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Cellectar Biosciences Reports First Quarter 2026 Financial Results and Provides Corporate Updates Announced Positive 12-month Follow-on Data for Iopofosine I 131 in relapsed/refractory Waldenstr m Macroglobulinemia (r/r

Key Takeaway: Cellectar Biosciences has reported its financial results for the first quarter of 2026, highlighting significant progress in its clinical pipeline. The company secured up to $140 million in financing to support advancements in their lead compound, iopofosine I 131, for the treatment of relapsed/refractory Waldenström macroglobulinemia. Recent follow-up data from the CLOVER-WaM study indicated promising efficacy and will support a Phase 3 study. Additionally, Cellectar has initiated a Phase 1b trial for CLR 125 in triple-negative breast cancer, emphasizing their commitment to developing innovative cancer therapies.

Market Sentiment Analysis

POSITIVE FACTORS

  • Cellectar successfully completed a financing of up to $140 million.
  • Positive 12-month follow-on data from the CLOVER-WaM study were reported.
  • Initiation of a Phase 3 confirmatory study and filing for accelerated approval with the FDA are planned.
  • First patients dosed in a Phase 1b study for CLR 125, addressing triple-negative breast cancer.

Full Press Release Details

Cellectar Biosciences
Reports First Quarter 2026 Financial Results and Provides Corporate Updates
12-month Follow-on Data for Iopofosine I 131 in relapsed/refractory Waldenstr m Macroglobulinemia (r/r WM)
of up to $140 Million to Support Initiation of Confirmatory Study of Iopofosine I 131 in r/r WM and Subsequent U.S. FDA Filing for Accelerated
from r/r WM Patients in CLOVER-WaM Phase 2b Study Treated with Iopofosine I 131 Immediately Following BTK Inhibitor Therapy Selected
for Presentation at ASCO 2026
Dosed First Patients
in Phase 1b Dose Finding Study for CLR 125 in Triple Negative Breast Cancer with Early Dosimetry, Safety and Efficacy Data Expected Mid-year
Webcast and Conference Call at 8:30 AM ET Today
FLORHAM PARK, N.J., May 14,
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 financial results for the quarter ended March 31,
2026, and provided a corporate update.
"The first part of 2026 was a
pivotal period for Cellectar as we executed across our pipeline and capital strategies to position the company for value creation,"
said James Caruso, president and chief executive officer of Cellectar. "With the support of industry-leading healthcare focused
investors, we successfully completed a financing of up to $140 million, providing the necessary resources to advance iopofosine through
key U.S. regulatory milestones and potential commercialization. The recently reported positive 12-month follow-on data from our CLOVER
WaM study reinforce our confidence that iopofosine can provide meaningful patient benefits and meet regulatory expectations, supporting
our plans to initiate a Phase 3 confirmatory study and file for accelerated approval with the FDA," Mr. Caruso continued.
"In parallel, we expanded our
radio-conjugate pipeline with the enrollment of the first patients in our Phase 1b study of CLR 125 in triple negative breast cancer,
a challenging solid tumor cancer with a substantial unmet medical need. Together, these advances underscore the strength of our radiopharmaceutical
platform and potential to deliver meaningful new treatment options to patients battling a variety of difficult-to-treat cancers,"
concluded Mr. Caruso.
First Quarter 2026 and Recent Corporate
Overall response rate (ORR): 83.6%
Median progression-free survival (PFS): 13.5 months
Very good partial response/complete response rate (VGPR/CR): 14.5%
Disease control rate (DCR):98.2
Title: "Iopofosine I-131 after BTK inhibitors in Waldenstr m macroglobulinemia: CLOVER-WaM subgroup efficacy and safety"
Poster: 592
Date/Time: June 1, 2026, 9:00 AM - 12:00pm CDT
Presenter: Jarrod Longcor
2026 Financial Highlights
Conference Call & Webcast
Cellectar management will host a conference
call and webcast today, May 14, 2026, at 8:30 AM Eastern Time to discuss these results and answer questions. Stockholders and other
interested parties may participate in the conference call by dialing 1-800-717-1738. A live webcast of the conference call can be accessed
in the "Events & Presentations" section of Cellectar's website at www.cellectar.com. A recording of
the webcast will be available and archived on the Company's website for approximately 90 days.
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, which is a PDC designed to provide targeted delivery of iodine-131 (radioisotope). Iopofosine I 131 has been
