GlobeNewswire Inc | May 10, 2021 08:30AM EDT

May 10, 2021

Initiated pivotal study of CLR 131 in Waldenstroms macroglobulinemia (WM)Received European Orphan Drug Designation for CLR 131 in WM

Strong cash position of approximately $54 million providing cash runway into Q3 2023

FLORHAM PARK, N.J., May 10, 2021 (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 first quarter ended March 31, 2021 and provided a corporate update.

First Quarter and Recent Corporate Highlights

-- Initiated pivotal study of CLR 131 in Waldenstroms macroglobulinemia (CLOVER-WaM)Pivotal study is designed as a global, single arm, non-comparator, expansion cohort of the currently ongoing Phase 2 CLOVER-1 study of CLR 131 and its design is in alignment with feedback received from the U.S. FDA from Cellectars September 2020 guidance meetingThe study will enroll 50 relapsed/refractory WM patientsThe primary endpoint of the study is major response rate defined as a partial response or better (a minimum of a 50% reduction in the biological marker IgM) -- Received Orphan Drug Designation from the European Commission for CLR 131 in Waldenstroms macroglobulinemia (WM) which provides 10 years of European market exclusivity and certain benefits including protocol assistance, reduced EU regulatory filing and associated fees -- Strengthened its global Intellectual Property portfolio with granted patents in Japan, Eurasia, Australia and Mexico. These patents, entitled: Phospholipid-Ether Analogs as Cancer-Targeting Drug Vehicles, provides composition of matter and use protection for the companys proprietary phospholipid-ether (PLE) analogs as a targeted delivery vehicle in combination with a broad range of commonly used chemotherapeutic classes such as alkaloids, nucleoside analogs, as well as other classes of small molecule chemotherapeutic agents

During the first quarter, we focused on clinical study execution, ramped-up our pivotal study in Waldenstroms macroglobulinemia and further enriched our refractory multiple myeloma data set, said James Caruso, president and CEO of Cellectar. We also continue to make progress in our pediatric study of CLR 131 in children with relapsed or refractory solid tumors or malignant brain tumors and remain well positioned financially with a cash runway supporting our current strategic plan into the third quarter of 2023.

First Quarter Financial Highlights

Cash and Cash Equivalents: As of March 31, 2021, the company had cash and cash equivalents of $53.6 million compared to $57.2 million at December 31, 2020.

Research and Development Expense: Research and development expense for the three months ended March 31, 2021 was approximately $4.6 million compared to approximately $2.6 million for the three months ended March 31, 2020. The overall increase in research and development expense of $2.0 million was primarily a result of costs related to our WM pivotal study. General research and development costs increased because of increased personnel and related costs offset by a decrease in manufacturing and related costs and preclinical study costs.

General and Administrative Expense: General and administrative expense for the three months ended March 31, 2021 was approximately $1.7 million, compared to approximately $1.3 million for the three months ended March 31, 2020. The overall increase in general and administrative expense of $384,000 was primarily a result of professional fees and insurance.

Net Loss: The net loss attributable to common stockholders for the three months ended March 31, 2021 was ($6.4) million, or ($0.13) per share, compared to ($4.0) million, or ($0.42) per share, for the three months ended March 31, 2020.

AboutCellectar Biosciences, Inc.Cellectar Biosciences is focused on the discovery and development of drugs for the treatment of cancer. The company is developing proprietary drugs independently and through research and development collaborations. The companys core objective is to leverage its proprietary Phospholipid Drug Conjugate (PDC) delivery platform to develop PDCs that specifically target cancer cells, delivering improved efficacy and better safety as a result of fewer off-target effects. The companys PDC platform possesses the potential for the discovery and development of the next-generation of cancer-targeting treatments, and it plans to develop PDCs independently and through research and development collaborations.

The companys product pipeline includes CLR 131, a small-molecule PDC designed to provide targeted delivery of iodine-131 (radioisotope) and proprietary preclinical PDC chemotherapeutic programs and multiple partnered PDC assets.

