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Cellectar Biosciences Expands Global Intellectual Property Estate

Key Takeaway: Cellectar Biosciences has expanded its global intellectual property estate, securing new patents across multiple regions. This expansion enhances protection for its cancer-targeting drug, iopofosine I 131, as the company prepares for a conditional marketing approval filing with the EMA for Waldenström macroglobulinemia. The CEO highlighted the importance of this development for their long-term strategy and commitment to improving treatment options for patients.
Price reaction · baseline $3.29 (2026-02-13 close) · hit pre-market · clean, no other CLRB news in the window
day 0 close · peak
-5.2%
day 1
-4.6%
day 3
+2.7%

Market Sentiment Analysis

POSITIVE FACTORS

  • Cellectar expands its global IP estate, enhancing protection for its drugs.
  • The company is advancing its filing for conditional marketing approval in Europe.
  • Securing patents in major markets strengthens their commercial strategy.
  • The company aims to deliver new therapeutic options for cancer patients.

BiopharmaWatch Analysis

From our catalyst data and publicly available data · not financial advice
Best trade, last catalyst
+42%
120-day peak, hindsight
Typical move
2.9%
average across 4 past catalysts
Cash runway
~17 mo
Low dilution risk
Lead asset
I-131-CLR1404
Phase 1 · Multiple Myeloma

Full Press Release Details

Strengthens Protection Around Broad Portfolio of Cancer-Targeting Drug Conjugates and Enabling Technologies
Provides Key Coverage Across Europe Ahead of Planned 3Q26 Filing forConditional Marketing Approval with the European Medicines Agency (EMA) forIopofosine I 131 as a Treatment for Waldenström Macroglobulinemia
FLORHAM PARK, N.J., Feb. 17, 2026 (GLOBE NEWSWIRE) -- Cellectar Biosciences, Inc. (NASDAQ: CLRB), a late-stage clinical biopharmaceutical company focused on the discovery and development of drugs for the treatment of cancer, today announced a broad expansion of its global intellectual property (IP) estate, including newly issued patents across Europe, Asia-Pacific, the Middle East, and the Americas. These additions strengthen the company’s protection around iopofosine I 131, its proprietary radiotherapeutic, as well as its broader portfolio, including CLR 125, the company’s Auger-emitting radiopharmaceutical in development as a treatment for triple negative breast cancer.
“We are seeing meaningful and timely momentum across our global IP estate at a truly pivotal moment for the company,” said James Caruso, president and CEO of Cellectar Biosciences. “Securing these patents in major international markets reinforces the uniqueness of our technology and provides critical intellectual property fortification. Following guidance from the EMA’s Scientific Advice Working Party (SAWP) we are advancing our planned filing for conditional marketing authorization of iopofosine I 131 for Waldenström macroglobulinemia in Europe. This strengthened global protection is essential to our long-term commercial strategy—and, more importantly, it supports our commitment to delivering new, desperately needed therapeutic options to patients who continue to face limited treatment choices.”
The expanded IP coverage spans multiple patent families critical to the company’s therapeutic and platform strategies:
About Cellectar Biosciences, Inc.Cellectar Biosciences is a late-stage clinical biopharmaceutical company focused on the discovery and development of proprietary drugs for the treatment of cancer, independently and through research and development collaborations. The company’s core objective is to leverage its proprietary Phospholipid Drug Conjugate™ (PDC) delivery platform to develop the next-generation of cancer cell-targeting treatments, delivering improved efficacy and better safety as a result of fewer off-target effects.
The company’s product pipeline includes: iopofosine I 131, a PDC designed to provide targeted delivery of iodine-131 (radioisotope); CLR 121125 (CLR 125), an iodine-125 Auger-emitting program targeted for solid tumors, such as triple negative breast (TNBC), lung, and colorectal, and is currently being evaluated in a Phase 1b study for TNBC; CLR 121225 (CLR 225), an actinium-225 based program being targeted to several solid tumors with significant unmet need, such as pancreatic cancer, as well as proprietary preclinical PDC chemotherapeutic programs and multiple partnered PDC assets.
In addition, iopofosine I 131 has been studied in Phase 2b trials for relapsed or refractory multiple myeloma (MM) and central nervous system (CNS) lymphoma, and the CLOVER-2 Phase 1b study, targeting pediatric patients with high-grade gliomas, for which Cellectar is eligible to receive a Pediatric Review Voucher from the FDA upon approval. The FDA has granted iopofosine I 131 Breakthrough, six Orphan Drug, four Rare Pediatric Drug and two Fast Track Designations for various cancer indications, and the EMA has granted iopofosine I 131 PRIME.
For more information, please visitwww.cellectar.comor join the conversation by liking and following us on the company’s social media channels:X,LinkedIn, and Facebook.
Forward Looking Statements DisclaimerThis news release contains forward-looking statements. You can identify these statements by our use of words such as "may," "expect," "believe," "anticipate," "intend," "could," "estimate," "continue," "plans," or their negatives or cognates. These statements are only estimates and predictions and are subject to known and unknown risks and uncertainties that may cause actual future experience and results to differ materially from the statements made. These statements are based on our current beliefs and expectations as to such future outcomes. Drug discovery and development involve a high degree of risk. Factors that might cause such a material difference include, among others, uncertainties related to the ability to identify suitable collaborators, partners, licensees or purchasers for our product candidates and, if we are able to do so, to enter into binding agreements with regard to any of the foregoing, or to raise additional capital to support our operations, or our ability to fund our operations if we are unsuccessful with any of the foregoing. A complete description of risks and uncertainties related to our business is contained in our periodic reports filed with the Securities and Exchange Commission including our Form 10-K for the year ended December 31, 2024, and our Form 10-Q for the quarter ended September 30, 2025. These forward-looking statements are made only as of the date hereof, and we disclaim any obligation to update any such forward-looking statements.

Frequently Asked Questions

What is the focus of Cellectar Biosciences?

Cellectar Biosciences focuses on discovering and developing drugs for cancer treatment.

What drug is Cellectar seeking approval for?

Cellectar is seeking conditional marketing approval for iopofosine I 131.

What regions did Cellectar expand its IP estate?

Cellectar expanded its IP estate across Europe, Asia-Pacific, the Middle East, and the Americas.

What is the significance of the new patents?

The new patents strengthen protection for Cellectar's cancer-targeting drugs and support its commercial strategy.

Last updated: Feb 17, 2026