Completed PHASE3 INTERVENTIONAL 2-arm NCT00399568

Efficacy and Safety of Intravenous Acetaminophen Over 48 Hrs for the Treatment of Post-op Pain After Gynecologic Surgery

Phase 3 Randomized, Double-Blind, Placebo-Controlled, Multi-Center, Parallel, Multiple-Dose Study of the Analgesic Efficacy and Safety of IV Acetaminophen (APAP) Versus Placebo Over 48 Hours(Hrs) for the Treatment of Postoperative Pain After Gynecologic Surgery

Sponsor: Mallinckrodt

Conditions Hysterectomy Postoperative Pain

Interventions IV Acetaminophen IV Placebo 100 mL solution

Updated 7 times since 2017 Last updated: Sep 8, 2016 Started: Nov 30, 2006 Primary completion: Sep 30, 2007 Completion: Sep 30, 2007

This information is for research purposes only and is not medical advice. Consult a healthcare provider before making any medical decision.

A PHASE3 clinical study on Hysterectomy and Postoperative Pain, this trial is completed. The trial is conducted by Mallinckrodt and has accumulated 7 data snapshots since 2006. Longitudinal tracking of this trial contributes to a broader understanding of treatment development timelines.

Status Flow

Change History

7 versions recorded

Sep 2025 — Present [monthly]

Completed PHASE3
Sep 2024 — Sep 2025 [monthly]

Completed PHASE3
Jul 2024 — Sep 2024 [monthly]

Completed PHASE3
Jan 2021 — Jul 2024 [monthly]

Completed PHASE3
Jun 2018 — Jan 2021 [monthly]

Completed PHASE3

▶ Show 2 earlier versions

Feb 2017 — Jun 2018 [monthly]

Completed PHASE3
Jan 2017 — Feb 2017 [monthly]

Completed PHASE3

First recorded

Nov 2006

Trial started

Per CT.gov start date — pre-dates our first snapshot

Eligibility Summary

No eligibility information available.

Contact Information

Sponsor contact:

Mallinckrodt

Data source: Mallinckrodt

For direct contact, visit the study record on ClinicalTrials.gov .

Study Locations

Albany, United States , Altoona, United States , Arcadia, United States , Birmingham, United States , Boynton Beach, United States , Camden, United States , Columbus, United States , Ft. Pierce, United States , Glendale, United States , Holly Hill, United States and 14 more locations