To Look at the Characteristics of Synovial Fluid and Cartilage Matrix in Osteoarthritic Knee After Hyaluronic Acid Injection
Quantifications of Biochemical Changes of Synovial Fluid and Cartilage Matrix in Osteoarthritic Knee After Hyaluronic Acid Injection Using Novel MRI (Magnetic Resonance Imaging) and NMR (Nuclear Magnetic Resonance) Techniques
The purpose of this study is to identify novel imaging markers for characterizing the biochemical profiles in synovial fluid and cartilage matrix in OA knee joints after intra-articular HA (Euflexxa) injection using high field NMR and MRI techniques.
We hypothesize that:
- High-field HRMAS NMR spectroscopy will provide sensitive measures for biochemical changes within knee synovial fluid after HA injection;
- Baseline HRMAS spectroscopy, in particular N-acetyl peaks, as well as early changes of glutamate will predict patient response of pain relief after HA injection;
- MR cartilage T1p and T2 quantifications will provide sensitive measures for biochemical changes within knee cartilage matrix after HA injection. Specifically cartilage T1p and T2 will decrease in patients who respond to the treatment, indicating potential beneficial effects of HA injection to cartilage preservation.
Study Overview
Status
Status
Conditions
Conditions
Intervention / Treatment
Intervention / Treatment
Study Type
Study Type
Enrollment (Actual)
Enrollment
Phase
Phase
- Phase 4
Contacts and Locations
Study Locations
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California
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San Francisco, California, United States, 94107
- UCSF - China Basin Imaging Center
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Participation Criteria
Eligibility Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Age 18 to 80 years
- Symptomatic knee OA as defined by the American College of Rheumatology criteria
- Kellgren-Lawrence grade I, II or III on prior x-rays (take within 6 months of screening visit)
- knee pain score >40 mm on a 100 mm visual analogue scale for > 15 days in the last month
- NSAIDs permitted if the dose has been stable for at least one month prior to baseline and stays stable during the study
- Have been recommended for Euflexxa treatment by physician
- Knee effusion based on clinical exam or imaging
Exclusion Criteria:
- Any contraindication to MRI (pregnancy, metallic fragments in the eyes, vascular clips, Pacemakers etc)
- History of knee replacement
- Known sensitivity or allergy to any component of Euflexxa
- Inflammatory arthritis
- Previously received viscosupplementation therapy within 6 months of study enrollment
- Intra-articular injection of corticosteroid to study joint within the past 3 months
- Arthroscopic or open surgery within the previous 12 months or planned surgery to the study joint
- Concomitant medications of oral/parenteral corticosteroids
- Morbid obesity defined as body mass index (BMI) >40 kg/m2
- Active malignancy; an active systemic infection; recent high impact or high energy trauma (clinically defined) to the study joint
- Large knee effusion based on clinical exam or imaging
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Basic Science
- Allocation: N/A
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Number of Arms
Arms and Interventions
Participant Group / ArmParticipant Group / Arm |
Intervention / TreatmentIntervention / Treatment |
|---|---|
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Other: Euflexxa
EUFLEXXA® is a hyaluronate hydrogel produced from bacteria, in a phosphate-buffered saline solution.
It is given as a three week treatment regimen.
It involves injecting of 2cc or 20mg intra-articularly once per week.
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Euflexxa will be injected weekly for 3 consecutive weeks on the knee joint.
Other Names:
MRI of the knee will be acquired during baseline (a week prior to the treatment), follow up visit 1 (1 week after treatment) and follow up visit 2 (3 months after treatment).
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What is the study measuring?
Primary Outcome Measures
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
To Identify Imaging Markers for Characterizing the Biochemical Profiles in Synovial Fluid and Cartilage in Knee OA After HA Injection
Time Frame: 3 months
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The study will demonstrate the feasibility of using MRI and NMR techniques to quantify biochemical changes in synovial fluid and cartilage matrix in OA knees after HA injection.
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3 months
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Secondary Outcome Measures
Secondary Outcome Measures
Outcome Measure |
Time Frame |
|---|---|
|
To Quantify Synovial Fluid Biochemical Changes Using High Field HRMAS NMR Spectroscopy
Time Frame: 3 months
|
3 months
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Other Outcome Measures
Other Outcome Measures
Outcome Measure |
Time Frame |
|---|---|
|
To Quantify Cartilage Matrix Changes Using MR T1p ad T2 Mapping at 3T MRI
Time Frame: 3 months
|
3 months
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Collaborators and Investigators
Sponsor
Sponsor
Collaborators
Collaborators
Investigators
Investigators
- Principal Investigator: Xiaojuan Li, PhD, University of California, San Francisco
Study record dates
Study Major Dates
Study Start
Study Start
Primary Completion (Actual)
Primary Completion
Study Completion (Actual)
Study Completion
Study Registration Dates
First Submitted
First Submitted
First Submitted That Met QC Criteria
First Submitted That Met QC Criteria
First Posted (Estimate)
First Posted
Study Record Updates
Last Update Posted (Actual)
Last Update Posted
Last Update Submitted That Met QC Criteria
Last Update Submitted That Met QC Criteria
Last Verified
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
Other Study ID Numbers
- Ferring-Euflexxa
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
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