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NuCana Reports Fourth Quarter and Year-End 2024 Financial Results and Provides Business Update

Remains on Track to Initiate an Expansion Study of NUC-7738 in Combination with Pembrolizumab for Patients with PD-1 Inhibitor-Resistant Melanoma in 2025

Data from the Expansion Study to Support Interaction with FDA and Define Regulatory Strategy for NUC-7738

Data from the Ongoing Phase 1b/2 Study of NUC-3373 in Combination with Pembrolizumab

Anticipated Cash Runway Extended into Q3 2025

EDINBURGH, United Kingdom, March 20, 2025 (GLOBE NEWSWIRE) -- NuCana plc (NASDAQ: NCNA) announced financial results for the fourth quarter and year ended December 31, 2024 and provided an update on its clinical development program with its two lead anti-cancer medicines.

鈥淭hroughout 2024, we shared multiple data updates from our two lead anti-cancer medicines, NUC-7738 and NUC-3373,鈥� said Hugh S. Griffith, NuCana鈥檚 Founder and Chief Executive Officer. 鈥淥ur lead program, NUC-7738, is a novel agent that profoundly impacts gene expression in cancer cells and targets multiple aspects of the tumor microenvironment. Over the past year, we presented data highlighting NUC-7738鈥檚 potential, when used in combination with pembrolizumab, to reduce tumor volume and prolong progression free survival in PD-1 inhibitor refractory and resistant patients with metastatic melanoma in the NuTide:701 study. Notably, disease control was observed in 75% (9/12) of the patients, five of whom had tumor reductions, with two patients achieving Partial Responses. Seven of the 12 patients had a progression free survival time of greater than five months, which is highly atypical in this patient population. Equally important, the combination has shown a favorable safety profile.鈥�

Mr. Griffith added, 鈥淓ncouraged by these findings, we are excited to further evaluate NUC-7738鈥檚 potential in an expansion of the NuTide:701 study for patients with PD-1 inhibitor-resistant melanoma. We plan to initiate this expansion study and provide data updates later this year. In addition, we plan to meet with the U.S. Food and Drug Administration to seek guidance on the optimal registration strategy for NUC-7738 as we look to advance it towards approval.鈥�

Mr. Griffith continued, 鈥淭urning to NUC-3373, our second anti-cancer program is a targeted thymidylate synthase inhibitor with immune modulating properties. It is currently being evaluated in a Phase 1b/2 study known as NuTide:303, which has two separate modules. One module is studying NUC-3373 in combination with pembrolizumab for patients with advanced solid tumors and the second module is studying NUC-3373 with docetaxel for patients with lung cancer. We are excited with the data we have seen from the NuTide:303 study and are particularly encouraged by the significant tumor volume reductions and prolonged progression free survival observed. Two patients achieved Partial Responses, including a patient with urothelial bladder cancer who achieved 100% reduction in their target lesions. While we were disappointed with the surprising and unexpected outcome of the NuTide:323 study of NUC-3373 in combination with leucovorin, irinotecan, and bevacizumab in patients with advanced colorectal cancer, we are continuing to evaluate further potential pathways for NUC-3373 in this challenging indication. We look forward to generating further data from this program as we work towards our mission of improving treatment outcomes for patients with cancer which drives our relentless pursuit of the development of new anti-cancer agents.鈥�

Mr. Griffith concluded, 鈥淚n addition to the clinical advancements we have made, we have also strengthened our intellectual property portfolio with the addition of a new granted patent by the United States Patent and Trademark Office covering NUC-7738鈥檚 composition of matter. Looking ahead in 2025, we are on track to advance both NUC-7738 and NUC-3373 and are excited to provide updates on our success with these programs throughout the year.鈥�

2025 Anticipated Milestones

• NUC-7738
  
  
  • Initiate an expansion of the Phase 1/2 study (NuTide:701) of NUC-7738 in combination with pembrolizumab in patients with melanoma;
    
  • Announce data from the Phase 1/2 expansion study (NuTide:701) of NUC-7738 in combination with pembrolizumab; and
  • Obtain regulatory guidance from the U.S. Food and Drug Administration on pivotal study design for NUC-7738 in melanoma.
    
    
• NUC-3373
  
  
  • Announce data from the Phase 1b/2 modular study (NuTide:303) of NUC-3373 in combination with pembrolizumab in patients with solid tumors.
    

Fourth Quarter and Year-End 2024 Financial Highlights and Cash Position

As of December 31, 2024, NuCana had cash and cash equivalents of 拢6.7 million compared to 拢11.4 million as of September 30, 2024 and 拢17.2 million as of December 31, 2023. The reduction in cash and cash equivalents during the fourth quarter was primarily the result of cash used in operating activities, partially offset by 拢2.2 million in net proceeds raised through its at-the-market (ATM) offering. Subsequent to December 31, 2024, NuCana has raised an additional 拢0.5 million in net proceeds through its ATM offering. NuCana expects that its cash and cash equivalents as of December 31, 2024, together with amounts raised through its ATM offering subsequent to that date, will be sufficient to fund its planned operations into Q3 2025.