tested in Phase 2b trials as a treatment for relapsed or refractory Waldenstr m Macroglobulinemia (WM), in relapsed or refractory
multiple myeloma (MM) and central nervous system (CNS) lymphoma. The CLOVER-2 Phase 1b study is evaluating iopofosine I 131 in 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 PRIority MEdicines (PRIME) designation.
Cellectar is also developing CLR 121125
(CLR 125), an iodine-125 Auger-emitting program targeted for solid tumors, such as triple negative breast (TNBC), lung, and colorectal
cancer, and is currently being evaluated in a Phase 1b study for TNBC, which will determine the recommended dose for the subsequent Phase
2 trial. CLR 125 has been well tolerated in vivo and has demonstrated strong preclinical data showing reduction or inhibition of solid
In addition to these assets, the Cellectar
team is developing CLR 121225 (CLR 225), an actinium-225 based program targeting solid tumors in indications with significant unmet need,
such as pancreatic cancer, as well as proprietary preclinical PDC chemotherapeutic programs and multiple partnered PDC assets.
For more information, please visit https://www.cellectar.com/or
join the conversation by liking and following us on the company's social media channels: X, LinkedIn, and Facebook.
Forward Looking Statements Disclaimer
This 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 quarterly period ended March 31, 2026. These forward-looking statements
are made only as of the date hereof, and we disclaim any obligation to update any such forward-looking statements.
CELLECTAR BIOSCIENCES, INC.
CONDENSED CONSOLIDATED
March 31, December 31,
2026 2025
ASSETS
CURRENT ASSETS:
Cash and cash equivalents $ 8,347,090 $ 13,196,033
Prepaid expenses and other current assets 920,038 842,432
Total current assets 9,267,128 14,038,465
Property, plant & equipment, net 339,697 549,405
Operating lease right-of-use asset 1,483,156 360,671
Other long-term assets 29,780 29,780
TOTAL ASSETS $ 11,119,761 $ 14,978,321
LIABILITIES AND STOCKHOLDERS' EQUITY (DEFICIT)
CURRENT LIABILITIES:
Accounts payable and accrued liabilities $ 4,724,826 $ 4,423,548
Warrant liability 149,000 226,000
Lease liability, current - 100,189
Total current liabilities 4,873,826 4,749,737
Lease liability, net of current portion 1,528,825 309,397
TOTAL LIABILITIES 6,402,651 5,059,134
COMMITMENTS AND CONTINGENCIES (Note 7)
MEZZANINE EQUITY:
Series D preferred stock, 111.11 shares authorized, issued and outstanding as of March 31, 2026 and December 31, 2025 1,382,023 1,382,023
STOCKHOLDERS' EQUITY:
Series E-2 preferred stock, 1,225.00 shares authorized; 35.60 shares issued and outstanding as of March 31, 2026 and December 31, 2025 520,778 520,778
Common stock, $0.00001 par value; 170,000,000 shares authorized; 4,240,129 shares issued and outstanding as of March 31, 2026 and December 31, 2025 42 42
Additional paid-in capital 277,601,713 277,149,844
Accumulated deficit (274,787,446 ) (269,133,500 )
Total stockholders' equity (deficit) 3,335,087 8,537,164
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY $ 11,119,761 $ 14,978,321
CELLECTAR BIOSCIENCES, INC.
CONDENSED CONSOLIDATED
STATEMENTS OF OPERATIONS
Three Months Ended March 31,
2026 2025
OPERATING EXPENSES:
Research and development $ 3,007,229 $ 3,427,095
General and administrative 2,786,713 2,973,896
Total operating expenses 5,793,942 6,400,991
LOSS FROM OPERATIONS (5,793,942 ) (6,400,991 )
OTHER INCOME (EXPENSE):
Gain (loss) on valuation of warrants 77,000 (340,000 )
Interest income 62,996 136,962
Total other income (expense) 139,996 (203,038 )
NET LOSS $ (5,653,946 ) $ (6,604,029 )
NET LOSS PER SHARE - BASIC AND DILUTED $ (1.33 ) $ (4.30 )
WEIGHTED-AVERAGE COMMON SHARES OUTSTANDING - BASIC AND DILUTED 4,240,129 1,535,995

Frequently Asked Questions

What are the recent financial highlights for Cellectar Biosciences?

Cellectar reported financial results for Q1 2026, leveraging up to $140 million to advance their pipeline.

What is Iopofosine I-131 used for?

Iopofosine I-131 targets relapsed or refractory Waldenström Macroglobulinemia among other cancers.

What was the overall response rate in the CLOVER-WaM study?

The CLOVER-WaM study reported an overall response rate of 83.6%.

What recent study was initiated for CLR 125?

Cellectar initiated a Phase 1b study of CLR 125 in triple negative breast cancer.

How can I access the latest conference call from Cellectar?

The conference call can be accessed at 8:30 AM ET on their website under 'Events & Presentations.'

Last updated: May 14, 2026