NCNA

Final Data from Phase 2 Expansion Study of NUC-7738 Remains on Track for 2026 Advancing Additional Indications and Combination Strategies for NUC-7738 Cash Runway Expected to Extend into 2029 EDINBURGH, United Kingdom, Aug. 13, 2026 (GLOBE NEWSWIRE) -- NuCana plc (NASDAQ: NCNA) (“NuCana” or the “Company”) today announced financial results for the second quarter ended June 30, 2026 and provided an update on its clinical development program with its two lead anti-cancer medicines. “NuCana continues to build momentum as we advance NUC-7738 closer to several important clinical and regulatory milestones,” said Hugh S. Griffith, NuCana's Founder and Chief Executive Officer. “We are pleased to announce that recruitment is now complete in our Phase 2 NuTide:701 expansion study evaluating NUC-7738 in combination with Keytruda® (pembrolizumab) in patients with PD-1 inhibitor-resistant metastatic melanoma. Based on the data presented to date, we remain confident in the benefit NUC-7738 may offer these patients, and we remain on track to present final data from this study later this year. Following the Investigational New Drug application (“IND”) clearance from the U.S. Food and Drug Administration (the “FDA”) earlier this year, we look forward to continuing our dialogue with the FDA to determine the optimal path toward a potential registrational strategy for NUC-7738 in melanoma.” Mr. Griffith continued, “We believe NUC-7738's ability to disrupt RNA polyadenylation and act on multiple aspects of the tumor microenvironment could make an impact across a broad range of tumor types. The Company continues to assess potential additional indications, subject to emerging data and portfolio prioritization.” Mr. Griffith concluded, “None of this progress would be possible without a strong financial foundation. With cash resources anticipated to fund our operations into 2029, we have the flexibility to keep advancing our pipeline, including evaluating additional indications and combination strategies for NUC-7738 and NUC-3373. We look forward to delivering on our milestones over the remainder of 2026.” 2026 Anticipated Milestones NUC-7738 NUC-3373 Second Quarter 2026 Financial Highlights and Cash Position As at June 30, 2026, NuCana had cash and cash equivalents of £19.5 million compared to £21.5 million at March 31, 2026 and £24.3 million at December 31, 2025. NuCana anticipates its cash and cash equivalents at June 30, 2026 will be sufficient to fund its planned operations into 2029. NuCana reported a net loss of £3.1 million for the quarter ended June 30, 2026, as compared to a net loss of £24.1 million for the quarter ended June 30, 2025. Basic and diluted loss per ordinary share was £0.00 for the quarter ended June 30, 2026, as compared to a loss per ordinary share of £0.00 for the comparable quarter ended June 30, 2025. NuCana reported a net loss of £6.9 million for the six months ended June 30, 2026, as compared to a net loss of £26.6 million for the six months ended June 30, 2025. The net loss for the six months ended June 30, 2026 and for the comparable period included the following non-cash or non-recurring items: Share-based payment expenses of £2.8 million (2025: £8.2 million); Professional fees of £nil (2025: £1.4 million) related to the issue of warrants; and Finance expense of £nil (2025: £12.6 million) relating to the non-cash loss on fair value revaluation of the warrants issued in the May 2025 financing. Basic and diluted loss per ordinary share was £0.00 for the six months ended June 30, 2026, as compared to a loss per ordinary share of £0.01 for the comparable six months ended June 30, 2025. 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’s pipeline includes NUC-7738 and NUC-3373. 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. NUC-3373 is a targeted thymidylate synthase (“TS”) inhibitor designed to overcome key pharmacological limitations associated with other TS inhibitors. NUC-3373 has recently been 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, and NuCana is currently evaluating further characterization of mode of action and target indications for further clinical studies of NUC-3373. Forward-Looking StatementsThis press release may contain “forward-looking” 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 the Company. All statements other than statements of historical fact contained in this press release are forward-looking statements, including statements concerning the Company’s planned and ongoing clinical studies for the Company’s product candidates and the potential advantages of those product candidates, including NUC-7738 and NUC-3373; the initiation, enrollment, timing, progress, release of data from and results of those planned and ongoing clinical studies; the Company’s 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’s current cash and cash equivalents to fund its planned operations into 2029. In some cases, you can identify forward-looking statements by terminology such as “may,” “will,” “should,” “expects,” “plans,” “anticipates,” “believes,” “estimates,” “predicts,” “potential” or “continue” 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’s 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 “Risk Factors” section of the Company’s Annual Report on Form 20-F for the year ended December 31, 2025 filed with the Securities and Exchange Commission (“SEC”) on March 19, 2026, and subsequent reports that the Company files with the SEC. Forward-looking statements represent the Company’s 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.Unaudited Condensed Consolidated Statements of Operations Unaudited Condensed Consolidated Statements of Financial Position As At Unaudited Condensed Consolidated Statements of Cash Flows For more information, please contact: NuCana plcHugh S. GriffithChief Executive Officer+44 131-357-1111 [email protected] ICR HealthcareChris Brinzey+1 [email protected]

