8-K
false 0001671858 0001671858 2021-11-10 2021-11-10

 

 

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

 

 

FORM 8-K

 

 

CURRENT REPORT

Pursuant to Section 13 or 15(d)

of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): November 10, 2021

 

 

Silverback Therapeutics, Inc.

(Exact name of registrant as specified in its charter)

 

 

 

Delaware   001-39756   81-1489190
(State or other jurisdiction
of incorporation)
  (Commission
File Number)
  (IRS Employer
Identification No.)

 

500 Fairview Ave N, Suite 600
Seattle, Washington
  98109
(Address of principal executive offices)   (Zip Code)

Registrant’s telephone number, including area code: (206) 456-2900

N/A

(Former name or former address, if changed since last report.)

 

 

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

 

Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

 

Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

 

Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

 

Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

 

Title of each class

 

Trading
Symbol(s)

 

Name of each exchange
on which registered

Common Stock, $0.0001 par value per share   SBTX   The Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.

 

 

 


Item 2.02

Results of Operations and Financial Condition.

On November 10, 2021, Silverback Therapeutics, Inc. (the “Company”) issued a press release announcing its financial results for the third quarter ended September 30, 2021. A copy of the press release is attached hereto as Exhibit 99.1.

The information in this Item and the exhibit attached hereto are being furnished and shall not be deemed “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall they be deemed incorporated by reference into any filing under the Exchange Act or the Securities Act of 1933, as amended, whether filed before or after the date hereof and regardless of any general incorporation language in such filing.

 

Item 9.01

Financial Statements and Exhibits.

(d) Exhibits.

 

Exhibit
No.
  

Description

99.1    Press Release of Silverback Therapeutics, Inc., dated November 10, 2021.
104    Cover Page Interactive Data File (embedded within the Inline XBRL document).


SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

 

SILVERBACK THERAPEUTICS, INC.
By:  

/s/ Laura Shawver, Ph.D.

 

Laura Shawver, Ph.D.

Chief Executive Officer

Dated: November 10, 2021

EX-99.1

Exhibit 99.1

 

LOGO

Silverback Therapeutics Reports Third Quarter 2021 Financial Results and Provides Business Update

SEATTLE – November 10, 2021 Silverback Therapeutics, Inc. (Nasdaq: SBTX) (“Silverback”), a clinical-stage biopharmaceutical company leveraging its proprietary ImmunoTAC technology platform to develop systemically delivered, tissue targeted therapeutics for the treatment of cancer, chronic viral infections, and other serious diseases, today reported financial results for the third quarter ended September 30, 2021 and provided a business update.

“In the third quarter, we provided our first interim clinical update for the dose escalation arms of the SBT6050-101 trial, establishing proof-of-mechanism for SBT6050 as evidenced by the activation of the innate and adaptive immune system in patients,” said Laura Shawver, Ph.D., chief executive officer of Silverback. “In a short period of time, we have accumulated a robust clinical data set that has informed our development strategy. We are focused on advancing SBT6050 in patients with HER2-expressing cancers such as gastroesophageal and non-small cell lung, in combination with agents that we believe will maximize the therapeutic potential of our first-in-class TLR8 agonist conjugate. We also look forward to continuing to advance our pipeline, including SBT6290 for patients with bladder, triple negative breast, non-small cell lung, and head & neck cancers, and SBT8230 for patients with chronic hepatitis B virus.”

Recent Business Updates:

SBT6050 (HER2-TL8 ImmunoTAC)

 

   

Interim clinical data presented at the European Society for Medical Oncology (ESMO) 2021 Annual Meeting. In September 2021, Silverback presented interim clinical results from the ongoing Phase 1/1b study of SBT6050, including data that establish proof-of-mechanism through SBT6050’s ability to activate myeloid, T and NK cells, as well as evidence of SBT6050 payload localization in the tumor microenvironment. Adverse events reported were consistent with on-mechanism immune activation, and early signals of anti-tumor activity were observed.

 

   

Selected go forward dose of 0.3 mg/kg SBT6050 in combination with anti-PD-1 therapy in expansion cohorts. Silverback is prioritizing combination with Libtayo in gastroesophageal and non-small cell lung cancers and plans to initiate these expansion cohorts in the fourth quarter of 2021.

 

   

SBT6050 expanded clinical development strategy announced, leveraging combination with trastuzumab-containing regimens. In the first quarter of 2022, Silverback plans to initiate SBT6050-201, a Phase 1/2 study of SBT6050 combined with Enhertu, or with Herceptin and Tukysa with or without capecitabine, in patients with HER2-expressing or HER2-amplified cancers.

