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Early-phase Study of Claudin18.2 Peptide Diagnostic Radiopharmaceuticals

First-in-human Phase 0 Study of a 64Cu-Labeled Claudin18.2-Targeting Cyclic Peptide Drug in Patients with Gastric Cancer - CLAUDIRA-IIS

Status
Recruiting
Phases
Early Phase 1
Study type
Interventional
Source
JPRN
Registry ID
JPRN-jRCTs031250563
Enrollment
6
Registered
2025-12-10
Start date
2026-02-01
Completion date
Unknown
Last updated
2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Gastric Cancer Gastic Cancer

Interventions

A single intravenous dose of 148 MBq (+-20%) of the investigational drug will be administered.
D011886, D007297
A single intravenous injection of radiopharmaceuticals

Sponsors

Inaki Anri
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1) Histologically confirmed gastric cancer or gastroesophageal junction cancer. 2) Presence of either of the following lesions confirmed by imaging (CT or MRI): 2)-1 Distant metastatic lesion (including recurrent distant metastasis) 2)-2 Locally residual or recurrent lesion 3) Laboratory values within 28 days prior to enrollment must meet all of the following: 3)-1 Bone marrow function a. Absolute neutrophil count >= 1,000/uL b. Platelet count >= 75,000/uL c. Hemoglobin >= 7.0 g/dL 3)-2 Renal function Estimated GFR >= 30 mL/min/1.73 m2 3)-3 Liver function a. ALT = 90% on room air 4) ECOG Performance Status of 0 or 1 within 28 days prior to enrollment. 5) Age >= 18 years at the time of consent. 6) Written informed consent obtained from the subject prior to participation.

Exclusion criteria

Exclusion criteria: 1) Presence of active double (synchronous) malignancy. 2) Presence of any of the following uncontrolled infections: a. Hepatitis B virus infection b. Hepatitis C virus infection c. HIV infection d. Other systemic infections requiring treatment 3) Presence of any of the following uncontrolled conditions or diseases: Symptomatic congestive heart failure, Unstable angina, Myocardial infarction, Arrhythmia, Severe Valvular heart disease, Severe Respiratory disease 4) Presence of psychiatric disorders or psychiatric symptoms judged to make study participation difficult. 5) Pregnant women, women who may be pregnant, or breastfeeding women. 6) Inability to comply with radiation protection instructions given by investigators within the controlled area. 7) Administration, or possibility of administration, of diagnostic or therapeutic radioisotopes other than the study drug during the study period. 8) Previous administration of 64Cu-PD-29875. 9) Any other condition that the principal investigator or sub-investigator judges to make the subject unsuitable for this study.

Design outcomes

Primary

MeasureTime frame
Safety

Secondary

MeasureTime frame
Lesion-based PET positivity rate, Patient-based PET positivity rate, Pharmacokinetics, Estimated radiation dose

Contacts

Public ContactAnri Inaki

National Cancer Cener Japan

ainaki@east.ncc.go.jp+81-4-7134-6832

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026