Form 8-K - Current report

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 13, 2024

SELLAS Life Sciences Group, Inc.

(Exact name of registrant as specified in its charter)

Delaware

001-33958

20-8099512

(State or other jurisdiction of incorporation or organization)

(Commission

File Number)

(I.R.S. Employer

Identification No.)

7 Times Square, Suite 2503

New York, NY 10036

(Address of Principal Executive Offices) (Zip Code)

Registrant’s telephone number, including area code: (646) 200-5278

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligations 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	SLS	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 2.02. Results of Operations and Financial Condition.

On November 13, 2024, SELLAS Life Sciences Group, Inc. (“SELLAS”) issued a press release (the “Press Release”) announcing its financial results for the quarter ended September 30, 2024 and providing a corporate update.

A copy of the Press Release is furnished hereto as Exhibit 99.1 and is incorporated by reference herein. The information contained in this Item 2.02 and in the Press Release furnished as Exhibit 99.1 to this Current Report on Form 8-K shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that Section or Sections 11 and 12(a)(2) of the Securities Act of 1933, as amended. The information contained in this Item 2.02 and in the Press Release furnished as Exhibit 99.1 to this Current Report on Form 8-K shall not be incorporated by reference into any filing with the SEC made by SELLAS whether made before or after the date hereof, regardless of any general incorporation language in such filing.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits


Exhibit Number						Description
99.1						Press Release dated November 13, 2024
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.

SELLAS Life Sciences Group, Inc.

Date:

November 13, 2024

By:

/s/ John T. Burns

Name:

John T. Burns

Title:

Senior Vice President, Chief Financial Officer

Exhibit 99.1

SELLAS Life Sciences Reports Third Quarter 2024 Financial Results and Provides Corporate Update

- Pre-specified Events to Trigger Interim Analysis of Phase 3 REGAL Study in Patients with Acute Myeloid Leukemia (AML) Remains on Track for Q4 2024 -

- Data from the Phase 2a Trial of SLS009 in Relapsed/Refractory AML After Venetoclax Failure to be Presented at the Upcoming American Society of Hematology (ASH) Annual Meeting in December –

- GPS Granted FDA Rare Pediatric Disease Designation (RPDD) for the Treatment of Pediatric AML –

NEW YORK, NY November 13, 2024 -- SELLAS Life Sciences Group, Inc. (NASDAQ: SLS) (“SELLAS’’ or the “Company”), a late-stage clinical biopharmaceutical company focused on the development of novel therapies for a broad range of cancer indications, today reported financial results for the third quarter ended September 30, 2024, and provided a corporate update.

“We continue to make considerable progress across our pipeline, and we are particularly excited to announce the updated SLS009 Phase 2a data at ASH in December and to provide topline data from cohorts four and five in patients with relapsed/refractory (R/R) acute myeloid leukemia (AML) this quarter,” said Angelos Stergiou, MD, ScD h.c., President and Chief Executive Officer of SELLAS. “We are extremely grateful to the patients and their families, principal investigators and study teams, SELLAS employees, and all of those who have contributed to our Phase 3 REGAL study of galinpepimut-S (GPS). We are excited to be on the cusp of potentially adding a novel immunotherapy to physicians’ arsenals in their mission to prolong patients’ lives. We are looking forward to the significant milestones on the horizon, with interim analysis from our Phase 3 REGAL study of GPS in AML anticipated in the coming weeks.”

Pipeline Highlights

Galinpepimut-S (GPS): Wilms Tumor-1 (WT1) targeting immunotherapeutic

Phase 3 REGAL study in AML: In June, the IDMC conducted a prespecified risk-benefit assessment of unblinded data from the study and recommended that the trial continue without modifications. Based on a detailed analysis of all unblinded data, the IDMC projected that the interim analysis (60 events) will occur in the fourth quarter of 2024.

Granted FDA Rare Pediatric Disease Designation (RPDD): The FDA granted Rare Pediatric Disease Designation (RPDD) to GPS for the treatment of pediatric AML. GPS has already demonstrated promise in clinical settings for AML, which could extend to pediatric patients.

SLS009: highly selective and specific CDK9 inhibitor

ASH Poster Presentation Upcoming December 8, 2024: Phase 2a Study of SLS009, a Highly Selective CDK9 Inhibitor, In Combination with Azacitidine and Venetoclax for Relapsed/Refractory Acute Myeloid Leukemia After Prior Venetoclax Treatment.

