Conditions: Osteoarthritis, Knee
Keywords: Moderate to severe symptomatic osteoarthritis of the knee
Allocation: NA | Intervention model: SINGLE_GROUP
Enrollment: 392
Healthy volunteers: no

Brief summary:
The purpose of this study is to collect information regarding the long-term (6 and 12 months) safety of Tramadol HCl Once-A-Day(OAD) 300 mg.

Detailed description:

Arms:
arm 1: None

Interventions: intervention 1: Tramadol Once A Day
Intervention descriptions: intervention 1: None

Protocol document: