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[6-K] NuCana plc Current Report (Foreign Issuer)

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6-K

NuCana plc reported an update via Form 6-K, stating that on October 14, 2025 it announced the publication of new data from the NuTide:303 clinical study evaluating NUC-3373 on medRxiv, alongside complementary preclinical findings published in the peer‑reviewed journal PLOS ONE.

The company furnished a press release as Exhibit 99.1. The information is being furnished, not filed, under the Exchange Act and is not subject to Section 18 liabilities, nor incorporated into other filings except by specific reference.

NuCana plc ha fornito un aggiornamento tramite Form 6-K, dichiarando che il 14 ottobre 2025 ha annunciato la pubblicazione di nuovi dati dallo studio clinico NuTide:303 che valuta NUC-3373 su medRxiv, insieme a reperti preclinici complementari pubblicati nel giornale peer‑reviewed PLOS ONE.

L'azienda ha fornito una comunicazione stampa come Exhibit 99.1. Le informazioni sono fornite, non depositate, ai sensi del Securities Exchange Act e non soggette alle responsabilità di Sezione 18, né incorporate in altri documenti se non per riferimento specifico.

NuCana plc informó una actualización vía Form 6-K, afirmando que el 14 de octubre de 2025 anunció la publicación de nuevos datos del estudio clínico NuTide:303 que evalúa NUC-3373 en medRxiv, junto con hallazgos preclínicos complementarios publicados en la revista revisada por pares PLOS ONE.

La empresa presentó un comunicado de prensa como Exhibit 99.1. La información se está presentando, no presentada, conforme a la Exchange Act y no está sujeta a responsabilidades de la Sección 18, ni incorporada a otros presentaciones excepto por referencia específica.

NuCana plc는 Form 6-K를 통해 업데이트를 보고했고, 2025년 10월 14일에 NuTide:303 임상 연구에서 NUC-3373를 평가하는 새로운 데이터가 medRxiv에 발표되었고 동반되는 전임상 발견들이 동료 심사 저널 PLOS ONE에 게재되었다고 밝혔다.

회사는 Exhibit 99.1로 보도자료를 제공했다. 이 정보는 Exchange Act에 따라 제출되는 것이지 등록되는 것이 아니며, 18조의 책임도 없고 특정 참조를 제외하고는 다른 제출 문서에 포함되지 않는다.

NuCana plc a communiqué une mise à jour via Form 6-K, indiquant que le 14 octobre 2025 elle a annoncé la publication de nouvelles données de l'étude clinique NuTide:303 évaluant NUC-3373 sur medRxiv, aux côtés de résultats précliniques complémentaires publiés dans le journal évalué par les pairs PLOS ONE.

L'entreprise a fourni un communiqué de presse en tant que Exhibit 99.1. L'information est fournie, et non déposée, en vertu de la Securities Exchange Act et n'est pas soumise aux responsabilités de la Section 18, ni incorporée dans d'autres dépôts sauf référence spécifique.

NuCana plc gab ein Update per Form 6-K bekannt und erklärte, dass am 14. Oktober 2025 die Veröffentlichung neuer Daten aus der klinischen Studie NuTide:303, die NUC-3373 bewertet, auf medRxiv veröffentlicht wurde, zusammen mit ergänzenden präklinischen Erkenntnissen, veröffentlicht im peer‑reviewed Journal PLOS ONE.

Das Unternehmen legte eine Pressemitteilung als Exhibit 99.1 vor. Die Information wird gemäß dem Exchange Act bereitgestellt, nicht eingereicht, und unterliegt nicht den Haftungen gemäß Section 18 und wird auch nicht in andere Einreichungen aufgenommen, außer durch ausdrückliche Bezugnahme.

NuCana plc أصدرت تحديثاً عبر النموذج 6-K، وتفيد بأن في 14 أكتوبر 2025 أعلنت نشر بيانات جديدة من الدراسة السريرية NuTide:303 التي تقيم NUC-3373 على medRxiv، إلى جانب نتائج قبل السريرية تكميلية منشورة في المجلة المحكمة بالنظراء PLOS ONE.

قدمت الشركة بياناً صحفياً كـ Exhibit 99.1. المعلومات تُقدَّم وليست مُودَعة بموجب قانون الأوراق المالية Exchange Act وليست خاضعة لمسؤوليات القسم 18، ولا مدموجة في ملفات أخرى إلا بالإشارة المحددة.

NuCana plc 通过 Form 6-K 发布更新,指出在 2025 年 10 月 14 日宣布在 medRxiv 上公布评估 NUC-3373 的临床研究 NuTide:303 的新数据,同时公布在同行评审期刊 PLOS ONE 上的补充性前临床发现。

公司提交了一份名为 Exhibit 99.1 的新闻稿。该信息按交易法案进行提供,而非提交,不受第 18 条的责任约束,也不通过特定引用被并入其他文件。

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NuCana plc ha fornito un aggiornamento tramite Form 6-K, dichiarando che il 14 ottobre 2025 ha annunciato la pubblicazione di nuovi dati dallo studio clinico NuTide:303 che valuta NUC-3373 su medRxiv, insieme a reperti preclinici complementari pubblicati nel giornale peer‑reviewed PLOS ONE.

