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

NCT00743093 · ClinicalTrials.gov registry record · Phase 4

Aminotransferase Trends During Prolonged Acetaminophen Dosing

A Phase 4 study of Healthy and Drug Toxicity, sponsored by Denver Health and Hospital Authority.

Completed
Registry status
Phase 4
Development phase
398
Enrollment target
2
Study locations

NCT00743093: Completed Phase 4 study of Healthy and Drug Toxicity, sponsored by Denver Health and Hospital Authority.

NCT00743093 is a Phase 4 study of Healthy and Drug Toxicity that has completed, run by Denver Health and Hospital Authority. The registered enrollment target is 398 participants, below the 647-participant average among 1,090 other Healthy trials with a reported enrollment target (38% lower). The trial reports 2 study locations across 1 state. According to ClinicalTrials.gov, the official US trial registry.

View on ClinicalTrials.gov ↗

View your shortlist →

The verdict

NCT00743093, a Phase 4 study of Healthy and Drug Toxicity, has completed, sponsored by Denver Health and Hospital Authority.

COMPLETED
Registry status
Phase 4
Development phase
398 participants
Enrollment target
2
Study locations

Study Summary

The objective of this study is to monitor liver function tests (blood levels of an indicator of liver function) of healthy people taking the maximum labeled daily dose of acetaminophen compared to people taking placebo for 16 to 40 days. Those people that continue to have normal liver tests after 16 days will have completed their part of the study. People that develop abnormal liver function tests will continue taking acetaminophen or placebo, and have their liver tests monitored closely for up to an additional 24 days. This is to (1) make sure these tests return to normal and (2) determine when these tests return to normal while still taking acetaminophen or placebo. If at any time the liver tests indicate anything more than a minor increase, you would be immediately told to stop taking the study drug. Secondary objective is to determine the proportion of subjects that have detectable acetaminophen-protein adducts after daily dosing.

Primary Outcome

ALT was measured on Day 0 and 16 for all study participants. Subjects with an elevated ALT at Day 16 continued dosing with study drug and continued to have their ALT measured every three days until the ALT elevation resolved or until Day 40. Persistent ALT elevation was defined as any subject with an unresolved ALT elevation at study Day 40.

Conditions Studied

Interventions

  • DRUG placebo
  • DRUG acetaminophen

Study Locations (2)

Colorado

  • University of Colorado Health Sciences Center - GCRC - Aurora
  • Denver Health Rocky Mountain Poison and Drug Center - Denver

Trial Details

FieldValue
Enrollment Target 398 participants
Start Date 2008-08
Est. Completion 2011-08
Phase Phase 4

What the finished NCT00743093 record still lists

NCT00743093 is an interventional study that assigns participants to a tested intervention. The registered 398 participants enrollment target is mid-sized for trials with a published cap, below the 647-participant average among 1,090 other Healthy trials with a reported enrollment target (38% lower).

The record links to 2 conditions, with Healthy appearing as the primary indexed condition, and to 2 interventions - of which placebo is the first listed.

NCT00743093 reports a single indexed study location in Colorado.

Frequently Asked Questions

What is clinical trial NCT00743093 about?

NCT00743093 is a clinical study titled "Aminotransferase Trends During Prolonged Acetaminophen Dosing". The objective of this study is to monitor liver function tests (blood levels of an indicator of liver function) of healthy people taking the maximum labeled daily dose of acetaminophen compared to people taking placebo for 16 to 40 days. Those people that continue to have normal liver tests after 16...

What is the current status of trial NCT00743093?

This trial is currently completed. It is a Phase 4 study. The enrollment target is 398 participants. The study started on 2008-08. Estimated completion is 2011-08.

What conditions does trial NCT00743093 study?

This clinical trial studies the following conditions: Healthy, Drug Toxicity.

What interventions are being tested in trial NCT00743093?

The interventions under investigation include: placebo (DRUG), acetaminophen (DRUG).

Who is sponsoring clinical trial NCT00743093?

This trial is sponsored by Denver Health and Hospital Authority, which has 73 total clinical trials registered on ClinicalTrials.gov.

Where is trial NCT00743093 being conducted?

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

Similar trials for Healthy

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 NCT00743093's enrollment target sits among peer trials

398 64th of 1090 higher than 1,027 of 1,090 other Healthy trials

participants (enrollment target), bucketed by value

Each bar is a band; taller bars hold more other Healthy 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 enrollment target

  • NCT05365581 · 398 participants · Phase 1

    A Study of ASP2138 Given by Itself or Given With Other Cancer Treatments in Adults With Stomach Cancer, Gastroesophageal Junction Cancer, or Pancreatic Cancer

  • NCT03165734 · 399 participants · Phase 3

    A Phase 3 Study of Pacritinib in Patients With Primary Myelofibrosis, Post Polycythemia Vera Myelofibrosis, or Post-Essential Thrombocythemia Myelofibrosis

  • NCT05022862 · 399 participants · NA

    Economic Incentives and vDOT for Latent Tuberculosis Infection

  • NCT00601939 · 397 participants · NA

    Effectiveness of Empowerment Group Sessions for Treating Suicidal African American Women in Abusive Relationships

Similar registry start date

  • NCT05988463 · started 2027-01-01 · Phase 1

    Dose-Escalation Study of Artesunate Patients With IPF

  • NCT07219706 · started 2026-12-10 · NA

    Dietary Fiber and Time Restricted Eating

  • NCT02831335 · started 2026-12-01

    Technical Development of Multi-Parametric Renocerebral MRI

  • NCT05962346 · started 2026-12 · NA

    Fetal Endoscopic Tracheal Occlusion for Congenital Diaphragmatic Hernia

Source: ClinicalTrials.gov NCT00743093, the US trial registry maintained by the National Library of Medicine. NCT00743093 (mid enrollment · single site footprint · completed) retrieved and formatted by PlainTrial, see methodology.