Maxigesic IV Phase 3 Bunionectomy Study

Post Operative Pain Clinical Trial

Official title: Maxigesic IV Bunionectomy Study- A Phase 3, Randomized, Double-Blind, Multiple-Dose, Parallel-Group and Placebo-Controlled Study

Status Completed

Clinical Trial Summary

The purpose of the study is to determine the clinical efficacy and safety of Maxigesic IV, acetaminophen IV, Ibuprofen IV versus placebo IV for the treatment of acute postoperative pain after bunionectomy

Clinical Trial Description

AFT Pharmaceuticals Ltd. has been developing a fixed-dose combination of acetaminophen 1000mg and ibuprofen 300mg/100mL solution for infusion (Maxigesic IV) for the temporary relief of postoperative pain, when administration by intravenous route is clinically justified by an urgent need to treat pain or hyperthermia and/or when other routes of administration not possible.

A phase 3 efficacy study (AFT-MXIV-07) is proposed to determine the analgesic effects of the fixed dose combination product Maxigesic IV versus its individual components (acetaminophen IV and ibuprofen IV) and placebo in participants with acute post-operative pain after bunionectomy.

The primary efficacy objective is to determine the efficacy of Maxigesic IV, acetaminophen IV, Ibuprofen IV versus placebo IV as measured by the summed pain intensity difference (SPID) (calculated as a time-weighted average) over 0-48 hours (SPID-48) after time 0.

Other secondary efficacy endpoints are:

VAS Pain intensity difference (PID) at each scheduled assessment time point after Time 0 VAS Pain intensity score at each scheduled assessment time point VAS SPID over 0 to 6 hours (SPID-6), over 0 to 12 hours (SPID-12), and over 0 to 24 hours (SPID-24) after Time 0

Summed pain relief (TOTPAR) (calculated as a time-weighted average) over 0 to 6 hours (TOTPAR-6), over 0 to 12 hours (TOTPAR-12), over 0 to 24 hours (TOTPAR-24) after Time 0, and over 0 to 48 hours (TOTPAR-48) after Time 0

Time to onset of analgesia (measured as time to perceptible pain relief confirmed by meaningful pain relief) using the two-stopwatch method Pain relief score on a 5-point categorical scale at each scheduled time point after Time 0

Peak pain relief

Time to peak pain relief

Time to first perceptible pain relief

Time to meaningful pain relief

Proportion of subjects using rescue medication

Time to first use of rescue medication (duration of analgesia)

Total use of rescue analgesia over 0 to 24 hours and over 0 to 48 hours Patient's global evaluation of study drug ;

Related Conditions & MeSH terms

• Pain, Postoperative
• Post Operative Pain

• NCT number: NCT02689063
• Study type: Interventional
• Source: AFT Pharmaceuticals, Ltd.
• Status: Completed
• Phase: Phase 3
• Start date: October 26, 2016
• Completion date: September 15, 2017