Acetaminophen/Naproxen Sodium Dose Ranging Study
Public ClinicalTrials.gov record NCT04447040. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
A Randomized, Double-Blind, Placebo-Controlled Study to Evaluate Five Strengths of a Fixed Combination of Acetaminophen/Naproxen Sodium in Postoperative Dental Pain
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
Study assessing the relative efficacy of five strengths of a fixed combination of acetaminophen and naproxen sodium is being investigated to help inform selection of dose(s) for further development and to evaluate the safety of a fixed combination of naproxen sodium and acetaminophen.
Study identification
- NCT ID
- NCT04447040
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 2
- Enrollment
- 304 participants
Conditions and interventions
Conditions
Interventions
- Acetaminophen/naproxen sodium Dose A Drug
- Acetaminophen/naproxen sodium Dose B Drug
- Acetaminophen/naproxen sodium Dose C Drug
- Acetaminophen/naproxen sodium Dose D Drug
- Acetaminophen/naproxen sodium Dose E Drug
- Placebo Drug
Drug
Eligibility (public fields only)
- Age range
- 17 Years to 50 Years
- Sex
- All
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Nov 8, 2020
- Primary completion
- Apr 8, 2021
- Completion
- May 2, 2021
- Last update posted
- Mar 23, 2025
2020 – 2021
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| JBR Clinical Research | Salt Lake City | Utah | 84107 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT04447040, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Mar 23, 2025 · Synced Sep 1, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT04447040 live on ClinicalTrials.gov.