Analgesic Effectiveness of Capsaicin 8% Cutaneous Patch in Children

NCT ID: NCT05997979

Last Updated: 2025-12-17

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

PHASE3

Total Enrollment

46 participants

Study Classification

INTERVENTIONAL

Study Start Date

2024-03-05

Study Completion Date

2026-04-05

Brief Summary

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This study concerns children aged to 12 to 17-years with local chronic neuropathic pain after trauma or surgery.

It is a multicentric randomized controlled superiority trial in parallel arms :

* experimental arm: Capsaicin 8% cutaneous patch
* controlled arm : Hydrocolloid dressing

Treatment with capsaicin application is realized at baseline, and repeated 3 months after the first patch application if needed.

Tolerance is assessed during each application and by phone call in following days until stop of cold need.

Efficacy is assessed monthly by clinical consultation until the end of the study (month 4).

Detailed Description

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Children aged to 12 to 17-years monitored in pediatric pain outpatient clinics in the designed investigation centers for a local chronic neuropathic pain lasting more than 2 months after trauma or surgery are proposed to participate the trial.

Children with persistant neuropathic pain (DN4 (Diagnostic Neuropathic Pain) \> or = 3/7 ou DN4 \>or = 4/10) despite oral treatment following recommendations for neuropathic pain may be enrolled in the study.

For children not very painful (NRS-11 (Numeric Rating Scale) \< 7 and FDI (Functional Disability Inventory) \< 30) and without any oral treatment for neuropathic pain, the study may be proposed as first line treatment.

If both the child and his/her parents accept the trial, he/she will be included in the study.

It is a multicentric randomized controlled superiority trial in parallel arms :

* experimental arm: Capsaicin 8% cutaneous patch
* controlled arm : Hydrocolloid dressing

At M0, take place : baseline evaluation, agreement consent signature, inclusion and randomization, as well as first treatment application either capsaicin cutaneous patch or hydrocolloid dressing.

, If needed, the treatment may be done twice with a second application three months later (M3).

Tolerance is assessed during each application and by phone call in following days until stop of cold need.

Efficacy is assessed monthly by clinical consultation until the end of the study 4 months later (M4).

Conditions

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Neuropathic Pain Chronic Pain

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Multicentric randomized controlled superiority trial in parallel arms:

* experimental arm : Capsaicin 8% cutaneous patch
* control arm : Hydrocolloid dressing
Primary Study Purpose

TREATMENT

Blinding Strategy

SINGLE

Participants
There is no mock cutaneous patch available for capsaicin 8% cutaneous patch. So we have chosen hydrocolloid dressing for placebo since it has no known effect on neuropathic pain and the tolerability is expected as excellent.

The patient should not be aware of the specific aspect of capsaicin 8% patch and the protocol of application will be exactly the same. This should keep the patient blinded for the study treatment.

The nurse who applies the patch is unblinded.

Study Groups

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QUTENZA

The experimental product is QUTENZA®, a cutaneous patch which contains 179 mg of capsaicin (capsaicin 8%).The patch measures 14 cm x 20 cm.

The second application takes place three months after the first application.

Group Type ACTIVE_COMPARATOR

Capsaicin 8% patch

Intervention Type DRUG

Patients will receive Capsaicin 8% patch at the inclusion of the study and three months later if it is necessary (persistant pain). Qutenza should be applied to intact, non-irritated, dry skin, and during 30 minutes for the feet or 60 minutes for other areas of the body.

Placebo

The placebo comparator is a hydrocolloid dressing: COMFEEL PLUS TRANSPARENT, a medical device class IIb commercialized by Coloplast. The patch measures 15 cm x 15 cm.

The second application takes place three months after the first application.

Group Type PLACEBO_COMPARATOR

Hydrocolloid dressing

Intervention Type DEVICE

Patients will receive Hydrocolloid dressing at the inclusion of the study and three months later if it is necessary (persistant pain). Hydrocolloid dressing should be applied to intact, non-irritated, dry skin, and during 30 minutes for the feet or 60 minutes for other areas of the body.

