Xilio Therapeutics Raises $95 Million in Series C Financing to Advance Potent Tumor-Selective Immuno-Oncology Pipeline

On February 24, 2021 Xilio Therapeutics, a biotechnology company developing potent, tumor-selective immunotherapies for patients with cancer, reported the successful closing of a $95 million Series C financing (Press release, Xilio Therapeutics, FEB 24, 2021, View Source [SID1234575554]). Proceeds from the financing will be used to advance Xilio’s lead therapeutic candidates, XTX202 (tumor-selective IL-2) and XTX101 (tumor-selective anti-CTLA4 mAb), into clinical trials . Investigational new drug (IND) applications for XTX202 and XTX101 are expected to be filed with the U.S. Food and Drug Administration (FDA) in 2021.

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The financing was led by Rock Springs Capital and was joined by Bain Capital Life Sciences, Deerfield Management Company and RA Capital Management, among other new investors. Xilio’s existing investors, including Atlas Venture, SV Health Investors, Takeda Ventures, RiverVest Venture Partners, and MRL Ventures Fund, also participated in the financing. Concurrent with the closing, Dave Gardner of Rock Springs Capital and Andrew Hack, M.D., Ph.D, of Bain Capital Life Sciences will join the Xilio Therapeutics Board of Directors.

"The support from Rock Springs Capital and this world-class group of investors is a testament to our unique tumor-selective technology and the expertise of the team we have built, all of whom share our vision to transform the lives of people living with cancer," said Rene Russo, Pharm.D., chief executive officer of Xilio Therapeutics. "This financing provides us with additional capital to execute our clinical development plans for XTX202 and XTX101, as well as to advance our cytokine pipeline, including our tumor-selective IL-12, XTX301."

"Xilio Therapeutics has made remarkable progress in building its promising pipeline of cancer therapies designed to unlock previously unattainable therapeutic potential," said Dave Gardner of Rock Springs Capital. "We are proud to partner with this exceptional team and look forward to seeing the results of their clinical research."

Xilio’s promising candidates, XTX202 (tumor-selective IL-2) and XTX101 (tumor-selective anti-CTLA4 mAb), have demonstrated significant anti-tumor effects with minimal peripheral effects in preclinical models, indicating the potential to achieve substantially higher levels of efficacy compared with currently approved IL-2 and anti-CTLA4 therapies. Tumor selectivity holds the promise of deepening patient responses to these validated therapies, as well as substantially increasing the number of patients who could benefit from them.

"While high dose aldesleukin (rhIL-2) has the potential for durable complete responses, it is only given to a small number of patients due to its life-threatening toxicity. Similarly, approved aCTLA4 therapy produces severe autoimmune toxicity, limiting potential benefit by preventing patients from receiving highly therapeutic doses or completing full courses of treatment," said Martin Huber, M.D., chief medical officer of Xilio Therapeutics. "Xilio’s proprietary technology allows us to mask the therapeutic (IL-2 or aCTLA4) until it is activated in the tumor micro-environment, enabling high dose drug delivery into the tumor to maximize the potential for efficacy."

Daiichi Sankyo and LYSA-LYSARC-CALYM Enter Research Collaboration for Valemetostat in Patients with Relapsed/Refractory B-Cell Lymphoma

On February 24, 2021 Daiichi Sankyo Company, Limited (hereafter, Daiichi Sankyo) and LYSA-LYSARC-CALYM reported that they have entered a strategic research collaboration to study valemetostat (DS-3201), Daiichi Sankyo’s potential first-in-class EZH1/2 dual inhibitor, in B-cell malignancies starting with a phase 2 study in patients with five subtypes of relapsed/refractory B-cell lymphoma (Press release, Daiichi Sankyo, FEB 24, 2021, https://www.businesswire.com/news/home/20210223006211/en/Daiichi-Sankyo-and-LYSA-LYSARC-CALYM-Enter-Research-Collaboration-for-Valemetostat-in-Patients-with-RelapsedRefractory-B-Cell-Lymphoma [SID1234575573]).

