New patch uses heat to zap back pain without pills

NCT ID NCT05137041

Completed Symptom relief Sponsor: Sanofi Source: ClinicalTrials.gov ↗

First seen Jun 26, 2026 · Last updated Jun 26, 2026

Summary

This study tested a special patch that gives off infrared heat to treat mild to moderate acute low back pain. 221 adults with back pain for less than a month wore the patch. Researchers measured how many people felt at least 30% less pain after 5 days without needing extra painkillers.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance: Infrared therapy patch (FIRTECH)
What this could lead to: If it works, this could provide a drug-free option for easing acute low back pain at home.
What could go wrong: This is a completed phase 3 trial, but results are not yet published. The patch may not reduce pain more than no treatment, and some people may have skin irritation.

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Conditions

The condition(s) this trial relates to.

Low Back Pain

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

LOW BACK PAIN

Contacts and locations

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Locations

Investigational Site Number :01

Munich, 80809, Germany
Investigational Site Number :02

Leipzig, 04103, Germany
Investigational Site Number :03

Weinheim, 69469, Germany
Investigational Site Number :06

Bad Homburg, 61348, Germany
Investigational Site Number :4

Chieti, 66100, Italy
Investigational Site Number :5

Alessandria, 15100, Italy
Investigational Site Number :7

Taormina, Messina, 98039, Italy

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