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Trial registered on ANZCTR
Registration number
ACTRN12624000824561
Ethics application status
Approved
Date submitted
19/06/2024
Date registered
4/07/2024
Date last updated
29/09/2024
Date data sharing statement initially provided
4/07/2024
Type of registration
Prospectively registered
Titles & IDs
Public title
Clearview-BC: A phase 1 Positron Emission Tomography (PET) - Computed Tomography (CT) study to evaluate the safety, biodistribution and pharmacokinetics of 89Zr-hu/mo-10D7 in patients with Bladder Cancer
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Scientific title
Clearview-BC: A phase 1 PET-CT study to evaluate the safety, biodistribution and pharmacokinetics of 89Zr-hu/mo-10D7 in patients with Bladder Cancer
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Secondary ID [1]
312364
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nil
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Universal Trial Number (UTN)
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Trial acronym
Clearview-BC
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Linked study record
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Health condition
Health condition(s) or problem(s) studied:
Metastatic Bladder Cancer
334149
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Condition category
Condition code
Cancer
330821
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0
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Bladder
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Intervention/exposure
Study type
Interventional
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Description of intervention(s) / exposure
Participants will receive a single intravenous dose of 89Zr-hu/mo-10D7 (up to 4.5 mg protein; 37 MBq radiation) as an intravenous infusion over 30 minutes under a low-risk, micro-dosing regimen. Administration of 89Zr-hu/mo-10D7 will be undertaken by Registered Nurses within the Dept of Nuclear Medicine, RBWH.
Imaging PET-CT scans will be undertaken by a Nuclear Medicine Technologist at the Herston Imaging Research Facility (HIRF) at the following timepoints:
Day 0 - 4 hours post infusion
Day 1 - approx 24 hours post infusion
Day 3* - 3 days post infusion (+/- 1 day)
Day 7 - 7 days post infusion (+/- 1 day)
Duration of the imaging is approximately 15-30mins. No further injections will occur post administration of the investigative agent.
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Intervention code [1]
328861
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Diagnosis / Prognosis
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Comparator / control treatment
There is no control group, however, comparison is with prior diagnostic CT scan and uptake on an FDG-PET scan.
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Control group
Uncontrolled
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Outcomes
Primary outcome [1]
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Determine the safety of 89Zr-hu/mo-10D7 in patients who have advanced metastatic bladder cancer.
Safety will be assessed by the incidence of Adverse Events including but not limited to vital signs such as heart rate, blood pressure, respiratory rate and temperature.
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Assessment method [1]
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Vital signs will be assessed by a qualified clinician with the use of hospital vital signs patient monitors which include pulse rate, thermometry, blood pressure. Respiratory rate determined by clinical assessment.
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Timepoint [1]
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Screening visit
Baseline (Pre-dose)
30 mins post administration
1 hour post administration
2 hours post administration
4 hours post administration
Day 2 (24 hours) post administration
Day 3 (+/- 1 day) post administration
Day 7 (+/- 1 day) post administration
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Primary outcome [2]
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Safety will be determined by Electrocardiogram (ECG) to review significant changes from baseline and post administration
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Assessment method [2]
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ECG test performed by qualified clinician.
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Timepoint [2]
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Screening
2 hours post administration.
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Primary outcome [3]
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Safety will be determined by biochemistry, coagulation and haematology data to review significant changes from baseline and post administration
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Assessment method [3]
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Biochemistry data - Sodium, potassium, chloride, calcium, glucose, creatinine, urea, albumin, total bilirubin, aspartate transaminase (AST), alanine transaminase (ALT), alkaline phosphatase, gamma-glutamyl transferase (GGT), lipase, amylase, total protein.
Coagulation data - prothrombin time (PT), reagent-independent prothrombin ratio (international normalised ratio; INR), activated partial thromboplastin time (aPTT).
Haematology data - Haemoglobin, haematocrit, mean corpuscular volume (MCV), mean corpuscular haemoglobin (MCH), white blood cell count (total and differential: leukocytes, neutrophils, eosinophils, basophils, lymphocytes, monocytes), red blood cells, platelets.
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Timepoint [3]
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Screening
Day 0 Baseline
Day 3 (+/- 1 day) post administration
Day 7 (+/- 1 day) post administration
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Secondary outcome [1]
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Future theranostic use.
This will be assessed as a composite outcome.
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Assessment method [1]
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The suitability of hu/mo-10D7 for subsequent use as a theranostic, which will be assessed by measurement of uptake in tumours compared with uptake in normal tissues, using both semi-quantitative measures, Maximum Standardised Uptake Values (SUVmax), as well as formal organ and tumour dosimetry estimates from multi time point imaging.
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Timepoint [1]
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PET-CT scans will be undertaken on Day 0 at 4 hours, and Day 1, Day 3*, and Day 7* after injection of the tracer (*+/- 1 day).
