Pragmatic evaluation of prescription glucosamine sulfate (pGS) in knee osteoarthritis: insights from a Filipino cohort - Report - MDSpire

Real-World Assessment of Prescription Glucosamine Sulfate in Filipino Patients with Knee Osteoarthritis: Findings from a Multicenter Study

  • By

  • Julie Yu

  • Juan Javier Lichauco

  • Sandra Navarra

  • Raffaella Maria Rita Chiaese

  • Srinivasan Venugopal

  • Scott Haughie

  • Chris Walker

  • July 20, 2026

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Clinical Report: Real-World Assessment of Prescription Glucosamine Sulfate

Overview

This study evaluates the effectiveness and tolerability of prescription glucosamine sulfate (pGS) in Filipino patients with knee osteoarthritis (KOA). Results indicate significant improvements in pain, stiffness, and function over an 8-week period.

Background

Knee osteoarthritis (KOA) is a prevalent condition that significantly impacts the quality of life, especially among older adults. With no known cure and limited disease-modifying interventions available, effective symptomatic treatments are essential. Prescription glucosamine sulfate has been studied for managing KOA symptoms.

Data Highlights

OutcomeBaselineWeek 8LS Mean Change
WOMAC Pain---11.96 (95% CI: -12.26 to -11.67)
VAS Pain68.4 mm11.9 mm-
Patient Satisfaction--98.78%

Key Findings

  • 281 Filipino adults with mild-to-moderate KOA were enrolled in the study.
  • 98.6% of participants completed the study, with 88% receiving pGS monotherapy.
  • 47% of patients achieved ≥50% pain reduction by Week 4.
  • Adverse events occurred in 4.6% of patients, mostly mild, with only one withdrawal.
  • Patients with more advanced KOA also showed significant pain improvement with pGS.

Clinical Implications

The findings indicate that prescription glucosamine sulfate was associated with improvements in symptoms of knee osteoarthritis in Filipino patients.

Conclusion

Prescription glucosamine sulfate improved pain, stiffness, and function in Filipino patients with knee osteoarthritis over the study period.

Related Resources & Content

  1. Clinical Rheumatology, 2018 -- Impact of glucosamine on knee osteoarthritis: a systematic review and meta-analysis
  2. Clinical Rheumatology, 2025 -- Evaluation of the Safety and Efficacy of Intra-Articular High-Purity Sodium Hyaluronate Injections in Knee Osteoarthritis Patients: Results from a 28-Week Post-Market Clinical Follow-Up
  3. Clinical Rheumatology, 2025 -- Understanding the Perspectives and Practices Related to Knee Osteoarthritis: A Regional Analysis Among Chinese Patients
  4. American College of Rheumatology/Arthritis Foundation Guideline for the Management of Osteoarthritis of the Hand, Hip, and Knee, 2019
  5. conexiant — Cross-Linked HA Did Not Outperform Saline
  6. Glucosamine, Chondroitin Sulfate, and the Two in Combination for Painful Knee Osteoarthritis
  7. 2019 American College of Rheumatology/Arthritis Foundation Guideline for the Management of Osteoarthritis of the Hand, Hip, and Knee

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