Genocea Presents Preclinical Research that Shows Inhibitory Neoantigens Stifle Protective Anti-Tumor Immune Responses at Society for Immunotherapy of Cancer (SITC)

On November 5, 2019 Genocea Biosciences, Inc. (NASDAQ: GNCA), a biopharmaceutical company developing next-generation neoantigen immunotherapies, reported preclinical and clinical data demonstrating that ATLAS can identify relevant neoantigens and exclude inhibitory neoantigens that suppress anti-tumor immune responses at the 34th Annual Meeting of the Society for Immunotherapy of Cancer (SITC) (Free SITC Whitepaper), taking place from November 6 – 10, 2019 in National Harbor, Maryland (Press release, Genocea Biosciences, NOV 5, 2019, View Source [SID1234550326]). ATLAS is Genocea’s unique platform that profiles each patient’s T cell responses to every candidate neoantigen to select those driving pre-existing anti-tumor responses. Additional data will also be presented, demonstrating that inhibitory neoantigen profiles may predict if a patient will respond to immunotherapy and confirming broad immune response data for the company’s novel neoantigen therapy GEN-009.

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"Our preclinical findings represent exciting and powerful new discoveries in the role that inhibitory neoantigens play in response to immunotherapies," said Tom Davis, M.D., Chief Medical Officer, Genocea. "Through these data, we demonstrate the power of the ATLAS platform to identify and target only those neoantigens with a high propensity to drive anti-tumor responses while excluding inhibitory, immunosuppressive antigens. We are also pleased to share additional GEN-009 results, which round out the GEN-009 clinical immunogenicity data set from our initial patient cohort and confirm the relevance of these preclinical findings in advancing patient treatment."

The following posters will be located in Prince George’s Exhibition Halls AB. Odd-numbered posters will be presented on Friday, November 8th from 12:30 – 2:00 p.m. ET and 6:30 – 8:00 p.m. ET, and even-numbered posters will be presented on Saturday, November 9th from 12:35 – 2:05 p.m. ET and 7:00 – 8:30 p.m. ET.

Summary of Poster #P678 – Vaccine neoantigens empirically identified through the ex vivo ATLAS platform promote potent therapeutic responses to cancer in mice

ATLAS screening of mutations from B16F10 melanoma identified approximately 4 percent of mutations as neoantigens, and 3.5 percent of mutations as eliciting potentially deleterious inhibitory T cell responses; the majority were not algorithm-predicted.

When an ATLAS-identified stimulatory neoantigen was combined in a vaccine formulation and therapeutically administered as monotherapy into tumor-bearing mice, tumor growth was either significantly delayed or completely abrogated in all mice.

Vaccination with inhibitory neoantigens suppresses anti-tumor immune responses.

Summary of Poster #P417 – ATLAS identifies relevant neoantigens for therapeutic anti-tumor vaccination and may serve as a biomarker for efficacy of immunotherapy of solid tumors

In an analysis of the first six patients who participated in the GEN-009 phase 1/2a study, ATLAS identified neoantigens by recalling both stimulatory and inhibitory neoantigen-specific T cell responses; many of which were not predicted using in silico approaches.

Post-vaccination predicted neoantigens were not more immunogenic than not predicted neoantigens.

In a separate analysis including non-vaccinated subjects, the proportion of inhibitory to stimulatory neoantigen-specific responses may be a biomarker of immunotherapy success.

Summary of Poster #P420 – Broad immunogenicity from GEN-009, a neoantigen vaccine using ATLAS, an autologous immune assay, to identify immunogenic and inhibitory tumor neoantigens

GEN-009-101 is a phase 1/2a study testing safety, immunogenicity and clinical activity in immune responsive tumors (NCT03633110).

The vaccine was well-tolerated with only grade 1/2 adverse events reported.

With data from patients enrolled (n=5), vaccination elicited both CD8+ and CD4+ T cell responses in all subjects, as measured by ex vivo and in vitro stimulation fluorospot assays, and confirms broad immune responses generated against 98 percent of all immunized neoantigens with a range of tumor types.

G1 Therapeutics Provides Third Quarter 2019 Corporate and Financial Update

On November 5, 2019 G1 Therapeutics, Inc. (Nasdaq: GTHX), a clinical-stage oncology company, reported a corporate and financial update for the third quarter ended September 30, 2019 (Press release, G1 Therapeutics, NOV 5, 2019, View Source [SID1234550325]).

