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Atara Biotherapeutics Announces Third Quarter 2022 Financial Results and Operational Progress

EbvalloTM Positioned to be the First Allogeneic T-Cell Therapy Ever Approved Following CHMP Positive Opinion

New ATA188 Biomarker Imaging Data Show Less Brain Atrophy and Possible Remyelination in Patients Achieving Confirmed Disability Improvement in Progressive MS

Phase 1 Study of ATA2271 Enrollment Resumed

Conference Call and Webcast Today at 1:30 p.m. PST / 4:30 p.m. EST

Atara Biotherapeutics, Inc. (Nasdaq: ATRA), a leader in T-cell immunotherapy, leveraging its novel allogeneic EBV T-cell platform to develop transformative therapies for patients with cancer and autoimmune diseases, today reported financial results for the third quarter 2022, recent business highlights, and key upcoming catalysts.

“Receiving the positive CHMP opinion for EbvalloTM (tabelecleucel) positions our product to be the first-ever approved allogeneic off-the-shelf T-cell therapy and provides important validation for our EBV T-cell platform and portfolio,” said Pascal Touchon, President and Chief Executive Officer of Atara. “We continue to generate positive forward momentum across our programs, punctuated by compelling new biomarker imaging and long-term clinical data that further reinforce our belief in the transformative potential of ATA188.”

Tabelecleucel (tab-cel® or EbvalloTM) for EBV-Associated Ultra-Rare Cancers

  • Atara received a positive opinion from the European Medicines Agency’s (EMA) Committee for Medicinal Products for Human Use (CHMP) for EbvalloTM as a monotherapy for treatment of adult and pediatric patients two years of age and older with relapsed or refractory Epstein‑Barr virus positive post‑transplant lymphoproliferative disease (EBV+ PTLD)
    • With CHMP positive opinion, the European Commission’s (EC) potential approval of the EbvalloTM Marketing Authorization Application (MAA) is expected by the end of 2022
  • Atara recently held a meeting with the U.S. Food and Drug Administration (FDA) that culminated in clear guidance and agreement on specific chemistry, manufacturing, and controls (CMC) Module 3 requirements for potential biologics license application (BLA) submission
    • A new meeting is planned with the FDA to discuss and potentially align on clinical data package requirements to prepare for a pre-BLA meeting
  • Atara will present updated interim analysis and safety results of the Phase 3 ALLELE study in relapsed/refractory (r/r) EBV+ PTLD with additional patients and longer follow up at the 64th American Society of Hematology (ASH) Annual Meeting in December 2022
    • Consistent with the transformative potential of tab-cel in EBV+ PTLD, overall ORR was 51.2% (22/43, 95% CI: 35.5, 66.7), 50% (7/14, 95% CI: 23.0, 77.0) in HCT, and 51.7% (15/29, 95% CI: 32.5, 70.6) in SOT with median TTR of 1.0 month and median duration of response (DOR) of 23 months
    • Overall median OS was 18.4 months (95% CI: 6.9, NE), with patients who responded having longer survival versus non-responders
  • Additionally, Atara will present updated efficacy and safety data from two single-center, open-label studies and a multicenter expanded access program in patients with EBV+ leiomyosarcomas (EBV+ LMS), who have received at least one therapy at the ASH Annual Meeting
    • Clinical benefit rate (CR, PR, SD) was 77.8% (95% CI: 56.6, 96.2), with objective response rate of 22.2% (95% CI: 6.4, 47.6); the estimated median OS (95% CI) was 77.4 months (18.0, NE)
  • The safety profile of tab-cel remains consistent with previously reported data with no reports of tumor flare reaction, cytokine release syndrome, transmission of infectious diseases, graft-versus-host disease, or infusion reaction related to treatment
  • Atara continues to seek a partner for potential U.S. commercialization

ATA188 for Progressive Multiple Sclerosis (MS)

  • MS is a debilitating disease affecting millions, with limited treatment options and high unmet medical need in progressive forms
  • Atara presented new magnetic resonance imaging (MRI) biomarker imaging and open-label extension (OLE) clinical data from the Phase 1 study of ATA188 in progressive MS at the 2022 European Committee for Treatment and Research in Multiple Sclerosis (ECTRIMS) conference
    • New MRI biomarker imaging data suggest patients who achieved confirmed disability improvement (CDI) demonstrated significantly less brain atrophy over time and increased nMTR in unenhancing lesions. These data support that brain structural changes, including potential remyelination, may underlie durable CDI associated with ATA188
    • Updated results from the ongoing OLE with up to 46 months total follow up in patients achieving CDI demonstrate durability of improvement once achieved. Patients with stable disease, meaning no decline in EDSS, have maintained stability for up to four years
  • Based on enrollment in the Phase 2 EMBOLD study at the end of July, approximately 90 patients are planned to be included in the read out of the study primary endpoint of confirmed disability improvement of EDSS at 12 months. Communication of these data is planned to occur in October 2023