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The collaboration brings together Daiichi Sankyo’s innovative science and the multidisciplinary expertise of the Lymphoma Study Association (LYSA), the Lymphoma Academic Research Organization (LYSARC) and the CALYM research consortium to conduct clinical and translational research that will build upon the ongoing phase 1 study of valemetostat in patients with relapsed/refractory non-Hodgkin lymphoma.1

Lymphoma is a heterogenous disease with more than 90 different subtypes and while new treatment advances have improved outcomes for some patients, management of relapsed/refractory B-cell lymphoma remains a major challenge.2 There are currently no dual EZH1/2 directed therapies approved for cancer treatment.

"We are pleased to join forces with Europe’s largest lymphoma research organization to advance and strengthen the development of valemetostat as a potential novel precision medicine for patients with relapsed/refractory B-cell lymphoma," said Arnaud Lesegretain, Vice President, Global Oncology Development, Alpha Portfolio, Daiichi Sankyo. "LYSA-LYSARC-CALYM together with Daiichi Sankyo have designed a phase 2 study that will enroll patients based on disease subtype and biomarkers in order to further evaluate safety and efficacy, and we are planning a comprehensive translational research program to answer important scientific questions relating to clinical utility, optimal patient selection and mechanisms of resistance."

"We are very happy to engage our cooperative group in a collaboration with Daiichi Sankyo for this promising development program with valemetostat targeting relevant epigenetic factors EZH2 and EZH1 in B-cell lymphomas," said Franck Morschhauser, Professor of Hematology in Lille, France and President of LYSA-LYSARC. "We believe that our extensive multidisciplinary and international expertise will help advance the science behind the novel mechanism of action and we look forward to playing a role in bringing this potential new medicine to patients with lymphoma."

About the Collaboration

Under the agreement, LYSA-LYSARC will execute a multi-center, non-randomized, open-label phase 2 study to evaluate the safety and efficacy of valemetostat in six cohorts of patients with relapsed/refractory B-cell lymphoma.

The study will enroll patients with diffuse large B-cell lymphoma (with and without an EZH2 mutation) that has progressed on at least one prior treatment; follicular lymphoma (EZH2 mutant and EZH2 wild-type), mantle cell lymphoma, and marginal zone lymphoma/other indolent lymphomas that have progressed on two or more prior treatments; and Hodgkin lymphoma that has progressed on three or more prior treatments including checkpoint inhibitors.

The primary endpoint of the study is best overall response rate determined by investigator assessment. Secondary endpoints include complete response rate, progression-free survival, duration of response, time to response and safety measures including adverse events. Exploratory endpoints include overall survival and measures of biomarker expression and treatment response. Pharmacokinetic endpoints will also be assessed.

The study will include approximately 140 patients at 22 sites in France and Belgium and is anticipated to initiate in 2021.

About EZH1 and EZH2

EZH1 (enhancer of zeste homolog 1) and EZH2 (enhancer of zeste homolog 2) enzymes are part of polycomb protein complexes that act through histone methylation to regulate gene expression.3 EZH1 and EZH2 are recurrently highly expressed or mutated in many hematologic malignancies.4 Epigenetic dysregulation of the methylation process is associated with suppression of genes that regulate cancer cell growth and proliferation.4 Research shows that both EZH1 and EZH2 have a role in hematologic cancer progression and that simultaneous inhibition would be effective in targeting the cancers.5 There are no dual EZH1/2 directed therapies approved for treatment of cancer.

About Valemetostat

Valemetostat (DS-3201) is a potential first-in-class small molecule oral EZH1/2 dual inhibitor currently in clinical development in the Alpha portfolio of Daiichi Sankyo for several hematologic cancers. Valemetostat targets epigenetic regulation by inhibiting both the EZH1 and EZH2 enzymes. Valemetostat has displayed antitumor activity in various hematological malignancies in preclinical models.5,6

The development program of valemetostat includes a pivotal phase 2 trial in patients with relapsed or refractory adult T-cell leukemia/lymphoma (ATL) in Japan; a phase 1 study in patients with several types of non-Hodgkin lymphomas (NHL) including B-cell lymphoma, adult T-cell leukemia-lymphoma (ATL) and peripheral T-cell lymphoma (PTCL) in the U.S. and Japan; and a phase 1 study in patients with acute lymphocytic leukemia (ALL) and acute myeloid leukemia (AML) in the U.S.