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"Based on written feedback from the FDA following our pre-NDA meeting in September, we will submit a New Drug Application for myelopreservation in small cell lung cancer. We expect to complete the submission in the second quarter of 2020," said Mark Velleca, M.D., Ph.D., Chief Executive Officer. "Our vision is for trilaciclib to become a new standard of care to mitigate myelosuppression in patients receiving chemotherapy. We are committed to making trilaciclib available to small cell lung cancer patients as quickly as possible, and are executing on a regulatory and development strategy to evaluate the myelopreservation benefits of trilaciclib in the most commonly used chemotherapy regimens. We expect to initiate a Phase 3 trial in colorectal cancer in the second half of 2020. In addition, we will continue to explore trilaciclib in triple-negative breast cancer, where preliminary data has demonstrated a survival benefit."

Third Quarter Regulatory and Clinical Highlights

The company plans to submit an NDA for trilaciclib in small cell lung cancer (SCLC) based on written feedback from FDA. Based on written feedback from its pre-NDA meeting with the U.S. Food and Drug Administration (FDA) in September, the company will file an NDA for trilaciclib in SCLC. The company expects to complete the NDA submission in the second quarter of 2020. Earlier this year, trilaciclib received Breakthrough Therapy Designation (BTD) from the FDA based on positive myelopreservation data in SCLC patients from three randomized Phase 2 clinical trials. The BTD program is designed to expedite development and review of drugs intended for serious or life-threatening conditions.

ESMO presentations: data from Phase 2 clinical trials of trilaciclib in metastatic triple-negative breast cancer (mTNBC) and SCLC and data from Phase 1 clinical trial of G1T48 in ER+, HER2- breast cancer. In an oral presentation on data from a randomized Phase 2 trial of trilaciclib, preliminary overall survival (OS) results demonstrated that women with mTNBC lived significantly longer when receiving trilaciclib and chemotherapy compared with women receiving chemotherapy alone. Data were published simultaneously in The Lancet Oncology. The company also presented updated Phase 2 results in SCLC patients receiving trilaciclib and chemotherapy in combination with Tecentriq (atezolizumab) (press release here) and the first clinical data on its oral selective estrogen receptor degrader (SERD), G1T48. Preliminary results from the ongoing Phase 1/2a dose-escalation trial of G1T48 in patients with estrogen receptor- positive, HER2-negative (ER+, HER2-) breast cancer showed G1T48 was well tolerated and demonstrated evidence of anti-tumor activity in heavily pre-treated patients. Based on safety and tolerability findings in the Phase 1b portion of this trial, the company selected the 600 mg and 1,000 mg doses of G1T48 for evaluation in the ongoing Phase 2a portion (press release here).

Third Quarter 2019 Financial Highlights

Cash Position: Cash, cash equivalents and short-term investments totaled $299.9 million as of September 30, 2019, compared to $369.3 million as of December 31, 2018.

Operating Expenses: Operating expenses were $34.0 million for the third quarter of 2019, compared to $20.8 million for the third quarter of 2018. GAAP operating expenses include stock-based compensation expense of $4.4 million for the third quarter of 2019, compared to $3.3 million for the third quarter of 2018.

Research and Development Expenses: Research and development (R&D) expenses for the third quarter of 2019 were $22.9 million, compared to $15.9 million for the third quarter of 2018. The increase in R&D expense was primarily due to an increase in clinical program costs, costs for manufacturing pharmaceutical active ingredients, and personnel costs due to additional headcount.

General and Administrative Expenses: General and administrative (G&A) expenses for the third quarter of 2019 were $11.1 million, compared to $4.9 million for the third quarter of 2018. The increase in G&A expense was largely due to an increase in compensation due to additional headcount, increase in pre-commercialization activities, increase in medical affairs costs, and an increase in professional fees and other administrative costs necessary to support our operations.

Net Loss: G1 reported a net loss of $32.4 million for the third quarter of 2019, compared to $19.9 million for the third quarter of 2018.

