Medical Information Only. Always consult your healthcare provider before enrolling in any clinical trial.

NCT03248713 · ClinicalTrials.gov registry record · Early Phase 1

Glucocorticoid Antagonist Treatment for Tobacco Use Disorder

A Early Phase 1 study, sponsored by Yale University.

Terminated
Registry status
Early Phase 1
Development phase
8
Enrollment target

NCT03248713: Clinical Trial Early Phase 1 study, sponsored by Yale University.

NCT03248713 is a Early Phase 1 study that was terminated before completion, run by Yale University. The registered enrollment target is 8 participants, below the 53-participant average among 2,764 other Early Phase 1 trials with a reported enrollment target (85% lower). According to ClinicalTrials.gov, the official US trial registry.

View on ClinicalTrials.gov ↗

View your shortlist →

The verdict

NCT03248713, a Early Phase 1 study, was terminated before completion, sponsored by Yale University.

TERMINATED
Registry status
Early Phase 1
Development phase
8 participants
Enrollment target

Study Summary

The purpose of this protocol is to examine whether mifepristone, a medication with glucocorticoid receptor antagonist activity, may be a potential treatment for Tobacco Use Disorder (TUD). Mifepristone has already shown promise as a potential treatment for PTSD (1) and alcohol use disorder (AUD) (2), but no previous studies have examined the therapeutic potential of mifepristone for TUD. This will be a double-blind, placebo-controlled study on the effects of a 7-day treatment with 600 mg mifepristone, or placebo, on cognitive function, tobacco withdrawal severity, and smoking behavior.

Primary Outcome

Smokers will be asked to rate several nicotine withdrawal symptoms on a 100 mm scale, from "not at all" to "extremely."

Interventions

  • DRUG Placebo
  • DRUG Mifepristone

Trial Details

FieldValue
Enrollment Target 8 participants
Start Date 2017-11-29
Est. Completion 2019-05-20
Phase Early Phase 1
Yale University

1,492 total trials

Why NCT03248713 stopped before completion

NCT03248713 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 8 participants, a relatively small participant target, below the 53-participant average among 2,764 other Early Phase 1 trials with a reported enrollment target (85% lower).

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

NCT03248713 does not publish any study locations in the registry export this page uses.

Frequently Asked Questions

What is clinical trial NCT03248713 about?

NCT03248713 is a clinical study titled "Glucocorticoid Antagonist Treatment for Tobacco Use Disorder". The purpose of this protocol is to examine whether mifepristone, a medication with glucocorticoid receptor antagonist activity, may be a potential treatment for Tobacco Use Disorder (TUD). Mifepristone has already shown promise as a potential treatment for PTSD (1) and alcohol use disorder (AUD) (2)...

What is the current status of trial NCT03248713?

This trial is currently terminated. It is a Early Phase 1 study. The enrollment target is 8 participants. The study started on 2017-11-29. Estimated completion is 2019-05-20.

What interventions are being tested in trial NCT03248713?

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

Who is sponsoring clinical trial NCT03248713?

This trial is sponsored by Yale University, which has 1,492 total clinical trials registered on ClinicalTrials.gov.

How this trial's enrollment target compares

Where NCT03248713's enrollment target sits among peer trials

8 1782nd of 2000 higher than 176 of 2,000 other Early Phase 1 trials

participants (enrollment target), bucketed by value

Each bar is a band; taller bars hold more other Early 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

Nationwide trials with similar profiles

Cross-condition peers matched on enrollment target and registry start date, not the same-condition list above.

Similar registry start date

  • NCT05962346 · started 2026-12 · NA

    Fetal Endoscopic Tracheal Occlusion for Congenital Diaphragmatic Hernia

  • NCT07125183 · started 2026-12 · Phase 2

    Study on Efficacy and Tolerability of Weekly Doxorubicin in Elderly Patients With Advanced or Metastatic Leiomyosarcoma

  • NCT07292298 · started 2026-11 · Phase 2

    Phase 2 Single-Arm Rectal Cancer Brachytherapy for Patients With Low-Lying Residual Adenocarcinoma After Total Neoadjuvant Therapy to Improve Organ Preservation Rates

  • NCT04263285 · started 2026-10 · NA

    Treatment of Depression Post-SCI

Source: ClinicalTrials.gov NCT03248713, the US trial registry maintained by the National Library of Medicine. NCT03248713 (small enrollment · none site footprint · terminated) retrieved and formatted by PlainTrial, see methodology.