Evaluation of Pain Treatment After Total Knee Arthroplasty

The purpose of the study is to characterize opioid use after total knee arthroplasty (TKA).

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Key information

Conditions

Pain Neurologic Manifestations Pathological Conditions, Signs and Symptoms Signs and Symptoms

Age range

18 year–80 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 4

Primary location

Legent Orthopedic and Spine Hospital, Bellaire, Texas, United States

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Key Inclusion Criteria:

Body mass index (BMI) of greater than or equal to (≥) 18.0 to less than or equal to (≤) 40.0 kilogram per meter square (kg/m^2)
Scheduled to undergo an elective primary unilateral TKA surgery

Key Exclusion Criteria:

History of previous TKA surgery on incident side

Other protocol defined Inclusion/Exclusion criteria will apply.

Treatment and study plan

Suzetrigine

Drug

Tablets for oral administration.

Other names: VX-548, JOURNAVX

Placebo

Drug

Placebo matched to SUZ for oral administration

Primary outcomes

Total Opioid Usage

Time frame: 24 hours to 168 hours after the first dose of study drug

Study contacts

Contact information is provided by the study sponsor or research team.

Medical Information

CONTACT

[email protected]

617-341-6777

Sponsors and collaborators

Lead sponsor

Vertex Pharmaceuticals Incorporated

Industry

Registry information

Official study title

A Phase 4, Double-blind, Sequential Cohort Study of Pain Treatment and Recovery After Total Knee Arthroplasty

Important dates

Study start: 2026
Primary completion: 2027
Study completion: 2027
First posted: Apr 20, 2026
Registry last updated: Aug 18, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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