2019 Guidance: The company expects to end the year with $265-$270 million in cash and cash equivalents.

Anticipated Milestones

Begin rolling NDA submission for trilaciclib in SCLC in 4Q19, which the company expects to complete in 2Q20; submit Marketing Authorization Application to the European Medicines Agency in 2H20.

Initiate clinical trials of trilaciclib in colorectal cancer and TNBC in 2020.

Present additional data from the Phase 1b/2a clinical trial of lerociclib + Faslodex (fulvestrant) at the 2019 San Antonio Breast Cancer Symposium (SABCS) on December 11, 2019.

Identify dose and schedule of lerociclib and G1T48 for pivotal trials in ER+, HER2- breast cancer.

Webcast and Conference Call

The management team will host a webcast and conference call at 4:30 p.m. ET today to provide a corporate and financial update for the third quarter 2019 ended September 30, 2019. The live call may be accessed by dialing 866-763-6020 (domestic) or 210-874-7713 (international) and entering the conference code: 3374256. A live and archived webcast will be available on the Events & Presentations page of the company’s website: www.g1therapeutics.com. The webcast will be archived on the same page for 90 days following the event.

SITC 2019: Forbius to Report Phase 1a Oncology Clinical Data with AVID200, First-in-Class TGF-beta 1 & 3 Inhibitor, in Late-Breaking Poster Presentation

On November 5, 2019 Forbius, a clinical-stage protein engineering company that develops biotherapeutics to treat fibrosis and cancer, reported that it will present the first clinical data from its Phase 1a oncology trial with AVID200 in a late-breaking poster presentation at the Society for Immunotherapy of Cancer (SITC) (Free SITC Whitepaper) Annual Meeting 2019in National Harbor, Maryland (Nov. 6-10) (Press release, Forbius, NOV 5, 2019, View Source [SID1234550324]).

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AVID200 is a first-in-class, selective inhibitor of TGF-beta 1 & 3, the main pathogenic TGF-beta isoforms. AVID200 spares TGF-beta 2 for optimal safety.

The presentation will feature results from a Phase 1a monotherapy dose-escalation trial in patients with advanced solid tumor malignancies (AVID200-03, NCT03834662). The highest tested dose level was 30 mg/kg (1100 mg/m2)administered iv q3w, and the maximum tolerated dose (MTD) was not reached. Pharmacokinetics (PK), target engagement results as well as preliminary clinical efficacy will also be disclosed in the poster presentation.

Details of the Presentation:

Title:

AVID200, first-in-class TGF-beta 1 and beta 3 selective inhibitor: Results of a Phase 1 monotherapy dose escalation study in solid tumors and evidence of target engagement in patients (Abstract # P856)

Presenter:

Dr. Timothy Yap, Associate Professor, Department of Investigational Cancer Therapeutics, Division of Cancer Medicine, MD Anderson Cancer Center

Poster Viewing:

Friday, Nov. 8 / 12:30 – 2:00 p.m. and 6:30 – 8:00 p.m.

Saturday, Nov. 9 / 12:35 – 2:05 p.m. and 7:00 – 8:30 p.m.

Location:

Prince George’s Exhibition Halls AB

About TGF-beta 1 & 3

TGF-beta 1 & 3 are the main oncogenic TGF-beta isoforms expressed by many solid tumors. They are believed to play a major role in T-cell suppression, fibrosis and resistance to anti-PD-(L)1 therapies such as nivolumab (Opdivo) and pembrolizumab (Keytruda) (Chakravarthy, Nature Comm., 2018; Tauriello, Nature, 2018; Mariathasan, Nature, 2018).

About AVID200 and the AVID200-03 Trial (NCT03834662)

AVID200 is an isoform-selective and highly potent inhibitor of TGF-beta 1 & 3 undergoing Phase 1 clinical testing in solid tumors and fibrotic diseases. TGF-beta 1 & 3 are the principal disease-driving isoforms, while TGF-beta 2 is responsible for normal cardiac function and hematopoiesis.

AVID200’s selectivity for TGF-beta 1 & 3 was designed to achieve optimal efficacy while circumventing cardiac and other safety issues that have limited the applicability of earlier-generation, non-selective TGF-beta inhibitors. Therefore, AVID200 is positioned to be an effective and well-tolerated therapeutic in a variety of clinical settings, including in combination with anti-PD-(L)1 therapy.

