Form 8-K
8-K — ONCOLYTICS BIOTECH INC
Accession: 0001129928-26-000055
Filed: 2026-09-10
Period: 2026-09-10
CIK: 0001129928
SIC: 2834 (PHARMACEUTICAL PREPARATIONS)
Item: Other Events
Documents
8-K — oncy-20260910.htm (Primary)
EX-99.1 (oncolyticsrascrcpreclinica.htm)
XML — IDEA: XBRL DOCUMENT (R1.htm)
8-K
8-K (Primary)
Filename: oncy-20260910.htm · Sequence: 1
oncy-20260910
FALSE0001129928A000011299282026-01-082026-01-08
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): September 10, 2026
___________________________________
Oncolytics Biotech Inc.
(Exact name of registrant as specified in its charter)
___________________________________
Nevada
(State or other jurisdiction of
incorporation)
001-38512
(Commission File Number)
98-0541667
(IRS Employer Identification No.)
4350 Executive Drive, Suite 325
San Diego, CA 92121
92121
(Address of principal executive offices)
(Zip Code)
(403) 670-7377
(Registrant's telephone number, including area code)
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, par value $0.001 per share
ONCY
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 Exchange Act (§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 September 10, 2026, Oncolytics Biotech Inc. (the “Company”) issued a press release announcing results from a preclinical study evaluating pelareorep in combination with a pan-RAS inhibitor in a RAS-driven colorectal cancer model. The information set forth in this Item 8.01 and in Exhibit 99.1 is furnished and 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.
Item 9.01. Financial Statements and Exhibits.
(d) Exhibits.
Exhibit No.
Description
99.1
Press Release issued by Oncolytics Biotech Inc., dated as of September 10, 2026.
104
Cover Page Interactive Data File (embedded within the Inline XBRL document).
SIGNATURE
Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
Date: September 10, 2026
ONCOLYTICS BIOTECH INC.
By:
/s/ Kirk Look
Name:
Kirk Look
Title:
Chief Financial Officer
EX-99.1
EX-99.1
Filename: oncolyticsrascrcpreclinica.htm · Sequence: 2
Document
Oncolytics Biotech® Announces Positive Preclinical Results Combining Pelareorep with a Pan-RAS Inhibitor in Colorectal Cancer
Preclinical results demonstrate pelareorep activity is maintained in the presence of RAS inhibition
Findings support further evaluation of pelareorep’s potential to deepen and prolong responses to RAS-targeted therapy
SAN DIEGO, CA, September 10, 2026 – Oncolytics Biotech® Inc. (Nasdaq: ONCY) (“Oncolytics” or the “Company”), a clinical-stage immunotherapy company developing pelareorep, today announced positive preclinical results evaluating pelareorep in combination with a pan-RAS inhibitor in a RAS-driven colorectal cancer model.
During the initial treatment period, when pelareorep was administered every other day, pelareorep, the pan-RAS inhibitor and the combination each reduced tumor growth compared to the control. The greatest tumor reductions were observed in the RAS inhibitor and combination groups, demonstrating that pelareorep activity was maintained in the presence of RAS inhibition without evidence of antagonism between the two therapies.
Following the transition to less frequent weekly pelareorep dosing, the incremental activity associated with pelareorep became less evident. Together, these findings support further evaluation of optimized pelareorep dosing with RAS inhibitors and the hypothesis that sustained pelareorep activity could potentially deepen or prolong responses to RAS-targeted therapy and thereby delay the emergence of treatment resistance.
Importantly, the findings are consistent with previously published independent research demonstrating that RAS inhibitors do not interfere with the mechanism through which pelareorep selectively infects tumor cells. This biological compatibility provides a rationale for further evaluating whether pelareorep’s tumor-selective and immunologic activity can complement the direct antitumor effects of RAS inhibition and potentially delay the development of resistance.
“These results provide an encouraging first look at combining pelareorep with one of the most important emerging classes of targeted cancer therapies,” said Thomas Heineman, MD, PhD, Chief Medical Officer of Oncolytics. “We observed pelareorep activity during the initial intensive dosing period as well as biologic compatibility between pelareorep and RAS inhibition, supporting the continued evaluation of pelareorep/RAS inhibitor combination therapy. Because acquired resistance remains a major limitation of RAS-targeted therapies, we believe these findings provide a compelling rationale to investigate whether sustained pelareorep activity can deepen and prolong responses to RAS inhibition and potentially delay the emergence of resistance. Similarly, pelareorep, because of its unique mechanism of action, may offer a treatment option for patients who become resistant to RAS inhibitors.”
Oncolytics plans to expand its preclinical evaluation of pelareorep with RAS inhibitors across additional dosing schedules and RAS-driven tumor models. These studies will be designed to further characterize pelareorep’s contribution to the combination, including its potential impact on the depth and durability of tumor response and the development of resistance to RAS-targeted therapy.
About Pelareorep
Pelareorep is an intravenously delivered, systemically active, investigational immunotherapy with a dual mechanism of action that selectively replicates in tumor cells while activating both innate and adaptive anti-tumor immune responses, including the upregulation of key inflammatory cytokines resulting in the formation of tertiary lymphoid structures and the expansion of tumor-infiltrating lymphocytes. It has been administered to over 1,200 patients, and clinical studies have demonstrated pelareorep’s potential to enhance the activity of checkpoint inhibitors and other anti-cancer therapies across multiple solid tumor types.
About Oncolytics Biotech Inc.
Oncolytics is a clinical-stage biotechnology company developing pelareorep, an investigational intravenously delivered double-stranded RNA immunotherapeutic agent. Pelareorep has demonstrated encouraging results in multiple first-line pancreatic cancer studies, two randomized Phase 2 studies in metastatic breast cancer, and early-phase studies in anal and colorectal cancer. It is designed to induce anti-cancer immune responses by converting immunologically “cold” tumors to “hot” through the activation of innate and adaptive immune responses.
The Company is advancing pelareorep in combination with chemotherapy and/or checkpoint inhibitors in metastatic gastrointestinal cancers, where pelareorep has received Fast Track designation from the FDA for colorectal, anal, and pancreatic cancer. Oncolytics is actively pursuing strategic partnerships to accelerate development and maximize commercial impact. For more about Oncolytics, please visit: www.oncolyticsbiotech.com or follow the Company on LinkedIn and on X @oncolytics.
Forward-looking statements
This press release contains forward-looking statements, within the meaning of Section 21E of the U.S. Securities Exchange Act of 1934, as amended, and forward-looking information under applicable Canadian securities laws (such forward-looking statements and forward-looking information are collectively referred to herein as “forward-looking statements”). Forward-looking statements contained in this press release include statements regarding the potential benefits of combining pelareorep with RAS inhibitors; the potential ability of pelareorep to delay or help overcome resistance to RAS-targeted therapies; plans for additional preclinical studies involving RAS inhibitors; and the potential clinical development and commercialization of pelareorep. Preclinical results may not be predictive of results observed in clinical studies. Additional forward-looking statements include those regarding beliefs as to the potential, registration, mechanism of action and benefits of pelareorep as a cancer therapeutic; the Company’s goals, strategies, and objectives; expectations around the design, milestones, anticipated timelines and expected outcomes for current and future studies; the Company’s belief in the clinical promise of pelareorep in anal, colorectal, pancreatic and other gastrointestinal cancers; and the Company’s goals and expectations for its potential registrational development path for pelareorep in multiple gastrointestinal cancers. In any forward-looking statement in which Oncolytics expresses an expectation or belief as to future results, such expectations or beliefs are expressed in good faith and are believed to have a reasonable basis, but there can be no assurance that the statement or expectation or belief will be achieved. These statements involve known and unknown risks and uncertainties that may cause actual results to differ materially from those anticipated. These risks include, but are not limited to, regulatory outcomes, trial execution, financial resources, access to capital markets, and market dynamics. Please refer to Oncolytics’ public filings with securities regulators in the United States and Canada for more information. The Company assumes no obligation to update forward-looking statements, except as required by law.
