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NCT01537471 · ClinicalTrials.gov registry record · Phase 1

The Effects of Antihistamines on Pre-Pulse Inhibition

A Phase 1 study, sponsored by Duke University.

Completed
Registry status
Phase 1
Development phase
117
Enrollment target

NCT01537471: Completed Phase 1 study, sponsored by Duke University.

NCT01537471 is a Phase 1 study that has completed, run by Duke University. The registered enrollment target is 117 participants, above the 60-participant average among 29,502 other Phase 1 trials with a reported enrollment target (95% higher). According to ClinicalTrials.gov, the official US trial registry.

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The verdict

NCT01537471, a Phase 1 study, has completed, sponsored by Duke University.

COMPLETED
Registry status
Phase 1
Development phase
117 participants
Enrollment target

Study Summary

The purpose of the investigators research is to test whether problems people have with processing their senses (feeling overwhelmed, distracted or upset by sounds and other stimuli) can be lessened by meclizine, a drug found in many over the counter antihistamines, which are medicines used for things like allergies, sleep problems, or the common cold.

Primary Outcome

The primary outcome will measure change in subjects' PPI depending on whether they were given meclizine during the study. Prepulse inhibition (PPI) of the startle reflex by a weak pre-pulse will be assessed during each laboratory session. It is measured using electromyographic (EMG; i.e., for assessing eye blink magnitude) responses.

Interventions

  • DRUG Placebo
  • DRUG Meclizine

Trial Details

FieldValue
Enrollment Target 117 participants
Start Date 2012-01
Est. Completion 2012-09
Phase Phase 1
Duke University

1,725 total trials

What the finished NCT01537471 record still lists

NCT01537471 is an interventional study that assigns participants to a tested intervention. The registered 117 participants enrollment target is mid-sized for trials with a published cap, above the 60-participant average among 29,502 other Phase 1 trials with a reported enrollment target (95% higher).

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

NCT01537471 does not publish any study locations in the registry export this page uses.

Frequently Asked Questions

What is clinical trial NCT01537471 about?

NCT01537471 is a clinical study titled "The Effects of Antihistamines on Pre-Pulse Inhibition". The purpose of the investigators research is to test whether problems people have with processing their senses (feeling overwhelmed, distracted or upset by sounds and other stimuli) can be lessened by meclizine, a drug found in many over the counter antihistamines, which are medicines used for thing...

What is the current status of trial NCT01537471?

This trial is currently completed. It is a Phase 1 study. The enrollment target is 117 participants. The study started on 2012-01. Estimated completion is 2012-09.

What interventions are being tested in trial NCT01537471?

The interventions under investigation include: Placebo (DRUG), Meclizine (DRUG).

Who is sponsoring clinical trial NCT01537471?

This trial is sponsored by Duke University, which has 1,725 total clinical trials registered on ClinicalTrials.gov.

How this trial's enrollment target compares

Where NCT01537471's enrollment target sits among peer trials

117 499th of 2000 higher than 1,500 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 NCT01537471, the US trial registry maintained by the National Library of Medicine. NCT01537471 (mid enrollment · none site footprint · completed) retrieved and formatted by PlainTrial, see methodology.