AVID200-03 (NCT03834662) is an open label, multicenter, dose-escalation study to evaluate the safety, pharmacokinetics, pharmacodynamics and antitumor effects of AVID200 in patients with advanced or metastatic solid tumor malignancies.

A2 BIOTHERAPEUTICS EMERGES FROM STEALTH MODE WITH $57M SERIES A TO DEVELOP A PIPELINE OF SELECTIVE TUMOR CELL THERAPEUTICS

On November 5, 2019 A2 Biotherapeutics (www.a2bio.com), a biotechnology company developing innovative cell therapies for cancer patients, reported its official launch (Press release, A2 Biotherapeutics, NOV 5, 2019, View Source [SID1234550323]). The company, founded in 2018 by veteran biotechnology leaders, has a unique and potentially broad solution for the central problem of cancer research – targeted killing of tumor cells vs. normal cells. A2 Biotherapeutics employs a powerful discovery and optimization technology to identify antibody and T-cell receptor fragments that bind to targets that are technically challenging but definitively distinguish tumor cells. The target binder platform is seamlessly combined with proprietary cell engineering, modular vector designs, and novel quantitative assays to extend the reach of cell therapies into solid tumors.

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Investors in the $57 million Series A financing include The Column Group, Vida Ventures, Samsara BioCapital and Nextech Invest.

Tumor cells exhibit only subtle differences from normal cells, making it challenging to create cancer therapies that recognize and kill only tumor cells. A2 Biotherapeutics is overcoming this challenge, having already demonstrated targeted killing of tumor cells in its research. The company aims to beat cancer via tumor-specific targeting using a novel approach that considers targets gained or lost in cancer cells. "This approach has the promise of being utilized for multiple tumor types, providing solutions for many cancer patients. A2 Biotherapeutics has potent, highly selective binders that we combine into molecular constructs to integrate multiple signals and potentially provide a large therapeutic window," said Alexander Kamb, Co-Founder and chief scientific officer. Kamb was formerly SVP of Research at Amgen.

To unequivocally distinguish tumor cells from healthy cells, A2 Biotherapeutics is pursuing two target classes. First, the company addresses peptide MHC targets, which are generated inside the cell and presented on the cell surface, providing the potential to access intracellular targets gained in tumors (e.g., neo-antigens). The second target class is tackled through modular cell engineering to deploy a more powerful version of the mechanism used by natural killer cells. This latter approach addresses targets that are irreversibly lost in tumor cells via loss of heterozygosity.

To advance its product candidates, A2 Biotherapeutics has a fully integrated discovery, development and manufacturing organization in Agoura Hills, California with a team that already includes more than 40 staff. Efforts are led by an experienced management team aggregating the experience of ex-Amgen and ex-Kite Pharma drug and cell therapy developers. Scott Foraker, an executive with 25 years of experience at Amgen, was recently hired as president and chief executive officer. "Our unique approach to targeted killing of tumor cells has the potential to create breakthrough cancer therapies that we look forward to bringing to patients, particularly those in need of new approaches," said Foraker.

The company also has the support of distinguished academic experts in cell therapy and T-cell biology, including:

Mark Davis, PhD, Director, Stanford Institute for Immunity, Transplantation and Infection and The Burt And Marion Avery Family Professor of Microbiology and Immunology at Stanford University

Robert Schreiber, PhD, AM Bursky & JM Bursky Distinguished Professor of Pathology & Immunology at the Washington University School of Medicine in St. Louis

David Maloney, MD, PhD, Medical Director of Cellular Immunotherapy at the Immunotherapy Integrated Research Center (IIRC) and Leonard and Norma Klorfine Endowed Chair for Clinical Research at Fred Hutch

George Tsokos, MD, Professor of Medicine at the Harvard Medical School and Chief of Rheumatology at the Beth Israel Deaconess Medical Center in Boston

A2 Biotherapeutics currently has four programs in development with the first clinical candidate expected next year and is open to collaborations to rapidly advance these programs. The company’s plans also include innovations in manufacturing; it will launch an autologous cell manufacturing facility in 2020 with technology scalable for commercial launch. "A2 Biotherapeutics aspires to increase speed to patients and reduce cost of goods by leveraging its cell therapy manufacturing expertise and advances in technology," said Madhu Balachandran, former EVP of Operations at Amgen and member of A2 Biotherapeutics Board of Directors.