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Secondary outcome [2]
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Determine the pharmacokinetics of hu/mo-10D7
This will be assessed as a composite outcome
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Assessment method [2]
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i) Pharmacokinetics of radiation decay of 89Zr-hu/mo-10D7 will determine Maximum Observed Plasma Concentration (Cmax), Terminal Phase Half-life (t1/2), Mean Residence Time (MRT), Elimination Rate Constant (Lambda-z), and Clearance rate, for individual participants and collated for the cohort from:
i)a) scintillation counting;
i)b) PET/CT scans.
ii) Pharmacokinetics of clearance of the protein component of 89Zr-hu/mo-10D7 will be determined in individual participants and collated for the cohort, by analysis of blood for the concentration of hu/mo-10D7 present in blood using an using:
ii)a) enzyme-linked immosorbant assay (ELISA) with the extracellular domain of the target CDCP1 as the capture agent.
ii)b) mass spectrometry analysis.
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Timepoint [2]
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PET/CT scans will be performed after administration of 89Zr-hu/mo-10D7 at the following timepoints:
Day 0 - 4 hours post infusion
Day 1 - approx 24 hours post infusion
Day 3 - 3 days post infusion (+/- 1 day)
Day 7 - 7 days post infusion (+/- 1 day)
PK sampling - PK blood samples are to be taken from a peripheral vein of the arm opposite the infusion site for the determination of activity at the following time points after administration of 89Zr-hu/mo-10D7 on day 0 at 1 hour, 2 hours, 4 hours, Day 1 (24 hours), day 3* and day 7* (*+/- 1 day).
Aliquots of blood and, plasma, and will be measured for 89Zr radioactivity in an isotope well-counter, compared with an aliquot retained from the conjugate preparation, and corrected for decay. Blood activity to be expressed as the percentage of the injected dose per kilogram.
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Secondary outcome [3]
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Perform dosimetry estimates for both malignant bladder tumour and normal human tissues to determine if there is a suitable therapeutic window.
This will be assessed as a composite outcome
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Assessment method [3]
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Biodistribution will be determined for each participant by PET/CT scan imaging calculating:
- mean and effective dose of 89Zr-hu/mo-10D7 in tumours
- mean and effective dose of 89Zr-hu/mo-10D7 in organs dose
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Timepoint [3]
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PET/CT scans will be performed after administration of 89Zr-hu/mo-10D7 at the following timepoints:
Day 0 - 4 hours post infusion
Day 1 - approx 24 hours post infusion
Day 3* - 3 days post infusion (+/- 1 day)
Day 7 - 7 days post infusion (+/- 1 day)
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Eligibility
Key inclusion criteria
• Provide a signed and dated informed consent form
• Be willing to comply with all study procedures and be available for the duration of the study
• Adults greater than or equal to 18 years
• Have histologically proven invasive bladder cancer
• Visible metastatic disease on diagnostic CT and/or FDG-PET imaging
• CDCP1 expression proven on tumour sample
• ECOG 0-1
• Expected survival more than 3 months
• Women of reproductive potential must use highly effective contraception and abstain from getting period during the trial period
• Adequate organ function. Out of range values that are not clinically significant will be permitted, except for the following laboratory parameters, which must be within the ranges specified:
Serum AST and ALT less than or equal to 2.5 x ULN
Serum bilirubin less than or equal to 1.5 x ULN
eGFR GFR greater than or equal to 30 mL/min/ 1.73 m²
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Minimum age
18
Years
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Maximum age
No limit
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Sex
Both males and females
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Can healthy volunteers participate?
No
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Key exclusion criteria
• History of major immunologic reaction to any IgG containing agent
• Prior or ongoing clinically significant illness, medical condition(s), surgical history, physical finding, electrocardiogram (ECG) finding, or laboratory abnormality that, in the investigator’s opinion, could places the subject at an unacceptably high risk, adversely affect the safety of the subject or impair the assessment of study results
• Subject is pregnant, lactating, or and/or plans to become pregnant within the trial period
• Exposure within the past 5 years to chimeric or murine antibodies
• Exposure to a radiopharmaceuticals within the washout period (washout 10 half-lives of the radionuclide)
• Concurrent participation in another clinical trial
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Study design
Purpose of the study
Treatment
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Allocation to intervention
Non-randomised trial
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Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
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Methods used to generate the sequence in which subjects will be randomised (sequence generation)
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Masking / blinding
Open (masking not used)
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Who is / are masked / blinded?
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Intervention assignment
Single group
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Other design features
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Phase
Phase 1
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Type of endpoint/s
Safety/efficacy
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Statistical methods / analysis
SAMPLE SIZE:
The sample size of up to 20 patients was selected based on previous disease-stratifying 89Zr-labelled antibody studies in:
- breast cancer (n=23, anti-VEGFA antibody
- colorectal cancer (n=7; anti-EGFR antibody
- head and neck cancer (n=20; anti-CD44v6 antibody
- pancreatic and ovarian cancer (n=11; anti-mesothelin antibody
DATA ANALYSIS
1. The suitability of hu/mo-10D7 for subsequent use as a theranostic will be assessed for PET scans by measurement of uptake in tumours compared with uptake in normal tissues, using both semi-quantitative measures (SUVmax ratios) as well as formal organ and tumour dosimetry estimates from multi time point imaging.
