First-in-human Evaluation of [18F]CETO

NCT ID: NCT05361083

Last Updated: 2022-05-04

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

COMPLETED

Clinical Phase

EARLY_PHASE1

Total Enrollment

20 participants

Study Classification

INTERVENTIONAL

Study Start Date

2019-09-01

Study Completion Date

2022-02-28

Brief Summary

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Purpose of this clinical phase 1 trial was to determine if para-chloro-2-\[18F\]fluoroethyletomidate positron emission computed tomography (\[18F\]CETO-positron emission computed tomography(PET)/computed tomography(CT)) can be used in diagnostics of adrenal tumors and if the biochemical/pharmacological states conditions in humans with various illnesses, compared to healthy humans, such as the radio tracer is suitable?

Detailed Description

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After receiving oral and written information about the study and its potential risks, all participants provided written informed consent. All participants underwent a screening visit 1-28 days before their \[18F\]CETO PET/CT. At the screening visit their medical history was obtained, including besides information of previous disease(s) and medication, also a clinical examination, WHO performance status, height, weight, pulse rate and blood pressure, blood chemistry and haematology.

Right before the PET/CT investigation a baseline assessment was performed including:

* A physical examination according to Modified Early Warning Score (MEWS)
* 12-lead electrocardiogram (ECG)
* Any concomitant medications was recorded
* Medical history - occurrence of any new symptoms and events since the screening visit
* Hematology (International Normalized Ratio (INR) in patients with antiocoagulant treatment).
* Pregnancy test in women.
* Assessment of injection site monitored by visual inspection (rash and phlebitis)

Participants received on average 0,76 mikrograms (range 0,1-1.37 mikrograms) of administered mass of CETO in conjunction to the PET/CT investigation.

Potential adverse events were monitored closely during, and after the administration of \[18F\]CETO, with access to emergency medicine resources.

Each participant remained for observation at least 3 hours after administration of \[18F\]CETO and the following assessments were performed:

* Blood withdrawn for additional post-scan chemical analysis.
* Assessment of injection site monitored by visual inspection (rash and phlebitis).
* MEWS

The ten first participants were evaluated for serious adverse events/adverse events (SAE/AEs) the day after (approximately 24 hours after) performing the \[18F\]CETO PET due to the short half-life of the radionuclide used, fluorine- 18 (T1/2= 109.5 min). Safety reporting was assessed by use of clinical Adverse Events and Common Toxicity Criteria (CTC), laboratory and non-laboratory toxicities.

Conditions

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Primary Aldosteronism Due to Aldosterone Producing Adenoma Primary Aldosteronism Due to Nodular Hyperplasia Adrenal Cushing Syndrome Non-Secretory Adrenal Adenoma Adrenocortical 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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First-in-man investigastion of [18F]CETO

15 patients were investigated with PET/CT after injection of 2,5 MBq/kg \[18F\]CETO. 5 healthy volunteers were investigated twice (Test-retest), with approximately 2 weeks in-between each PET/CT investigation, after injection of 1,3 MBq/kg \[18F\]CETO. Arterial blood samples were taken as well as urinary sampels.

3 out of 5 healthy volunteers were also investigated twice with PET/CT after injection of 13,2 MBq/kg \[15O\]water, performed before the \[18F\]CETO PET/CT.

Group Type EXPERIMENTAL

F18CETO

Intervention Type DRUG

Injection of F18CETO or O15water followed by PET/CT

Interventions

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F18CETO

Injection of F18CETO or O15water followed by PET/CT

Intervention Type DRUG

Other Intervention Names

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Para-chloro-2-[18F]fluoroethyletomidate

Eligibility Criteria

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Inclusion Criteria

* Patients diagnosed with adrenal incidentalomas with an concurrent overproduction of aldosterone or cortisol or no concurrent hormone production, or patients diagnosed with adrenocortical carcinoma

Exclusion Criteria

* pregnancy, age below 18, claustrophobia
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Uppsala University Hospital

OTHER

Sponsor Role collaborator

British Medical Research Council

OTHER_GOV

Sponsor Role collaborator

Uppsala University

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Per Hellman, Professor

Role: STUDY_DIRECTOR

Uppsala University and Uppsala University Hospital

Locations

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Uppsala University Hospital

Uppsala, , Sweden

Site Status

Countries

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Sweden

References

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Silins I, Moreno A, Wall A, Aigbirhio F, Gurnell M, Brown M, Roslin S, Antoni G, Hellman P, Sundin A, Lubberink M. Radiation dosimetry of para-chloro-2-[18F]fluoroethyl-etomidate: a PET tracer for adrenocortical imaging. EJNMMI Res. 2024 May 21;14(1):48. doi: 10.1186/s13550-024-01109-2.

Reference Type DERIVED
PMID: 38771379 (View on PubMed)

Silins I, Sundin A, Lubberink M, O'Sullivan L, Gurnell M, Aigbirhio F, Brown M, Wall A, Akerstrom T, Roslin S, Hellman P, Antoni G. First-in-human evaluation of [18F]CETO: a novel tracer for adrenocortical tumours. Eur J Nucl Med Mol Imaging. 2023 Jan;50(2):398-409. doi: 10.1007/s00259-022-05957-9. Epub 2022 Sep 8.

Reference Type DERIVED
PMID: 36074157 (View on PubMed)

Other Identifiers

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2018-004831-64

Identifier Type: -

Identifier Source: org_study_id

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