Company Contact
Jon Patton
Director of IR & Communication
jpatton@oncolytics.com
XML — IDEA: XBRL DOCUMENT
XML
Filename: R1.htm · Sequence: 7
v3.26.1
Cover
Jan. 08, 2026
Cover [Abstract]
Document Type
8-K
Document Period End Date
Sep. 10, 2026
Entity Registrant Name
Oncolytics Biotech Inc.
Entity Incorporation, State or Country Code
A0
Entity File Number
001-38512
Entity Address, Address Line One
4350 Executive Drive
Entity Address, Address Line Two
Suite 325
Entity Address, City or Town
San Diego
Entity Address, State or Province
CA
Entity Address, Postal Zip Code
92121
City Area Code
403
Local Phone Number
670-7377
Written Communications
false
Soliciting Material
false
Pre-commencement Tender Offer
false
Pre-commencement Issuer Tender Offer
false
Title of 12(b) Security
Common stock, par value $0.001 per share
Trading Symbol
ONCY
Security Exchange Name
NASDAQ
Entity Emerging Growth Company
false
Amendment Flag
false
Entity Central Index Key
0001129928
X
- Definition
Boolean flag that is true when the XBRL content amends previously-filed or accepted submission.
+ References
No definition available.
+ Details
Name:
dei_AmendmentFlag
Namespace Prefix:
dei_
Data Type:
xbrli:booleanItemType
Balance Type:
na
Period Type:
duration
X
- Definition
Area code of city
+ References
No definition available.
+ Details
Name:
dei_CityAreaCode
Namespace Prefix:
dei_
Data Type:
xbrli:normalizedStringItemType
Balance Type:
na
Period Type:
duration
X
- Definition
Cover page.
+ References
No definition available.
+ Details
Name:
dei_CoverAbstract
Namespace Prefix:
dei_
Data Type:
xbrli:stringItemType
Balance Type:
na
Period Type:
duration
X
- Definition
For the EDGAR submission types of Form 8-K: the date of the report, the date of the earliest event reported; for the EDGAR submission types of Form N-1A: the filing date; for all other submission types: the end of the reporting or transition period. The format of the date is YYYY-MM-DD.
+ References
No definition available.
+ Details
Name:
dei_DocumentPeriodEndDate
Namespace Prefix:
dei_
Data Type:
xbrli:dateItemType
Balance Type:
na
Period Type:
duration
X
- Definition
The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word 'Other'.
+ References
No definition available.
+ Details
Name:
dei_DocumentType
Namespace Prefix:
dei_
Data Type:
dei:submissionTypeItemType
Balance Type:
na
Period Type:
duration
X
- Definition
Address Line 1 such as Attn, Building Name, Street Name
+ References
No definition available.
+ Details
Name:
dei_EntityAddressAddressLine1
Namespace Prefix:
dei_
Data Type:
xbrli:normalizedStringItemType
Balance Type:
na
Period Type:
duration
X
- Definition
Address Line 2 such as Street or Suite number
+ References
No definition available.
+ Details
Name:
dei_EntityAddressAddressLine2
Namespace Prefix:
dei_
Data Type:
xbrli:normalizedStringItemType
Balance Type:
na
Period Type:
duration
X
- Definition
Name of the City or Town
+ References
No definition available.
+ Details
Name:
dei_EntityAddressCityOrTown
Namespace Prefix:
dei_
Data Type:
xbrli:normalizedStringItemType
Balance Type:
na
Period Type:
duration
X
- Definition
Code for the postal or zip code
+ References
No definition available.
+ Details
Name:
dei_EntityAddressPostalZipCode
Namespace Prefix:
dei_
Data Type:
xbrli:normalizedStringItemType
Balance Type:
na
Period Type:
duration
X
- Definition
Name of the state or province.
+ References
No definition available.