CAR T Programs

ATA2271 (Solid Tumors Over-Expressing Mesothelin)

  • The ongoing Phase 1, Memorial Sloan Kettering Cancer Center (MSK)-conducted, and investigator led clinical study of autologous mesothelin chimeric antigen receptor (CAR) T-cell therapy, ATA2271, has resumed after a voluntary pause in enrollment earlier this year
  • Details on the latest findings, including clinical and safety observations, will be presented at a session titled, “Building on CAR-T Experience in Mesothelioma,” at ESMO Immuno-Oncology on December 7, 2022

ATA3219 (B-cell Malignancies)

  • ATA3219 is a potential best in class off-the-shelf allogeneic CD19 program using an optimized approach to address high unmet medical need. Leveraging our next-generation 1XX CAR co-stimulatory signaling domain and allogeneic EBV T-cell platform, ATA3219 does not require TCR or human leukocyte antigen (HLA) gene editing
  • The ATA3219 manufacturing process optimization is progressing to ensure appropriate scale-up. Atara anticipates filing an IND in Q2 2023 following completion of process optimization and manufacturing runs in the GMP manufacturing suites of our strategic manufacturing partner, FUJIFILM Diosynth Biotechnologies

Third Quarter 2022 Financial Results

  • Cash, cash equivalents and short-term investments as of September 30, 2022 totaled $265.4 million, as compared to $331.3 million as of June 30, 2022
  • In September 2022, Atara announced an additional near-term milestone payment under an updated tabelecleucel commercialization agreement with Pierre Fabre. Under this agreement, Atara will receive an additional $30 million upon EC approval and subsequent filing of the MAA transfer to Pierre Fabre
  • Atara believes that its cash and investments as of September 30, 2022, together with potential cash inflows from Pierre Fabre and the expected reductions in operating cash burn, will be sufficient to fund the Company’s planned operations into Q1 2024
  • Net cash used in operating activities was $65.1 million for the third quarter 2022, as compared to $59.0 million for the same period in 2021
  • Atara reported a net loss of $84.1 million, or $0.82 per share, for the third quarter 2022, as compared to a net loss of $84.7 million, or $0.90 per share, for the same period in 2021
  • License and collaboration revenue was $4.5 million for the third quarter 2022, primarily consisting of revenue recognized due to the termination of the Bayer agreements, as compared to $5.4 million for the same period in 2021.
  • Total operating expenses include non-cash expenses of $15.4 million for the third quarter 2022, as compared to $16.0 million for the same period in 2021
  • Research and development expenses were $70.2 million for the third quarter 2022, as compared to $70.3 million for the same period in 2021
    • Research and development expenses include $8.0 million of non-cash stock-based compensation expenses for the third quarter 2022 as compared to $7.8 million for the same period in 2021
  • General and administrative expenses were $18.9 million for the third quarter 2022, as compared to $19.8 million for the same period in 2021
    • General and administrative expenses include $6.0 million of non-cash stock-based compensation expenses for the third quarter 2022, as compared to $5.9 million for the same period in 2021

Conference Call and Webcast Details

Atara will host a live conference call and webcast today, Tuesday, November 8, 2022, at 4:30 p.m. EDT to discuss the Company’s financial results and recent operational highlights. Analysts and investors can participate in the conference call by dialing 877-407-8291 for domestic callers and 201-689-8345 for international callers, using the conference ID 13733805. A live audio webcast can be accessed by visiting the Investors & Media – News & Events section of atarabio.com. An archived replay will be available on the Company's website for 30 days following the live webcast.

About Atara Biotherapeutics, Inc.

