Capsaicin in Digital Osteoarthritis Versus Control

Neuropathic Pain Clinical Trial

— CADOR  

Official title:

Capsaicin in Digital Osteoarthritis Versus Control : a Randomized Study

Clinical Trial Details — Status: Not yet recruiting

Administrative data

• NCT number: NCT06444919
• Other study ID #: PHRC IR 2022 MATHIEU
• Secondary ID: 2024-511159-16-0
• Status: Not yet recruiting
• Phase: Phase 4
• Start date: September 1, 2024
• Est. completion date: January 1, 2028

Study information

• Verified date: May 2024
• Source: University Hospital, Clermont-Ferrand
• Contact: Lise Laclautre
• Phone: 334.73.754.963
• Email: promo_interne_drci[@]chu-clermontferrand.fr
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

The objective of this multicentric, randomized controlled double-blind clinical trial is to demonstrate the efficacy of transdermal application of capsaicin in patients with painful digital osteoarthritis with a neuropathic pain component.

Participants will receive either a transdermal patch of capsaicin 179 mg (8%) or the control treatment (capsaicin 0.04%).

Researchers will compare the intensity of pain in the fingers at day 60 in the capsaicin 8% group versus capsaicin 0.04% (control arm)

Description:

Visit 0 : Screening visit (D0 - 30 days): Screen for eligibility

Visit 1 :Inclusion visit (D0): Randomization and blinded patch application of capsaicin 8% or 0.04%

Visit 2: Follow-up visit 1 (D60 + 7 days): Assessment +/- Patch renewal. Patients with finger pain still greater than 4/10 may receive an open application of a capsaicin 8%

Visit 3:Follow-up visit 2 (D120 +/- 7 days): Final assessment.

For the duration of the study, the patient will record in a notebook: analgesics, anti-inflammatories, corticoids and daily hand pain VAS.

Blood samples will be taken at V1 and V2 for subsequent measurement of pro-inflammatory cytokines (IL6, IL8, TNFa) and markers of cartilage degradation, in order to build up a serum library.

Recruitment information / eligibility

• Status: Not yet recruiting
• Enrollment: 120
• Est. completion date: January 1, 2028
• Est. primary completion date: January 1, 2028
• Accepts healthy volunteers: No
• Gender: All
• Age group: 18 Years and older

Eligibility

Inclusion Criteria:

• Diagnosis of digital osteoarthritis fulfilling the American College of Rheumatology criteria;

• Presence of finger pain of = 40 mm on a visual analogue scale (VAS);

• Presence of finger pain with a neuropathic pain component (DN4 score = 4/10)

• Inadequate response, adverse reactions, and/or contraindications to conventional analgesics and NSAIDs;

Exclusion Criteria:

• Patient with isolated rhizarthrosis;

• Patient with other joint disease affecting the fingers (gout, chondrocalcinosis, RA, spondyloarthritis, psoriatic arthritis);

• Patient with upper extremity pain syndrome that may interfere with the assessment of finger pain;

• Patient with another pathology responsible for neuropathic hand pain (carpal tunnel syndrome, diabetic neuropathy, Guyon's tunnel syndrome, cervicobrachial neuralgia, brachial plexitis);

• Patient with skin lesions on the fingers (psoriasis, wounds, chronic ulcers, eczema, shingles, dermatitis);

• Patient with poorly controlled high blood pressure;

• Patient with hypersensitivity to capsaicin;

• Patient who had 8% capsaicin patch use in the year prior to the study;

• Patient who has received intramuscular, intra-articular or intravenous corticosteroid therapy, another disease-modifying anti-rheumatic therapy (methotrexate, salazopyrine) or an intra-articular injection into the joints of the fingers within the previous 3 months;

• Patient wearing wrist or finger orthoses in the previous month;

• Patient with fibromyalgia;

Related Conditions & MeSH terms

• Neuralgia
• Neuropathic Pain
• Osteoarthritis
• Osteoarthritis Hand

Intervention

Drug:
• Capsaicin 179 Mg Cutaneous Patch
patch application for 30 minutes on the painful fingers.
• Capsaicine low dose 0.04 %
patch application for 30 minutes on the painful fingers. the low-dose patch has a similar appearance to the active patch. It allows you to keep the blind, because it also causes reactions at the capsaicin application site (erythema, burning).

Locations

Country	Name	City	State
France	CHU de Clermont-Ferrand	Clermont-Ferrand

Sponsors (2)

Lead Sponsor	Collaborator
University Hospital, Clermont-Ferrand	Grünenthal GmbH

Country where clinical trial is conducted

France, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Intensity of pain in the fingers	measured on a visual analogic scale ranging from 0 to 100 mm	Day 60
Secondary	Functional disability	Cochin Hand Functional Disability Scale score, Each question is rated from 0 (no difficulty) to 5 (impossible). Total score for 18 questions: 0 - 90. The higher the score, the more impaired the physical function.	Day 60
Secondary	Functional index	Modified Functional Index for Hand OsteoArthritis score (FIHOA), Each question is rated from 0 (no difficulty) to 3 (impossible). Total score for the 10 questions: 0 - 30. The higher the score, the greater the functional disability.	Day 60
Secondary	Anxiety and depression	Hospital Anxiety and Depression Scale score (HADs), Each question is scored from 0 to 3. Total score for the 7 anxiety or depression questions: 0-21. The higher the score, the more anxious or depressed the patient.	Day 60
Secondary	Painful symptoms of osteoarthritis	Osteoarthritis Symptom Inventory Scale score (OASIS9). Localized pain component = 4 questions rated from 0 (no sensation) to 10 (extreme sensation) score = 0-40.; Neuropathic pain component = 2 questions rated from 0 to 10 score = 0-20. Deep pain component = 3 questions rated from 0 to 10 score = 0-30. Total OASIS score: 0-90. A high score indicates intense pain.	Day 60
Secondary	Treatment safety	side effect rate	Day 60
Secondary	Patient impression of change	Patient Global Impression of Change " (PGIC) score. The patient evaluates the degree of improvement of his pain; - Strongly improved; - Moderately improved; - Slightly improved; - No change; - Slightly worsened; - Moderately worsened; - Strongly worsened	Day 60