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NCT04514471 · ClinicalTrials.gov registry record · NA

Feasibility Study - Filter Ventilation

A NA study of Tobacco Use, sponsored by Masonic Cancer Center, University of Minnesota.

Completed
Registry status
NA
Development phase
64
Enrollment target
2
Study locations

NCT04514471: Completed NA study of Tobacco Use, sponsored by Masonic Cancer Center, University of Minnesota.

NCT04514471 is a NA study of Tobacco Use that has completed, run by Masonic Cancer Center, University of Minnesota. The registered enrollment target is 64 participants, below the 378-participant average among 76 other Tobacco Use trials with a reported enrollment target (83% lower). The trial reports 2 study locations across 2 states. According to ClinicalTrials.gov, the official US trial registry.

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The verdict

NCT04514471, a NA study of Tobacco Use, has completed, sponsored by Masonic Cancer Center, University of Minnesota.

COMPLETED
Registry status
NA
Development phase
64 participants
Enrollment target
2
Study locations

Study Summary

This open label, between-subject, randomized multi-center pilot study will assess the feasibility of conducting a study remotely with telehealth visits to assess the effect of cigarettes with minimal filter ventilation vs. moderate filter ventilation on smoking behavior and biomarkers of tobacco toxicant exposure. Subjective measures, alveolar carbon monoxide, blood pressure and cigarettes per a day will be collected remotely. Biological samples will be collected at home and mailed to the study clinic.

Primary Outcome

Percent of drop-outs in baseline and post-randomization.

Conditions Studied

Interventions

  • OTHER Unventilated filter cigarettes
  • OTHER Ventilated filter cigarettes

Study Locations (2)

Minnesota

  • University of Minnesota - Minneapolis

Ohio

  • The Ohio State University Comprehensive Cancer Center - Columbus

Trial Details

FieldValue
Enrollment Target 64 participants
Start Date 2024-03-18
Est. Completion 2025-06-30
Phase NA

What the finished NCT04514471 record still lists

NCT04514471 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 64 participants, a relatively small participant target, below the 378-participant average among 76 other Tobacco Use trials with a reported enrollment target (83% lower).

The record links to 1 condition, with Tobacco Use appearing as the primary indexed condition, and to 2 interventions - of which Unventilated filter cigarettes is the first listed.

NCT04514471 reports a single indexed study location in Minnesota, Ohio.

Frequently Asked Questions

What is clinical trial NCT04514471 about?

NCT04514471 is a clinical study titled "Feasibility Study - Filter Ventilation". This open label, between-subject, randomized multi-center pilot study will assess the feasibility of conducting a study remotely with telehealth visits to assess the effect of cigarettes with minimal filter ventilation vs. moderate filter ventilation on smoking behavior and biomarkers of tobacco tox...

What is the current status of trial NCT04514471?

This trial is currently completed. It is a NA study. The enrollment target is 64 participants. The study started on 2024-03-18. Estimated completion is 2025-06-30.

What conditions does trial NCT04514471 study?

This clinical trial studies the following conditions: Tobacco Use.

What interventions are being tested in trial NCT04514471?

The interventions under investigation include: Unventilated filter cigarettes (OTHER), Ventilated filter cigarettes (OTHER).

Who is sponsoring clinical trial NCT04514471?

This trial is sponsored by Masonic Cancer Center, University of Minnesota, which has 249 total clinical trials registered on ClinicalTrials.gov.

Where is trial NCT04514471 being conducted?

This trial has 2 study locations across Minnesota, Ohio. Contact the study sites directly through ClinicalTrials.gov for enrollment availability.

Similar trials for Tobacco Use

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 NCT04514471's enrollment target sits among peer trials

64 47th of 76 higher than 29 of 76 other Tobacco Use trials

participants (enrollment target), bucketed by value

Each bar is a band; taller bars hold more other Tobacco Use 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 NCT04514471, the US trial registry maintained by the National Library of Medicine. NCT04514471 (small enrollment · single site footprint · completed) retrieved and formatted by PlainTrial, see methodology.