Study Stopped
Strategic decision
CD8 Minibody Repeatability Study
PRETZCEL
Positron Emission Tomography Repeatability Evaluation of Tissue Zirconium 89Zr Crefmirlimab Berdoxam
Strategic decision
PRETZCEL
Positron Emission Tomography Repeatability Evaluation of Tissue Zirconium 89Zr Crefmirlimab Berdoxam
Sponsor study identifier
interventional
3
1 country
1
Study Start
February 16, 2023
Actual (reported)Primary Completion
May 31, 2024
Actual (reported)Study Completion
May 31, 2024
Actual (reported)Zr-89 crefmirlimab berdoxam is a Zirconium-89 labelled minibody developed by ImaginAb for full body PET imaging of CD8+ cell distribution (CD8 ImmunoPET). The primary objective of this study is to assess the test-retest repeatability of CD8 immunoPET imaging in oncology patients with stable disease.
Registry-reported information. Elapsed time and enrollment totals alone do not measure study progress or recruitment pace.
May 31, 2024
Actual (reported)Click on a node to explore related trials.
Some registry-reported names shown below are not yet linked in this graph.
Dates and qualifiers reported by the registry. Estimated dates do not confirm that a milestone has occurred.
January 19, 2023
Actual (reported)February 16, 2023
Actual (reported)February 24, 2023
Actual (reported)May 31, 2024
Actual (reported)May 31, 2024
Actual (reported)SUVs in tumor
Absolute and relative difference in tumor SUVs
2-4 weeks
SUVs in reference tissues
Absolute and relative difference in reference tissue SUVs
2-4 weeks
ratio of tumor SUVs to reference tissue SUVs
Absolute and relative difference in SUV ratios
2-4 weeks
Safety of repeat doses of Zr-89 crefmirlimab berdoxam
Through study completion, an average of 8 weeks
Eligible subjects will receive up to two zirconium Zr 89 crefmirlimab berdoxam PET scans (up to 1.0 mCi ± 20% at 1.5 mg API per scan, for a total of up to 2.0 mCi ± 20% and 3.0 mg API) as an IV infusion or slow bolus injection. PET/CT imaging is performed 24hrs ± 3hrs post administration. The two scans are performed a minimum 2 weeks apart.
Zirconium-89 labelled minibody for whole body PET imaging to visualize CD8+ cell distribution.
Registry-reported names are shown in full. Names without a link have not yet been matched to a Syfrah profile.
Castle Hill Hospital
Hull, HU16 5JQ, United Kingdom
Azeem Saleem, MB BS DMRT PhD FRCR
Castle Hill Hospital, Hull
3 participants (actual enrollment reported by the registry).
First Submitted
January 19, 2023
First Posted
February 24, 2023
Study Start
February 16, 2023
Actual (reported)Contact the study team to confirm eligibility.
Primary Completion
May 31, 2024
Actual (reported)Study Completion
May 31, 2024
Actual (reported)Last Updated
December 3, 2024
Record last verified: 2024-11
Download the complete ClinicalTrials.gov record imported by Syfrah, including fields not shown in this page. The registry may contain a newer revision.
Source: ClinicalTrials.gov.
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