+ Details
Name:
dei_EntityAddressStateOrProvince
Namespace Prefix:
dei_
Data Type:
dei:stateOrProvinceItemType
Balance Type:
na
Period Type:
duration
X
- Definition
A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Exchange Act
-Number 240
-Section 12
-Subsection b-2
+ Details
Name:
dei_EntityCentralIndexKey
Namespace Prefix:
dei_
Data Type:
dei:centralIndexKeyItemType
Balance Type:
na
Period Type:
duration
X
- Definition
Indicate if registrant meets the emerging growth company criteria.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Exchange Act
-Number 240
-Section 12
-Subsection b-2
+ Details
Name:
dei_EntityEmergingGrowthCompany
Namespace Prefix:
dei_
Data Type:
xbrli:booleanItemType
Balance Type:
na
Period Type:
duration
X
- Definition
Commission file number. The field allows up to 17 characters. The prefix may contain 1-3 digits, the sequence number may contain 1-8 digits, the optional suffix may contain 1-4 characters, and the fields are separated with a hyphen.
+ References
No definition available.
+ Details
Name:
dei_EntityFileNumber
Namespace Prefix:
dei_
Data Type:
dei:fileNumberItemType
Balance Type:
na
Period Type:
duration
X
- Definition
Two-character EDGAR code representing the state or country of incorporation.
+ References
No definition available.
+ Details
Name:
dei_EntityIncorporationStateCountryCode
Namespace Prefix:
dei_
Data Type:
dei:edgarStateCountryItemType
Balance Type:
na
Period Type:
duration
X
- Definition
The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Exchange Act
-Number 240
-Section 12
-Subsection b-2
+ Details
Name:
dei_EntityRegistrantName
Namespace Prefix:
dei_
Data Type:
xbrli:normalizedStringItemType
Balance Type:
na
Period Type:
duration
X
- Definition
Local phone number for entity.
+ References
No definition available.
+ Details
Name:
dei_LocalPhoneNumber
Namespace Prefix:
dei_
Data Type:
xbrli:normalizedStringItemType
Balance Type:
na
Period Type:
duration
X
- Definition
Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Exchange Act
-Number 240
-Section 13e
-Subsection 4c
+ Details
Name:
dei_PreCommencementIssuerTenderOffer
Namespace Prefix:
dei_
Data Type:
xbrli:booleanItemType
Balance Type:
na
Period Type:
duration
X
- Definition
Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Exchange Act
-Number 240
-Section 14d
-Subsection 2b
+ Details
Name:
dei_PreCommencementTenderOffer
Namespace Prefix:
dei_
Data Type:
xbrli:booleanItemType
Balance Type:
na
Period Type:
duration
X
- Definition
Title of a 12(b) registered security.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Exchange Act
-Number 240
-Section 12
-Subsection b
+ Details
Name:
dei_Security12bTitle
Namespace Prefix:
dei_
Data Type:
dei:securityTitleItemType
Balance Type:
na
Period Type:
duration
X
- Definition
Name of the Exchange on which a security is registered.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Exchange Act
-Number 240
-Section 12
-Subsection d1-1
+ Details
Name:
dei_SecurityExchangeName
Namespace Prefix:
dei_
Data Type:
dei:edgarExchangeCodeItemType
Balance Type:
na
Period Type:
duration
X
- Definition
Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as soliciting material pursuant to Rule 14a-12 under the Exchange Act.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Exchange Act
-Number 240
-Section 14a
-Subsection 12
+ Details
Name:
dei_SolicitingMaterial
Namespace Prefix:
dei_
Data Type:
xbrli:booleanItemType
Balance Type:
na
Period Type:
duration
X
- Definition
Trading symbol of an instrument as listed on an exchange.
+ References
No definition available.
+ Details
Name:
dei_TradingSymbol
Namespace Prefix:
dei_
Data Type:
dei:tradingSymbolItemType
Balance Type:
na
Period Type:
duration
X
- Definition
Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as written communications pursuant to Rule 425 under the Securities Act.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Securities Act
-Number 230
-Section 425
+ Details
Name:
dei_WrittenCommunications
Namespace Prefix:
dei_
Data Type:
xbrli:booleanItemType
Balance Type:
na
Period Type:
duration