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NCT00912288 · ClinicalTrials.gov registry record · Phase 3

A Phase 3 Efficacy Study Of Dimebon In Patients With Moderate To Severe Alzheimer's Disease

A Phase 3 study, sponsored by Pfizer.

Terminated
Registry status
Phase 3
Development phase
86
Enrollment target

NCT00912288: Clinical Trial Phase 3 study, sponsored by Pfizer.

NCT00912288 is a Phase 3 study that was terminated before completion, run by Pfizer. The registered enrollment target is 86 participants, below the 772-participant average among 15,282 other Phase 3 trials with a reported enrollment target (89% lower). According to ClinicalTrials.gov, the official US trial registry.

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The verdict

NCT00912288, a Phase 3 study, was terminated before completion, sponsored by Pfizer.

TERMINATED
Registry status
Phase 3
Development phase
86 participants
Enrollment target

Study Summary

No Dimebon clinical data exist yet in patients with disease that has advanced to the moderate-to-severe stage. Therefore, this study evaluates the safety and efficacy of Dimebon in patients with moderate-to-severe AD who are receiving existing background therapy with memantine.

Primary Outcome

SIB developed for evaluation of cognitive function in participants, who demented to a degree that they cannot complete conventional neuropsychological testing. Test items consisted of simple, one-step commands presented with gestural cues and instructions that were repeated if necessary. SIB test consisted of 51-item scale, divided into 9 subscales: social interaction (0-6), memory (0-14), orientation (0-6), language (0-46), attention (0-6), praxis(0-8), visuospatial ability(0-8), construction(0

Interventions

  • DRUG Dimebon 20 mg po TID
  • DRUG Placebo po TID

Trial Details

FieldValue
Enrollment Target 86 participants
Start Date 2009-09
Est. Completion 2010-08
Phase Phase 3
Pfizer

1,845 total trials

Why NCT00912288 stopped before completion

NCT00912288 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 86 participants, a relatively small participant target, below the 772-participant average among 15,282 other Phase 3 trials with a reported enrollment target (89% lower).

The record links to 0 conditions, and to 2 interventions - of which Dimebon 20 mg po TID is the first listed.

NCT00912288 does not publish any study locations in the registry export this page uses.

Frequently Asked Questions

What is clinical trial NCT00912288 about?

NCT00912288 is a clinical study titled "A Phase 3 Efficacy Study Of Dimebon In Patients With Moderate To Severe Alzheimer's Disease". No Dimebon clinical data exist yet in patients with disease that has advanced to the moderate-to-severe stage. Therefore, this study evaluates the safety and efficacy of Dimebon in patients with moderate-to-severe AD who are receiving existing background therapy with memantine.

What is the current status of trial NCT00912288?

This trial is currently terminated. It is a Phase 3 study. The enrollment target is 86 participants. The study started on 2009-09. Estimated completion is 2010-08.

What interventions are being tested in trial NCT00912288?

The interventions under investigation include: Dimebon 20 mg po TID (DRUG), Placebo po TID (DRUG).

Who is sponsoring clinical trial NCT00912288?

This trial is sponsored by Pfizer, which has 1,845 total clinical trials registered on ClinicalTrials.gov.

How this trial's enrollment target compares

Where NCT00912288's enrollment target sits among peer trials

86 1745th of 2000 higher than 254 of 2,000 other Phase 3 trials

participants (enrollment target), bucketed by value

Each bar is a band; taller bars hold more other Phase 3 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 NCT00912288, the US trial registry maintained by the National Library of Medicine. NCT00912288 (small enrollment · none site footprint · terminated) retrieved and formatted by PlainTrial, see methodology.