NCT07309107

Brief Summary

Reducing injected dose and/or acquisition time in amyloid PET imaging would improve comfort, radiation safety and cost-effectiveness in diagnosis and follow-up of patients. This study evaluates the impact of a deep learning-based noise reduction algorithm on visual analysis and Centiloid quantification when simulating reduced injected doses of \[18F\]flutemetamol.

Trial Health

35
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
40

participants targeted

Target at P25-P50 for all trials

Timeline
Completed

Started Jan 2026

Shorter than P25 for all trials

Status
not yet recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

November 24, 2025

Completed
1 month until next milestone

First Posted

Study publicly available on registry

December 30, 2025

Completed
7 days until next milestone

Study Start

First participant enrolled

January 6, 2026

Completed
14 days until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 20, 2026

Completed
10 days until next milestone

Study Completion

Last participant's last visit for all outcomes

January 30, 2026

Completed
Last Updated

December 30, 2025

Status Verified

December 1, 2025

Enrollment Period

14 days

First QC Date

November 24, 2025

Last Update Submit

December 15, 2025

Conditions

Outcome Measures

Primary Outcomes (1)

  • Evaluate the impact of a deep-learning noise reduction algorithm on visual analysis and centiloid quantification when simulating reduced injected doses of 18F-flutemetamol.

    Visual analysis of the cerebral \[¹⁸F\]flutemetamol PET images will be performed by two nuclear medicine specialists in a blinded manner, with a third reader acting as an arbitrator in case of disagreement, according to routine diagnostic criteria.

    Day one

Eligibility Criteria

Age18 Years - 99 Years
Sexall
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodProbability Sample
Study Population

Patients with objective cognitive impairment, referred to our department for a cerebral \[¹⁸F\]flutemetamol positron emission tomography scan between January 1, 2023 and July 1, 2025, will be included

You may qualify if:

  • Patients with objective cognitive impairment,
  • Referred to our department for a cerebral \[¹⁸F\]flutemetamol positron emission tomography scan between January 1, 2023 and July 1, 2025,

You may not qualify if:

  • Patient have objected to the use of their data.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

MeSH Terms

Conditions

Alzheimer Disease

Condition Hierarchy (Ancestors)

DementiaBrain DiseasesCentral Nervous System DiseasesNervous System DiseasesTauopathiesNeurodegenerative DiseasesNeurocognitive DisordersMental Disorders

Study Officials

  • Antoine VERGER, MD, PhD

    CHRU of NANCY

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Ayaz TAHMAROV, MD

CONTACT

Véronique ROCH, MSc

CONTACT

Study Design

Study Type
observational
Observational Model
OTHER
Time Perspective
RETROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal Investigator

Study Record Dates

First Submitted

November 24, 2025

First Posted

December 30, 2025

Study Start

January 6, 2026

Primary Completion

January 20, 2026

Study Completion

January 30, 2026

Last Updated

December 30, 2025

Record last verified: 2025-12