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NCT03307993 · ClinicalTrials.gov registry record · Phase 1

Positron Emission Tomography (PET) Study in Patients With Alzheimer's Disease

A Phase 1 study, sponsored by H. Lundbeck A/S.

Terminated
Registry status
Phase 1
Development phase
3
Enrollment target

NCT03307993: Clinical Trial Phase 1 study, sponsored by H. Lundbeck A/S.

NCT03307993 is a Phase 1 study that was terminated before completion, run by H. Lundbeck A/S. The registered enrollment target is 3 participants, below the 60-participant average among 29,502 other Phase 1 trials with a reported enrollment target (95% lower). According to ClinicalTrials.gov, the official US trial registry.

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The verdict

NCT03307993, a Phase 1 study, was terminated before completion, sponsored by H. Lundbeck A/S.

TERMINATED
Registry status
Phase 1
Development phase
3 participants
Enrollment target

Study Summary

To investigate the brain receptor occupancy of idalopirdine in patients with Alzheimer's disease (AD)

Primary Outcome

RO in the region of interest will be calculated as 100 × (1 - BPND(treatment) / BPND(baseline)) where BPND is the binding potential

Interventions

  • DRUG Idalopirdine

Trial Details

FieldValue
Enrollment Target 3 participants
Start Date 2017-09-22
Est. Completion 2018-02-19
Phase Phase 1
H. Lundbeck A/S

72 total trials

Why NCT03307993 stopped before completion

NCT03307993 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 3 participants, a relatively small participant target, below the 60-participant average among 29,502 other Phase 1 trials with a reported enrollment target (95% lower).

The record links to 0 conditions, and to 1 intervention - of which Idalopirdine is the first listed.

NCT03307993 does not publish any study locations in the registry export this page uses.

Frequently Asked Questions

What is clinical trial NCT03307993 about?

NCT03307993 is a clinical study titled "Positron Emission Tomography (PET) Study in Patients With Alzheimer's Disease". To investigate the brain receptor occupancy of idalopirdine in patients with Alzheimer's disease (AD)

What is the current status of trial NCT03307993?

This trial is currently terminated. It is a Phase 1 study. The enrollment target is 3 participants. The study started on 2017-09-22. Estimated completion is 2018-02-19.

What interventions are being tested in trial NCT03307993?

The interventions under investigation include: Idalopirdine (DRUG).

Who is sponsoring clinical trial NCT03307993?

This trial is sponsored by H. Lundbeck A/S, which has 72 total clinical trials registered on ClinicalTrials.gov.

How this trial's enrollment target compares

Where NCT03307993's enrollment target sits among peer trials

3 1999th of 2000 higher than 1 of 2,000 other Phase 1 trials

participants (enrollment target), bucketed by value

Each bar is a band; taller bars hold more other Phase 1 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 NCT03307993, the US trial registry maintained by the National Library of Medicine. NCT03307993 (small enrollment · none site footprint · terminated) retrieved and formatted by PlainTrial, see methodology.