L'azienda ha fornito una comunicazione stampa come Exhibit 99.1. Le informazioni sono fornite, non depositate, ai sensi del Securities Exchange Act e non soggette alle responsabilità di Sezione 18, né incorporate in altri documenti se non per riferimento specifico.

NuCana plc informó una actualización vía Form 6-K, afirmando que el 14 de octubre de 2025 anunció la publicación de nuevos datos del estudio clínico NuTide:303 que evalúa NUC-3373 en medRxiv, junto con hallazgos preclínicos complementarios publicados en la revista revisada por pares PLOS ONE.

La empresa presentó un comunicado de prensa como Exhibit 99.1. La información se está presentando, no presentada, conforme a la Exchange Act y no está sujeta a responsabilidades de la Sección 18, ni incorporada a otros presentaciones excepto por referencia específica.

NuCana plc는 Form 6-K를 통해 업데이트를 보고했고, 2025년 10월 14일에 NuTide:303 임상 연구에서 NUC-3373를 평가하는 새로운 데이터가 medRxiv에 발표되었고 동반되는 전임상 발견들이 동료 심사 저널 PLOS ONE에 게재되었다고 밝혔다.

회사는 Exhibit 99.1로 보도자료를 제공했다. 이 정보는 Exchange Act에 따라 제출되는 것이지 등록되는 것이 아니며, 18조의 책임도 없고 특정 참조를 제외하고는 다른 제출 문서에 포함되지 않는다.

NuCana plc a communiqué une mise à jour via Form 6-K, indiquant que le 14 octobre 2025 elle a annoncé la publication de nouvelles données de l'étude clinique NuTide:303 évaluant NUC-3373 sur medRxiv, aux côtés de résultats précliniques complémentaires publiés dans le journal évalué par les pairs PLOS ONE.

L'entreprise a fourni un communiqué de presse en tant que Exhibit 99.1. L'information est fournie, et non déposée, en vertu de la Securities Exchange Act et n'est pas soumise aux responsabilités de la Section 18, ni incorporée dans d'autres dépôts sauf référence spécifique.

NuCana plc gab ein Update per Form 6-K bekannt und erklärte, dass am 14. Oktober 2025 die Veröffentlichung neuer Daten aus der klinischen Studie NuTide:303, die NUC-3373 bewertet, auf medRxiv veröffentlicht wurde, zusammen mit ergänzenden präklinischen Erkenntnissen, veröffentlicht im peer‑reviewed Journal PLOS ONE.

Das Unternehmen legte eine Pressemitteilung als Exhibit 99.1 vor. Die Information wird gemäß dem Exchange Act bereitgestellt, nicht eingereicht, und unterliegt nicht den Haftungen gemäß Section 18 und wird auch nicht in andere Einreichungen aufgenommen, außer durch ausdrückliche Bezugnahme.

 
 

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

 

 

FORM 6-K

 

 

REPORT OF FOREIGN PRIVATE ISSUER

PURSUANT TO RULE 13a-16 OR 15d-16

OF THE SECURITIES EXCHANGE ACT OF 1934

For the month of October 2025

(Commission File No. 001-38215)

 

 

NUCANA PLC

(Translation of registrant’s name into English)

 

 

3 Lochside Way

Edinburgh EH12 9DT

United Kingdom

(Address of registrant’s principal executive office)

 

 

Indicate by check mark whether the registrant files or will file annual reports under cover Form 20-F or Form 40-F.

Form 20-F ☒   Form 40-F ☐

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101 (b) (1): ☐

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101 (b) (7): ☐

 

 
 


Other Events

On October 14, 2025, NuCana plc (the “Company”) issued a press release announcing the publication of new data from the NuTide:303 clinical study of NUC-3373 in medRxiv, the preprint server for health sciences, together with complementary preclinical findings published in the peer-reviewed journal Public Library of Science ONE (PLOS ONE). The press release is attached as Exhibit 99.1 hereto and is incorporated by reference herein.

The information in the attached Exhibit 99.1 is being furnished and shall not be deemed “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that Section, nor shall it be deemed incorporated by reference in any filing made by the Company under the Securities Act of 1933, as amended, or the Exchange Act, except as otherwise set forth herein or as shall be expressly set forth by specific reference in such a filing.

 

Exhibits     
99.1    Press Release, dated October 14, 2025


SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

 

NuCana plc
By:  

/s/ Ian Webster

Name:   Ian Webster
Title:   Interim Chief Financial Officer
  (Principal Financial and Accounting Officer)

Date: October 14, 2025

FAQ

What did NuCana (NCNA) announce in this 6-K?

NuCana announced publication of new data from the NuTide:303 clinical study of NUC-3373 on medRxiv, plus complementary preclinical findings in PLOS ONE.

Where were the NUC-3373 findings published?

Clinical study data were posted on medRxiv, and complementary preclinical findings were published in the peer-reviewed journal PLOS ONE.

Which study and drug are referenced by NuCana (NCNA)?

The NuTide:303 clinical study and the investigational drug NUC-3373.

What is included as Exhibit 99.1?

A press release dated October 14, 2025.

Is the information considered filed or furnished?

It is being furnished, not filed, and is not subject to Section 18 liabilities or incorporated by reference unless expressly stated.

When did NuCana issue the press release?

October 14, 2025.
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