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Administration of ceralasertib

Phase 1

Adv Solid Malig - H&N SCC, ATM Pro / Def NSCLC, Gastric, Breast and Ovarian Cancer | Small molecule | Oncology |AstraZeneca PLC|Last Updated: Jul 24, 2026

Success Probability

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Market & Valuation

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Trial Design

CONTROLLED
Total Trials1
Total Enrollment358

FDA Designations

No designations recorded

Clinical trial landscape

Administration of ceralasertib · 1 trial · 1 indication

Phase 1 1
NCT02264678Ascending Doses of Ceralasertib in Combination With Chemotherapy and/or Novel Anti Cancer AgentsAdv Solid Malig - H&N SCC, ATM Pro / Def NSCLC, Gastric, Breast and Ovarian Cancer
ACTIVE NOT_RECRUITING358 Analytics
PHASE1ACTIVE NOT_RECRUITING
Ascending Doses of Ceralasertib in Combination With Chemotherapy and/or Novel Anti Cancer Agents
Adv Solid Malig - H&N SCC, ATM Pro / Def NSCLC, Gastric, Breast and Ovarian CancerUnlock trial analytics

Study Endpoints

Primary Endpoints

The number of subjects with adverse events/serious adverse events
From baseline until 28 days after discontinuation of study treatment for Module 1, 2 and 5 or until 90 days after discontinuation of study treatment for Module 3 and 4

Number of patients with adverse events and with serious adverse events including abnormal clinical observations, DLT, abnormal Electrocardiogram (ECG) parameters, abnormal laboratory assessments and abnormal vital signs that changed from baseline.

Module 4 only: Effect of food on ceralasertib absorption by Intensive PK assessments after a single oral dose of ceralasertib (Part A)
From 0h to 24h on Day 2 and Day15 in Cycle 0 (Part A) - Cycle 0 is 15 days

Intensive PK sampling at defined timepoints to measure Geometric mean and 90% CI for the ratio of fed: fasted in area under the plasma concentration time curve from zero to the last measurable time point (AUC0-t), area under the plasma concentration time curve from zero to infinity (AUC)

Module 4 only: Effect of ceralasertib on ECG parameters (HR, PR, QRS and QTcF) by ECG recordings
From 0h to 24h on Day 2, Day 8 and Day15 in Cycle 0 (Part A) - Cycle 0 is 15 days

Change from baseline HR, PR, QRS and QTcF (ΔHR, ΔPR, ΔQRS and ΔQTcF) Categorical outliers for QTcF, HR, PR, and QRS Frequency of treatment emergent T and U wave abnormalities If a substantial HR effect is observed (i.e., the absolute value of the largest least squares \[LS\] mean ΔHR is greater than 10bpm in the by-time point analysis), other correction methods such as individualised and optimised individualised HR corrected QT interval (QTcI) will be explored and compared. The method that removes the HR dependence of the QT interval most efficiently will be chosen as the primary correction method.

Secondary Endpoints

Maximum Observed Plasma Concentration (Cmax) of ceralasertib
At predefined intervals throughout the ceralasertib treatment period (approximately 8 weeks for Module 1 and 16 weeks + IP disc. for Module 2+3)
Time to observed Cmax (Tmax) for ceralasertib
At predefined intervals throughout the ceralasertib treatment period (approximately 8 weeks for Module 1 and 16 weeks + IP disc. for Module 2+3)
Area under the plasma concentration-time curve (AUC) for ceralasertib
At predefined intervals throughout the ceralasertib treatment period (approximately 8 weeks for Module 1 and 16 weeks + IP disc. for Module 2+3)
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Study Design & Arms

