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Evaluation of Efficacy and Safety of VX-548 for Painful Lumbosacral Radiculopathy (PLSR)

A Phase 2, Randomized, Double-blind, Placebo-controlled, Parallel-design Study of the Efficacy and Safety of VX-548 in Subjects With Painful Lumbosacral Radiculopathy

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06176196
Enrollment
218
Registered
2023-12-19
Start date
2023-12-13
Completion date
2024-10-16
Last updated
2025-10-01

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

Conditions

Painful Lumbosacral Radiculopathy

Brief summary

The purpose of the study is to evaluate the efficacy and safety of VX-548 in treating participants with PLSR.

Interventions

DRUGVX-548

Tablets for oral administration.

DRUGPlacebo

Tablets for oral administration.

Sponsors

Vertex Pharmaceuticals Incorporated
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to 70 Years
Healthy volunteers
No

Inclusion criteria

Key Inclusion Criteria: * Body weight greater than or equal to (\>=)45 kilogram (kg) * Body mass index (BMI) less than or equal to (\<=) 40 kg/ meter square (m\^2) * Diagnosis of PLSR for greater than (\>)3 months as per criteria pre-specified in the protocol * Weekly average of daily NPRS score \>=4 and \<10 with limited variation in the 7-day Run-in Period Key

Exclusion criteria

* More than 3 missing daily NPRS scores during the 7-day Run-in Period * Moderate or severe painful neuropathy other than PLSR as pre-specified in the protocol * History of prior lumbar spine surgery (e.g., discectomies, laminectomies, foraminotomies, or fusion) Other protocol defined Inclusion/

Design outcomes

Primary

MeasureTime frame
Change From Baseline in the Weekly Average of Daily leg Pain Intensity on a Numeric Pain Rating Scale (NPRS)Baseline, Week 12

Secondary

MeasureTime frame
Change From Baseline in the Weekly Average of the Daily Sleep Interference Scale (DSIS)Baseline, Week 12
Safety and Tolerability as Assessed by Number of Participants With Adverse Events (AEs) and Serious Adverse Events (SAEs)From Day 1 up to Week 14

Countries

United States

Outcome results

None listed

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