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Caribou Biosciences Reports Fourth Quarter and Full Year 2022 Financial Results and Provides Business Update

-- CB-010 ANTLER Phase 1 trial in r/r B-NHL ongoing with update planned for H2 2023 --

-- CB-011 CaMMouflage Phase 1 trial in r/r MM recruiting patients at dose level 1 --

-- CB-012 IND-enabling studies initiated; IND submission in r/r AML planned for H2 2023 --

-- $317.0 million in cash, cash equivalents, and marketable securities as of December 31, 2022; cash runway to fund the current operating plan into 2025 --

BERKELEY, Calif., March 09, 2023 (GLOBE NEWSWIRE) -- Caribou Biosciences, Inc. (Nasdaq: CRBU), a leading clinical-stage CRISPR genome-editing biopharmaceutical company, today reported financial results for the fourth quarter and full year 2022 and reviewed recent pipeline progress.

“We successfully demonstrated the potential of our chRDNA genome-editing technology with promising clinical data from CB-010, our lead allogeneic cell therapy,” said Rachel Haurwitz, PhD, Caribou’s president and chief executive officer. “The initial dose level of CB-010 demonstrated 6-month complete response rates that have the potential to rival the responses seen with approved autologous CAR-T cell therapies. We are excited that the FDA granted the CB-010 program RMAT and Fast Track designations last year. Our team drove additional pipeline progress with an IND clearance for CB-011, enabling us to activate clinical sites for our CaMMouflage Phase 1 trial. In 2023, Caribou plans to maintain this momentum by advancing two ongoing clinical trials for our off-the-shelf cell therapies in patients with hematologic malignancies and preparing an IND submission for our third program, CB-012.”

Accomplishments and Highlights

Pipeline and Technology

  • CB-010: Caribou reported promising data at dose level 1 (40x106 CAR-T cells) from its ongoing ANTLER Phase 1 clinical trial of CB-010 in patients with relapsed or refractory B cell non-Hodgkin lymphoma (r/r B-NHL).
    • Following a single infusion of CB-010 at dose level 1, all 6 patients in cohort 1 achieved complete responses as their best response. 3 of 6 patients maintained complete responses at 6 months, with 2 of 6 maintaining complete responses at 12 months. Caribou plans to provide an update from the ongoing ANTLER Phase 1 trial for CB-010 in H2 2023.
    • Clinical data presentations are available on Caribou’s website under Scientific Publications.
    • Following demonstration of an encouraging safety profile at dose level 2 (80x106 CAR-T cells), with no dose-limiting toxicities (DLTs) in the 3 patients treated, Caribou continues to enroll patients at dose level 3 (120x106 CAR-T cells).
    • The U.S. Food and Drug Administration (FDA) has granted CB-010 Regenerative Medicine Advanced Therapy (RMAT), Fast Track, and Orphan Drug designations. These designations provide important benefits in the drug development process and are designed to facilitate and expedite development and regulatory review, including providing eligibility for priority and rolling reviews and accelerated approval, if relevant criteria are satisfied.
    • CB-010 is the first allogeneic anti-CD19 CAR-T cell therapy in the clinic, to Caribou’s knowledge, with a PD-1 knockout (KO), a genome-editing strategy designed to improve antitumor activity by limiting premature CAR-T cell exhaustion.
    • Additional information on the ANTLER trial (NCT04637763) can be found at clinicaltrials.gov.
  • CB-011: Caribou recently activated clinical sites for the recruitment of patients at dose level 1 (50x106 CAR-T cells) of CB-011 in the CaMMouflage Phase 1 trial for relapsed or refractory multiple myeloma (r/r MM).
    • CB-011 is the first allogeneic CAR-T cell therapy in the clinic, to Caribou’s knowledge, that is engineered to improve antitumor activity through an immune cloaking strategy with a B2M KO and insertion of a B2M–HLA-E fusion protein to blunt immune-mediated rejection.
    • Preclinical data for CB-011 were presented in a poster at the 2023 Tandem Meeting: Transplantation & Cellular Therapy Meetings of ASTCT and CIBMTR, February 15-19, 2023, in Orlando, Florida. The poster presentation is available on Caribou’s website under Scientific Publications.
    • Additional information on the CaMMouflage trial (NCT05722418) can be found at clinicaltrials.gov.
  • CB-012: Caribou has initiated IND-enabling studies for CB-012, an allogeneic anti-CLL-1 CAR-T cell therapy, to support a planned IND application submission for relapsed or refractory acute myeloid leukemia (r/r AML).
    • CB-012 is the first allogeneic CAR-T cell therapy, to Caribou’s knowledge, with both checkpoint disruption, through a PD-1 KO, and immune cloaking, through a B2M KO and B2M–HLA-E fusion protein insertion; both armoring strategies are designed to improve antitumor activity. CB-012 is engineered with 5 genome edits, enabled by Caribou’s next-generation CRISPR technology platform, which uses Cas12a chRDNA genome editing to significantly improve the specificity of genome edits.
    • In preclinical AML models, CB-012 significantly reduced tumor burden and increased overall survival compared to controls.
  • CB-020: Caribou’s first induced pluripotent stem cell (iPSC)-derived allogeneic CAR-NK cell therapy, CB-020, is designed to target solid tumors expressing the tumor antigen ROR1.
    • Preclinical data supporting the selection of the ROR1 CAR construct and armoring strategies for the company’s CAR-NK cell platform were presented at the 12th American Association for Cancer Research and Japanese Cancer Association (AACR-JCA) Joint Conference in December 2022. The poster presentation is available on Caribou’s website under Scientific Publications.