AllocationNON_RANDOMIZED
MaskingNONE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Module 2 Part A1EXPERIMENTALModule 2 Part A1: ascending doses of ceralasertib will be administered alone to define the maximum tolerated dose (MTD) and/or a continuous, tolerable Recommended Dose (RD) to take into Module 2 Part A2.
Module 2 Part A2EXPERIMENTALModule 2 Part A2: ascending doses of ceralasertib will be administered in combination with olaparib to patients to define the dose, frequency and schedule of ceralasertib and olaparib to take into Module 2 Part B.
Module 2 Part B1EXPERIMENTALModule 2 Part B1: Patients with second line 'ATM deficient' gastric adenocarcinoma including GEJ adenocarcinoma will receive ceralasertib with olaparib, at dose, frequency and schedule recommended from Module 2 Part A2.
Module 2 Part B2EXPERIMENTALModule 2 part B2: Patients with second line 'ATM proficient' gastric adenocarcinoma including GEJ adenocarcinoma will receive ceralasertib with olaparib, at dose, frequency and schedule recommended from Module 2 Part A2.
Module 2 Part B3EXPERIMENTALModule 2 Part B3: Patient with second or third line breast cancer with BRCA mutations (somatic or germline), excluding HER2 positive breast cancer will receive ceralasertib with olaparib, at dose, frequency and schedule recommended from Module 2 Part A2.
Module 2 Part B4EXPERIMENTALModule Part B4: Patients with second or third line triple negative breast cancer with no known BRCA mutations. This expansion will be enriched for patients with disease harbouring a HRR-related gene mutation (HRRm) will receive ceralasertib with olaparib, at dose, frequency and schedule recommended from Module 2 Part A2.
Module 3 Part AEXPERIMENTALModule 3 Part A: cohort escalation of ceralasertib in combination with durvalumab in HNSCC or NSCLC patients to define the dose, frequency and schedule of ceralasertib and durvalumab to take into Module 3 Part B. Additionally, Module 3 Part A will include a serial tumour biopsy cohort to evaluate the Proof of Mechanism of ceralasertib in HNSCC and NSCLC patients.
Module 3 Part BEXPERIMENTALModule 3 Part B: cohort expansions of ceralasertib in combination with durvalumab in HNSCC or NSCLC patients at dose, frequency and schedule from Module 3 Part A.
Module 2 Part B5EXPERIMENTALPatients with BRCA mutant or RAD51C/D mutant (either germline or somatic) or HRD-positive status epithelial ovarian, fallopian tube, or primary peritoneal cancer according to local testing. Patients must be platinum sensitive and previously progressed on a licensed PARPi. The cohort will be split into 2 groups: Cohort 1 - without intervening chemotherapy following progression on a PARPi, Cohort 2 - with intervening chemotherapy following progression on a PARPi. Patients will receive ceralasertib and olaparib, at the RP2D dose, frequency and schedule established from Module 2 Part A2.
Module 4 (FE/QT)EXPERIMENTALCeralasertib monotherapy will be administered on a number of days during Cycle 0 to assess the effect of food on ceralasertib absorption and effect of ceralasertib on ECG parameters under various conditions (fasted, fed, steady state). From C1 onwards, patients who participated in C0 will be allocated to either ceralasertib in combination with olaparib or durvalumab, or ceralasertib monotherapy and assessed for safety.
Module 5 Part AEXPERIMENTALModule 5 Part A: ascending doses of ceralasertib will be administered in combination with AZD5305 to patients to define the MTD, RP2D. In case this first dose level is not tolerated, alternative schedules will be evaluated.
Module 5 Part BEXPERIMENTALModule 5 Part B: cohort expansions of ceralasertib in combination with AZD5305 in ovarian patients at dose, frequency and schedule from Module 5 Part A.
Module 1 Part AEXPERIMENTALModule 1 Part A: ascending doses of ceralasertib in combination with carboplatin AUC5 will be administered to patients to define the maximum tolerated dose (MTD) and/or a continuous, tolerable Recommended Dose (RD).
Module 1 Part BEXPERIMENTALModule 1 Part B: patients with advanced lung adenocarcinoma with low expression of ATM will receive ceralasertib and carboplatin, at the dose, frequency and schedule recommended from Module 1 Part A.