SBT6290 (Nectin4-TL8 ImmunoTAC)

 

   

SBT6290 Investigational New Drug application submitted to the U.S. Food and Drug Administration. Silverback remains on track to initiate the phase 1/1b trial in the first quarter of 2022, and plans to enroll patients with bladder, non-small cell lung, triple negative breast, and head and neck cancers in dose escalation.

SBT8230 (ASGR1-TLR8 ImmunoTAC for chronic HBV)

 

   

SBT8230 preclinical development continues with GLP toxicology studies expected to commence in the first quarter of 2022. Silverback will be providing a preclinical update on the SBT8230 program at the American Association for the Study of Liver Diseases (AASLD) 2021 conference held from November 12-14, 2021.


LOGO

 

Third Quarter Financial Results

For the third quarter ended September 30, 2021, Silverback reported a net loss of $22.7 million, compared to a net loss of $8.1 million for the comparable period in 2020. For the nine months ended September 30, 2021, Silverback reported a net loss of $66.0 million, compared to a net loss of $19.9 million for the comparable period in 2020. Included in the net losses for the three and nine months ended September 30, 2021 were $5.0 million and $14.0 million of non-cash stock-based compensation, respectively, compared to $0.2 million and $0.4 million for the same periods in 2020, respectively.

Research and development expenses for the third quarter ended September 30, 2021 were $15.6 million, compared to $6.2 million for the same period in 2020. Research and development expenses for the nine months ended September 30, 2021 were $45.6 million compared to $15.7 million for the same period in 2020. The increases in the Company’s research and development expenses in 2021 were primarily attributable to the advancement of pipeline programs, including SBT6290 and SBT8230, through preclinical development and the continued clinical development of SBT6050. Silverback also incurred additional personnel-related expenses as operations grew in support of program advancements.

General and administrative expenses for the third quarter ended September 30, 2021 were $7.0 million, compared to $1.9 million for the same period in 2020. General and administrative expenses for the nine months ended September 30, 2021 were $20.4 million, compared to $4.1 million for the same period in 2020. The increases in general and administrative expenses were primarily attributable to an increase in personnel-related expenses due to increased headcount in 2021, including new executives, as well as increases in salaries, bonuses, and stock-based compensation. The increases in general and administrative expenses were also due to an increase in legal fees, professional fees, and other various general and administrative expenses as we now operate as a public company.

As of September 30, 2021, Silverback reported cash, cash equivalents, and investments of $340.6 million compared to cash and cash equivalents of $386.6 million at December 31, 2020, which is expected to fund operating expenses and capital expenditure requirements into 2024.

About Silverback Therapeutics

Silverback Therapeutics, Inc. is a clinical-stage biopharmaceutical company focused on leveraging its proprietary ImmunoTAC technology platform to develop systemically delivered and tissue targeted therapeutics for the treatment of cancer, chronic viral infections, and other serious diseases. Silverback’s platform enables the strategic pairing of proprietary payloads that modulate key disease modifying pathways with monoclonal antibodies directed at specific disease sites. Initially, Silverback is creating a new class of targeted immuno-oncology agents that direct a TLR8 agonist myeloid cell activator to the tumor microenvironment in solid tumors to promote cancer cell killing. Silverback Therapeutics is located in Seattle, Washington. To learn more, visit www.silverbacktx.com.


LOGO

 

Forward-Looking Statements

This news release contains certain forward-looking statements that involve risks and uncertainties that could cause actual results to be materially different from historical results or from any future results expressed or implied by such forward-looking statements. Such forward-looking statements include statements regarding, among other things, Silverback’s plans and ability to bring new treatments to patients in need, including potential combination efforts, the progress and expected timing of Silverback’s drug development programs and clinical trials, and the strength of Silverback’s balance sheet and the adequacy of cash on hand. Factors that may cause actual results to differ materially include the risk that compounds that appeared promising in early research or clinical trials do not demonstrate safety and/or efficacy in later preclinical studies or clinical trials, the risk that Silverback may not obtain approval to market its product candidates, uncertainties associated with performing clinical trials, regulatory filings and applications, risks associated with reliance on third parties to successfully conduct clinical trials, the risks associated with reliance on outside financing to meet capital requirements, and other risks associated with the process of discovering, developing and commercializing drugs that are safe and effective for use as human therapeutics, and in the endeavor of building a business around such drugs. You are urged to consider statements that include the words “may,” “will,” “would,” “could,” “should,” “believes,” “estimates,” “projects,” “promise,” “potential,” “expects,” “plans,” “anticipates,” “intends,” “continues,” “designed,” “goal,” or the negative of those words or other comparable words to be uncertain and forward-looking. For a further list and description of the risks and uncertainties that Silverback faces, please refer to Silverback’s periodic and other filings with the Securities and Exchange Commission, which are available at www.sec.gov. Such forward-looking statements are current only as of the date they are made, and Silverback assumes no obligation to update any forward-looking statements, whether as a result of new information, future events or otherwise.

