Clinical trial · Interventional
Human ADME Study of [14C]-Ceralasertib (AZD6738) and Absolute Bioavailability of Ceralasertib
A Phase I, Open-label Study to Assess the Absolute Bioavailability of Ceralasertib (AZD6738) and Absorption, Distribution, Metabolism, and Excretion (ADME) of [14C]-Ceralasertib in Patients With Advanced Solid Tumours
- Source
- ClinicalTrials.gov
- Retrieved
- Sep 8, 2026
- Layer
- normalized (units and labels harmonized; values unchanged)
- Run
- ING-CLINICALTRIALS-20260908-000001
Why stopped (as posted): A decision, based solely on business strategy, was taken to terminate study D533BC00002 on 22 December 2025, as the clinical development programme for ceralasertib has been discontinued.
Summary
Brief summary (as posted)
This is an open-label, two-part study in participants with solid tumours and will be conducted at multiple study sites. Participants will be assessed for study eligibility prior to admission to the study site. Participants may be enrolled in either Part A or Part B of the study or in both. Part A will assess the absolute bioavailability, determine the excretory routes of \[14C\]-Ceralasertib, and evaluate the PK parameters of a Ceralasertib oral dose and a radiolabelled IV microdose of \[14C\]-Ceralasertib. Participants will be admitted to the study site pre-dose Part A and will remain at the study site for excreta (urine and faeces) collections, PK sampling and safety assessments. A washout period days will be observed between dosing in Part A and Part B if participants are taking part in both parts of the study. Part B will assess the ADME of \[14C\]-Ceralasertib. Participants will be readmitted to the study site for Part B and will remain at the study site for excreta (urine, faeces, and any vomitus) collections, PK sampling, and safety assessments. Participants will return to the study site for a Follow-up Visit after the last dose of Ceralasertib which will include routine safety assessments. After the completion of Parts A and/or B, and following the Follow-up Visit, participants may be allowed further access to Ceralasertib if in the opinion of the investigator they may derive clinical benefit.
Conditions
Conditions (1)
Free-text conditions as registered, with the CancerIndex entity they were reconciled to and the match type.
| Condition (as posted) | Mapped entity | Match | Confidence |
|---|---|---|---|
| Neoplasm | Neoplasm | ONTOLOGY_EXACT | 0.90 |
Interventions
Interventions (2)
| Intervention | Type | Mapped drug | Match |
|---|---|---|---|
| [14C] AZD6738 | Drug | — | UNRESOLVED |
| AZD6738 / ceralasertib | Drug | — | UNRESOLVED |
Design
Arms and outcomes
Arms (1)
- type
- EXPERIMENTAL
- label
- Primary Treatment Arm - AZD6738
- description
- Part A - oral dose of Ceralasertib and a radiolabelled IV microdose of \[14C\]-Ceralasertib Part B - oral dose of \[14C\]-Ceralasertib
- interventionNames
- Drug: [14C] AZD6738
- Drug: AZD6738 / ceralasertib
Primary outcomes (21)
- measure
- To evaluate absolute bioavailability Ceralasertib and PK of Ceralasertib and [14C]-Ceralasertib after administration of oral dose of Ceralasertib and IV [14C]-Ceralasertib (Part A)
- timeFrame
- Through end of Part A, approximately 5 weeks including screening period
- description
- Absolute bioavailability (F) of Ceralasertib and PK parameters and recovery in urine and faeces
- measure
- To determine the rates and major excretory routes of Ceralasertib and its metabolites after IV dose of [14C]-Ceralasertib (Part A) and a oral dose of [14C]-Ceralasertib (Part B)
Eligibility
Eligibility (as posted)
- Sex
- All
- Minimum age
- 18 Years
Show eligibility criteria text
Inclusion Criteria: * Participants are eligible to be included in the study only if all of the following criteria apply: Age 1. Male or female ≥ 18 years of age (or the legal age of consent in the jurisdiction in which the study is taking place), at the time of signing the ICF. Type of Participant and Disease Characteristics 2. Sufficient ECOG performance status, life expectancy, and ability to swallow and retain oral medication 3. Adequate organ and marrow function 4. Willingness and ability to comply with study and follow-up procedures. 5. Able and willing to stay in hospital for specified residential periods following administration of Ceralasertib/\[14C\]-Ceralasertib 6. Regular bowel movements 7. Locally advanced or metastatic solid tumour, for which standard therapy does not exist or has proven to be ineffective or intolerable. 8. Sex and Contraceptive/Barrier Requirements: Contraceptive use by men or women should be consistent with local regulations regarding the methods of contraception for those participating in clinical studies 9. Informed Consent: patient must be capable of giving signed informed consent as described in Appendix A which includes compliance with the requirements and restrictions listed in the ICF and in this protocol. Exclusion Criteria: * Participants are excluded from the study if any of the following criteria apply: 1. History of Diagnosis of protocol-specified medical conditions 2. Spinal cord compression or brain metastasis prior to start of study intervention unless asymptomatic and stable 3. Persistent toxicities (CTCAE Grade ≥ 2), with the exception of alopecia and vitiligo, caused by previous anticancer therapy. 4. Any medical or surgical condition that would preclude adequate absorption of Ceralasertib 5. Inadequate cardiac function / status or other cardiovascular diseases 6. Participants with active infection requiring systemic antibiotics, antifungal or antiviral drugs 7. Any evidence of severe or uncontrolled systemic disease, as judged by the investigator that would make it undesirable for the participant to participate in the study or would jeopardise compliance with the protocol 8. Protocol-specified prior/concomitant therapy exclusions 9. Protocol-specified prior/concurrent clinical study experience 10. Other Exclusions including but not limited to tobacco/nicotine and/or alcohol use, or drug/alcohol abuse history 11. Not currently pregnant, breast-feeding, or planning to become pregnant
References
Publications (0)
Data not yet available