Skip to content

Extension Study to Evaluate the Long-Term Safety, Tolerability, and Maintenance of Effect of BIIB074

An Uncontrolled, Open-Label Extension Study to Evaluate the Long-Term Safety, Tolerability, and Maintenance of Effect of BIIB074 (Vixotrigine) in Subjects With Neuropathic Pain From Lumbosacral Radiculopathy

Status
Terminated
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02957617
Acronym
RELAY-1 Extend
Enrollment
302
Registered
2016-11-08
Start date
2017-02-10
Completion date
2019-02-07
Last updated
2019-02-25

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Neuropathic Pain From Lumbosacral Radiculopathy

Keywords

Neuropathic Pain From Lumbosacral Radiculopathy

Brief summary

The primary objective of the study is to evaluate the long-term safety and tolerability of BIIB074 in participants with neuropathic Pain From Lumbosacral Radiculopathy (PLSR). A secondary objective is to investigate the maintenance of effect during long-term treatment with BIIB074 in participants with neuropathic PLSR. For all efficacy assessments, baseline will be prior to randomization into Study 1014802-203. Another secondary objective is to evaluate the impact of treatment with BIIB074 on quality of life (QoL).

Detailed description

This study was previously posted by Convergence Pharmaceuticals, Ltd., which has been acquired by Biogen. This is an extension study to 1014802-203.

Interventions

Participants will receive an initial dose regimen of 350mg orally twice daily (BID), which may be reduced to 200mg based on tolerability for up to 12 months.

Sponsors

Biogen
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 75 Years
Healthy volunteers
No

Inclusion criteria

Key Inclusion Criteria: * Has completed Study 1014802-203 for its complete duration. Key

Exclusion criteria

* Has met an exclusion criterion for the preceding double-blind Phase 2b study (Study 1014802-203). * Had a protocol deviation regarding inclusion or

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants experiencing Adverse Events(AE) and Serious Adverse Events (SAEs)Up to 395 DaysSafety surveillance

Secondary

MeasureTime frameDescription
Change from Baseline to Week 52 in the weekly average of the daily neuropathic pain score on the Pain Intensity Numerical Rating Scale (PI-NRS)Baseline to Week 52Participants will be asked every evening to rate their overall neuropathic pain for the last 24-hour period. PI-NRS is an 11-point pain intensity numerical rating scale (PI-NRS), where 0=no pain and 10=worst possible pain.
50% neuropathic pain reduction responseAt Week 52Response is defined as a ≥50% reduction in the weekly average of the daily neuropathic pain score from Baseline to Week 52.
30% neuropathic pain reduction responseAt Week 52Response is defined as a ≥30% reduction in the weekly average of the daily neuropathic pain score from Baseline to week 52.
Change from Baseline at each visit in the weekly average of the daily neuropathic pain scoreBaseline through Week 52Participants will be asked every evening to rate their overall neuropathic pain for the last 24-hour period.
Change from Baseline to Week 52 in the weekly average of the daily pain score for low back painBaseline to Week 52Participants will be asked every evening to rate their overall low back pain for the last 24-hour period.
Number of Patient Global Impression of Change (PGIC) responderAt Week 52PGIC is a 7-point self-report scale depicting a participant's rating of overall improvement. Participants rate their change as very much improved, much improved, minimally improved, no change, minimally worse, much worse, or very much worse.
Change from Baseline to Week 52 on the Oswestry Disability Index (ODI)Baseline to Week 52This is a 10-item questionnaire that evaluates how back (or leg) pain affects the ability to manage in everyday life. Each question is rated on a 5 point scale with higher scores indicating higher level of pain.
Change from Baseline to Week 52 in the weekly average of the daily sleep score as assessed by the Sleep Numerical Rating Scale (S-NRS)Baseline to Week 52Participants will be asked every morning to rate on the 11-point S-NRS how leg pain interfered with their sleep quality where 0=no pain and 10=worst possible pain.
Change from Baseline to Week 52 in the Brief Pain Inventory (BPI)-Interference IndexBaseline to Week 52BPI Interference Index is an 11-point numeric rating scale (0 - no interference to 10 - interferes completely) to assess pain-related interference in 7 areas: general activity, mood, walking ability, normal work, including outside the home and housework, relations with other people, enjoyment of life and sleep.
Change from Baseline to Week 52 in the BPI - Pain IndexBaseline to Week 52BPI- Pain Index for pain intensity, is used to assess potential pain quality descriptors that may describe participants' pain on a scale of 0 (no pain) to 10 (pain as bad as you can imagine).
Change from Baseline to Week 52 on the EuroQoL 5-Dimension 5-Level Questionnaire (EQ-5D-5L) health indexBaseline to Week 52The EQ-5D-5L is a standardized instrument for use as a measure of health outcome. It is a health questionnaire that consists of the EQ-5D descriptive system and the EQ visual analogue scale (EQ VAS). The EQ-5D-3L descriptive system comprises the following 5 dimensions: mobility, self-care, usual activities, pain/discomfort and anxiety/depression. Each dimension has 3 levels: no problems, some problems, extreme problems.
Change from Baseline to Week 52 in Short Form 36 Questionnaire (SF-36)Baseline to Week 52SF-36 is a self-administered, generic health status questionnaire consisting of 36 questions that measure 8 health concepts: physical functioning, role limitations due to physical problems, bodily pain, general health perception, vitality, social functioning, role limitations due to emotional problems and mental health.

Countries

Austria, Belgium, Bulgaria, Czechia, Estonia, France, Georgia, Italy, Latvia, Romania, Serbia, Slovakia, Spain, United Kingdom

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026