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Methoxyflurane versus Standard Care for Non-Traumatic Pain in the Emergency Department (PAIN-THROX) : A Multicenter, Randomized, Controlled, Superiority Trial

Status
Not yet recruiting
Phases
Phase 3
Study type
Interventional
Source
EU CTIS
Registry ID
CTIS2025-525001-21-00
Enrollment
164
Registered
2026-06-29
Start date
Unknown
Completion date
Unknown
Last updated
2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Non-traumatic pain

Brief summary

The primary endpoint will be pain assessed using the Visual Analog Scale (VAS). The VAS is a simple pain assessment tool consisting of marking a point on a color-graded ruler calibrated in millimeters, allowing pain intensity to be assigned a numerical value ranging from 0 (no pain) to 100 mm (unbearable pain). Pain will be assessed at inclusion, at 3 minutes post-randomization, and then at 5, 10, 15, 20, 25, and 30 minutes using self-administered questionnaires.

Detailed description

Time to onset of pain relief within the first 30 minutes.Measurement of VAS over the first 30 minutes, Pain measured again using the VAS at 60, 90, and 120 minutes post-randomization via self-administered questionnaires., The need for rescue analgesic treatment of any class due to insufficient pain relief or pain recurrence., Adverse events and serious adverse events reported in each group.

Interventions

Sponsors

Centre Hospitalier Regional Universitaire De Tours
Lead SponsorOTHER

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Design outcomes

Primary

MeasureTime frame
The primary endpoint will be pain assessed using the Visual Analog Scale (VAS). The VAS is a simple pain assessment tool consisting of marking a point on a color-graded ruler calibrated in millimeters, allowing pain intensity to be assigned a numerical value ranging from 0 (no pain) to 100 mm (unbearable pain). Pain will be assessed at inclusion, at 3 minutes post-randomization, and then at 5, 10, 15, 20, 25, and 30 minutes using self-administered questionnaires.

Secondary

MeasureTime frame
Time to onset of pain relief within the first 30 minutes.Measurement of VAS over the first 30 minutes, Pain measured again using the VAS at 60, 90, and 120 minutes post-randomization via self-administered questionnaires., The need for rescue analgesic treatment of any class due to insufficient pain relief or pain recurrence., Adverse events and serious adverse events reported in each group.

Outcome results

None listed

Source: EU CTIS · Data processed: Jun 30, 2026