Anticipated 2023 Milestones

  • CB-010: Caribou plans to provide an update from the ongoing ANTLER Phase 1 trial for CB-010 in H2 2023.
  • CB-011: Caribou recently activated clinical sites for the recruitment of patients at dose level 1 and plans to provide an update on the clearance of dose levels as appropriate from the CaMMouflage Phase 1 trial for CB-011.
  • CB-012: Caribou plans to submit an IND application for CB-012 in H2 2023.

Upcoming Investor Conferences

  • Caribou management plans to participate in the following investor conferences:
    • March 15: Oppenheimer’s 33rd Annual Healthcare Investor Conference, virtual
    • May 9-11: BofA Securities 2023 Healthcare Conference, Las Vegas

Fourth Quarter and Full Year 2022 Financial Results

Cash, cash equivalents, and marketable securities: Caribou had $317.0 million in cash, cash equivalents, and marketable securities as of December 31, 2022, compared to $413.5 million as of December 31, 2021. Caribou expects these cash, cash equivalents, and marketable securities will be sufficient to fund its current operating plan into 2025.

Licensing and collaboration revenue: Revenue from Caribou’s licensing and collaboration agreements was $3.7 million for the three months ended December 31, 2022 and $13.9 million for the full year 2022, compared to $2.6 and $9.6 million, respectively, for the same periods in 2021. The increases were primarily due to revenue recognized under the AbbVie Agreement.

R&D expenses: Research and development expenses were $25.7 million for the three months ended December 31, 2022 and $82.2 million for the full year 2022, compared to $15.1 and $52.3 million, respectively, for the same periods in 2021. The increases were primarily due to costs to advance pipeline programs; increased headcount, including stock-based compensation; facilities and other allocated expenses; and increased external manufacturing and clinical activities.

G&A expenses: General and administrative expenses were $8.5 million for the three months ended December 31, 2022 and $38.0 million for the full year 2022, compared to $7.9 and $24.3 million, respectively, for the same periods in 2021. The increases were primarily due to increased headcount, including stock-based compensation; legal, accounting, insurance, and other expenses necessary to support the growth and operation of a clinical-stage public company; and facilities and other allocated expenses.

Net loss: Caribou reported a net loss of $27.0 million for the three months ended December 31, 2022 and $99.4 million for the full year 2022, compared to $18.5 and $66.9 million, respectively, for the same periods in 2021.

About Caribou’s Novel Next-Generation CRISPR Platform
CRISPR genome editing uses easily designed, modular biological tools to make DNA changes in living cells. There are two basic components of Class 2 CRISPR systems: the nuclease protein that cuts DNA and the RNA molecule(s) that guide the nuclease to generate a site-specific, double-stranded break, leading to an edit at the targeted genomic site. CRISPR systems are capable of editing unintended genomic sites, known as off-target editing, which may lead to harmful effects on cellular function and phenotype. In response to this challenge, Caribou has developed CRISPR hybrid RNA-DNA guides (chRDNAs; pronounced “chardonnays”) that direct substantially more precise genome editing compared to all-RNA guides. Caribou is deploying the power of its Cas12a chRDNA technology to carry out high efficiency multiple edits, including multiplex gene insertions, to develop CRISPR-edited therapies.