Interventions

NameTypeDescription
Administration of ceralasertibDRUGAn oral formulation of ceralasertib will be used. In Module 2 Part A1, patients will receive a single dose of ceralasertib on Day 1, followed by 4 to 6 days washout, before multiple dosing.
Administration of ceralasertib in combination with olaparibDRUGAn oral formulations of ceralasertib and olaparib will be used. In Module 2 Part A2, patients will receive either a single or twice daily dose of ceralasertib followed by 4 to 6 days washout, before multiple dosing with ceralasertib and olaparib. In Module 2 Part B, patients will receive ceralasertib and olaparib at the dose, frequency and schedule recommended from Module 2 Part A2. Cycle 0 may be omitted at the discretion of the sponsor.
Administation of ceralasertib in combination with durvalumabDRUGAn oral formulation of ceralasertib will be used. Durvalumab is given via IV infusion. In Module 3 Part A, patients will receive an initial single dose of ceralasertib on Day 1, followed by multiple dosing in combination with durvalumab. In Module 3 Serial Tumour Biopsy Extension and Part B expansion cohorts, patients will receive ceralasertib at the dose, frequency and schedule recommended from Module 3 Part A, in combination with durvalumab.
Administration of ceralasertib monotherapyDRUGModule 4 Part A and Module 4 Part B Cohort 3: During C0, patients will receive ceralasertib monotherapy orally once a day on 3 non-consecutive days and ceralasertib twice a day on 5 consecutive days. After the patients have completed C0 (Part A) they may transition to Module 4 Part B cohort 3 where they will continue to receive ceralasertib monotherapy
Administration of ceralasertib and olaparibDRUGModule 4 Part B Cohort 1: After completion of Part A (C0), the patient may transition to Part B and be allocated to receive ceralasertib in combination with olaparib as decided by the investigator.
Administration of ceralasertib and durvalumabDRUGModule 4 Part B Cohort 2: After completion of Part A (C0), the patient may transition to Part B and be allocated to receive ceralasertib in combination with durvalumab as decided by the investigator.
Administration of ceralasertib in combination with AZD5305DRUGAn oral formulations of ceralasertib and AZD5305 will be used. In Module 5 Part A, patients will receive a single dose of ceralasertib on cycle 0 Day 1 as per dose level cohort. In Module 5 Part B, patients will receive ceralasertib and AZD5305: C1 onwards (as per dose level cohort allocated).
Administration of ceralasertib in combination with carboplatinDRUGAn oral formulation of ceralasertib will be used. In Module 1 Part A, patients will receive a single dose of ceralasertib on Day 1, followed by multiple dosing in combination with carboplatin. A maximum of 6 cycles (21 days per cycle) of treatment will be given. In Module 1 Part B, patients will receive ceralasertib and carboplatin at the dose, frequency and schedule recommended from Module 1 Part A.
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Eligibility Criteria

Age Range18 Years to 130 Years
SexALL
Healthy VolunteersNo
Study Sites28

Principal Inclusion criteria: * Aged at least 18 * The presence of a solid malignant tumour that is not considered appropriate for further standard treatment * Module 2 Part B study expansions, and Module 3: patients must have a tumour at least 1 cm in size that can be measured using a CT or MRI sc...

Countries:United StatesFranceSouth KoreaUnited Kingdom
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Recent Changes (Last 90 Days)

MEDIUMJul 24, 2026NCT02264678Enrollment: 354 → 358
MEDIUMJul 24, 2026NCT02264678Enrollment: 354 → 358

Frequently asked questions about Administration of ceralasertib

What is ceralasertib and who is developing it?

Ceralasertib is an investigational small molecule being developed by AstraZeneca PLC. It is currently in Phase 1 clinical development for the treatment of advanced solid malignancies, including head and neck squamous cell carcinoma, ATM proficient or deficient non-small cell lung cancer, gastric, breast, and ovarian cancer.

What is the current clinical stage of ceralasertib?

Ceralasertib is in Phase 1 clinical development. There is one active trial that is not recruiting participants. The trial is a controlled, open-label study, but it is not randomized or double-blinded.

What is the design of the ceralasertib clinical trial?

The trial, NCT02264678, is a Phase 1 study titled 'Ascending Doses of Ceralasertib in Combination With Chemotherapy and/or Novel Anti Cancer Agents.' It is a controlled, open-label study with a planned enrollment of 358 participants. It is not randomized or double-blinded.

What conditions is ceralasertib being studied for?

Ceralasertib is being studied for advanced solid malignancies, specifically head and neck squamous cell carcinoma, ATM proficient or deficient non-small cell lung cancer, gastric cancer, breast cancer, and ovarian cancer.

What are the eligibility criteria for the ceralasertib trial?

The trial enrolls adults aged 18 years and older of all sexes. Healthy volunteers are not eligible. The study is being conducted in the United States, France, South Korea, and the United Kingdom.

Is ceralasertib being tested as a monotherapy or in combination?

The clinical trial is evaluating ceralasertib in combination with chemotherapy and/or novel anti-cancer agents. The study involves ascending doses of ceralasertib given alongside these other treatments.