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

NCT00325819 · ClinicalTrials.gov registry record · Phase 3

Acetaminophen Before Vaccines for Infants Study (AVIS)

A Phase 3 study, sponsored by Kaiser Permanente.

Completed
Registry status
Phase 3
Development phase
374
Enrollment target

NCT00325819: Completed Phase 3 study, sponsored by Kaiser Permanente.

NCT00325819 is a Phase 3 study that has completed, run by Kaiser Permanente. The registered enrollment target is 374 participants, below the 772-participant average among 15,282 other Phase 3 trials with a reported enrollment target (52% lower). According to ClinicalTrials.gov, the official US trial registry.

View on ClinicalTrials.gov ↗

View your shortlist →

The verdict

NCT00325819, a Phase 3 study, has completed, sponsored by Kaiser Permanente.

COMPLETED
Registry status
Phase 3
Development phase
374 participants
Enrollment target

Study Summary

The purpose of this study is to see whether giving acetaminophen (the medicine in Tylenol) for routine infant vaccinations is helpful in preventing fever or other symptoms.

Primary Outcome

Fever, defined as rectal temperature \>=38C within 32 hours of vaccination.

Interventions

  • DRUG Acetaminophen
  • OTHER placebo

Trial Details

FieldValue
Enrollment Target 374 participants
Start Date 2006-05
Est. Completion 2009-09
Phase Phase 3
Kaiser Permanente

294 total trials

What the finished NCT00325819 record still lists

NCT00325819 is an interventional study that assigns participants to a tested intervention. The registered 374 participants enrollment target is mid-sized for trials with a published cap, below the 772-participant average among 15,282 other Phase 3 trials with a reported enrollment target (52% lower).

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

NCT00325819 does not publish any study locations in the registry export this page uses.

Frequently Asked Questions

What is clinical trial NCT00325819 about?

NCT00325819 is a clinical study titled "Acetaminophen Before Vaccines for Infants Study (AVIS)". The purpose of this study is to see whether giving acetaminophen (the medicine in Tylenol) for routine infant vaccinations is helpful in preventing fever or other symptoms.

What is the current status of trial NCT00325819?

This trial is currently completed. It is a Phase 3 study. The enrollment target is 374 participants. The study started on 2006-05. Estimated completion is 2009-09.

What interventions are being tested in trial NCT00325819?

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

Who is sponsoring clinical trial NCT00325819?

This trial is sponsored by Kaiser Permanente, which has 294 total clinical trials registered on ClinicalTrials.gov.

How this trial's enrollment target compares

Where NCT00325819's enrollment target sits among peer trials

374 991st of 2000 higher than 1,010 of 2,000 other Phase 3 trials

participants (enrollment target), bucketed by value

Each bar is a band; taller bars hold more other Phase 3 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

  • NCT03686124 · 375 participants · Phase 1

    ACTengine® IMA203/IMA203CD8 as Monotherapy or in Combination With Nivolumab in Recurrent and/or Refractory Solid Tumors

  • NCT04059172 · 375 participants · Early Phase 1

    Efficacy of Combined Ibuprofen and Acetaminophen Therapy Versus Ibuprofen Alone Versus Placebo Alone for Pain Management

  • NCT04134923 · 375 participants

    Imaging Biomarkers in Preclinical and Symptomatic AD

  • NCT04569747 · 375 participants · Phase 2

    A Single Arm Phase II Study of ADjuvant Endocrine Therapy, Pertuzumab, and Trastuzumab for Patients With Anatomic Stage I Hormone Receptor-positive, HER2-positive Breast Cancer

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 NCT00325819, the US trial registry maintained by the National Library of Medicine. NCT00325819 (mid enrollment · none site footprint · completed) retrieved and formatted by PlainTrial, see methodology.