Fate Therapeutics Reports Third Quarter 2019 Financial Results and Highlights Operational Progress

On November 5, 2019 Fate Therapeutics, Inc. (NASDAQ: FATE), a clinical-stage biopharmaceutical company dedicated to the development of programmed cellular immunotherapies for cancer and immune disorders, reported business highlights and financial results for the third quarter ended September 30, 2019 (Press release, Fate Therapeutics, NOV 5, 2019, View Source [SID1234550322]).

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"We achieved several significant clinical milestones over the past three months including treating the first patients with FT516, the first-ever engineered iPSC-derived cellular immunotherapy, and securing FDA clearance to initiate clinical investigation of FT596, the first-ever cellular immunotherapy engineered to express three active anti-tumor modalities. We also successfully opened our new cGMP facility specifically designed to enable consistent, large-scale, and cost-effective manufacture of allogeneic NK cell and CAR-T cell products using clonal master iPSC lines as a starting cell source," said Scott Wolchko, President and Chief Executive Officer of Fate Therapeutics. "We look forward to the ASH (Free ASH Whitepaper) annual meeting in December, where we have had six abstracts accepted and will be sharing our first-in-human insights into the clinical safety and tolerability of FT500, the first-ever iPSC-derived cell therapy to be administered off-the-shelf in multiple doses over multiple cycles. With the completion of our recent common stock offering in September, we are well-positioned to generate clinical data across our iPSC-derived, cell-based cancer immunotherapy pipeline in 2020."

Clinical Programs

First-ever Patient Treatment with Engineered iPSC-derived Cell Product. In October 2019, two patients at the M Health Fairview University of Minnesota Medical Center were treated with FT516, the Company’s off-the-shelf natural killer (NK) cell cancer immunotherapy derived from a clonal master induced pluripotent stem cell (iPSC) line engineered to express a novel high-affinity, non-cleavable CD16 Fc receptor. FT516 is the first-ever cell product in the world derived from a genetically engineered pluripotent stem cell to be administered to patients. The first patient received FT516 in combination with rituximab for the treatment of diffuse large B-cell lymphoma, and the second patient received FT516 as a monotherapy for the treatment of acute myeloid leukemia.

Initiated Enrollment at 300M Cell Dose Level in FT500 ICI Combination Arm. The Company is conducting an open-label, multi-dose Phase 1 clinical trial of FT500, an off-the-shelf NK cell cancer immunotherapy derived from a clonal master iPSC line, for the treatment of advanced solid tumors. The dose-escalating stage of the Phase 1 study is designed to assess the safety and tolerability of administering up to six doses of FT500 as a monotherapy and in combination with immune checkpoint inhibitor (ICI) in an outpatient setting. In the monotherapy arm of the study, three patients have been treated at 100 million cells per dose and five patients have been treated at 300 million cells per dose, with no reported dose-limiting toxicities (DLTs) or FT500-related serious adverse events. Additionally, in the combination arm of the study in patients that have failed prior ICI therapy, three patients have been treated at 100 million cells per dose in combination with ICI therapy, with no reported DLTs or FT500-related serious adverse events. The Company is currently enrolling patients at 300 million cells per dose in the combination arm of the study.

Received FDA Clearance of IND Application for FT596. In September, the U.S. Food and Drug Administration (FDA) allowed the Company’s Investigational New Drug (IND) application for FT596, the Company’s first off-the-shelf chimeric antigen receptor (CAR) NK cell cancer immunotherapy, which is uniquely designed to engage multiple tumor-associated antigens expressed on cancer cells for best-in-class activity. FT596 is derived from a clonal master iPSC line engineered with three anti-tumor functional modalities: a proprietary CAR optimized for NK cell biology that targets the B-cell antigen CD19; a novel high-affinity, non-cleavable CD16 Fc receptor that is designed to augment antibody dependent cellular cytotoxicity (ADCC); and an IL-15 receptor fusion (IL-15RF), a potent cytokine complex that promotes NK cell activation without the need for systemic cytokine support. Study initiation is underway at multiple clinical sites for the first-in-human Phase 1 clinical trial of FT596 as a monotherapy, in combination with rituximab for the treatment of advanced B-cell lymphoma, and in combination with obinutuzumab for the treatment of chronic lymphocytic leukemia.