In April 2019, valemetostat received SAKIGAKE Designation for the treatment of adult patients with relapsed or refractory PTCL by the Japan Ministry of Health, Labour and Welfare (MHLW).

Valemetostat is an investigational agent that has not been approved for any indication in any country. Safety and efficacy have not been established.

About B-Cell Lymphoma

Lymphoma is the most common type of blood cancer.7 There were more than 627,000 new cases of lymphoma diagnosed globally and more than 283,000 deaths from the disease in 2020.8

There are more than 90 different lymphoma subtypes, which occur in varying frequencies in different geographic regions around the world.7 Most lymphomas originate in B-cell lymphocytes, with the most common types being diffuse large B-cell lymphoma (about 33 percent), follicular lymphoma (about 20 percent), mantle cell lymphoma (about 5 percent) and marginal zone lymphoma (5 to 10 percent).9 Treatment recommendations and prognosis vary for different subtypes of B-cell lymphoma.10 New treatment advances have improved outcomes for some patients with certain types of B-cell lymphoma, but management of relapsed or refractory lymphoma remains a major challenge and new and novel treatments are needed.2

Orna Therapeutics Launches with over $100M Raised to Develop a New Class of Fully Engineered Circular RNA Therapies

On February 24, 2021 Orna Therapeutics, a biotechnology company dedicated to designing and delivering a new class of fully engineered circular RNA therapeutics (oRNAs), reported the completion of its $80 million Series A financing (Press release, OrnaTherapeutics, FEB 24, 2021, View Source [SID1234626172]). Founded on groundbreaking research from the Massachusetts Institute of Technology (MIT) and built by MPM Capital, Orna utilizes elegant molecular design and delivery technologies to overcome the limitations of linear mRNA therapeutics and unlock RNA’s full therapeutic potential to treat a wide range of diseases including cancer, autoimmune, and genetic disorders. Led by Thomas M. Barnes, Ph.D., as Chief Executive Officer, Orna’s team of skilled scientists, molecular engineers, and industry veterans leverage their broadly applicable oRNA platform to dramatically change and improve current approaches to treatment with the potential to make a difference in the lives of patients. The financing was co-led by MPM Capital, Taiho Ventures, and F2 Ventures, with participation from leading strategic investors: Kite, a Gilead Company, Bristol Myers Squibb, Astellas Venture Management, Novartis Institutes for Biomedical Research, and the PAGS Group.

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Orna’s engineered circular RNAs have several key advantages, including superior protein expression, simpler and more cost-effective manufacturing, and improved delivery. Unlike other RNA therapies, oRNA does not require the addition of cap or tail structures and does not require the use of modified nucleotides to address innate immune responses. In addition, oRNAs are designed to drive unparalleled protein production while resisting degradation inside the body.

"Our elegant solution to the circular RNA engineering problem has allowed us to reveal that oRNA is simply the better format for long coding RNA," said Dr. Barnes. "Furthermore, our initial combination of oRNAs with technology to deliver them to immune cells has paved the way to create groundbreaking new therapies to fundamentally change the way we treat cancer and autoimmune diseases."

The company was founded by (Robert) Alex Wesselhoeft, Ph.D., Raffaella Squilloni, M.B.A. and Professor Dan Anderson, Ph.D. (MIT), and was seeded and incubated by MPM Capital, with Shinichiro Fuse, Ph.D. serving as the interim CEO, and Brian Goodman, Ph.D. as head of Business Development. "We believe that oRNA is the future, and Orna has built the right team to execute on this vision," said Ansbert Gadicke, M.D., co-founder and Managing Director, MPM Capital, Board Chair of Orna Therapeutics. "Orna’s elegant and meticulously calculated approach has the potential to forever change the field of mRNA therapeutics."

