SQZ SQZ Biotechnologies

Filed: 2 Dec 21, 6:28am







Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): December 02, 2021




(Exact name of Registrant as Specified in Its Charter)






(State or Other Jurisdiction
of Incorporation)

(Commission File Number)

(IRS Employer
Identification No.)






200 Arsenal Yards Blvd

Suite 210


Watertown, Massachusetts



(Address of Principal Executive Offices)


(Zip Code)


Registrant’s Telephone Number, Including Area Code: 617 758-8672



(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




Name of each exchange on which registered

Common Stock, $0.001 par value per share




The New York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company 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 8.01 Other Events.

On December 2, 2021, SQZ Biotechnologies Company (the “Company”) announced interim results from the highest-dose monotherapy cohort of its ongoing Phase 1/2 clinical trial of SQZ-PBMC-HPV, an investigational cell therapy being evaluated in certain patients with advanced or metastatic Human Papillomavirus positive (“HPV16+”) solid tumors. An abstract regarding the data was also published on December 2, 2021 by the European Society for Medical Oncology Immuno-Oncology (“ESMO-IO”) and the Company plans on presenting the data at ESMO-IO on December 9, 2021.


Trial Highlights from ESMO IO Abstract 565

SQZ-PBMC-HPV-101 Phase 1/2 trial has four dose-escalating monotherapy cohorts ranging from 0.5 to 5.0 x10e6 cells per kg
A total of 18 patients were treated across four cohorts and patients had an average of 3.5 prior lines of systemic cancer therapy
Across all cohorts the investigational therapy was generally well-tolerated, and no dose-limiting toxicities were observed
No grade 2 or higher treatment-related severe adverse events, or grade 3 adverse events, were observed in the highest-dose cohort
In the highest-dose cohort with five patients evaluable, one patient who had been heavily treated with PD-1 inhibitors before entering the trial demonstrated radiographic response as well as substantial increases in CD8 T cell tumor infiltration and PD-L1 expression


The highest-dose monotherapy stage continues enrollment to further characterize the investigational therapy in single agent settings. The combination stage of the trial is enrolling with checkpoint inhibitors targeting the PD-(L)1 and CTLA-4 pathways.


A copy of the press release issued in connection with the announcement is being furnished as Exhibit 99.1 to this Current Report on Form 8-K. The information in Exhibit 99.1 attached hereto is intended to be furnished and shall not be deemed “filed” for 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 it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended or the Exchange Act, except as expressly set forth by specific reference in such filing.


Forward Looking Statements


This press release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. All statements contained that do not relate to matters of historical fact should be considered forward-looking statements, including without limitation statements relating to events and presentations, our platform development, our product candidates, clinical activities, progress and outcomes, development plans, manufacturing, clinical safety and efficacy results, therapeutic impact, including the potential impact of combining SQZ-PBMC-HPV with checkpoint inhibitors, market opportunities and disease prevalence. These forward-looking statements are based on management's current expectations. Actual results could differ from those projected in any forward-looking statements due to several risk factors. Such factors include, among others, risks and uncertainties related to our limited operating history; our significant losses incurred since inception and expectation to incur significant additional losses for the foreseeable future; the development of our initial product candidates, upon which our business is highly dependent; the impact of the COVID-19 pandemic on our operations and clinical activities; our need for additional funding and our cash runway; the lengthy, expensive, and uncertain process of clinical drug development, including uncertain outcomes of clinical trials and potential delays in regulatory approval; our ability to maintain our relationships with our third party vendors and strategic collaborators; and protection of our proprietary technology, intellectual property portfolio and the confidentiality of our trade secrets. These and other important factors discussed under the caption “Risk Factors” in our Annual Report on Form 10-K, as updated by our Quarterly Report on Form 10-Q for the quarterly period ended September 30, 2021 and other filings with the U.S. Securities and Exchange Commission could cause actual results to differ materially from those indicated by the forward-looking statements. Any forward-looking statements represent management's estimates as of this date and we undertake no duty to update these forward-looking statements, whether as a result of new information, the occurrence of current events, or otherwise, unless required by law.


Certain information contained in this press release relates to or is based on studies, publications, surveys and other data obtained from third-party sources and our own internal estimates and research. While we believe these third-party sources to be reliable as of the date of this press release, we have not independently verified, and we make no representation as to the adequacy, fairness, accuracy or completeness of any information obtained from third-party sources.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits







Press release issued by SQZ Biotechnologies Company on December 2, 2021



Cover Page Interactive Data File (embedded with the Inline XBRL document)




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 thereunto duly authorized.










December 2, 2021


/s/ Lawrence Knopf




Lawrence Knopf
General Counsel