2. 89Zr-hu/mo-10D7 parameters will also be determined from whole blood concentration-time data measured by scintillation counting and mass spectrometry are: Maximum Observed Plasma Concentration (Cmax); Terminal Phase Half-life (t1/2); Mean Residence Time (MRT); Elimination Rate Constant (Lambda-z); and Clearance rate. Mean Tumour and Organ Dose and Effective Dose of 89Zr-hu/mo-10D7 in tumours and organs, as a fraction of total MBq dose will be determined from PET-CT scans for all participants.
3. Safety will be assessed based on collated data for the cohort of:
i) Adverse events (AE) and serious adverse events (SAE) relating to liver, kidney, cardio-vascular, immunological and haematological toxicities including:
ii) Clinical Chemistry Data - glucose, creatinine, phosphorous, magnesium, calcium, carbon dioxide content, albumin, potassium and sodium.
ii) Haematology Data - haemoglobin, lymphocytes, haematocrit, neutrophil count, platelet count and white blood cell count.
iv) ECG- to review significant changes from baseline to post administration.
v) Vital signs (including pulse rate, blood pressure, temperature, respiratory rate).
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Recruitment
Recruitment status
Not yet recruiting
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Date of first participant enrolment
Anticipated
1/11/2024
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Actual
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Date of last participant enrolment
Anticipated
1/09/2026
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Actual
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Date of last data collection
Anticipated
1/10/2026
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Actual
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Sample size
Target
20
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Accrual to date
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Final
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Recruitment in Australia
Recruitment state(s)
QLD
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Recruitment hospital [1]
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Mater Hospital Brisbane - South Brisbane
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Recruitment hospital [2]
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Royal Brisbane & Womens Hospital - Herston
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Recruitment postcode(s) [1]
42747
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4101 - South Brisbane
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Recruitment postcode(s) [2]
42748
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4029 - Herston
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Funding & Sponsors
Funding source category [1]
316772
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Government body
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Name [1]
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Australian Federal Government CUREator Funding scheme
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Address [1]
316772
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Country [1]
316772
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Australia
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Primary sponsor type
University
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Name
University of Queensland
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Address
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Country
Australia
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Secondary sponsor category [1]
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None
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Name [1]
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Address [1]
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Country [1]
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Ethics approval
Ethics application status
Approved
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Ethics committee name [1]
315540
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Metro North Health Human Research Ethics Committee A
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Ethics committee address [1]
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https://metronorth.health.qld.gov.au/research/ethics-and-governance/human-research-ethics-committee
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Ethics committee country [1]
315540
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Australia
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Date submitted for ethics approval [1]
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28/06/2024
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Approval date [1]
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19/09/2024
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Ethics approval number [1]
315540
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Summary
Brief summary
This study aims to evaluate the safety, biodistribution and pharmacokinetics of 89Zr-hu/mo-10D7 to detect known tumour deposits in patients with metastatic bladder cancer. Who is it for? You may be eligible for this study if you are an adult with recurrent, histologically proven bladder cancer with a macroscopically visible tumour on diagnostic imaging. Study Details All participants who meet the eligibility criteria in this study will receive a single dose of 89Zr-hu/mo-10D7 as an intravenous infusion over 30 minutes to delivery maximum dose of 4.5 mg protein and 37 MBq radiation. During and after completion of the treatment participants will be assessed for safety, biodistribution and pharmacokinetics of 89Zr-hu/mo-10D7 via vital signs, blood tests, ECG, urinalysis and PET/CT scan. It is hoped that this research project will demonstrate hu/mo-10D7 targets bladder cancer metastases in humans and therefore prove its potential utility as a theranostic in ovarian cancer.
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Trial website
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Trial related presentations / publications
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Public notes
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Contacts
Principal investigator
Name
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A/Prof Paul Thomas
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Address
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Department of Nuclear Medicine, Royal Brisbane & Women's Hospital, Butterfield Street, Herston QLD 4029
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Country
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Australia
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Phone
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+61 736467593
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Fax
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Email
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[email protected]
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Contact person for public queries
Name
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Professor John Hooper
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Address
135019
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Mater Research Institute - The University of Queensland, Translational Research Institute, 37 Kent Street, Woolloongabba QLD 4102
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Country
135019
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Australia
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Phone
135019
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+61 734437639
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Fax
135019
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Email
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[email protected]
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Contact person for scientific queries
Name
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Professor John Hooper
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Address
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Mater Research Institute - The University of Queensland, Translational Research Institute, 37 Kent Street, Woolloongabba QLD 4102
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Country
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Australia
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Phone
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+61 734437639
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Fax
135020
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Email
135020
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[email protected]
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Data sharing statement
Will individual participant data (IPD) for this trial be available (including data dictionaries)?
No
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No/undecided IPD sharing reason/comment
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What supporting documents are/will be available?
No Supporting Document Provided
Results publications and other study-related documents
Documents added manually
No documents have been uploaded by study researchers.
Documents added automatically
No additional documents have been identified.
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