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TerminatedNCT02511691Updated Aug 12, 2020

PET/MRI Imaging of Glutamate Release in the Brain

A Phase 2 interventional study of 18F-PSS232 in Healthy, sponsored by University of Zurich. Terminated at 1 site in Switzerland. Open to participants aged 20 Years to 75 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2020-08-12.

Sponsored by University of Zurich · Phase 2, Interventional, and Diagnostic

Why this study was terminated
Enough data for a publication, decision of Sponsor-PI
Phase
Phase 2
Study type
Interventional
Enrollment
10
Allocation
Not applicable
Ages
20 Years to 75 Years
Sex
All
01

Study summary

Based on PET (18-PSS232) and MRI, glutamate release after N-acetylcystein challenge will be monitored in human brains.

Read the detailed description

Diagnostic trial with quantification of glutamate release in PET/MR.

02

Conditions studied

  • Healthy
03

In context

Lead sponsor

University of Zurich is the lead sponsor of 1,030 studies on the registry; 130 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
20 Years to 75 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

  • healthy volunteer

Exclusion criteria

Exclusion Criteria:

  • smoker
  • drug addiction
  • significant neurological or psychiatric conditions
05

Study design

Phase
Phase 2
Primary purpose
Diagnostic
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
10 participants (actual)

Study arms

  • Other
    18F-PSS232

    Subjects receive baseline PET with 18F-PSS232 and stimulation PET with 18F-PSS232 after medical challenge with N-acetylcystein

    Drug: 18F-PSS232

Interventions

  • Drug18F-PSS232

    Diagnostic PET Tracer

    Also known as: 18FABP

06

What researchers measure

Primary outcomes

  1. Difference of Binding Potentials of 18F-PSS232 in different brain regions between Baseline PET and PET after medical challenge

    for details, please see Innis: Journal of Cerebral Blood Flow \& Metabolism (2007) 27, 1533-1539

    Time frame: Baseline PET and PET after medical challenge will be scanned within 3 months

07

Study locations

1 site
  • University Hopsital Zurich
    Zurich, 8091, Switzerland
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Aug 12, 2020, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT02511691
Lead sponsor
University of Zurich
Responsible party
Sponsor
First posted
Jul 30, 2015
Start date
Jul 2015
Primary completion
Mar 3, 2016
Completion
Mar 3, 2016
Last update
Aug 12, 2020

Study contacts

Alfred Buck, Prof. Dr.
principal investigator · University of Zurich

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is terminated, as verified in Aug 2020. You cannot join it, but the record below documents what was studied.

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