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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT03919279
Other study ID # APHP190156
Secondary ID
Status Completed
Phase N/A
First received
Last updated
Start date May 29, 2019
Est. completion date December 16, 2019

Study information

Verified date April 2020
Source Assistance Publique - Hôpitaux de Paris
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

Erosive hand osteoarthritis (EHOA) is a subtype of had osteoarthritis characterized by inflammation and pain, with subsequent burden. Few symptomatic treatments are available in EHOA, while this population with EHOA has frequently comorbidities.

Stimulation of the vagus nerve (VN), belonging to parasympathetic system, dampens pro-inflammatory cytokines production by splenic macrophages, through to the binding of acetylcholine neurotransmitter to α7nicotinic receptor on macrophages: this is the cholinergic anti-inflammatory pathway (CAP). Beyond its anti-inflammatory effects, VNS is analgesic in chronic pain disorders (headache, fibromyalgia). Beside implantable devices, VNS may be performed using transcutaneous stimulation of the ascendant auricular branch of the VN (tVNS) at the left ear localized on the cymba conchae tVNS is well-tolerated therapy avoiding invasive neurosurgery.

The investigator do the hypothesis that auricular tVNS using a transcutaneous electrical nerve stimulation (TENS) device could be a novel, simple and well-tolerated analgesic and anti-inflammatory treatment of symptomatic EHOA.


Description:

In symptomatic and inflammatory EHOA patients, we will apply tNVNS using device from Schwa-Medico (TENSeco2 + auricular electrode + conductive gel) 25 Hz stimulation will be applied, intensity escalated up to 15 mA or below if tingling sensation.

tVNS will be performed 1 hour daily for 1 month and we will assess EHOA symptoms (pain and function) at 1 month (end of the study)


Recruitment information / eligibility

Status Completed
Enrollment 20
Est. completion date December 16, 2019
Est. primary completion date December 16, 2019
Accepts healthy volunteers No
Gender All
Age group 18 Years and older
Eligibility Inclusion Criteria:

- Age=18 years

- Symptomatic HOA (1990 American College of Rheumatology criteria)

- EHOA according to hand radiographs with =1 erosive digital joints of proximal or distal interphalangeal joint (phases "E" or "R" of Verbruggen-Veys score)

- Visual Analogic Scale (VAS) for hand pain = 40/100 at inclusion

-=1 interphalangeal joints symptomatic = 3 months despite analgesics or non-steroidal anti-inflammatory drugs (NSAIDs) (or contraindicated)

- =1 symptomatic interphalangeal joint with clinical palpable synovitis at inclusion

- Informed written consent

Exclusion Criteria:

- Isolated thumb-base OA (ie, rhizarthrosis)

- Hand osteoarthritis secondary to other known causes (eg gout, psoriatic arthritis)

- Psoriasis

- Current skin disease of the ear

- Ear canal not adapted to apply the auricular electrode

- History of severe cardiac disease (coronary artery disease, rhythm disturbance, heart failure, valvulopathy)

- Conduction or rhythm disturbances on electrocardiogram

- Symptomatic orthostatic hypotension or vasovagal syncope history

- History of vagotomy

- Pregnancy

- Fibromyalgia

- Use of other electrically active medical devices (eg pacemaker)

- Documented sleep apnea

- Use of corticosteroid (oral, intramuscular, intra-articular or intravenous), immunosuppressive agents, hyaluronic acid injection in interphalangeal joint within the last 3 months

- Hand surgery planned during the study period

- Pregnancy or breastfeeding if applicable

- Oral NSAIDs consumption during the last 48 hours before inclusion

Study Design


Intervention

Device:
active tVNS
tVNS using TENS device from Schwa-Medico (TENSeco2) + auricular electrode applied on the left ear (Schwa-Medico) + conductive gel class I; 25 Hz stimulation 1 hour daily for 1 month

Locations

Country Name City State
France Rheumatology department Saint-Antoine Hospital Paris

Sponsors (1)

Lead Sponsor Collaborator
Assistance Publique - Hôpitaux de Paris

Country where clinical trial is conducted

France, 

Outcome

Type Measure Description Time frame Safety issue
Primary Measure of Pain Self-reported hand pain in the previous 48h measured on a 100 mm visual analogic scale (VAS).
Scoring system:
0= No pain 5= Moderate pain 10= Worst pain
1 month
Secondary Function questionnaire Functional Index for Hand OsteoArthritis (FIHOA): scale minimum 0 , and maximum 30.
Scoring system of the FIHOA:
0 = possible without difficulty
= possible with slight difficulty
= possible with important difficulty
= impossible
1 month
Secondary Side effect Safety : report of side effects during the study period 1 month
Secondary Mean time of daily use and cumulative time of use from the device's tracker Observance : Mean time of daily use and cumulative time of use during the 30 days before the 1 month visit collected from the device's tracker 1 month
Secondary Dose of daily consumption of paracetamol Measure of Pain by daily consumption of paracetamol 1 month
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