Comparing Hyaluronic Acid Injection to Normal Saline for Knee Osteoarthritis

The Efficacy of Hyaluronic Acid Injection as an Adjunctive Treatment After Intraarticular Low-dose Glucocorticoid Injection for Symptomatic Knee Osteoarthritis: A Multicenter Randomized, Controlled, Double-blinded Study

Phase 4 Interventional Phramongkutklao College of Medicine and Hospital · NCT06279507

This study is testing if Hyaluronic acid injections can help people with knee osteoarthritis feel less pain and move better compared to regular saline injections.

Quick facts

PhasePhase 4
Study typeInterventional
Enrollment176 (estimated)
Ages50 Years and up
SexAll
SponsorPhramongkutklao College of Medicine and Hospital Academic / other
Locations1 site (Bangkok)
Trial IDNCT06279507 on ClinicalTrials.gov

What this trial studies

This clinical trial aims to evaluate the effectiveness of Hyaluronic acid injections in alleviating symptoms of knee osteoarthritis, including pain, stiffness, and joint function. Participants diagnosed with knee osteoarthritis will receive either Hyaluronic acid or normal saline injections following a glucocorticoid injection. The study will assess improvements in knee performance and health-related quality of life over a follow-up period of 12 and 24 weeks. The primary goal is to determine if Hyaluronic acid provides superior benefits compared to a placebo.

Who should consider this trial

Good fit: Ideal candidates are individuals diagnosed with knee osteoarthritis who experience moderate to severe knee pain.

Not a fit: Patients with cognitive impairments, serious comorbidities, or those currently pregnant or lactating may not benefit from this study.

Why it matters

Potential benefit: If successful, this treatment could significantly improve pain management and quality of life for patients with knee osteoarthritis.

How similar studies have performed: Previous studies have shown promising results for Hyaluronic acid injections in treating knee osteoarthritis, indicating potential for success in this approach.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* All participants who had been diagnosed as knee osteoarthritis according to ACR criteria with symptom of knee pain
* Pain visual analog scare of 4 or higher

Exclusion Criteria: Participants who have

* Cognitive impairment
* History of aller to Hyaluronic acid or its component
* History of knee arthropathy
* Concomitant with inflammatory arthritis
* Serious comorbidities or bedridden status
* Current pregnancy or lactation
* Currently use of symptomatic slow acting drugs for osteoarthritis (SYSADOA)
* Communication problem

Where this trial is running

Bangkok

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Knee OsteoarthritisPain, JointStiffness of Knee, Not Elsewhere ClassifiedQuality of LifeHyaluronic acidAdjunctive treatment
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.