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Evaluation of 89Zr-TLX250 PET/CT in Chinese Patients With Indeterminate Renal Masses or Suspected Recurrent Renal Clear Cell Carcinoma

An Open-label, Phase I Study to Evaluate the Safety, Radiation Dosimetry and Pharmacokinetics of 89Zr-TLX250 PET/CT in Patients With Indeterminate Renal Masses or Suspected Recurrent Renal Clear Cell Carcinoma

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05861778
Acronym
ZIRDOSE-CP
Enrollment
10
Registered
2023-05-17
Start date
2023-06-26
Completion date
2023-11-27
Last updated
2023-12-11

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

Conditions

Clear Cell Renal Cell Carcinoma, Recurrent Renal Cell Cancer, Suspected Recurrent Renal Clear Cell Carcinoma

Keywords

indeterminate renal masses, Suspected Recurrent Renal Clear Cell Carcinoma

Brief summary

The study is designed to evaluate the safety, tolerability, radiation dosimetry and pharmacokinetics 89Zr-TLX250 (also known as 89Zr-DFO-girentuximab) Positron Emission Tomography/Computed Tomography (PET/CT) in adult Chinese patients with indeterminate renal masses or Suspected Recurrent Renal Clear Cell Carcinoma

Interventions

A single administration of 37 MBq (±10%) 89Zr-TLX250, containing a mass dose of 10 mg of girentuximab, followed by whole body PET/CT scans were performed at 0.5h, 4h, 24h, 72 hours and 7±1 days post administration.

Sponsors

Grand Pharmaceutical (China) Co., Ltd.
CollaboratorOTHER
Telix Pharmaceuticals (Innovations) Pty Limited
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
DIAGNOSTIC
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

1. Voluntarily signed written informed consent 2. Chinese male or female≥18 years old. 3. Have an indeterminate renal mass, suspected renal cell carcinoma, or previously diagnosed ccRCC, suspected recurrence on the pre-screening imaging from Day -90 to Day -1 4. Negative serum pregnancy test for female subjects of childbearing potential at screening. Confirmed negative urine pregnancy test within 24 hours prior to administration of investigational product. 5. Expected survival ≥ 6 months. 6. Agree to follow appropriate and highly effective contraception method for at least 35 days after the administration of 89Zr-TLX250.

Exclusion criteria

1. Renal mass is known to be a metastasis of another primary tumor. 2. Have other malignancies that require treatment. 3. Planned antineoplastic therapies (for the period between IV administration of 89Zr-TLX250 and imaging). 4. Have received chemotherapy, radiotherapy, or immunotherapy within 4 weeks prior to the planned administration of 89Zr-TLX250 or such therapy resulted in a persistent adverse event (\> Grade 1) (per National Cancer Institute-Common Toxicity Criteria version 5.0 \[NCICTCAE v5.0\]). 5. Exposure to murine or chimeric antibodies within the last 5 years. 6. Prior use of radionuclides with an interval of less than 10 halflives. 7. Exposure to any investigational diagnostic or therapeutic agent within the first 4 weeks or 5 half-lives (whichever is longer) of the planned administration of 89Zr-TLX250. 8. Renal insufficiency with glomerular filtration rate (GFR) ≤ 60 mL/min/1.73 m². 9. Uncontrolled psychiatric disorders. 10. Women who are pregnant or breastfeeding. 11. Known hypersensitivity to girentuximab or DFO (deferoxamine). 12. Have a serious non-malignant disease (e.g., infectious disease, autoimmune disease, or metabolic disease) that, in the opinion of the investigator, may interfere with the purpose of the study or subject safety or compliance. 13. Vulnerable population (e.g., being in detention).

Design outcomes

Primary

MeasureTime frameDescription
Safety parameter ECG9 daysFrequency of occurrence and severity of abnormal findings in the 12-lead ECG (ECG QT Interval)
Safety parameter Vital Signs9 daysFrequency of occurrence and severity of abnormal findings in safety investigations regarding the Vital signs
Safety parameter Laboratory examinations9 daysFrequency of occurrence and severity of abnormal findings in safety investigations regarding Laboratory examinations.
Safety parameter concomitant medications9 daysFrequency of occurrence and severity of abnormal findings in safety investigations regarding concomitant medications.
Safety parameter Physical Examination9 daysFrequency of occurrence and severity of abnormal findings in safety investigations regarding the physical examination.

Secondary

MeasureTime frameDescription
Radiation dosimetry8 dayswhole body PET/CT scans will be acquired in supine position at 0.5, 4, 24, 72 and 168±24 h (Day 7±1) post injection, using low dose CT without contrast agent. Normalized Absorbed Dose = Absorbed Dose/ Administered Dose
Tumour dosimetryWhole body PET/CT scans will be acquired in supine position at 0.5, 4, 24, 72 and 168±24 h (Day 7±1) post injectionNormalised whole body effective radiation dose (mSv/MBq)
Whole blood radioactivity PK parameters6 daysThis outcome will be measured by analysing the radioactivity present in the blood at baseline (pre-dose), 0.5h, 1h, 2h, 4h, 24h, 72h and Day 5+/-1 day. Assessments include: Cmax (maximum concentration)

Countries

China

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026