The study enrolled 30 patients across three dosing levels (DLs) of SLS009:45 mg IV QW, DL2: 60 mg IV QW, and DL3: 30 mg IV BIW. SLS009 was well-tolerated across the DLs tested with no dose-limiting toxicities (DLTs) observed. Among 29 evaluable pts, 16 (55%) had ≥50% reduction in bone marrow (BM) blasts compared to baseline (DL1: 60%; DL2: 33%; DL3: 80%). Nine (31%) patients achieved an overall response (i.e., CR+CRi+MLFS), including 5 (17%) who achieved CR/CRi. The response rates per dose level were 10% in DL1, 33% in DL2, and 50%

in DL3. All 9 responders had AML- Myelodysplasia Related (AML-MR) (9/23 of AMLMR pts responded) and 8/15 pts (53%) with somatic MR mutations responded. Among those with ASXL1 mutations, 5/9 (56%) achieved an overall response. 2/9 (22%) with TP53 mutations achieved a response including one patient with concomitant TP53 and ASXL1 mutation who had an ongoing response at data cut-off. Fifteen patients were still alive at the time of the data cutoff and the median OS for the trial has not been reached.

Additional Phase 2 Cohorts in Venetoclax Combinations in r/r AML Continue Enrollment: Development of SLS009 continued with the ongoing enrollment of two additional cohorts: AML with myelodysplasia-related changes (AML MRC) with ASXL1 mutations and AML with myelodysplasia-related changes other than ASXL1 mutations. These cohorts are also open for enrollment of certain pediatric patients. Additional topline data updates are expected in the fourth quarter of 2024.

National Institute of Health PIVOT program in Pediatric Tumors: The program in multiple pediatric cancer indications continues in collaboration with the National Cancer Institute (NCI). Initial safety and efficacy data are expected to be reported in the fourth quarter of 2024.

Recently Granted Regulatory Designations for SLS009: The FDA granted Rare Pediatric Disease Designation (RPDD) to SLS009 for the treatment of pediatric ALL in June 2024 and the FDA granted RPDD to SLS009 for the treatment of pediatric AML in July 2024. Also, the EMA granted Orphan Drug Designation for SLS009 in AML and in PTCL in June 2024 and July 2024, respectively. The FDA previously granted SLS009 Orphan Drug Designations in AML and PTCL and Fast Track designations for r/r AML and r/r PTCL.

Financial Results for the Third Quarter 2024:

R&D Expenses: Research and development expenses for the quarter ended September 30, 2024, were $4.4 million, compared to $5.8 million for the same period in 2023. The decrease was primarily due to decreases in global clinical supply purchases, consultants, personnel-related expenses due to changes in headcount, and clinical trial expenses.

G&A Expenses: General and administrative expenses for the third quarter of 2024 were $3.0 million, compared to $3.5 million for the same period in 2023. The decrease was primarily attributed to personnel-related expenses due to changes in headcount and insurance premiums.

Net Loss: The net loss was $7.1 million for the third quarter of 2024, or a basic and diluted loss per share of $0.10, as compared to a net loss of $9.3 million for the third quarter of 2023, or a basic and diluted loss per share of $0.33. The net loss was $24.1 million for the nine months ended September 30, 2024, or a basic and diluted loss per share of $0.42, as compared to a net loss of $29.2 million for the same period in 2023, or a basic and diluted loss per share of $1.09.

Cash Position: As of September 30, 2024, cash and cash equivalents totaled approximately $21 million.

About SELLAS Life Sciences Group, Inc.

SELLAS is a late-stage clinical biopharmaceutical company focused on the development of novel therapeutics for a broad range of cancer indications. SELLAS’ lead product candidate, GPS, is licensed from Memorial Sloan Kettering Cancer Center and targets the WT1 protein, which is present in an array of tumor types. GPS has the potential as a monotherapy and combination with other therapies to address a broad spectrum of hematologic malignancies and solid tumor indications. The Company is also developing SLS009 (formerly GFH009) -

potentially the first and best-in-class differentiated small molecule CDK9 inhibitor with reduced toxicity and increased potency compared to other CDK9 inhibitors. Data suggests that SLS009 demonstrated a high response rate in AML patients with unfavorable prognostic factors including ASXL1 mutation, commonly associated with poor prognosis in various myeloid diseases. For more information on SELLAS, please visit www.sellaslifesciences.com.

