Study for AZD4360 in Participants With Advanced Solid Tumours

Phase 1

Recruiting

• Conditions: Gastric Cancer; Gastroesophageal Junction Cancer; Biliary Tract Cancer; Pancreatic Ductal Adenocarcinoma
• Interventions: Drug: AZD4360

• Registration Number: NCT06921928
• Lead Sponsor: AstraZeneca

Brief Summary

The purpose of this study is to evaluate the safety, tolerability, PK, immunogenicity, pharmacodynamics, and preliminary efficacy of AZD4360 in adult participants with locally advanced or metastatic solid tumours selected for expression of CLDN18.2.

Detailed Description

Not available

Study Timeline

• Study First Submitted: 2025-03-25
• Study First Submitted QC: 2025-04-03
• Study First Posted: 2025-04-10
• Study Start: 2025-04-29
• Status Verified: 2025-05
• Last Update Submitted: 2025-05-20
• Last Update Posted: 2025-05-21
• Primary Completion: 2027-07-31
• Study Completion: 2027-11-17

Recruitment & Eligibility

• Status: RECRUITING
• Sex: All
• Target Recruitment: 117

Inclusion Criteria

1. Participant must be ≥ 18 at the time of signing the ICF.
2. Eastern cooperative oncology group performance status of 0-1 with no deterioration over the previous 2 weeks prior to baseline or day of first dosing.
3. Minimum life expectancy of 12 weeks in the opinion of the Investigator.

4 Adequate organ and marrow function, as defined by protocol.

5. Contraceptive use by men or women should be consistent with local regulations, as defined by protocol.

6. Histologically confirmed advanced or metastatic Pancreatic ductal adenocarcinoma (PDAC), Gastric or Gastroesophageal junction cancer (G/GEJC), and Biliary tract cancer (BTC) with documented positive CLDN18.2 expression.

7. Participants must have received at least one prior line of systemic therapy in the advanced/metastatic disease.

8. At least one measurable lesion according to RECIST v1.1.

Exclusion Criteria

1. Human Epidermal Growth Factor Receptor 2 (HER2) positive (3+ by IHC or 2+ by IHC and positive by in situ hybridisation) or indeterminate G/GEJC participants.
2. Unstable or active peptic ulcer disease or digestive tract bleeding including but not limited to clinically significant bleeding in the setting of prior CLDN18.2 directed therapy.
3. Participants with clinically significant ascites that require drainage.
4. Central nervous system (CNS) metastases or CNS pathology, as defined by protocol.
5. With spinal cord compression or with high risk of paralysis.
6. History of non-infectious interstitial lung disease/pneumonitis.
7. Participant has cardiac abnormalities, as defined by protocol.
8. History of another primary malignancy within 2 years prior to screening.
9. Known serologic status reflecting active hepatitis B or hepatitis C.
10. Known HIV infection that is not well controlled.
11. Active tuberculosis infection.

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: SEQUENTIAL

Arm && Interventions

Group	Intervention	Description
AZD4360 Monotherapy	AZD4360	AZD4360 Monotherapy

Primary Outcome Measures

Name	Time	Method
Incidence of participants with Dose-Limiting Toxicity (in dose escalation cohort), Adverse events (AEs) , Serious Adverse Events (SAEs) and AEs leading to discontinuation of AZD4360	Through study completion, up to approximately 2 years	To investigate the safety and tolerability, and to determine the Maximum Tolerated Dose (MTD) and/or a Recommended Phase II Dose (R2PD) of AZD4360 in previously treated participants with advanced solid tumours, through the assessment of Dose Limiting Toxicities, Adverse Events and Severe Adverse Events.

Secondary Outcome Measures

Name	Time	Method
Objective Response Rate (ORR)	Through study completion, up to approximately 2 years	The percentage of participants with a confirmed Complete Response (CR) or Partial Response (PR).; Radiological response evaluated according to Response Evaluation Criteria in Solid Tumours (RECIST) v1.1.
Duration of Response (DoR)	Through study completion, up to approximately 2 years	The time from the date of first documented ORR until date of first documented Progression of Disease (PD) or death.; Radiological response evaluated according to RECIST v1.1.
Progression Free Survival (PFS)	Through study completion, up to approximately 2 years	The time from the start of treatment until the date of objective PD or death.; Radiological response evaluated according to RECIST v1.1.
Overall Survival (OS)	Through study completion, up to approximately 2 years	The time from the start of treatment until death due to any cause.
Plasma pharmacokinetics (PK) parameters of AZD4360: Plasma concentration	Through study completion, up to approximately 2 years	Plasma concentration of AZD4360, total antibody and other analytes.
Plamsa PK parameters of AZD4360, total antibody and other analytes: Area Under Curve (AUC)	Through study completion, up to approximately 2 years	Area under the plasma concentration versus time curve for AZD4360, total antibody and other analytes.
Plasma PK parameters of AZD4360, total antibody and other analytes: Maximum plasma concentration (Cmax)	Through study completion, up to approximately 2 years	Maximum observed plasma concentration of AZD4360, total antibody and other analytes.
Plasma PK parameters of AZD4360, total antibody and other analytes: Clearance	Through study completion, up to approximately 2 years	A pharmacokinetic measurement of the volume of plasma from which AZD4360, total antibody and other analytes are completely removed per unit time.
Disease Control Rate (DCR)	Through study completion, up to approximately 2 years	The percentage of participants who have a best objective response of confirmed CR or PR or who have Stable Disease for at least 11 weeks after start of treatment to allow for an early assessment within the assessment window.; Radiological response evaluated according to RECIST v1.1.
Plasma PK parameters of AZD4360, total antibody and other analytes: Half-life	Through study completion, up to approximately 2 years	The time required for the quantity of AZD4360, total antibody and other analytes to reduce to half of their initial values.
Plasma PK parameters of AZD4360, total antibody and other analytes: Time to maximum plasma concentration (tmax)	Through study completion, up to approximately 2 years	The time it takes for AZD4360, total antibody and other analytes to reach the maximum plasma concentration after administration of the study drug.

Trial Locations

Locations (1)

Research Site; 🇯🇵 Koto-ku, Japan