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NCT00001662 · ClinicalTrials.gov registry record · Phase 2

Treatment of Alzheimer's Disease With CX516 (Ampalex)

A Phase 2 study, sponsored by National Institute of Neurological Disorders and Stroke (NINDS).

Completed
Registry status
Phase 2
Development phase
40
Enrollment target

NCT00001662: Completed Phase 2 study, sponsored by National Institute of Neurological Disorders and Stroke (NINDS).

NCT00001662 is a Phase 2 study that has completed, run by National Institute of Neurological Disorders and Stroke (NINDS). The registered enrollment target is 40 participants, below the 133-participant average among 30,622 other Phase 2 trials with a reported enrollment target (70% lower). According to ClinicalTrials.gov, the official US trial registry.

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The verdict

NCT00001662, a Phase 2 study, has completed, sponsored by National Institute of Neurological Disorders and Stroke (NINDS).

COMPLETED
Registry status
Phase 2
Development phase
40 participants
Enrollment target

Study Summary

Glutamate is an amino acid released by brain cells that acts to excite other cells. Glutamate attaches to special sites on cells called AMPA (alpha-amino-2,3-dihydro-5 methyl 3-oxo-4-isoxazolepropanoic acid) receptors. The brain cells responsible for releasing glutamate are damaged in Alzheimer's disease and other conditions affecting thinking and reasoning. Researchers would like to see if giving patients a drug that attaches to AMPA receptors improves the symptoms of Alzheimer's disease. CX516 (Ampalex) is a test drug that affects the AMPA receptors. This study will investigate the effectiveness and safety of CX516 on patients with Alzheimer's disease. Patients will be given capsules of CX516 or placebo (sugar pill that neither harms nor helps) for up to 16 weeks in different amounts. The effectiveness of the drug will be measured by neurological tests. Safety will be monitored by frequent check-ups and lab examinations.

Interventions

  • DRUG CX516 (Ampalex)

Trial Details

FieldValue
Enrollment Target 40 participants
Start Date 1996-12
Est. Completion 2005-11
Phase Phase 2

What the finished NCT00001662 record still lists

NCT00001662 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 40 participants, a relatively small participant target, below the 133-participant average among 30,622 other Phase 2 trials with a reported enrollment target (70% lower).

The record links to 0 conditions, and to 1 intervention - of which CX516 (Ampalex) is the first listed.

NCT00001662 does not publish any study locations in the registry export this page uses.

Frequently Asked Questions

What is clinical trial NCT00001662 about?

NCT00001662 is a clinical study titled "Treatment of Alzheimer's Disease With CX516 (Ampalex)". Glutamate is an amino acid released by brain cells that acts to excite other cells. Glutamate attaches to special sites on cells called AMPA (alpha-amino-2,3-dihydro-5 methyl 3-oxo-4-isoxazolepropanoic acid) receptors. The brain cells responsible for releasing glutamate are damaged in Alzheimer's di...

What is the current status of trial NCT00001662?

This trial is currently completed. It is a Phase 2 study. The enrollment target is 40 participants. The study started on 1996-12. Estimated completion is 2005-11.

What interventions are being tested in trial NCT00001662?

The interventions under investigation include: CX516 (Ampalex) (DRUG).

Who is sponsoring clinical trial NCT00001662?

This trial is sponsored by National Institute of Neurological Disorders and Stroke (NINDS), which has 567 total clinical trials registered on ClinicalTrials.gov.

How this trial's enrollment target compares

Where NCT00001662's enrollment target sits among peer trials

40 1362nd of 2000 higher than 542 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 NCT00001662, the US trial registry maintained by the National Library of Medicine. NCT00001662 (small enrollment · none site footprint · completed) retrieved and formatted by PlainTrial, see methodology.