PREMICE
Prevention of migraine by supraorbital transcutaneous neurostimulation using the Cefaly device (PREMICE): a multi-centre, randomized, sham-controlled trial
Clinical Question
Is supraorbital transcutaneous neurostimulation (STNS) with the Cefaly device effective and safe for preventive treatment of migraine in patients with frequent attacks?
Bottom Line
STNS with the Cefaly device is effective as preventive therapy for migraine, with a therapeutic gain of 26% that is comparable to other preventive anti-migraine treatments, and has an excellent safety profile with no adverse events
Major Points
- This was a multi-centre, double-blind, randomized, sham-controlled trial conducted at 5 Belgian tertiary headache clinics
- 67 patients with ≥2 migraine attacks per month were randomized after a 1-month run-in period to 3 months of daily treatment
- Mean monthly migraine days decreased significantly in the verum group (from 6.94 to 4.88, p=0.023) but not in the sham group (6.54 to 6.22, p=0.608)
- The 50% responder rate was significantly higher with verum STNS (38.1%) compared to sham (12.1%), p=0.023
- The therapeutic gain of 26% is within the range of other preventive drug and non-drug anti-migraine treatments
- Secondary endpoints also favored verum: monthly migraine attacks (p=0.044), monthly headache days (p=0.041), and monthly acute anti-migraine drug intake (p=0.007)
- The safety profile was excellent with no adverse events reported in either group
- Both patients and enrolling neurologists were blinded to treatment allocation
- STNS offers a non-pharmacological alternative for migraine prevention without the side effects of preventive medications
- Previous pilot studies had shown encouraging results for STNS in migraine prevention
Design
Study Type: Multi-centre, double-blind, randomized, sham-controlled, parallel-group trial presented as poster at The European Headache and Migraine Trust International Congress
Randomization: 1
Blinding: Double-blind: patients and enrolling neurologists were blinded to randomization (verum vs sham)
Enrollment Period: Not specified
Follow-up Duration: 3 months treatment period following 1-month run-in
Centers: 5
Countries: Belgium
Sample Size: 67
Analysis: Intention-to-treat analysis was used. Specific statistical methods for comparing outcomes between groups not detailed in this poster abstract
Inclusion Criteria
- Patients with frequent migraine attacks defined as ≥2 migraine attacks per month
Exclusion Criteria
- Not specified in this poster abstract
Baseline Characteristics
| Characteristic | Control | Active |
|---|---|---|
| Mean monthly migraine days at run-in | 6.54 | 6.94 |
Arms
| Field | Verum STNS | Control |
|---|---|---|
| Intervention | Active supraorbital transcutaneous neurostimulation (STNS) using the Cefaly device applied daily for 20 minutes for 3 months | Sham supraorbital stimulation using the Cefaly device applied daily for 20 minutes for 3 months |
| Duration | 3 months (daily 20-minute sessions) | 3 months (daily 20-minute sessions) |
Outcomes
| Outcome | Type | Control | Intervention | HR / OR / RR | P-value |
|---|---|---|---|---|---|
| Co-primary outcomes: (1) change in monthly migraine days from run-in (baseline) to month 3 of treatment; (2) 50% responder rate (percentage of subjects with ≥50% reduction in monthly migraine days) | Primary | Monthly migraine days: 6.22 (from 6.54 baseline); 50% responder rate: 12.1% | Monthly migraine days: 4.88 (from 6.94 baseline); 50% responder rate: 38.1% | Monthly migraine days verum: p=0.023; sham: p=0.608. 50% responder rate: p=0.023 (verum vs sham) | |
| Monthly migraine attacks | Secondary | Not significantly reduced | Significantly reduced | 0.044 (verum group) | |
| Monthly headache days | Secondary | Not significantly reduced | Significantly reduced | 0.041 (verum group) | |
| Monthly acute anti-migraine drug intake | Secondary | Not significantly reduced | Significantly reduced | 0.007 (verum group) | |
| Therapeutic gain (difference in 50% responder rate between groups) | Secondary | 26% (38.1% - 12.1%) | |||
| Any adverse event | Adverse | 0% | 0% |
Subgroup Analysis
Not reported in this poster abstract
Criticisms
- This is a poster presentation with limited methodological detail; full publication would provide more comprehensive information
- Specific per-arm sample sizes not provided (only total n=67)
- Baseline characteristics beyond mean migraine days not reported
- Exclusion criteria not specified
- Statistical methods not detailed
- Short follow-up duration (3 months) - longer-term efficacy and durability of effect unknown
- Conducted only in Belgium at tertiary headache clinics, limiting generalizability
- No information on patient demographics, comorbidities, or previous treatment failures
- Mechanism of action of STNS for migraine prevention not fully elucidated
- Cost-effectiveness analysis not performed
- Optimal treatment duration and frequency not established
- Patient selection criteria beyond attack frequency not specified
Funding
Not explicitly stated in this poster abstract
Based on: PREMICE (The Journal of Headache and Pain, 2013)
Authors: J Schoenen, B Vandersmissen, S Jeangette, ..., D Magis
Citation: Schoenen et al. The Journal of Headache and Pain 2013, 14(Suppl 1):P184
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