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Silexion Therapeutics Receives Approval from Germany's BfArM to Initiate Phase 2/3 Clinical Trial of SIL204 in Locally Advanced Pancreatic Cancer

(Positive)

Silexion Therapeutics (NASDAQ: SLXN) received unconditional approval from Germany's BfArM, with a positive ethics opinion, to start a Phase 2/3 trial of SIL204 in locally advanced pancreatic cancer. Alongside prior Israeli authorization, this clears initiation across both countries, with first patient dosing expected in the coming weeks.

The study will test SIL204 plus standard chemotherapy using dual intratumoral and systemic administration, beginning with ~18-patient safety run-in, then ~166-patient randomized expansion, and may later expand to additional EU states under the CTIS framework.

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Positive

  • Unconditional BfArM approval to start SIL204 Phase 2/3 trial in Germany
  • Clinical trial authorizations secured in both Germany and Israel for SIL204
  • First patient dosing in SIL204 Phase 2/3 expected in coming weeks
  • Phase 2/3 design includes ~18-patient safety run-in and ~166-patient randomized cohort
  • EU CTIS framework enables potential expansion to additional EU member states

Negative

  • None.

News Market Reaction – SLXN

+0.37%
6 alerts
+0.37% Session close to close
-28.5% Trough in 59 min
$2.88M Market Cap
1.2x Rel. Volume

In the Jun 23 session, SLXN gained 0.37%, reflecting a mild positive market reaction. Argus tracked a trough of -28.5% from its starting point during tracking. Our momentum scanner triggered 6 alerts that day, indicating moderate trading interest and price volatility.

Data tracked by StockTitan Argus on the day of publication.

Market Context

This announcement advances SIL204 into a Phase 2/3 trial across Germany and Israel, adding to a sequ...
Analysis

This announcement advances SIL204 into a Phase 2/3 trial across Germany and Israel, adding to a sequence of positive clinical milestones that averaged about -3.74% moves historically. High short interest and an effective resale shelf remain key overhangs to monitor.

Key Figures

Safety run-in size: approximately 18 patients Randomized cohort size: approximately 166 patients Five-year survival: below 13% +4 more
7 metrics
Safety run-in size approximately 18 patients Initial safety run-in cohort of Phase 2/3 SIL204 trial in LAPC
Randomized cohort size approximately 166 patients Planned randomized portion of Phase 2/3 SIL204 trial in LAPC
Five-year survival below 13% Five-year survival rate for pancreatic cancer
Metastatic mortality share more than 80% Share of pancreatic cancer mortality driven by metastatic disease
KRAS in pancreatic cancer approximately 90% Prevalence of KRAS mutations in pancreatic cancers
KRAS in colorectal cancer 45% Prevalence of KRAS mutations in colorectal cancers
KRAS in lung adenocarcinoma 30–35% Prevalence of KRAS mutations in lung adenocarcinomas

Previous Clinical trial Reports

5 past events · Latest: May 13 (Positive)
Same Type Pattern 5 events
Date Event Sentiment 24h Move Catalyst
May 13 GMP supply & ethics OK Positive -5.0% Announced GMP clinical manufacturing and new Israeli ethics approval for Phase 2/3 SIL204 trial.
Apr 28 Germany CTA filing Positive -12.8% Submitted Phase 2/3 clinical trial application to Germany’s BfArM via EU CTIS for SIL204.
Mar 24 Israel trial approval Positive +5.5% Received Israeli Ministry of Health approval to initiate Phase 2/3 SIL204 trial in LAPC.
Dec 16 Israel CTA submission Positive +1.2% Submitted Phase 2/3 clinical trial application in Israel for SIL204 in LAPC.
Dec 02 BfArM scientific advice Positive -7.6% Received positive written Scientific Advice from BfArM on Phase 2/3 SIL204 trial design.

24h Move is the share-price change in the day after each event; other market factors may also have contributed.

Pattern Detected

Clinical‑trial milestones for SLXN have more often sold off than rallied, with several negative price moves on otherwise positive development updates.

