Efficacy and Safety Study of BIIB074 in Participants With Small Fiber Neuropathy
Small Fiber Neuropathy, Diabetes Mellitus
About this trial
This is an interventional treatment trial for Small Fiber Neuropathy
Eligibility Criteria
Key Inclusion Criteria:
- This study will be conducted in subjects who have had a diagnosis of at least probable SFN, length-dependent distribution, for 6 months and ≤10 years prior to screening, defined as a history of the symptoms and clinical signs based on discussions at the ACTTION CONCEPPT meeting on diagnosis of SFN, Washington, DC March 2018, and confirmed by intraepidermal nerve fiber density (IENFD) values, and weekly mean average daily pain (ADP) score of ≥5 and ≤9 on an 11-point Pain Intensity Numeric Rating Scale (PI-NRS) over the last 7 days of prior to the Screening visit.
- In addition to these criteria, subjects with diabetes will be required to have HbA1c ≤11%, treated with oral hypoglycemics and/or subcutaneous insulin or diet, no evidence of ulcers, advanced retinopathy (defined as greater than State 3 [moderate non-proliferative diabetic retinopathy]) (DCCT/EDIC Research Group 2017), severe nephropathy, or clinically significant obstructive atherosclerotic disease or current class IV heart failure to be eligible for the study.
Key Exclusion Criteria:
- Previous exposure to BIIB074 (formerly known as CNV1014802 or GSK1014802).
- Use of capsaicin patch within 3 months prior to Screening.
- Unable or unwilling to discontinue concomitant medications for SFN pain prior to Day 1.
- Unable or unwilling to comply with the prohibited concomitant medication restrictions, including but not limited to UDP-glucuronosyltransferase (UGT) inducers and inhibitors, monoamine oxidase inhibitors (MAOIs), and Nav blockers.
- Use of over-the-counter medications, vitamin and mineral supplements, herbal remedies (including St. John's wort), dietary supplements, or foods (including grapefruit juice) that affect and UGTs.
- Unable or unwilling to discontinue medications that are P-glycoprotein substrates with a narrow therapeutic index, including but not limited to digoxin.
- History of hemophilia or Von Willebrand's disease, or use of anticoagulants that may result in bleeding risk during the skin biopsy.
- Any contraindication, as determined by the Investigator, to performing a skin biopsy for intraepidermal nerve fiber analysis.
NOTE: Other protocol defined Inclusion/Exclusion criteria may apply.
Sites / Locations
- Research Site
- UMHAT 'Dr Georgi Stranski' EAD
- Research Site
- Research Site
- Vancouver General Hospital
- Toronto General Hospital
- Research Site
- Research Site
- Recherche Médicale St-Jérôme Inc.
- Research Site
- Research Site
- Fakultni Nemocnice Brno
- Fakultni Nemocnice u sv. Anny v Brne
- Research Site
- Fakultni nemocnice Ostrava
- Nemocnice Pardubickeho kraje a.s. Pardubicka nemocnice
- Fakultni nemocnice v Motole
- Research Site
- Research Site
- Research Site
- OUH
- Research Site
- CHU Saint Etienne - Hôpital Nord
- Hopital Salengro - CHRU de Lille
- CHU Clermond Ferrand - Hopital Gabriel Montpied
- Research Site
- Hôpital Ambroise Paré - Boulogne-Billancourt
- Research Site
- Hopital Henri Mondor
- Research Site
- Groupement Hospitalier Sud - Hôpital Bicêtre
- CHU Nice - Hôpital de l'Archet 1
- Hopital Lariboisiere
- Clinical Research
- Research Site
- Research Site
- Clinical Research
- Clinical Research
- Gemeinschaftspraxis Diabeteszentrum Dortmund Dr.med. Klaus Busch
- Hausarzt- und Diabetologische Schwerpunktpraxis
- Zentrum fur Klinische Forschung
- Gemeinschaftspraxis für Neurologie
- Research Site
- Diabetologische Schwerpunktpraxis Harburg
- Research Site
- DKD Helios Klinik Wiesbaden
- Research Site
- Research Site
- Research Site
- Research Site
- AHEPA General Hospital of Thessaloniki
- Research Site
- Bekes Megyei Kozponti Korhaz Dr. Rethy Pal Tagkorhaz
- UNO Medical Trials Kft.
- Somogy Megyei Kaposi Mor Oktato Korhaz
- Research Site
- Research Site
- Research Site
- Azienda Socio Sanitaria Territoriale degli Spedali Civili di Brescia (Presidio Spedali Civili)
- Research Site
- Research Site
- Azienda Ospedaliero Univeraitaria Pisana
- Università Campus Bio-Medico di Roma
- Research Site
- Amsterdam UMC, Locatie AMC
- Maastricht UMC+
- Research Site
- Research Site
- PRATIA MCM Kraków
- Research Site
- Research Site
- Praktyka Lekarska Ewa Krzyzagorska
- Research Site
- Regionalna Poradnia Diabetologiczna Zytkiewicz-Jaruga,Stasinska
- Hospital General Universitario de Alicante
- Hospital Universitari de Bellvitge
- Research Site
- Hospital Universitario Reina Sofia
- Research Site
- Research Site
- Hospital Universitario Puerta de Hierro Majadahonda
- Hospital Universitari i Politecnic La Fe
- CHUV - Centre Hospitalier Universitaire Vaudois
- Ospedale Regionale di Lugano
- Kantonspital St. Gallen
- Research Site
- Royal Hallamshire Hospital
- Clinical Reseach
- Research Site
- Research Site
- Guy's Hospital
- King's College Hospital
- St Pancras Clinical Research
- The Royal London Hospital
- Research Site
- John Radcliffe Hospital
- Research Site
Arms of the Study
Arm 1
Arm 2
Arm 3
Experimental
Experimental
Placebo Comparator
BIIB074 350 mg
BIIB074 200 mg
Placebo
Taper Period (if applicable) from neuropathic pain medication, followed by a washout period, then BIIB074 350 mg tablets orally twice daily (BID) Open-Label Run-In Period, then BIIB074 350 mg tablets orally BID Double-Blind Treatment Period.
Taper Period (if applicable) from neuropathic pain medication, followed by a washout period, then BIIB074 350 mg tablets orally twice daily (BID) Open-Label Run-In Period, then BIIB074 200 mg tablets orally BID Double-Blind Treatment Period.
Taper Period (if applicable) from neuropathic pain medication, followed by a washout period, then BIIB074 350 mg tablets orally twice daily (BID) Open-Label Run-In Period, then BIIB074 placebo-matching tablets orally BID Double-Blind Treatment Period.