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Occurring Fact4588Oncolys BioPharma Inc.Pharmaceuticals

Notice of the Outcome of the Regenerative Medical Products and Biologically Derived Technologies Subcommittee of the Pharmaceutical Affairs Council Regarding Marketing Approval for the Oncolytic Virus Telomelysin Injection

The committee of the Ministry of Health, Labour and Welfare’s Pharmaceutical Affairs and Food Sanitation Council approved, among other matters, granting Telomelysin injection standard marketing approval rather than conditional, time-limited approval. Formal approval and NHI drug price listing will take place in due course, and sales are planned to begin in the fiscal year ending December 2026.

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Notice of the Outcome of the Regenerative Medical Products and Biologically Derived Technologies Subcommittee of the Pharmaceutical Affairs Council Regarding Marketing Approval for the Oncolytic Virus Telomelysin Injection

Subject Entity

Oncolys BioPharma Inc.

Target Locations / Products

Oncolytic virus Telomelysin injection

Occurrence21 May 2026 (committee meeting date)
Same day
Litigation / administrative action21 May 2026 (committee meeting date)
This disclosure05/22/2026
Cause

The product has been designated as an orphan drug (stated as the reason for setting the re-examination period at 10 years).

Amount of Impact on Business Performance

No impact (this announcement will have no impact on the Company’s financial results.)

Impact on Earnings Forecast

This announcement will have no impact on the Company’s financial results.

Related procedures

Type

Deliberation and approval by the Regenerative Medical Products and Biologically Derived Technology Committee of the Pharmaceutical Affairs and Food Sanitation Council

Court or authority

Ministry of Health, Labour and Welfare; Regenerative Medical Products and Biologically Derived Technology Committee of the Pharmaceutical Affairs and Food Sanitation Council

Company response

Investigation structure

A post-marketing survey is planned using an all-case surveillance system, with 85 planned cases.

Outlook

Following the product’s passage through the committee, Telomelysin injection is expected to go through the formal approval and NHI drug price listing processes before sales begin. The Company plans to begin sales of Telomelysin injection as scheduled in the fiscal year ending December 2026.

Event that occurred
ItemDetails
Event nameNotice of the Outcome of the Regenerative Medical Products and Biologically Derived Technologies Subcommittee of the Pharmaceutical Affairs Council Regarding Marketing Approval for the Oncolytic Virus Telomelysin Injection
Date of occurrence21 May 2026 (committee meeting date)
Subject EntityOncolys BioPharma Inc.
Target Locations / ProductsOncolytic virus Telomelysin injection
CauseThe product has been designated as an orphan drug (stated as the reason for setting the re-examination period at 10 years).
Amount of Impact on Business PerformanceNo impact (this announcement will have no impact on the Company’s financial results.)
Impact on Earnings ForecastThis announcement will have no impact on the Company’s financial results.
Type of litigation or proceedingDeliberation and approval by the Regenerative Medical Products and Biologically Derived Technology Committee of the Pharmaceutical Affairs and Food Sanitation Council
Court or authorityMinistry of Health, Labour and Welfare; Regenerative Medical Products and Biologically Derived Technology Committee of the Pharmaceutical Affairs and Food Sanitation Council
Date of filing / date of action21 May 2026 (committee meeting date)
Investigation structureA post-marketing survey is planned using an all-case surveillance system, with 85 planned cases.
OutlookFollowing the product’s passage through the committee, Telomelysin injection is expected to go through the formal approval and NHI drug price listing processes before sales begin. The Company plans to begin sales of Telomelysin injection as scheduled in the fiscal year ending December 2026.
Items this document does not state (13)
Date recognized / date notice receivedAccounting period in which recognizedPlaintiffDefendantClaim amount / surcharge amountAmount of receivables at risk of non-collection or delayed collectionSuspended operationsScheduled resumption dateMeasures to prevent recurrenceDirectors' and officers' liabilityVoting rights ownership percentage before the changeVoting rights ownership percentage after the changePlanned follow-up disclosure

These are items the company does not state in this document. We do not leave them blank, nor fill them in from other sources or by inference.

The reasons the company gives

The company's own explanation, not something inferred from the numbers.

As the product has been designated as an orphan drug, the re-examination period will be 10 years.

How to read this page

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Notice of the Outcome of the Regenerative Medical Products and Biologically Derived Technologies Subcommittee of the Pharmaceutical Affairs Council Regarding Marketing Approval for the Oncolytic Virus Telomelysin Injection | Oncolys BioPharma Inc. (4588) timely disclosure | Komori