Key Terms

rna interference (rnai), small interfering rna (sirna), intratumoral delivery, systemic administration, +2 more
6 terms
rna interference (rnai) medical
"a clinical-stage biotechnology company pioneering RNA interference (RNAi) therapies for KRAS-driven cancers"
A natural cellular process in which small RNA molecules shut down the production of a specific protein by blocking the instructions that make it, like flipping a precise light switch to silence one appliance without affecting others. For investors, RNA interference is important because it underpins a class of highly targeted therapies and research tools that can create new drugs, shorten development paths, and change the potential market and regulatory risks for companies working on gene-based treatments.
small interfering rna (sirna) medical
"SIL204, the Company's lead small interfering RNA (siRNA) product candidate, in patients"
Small interfering RNA (siRNA) are short, lab-designed molecules that act like a targeted mute button for specific genes, binding to and prompting the cell to destroy matching genetic messages so a particular protein is not produced. For investors, siRNA represents a therapeutic technology platform: its ability to precisely switch off disease-causing genes can create new drug candidates, shape clinical and regulatory risk, and influence long-term commercial potential in biotechnology and pharma.
intratumoral delivery medical
"dual-route administration strategy - combining intratumoral delivery to target primary tumors"
A method of giving a medicine or therapeutic agent directly into a solid tumor, rather than into the bloodstream, to concentrate the treatment where cancer is located. Like putting a watering can on the plant instead of spraying the whole garden, it can increase local effectiveness and reduce side effects elsewhere in the body, which matters to investors because it can influence clinical success, safety profiles, regulatory approval chances and commercial value.
systemic administration medical
"combining intratumoral delivery to target primary tumors with systemic administration to address"
Systemic administration is giving a drug or biological therapy so it circulates through the bloodstream and reaches tissues throughout the body, rather than being applied to one spot. For investors, this matters because systemic delivery can widen a product’s patient reach and potential sales but also raises higher safety, manufacturing and regulatory hurdles—similar to watering an entire garden versus targeting a single plant, which affects cost, risk and marketability.
standard-of-care chemotherapy medical
"designed to evaluate SIL204 in combination with standard-of-care chemotherapy in patients"
The standard-of-care chemotherapy is the treatment or drug regimen that doctors currently use as the accepted, routine approach for a particular cancer because it has shown reliable benefits in clinical practice and trials. For investors, it acts like the market’s default product: new drugs are measured against it for regulatory approval, pricing, and adoption, so whether a competitor outperforms, complements, or fails against this benchmark can strongly influence a company’s prospects.
eu clinical trials regulation regulatory
"leading the scientific assessment of the trial under the EU Clinical Trials Regulation"
A legal framework that sets the rules for running clinical drug and device tests across the European Union, covering how trials are approved, monitored, and reported. It streamlines applications through a single online portal and raises transparency and patient safety standards, much like a unified building permit system speeds construction and enforces inspections. Investors care because it can change how quickly trials start, how costly they are, and how much regulatory risk a drug developer faces.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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CTA Approval from Germany's Federal Institute for Drugs and Medical Devices (BfArM), accompanied by a positive opinion from the Ethics Committee of the North Rhine Medical Association, clears Silexion to initiate the Phase 2/3 clinical trial of SIL204 in Germany

With approvals now secured in Israel and Germany - the two major regulatory jurisdictions in which Silexion sought clearance - the Company is positioned to initiate the Phase 2/3 trial of SIL204 in locally advanced pancreatic cancer across both countries

First patient dosing expected in the coming weeks at one of the activated Israeli or German sites, subject to completion of standard site activation procedures, including contracting and budget finalization at participating medical centers

Grand Cayman, June 23, 2026 (GLOBE NEWSWIRE) -- Silexion Therapeutics Corp. (NASDAQ: SLXN) (“Silexion” or the “Company”), a clinical-stage biotechnology company pioneering RNA interference (RNAi) therapies for KRAS-driven cancers, today announced that it has received formal approval from Germany's Federal Institute for Drugs and Medical Devices (BfArM, Bundesinstitut für Arzneimittel und Medizinprodukte) to initiate its planned Phase 2/3 clinical trial of SIL204, the Company's lead small interfering RNA (siRNA) product candidate, in patients with locally advanced pancreatic cancer (LAPC). The trial has been approved without conditions, with both Part I and Part II of the assessment determined to be justifiable, following the positive opinion of the Ethics Committee of the North Rhine Medical Association regarding the conduct of the trial in Germany.

