CD8 Minibody Repeatability Study

NCT ID: NCT05744128

Last Updated: 2024-12-03

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

TERMINATED

Clinical Phase

PHASE2

Total Enrollment

3 participants

Study Classification

INTERVENTIONAL

Study Start Date

2023-02-16

Study Completion Date

2024-05-31

Brief Summary

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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.

Detailed Description

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Conditions

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Melanoma Renal Cell Carcinoma

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

DIAGNOSTIC

Blinding Strategy

NONE

Study Groups

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Single Arm

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.

Group Type OTHER

Zirconium 89Zr crefmirlimab berdoxam

Intervention Type BIOLOGICAL

Zirconium-89 labelled minibody for whole body PET imaging to visualize CD8+ cell distribution.

Interventions

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Zirconium 89Zr crefmirlimab berdoxam

Zirconium-89 labelled minibody for whole body PET imaging to visualize CD8+ cell distribution.

Intervention Type BIOLOGICAL

Other Intervention Names

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Zr-89 Df-crefmirlimab Zr-89 Df-IAB22M2C

Eligibility Criteria

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Inclusion Criteria

* Aged 18 years and above
* Patients with at least one imageable primary or metastatic lesion \> 1 cm in the lymph nodes or soft tissue excluding bone on the most recent standard of care imaging done within the last 3 months
* Cohort 1: Patients with melanoma on single or multiple agent Immune Checkpoint Blockade (ICB) therapy with stable response status following initiation of therapy. Stable disease would be observed over at least 2 consecutive standard of care CT scans (usually done 8-12 weeks apart) after initiation of therapy.
* Cohort 2: Patients with untreated renal cell carcinoma on active surveillance
* Women of child bearing potential must not be pregnant on study entry
* Participants must agree to follow contraceptive advice while on study and for 30 days after ending participation.

Exclusion Criteria

* Patients with uncontrolled infection or other concurrent malignancies or conditions that may confound interpretation of the scans in the opinion of the investigator
* Patients with urinary catheters or stoma bags
* Patients who have received a vaccine recently can be included to the study but can only be scanned after a washout period of 2 weeks after the vaccine. If participants have a vaccine after the first PET-CT scan, the second PET-CT scan will be delayed for at least 2 weeks after the vaccine
* Patients on steroids except those on replacement dose of steroids for adrenal or pituitary insufficiency. Patients requiring steroids as therapy for an unresolved immune therapy related adverse event will be excluded
* Participants on immunosuppressive medication e.g. cyclosporine, azathioprine, janus kinase inhibitors
* Participant enrolled into another therapeutic intervention study
* Any other contraindication that makes the patient unsuitable to take part in the study in the opinion of the investigator
* Women who are pregnant or breast feeding
* Unable to provide informed consent
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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University of Hull

OTHER

Sponsor Role collaborator

ImaginAb, Inc.

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Azeem Saleem, MB BS DMRT PhD FRCR

Role: PRINCIPAL_INVESTIGATOR

Castle Hill Hospital, Hull

Locations

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Castle Hill Hospital

Hull, , United Kingdom

Site Status

Countries

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United Kingdom

Other Identifiers

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IAB-CD8-204

Identifier Type: -

Identifier Source: org_study_id