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): July 31, 2020
 
 

SESEN BIO, INC.
(Exact name of registrant as specified in its charter)
 
 

 
 
 
 
 
 
Delaware
 
001-36296
 
26-2025616
(State or other jurisdiction
of incorporation)
 
(Commission
File Number)
 
(I.R.S. Employer
Identification No.)
 
 
245 First Street, Suite 1800
Cambridge, MA
 
02142
(Address of principal executive offices)
 
(Zip Code)
Registrant’s telephone number, including area code: (617) 444-8550
Not Applicable
(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))
 
Title of each class
Trading Symbol(s)
Name of each exchange on which registered
Common Stock, par value $0.001
SESN
The Nasdaq Stock Market LLC


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 July 31, 2020, Sesen Bio, Inc. (the “Company”) successfully completed the final of three commercial-scale drug substance cGMP process performance qualification (“PPQ”) manufacturing runs for Vicineum™, the Company's lead product candidate, with its contract manufacturing organization partner, FUJIFILM Diosynth Biotechnologies U.S.A., Inc. (“Fujifilm”). As previously disclosed, the Company has partnered with Fujifilm and Baxter Oncology GmbH (“Baxter”) for the manufacturing process and technology transfer of Vicineum.
On August 4, 2020, the Company completed validation studies for the drug substance PPQ batches. The Company also received the interim certificate of analysis to ship drug substance to Baxter to complete the next drug product PPQ run. Based on this progress, the Company expects to complete the manufacturing of the full drug product PPQ campaign for Vicineum in late-September 2020.
The analytical comparability and stability data from the PPQ campaigns for drug substance and drug product are the last material deliverables for the Company to complete its Biologics License Application (“BLA”) submission for Vicineum to the United States Food and Drug Administration in the fourth quarter of 2020.

CAUTIONARY NOTE REGARDING FORWARD-LOOKING STATEMENTS:

This Current Report on Form 8-K contains forward-looking statements, including, but not limited to, statements related to expectations regarding the timing of completion of the Company’s BLA submission for Vicineum and expectations regarding the timing of shipment of the bulk drug substance to Baxter and the manufacture of the remaining drug product PPQ batches. These forward-looking statements are based on the Company’s current expectations and inherently involve significant risks and uncertainties. The Company’s actual results and the timing of events could differ materially from those anticipated in such forward-looking statements as a result of these risks and uncertainties. A further description of the risks and uncertainties relating to the business of the Company is contained in the Company’s most recent annual report on Form 10-K and the Company’s quarterly reports on Form 10-Q, as well as any amendments thereto reflected in subsequent filings with the SEC. The Company undertakes no duty or obligation to update any forward-looking statements contained in this report as a result of new information, future events or changes in its expectations.




SIGNATURE
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.
Date: August 7, 2020
 
 
 
 
Sesen Bio, Inc.
 
 
By:
 
/s/ Thomas R. Cannell, D.V.M.

 
 
Thomas R. Cannell, D.V.M.

 
 
President and Chief Executive Officer



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