The potential applications of Orna’s technology are far reaching. In particular, Orna believes it can apply its oRNA technology to potentially address the limitations of current immunotherapies by delivering chimeric antigen receptors (CARs) directly to patient’s immune cells within the body (in situ CAR therapy). The Series A financing will enable Orna to bring its initial programs to IND enablement, while continuing to advance its robust platform and build the capabilities to support Orna’s mission in its new office and laboratory space located in Cambridge, Massachusetts. Orna is supported by an experienced and seasoned Board of Directors and scientific advisors, including:

Daniel Anderson, Ph.D., Professor, MIT
Sakae Asanuma, CFA, MBA, President, Taiho Ventures
Thomas M. Barnes, Ph.D., CEO, Orna Therapeutics
Shinichiro Fuse, Ph.D., Managing Director, MPM Capital
Ansbert Gadicke, M.D. (chair), co-founder and Managing Director, MPM Capital
Morana Jovan-Embiricos, Managing Partner, F2 Ventures
Francesco Marincola, M.D., SVP and Global Head of Cell Therapy Research of Kite

Vincerx Pharma To Host Key Opinion Leader Webinar on VIP152 for the Treatment of Hematologic and Solid Tumors

On February 24, 2021 Vincerx Pharma, Inc. (Nasdaq: VINC), a biopharmaceutical company aspiring to address the unmet medical needs of patients with cancer through paradigm-shifting therapeutics, reported that it will be hosting a key opinion leader (KOL) meeting on VIP152 for the treatment of hematologic and solid tumors on Friday, March 5, 2021 at 12:00pm Eastern Time (Press release, Vincerx Pharma, FEB 24, 2021, View Source [SID1234575523]).

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The event will feature presentations by KOLs Ian Flinn, M.D., Ph.D., Director of Sarah Cannon Center for Blood Cancer, John Byrd, M.D., D. Warren Brown Chair of Leukemia Research, The Ohio State University Comprehensive Cancer Center, and Howard "Skip" Burris III, M.D., President and Chief Medical Officer of Sarah Cannon, who will discuss the CDK9 inhibitor landscape in hematologic and solid tumors. Drs. Flinn, Byrd, and Burris will be available to answer questions following the formal presentations.

Vincerx’s management team will also discuss the development plan for their lead product VIP152, a potent and highly selective CDK9 inhibitor optimized for intermittent intravenous treatment. VIP152’s differentiated profile for selectivity, potency, and durability has translated to early signals of clinical activity in Phase 1, notably in patient populations with high unmet medical needs including double-hit DLBCL. In addition, VIP152 has demonstrated on-target disruption of PTEFb function with reductions in kinase activity and mRNA levels of key oncogenes including MYC and MCL-1.

KOLs
Ian Flinn, M.D., Ph.D. is an internationally recognized clinical investigator whose research focuses on the development of new therapies for patients with lymphoma and chronic lymphocytic leukemia. This research includes first in human to phase 3 trials with novel approaches such as immune effector cell therapies, inhibitors of the B cell receptor pathway, and BCL-2 inhibitors amongst others. He is an author of approximately 200 articles in journals such as the New England Journal of Medicine, Lancet, Journal of Clinical Oncology and Blood. Dr Flinn joined Tennessee Oncology and Sarah Cannon in 2006 and serves as Director of Lymphoma Research. In his role, he oversees lymphoma research throughout Sarah Cannon and its affiliates. Dr. Flinn also serves as the director for the Sarah Cannon Center for Blood Cancer at Tennessee Oncology.

John C. Byrd, M.D., is an internationally known researcher and clinical specialist in leukemia and other hematologic malignancies at Ohio State University’s Comprehensive Cancer Center – James Cancer Hospital and Solove Research Institute, where he serves as Senior Advisor for Cancer Experimental Therapeutics. He is a Distinguished University Professor of Medicine and Medicinal Chemistry and holds the D. Warren Brown Chair in Leukemia Research. Dr. Byrd is also the Chief Medical Officer for BEAT AML. Dr. Byrd received his medical degree from the University of Arkansas for Medical Sciences. His education continued in hematology and oncology at Walter Reed Army Medical Center and Johns Hopkins University before moving to Columbus to join the faculty at Ohio State University. Dr. Byrd has over 575 publications in leukemia and experimental therapeutics research. He runs a highly translational laboratory focused on drug development in chronic lymphocytic leukemia and related lymphoproliferative disorders. He has been part of the successful development of multiple therapeutics in acute myeloid leukemia and chronic lymphocytic leukemia.