Final Data from Phase 2 Expansion Study of NUC-7738 Expected in 2026 NUC-7738 Receives FDA IND Clearance: Planned Initial Studies to Focus on Melanoma Advancing Additional Indications and Combination Strategies Cash Runway Expected to Extend into 2029 EDINBURGH, United Kingdom, May 14, 2026 (GLOBE NEWSWIRE) -- NuCana plc (NASDAQ: NCNA) (“NuCana” or the “Company”) today announced financial results for the first quarter ended March 31, 2026 and provided an update on its clinical development program with its two lead anti-cancer medicines. "We are pleased to report continued progress in the first quarter of 2026 as NUC-7738 advances towards important clinical and regulatory milestones," said Hugh S. Griffith, NuCana's Founder and Chief Executive Officer. "During the quarter, we continued to advance enrollment for our Phase 2 NuTide:701 expansion study evaluating NUC-7738 in combination with Keytruda® (pembrolizumab) in patients with PD-1 inhibitor-resistant metastatic melanoma. The clinical activity and favorable safety profile previously reported, including confirmed objective responses and prolonged disease control, continue to support the therapeutic potential of NUC-7738 in this patient population, and we look forward to reporting final data from this study, which is expected later in 2026." "We are also delighted to announce that the U.S. Food and Drug Administration (the “FDA”) cleared our Investigational New Drug application (“IND”) for NUC-7738 in April 2026. This important milestone enables clinical investigation of NUC-7738 in the United States and we expect our initial focus will be in patients with melanoma. We look forward to advancing our dialogue with the FDA to determine the optimal pathway toward a potential registrational strategy for NUC-7738 in melanoma." Mr. Griffith continued, "Beyond our near-term, anticipated milestones in melanoma, we are actively exploring opportunities to broaden the clinical utility of NUC-7738 through additional indications and combination strategies. The mechanism of action of NUC-7738, disrupting RNA polyadenylation and targeting multiple aspects of the tumor microenvironment, positions it as a potentially versatile agent across a range of tumor types, and we are encouraged by the scientific rationale supporting its evaluation in new settings. We believe these efforts have the potential to significantly expand the long-term value of NUC-7738 for patients and for NuCana." Mr. Griffith concluded, "Our strong balance sheet, with cash resources expected to fund operations into 2029, provides us with the financial flexibility to execute on our strategic priorities and advance our pipeline. We look forward to achieving important anticipated milestones throughout the remainder of 2026." 2026 Anticipated Milestones NUC-7738 Complete patient recruitment in the Phase 2 expansion study (NuTide:701) evaluating NUC-7738 in combination with pembrolizumab in patients with PD-1 inhibitor-resistant melanoma; Announce final data from the Phase 2 expansion study (NuTide:701) of NUC-7738 in combination with pembrolizumab in patients with PD-1 inhibitor-resistant melanoma; Obtain regulatory guidance from the FDA regarding a potential registrational strategy for NUC-7738 in melanoma; and Advance evaluation of additional indications and combination strategies. NUC-3373 Complete evaluation of optimal combinations and indications to inform potential future clinical studies of NUC-3373. First Quarter 2026 Financial Highlights and Cash Position As at March 31, 2026, NuCana had cash and cash equivalents of £21.5 million compared to £24.3 million at December 31, 2025. NuCana anticipates its cash and cash equivalents at March 31, 2026 will be sufficient to fund its planned operations into 2029. NuCana reported a net loss of £3.9 million for the quarter ended March 31, 2026, as compared to a net loss of £2.5 million for the quarter ended March 31, 2025. The net loss for the quarter ended March 31, 2026 included non-cash share-based payment expenses of £1.9 million (2025: £0.3 million). Basic and diluted loss per ordinary share was £0.00 for the quarter ended March 31, 2026, as compared to a loss per ordinary share of £0.02 for the comparable quarter ended March 31, 2025. 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’s pipeline includes NUC-7738 and NUC-3373. 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. NUC-3373 is a targeted thymidylate synthase (“TS”) inhibitor designed to overcome key pharmacological limitations associated with other TS inhibitors. NUC-3373 has recently been 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, and NuCana is currently evaluating further characterization of mode of action and target indications for further clinical studies of NUC-3373. Forward-Looking Statements This press release may contain “forward-looking” 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 the Company. All statements other than statements of historical fact contained in this press release are forward-looking statements, including statements concerning the Company’s planned and ongoing clinical studies for the Company’s product candidates and the potential advantages of those product candidates, including NUC-7738 and NUC-3373; the initiation, enrollment, timing, progress, release of data from and results of those planned and ongoing clinical studies; the Company’s 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’s current cash and cash equivalents to fund its planned operations into 2029. In some cases, you can identify forward-looking statements by terminology such as “may,” “will,” “should,” “expects,” “plans,” “anticipates,” “believes,” “estimates,” “predicts,” “potential” or “continue” 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’s 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 “Risk Factors” section of the Company’s Annual Report on Form 20-F for the year ended December 31, 2025 filed with the Securities and Exchange Commission (“SEC”) on March 19, 2026, and subsequent reports that the Company files with the SEC. Forward-looking statements represent the Company’s 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 [email protected] ICR Healthcare Chris Brinzey +1 339-970-2843 [email protected]