Completed Enrollment in Phase 2 PROTECT Study of ProTmune. In October, the Company completed enrollment in the randomized, controlled and double-blinded Phase 2 PROTECT study of ProTmune, the Company’s first-in-class, allogeneic hematopoietic cell graft for the prevention of acute graft-versus-host disease (GvHD) in patients undergoing hematopoietic cell transplantation (HCT) for the treatment of hematologic malignancies. ProTmune has been granted Orphan Drug and Fast Track Designations by the FDA, and Orphan Medicinal Product Designation by the European Commission.

Corporate Highlights

Opened State-of-the-Art cGMP Manufacturing Facility Dedicated to iPSC-derived Cell Therapies. In September 2019, the Company opened its current Good Manufacturing Practice (cGMP) manufacturing facility for the clinical production of its off-the-shelf NK cell and CAR T-cell product candidates. The Company’s facility, located in San Diego, California, is custom designed to use clonal master iPSC lines as a renewable cell source for the manufacture of off-the-shelf allogeneic cell products. The new state-of-the-art facility has been commissioned and qualified, the Company has been issued a drug manufacturing license by the State of California, Department of Health Services, Food and Drug Branch, and the Company has commenced manufacture of certain of its product candidates.

Foundational U.S. Patent Issued Covering iPSC-derived CAR T Cells. In August 2019, the U.S. Patent and Trademark Office issued U.S. Patent No. 10,370,452 covering compositions and uses of effector T cells expressing a CAR, where such T cells are derived from a pluripotent stem cell including an iPSC. The claims of this newly-issued patent are not restricted by the signaling domain of the CAR construct nor by the antigen to which the CAR targets and binds. The patent is expected to expire in 2034, and is owned by Memorial Sloan Kettering Cancer Center (MSK) and is licensed exclusively to Fate Therapeutics for all human therapeutic uses. The Company is currently conducting IND-enabling activities for FT819, its first off-the-shelf, iPSC-derived CAR T-cell product candidate, under its collaboration with MSK.

Completed $173 Million Common Stock Offering. In September 2019, the Company closed an underwritten public offering of 9.9 million shares of its common stock at a public offering price of $17.50 per share.

Third Quarter 2019 Financial Results

Cash & Short-term Investment Position: Cash, cash equivalents and short-term investments as of September 30, 2019 were $302.8 million, compared to $201.0 million as of December 31, 2018. The increase was driven primarily by $162.4 million in net cash proceeds received by the Company from its September 2019 public offering of common stock. These proceeds were offset by the Company’s use of cash to fund operating activities.

Total Revenue: Revenue was $2.4 million for the third quarter of 2019, compared to $1.0 million for the same period in 2019. Revenue for the third quarter of 2019 was derived from the Company’s collaboration with Ono Pharmaceutical.

R&D Expenses: Research and development expenses were $23.2 million for the third quarter of 2019, compared to $13.6 million for the same period in 2018. The increase in R&D expenses was attributable primarily to an increase in employee compensation, including share-based compensation, and in expenses associated with the clinical development and manufacture of the Company’s product candidates and the conduct of research activities including under the collaboration with Ono Pharmaceutical.

G&A Expenses: General and administrative expenses were $6.3 million for the third quarter of 2019, compared to $4.1 million for the same period in 2018. The increase in G&A expenses was attributable primarily to an increase in employee compensation, including share-based compensation.

Shares Outstanding: Common shares outstanding were 75.4 million as of September 30, 2019 and 64.7 million as of December 31, 2018. Preferred shares outstanding as of September 30, 2019 and December 31, 2018 were 2.8 million, each of which is convertible into five shares of common stock.

Today’s Conference Call and Webcast

The Company will conduct a conference call today, Tuesday, November 5, 2019 at 5:00 p.m. ET to review financial and operating results for the quarter ended September 30, 2019. In order to participate in the conference call, please dial 877-303-6235 (domestic) or 631-291-4837 (international) and refer to conference ID 4748666. The live webcast can be accessed under "Events & Presentations" in the Investors & Media section of the Company’s website at www.fatetherapeutics.com. The archived webcast will be available on the Company’s website beginning approximately two hours after the event.