Howard A. "Skip" Burris III, M.D., FASCO, FACP serves as President and Chief Medical Officer of Sarah Cannon, as well as the Executive Director, Drug Development for Sarah Cannon Research Institute. He is an associate of Tennessee Oncology, PLLC, where he practices medical oncology. Dr. Burris’ clinical research career has focused on the development of new cancer agents with an emphasis on first-in-human therapies, having led the trials of many novel antibodies, small molecules, and chemotherapies now FDA approved. In 1997, he established in Nashville the first community-based early phase drug development program, which grew into the Sarah Cannon Research Institute. He has authored over 400 publications and 700 abstracts. Dr. Burris served as President of ASCO (Free ASCO Whitepaper) in 2019-2020 and is serving as Chair of the Board for the 2020-2021 term. He also currently serves on the Board of ASCO (Free ASCO Whitepaper)’s Conquer Cancer Foundation. Additionally, in 2014, Dr. Burris was selected by his peers as a Giant of Cancer Care for his achievements in drug development. Dr. Burris completed his undergraduate education at the United States Military Academy at West Point, his medical degree at the University of South Alabama, and his internal medicine residency and oncology fellowship at Brooke Army Medical Center in San Antonio. While in Texas, he also served as the Director of Clinical Research at The Institute for Drug Development of the Cancer Therapy and Research Center and The University of Texas Health Science Center. He attained the rank of lieutenant colonel in the US Army, and among his decorations, he was awarded a Meritorious Service Medal with oak leaf cluster for his service in Operation Joint Endeavor.

Sangamo Therapeutics Reports Recent Business Highlights and Fourth Quarter and Full Year 2020 Financial Results

On February 24, 2021 Sangamo Therapeutics, Inc. (Nasdaq: SGMO), a genomic medicine company, reported fourth quarter and full year 2020 financial results and recent business highlights (Press release, Sangamo Therapeutics, FEB 24, 2021, View Source [SID1234575539]).

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"We are very pleased with our execution and the progress we made in the challenging year of 2020 during the pandemic, where we advanced our hemophilia A product candidate into a Phase 3 clinical trial with Pfizer, dosed patients in our Phase 1/2 clinical study evaluating our wholly owned product candidate treating Fabry disease, entered into transformational neuroscience collaborations with Biogen and Novartis, brought in-house AAV manufacturing online in our Brisbane headquarters, and built a strong cash position," said Sandy Macrae, Chief Executive Officer of Sangamo. "In 2021, we will continue to build on our momentum with a focus on clinical execution and bringing our in-house cell therapy manufacturing facilities online."

Fourth Quarter Updates and Recent Business Highlights

Presented with collaborator Pfizer updated follow-up data from the Phase 1/2 Alta study of giroctocogene fitelparvovec, a gene therapy product candidate to treat hemophilia A, which was generally well-tolerated and demonstrated sustained Factor VIII activity levels in the therapeutic range through one year for the five patients in the highest dose cohort. The data were presented at the 62nd American Society for Hematology Annual Meeting.
Announced with Pfizer that the first participant has been dosed in the registrational Phase 3 AFFINE trial of giroctocogene fitelparvovec.
Completed dosing in February 2021 of the third patient in the Phase 1/2 STAAR study evaluating ST-920 gene therapy for Fabry disease. This is the first patient in the second dose cohort.
Brought in-house AAV manufacturing capabilities online in Sangamo’s Brisbane, California headquarters at the end of 2020.
Announced global collaboration with Novartis to develop and commercialize gene regulation therapies to treat three neurodevelopmental targets, including genes linked to autism spectrum disorder and intellectual disability.
Announced global collaboration with Biogen to develop and commercialize gene regulation therapies for Alzheimer’s, Parkinson’s, neuromuscular and other neurological diseases.
Fourth Quarter and Full Year 2020 Financial Results

Consolidated net loss for the fourth quarter ended December 31, 2020 was $40.7 million, or $0.29 per share, compared to net income of $4.5 million, or $0.04 per share, for the same period in 2019. For the year ended December 31, 2020, consolidated net loss was $121.1 million, or $0.90 per share, compared to consolidated net loss of $95.4 million, or $0.85 per share, for the year ended December 31, 2019.