NUC-7738 Demonstrates Clinical Activity and Favorable Safety in Patients with PD-1 Inhibitor-Resistant Melanoma Final Data from Phase 2 Expansion Study of NUC-7738 Expected in 2026 Advancing Additional Indications and Combination Strategies Cash Runway Expected to Extend into 2029 EDINBURGH, United Kingdom, March 19, 2026 (GLOBE NEWSWIRE) -- NuCana plc (NASDAQ: NCNA) (“NuCana” or the “Company”) today announced financial results for the fourth quarter and year ended December 31, 2025 and provided an update on its clinical development program with its two lead anti-cancer medicines. “We are excited to enter 2026 with significant momentum as we continue to advance the development of our ProTide pipeline with the aim to deliver significantly improved treatment outcomes for patients with cancer,” said Hugh S. Griffith, NuCana’s Chief Executive Officer. “In late 2025, we presented compelling data from our Phase 2 NuTide:701 study at the annual European Society for Medical Oncology Immuno-Oncology Congress, evaluating NUC-7738 in combination with pembrolizumab in patients with PD-1 inhibitor-resistant metastatic melanoma. These data demonstrated a favorable safety profile and evidence of clinical activity, including two partial responses, one of which was confirmed, and multiple cases of stable disease, including one patient whose disease converted to a complete metabolic response with no detectable active disease.” Mr. Griffith continued, “We expect to complete enrollment in the Phase 2 NuTide:701 expansion study in the first half of 2026, with final data expected later this year. We also plan to obtain regulatory guidance from the U.S. Food and Drug Administration regarding a potential registrational pathway for NUC-7738 in melanoma. In parallel, we are evaluating additional indications and combination strategies to further explore the therapeutic potential of NUC-7738.” Mr. Griffith concluded, “Earlier this year we appointed Theresa Bruce as our Chief Operating Officer. Ms. Bruce brings over 25 years of oncology research and development experience, and her operational leadership will support the continued advancement of our pipeline. Based on our current operating plan, we expect our existing cash resources to fund operations into 2029, positioning us to execute on our key anticipated clinical and regulatory objectives.” 2026 Anticipated Milestones NUC-7738 Complete patient recruitment in the Phase 2 expansion study (NuTide:701) evaluating NUC-7738 in combination with pembrolizumab in patients with PD-1 resistant melanoma; Announce final data from the Phase 2 expansion study (NuTide:701) of NUC-7738 in combination with pembrolizumab in patients with PD-1 resistant melanoma; Obtain regulatory guidance from the U.S. Food and Drug Administration regarding a potential registrational strategy for NUC-7738 in melanoma; and Advance evaluation of additional indications and combination strategies. NUC-3373 Evaluate optimal combinations and indications to inform potential future clinical studies of NUC-3373. Fourth Quarter and Year-End 2025 Financial Highlights and Cash Position As at December 31, 2025, NuCana had cash and cash equivalents of £24.3 million compared to £25.2 million at September 30, 2025 and £6.7 million at December 31, 2024. In May 2025, NuCana completed a financing, raising £9.6 million in gross proceeds, £5.2 million upfront and £4.4 million from the exercise of warrants, before expenses and commissions. Subsequently, in July 2025, NuCana raised, through the at-the-market program, £19.0 million in gross proceeds before expenses and commissions. On July 21, 2025, having raised the full amount of capital required, NuCana announced it had successfully canceled all remaining Series A Warrants issued in the May 2025 financing, in exchange for payments totaling $3.6 million. This initiative fully eliminated all overhanging rights from the May 2025 financing. NuCana anticipates its cash and cash equivalents at December 31, 2025 will be sufficient to fund its planned operations into 2029. NuCana reported a net loss of £2.5 million for the quarter ended December 31, 2025, as compared to a net loss of £0.7 million for the quarter ended December 31, 2024. Basic and diluted loss per ordinary share was £0.00 for the quarter ended December 31, 2025, as compared to a loss per ordinary share of £0.01 for the comparable quarter ended December 31, 2024. NuCana reported a net loss of £29.4 million for the year ended December 31, 2025, as compared to a net loss of £19.0 million for the year ended December 31, 2024. The net loss for the year ended December 31, 2025 included the following non-cash or non-recurring items: Finance expense of £12.6 million (2024: £nil) relating to the non-cash loss on fair value revaluation of the warrants issued in the May 2025 financing; Professional fees of £1.4 million (2024: £nil) related to the issue of warrants; and Share-based payment expenses of £10.0 million (2024: £1.6 million); partly offset by Total other income of £2.7 million (2024: £nil). Basic and diluted loss per ordinary share was £0.00 for the year ended December 31, 2025, as compared to a loss per ordinary share of £0.26 for the year ended December 31, 2024. 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’s pipeline includes NUC-7738 and NUC-3373. 