inducers: If concomitant use with strong CYP3A4 inducers cannot be avoided, increase the CABOMETYX dosage.
Lactation: Advise women not to breastfeed while taking CABOMETYX and for 4 months after the final dose.
Hepatic Impairment: In patients with mild to moderate hepatic impairment, reduce the CABOMETYX dosage. CABOMETYX is not recommended for use in patients with severe hepatic impairment.
Please see accompanying full Prescribing Information View Source

Intellia Therapeutics Announces Fourth Quarter and Full Year 2017 Financial Results

On March 14, 2018 Intellia Therapeutics, Inc. (NASDAQ:NTLA), a leading genome editing company focused on developing curative therapeutics using CRISPR technology, reported financial results and operational progress for the fourth quarter and full year of 2017 (Press release, Intellia Therapeutics, MAR 14, 2018, View Source [SID1234524759]).

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Using our proprietary lipid nanoparticle (LNP) delivery system, Intellia has achieved near-complete knockout editing of the transthyretin amyloidosis target gene (TTR) in rodents and most recently shared data on the progress of non-human primate (NHP) studies. In the fourth quarter, our NHP studies continued, yielding higher levels of editing as the Company improved the LNP formulation and dosing regimens, including repeated doses. Ongoing efforts in the NHP studies focus on consistently achieving a therapeutically relevant level of editing for the TTR gene as determined by transthyretin level reductions and we continue to observe and, as in prior animal studies, gather long-term durability data.

In parallel with the continuous progress on ATTR, during the fourth quarter, the Company expanded its research in the liver in two ways. First, in collaboration with partner Regeneron Pharmaceuticals, Inc. (Regeneron), we successfully inserted a functional gene into a specific site in the mouse genome, achieving therapeutically relevant levels of gene expression and demonstrating proficiency in executing complex editing procedures. These results provide a proof-of-principle for a large class of genetic defects that cannot be addressed solely by gene knockout. Second, knockout editing in livers of mice was successful for a second therapeutic target, the SERPINA1 gene that gives rise to liver complications in certain alpha-1 antitrypsin deficiency patients. The Company plans to present these data at upcoming scientific conferences and extend our evaluation in additional in vivo studies.

Through the ongoing collaboration with Novartis Institutes for BioMedical Research, Inc. (Novartis), the Company made further progress on complex ex vivo editing. Data presented at the 2017 American Society of Hematology (ASH) (Free ASH Whitepaper) Annual Meeting and Exposition showed that an Intellia-qualified gRNA targeting the erythroid specific enhancer region of the BCL11A gene in human CD34+ cells could edit greater than 80 percent of these healthy bone marrow-derived cells, which led to the majority of the cells expressing fetal hemoglobin. These edited hematopoietic stem cells maintained engraftment over a 16-week period and demonstrated multi-lineage reconstitution, retaining their ability to complete normal hematopoiesis (blood cell formation) after the gene edit.

"2017 marked significant progress for Intellia with the CRISPR/Cas9 technology and our lead ATTR program. We demonstrated editing with our proprietary lipid nanoparticle delivery system across multiple animal species, including NHPs, and advanced this program towards clinical studies. After raising an additional $141 million, we are advancing the Company’s emerging pipeline of indications in the liver, including transthyretin amyloidosis and alpha-1 antitrypsin deficiency, expanding our in vivo editing work beyond the liver into CNS, and accelerating our ex vivo cellular therapy programs," said President and Chief Executive Officer, John Leonard, M.D., Intellia Therapeutics. "As we begin 2018, our team remains focused on the patient and making genome editing-based therapies a reality. We are well-positioned to deliver against our goals and mission."

The Company achieved several key milestones during 2017, including:

Produced interim, top-line NHP data demonstrating, for the first time, liver genome editing using CRISPR/Cas9 delivered through a LNP system;
Confirmed re-dosing in NHPs produced increased levels of editing, where the treatment/drug and regimen was well tolerated as assessed by clinical signs and chemistry;
Presented 12-month data from a long-term mouse study, demonstrating robust and durable in vivo genome editing following a single, systemic intravenous delivery of Intellia’s proprietary, non-viral, LNP delivery system;
Evaluated in vivo delivery by LNPs to a second organ, with successful genome editing by CRISPR/Cas9 in the central nervous system (cerebellum and striatum) in mice;
In collaboration with Regeneron, produced positive insertion editing data in mice, demonstrating capability to perform complex genetic editing;
In collaboration with Novartis, generated positive data in sickle cell anemia in transplant mouse models; and
Continued to enhance and defend the Company’s CRISPR/Cas9 foundational and therapeutic intellectual property position, which included filing multiple patent applications covering our inventions and the issuance in Europe, the United Kingdom, Australia and China of foundational CRISPR/Cas9 patents for which we have in-licensed rights.

