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NCT01639157 · ClinicalTrials.gov registry record · NA

Impact of Buspirone Maintenance on the Reinforcing Effects of Cocaine

A NA study, sponsored by William Stoops.

Completed
Registry status
NA
Development phase
9
Enrollment target

NCT01639157: Completed NA study, sponsored by William Stoops.

NCT01639157 is a NA study that has completed, run by William Stoops. The registered enrollment target is 9 participants, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (99% lower). According to ClinicalTrials.gov, the official US trial registry.

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The verdict

NCT01639157, a NA study, has completed, sponsored by William Stoops.

COMPLETED
Registry status
NA
Development phase
9 participants
Enrollment target

Study Summary

Cocaine use disorders are an unrelenting public health concern. Intensive research efforts have yielded behavioral interventions that reduce cocaine use, however, these interventions are not universally effective and treatment effects diminish over time. Development of a pharmacotherapy that enhances the efficacy of these interventions is a priority for the National Institute on Drug Abuse. This study proposes to determine the impact of buspirone maintenance on self-administration of cocaine and alternative reinforcers. These preliminary data will be used to support further research developing buspirone as a pharmacotherapy for cocaine use disorders. We hypothesize that buspirone will attenuate the reinforcing effects of cocaine and increase the reinforcing effects of alternative reinforcers.

Primary Outcome

The reinforcing effects of cocaine were determined using a modified progressive ratio procedure (Stoops et al., 2010) in which subjects made 6 choices between available each available cocaine dose and money (US$0.25). Reinforcing effects are measured for each cocaine dose during both buspirone and placebo maintenance.

Interventions

  • DRUG Placebo
  • DRUG Buspirone

Trial Details

FieldValue
Enrollment Target 9 participants
Start Date 2012-09
Est. Completion 2014-12
Phase NA
William Stoops

13 total trials

What the finished NCT01639157 record still lists

NCT01639157 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 9 participants, a relatively small participant target, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (99% lower).

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

NCT01639157 does not publish any study locations in the registry export this page uses.

Frequently Asked Questions

What is clinical trial NCT01639157 about?

NCT01639157 is a clinical study titled "Impact of Buspirone Maintenance on the Reinforcing Effects of Cocaine". Cocaine use disorders are an unrelenting public health concern. Intensive research efforts have yielded behavioral interventions that reduce cocaine use, however, these interventions are not universally effective and treatment effects diminish over time. Development of a pharmacotherapy that enhance...

What is the current status of trial NCT01639157?

This trial is currently completed. It is a NA study. The enrollment target is 9 participants. The study started on 2012-09. Estimated completion is 2014-12.

What interventions are being tested in trial NCT01639157?

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

Who is sponsoring clinical trial NCT01639157?

This trial is sponsored by William Stoops, which has 13 total clinical trials registered on ClinicalTrials.gov.

How this trial's enrollment target compares

Where NCT01639157's enrollment target sits among peer trials

9 1975th of 2000 higher than 25 of 2,000 other NA trials

participants (enrollment target), bucketed by value

Each bar is a band; taller bars hold more other NA 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 NCT01639157, the US trial registry maintained by the National Library of Medicine. NCT01639157 (small enrollment · none site footprint · completed) retrieved and formatted by PlainTrial, see methodology.