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. NUC-3373 is a targeted thymidylate synthase (“TS”) inhibitor designed to overcome key pharmacological limitations associated with other TS inhibitors. NUC-3373 has recently been 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, and NuCana is currently evaluating further characterization of mode of action and target indications for further clinical studies of NUC-3373. Forward-Looking Statements This press release may contain “forward-looking” 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 the Company. All statements other than statements of historical fact contained in this press release are forward-looking statements, including statements concerning the Company’s planned and ongoing clinical studies for the Company’s product candidates and the potential advantages of those product candidates, including NUC-7738 and NUC-3373; the initiation, enrollment, timing, progress, release of data from and results of those planned and ongoing clinical studies; the Company’s 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’s current cash and cash equivalents to fund its planned operations into 2029. In some cases, you can identify forward-looking statements by terminology such as “may,” “will,” “should,” “expects,” “plans,” “anticipates,” “believes,” “estimates,” “predicts,” “potential” or “continue” 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’s 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 “Risk Factors” section of the Company’s Annual Report on Form 20-F for the year ended December 31, 2025 filed with the Securities and Exchange Commission (“SEC”) on March 19, 2026, and subsequent reports that the Company files with the SEC. Forward-looking statements represent the Company’s 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. Condensed Consolidated Statements of Operations Condensed Consolidated Statements of Financial Position As At Condensed Consolidated Statements of Cash Flows For more information, please contact: NuCana plc Hugh S. Griffith Chief Executive Officer +44 131-357-1111 [email protected] ICR Healthcare Chris Brinzey +1 339-970-2843 [email protected]

Announced Encouraging Data on both NUC-7738 and NUC-3373 Initial Data from the Expansion Study of NUC-7738 Expected in Q4 2025 with Final Data Expected in 2026 Compliant with All Nasdaq Continued Listing Criteria Well Capitalized with Anticipated Cash Runway into 2029 EDINBURGH, United Kingdom, Nov. 13, 2025 (GLOBE NEWSWIRE) -- NuCana plc (NASDAQ: NCNA) (“NuCana” or the “Company”) announced financial results for the third quarter ended September 30, 2025 and provided an update on its clinical development program with its two lead anti-cancer medicines. “We recently announced promising data for both NUC-7738 and NUC-3373 that continue to support the potential of our ProTides to deliver significantly improved treatment outcomes for patients with cancer,” said Hugh S. Griffith, NuCana’s Chief Executive Officer. “For NUC-7738, we presented new data at the European Society for Medical Oncology (ESMO) Congress 2025 on NUC-7738 in combination with PD-1 inhibitors in a real-time organoid model system, which revealed that NUC-7738 enhances the effectiveness of PD-1 inhibitors, resulting in increased tumor cell killing. These data demonstrate the benefit of combining PD-1 inhibitors with NUC-7738, similar to that seen in patients on the ongoing NuTide:701 study. Based on the exciting initial data from this study, we are currently recruiting an additional 28 patients with PD-1 inhibitor-resistant melanoma and plan to meet with the U.S. Food and Drug Administration to discuss the data from this study to determine the optimal registration strategy to support potential marketing approval.” Mr. Griffith continued, “We also presented new clinical data from the NuTide:303 study, where encouraging signals of durable activity were observed in patients treated with NUC-3373 plus pembrolizumab who had exhausted all standard treatment options, including prior PD-1 inhibitors. Notably, one patient with melanoma remains progression-free at 23 months and continues to exhibit a partial response with an 81% reduction in target lesions. Another patient with urothelial carcinoma of the bladder achieved a 100% reduction in their target lesions and remained on treatment for over 15 months. These clinical findings are further supported by nonclinical data published in September 2025, which corroborate the immunogenic effects of NUC-3373 observed in patients, particularly in combination with a PD-1 inhibitor. We are currently evaluating optimal combinations and indications for further clinical studies of NUC-3373, while continuing to maintain our anticipated cash runway into 2029.” Mr. Griffith concluded, “Lastly, we have significantly strengthened our balance sheet via the strategic utilization of our at-the-market (“ATM”) program in July, extending our cash runway into 2029 and through key value-driving milestones. This initiative, together with the financing in May, raised gross proceeds of $38.4 million, and with multiple data readouts ahead, we are well-positioned to deliver on our mission of improving treatment outcomes for patients with cancer.” Anticipated Milestones NUC-7738 Announce initial data from the Phase 1/2 expansion study (NuTide:701) of NUC-7738 in combination with pembrolizumab in Q4 2025; Obtain regulatory guidance from the U.S. Food and Drug Administration on pivotal study design for NUC-7738 in melanoma in 2026; and Announce final data from the Phase 1/2 expansion study (NuTide:701) of NUC-7738 in combination with pembrolizumab in 2026. NUC-3373 Announce nonclinical data on further characterization of mode of action and target indications in 2026. Third Quarter 2025 Financial Highlights and Cash Position As of September 30, 2025, NuCana had cash and cash equivalents of £25.2 million compared to £8.4 million at June 30, 2025 and £6.7 million at December 31, 2024. In July 2025, NuCana raised, through the ATM program, £19.0 million in gross proceeds before expenses and commission. On July 21, 2025, having raised the full amount of capital required, NuCana announced