Interventions

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Capsaicin 8% patch

Patients will receive Capsaicin 8% patch at the inclusion of the study and three months later if it is necessary (persistant pain). Qutenza should be applied to intact, non-irritated, dry skin, and during 30 minutes for the feet or 60 minutes for other areas of the body.

Intervention Type DRUG

Hydrocolloid dressing

Patients will receive Hydrocolloid dressing at the inclusion of the study and three months later if it is necessary (persistant pain). Hydrocolloid dressing should be applied to intact, non-irritated, dry skin, and during 30 minutes for the feet or 60 minutes for other areas of the body.

Intervention Type DEVICE

Other Intervention Names

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QUTENZA® COMFEEL PLUS TRANSPARENT

Eligibility Criteria

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Inclusion Criteria

* Children aged 12 to 17 years (lower age limit of 12 has been chosen to ensure NPSI full filling).
* Male or female.
* Persistent neuropathic pain more than 3 months after surgery or trauma despite treatment following recommendations.
* Neuropathic pain is defined as a DN4 score equal to or greater than 3/7 or 4/10, and localized in a nerve territory explained by the surgery or the trauma.
* Treatment, survey and follow up must be realized in an identified investigating center of the study
* For patients of childbearing potential: use of an adequate method of contraception\* during the course of the study through 48 hours after the last patch application (girls of childbearing potential must have a negative serum or urine pregnancy test within 7 days prior to the first patch application).

* Adequate contraception includes sexual abstinence, progestogen-only oral hormonal contraception, where inhibition of ovulation is not the primary mode of action, male or female condom with or without spermicide, cap, diaphragm or sponge with spermicide, combination of male condom with either cap, diaphragm or sponge with spermicide (double barrier methods)

Exclusion Criteria

* Intellectual deficiency not allowing full filling of NPSI.
* Insufficient command of the French language to full fill NPSI and other evaluation tools.
* Parents' refusal of consent.
* Minor patients' opposition.
* Underlying neurological disease.
* Ongoing neurotoxic treatment.
* Already treated by capsaicin.
* Cutaneous lesion on pain area.
* Patient presenting a pain area on the face, above the hairline of the scalp, and/or in proximity to mucous membranes
* Hypersensitivity to the active substance or to any of the excipients listed in section 6.1 of Qutenza SmPC.
Minimum Eligible Age

12 Years

Maximum Eligible Age

17 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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University Hospital, Brest

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Philippe J LE MOINE, MD

Role: PRINCIPAL_INVESTIGATOR

CHU of Brest

Locations

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CHU d'Amiens

Amiens, , France

Site Status RECRUITING

CHU d&#39;Angers

Angers, , France

Site Status RECRUITING

CHU de Bordeaux

Bordeaux, , France

Site Status RECRUITING

CHU de Brest

Brest, , France

Site Status RECRUITING

CHU de Nantes

Brest, , France

Site Status RECRUITING

CHU de Lyon

Lyon, , France

Site Status RECRUITING

CHU de Marseille

Marseille, , France

Site Status RECRUITING

CHU de Montpellier

Montpellier, , France

Site Status RECRUITING

CHU de Tours

Tours, , France

Site Status RECRUITING

Institut Gustave Roussy

Villejuif, , France

Site Status RECRUITING

Countries

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France

Central Contacts

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Philippe J LE MOINE, MD

Role: CONTACT

+33298223956

Facility Contacts

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Catherine DEVOLDERE

Role: primary

Petronela RACHIERU

Role: primary

Sylvie BERCIAUD

Role: primary

Philippe LE MOINE

Role: primary

Marine LETELLIER

Role: primary

Sabine SIMONIN

Role: primary

Sylvain REDON

Role: primary

Frédéric BERNARD

Role: primary

Florence UETTWILLER

Role: primary

Marie-Anne SEVEQUE

Role: primary

Other Identifiers

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29BRC21.0184

Identifier Type: -

Identifier Source: org_study_id