Upcoming Goals

The Company has set forth the following for 2018 pipeline progression:

Mid-year: begin IND-enabling activities for lead ATTR development candidate
Mid-year: present additional editing data following in vivo delivery by LNPs to organs beyond the liver
Late 2018: advance lead development candidate for second indication
During 2018: present additional insertion/repair editing data; and
During 2018: present preclinical data in support of our first proprietary ex vivo programs on immuno-oncology and autoimmune/inflammation indications.

Fourth Quarter and Full Year 2017 Financial Results

Collaboration Revenue

Collaboration revenue was $6.7 million for the fourth quarter of 2017, compared to $5.6 million for the fourth quarter of the prior year. The increase in collaboration revenue in 2017 was primarily driven by amounts recognized under Intellia’s collaboration agreement with Regeneron which was entered in April 2016.

Since inception through December 31, 2017, the Company has received $106.1 million in funding from the collaborations with Novartis and Regeneron, excluding amounts received for equity investments, and had an accounts receivable balance of $10.5 million at December 31, 2017. Excluding the $2.6 million of the upfront payment received from Novartis, which was allocated to the purchase of the Company’s equity securities, Intellia has recognized $48.6 million in collaboration revenue under these agreements from inception through December 31, 2017, and had a remaining deferred revenue balance of $65.3 million at December 31, 2017.

Operating Expenses

Research and Development expenses increased by $9.8 million to $21.2 million during the fourth quarter of 2017, compared to $11.3 million during the same period of 2016. This increase was driven primarily by the advancement of Intellia’s research programs, research personnel growth to support these programs, as well as the expansion of the development organization, and includes laboratory supplies, research materials and certain equipment. Additionally, salary and related headcount-based expenses increased, as the Company grew to 143 research and development personnel as of December 31, 2017, from 74 research and development employees as of December 31, 2016.

General and administrative expenses increased by $5.1 million to $10.2 million during the fourth quarter of this year, compared to $5.1 million in the fourth quarter of 2016. This increase was driven primarily by increased salary and related headcount-based expenses as the Company grew to 41 general and administrative employees as of December 31, 2017, from 29 general and administrative employees as of December 31, 2016, to support Intellia’s larger research and development organization, public company compliance and administrative obligations. The Company also incurred increased corporate insurance, legal, and other professional expenses related to our expanding operations since becoming a public company in May 2016.

The Company’s net loss was $24.0 million for the fourth quarter of 2017, compared to $10.6 million for the fourth quarter of 2016.

Balance Sheet

Cash and cash equivalents at December 31, 2017, were $340.7 million, compared to $273.1 million at December 31, 2016. The base period cash and cash equivalents were primarily attributable to $115.5 million in proceeds from the Company’s initial public offering and $55.0 million in concurrent private placements in May 2016, in addition to a $75.0 million upfront payment from Regeneron in April 2016 and a follow-on public offering of $141.0 million in November 2017.

Financial Guidance

The Company’s primary uses of capital will continue to be research and development programs, laboratory and related supplies, compensation costs for current and future employees, consulting, legal and other regulatory expenses, patent prosecution filing and maintenance costs for Intellia’s licensed intellectual property, and general overhead costs.

As of December 31, 2017, the Company had an accumulated deficit of $121.1 million. The Company expects losses to increase as it continues to incur significant research and development expenses related to the advancement of Intellia’s therapeutic programs and ongoing operations. Based on Intellia’s research and development plans and expectations related to the progress with the Company’s programs, the Company expects that the cash and cash equivalents as of December 31, 2017, as well as technology access and research funding from Novartis and Regeneron, will enable Intellia to fund operating expenses and capital expenditures through mid-2020, excluding any potential milestone payments or extension fees that could be earned and distributed under the collaboration agreements with Novartis and Regeneron or any strategic use of capital not currently in the base case planning assumptions.

TESARO Announces Data Presentations at the 2018 American Association for Cancer Research Annual Meeting

On March 14, 2018 TESARO, Inc. (NASDAQ:TSRO), an oncology-focused biopharmaceutical company, reported that data for ZEJULA, TSR-042 (anti-PD-1 antibody) and the company’s immuno-oncology portfolio will be presented at the 2018 American Association for Cancer Research (AACR) (Free AACR Whitepaper) Annual Meeting, being held April 14-18, 2018 in Chicago (Press release, TESARO, MAR 14, 2018, View Source [SID1234524775]).