it had successfully canceled all remaining Series A Warrants issued in the May 2025 financing, in exchange for payments totaling $3.6 million. This initiative fully eliminated all overhanging rights from the May 2025 financing. NuCana anticipates its cash and cash equivalents at September 30, 2025 will be sufficient to fund its planned operations into 2029. NuCana reported a net loss of £0.3 million for the quarter ended September 30, 2025, which includes other income of £2.7 million, as compared to a net loss of £4.5 million for the quarter ended September 30, 2024. Basic and diluted loss per ordinary share was £0.00 for the quarter ended September 30, 2025, as compared to a loss per ordinary share of £0.07 for the comparable quarter ended September 30, 2024. NuCana reported a net loss of £26.9 million for the nine months ended September 30, 2025, as compared to a net loss of £18.3 million for the nine months ended September 30, 2024. The net loss for the nine months ended September 30, 2025 included the following non-cash or non-recurring items: Finance expense of £12.6 million (2024: £nil) relating to the non-cash loss on fair value revaluation of the warrants issued in the May 2025 financing; Professional fees of £1.4 million (2024: £nil) related to the issue of warrants; and Share-based payment expenses of £9.1 million (2024: £1.7 million); partly offset by Other income of £2.7 million (2024: £nil). Basic and diluted loss per ordinary share was £0.00 for the nine months ended September 30, 2025, as compared to a loss per ordinary share of £0.32 for the comparable nine months ended September 30, 2024. 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’s pipeline includes NUC-7738 and NUC-3373. 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. NUC-3373 is a new chemical entity derived from the nucleoside analog 5-fluorouracil, a widely used chemotherapy agent. NUC-3373 has recently been 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, and NuCana is currently evaluating further characterization of mode of action and target indications for further clinical studies of NUC-3373. Forward-Looking Statements This press release may contain “forward-looking” 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 the Company. All statements other than statements of historical fact contained in this press release are forward-looking statements, including statements concerning the Company’s planned and ongoing clinical studies for the Company’s product candidates and the potential advantages of those product candidates, including NUC-7738 and NUC-3373; the initiation, enrollment, timing, progress, release of data from and results of those planned and ongoing clinical studies; the Company’s 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’s current cash and cash equivalents to fund its planned operations into 2029. In some cases, you can identify forward-looking statements by terminology such as “may,” “will,” “should,” “expects,” “plans,” “anticipates,” “believes,” “estimates,” “predicts,” “potential” or “continue” 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’s 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 “Risk Factors” section of the Company’s Annual Report on Form 20-F for the year ended December 31, 2024 filed with the Securities and Exchange Commission (“SEC”) on March 20, 2025, and subsequent reports that the Company files with the SEC. Forward-looking statements represent the Company’s 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. Unaudited Condensed Consolidated Statements of Operations Unaudited Condensed Consolidated Statements of Financial Position As At Unaudited Condensed Consolidated Statements of Cash Flows For more information, please contact: NuCana plc Hugh S. Griffith Chief Executive Officer +44 131-357-1111 [email protected] ICR Healthcare Chris Brinzey +1 339-970-2843 [email protected]

First Patients Dosed on Expansion Study of NUC-7738 in Combination with Pembrolizumab for Patients with PD-1 Inhibitor-Resistant Melanoma Initial Data from the Expansion Study of NUC-7738 Expected in Q4 2025 with Final Data in 2026 Additional Data from the Ongoing Phase 1b/2 Study of NUC-3373 in Combination with Pembrolizumab Remain on track for 2025 Strategic Execution of ATM Offering Extends Anticipated Cash Runway into 2029 EDINBURGH, United Kingdom, Aug. 20, 2025 (GLOBE NEWSWIRE) -- NuCana plc (NASDAQ: NCNA) (“NuCana” or the “Company”) announced financial results for the second quarter ended June 30, 2025 and provided an update on its clinical development program with its two lead anti-cancer medicines. “We are pleased to announce that the first patients have been dosed on the expansion of our ongoing Phase 1/2 NuTide:701 study in patients with PD-1 inhibitor-resistant melanoma,” said Andrew Kay, NuCana’s Executive Chairman. “Our lead program, NUC-7738 is a novel agent that profoundly impacts gene expression in cancer cells and targets multiple aspects of the tumor microenvironment. We remain encouraged by the clinical observations witnessed so far. We have observed a favorable safety profile, meaningful tumor volume reduction and prolonged progression free-survival in patients with PD-1 inhibitor refractory and resistant metastatic melanoma. The expansion study is expected to enroll an additional 28 patients, increasing the planned patient population treated in combination with pembrolizumab to 40 and further supporting our registrational path.” Mr. Kay continued, “Turning to our second program, NUC-3373 is a targeted thymidylate synthase inhibitor with immune modulating properties. We are encouraged by the data from the Phase 1b/2 NuTide:303 study, which is evaluating NUC-3373 in combination with pembrolizumab in patients with advanced solid tumors, and NUC-3373 with docetaxel in patients with lung cancer. Notable tumor volume reductions and prolonged progression free survival have been