The decision was issued under Articles 5 and 8 of EU Regulation No. 536/2014 in conjunction with the German Medicines Act (AMG), with Germany serving as the Reporting Member State (rMS) leading the scientific assessment of the trial under the EU Clinical Trials Regulation. The approval follows the Company's April 2026 submission of its Clinical Trial Application (CTA) through the EU Clinical Trials Information System (CTIS), which was informed by the positive written Scientific Advice from BfArM received in December 2025, the previously announced completion of two-species toxicology studies confirming no systemic organ toxicity, and the Company's broader preclinical package. The decision also builds on the March 24, 2026 approval from the Israeli Ministry of Health, which authorized initiation of the same Phase 2/3 trial in Israel. With the assessment in Germany complete, Silexion is now positioned to potentially expand its Phase 2/3 program across additional EU member states under the harmonized CTIS framework.

"With this BfArM approval, Silexion has now secured clinical trial authorizations in the two leading regulatory jurisdictions where we sought to initiate the Phase 2/3 trial of SIL204," said Ilan Hadar, Chairman and Chief Executive Officer of Silexion Therapeutics. "Germany is widely regarded as one of the most rigorous regulatory environments globally, and an unconditional approval as Reporting Member State under the EU Clinical Trials Regulation is, for us, a strong external validation of the SIL204 preclinical and safety package and a meaningful endorsement of the trial design we developed in close engagement with the agency. With Israeli and German authorizations now in hand, our focus shifts entirely to clinical execution, and we expect to dose our first patient in the coming weeks at one of the activated sites in Israel or Germany."

With both regulatory authorizations now obtained, Silexion is finalizing site activation procedures at participating medical centers in Israel and Germany, including the contracting and budget arrangements customary for multi-site international trials of this scale. The Company expects first-patient dosing to occur in the coming weeks, with the initial dosing site to be determined by the timing of site activation across the participating centers. Site activation in Israel is led by Sheba Medical Center and Tel Aviv Sourasky Medical Center, both of which previously received local ethics approvals for the trial, with leading German oncology centers being brought into the program under the EU CTIS framework.

The Phase 2/3 trial is designed to evaluate SIL204 in combination with standard-of-care chemotherapy in patients with LAPC, using Silexion's innovative dual-route administration strategy - combining intratumoral delivery to target primary tumors with systemic administration to address metastatic disease. The study is structured as an initial safety run-in cohort of approximately 18 patients, followed by expansion into a randomized cohort of approximately 166 patients. Pancreatic cancer remains one of the most lethal malignancies, with a five-year survival rate below 13%, and more than 80% of pancreatic cancer mortality driven by metastatic disease. KRAS mutations are present in approximately 90% of pancreatic cancers, 45% of colorectal cancers, and 30–35% of lung adenocarcinomas, representing one of the largest and most persistent unmet needs in oncology.

About Silexion Therapeutics
Silexion Therapeutics is a pioneering clinical-stage, oncology-focused biotechnology company dedicated to the development of innovative treatments for unsatisfactorily treated solid tumor cancers that have the mutated KRAS oncogene, generally considered to be the most common oncogenic gene driver in human cancers. The Company conducted a Phase 2a clinical trial in its first-generation product candidate, which showed a positive trend in comparison to the control of chemotherapy alone, and is now advancing its lead, second-generation, product candidate, SIL204, a small interfering RNA (siRNA), into Phase 2/3 clinical evaluation in Israel and the European Union. Silexion is committed to pushing the boundaries of therapeutic advancements in the field of oncology and further developing its lead product candidate for locally advanced pancreatic cancer. For more information, please visit: https://silexion.com