Atara Biotherapeutics, Inc. (@Atarabio) is a pioneer in T-cell immunotherapy leveraging its novel allogeneic EBV T-cell platform to develop transformative therapies for patients with serious diseases including solid tumors, hematologic cancers and autoimmune disease. With our lead program receiving a CHMP positive opinion for a marketing authorization in Europe, Atara is the most advanced allogeneic T-cell immunotherapy company and intends to rapidly deliver off-the-shelf treatments to patients with high unmet medical need. Our platform leverages the unique biology of EBV T cells and has the capability to treat a wide range of EBV-associated diseases, or other serious diseases through incorporation of engineered CARs (chimeric antigen receptors) or TCRs (T-cell receptors). Atara is applying this one platform, which does not require TCR or HLA gene editing, to create a robust pipeline including: tab-cel in Phase 3 development for Epstein-Barr virus-driven post-transplant lymphoproliferative disease (EBV+ PTLD) and other EBV-driven diseases; ATA188, a T-cell immunotherapy targeting EBV antigens as a potential treatment for multiple sclerosis; and multiple next-generation chimeric antigen receptor T-cell (CAR-T) immunotherapies for both solid tumors and hematologic malignancies. Improving patients’ lives is our mission and we will never stop working to bring transformative therapies to those in need. Atara is headquartered in Southern California. For additional information about the company, please visit atarabio.com and follow us on Twitter and LinkedIn.

Forward-Looking Statements

This press release contains or may imply "forward-looking statements" within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934. For example, forward-looking statements include statements regarding: (1) the Company’s corporate strategy, including seeking a commercial partner for tab-cel in the U.S; (2) the potential benefits, safety and efficacy of tab-cel®; the timing and progress of tab-cel®, including (i) data and analyses relating to tab-cel®, including from the ALLELE study; (ii) tab-cel® clinical trials, and the occurrence, timing and outcome of Atara’s interactions and discussions with the FDA regarding a BLA submission for tab-cel ®, (iii) the potential submission of the BLA for tab-cel®, and (iv) the potential approval of the MAA for EbvalloTM (tabelecleucel) by the EC and the timing thereof; (3) the potential benefits, safety and efficacy of ATA188; (4) the timing and progress of ATA188, including (i) data and analyses from ATA188 OLE study; (ii) ATA188 clinical trials, (iii) data and analyses from the EMBOLD study and the timing of when such data will be communicated; and (iv) Atara’s ability to successfully advance the development of ATA188; (5) the timing and progress of Atara’s CAR T programs, and the safety and efficacy of product candidates emerging from such programs, including ATA3219 and the ATA2271 clinical trial being conducted by MSK; and (6) Atara’s cash runway. Because such statements deal with future events and are based on Atara’s current expectations, they are subject to various risks and uncertainties and actual results, performance or achievements of Atara could differ materially from those described in or implied by the statements in this press release. These forward-looking statements are subject to risks and uncertainties, including, without limitation, risks and uncertainties associated with the costly and time-consuming pharmaceutical product development process and the uncertainty of clinical success; the ongoing COVID-19 pandemic and the war in Ukraine, which may significantly impact (i) our business, research, clinical development plans and operations, including our operations in Southern California and Denver and at our clinical trial sites, as well as the business or operations of our third-party manufacturer, contract research organizations or other third parties with whom we conduct business, (ii) our ability to access capital, and (iii) the value of our common stock; the sufficiency of Atara’s cash resources and need for additional capital; and other risks and uncertainties affecting Atara’s and its development programs, including those discussed in Atara’s filings with the Securities and Exchange Commission (SEC), including in the “Risk Factors” and “Management’s Discussion and Analysis of Financial Condition and Results of Operations” sections of the Company’s most recently filed periodic reports on Form 10-K and Form 10-Q and subsequent filings and in the documents incorporated by reference therein. Except as otherwise required by law, Atara disclaims any intention or obligation to update or revise any forward-looking statements, which speak only as of the date hereof, whether as a result of new information, future events or circumstances or otherwise.

Financials:

ATARA BIOTHERAPEUTICS, INC.

Condensed Consolidated Balance Sheets

(Unaudited)

(In thousands, except per share amounts)

 

 

 

September 30,

 

December 31,

 

 

2022

 

2021

Assets

 

 

 

 

 

 

Current assets:

 

 

 

 

 

 

Cash and cash equivalents

 

$

65,114

 

 

$

106,084

 

Short-term investments

 

 

200,290

 

 

 

264,984

 

Restricted cash

 

 

1,346

 

 

 

194

 

Accounts receivable

 

 

249

 

 

 

986

 

Prepaid expenses and other current assets

 

 

16,047

 

 

 

12,373

 

Total current assets

 

 

283,046

 

 

 

384,621

 

Property and equipment, net

 

 

7,270

 

 

 

53,780

 