observed in these patients so far. We look forward to announcing additional data from this study later this year.” Mr. Kay concluded, “Lastly, we strengthened our balance sheet with a financing in May and the strategic execution of an at-the-market (“ATM”) offering, extending our cash runway into 2029 and through key value-driving milestones. To date in 2025, these initiatives have raised gross proceeds of $38.4 million and with multiple data readouts ahead, we are well-positioned to deliver on our mission of improving treatment outcomes for patients with cancer.” Anticipated Milestones NUC-7738 Announce initial data from the Phase 1/2 expansion study (NuTide:701) of NUC-7738 in combination with pembrolizumab in 2025; Obtain regulatory guidance from the U.S. Food and Drug Administration on pivotal study design for NUC-7738 in melanoma in 2026; and Announce final data from the Phase 1/2 expansion study (NuTide:701) of NUC-7738 in combination with pembrolizumab in 2026. NUC-3373 Announce additional data from the Phase 1b/2 modular study (NuTide:303) of NUC-3373 in combination with pembrolizumab in patients with solid tumors in 2025. Second Quarter 2025 Financial Highlights and Cash Position As of June 30, 2025, NuCana had cash and cash equivalents of £8.4 million compared to £4.0 million as of March 31, 2025 and £6.7 million at December 31, 2024. Subsequent to June 30, 2025, NuCana has raised, through the ATM offering, an additional £19.0 million in gross proceeds before expenses and commission. On July 21, 2025, having raised the full amount of capital required, NuCana announced it had successfully canceled all remaining Series A Warrants issued in the May 2025 financing, in exchange for payments of $3.6 million. This initiative fully eliminated all overhanging rights from the May 2025 financing. NuCana expects that its cash and cash equivalents as of June 30, 2025, together with amounts raised via the ATM offering, will be sufficient to fund its planned operations into 2029. NuCana continues to advance its clinical programs and reported a net loss of £24.1 million for the quarter ended June 30, 2025, which includes a loss on revaluation of the warrants issued in the May 2025 financing of £12.6 million, as compared to a net loss of £7.0 million for the quarter ended June 30, 2024. Basic and diluted loss per ordinary share was £0.00 for the quarter ended June 30, 2025, as compared to £0.12 per ordinary share for the comparable quarter ended June 30, 2024. 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’s pipeline includes NUC-7738 and NUC-3373. 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. 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. Forward-Looking Statements This press release may contain “forward-looking” 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 the Company. All statements other than statements of historical fact contained in this press release are forward-looking statements, including statements concerning the Company’s planned and ongoing clinical studies for the Company’s product candidates and the potential advantages of those product candidates, including NUC-7738 and NUC-3373; the initiation, enrollment, timing, progress, release of data from and results of those planned and ongoing clinical studies; the Company’s 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’s current cash and cash equivalents to fund its planned operations into 2029. In some cases, you can identify forward-looking statements by terminology such as “may,” “will,” “should,” “expects,” “plans,” “anticipates,” “believes,” “estimates,” “predicts,” “potential” or “continue” 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’s 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 “Risk Factors” section of the Company’s Annual Report on Form 20-F for the year ended December 31, 2024 filed with the Securities and Exchange Commission (“SEC”) on March 20, 2025, and subsequent reports that the Company files with the SEC. Forward-looking statements represent the Company’s 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. Unaudited Condensed Consolidated Statements of Operations Unaudited Condensed Consolidated Statements of Financial Position As At Unaudited Condensed Consolidated Statements of Cash Flows For more information, please contact: NuCana plc Andrew Kay Executive Chairman +44 131-357-1111 [email protected] ICR Healthcare Chris Brinzey +1 339-970-2843 [email protected]

Initiation of Expansion Study of NUC-7738 in Combination with Pembrolizumab for Patients with PD-1 Inhibitor-Resistant Melanoma Initial Data from the Expansion Study of NUC-7738 Expected in Q4 2025 with Final Data in 2026 Additional Data from the Ongoing Phase 1b/2 Study of NUC-3373 in Combination with Pembrolizumab Remain on track for 2025 Anticipated Cash Runway Extended into Q4 2026 to Support Key Value-Driving Milestones and Complete the Expansion Study of NUC-7738 EDINBURGH, United Kingdom, June 02, 2025 (GLOBE NEWSWIRE) -- NuCana plc (NASDAQ: NCNA) announced financial results for the first quarter ended March 31, 2025 and provided an update on its clinical development program with its two lead anti-cancer medicines. “We have entered 2025 with a clear focus on the advancement of our pipeline through key milestones, into late-stage development, and towards commercialization,” said Hugh S. Griffith, NuCana’s Founder and Chief Executive Officer. “Our lead program, NUC-7738, continues to show significant promise. NUC-7738 is a novel agent that profoundly impacts gene expression in cancer cells and targets multiple aspects of the tumor microenvironment. In our ongoing Phase 1/2 NuTide:701 study, we have observed a favorable safety profile, meaningful tumor volume reduction and prolonged progression free-survival in patients with PD-1 inhibitor refractory and resistant metastatic melanoma. Based on these compelling results, we have recently