About Caribou Biosciences, Inc.
Caribou Biosciences is a clinical-stage CRISPR genome-editing biopharmaceutical company dedicated to developing transformative therapies for patients with devastating diseases. The company’s genome-editing platform, including its proprietary Cas12a chRDNA technology, enables superior precision to develop cell therapies that are armored to potentially improve antitumor activity. Caribou is advancing a pipeline of off-the-shelf cell therapies from its CAR-T and CAR-NK platforms as readily available treatments for patients with hematologic malignancies and solid tumors.

Follow us @CaribouBio and visit www.cariboubio.com.

“Caribou Biosciences” and the Caribou logo are registered trademarks of Caribou Biosciences, Inc.

Forward-Looking Statements
This press release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. These forward-looking statements include, without limitation, statements related to Caribou’s strategy, plans, and objectives, and expectations regarding its clinical and preclinical development programs, including its expectations relating to the timing of updates from its ANTLER Phase 1 clinical trial for CB-010 as well as the status and updates from its CaMMouflage Phase 1 clinical trial for CB-011, expectations about product developments in 2023, and the submission of an IND application for CB-012. Management believes that these forward-looking statements are reasonable as and when made. However, such forward-looking statements are subject to risks and uncertainties, and actual results may differ materially from any future results expressed or implied by the forward-looking statements. Risks and uncertainties include, without limitation, risks inherent in the development of cell therapy products; uncertainties related to the initiation, cost, timing, progress, and results of Caribou’s current and future research and development programs, preclinical studies, and clinical trials; and the risk that initial or interim clinical trial data will not ultimately be predictive of the safety and efficacy of Caribou’s product candidates or that clinical outcomes may differ as more patient data becomes available; the risk that preclinical study results we observed will not be borne out in human patients; as well as other risk factors described from time to time in Caribou’s filings with the Securities and Exchange Commission, including its Annual Report on Form 10-K for the year ended December 31, 2022 and subsequent filings. In light of the significant uncertainties in these forward-looking statements, you should not rely upon forward-looking statements as predictions of future events. Except as required by law, Caribou undertakes no obligation to update publicly any forward-looking statements for any reason.


Caribou Biosciences, Inc.
Condensed Consolidated Balance Sheet Data
(in thousands)
(unaudited)   

 December 31,
2022
 December 31,
2021
Cash, cash equivalents, and marketable securities$317,036  $413,508 
Total assets 373,765   442,356 
Total liabilities 72,894   54,531 
Total stockholders' equity 300,871   387,825 
Total liabilities and stockholders' equity$373,765  $442,356 

 

 

Caribou Biosciences, Inc.
Condensed Consolidated Statement of Operations
(in thousands, except share and per share data)
(unaudited)

 Three Months Ended
December 31,
 Year Ended
December 31,
  2022   2021   2022   2021 
Licensing and collaboration revenue$3,692  $2,559  $13,851  $9,598 
Operating expenses:       
Research and development 25,736   15,111   82,230   52,255 
General and administrative 8,534   7,853   38,020   24,322 
Total operating expenses 34,270   22,964   120,250   76,577 
Loss from operations (30,578)  (20,405)  (106,399)  (66,979)
Other income (expense):       
Change in fair value of equity securities (60)     (133)   
Change in fair value of the MSKCC success payments liability 1,388   2,158   2,429   (1,426)
Gain on extinguishment of PPP Loan          1,584 
Other income, net 2,331   89   4,752   219 
Total other income (expense) 3,659   2,247   7,048   377 
Net loss before provision for income taxes$(26,919) $(18,158) $(99,351) $(66,602)
Provision for income taxes 70   321   70   321 
Net loss$(26,989) $(18,479) $(99,421) $(66,923)
Other comprehensive loss:       
Net unrealized loss on available-for-sale marketable securities 517   (135)  (1,383)  (135)
Net comprehensive loss$(26,472) $(18,614) $(100,804) $(67,058)
Net loss per share, basic and diluted$(0.44) $(0.31) $(1.64) $(2.11)
Weighted-average common shares outstanding, basic and diluted 61,001,150   60,180,759   60,801,133   31,663,243 

 

Caribou Biosciences Contacts:

Investors:
Amy Figueroa, CFA
afigueroa@cariboubio.com

Media:
Peggy Vorwald, PhD
pvorwald@cariboubio.com


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