Investor Contact:

Miguel Arcinas

Silverback Therapeutics

(206) 736-7946

ir@silverbacktx.com

Media Contact:    

Jason Spark    

Canale Communications    

(619) 849-6005    

jason.spark@canalecomm.com

 

 

 


LOGO

 

Silverback Therapeutics, Inc.

Condensed Balance Sheets

(in thousands, except share and par value data)

 

     September 30,
2021
    December 31,
2020
 
     (unaudited)        

Assets

    

Current assets:

    

Cash and cash equivalents

   $ 300,660     $ 386,569  

Prepaid expenses and other current assets

     4,695       4,087  
  

 

 

   

 

 

 

Total current assets

     305,355       390,656  

Investments

     39,938       —    

Restricted cash

     350       350  

Right-of-use asset

     5,011       2,180  

Property and equipment, net

     1,907       1,618  
  

 

 

   

 

 

 

Total assets

   $ 352,561     $ 394,804  
  

 

 

   

 

 

 

Liabilities and stockholders’ equity

    

Current liabilities:

    

Accounts payable

   $ 1,720     $ 2,583  

Accrued expenses

     12,537       5,278  

Term loan payable, net

     —         844  

Current portion of lease liability

     1,090       896  
  

 

 

   

 

 

 

Total current liabilities

     15,347       9,601  

Lease liability, net of current portion

     5,080       2,326  
  

 

 

   

 

 

 

Total liabilities

     20,427       11,927  
  

 

 

   

 

 

 

Commitments and contingencies

    

Stockholders’ equity:

    

Preferred Stock, $0.0001 par value per share; 10,000,000 shares authorized at September 30, 2021 and December 31, 2020; no shares issued and outstanding at September 30, 2021 and December 31, 2020

     —         —    

Common stock, $0.0001 par value per share; 200,000,000 shares authorized at September 30, 2021 and December 31, 2020, 35,067,751 and 34,801,537 shares issued and 35,037,136 and 34,701,274 shares outstanding at September 30, 2021 and December 31, 2020, respectively

     4       3  

Additional paid-in capital

     494,916       479,608  

Accumulated other comprehensive loss

     (34     —    

Accumulated deficit

     (162,752     (96,734
  

 

 

   

 

 

 

Total stockholders’ equity

     332,134       382,877  
  

 

 

   

 

 

 

Total liabilities, and stockholders’ equity

   $ 352,561     $ 394,804  
  

 

 

   

 

 

 


LOGO

 

Silverback Therapeutics, Inc.

Condensed Statements of Operations and Comprehensive Loss

(in thousands, except share and per share data)

(unaudited)

 

     Three Months Ended
September 30,
    Nine Months Ended
September 30,
 
     2021     2020     2021     2020  

Operating expenses:

        

Research and development

   $ 15,641     $ 6,200       45,630     $ 15,740  

General and administrative

     7,040       1,912       20,447       4,077  
  

 

 

   

 

 

   

 

 

   

 

 

 

Total operating expenses

     22,681       8,112       66,077       19,817  
  

 

 

   

 

 

   

 

 

   

 

 

 

Loss from operations

     (22,681     (8,112     (66,077     (19,817

Interest income (expense), net

     26       (4     59       (45
  

 

 

   

 

 

   

 

 

   

 

 

 

Net loss

   $ (22,655   $ (8,116     (66,018   $ (19,862
  

 

 

   

 

 

   

 

 

   

 

 

 

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

     (34     —         (34     —    
  

 

 

   

 

 

   

 

 

   

 

 

 

Comprehensive loss attributable to common stockholders

   $ (22,689   $ (8,116     (66,052   $ (19,862
  

 

 

   

 

 

   

 

 

   

 

 

 

Net loss per share applicable to common stockholders, basic and diluted

   $ (0.65   $ (11.97   $ (1.89   $ (29.53
  

 

 

   

 

 

   

 

 

   

 

 

 

Weighted-average shares used in computing net loss per share attributable to common stockholders, basic and diluted

     35,001,466       678,048       34,884,656       672,531