initiated an expansion trial of NUC-7738 in an additional 28 patients with PD-1 inhibitor-resistant melanoma, that supports our registrational path. Based on this, we plan to meet with the U.S. Food and Drug Administration to determine the optimal regulatory strategy forward towards commercialization.” Mr. Griffith continued, “Turning to our second program, NUC-3373 is a targeted thymidylate synthase inhibitor with immune modulating properties. We are encouraged by the data from the ongoing Phase 1b/2 NuTide:303 study. This study is evaluating NUC-3373 in combination with pembrolizumab in patients with advanced solid tumors, and NUC-3373 with docetaxel in patients with lung cancer. To date, we have seen notable tumor volume reductions and prolonged progression free survival in these patients. We look forward to sharing additional data from this trial later this year.” Mr. Griffith concluded, “Lastly, we strengthened our balance sheet with a financing in May, extending our cash runway through key value-driving milestones. With multiple data readouts ahead, we are well-positioned to deliver on our mission of improving treatment outcomes for patients with cancer.” 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 PD-1 inhibitor-resistant 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 additional data from the Phase 1b/2 modular study (NuTide:303) of NUC-3373 in combination with pembrolizumab in patients with solid tumors. First Quarter 2025 Financial Highlights and Cash Position As of March 31, 2025, NuCana had cash and cash equivalents of £4.0 million compared to £6.7 million at December 31, 2024. Subsequent to March 31, 2025, NuCana completed a financing, raising an additional £8.8 million in gross proceeds before expenses and commission. NuCana expects that its cash and cash equivalents as of March 31, 2025, together with amounts raised through its financing, will be sufficient to fund its planned operations into Q4 2026. NuCana continues to advance its numerous clinical programs and reported a net loss of £2.5 million for the quarter ended March 31, 2025, as compared to a net loss of £6.8 million for the quarter ended March 31, 2024. Basic and diluted loss per ordinary share was £0.02 for the quarter ended March 31, 2025, as compared to £0.13 per ordinary share for the comparable quarter ended March 31, 2024. 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’s pipeline includes NUC-7738 and NUC-3373. 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. 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. Forward-Looking Statements This press release may contain “forward-looking” 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 “Company”). All statements other than statements of historical fact contained in this press release are forward-looking statements, including statements concerning the Company’s planned and ongoing clinical studies for the Company’s 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’s 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’s current cash and cash equivalents to fund its planned operations into Q4 2026. In some cases, you can identify forward-looking statements by terminology such as “may,” “will,” “should,” “expects,” “plans,” “anticipates,” “believes,” “estimates,” “predicts,” “potential” or “continue” 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’s 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 “Risk Factors” section of the Company’s Annual Report on Form 20-F for the year ended December 31, 2024 filed with the Securities and Exchange Commission (“SEC”) on March 20, 2025, and subsequent reports that the Company files with the SEC. Forward-looking statements represent the Company’s 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. Unaudited Condensed Consolidated Statements of Operations Unaudited Condensed Consolidated Statements of Financial Position As At Unaudited Condensed Consolidated Statements of Cash Flows For more information, please contact: NuCana plc Hugh S. Griffith Chief Executive Officer +44 131-357-1111 [email protected] ICR Healthcare Chris Brinzey +1 339-970-2843 [email protected]

Pfizer's PFE non-COVID operational revenues improved in 2024, driven by its key in-line products like Vyndaqel, Padcev and Eliquis, new launches and newly acquired products from Seagen. The trend is expected to have continued in the first quarter of 2025. Vyndaqel/Vyndamax sales are likely to have been strong, driven by continued demand growth due to increases in diagnosis and treatment rates. However, the unfavorable impact of the IRA and new competition in the United States can hurt Vyndaqel’s growth. Sales of key vaccine, Prevnar, are likely to have declined due to competitive pressure for the adult indication. The Zacks Consensus Estimate for sales of Vyndaqel/Vyndamax is $1.42 billion while our model estimates the same to be $1.37 billion. The Zacks Consensus Estimate for sales of Prevnar family of vaccines is $1.7 billion while our model estimates Prevnar family vaccine sales to be $1.73 billion. In addition, alliance revenues and direct sales from Eliquis are likely to have provided top-line support, driven by continued share gains in the oral anti-coagulant market and recent launches in international markets. However, sales could be hurt by lower pricing in the United States. The Zacks Consensus Estimate for alliance revenues from Eliquis is $2.0 billion, while our model estimate is $2.28 billion. So far this year, Pfizer’s stock has declined 12.7% compared with a decrease of 1.9% for the industry. Image Source: Zacks Investment Research We expect Pfizer’s several newly launched drugs, like the Velsipity pill for ulcerative colitis, the pentavalent meningococcal vaccine Penbraya, and new gene therapies for hemophilia, Hympavzi (marstacimab), and Beqvez/Durveqtix, to have contributed to top-line growth. As far as new RSV vaccine, Abrysvo, is