L-arginine for Knee Osteoarthritis Patients

Trial statusRecruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age40-80
SponsorXiangya Hospital of Central South University

About this trial

This study will examine the pain-relief efficacy and safety of L-arginine in knee OA patients.

Eligibility criteria

Qualifiers

Age between 40 and 80 years.

Knee OA according to the American College of Rheumatology (ACR) clinical criteria.

Knee pain lasting 3 months or longer and a score of 7 or greater on the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) pain subscale (standardized to range from 0-20).

Kellgren-Lawrence (KL) grade 2 or 3.

Disqualifiers

Any use of NSAIDs or other analgesics in the past two weeks.

History of injections of corticosteroids in the past three months or hyaluronic acid in the past 6 months in the index knee.

History of arthroscopy or open surgery in the index knee in the past 12 months.

History of a knee replacement in the index knee or planning to receive such a procedure within 3 months.

Trial design

Treatments tested in this trial

  • L-arginine tablet
  • Placebo tablet

Treatment groups

340 Participants
are divided into 2 treatment groups

Sponsors and collaborators

Xiangya Hospital of Central South University

Lead sponsor

Massachusetts General Hospital

Collaborator

School of Medicine, University of Nottingham

Collaborator

Memorial University of Newfoundland

Collaborator