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NCT00001921 · ClinicalTrials.gov registry record

Electrophysiology and Blood Flow in Patients With Schizophrenia and Their Siblings

A clinical trial of Healthy and Schizophrenia, sponsored by National Institute of Mental Health (NIMH).

Completed
Registry status
1,386
Enrollment target
1
Study location

NCT00001921: Completed study of Healthy and Schizophrenia, sponsored by National Institute of Mental Health (NIMH).

NCT00001921 is a study of Healthy and Schizophrenia that has completed, run by National Institute of Mental Health (NIMH). The registered enrollment target is 1,386 participants, above the 646-participant average among 1,090 other Healthy trials with a reported enrollment target (115% higher). The trial reports 1 study location across 1 state. According to ClinicalTrials.gov, the official US trial registry.

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The verdict

NCT00001921, a study of Healthy and Schizophrenia, has completed, sponsored by National Institute of Mental Health (NIMH).

COMPLETED
Registry status
1,386 participants
Enrollment target
1
Study location

Study Summary

This study will explore how the brain works during memory testing in an effort to understand why some patients with schizophrenia have memory difficulties. Patients with schizophrenia and their unaffected family members are eligible for this study. Studying family members may help identify the genes related to the memory deficit in schizophrenia. Normal volunteers will also be studied. Normal volunteers, patients with schizophrenia, and their family members interested in participating in this study will be screened with a complete medical examination and psychiatric assessment, and performance of simple tasks. Study participants will be shown numbers on a screen and asked to recall them after a brief period. This will be done during electroencephalographic (EEG) recording, in which electrodes attached to the scalp measure the brain s electrical activity. The same test will be repeated while the patient has magnetic resonance imaging of the brain. The combined MRI and EEG testing will permit better localization of the brain s electrical activity. ...

Conditions Studied

Study Locations (1)

Maryland

  • National Institutes of Health Clinical Center, 9000 Rockville Pike - Bethesda

Trial Details

FieldValue
Enrollment Target 1,386 participants
Start Date 1999-09-21
Est. Completion 2018-06-08

What the finished NCT00001921 record still lists

NCT00001921 is an observational study that tracks outcomes without assigning an intervention. Its 1,386 participants enrollment target places it among the larger protocols in the corpus, above the 646-participant average among 1,090 other Healthy trials with a reported enrollment target (115% higher).

The record links to 2 conditions, with Healthy appearing as the primary indexed condition, and to 0 interventions.

NCT00001921 reports a single indexed study location in Maryland.

Frequently Asked Questions

What is clinical trial NCT00001921 about?

NCT00001921 is a clinical study titled "Electrophysiology and Blood Flow in Patients With Schizophrenia and Their Siblings". This study will explore how the brain works during memory testing in an effort to understand why some patients with schizophrenia have memory difficulties. Patients with schizophrenia and their unaffected family members are eligible for this study. Studying family members may help identify the gene...

What is the current status of trial NCT00001921?

This trial is currently completed. The enrollment target is 1,386 participants. The study started on 1999-09-21. Estimated completion is 2018-06-08.

What conditions does trial NCT00001921 study?

This clinical trial studies the following conditions: Healthy, Schizophrenia.

Who is sponsoring clinical trial NCT00001921?

This trial is sponsored by National Institute of Mental Health (NIMH), which has 343 total clinical trials registered on ClinicalTrials.gov.

Where is trial NCT00001921 being conducted?

This trial has 1 study location across Maryland. Contact the study sites directly through ClinicalTrials.gov for enrollment availability.

Similar trials for Healthy

Matched on the same primary condition, ranked to surface studies in the same phase first, then by recruiting status, no relevance scoring or editorial curation.

Where NCT00001921's enrollment target sits among peer trials

1,386 24th of 1090 higher than 1,067 of 1,090 other Healthy trials

participants (enrollment target), bucketed by value

Each bar is a band; taller bars hold more other Healthy 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 NCT00001921, the US trial registry maintained by the National Library of Medicine. NCT00001921 (large enrollment · single site footprint · completed) retrieved and formatted by PlainTrial, see methodology.