This is a Phase II, 2 arm randomized crossover study. Subjects will be assigned to either active agent or placebo and then crossover to the other arm. This study is designed to evaluate whether Fycompa improves the quality of life in patients with small fiber neuropathy.
This study will enroll 30 patients from our center alone with a proven SFN diagnosis by a skin biopsy assessment of intraepidermal nerve fiber density. The patients must also have a pain score of a least 5 on a VAS Scale. Patients will receive Fycompa 2mg tablets. Each week patients will be allowed to titrate up by 2mgs up to a maximum dose of 8mg a day. This dosing has been used in numerous pain studies when no single dose has been proven to be effective. This does not seem to reduce the validity of the placebo phase. Patients can choose the dose they feel is best tolerated and most efficacious. Once patients choose this dose they will be randomized into two arms. Each arm will last 6 weeks. Such that patient will receive the dose they chose as most efficacious for 6 weeks or matching placebo for 6 weeks. Then each patient will crossover to the other arm. Investigator will assess compliance by counting pills at each visit. This will provide the ability to see which dose most patients prefer and then study the dose in a blinded randomized fashion. There will be 5 office visits and 3 phone visits in the study and . Patients will keep a diary of weekly VAS pain scores.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
30
PNA Center for Neurological Research
Phoenix, Arizona, United States
To Assess the Change of Pain Symptoms Upon Treatment of Fycompa in Comparison to Placebo using Visual Analog Scale (VAS) andBrief Pain inventory(BPI) Short Form
Time frame: Baseline, Week 5, Week 12 and Week 18
To Assess improvement of Quality of Life Upon Treatment of Fycompa in Comparison to Placebo using Neuro QOL Lower Extremity Function Scale, Patient Global impression of Change (PGIC) Scale and Treatment Satisfaction Questionnaire for Medication (TSQM)
Time frame: Baseline, Week 5, Week 12 and Week 18
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