concerned, its sales are likely to have benefited from international market expansion. Its sales in the United States are expected to have been hurt by revised recommendations for RSV vaccinations issued in June 2024 by the US Advisory Committee on Immunization Practices. The Zacks Consensus Estimate for Abrysvo is $158 million, while our model estimate is $183.9 million. The antibody-drug conjugates or ADCs — Adcetris, Padcev, Tukysa and Tivdak — added to Pfizer’s portfolio with the Seagen acquisition in December 2023, boosted Pfizer’s oncology sales in 2024. Pfizer is particularly witnessing strong demand for Padcev. Among other acquired products, Nurtec sales are likely to have risen, driven by strong demand in the United States and launches in international markets. As regards its COVID products, Pfizer records direct sales and alliance revenues from its partner, BioNTech BNTX for the COVID-19 vaccine, Comirnaty. Revenues from Pfizer’s COVID vaccine, Comirnaty, are likely to have declined, similar to the past several quarters, due to lower vaccinations globally and lower contracted doses. However, sales of its antiviral pill for COVID, Paxlovid improved in the fourth quarter of 2024. It remains to be seen if the improved trend continued in the first quarter of 2025. Sales of Comirnaty and Paxlovid have become somewhat stable due to their commercialization in both the United States and international markets The Zacks Consensus Estimate for direct sales and alliance revenues from Comirnaty is $279.0 million, while that for Paxlovid is $629.0 million. Our estimate for direct sales and alliance revenues from Comirnaty is $209.9 million, while that for Paxlovid is $523.4 million. Pfizer has a Zacks Rank #2 (Buy) currently. Pfizer Inc. price-consensus-chart | Pfizer Inc. Quote A couple of other stocks worth considering are ANI Pharmaceuticals ANIP and NuCana NCNA, both carrying a Zacks Rank #1 (Strong Buy). You can see the complete list of today’s Zacks #1 Rank stocks here. Estimates for ANI Pharmaceuticals’ 2025 earnings have risen from $5.54 per share to $6.36 per share over the past 60 days. So far this year, ANI Pharmaceuticals’ stock has risen 26.0%. ANI Pharmaceuticals beat estimates in each of the last four quarters, delivering a four-quarter average earnings surprise of 17.32%. Estimates for NuCana’s 2025 loss per share have improved from $11.26 per share to 5 cents per share over the past 60 days. So far this year, NuCana’s stock has declined 45.4%. NuCana beat estimates in three of the last four quarters while missing in one, delivering a four-quarter average earnings surprise of 52.48%. Want the latest recommendations from Zacks Investment Research? Today, you can download 7 Best Stocks for the Next 30 Days. Click to get this free report Pfizer Inc. (PFE) : Free Stock Analysis Report ANI Pharmaceuticals, Inc. (ANIP) : Free Stock Analysis Report NuCana PLC Sponsored ADR (NCNA) : Free Stock Analysis Report BioNTech SE Sponsored ADR (BNTX) : Free Stock Analysis Report This article originally published on Zacks Investment Research (zacks.com). Zacks Investment Research

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. “Throughout 2024, we shared multiple data updates from our two lead anti-cancer medicines, NUC-7738 and NUC-3373,” said Hugh S. Griffith, NuCana’s Founder and Chief Executive Officer. “Our 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’s 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.” Mr. Griffith added, “Encouraged by these findings, we are excited to further evaluate NUC-7738’s 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.” Mr. Griffith continued, “Turning 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.” Mr. Griffith concluded, “In 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’s 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.” 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 £6.7 million compared to £11.4 million as of September 30, 2024 and £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 £2.2 million in net proceeds raised through its at-the-market (ATM) offering. Subsequent to December 31, 2024, NuCana has raised an additional £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 £0.7 million for the quarter ended December 31, 2024, as compared to a net loss of £7.7 million for the quarter ended December 31, 2023. Net loss for the year ended December 31, 2024 was £19.0 million, compared to a net loss of £27.6 million for the year ended December 31, 2023. Basic and diluted loss per ordinary share was £0.01 for the quarter and £0.26 for the year ended December 31, 2024, as compared to £0.14 per ordinary share for the comparable quarter and £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’s 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 “forward-looking” 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 “Company”). All statements other than statements of historical fact contained in this press release are forward-looking statements, including statements concerning the Company’s planned and ongoing clinical studies for the Company’s 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’s 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’s 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 “may,” “will,” “should,” “expects,” “plans,” “anticipates,” “believes,” “estimates,” “predicts,” “potential” or “continue” 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’s 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 “Risk Factors” section of the Company’s Annual Report on Form 20-F for the year ended December 31, 2024 filed with the Securities and Exchange Commission (“SEC”) on March 20, 2025, and subsequent reports that the Company files with the SEC. Forward-looking statements represent the Company’s 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 [email protected] ICR Healthcare Chris Brinzey +1 339-970-2843 [email protected]