Operating lease assets

 

 

70,834

 

 

 

26,159

 

Restricted cash - long-term

 

 

 

 

 

1,200

 

Other assets

 

 

7,166

 

 

 

2,367

 

Total assets

 

$

368,316

 

 

$

468,127

 

 

 

 

 

 

 

 

Liabilities and stockholders’ equity

 

 

 

 

 

 

Current liabilities:

 

 

 

 

 

 

Accounts payable

 

$

11,296

 

 

$

17,368

 

Accrued compensation

 

 

17,605

 

 

 

25,150

 

Accrued research and development expenses

 

 

17,868

 

 

 

13,451

 

Deferred revenue

 

 

2,662

 

 

 

40,760

 

Other current liabilities

 

 

22,813

 

 

 

9,057

 

Total current liabilities

 

 

72,244

 

 

 

105,786

 

Deferred revenue - long-term

 

 

42,338

 

 

 

55,708

 

Operating lease liabilities - long-term

 

 

61,072

 

 

 

25,518

 

Other long-term liabilities

 

 

5,549

 

 

 

1,501

 

Total liabilities

 

 

181,203

 

 

 

188,513

 

 

 

 

 

 

 

 

Stockholders’ equity:

 

 

 

 

 

 

Common stock—$0.0001 par value, 500,000 shares authorized as of September 30, 2022 and December 31, 2021; 94,879 and 91,671 shares issued and outstanding as of September 30, 2022 and December 31, 2021, respectively

 

 

9

 

 

 

9

 

Additional paid-in capital

 

 

1,808,515

 

 

 

1,744,695

 

Accumulated other comprehensive (loss) income

 

 

(2,959

)

 

 

(368

)

Accumulated deficit

 

 

(1,618,452

)

 

 

(1,464,722

)

Total stockholders’ equity

 

 

187,113

 

 

 

279,614

 

Total liabilities and stockholders’ equity

 

$

368,316

 

 

$

468,127

 

ATARA BIOTHERAPEUTICS, INC.

Condensed Consolidated Statements of Operations and Comprehensive Loss

(Unaudited)

(In thousands, except per share amounts)

 

 

 

Three Months Endeds

S
eptember 30,

 

Nine Months Ended

September 30,

 

 

2022

 

2021

 

2022

 

2021

License and collaboration revenue

 

$

4,459

 

 

$

5,370

 

 

$

63,352

 

 

$

12,792

 

Operating expenses:

 

 

 

 

 

 

 

 

 

 

 

 

 

     

Research and development

 

 

70,157

 

 

 

70,333

 

 

 

210,018

 

 

 

202,867

 

General and administrative

 

 

18,924

 

 

 

19,849

 

 

 

58,308

 

 

 

56,984

 

Total operating expenses

 

 

89,081

 

 

 

90,182

 

 

 

268,326

 

 

 

259,851

 

Loss from operations

 

 

(84,622

)

 

 

(84,812

)

 

 

(204,974

)

 

 

(247,059

)

Other income (expense), net:

 

 

 

 

 

 

 

 

 

 

 

 

 

     

Gain on sale of ATOM Facility

 

 

 

 

 

 

 

 

50,237

 

 

 

 

Interest and other income (expense), net

 

 

541

 

 

 

148

 

 

 

1,017

 

 

 

283

 

Total other income (expense), net

 

 

541

 

 

 

148

 

 

 

51,254

 

 

 

283

 

Loss before provision for income taxes

 

 

(84,081

)

 

 

(84,664

)

 

 

(153,720

)

 

 

(246,776

)

Provision for income taxes

 

 

10

 

 

 

 

 

 

10

 

 

 

16

 

Net loss

 

$

(84,091

)

 

$

(84,664

)

 

$

(153,730

)

 

$

(246,792

)

Other comprehensive gain (loss):

 

 

 

 

 

 

 

 

 

 

 

 

 

     

Unrealized gain (loss) on available-for-sale securities

 

 

(341

)

 

 

(38

)

 

 

(2,591

)

 

 

(272

)

Comprehensive loss

 

$

(84,432

)

 

$

(84,702

)

 

$

(156,321

)

 

$

(247,064

)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

     

Basic and diluted loss per common share

 

$

(0.82

)

 

$

(0.90

)

 

$

(1.51

)

 

$

(2.67

)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

     

Basic and diluted weighted-average shares outstanding

 

 

102,423

 

 

 

93,602

 

 

 

101,590

 

 

 

92,411

 

 

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