Forward-Looking Statements

This press release contains forward-looking statements. All statements other than statements of historical facts are “forward-looking statements,” including those relating to future events. In some cases, forward-looking statements can be identified by terminology such as “plan,” “expect,” “anticipate,” “may,” “might,” “will,” “should,” “project,” “believe,” “estimate,” “predict,” “potential,” “intend,” or “continue” and other words or terms of similar meaning. These statements include, without limitation, statements related to the GPS clinical development program, including the REGAL study and the timing of future milestones related thereto. These forward-looking statements are based on current plans, objectives, estimates, expectations, and intentions, and inherently involve significant risks and uncertainties. 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, which include, without limitation, risks and uncertainties with oncology product development and clinical success thereof, the uncertainty of regulatory approval, and other risks and uncertainties affecting SELLAS and its development programs as set forth under the caption “Risk Factors” in SELLAS’ Annual Report on Form 10-K filed on March 28, 2024 and in its other SEC filings. Other risks and uncertainties of which SELLAS is not currently aware may also affect SELLAS’ forward-looking statements and may cause actual results and the timing of events to differ materially from those anticipated. The forward-looking statements herein are made only as of the date hereof. SELLAS undertakes no obligation to update or supplement any forward-looking statements to reflect actual results, new information, future events, changes in its expectations, or other circumstances that exist after the date as of which the forward-looking statements were made.

Investor Contact

Bruce Mackle

Managing Director

LifeSci Advisors, LLC

SELLAS@lifesciadvisors.com

SELLAS LIFE SCIENCES GROUP, INC.

CONSOLIDATED STATEMENTS OF OPERATIONS

(Amounts in thousands, except share and per share data)

(Unaudited)


	Three Months Ended September 30,				Nine Months Ended September 30,
	2024		2023		2024		2023
Operating expenses:
Research and development	$	4,362	$	5,813	$	14,659	$	18,910
General and administrative	2,967		3,548		9,936		10,782
Total operating expenses	7,329		9,361		24,595		29,692
Loss from operations	(7,329)		(9,361)		(24,595)		(29,692)
Non-operating income:
Change in fair value of warrant liability	—		—		—		4
Interest income	221		94		451		484
Total non-operating income	221		94		451		488
Net loss	(7,108)		(9,267)		$	(24,144)	$	(29,204)

Per share information:
Net loss per common share, basic and diluted	$	(0.10)	$	(0.33)	$	(0.42)	$	(1.09)
Weighted-average common shares outstanding, basic and diluted	68,254,021		28,355,427		56,940,617		26,767,914

SELLAS LIFE SCIENCES GROUP, INC.

CONSOLIDATED BALANCE SHEETS

(Amounts in thousands, except share and per share data)

(Unaudited)


	September 30, 2024		December 31, 2023

ASSETS
Current assets:
Cash and cash equivalents	$	21,031	$	2,530
Restricted cash and cash equivalents	100		100
Prepaid expenses and other current assets	2,904		542
Total current assets	24,035		3,172
Operating lease right-of-use assets	513		858
Goodwill	1,914		1,914
Deposits and other assets	43		275
Total assets	$	26,505	$	6,219
LIABILITIES AND STOCKHOLDERS’ EQUITY (DEFICIT)
Current liabilities:
Accounts payable	$	4,547	$	5,639
Accrued expenses and other current liabilities	5,490		7,650
Operating lease liabilities	576		446
Total current liabilities	10,613		13,735
Operating lease liabilities, non-current	—		460
Total liabilities	10,613		14,195
Commitments and contingencies
Stockholders’ equity (deficit):

Common stock, $0.0001 par value; 350,000,000 shares authorized, 64,381,979 and 32,132,890 shares issued and outstanding at September 30, 2024 and December 31, 2023, respectively	6		3
Additional paid-in capital	257,274		209,265
Accumulated deficit	(241,388)		(217,244)
Total stockholders’ equity (deficit)	15,892		(7,976)
Total liabilities and stockholders’ equity (deficit)	$	26,505	$	6,219

Cover	Nov. 13, 2024
Cover [Abstract]
Document Type	8-K
Document Period End Date	Nov. 13, 2024
Entity Registrant Name	SELLAS Life Sciences Group, Inc.
Entity Incorporation, State or Country Code	DE
Entity File Number	001-33958
Entity Tax Identification Number	20-8099512
Entity Address, Address Line One	7 Times Square, Suite 2503
Entity Address, City or Town	New York
Entity Address, State or Province	NY
Entity Address, Postal Zip Code	10036
City Area Code	(646)
Local Phone Number	200-5278
Written Communications	false
Soliciting Material	false
Pre-commencement Tender Offer	false
Pre-commencement Issuer Tender Offer	false
Title of 12(b) Security	Common Stock, $0.0001 par value per share
Trading Symbol	SLS
Security Exchange Name	NASDAQ
Entity Emerging Growth Company	false
Entity Central Index Key	0001390478
Amendment Flag	false