NuCana continues to advance its various clinical programs and reported a net loss of 拢0.7 million for the quarter ended December 31, 2024, as compared to a net loss of 拢7.7 million for the quarter ended December 31, 2023. Net loss for the year ended December 31, 2024 was 拢19.0 million, compared to a net loss of 拢27.6 million for the year ended December 31, 2023. Basic and diluted loss per ordinary share was 拢0.01 for the quarter and 拢0.26 for the year ended December 31, 2024, as compared to 拢0.14 per ordinary share for the comparable quarter and 拢0.53 for the year ended December 31, 2023.

About NuCana

NuCana is a clinical-stage biopharmaceutical company focused on significantly improving treatment outcomes for patients with cancer by applying our ProTide technology to transform some of the most widely prescribed chemotherapy agents, nucleoside analogs, into more effective and safer medicines. While these conventional agents remain part of the standard of care for the treatment of many solid and hematological tumors, they have significant shortcomings that limit their efficacy and they are often poorly tolerated. Utilizing our proprietary technology, we are developing new medicines, ProTides, designed to overcome the key limitations of nucleoside analogs and generate much higher concentrations of anti-cancer metabolites in cancer cells. NuCana鈥檚 pipeline includes NUC-3373 and NUC-7738. NUC-3373 is a new chemical entity derived from the nucleoside analog 5-fluorouracil, a widely used chemotherapy agent. NUC-3373 is currently being evaluated in a Phase 1b/2 modular study (NuTide:303) of NUC-3373 in combination with the PD-1 inhibitor pembrolizumab for patients with advanced solid tumors and in combination with docetaxel for patients with lung cancer. NUC-7738 is a novel anti-cancer agent that disrupts RNA polyadenylation, profoundly impacts gene expression in cancer cells and targets multiple aspects of the tumor microenvironment. NUC-7738 is in the Phase 2 part of a Phase 1/2 study which is evaluating NUC-7738 as a monotherapy in patients with advanced solid tumors and in combination with pembrolizumab in patients with melanoma.

Forward-Looking Statements
This press release may contain 鈥渇orward-looking鈥� statements within the meaning of the Private Securities Litigation Reform Act of 1995 that are based on the beliefs and assumptions and on information currently available to management of NuCana plc (the 鈥淐ompany鈥�). All statements other than statements of historical fact contained in this press release are forward-looking statements, including statements concerning the Company鈥檚 planned and ongoing clinical studies for the Company鈥檚 product candidates and the potential advantages of those product candidates, including NUC-3373 and NUC-7738; the initiation, enrollment, timing, progress, release of data from and results of those planned and ongoing clinical studies; the Company鈥檚 goals with respect to the development, regulatory pathway and potential use, if approved, of each of its product candidates; the utility of prior non-clinical and clinical data in determining future clinical results; and the sufficiency of the Company鈥檚 current cash and cash equivalents to fund its planned operations into Q3 2025. In some cases, you can identify forward-looking statements by terminology such as 鈥渕ay,鈥� 鈥渨ill,鈥� 鈥渟hould,鈥� 鈥渆xpects,鈥� 鈥減lans,鈥� 鈥渁nticipates,鈥� 鈥渂elieves,鈥� 鈥渆stimates,鈥� 鈥減redicts,鈥� 鈥減otential鈥� or 鈥渃ontinue鈥� or the negative of these terms or other comparable terminology. Forward-looking statements involve known and unknown risks, uncertainties and other factors that may cause the Company鈥檚 actual results, performance or achievements to be materially different from any future results, performance or achievements expressed or implied by the forward-looking statements. These risks and uncertainties include, but are not limited to, our ability to raise additional capital sufficient to fund our planned operations and the risks and uncertainties set forth in the 鈥淩isk Factors鈥� section of the Company鈥檚 Annual Report on Form 20-F for the year ended December 31, 2024 filed with the Securities and Exchange Commission (鈥淪EC鈥�) on March 20, 2025, and subsequent reports that the Company files with the SEC. Forward-looking statements represent the Company鈥檚 beliefs and assumptions only as of the date of this press release. Although the Company believes that the expectations reflected in the forward-looking statements are reasonable, it cannot guarantee future results, levels of activity, performance or achievements. Except as required by law, the Company assumes no obligation to publicly update any forward-looking statements for any reason after the date of this press release to conform any of the forward-looking statements to actual results or to changes in its expectations.

For more information, please contact:

NuCana plc
Hugh S. Griffith
Chief Executive Officer
+44 131-357-1111

ICR Healthcare
Chris Brinzey
+1 339-970-2843