Notice Regarding Forward-Looking Statements
This press release contains forward-looking statements within the meaning of the federal securities laws. All statements other than statements of historical fact contained in this communication, including statements regarding the initiation, timing, design, and conduct of the Phase 2/3 clinical trial of SIL204 in locally advanced pancreatic cancer.. These forward-looking statements are generally identified by terminology such as "may", "should", "could", "might", "plan", "possible", "expect", "intend", "will", "estimate", "anticipate", "believe", "prospective", "potential", or "continue", or the negatives of these terms or variations of them or similar terminology. Forward-looking statements involve a number of risks, uncertainties, and assumptions, and actual results or events may differ materially from those projected or implied in those statements. Important factors that could cause such differences include, but are not limited to: (i) Silexion's ability to successfully initiate and conduct clinical trials, including the Phase 2/3 trial of SIL204 in locally advanced pancreatic cancer, and to activate clinical trial sites on the anticipated timeline; (ii) Silexion's strategy, future operations, financial position, projected costs, prospects, and plans; (iii) the impact of the regulatory environment and compliance complexities, including site-level approvals, conditions and clearances (including outstanding regulatory forms and any initial participant caps) required prior to study commencement at each clinical site in Israel and Germany, and the timing and outcome of additional regulatory submissions and reviews in further EU member states, the United States, and other jurisdictions; (iv) expectations regarding future partnerships or other relationships with third parties; (v) Silexion's future capital requirements and sources and uses of cash, including its ability to obtain additional capital; (vi) Silexion's ability to maintain its Nasdaq listing; and (vii) other risks and uncertainties set forth in the documents filed by the Company with the SEC, including the Company's Annual Report on Form 10-K for the year ended December 31, 2025, filed with the SEC on March 17, 2026, and the Company's Quarterly Report on Form 10-Q for the quarter ended March 31, 2026, filed with the SEC on May 15, 2026. Silexion cautions you against placing undue reliance on forward-looking statements, which reflect current beliefs and are based on information currently available as of the date a forward-looking statement is made. Forward-looking statements set forth herein speak only as of the date they are made. Silexion undertakes no obligation to revise forward-looking statements to reflect future events, changes in circumstances, or changes in beliefs, except as otherwise required by law.

Company Contact
Silexion Therapeutics Corp
Ms. Mirit Horenshtein Hadar, CFO
mirit@silexion.com

Investor Relations Contact
Arx Investor Relations
North American Equities Desk
silexion@arxhq.com


FAQ

What did Silexion Therapeutics (NASDAQ: SLXN) announce about the SIL204 trial on June 23, 2026?

Silexion announced that Germany's BfArM approved initiation of its Phase 2/3 SIL204 trial in locally advanced pancreatic cancer. According to Silexion, the approval is unconditional and follows a positive ethics opinion, positioning the company to start the trial in Germany and Israel.

How is Silexion's Phase 2/3 SIL204 trial in locally advanced pancreatic cancer (SLXN) designed?

The SIL204 trial includes an initial safety run-in of about 18 patients, then expands into a randomized cohort of about 166 patients. According to Silexion, SIL204 will be tested with standard chemotherapy using dual-route intratumoral and systemic administration to address primary and metastatic disease.

When is first patient dosing expected in Silexion's SIL204 Phase 2/3 trial (NASDAQ: SLXN)?

First patient dosing in the SIL204 Phase 2/3 trial is expected in the coming weeks. According to Silexion, dosing will begin at one of the activated Israeli or German sites, subject to completion of standard site activation steps, including contracting and budget finalization.

In which countries will Silexion conduct the SIL204 Phase 2/3 pancreatic cancer trial (SLXN)?

Silexion plans to run the SIL204 Phase 2/3 trial in Israel and Germany. According to Silexion, approvals are secured in both countries, with Germany acting as Reporting Member State and the CTIS framework allowing potential expansion to additional EU member states later.

What treatment approach is Silexion testing with SIL204 in locally advanced pancreatic cancer (SLXN)?

SIL204 will be evaluated in combination with standard-of-care chemotherapy using a dual-route administration strategy. According to Silexion, this combines intratumoral delivery to target primary tumors with systemic administration aimed at metastatic disease, addressing key drivers of pancreatic cancer mortality.

Why is German BfArM approval important for Silexion's SIL204 program (NASDAQ: SLXN)?

German BfArM approval allows Silexion to initiate the SIL204 Phase 2/3 trial under EU Clinical Trials Regulation. According to Silexion, Germany serves as Reporting Member State, and the unconditional decision reflects acceptance of the preclinical safety package and trial design.