Revenues

Revenues for the fourth quarter ended December 31, 2020 were $25.8 million, compared to $54.9 million for the same period in 2019. The decrease in revenue was due primarily to milestones achieved under our collaboration agreements in the fourth quarter of 2019, which included $25.0 million from Pfizer for the completion of the investigational new drug, or IND, transfer for giroctocogene fitelparvovec and $7.5 million from Sanofi for dosing of the first patient in our Phase 1/2 clinical study evaluating our BIVV003 product candidate to treat sickle cell disease.

Revenues were $118.2 million in 2020, compared to $102.4 million in 2019. The increase in revenues was primarily due to recognition of upfront license fees under the Biogen and Novartis collaboration agreements entered into in 2020. This increase was partially offset by a decrease in revenues from our giroctocogene fitelparvovec collaboration agreement with Pfizer following the IND transfer in December 2019.

Operating expenses

Three Months Ended December 31,

Year Ended December 31,

(In millions)
2020

2019

2020

2019

Research and development
$

52.4

$

38.3

$

180.6

$

145.9

General and administrative

16.8

15.1

67.1

61.7

Total operating expenses

69.2

53.4

247.7

207.6

Stock-based compensation expense

(6.6

)

(5.2

)

(25.7

)

(19.3

)

Non-GAAP operating expenses
$

62.6

$

48.2

$

222.0

$

188.3

Total operating expenses for the fourth quarter ended December 31, 2020 were $69.2 million compared to $53.4 million for the same period in 2019. Stock-based compensation expense for the fourth quarter ended December 31, 2020 was $6.6 million, compared to $5.2 million for the same period in 2019. Non-GAAP operating expenses, which exclude stock-based compensation expense, for the fourth quarter ended December 31, 2020 were $62.6 million, compared to $48.2 million for the same period in 2019.

Total operating expenses in 2020 were $247.7 million, compared to $207.6 million in 2019. Stock-based compensation expense in 2020 was $25.7 million, compared to $19.3 million in 2019. Non-GAAP total operating expenses, which exclude excluding stock-based compensation expense, were $222.0 million and $188.3 million in 2020 and 2019, respectively.

The increase in operating expenses in the full year and fourth quarter was due primarily to headcount growth and facilities expansion to support the advancement of our clinical trials and manufacturing capabilities. The full year and fourth quarter increase was partially offset by a decrease in travel and corporate costs arising from the COVID-19 pandemic.

Cash, cash equivalents and marketable securities

Cash, cash equivalents and marketable securities as of December 31, 2020 were $692.0 million, compared to $384.3 million as of December 31, 2019. The balance as of December 31, 2020 includes a $30.0 million milestone from Pfizer for the initiation of the AFFINE trial for giroctocogene fitelparvovec and a $5.0 million milestone from Pfizer for our C9ORF72 collaboration with Pfizer.

In August 2020, we entered into an Open Market Sale Agreement with Jefferies LLC providing for the sale of up to $150.0 million of our common stock from time to time in ‘at-the-market’ offerings under our shelf registration statement. Through February 19, 2021, we sold 1,034,762 shares of our common stock pursuant to this agreement for net proceeds of approximately $15.7 million.

Initial Financial Guidance for 2021

On a GAAP basis, we expect total operating expenses in the range of approximately $285 million to $305 million in 2021, which includes non-cash stock-based compensation expense.

We expect non-GAAP total operating expenses, excluding estimated non-cash stock-based compensation expense of approximately $30 million, in the range of approximately $255 million to $275 million.

Conference Call

Sangamo will host a conference call today, February 24, 2021, at 5:00 p.m. Eastern Time, which will be open to the public. The call will also be webcast with live Q&A and can be accessed via a link on the Sangamo Therapeutics website in the Investors and Media section under Events and Presentations.

The conference call dial-in numbers are (877) 377-7553 for domestic callers and (678) 894-3968 for international callers. The conference ID number for the call is 1795427. Participants may access the live webcast via a link on the Sangamo Therapeutics website in the Investors and Media section under Events and Presentations. A conference call replay will be available for one week following the conference call. The conference call replay numbers for domestic and international callers are (855) 859-2056 and (404) 537-3406, respectively. The conference ID number for the replay is 1795427.