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NCT04826549 · ClinicalTrials.gov registry record

A Comparison of Exhaled Carbon Monoxide Measurements Using the iCOquit Smokerlyzer and Vitalograph Breath CO Monitor vs Carboxyhemoglobin From Venous Samples While Validating a Mobile Research Application

A clinical trial of Smoking, Cigarette, sponsored by Rose Research Center.

Completed
Registry status
30
Enrollment target
2
Study locations

NCT04826549: Completed study of Smoking, Cigarette, sponsored by Rose Research Center.

NCT04826549 is a study of Smoking, Cigarette that has completed, run by Rose Research Center. The registered enrollment target is 30 participants, below the 533-participant average among 21 other Smoking, Cigarette trials with a reported enrollment target (94% lower). The trial reports 2 study locations across 1 state. According to ClinicalTrials.gov, the official US trial registry.

View on ClinicalTrials.gov ↗

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The verdict

NCT04826549, a study of Smoking, Cigarette, has completed, sponsored by Rose Research Center.

COMPLETED
Registry status
30 participants
Enrollment target
2
Study locations

Study Summary

The main objective of this study is to determine the accuracy and precision of the iCOquit Smokerlyzer as compared with the gold standard of COHb levels measured in venous plasma samples, as well as assessing its agreement with the Vitalograph BreathCO monitor. Validating the precision and accuracy of the iCOquit Smokerlyzer could establish an additional, less expensive, reliable method for determining smoking status in tobacco research. Additionally, the portability of the device would allow for remote biochemical verification of smoking status, thus enlarging the number of participants that can be included in intervention studies.

Primary Outcome

Determine the accuracy and precision of the iCOquit Smokerlyzer as compared with the gold standard of COHb levels measured in venous plasma samples.

Conditions Studied

Study Locations (2)

North Carolina

  • Rose Research Center - Charlotte
  • Rose Research Center - Raleigh

Trial Details

FieldValue
Enrollment Target 30 participants
Start Date 2021-03-22
Est. Completion 2021-10-27
Rose Research Center

11 total trials

What the finished NCT04826549 record still lists

NCT04826549 is an observational study that tracks outcomes without assigning an intervention. The registry caps enrollment at 30 participants, a relatively small participant target, below the 533-participant average among 21 other Smoking, Cigarette trials with a reported enrollment target (94% lower).

The record links to 1 condition, with Smoking, Cigarette appearing as the primary indexed condition, and to 0 interventions.

NCT04826549 reports a single indexed study location in North Carolina.

Frequently Asked Questions

What is clinical trial NCT04826549 about?

NCT04826549 is a clinical study titled "A Comparison of Exhaled Carbon Monoxide Measurements Using the iCOquit Smokerlyzer and Vitalograph Breath CO Monitor vs Carboxyhemoglobin From Venous Samples While Validating a Mobile Research Application". The main objective of this study is to determine the accuracy and precision of the iCOquit Smokerlyzer as compared with the gold standard of COHb levels measured in venous plasma samples, as well as assessing its agreement with the Vitalograph BreathCO monitor. Validating the precision and accuracy ...

What is the current status of trial NCT04826549?

This trial is currently completed. The enrollment target is 30 participants. The study started on 2021-03-22. Estimated completion is 2021-10-27.

What conditions does trial NCT04826549 study?

This clinical trial studies the following conditions: Smoking, Cigarette.

Who is sponsoring clinical trial NCT04826549?

This trial is sponsored by Rose Research Center, which has 11 total clinical trials registered on ClinicalTrials.gov.

Where is trial NCT04826549 being conducted?

This trial has 2 study locations across North Carolina. Contact the study sites directly through ClinicalTrials.gov for enrollment availability.

Similar trials for Smoking, Cigarette

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 NCT04826549's enrollment target sits among peer trials

30 20th of 21 higher than 2 of 21 other Smoking, Cigarette trials

participants (enrollment target), bucketed by value

Each bar is a band; taller bars hold more other Smoking, Cigarette 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 NCT04826549, the US trial registry maintained by the National Library of Medicine. NCT04826549 (small enrollment · single site footprint · completed) retrieved and formatted by PlainTrial, see methodology.