For more information, please visit www.cellectar.com or join the conversation by liking and following us on the companys social media channels: Twitter, LinkedIn, and Facebook.

Forward-Looking Statement 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 including our expectations of the impact of the COVID-19 pandemic. 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 raise additional capital, uncertainties related to the disruptions at our sole source supplier of CLR 131, the ability to attract and retain partners for our technologies, the identification of lead compounds, the successful preclinical development thereof, patient enrollment and the completion of clinical studies, the FDA review process and other government regulation, our ability to maintain orphan drug designation in the United States for CLR 131, the volatile market for priority review vouchers, our pharmaceutical collaborators' ability to successfully develop and commercialize drug candidates, competition from other pharmaceutical companies, product pricing and third-party reimbursement. 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, 2020. These forward-looking statements are made only as of the date hereof, and we disclaim any obligation to update any such forward-looking statements.

Contacts

Investors:

Monique KosseManaging DirectorLifeSci Advisors212-915-3820monique@lifesciadvisors.com

CELLECTAR BIOSCIENCES, INC. CONDENSED CONSOLIDATED BALANCE SHEETS

March 31, December 31, 2021 2020 (Unaudited)ASSETS CURRENT ASSETS: Cash and cash equivalents $ 53,626,722 $ 57,165,377 Prepaid expenses and other current assets 774,886 774,432 Total current assets 54,401,608 57,939,809 Fixed assets, net 317,915 355,982 Right-of-use asset, net 264,042 282,365 Long-term assets 75,000 75,000 Other assets 6,214 6,214 TOTAL ASSETS $ 55,064,779 $ 58,659,370 LIABILITIES AND STOCKHOLDERS? EQUITY CURRENT LIABILITIES: Accounts payable and accrued liabilities $ 4,895,981 $ 3,443,197 Lease liability 123,643 119,904 Total current liabilities 5,019,624 3,563,101 Long-term lease liability 269,308 301,740 TOTAL LIABILITIES 5,288,932 3,864,841 COMMITMENTS AND CONTINGENCIES (Note 7) STOCKHOLDERS? EQUITY: Preferred stock, $0.00001 par value;7,000 shares authorized; Series C preferred stock: 0 and 215 ? 1,148,204 issued and outstanding as of March 31, 2021 and December 31, 2020,respectivelySeries D preferred stock: 945 and 1,519issued and outstanding as of March 31, 11,747,197 18,887,645 2021 and December 31, 2020respectivelyCommon stock, $0.00001 par value;160,000,000 and 80,000,000 sharesauthorized as of March 31, 2021 and December 31, 527 454 2020; 52,726,278 and 45,442,729 shares issued and outstanding as of March 31,2021 and December 31, 2020, respectivelyAdditional paid-in capital 171,160,720 161,533,653 Accumulated deficit (133,132,597 ) (126,775,427 )Total stockholders? equity 49,775,847 54,794,529 TOTAL LIABILITIES AND STOCKHOLDERS? $ 55,064,779 $ 58,659,370 EQUITY

CELLECTAR BIOSCIENCES, INC.CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS(UNAUDITED)

Three Months Ended March31, 2021 2020 COSTS AND EXPENSES: Research and development $ 4,633,194 $ 2,616,337 General and administrative 1,726,338 1,342,318 Total costs and expenses 6,359,532 3,958,655 LOSS FROM OPERATIONS (6,359,532 ) (3,958,655 ) OTHER INCOME: Interest income, net 2,362 1,047 Total other income, net 2,362 1,047 NET LOSS $ (6,357,170 ) $ (3,957,608 )BASIC AND DILUTED NET LOSS ATTRIBUTABLETO COMMON $ (0.13 ) $ (0.42 )STOCKHOLDERS PER COMMON SHARESHARES USED IN COMPUTING BASIC ANDDILUTED NET LOSS ATTRIBUTABLE TO COMMON STOCKHOLDERS 48,139,189 9,389,661 PER COMMON SHARE