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NCT04497168 · ClinicalTrials.gov registry record · Phase 2

Citalopram as a Posterior Cortical Protective Therapy in Parkinson Disease

A Phase 2 study, sponsored by University of Michigan.

Completed
Registry status
Phase 2
Development phase
58
Enrollment target

NCT04497168: Completed Phase 2 study, sponsored by University of Michigan.

NCT04497168 is a Phase 2 study that has completed, run by University of Michigan. The registered enrollment target is 58 participants, below the 133-participant average among 30,622 other Phase 2 trials with a reported enrollment target (56% lower). According to ClinicalTrials.gov, the official US trial registry.

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The verdict

NCT04497168, a Phase 2 study, has completed, sponsored by University of Michigan.

COMPLETED
Registry status
Phase 2
Development phase
58 participants
Enrollment target

Study Summary

This Parkinson disease (PD) trial will test whether 26 months of citalopram, compared to placebo, can alter the build-up of toxic amyloid-beta plaques in the visuospatial cortex of the brain linked to visuospatial cognitive impairment in PD.

Primary Outcome

PiB PET can assess the density of amyloid-beta plaques in the brain. This imaging method will be used to quantify the amount of change in amyloid-beta plaques levels--measured specifically within the visuospatial cortex--between month 0 and month 26.

Interventions

  • DRUG Placebo
  • DRUG Citalopram 20mg

Trial Details

FieldValue
Enrollment Target 58 participants
Start Date 2021-04-01
Est. Completion 2026-03-02
Phase Phase 2
University of Michigan

1,327 total trials

What the finished NCT04497168 record still lists

NCT04497168 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 58 participants, a relatively small participant target, below the 133-participant average among 30,622 other Phase 2 trials with a reported enrollment target (56% lower).

The record links to 0 conditions, and to 2 interventions - of which Placebo is the first listed.

NCT04497168 does not publish any study locations in the registry export this page uses.

Frequently Asked Questions

What is clinical trial NCT04497168 about?

NCT04497168 is a clinical study titled "Citalopram as a Posterior Cortical Protective Therapy in Parkinson Disease". This Parkinson disease (PD) trial will test whether 26 months of citalopram, compared to placebo, can alter the build-up of toxic amyloid-beta plaques in the visuospatial cortex of the brain linked to visuospatial cognitive impairment in PD.

What is the current status of trial NCT04497168?

This trial is currently completed. It is a Phase 2 study. The enrollment target is 58 participants. The study started on 2021-04-01. Estimated completion is 2026-03-02.

What interventions are being tested in trial NCT04497168?

The interventions under investigation include: Placebo (DRUG), Citalopram 20mg (DRUG).

Who is sponsoring clinical trial NCT04497168?

This trial is sponsored by University of Michigan, which has 1,327 total clinical trials registered on ClinicalTrials.gov.

How this trial's enrollment target compares

Where NCT04497168's enrollment target sits among peer trials

58 1135th of 2000 higher than 860 of 2,000 other Phase 2 trials

participants (enrollment target), bucketed by value

Each bar is a band; taller bars hold more other Phase 2 trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source ClinicalTrials.gov registry export · 2026-08-08

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Source: ClinicalTrials.gov NCT04497168, the US trial registry maintained by the National Library of Medicine. NCT04497168 (small enrollment · none site footprint · completed) retrieved and formatted by PlainTrial, see methodology.