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"This year’s AACR (Free AACR Whitepaper) annual meeting will mark the first presentation of initial data from the GARNET trial of TSR-042, our anti-PD-1 antibody, in patients with MSI-high endometrial cancer or non-small cell lung cancer," said Mary Lynne Hedley, Ph.D., President and COO of TESARO. "TSR-042 provides a strategic advantage for TESARO in further developing niraparib and our immuno-oncology product candidates, and we expect to complete enrollment in the MSI-high registration trial at the end of this year. The breadth of our IO portfolio, which also includes antibodies targeting TIM-3 and LAG-3, enables TESARO to evaluate novel combination approaches with a goal of providing transformative therapies for people living with cancer."

Please plan to visit TESARO at Booth #1645 for information on the expanded development program for ZEJULA, TSR-042 and our broader immuno-oncology portfolio.

Poster Information (all times local):

Immuno-oncology

Monday, April 16, 2018, 8:00 AM to 12:00 PM
Preliminary safety, efficacy and PK/PD characterization from GARNET, a phase I clinical trial of the anti-PD-1 monoclonal antibody, TSR-042, in patients with recurrent or advanced NSCLC or MSI-H endometrial cancer
Poster Session, Abstract: CT053, Location: Exhibit Hall A, Poster Section 42, Poster Board 6

Monday, April 16, 2018, 8:00 AM to 12:00 PM
Checkpoint inhibitor signatures across endometrial cancer histologies
Poster Session, Abstract: 1687, Location: Exhibit Hall A, Poster Section 31, Poster Board 12

Monday, April 16, 2018, 8:00 AM to 12:00 PM
Simultaneous measurement and significance of PD-1, LAG-3 and TIM-3 expression in human solid tumors
Poster Session, Abstract: 1681, Location: Exhibit Hall A, Poster Section 31, Poster Board 6

Monday, April 16, 2018, 1:00 PM to 5:00 PM
Investigation of the expression profile and functional role of PD-1, TIM-3 and LAG-3 in human tumors
Poster Session, Abstract: 2722, Location: Exhibit Hall A, Poster Section 32, Poster Board 14

Wednesday, April 18, 2018, 8:00 AM to 12:00 PM
Characterization of tumor growth and immune microenvironment in humanized NOG-EXL mice implanted with A549, MDA-MB-436 and A375 cells
Poster Session, Abstract: 5690, Location: Exhibit Hall A, Poster Section 31, Poster Board 26

ZEJULA (niraparib)

Monday, April 16, 2018, 1:00 PM to 5:00 PM
Efficacy and pharmacokinetics of niraparib in BRCA-mutant and wild-type intracranial triple negative breast cancer murine models
Poster Session, Abstract: 2813, Location: Exhibit Hall A, Poster Section 37, Poster Board 3

Monday, April 16, 2018, 8:00 AM to 12:00 PM
Evaluation of niraparib in combination with anti-PD1/anti-PD-L1 in preclinical models
Poster Session, Abstract: 1724, Location: Exhibit Hall A, Poster Section 32, Poster Board 19

Wednesday, April 18, 2018, 8:00 AM to 12:00 PM
Enhanced anti-tumor effects of selinexor and niraparib in preclinical models of ovarian cancer
Poster Session, Abstract: 5826, Location: Exhibit Hall A, Poster Section 37, Poster Board 22

Niraparib is marketed in the United States and Europe under trade name ZEJULA.

About ZEJULA (niraparib)
Niraparib is marketed in the United States and Europe under trade name ZEJULA. ZEJULA (niraparib) is a poly(ADP-ribose) polymerase (PARP) inhibitor indicated for the maintenance treatment of adult patients with recurrent epithelial ovarian, fallopian tube, or primary peritoneal cancer who are in a complete or partial response to platinum-based chemotherapy. In preclinical studies, ZEJULA concentrates in the tumor relative to plasma, delivering greater than 90% durable inhibition of PARP 1/2 and a persistent antitumor effect. Myelodysplastic Syndrome/Acute Myeloid Leukemia (MDS/AML), including some fatal cases, was reported in patients treated with ZEJULA. Discontinue ZEJULA if MDS/AML is confirmed. Hematologic adverse reactions (thrombocytopenia, anemia and neutropenia), as well as cardiovascular effects (hypertension and hypertensive crisis) have been reported in patients treated with ZEJULA. Monitor complete blood counts to detect hematologic adverse reactions, as well as to detect cardiovascular disorders, during treatment. ZEJULA can cause fetal harm and females of reproductive potential should use effective contraception. Please see full prescribing information, including additional important safety information, available at www.zejula.com.

About TSR-042
TSR-042 is a monoclonal antibody targeting PD-1 and was developed as part of the collaboration between TESARO and AnaptysBio, Inc. This collaboration was initiated in March of 2014, and is focused on the development of monospecific antibody drugs targeting PD-1, TIM-3 (TSR-022), and LAG-3 (TSR-033), in addition to a bi-specific antibody drug candidate targeting PD-1/LAG-3 (TSR-075).