Knee OsteoarthritisPhase 4NCT01895959
To Look at the Characteristics of Synovial Fluid and Cartilage Matrix in Osteoarthritic Knee After Hyaluronic Acid Injection
A Phase 4 study testing Euflexxa and Magnetic Resonance Imaging (MRI) in people with Knee Osteoarthritis, run by University of California, San Francisco at 1 site in United States.
Trial summary
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: 1. Read more about this study
- Who is it for?
- Ages 18 to 80 years
- Conditions the study is for
- Knee Osteoarthritis
- What is being tested?
- Euflexxa and Magnetic Resonance Imaging (MRI)
- Type of treatment
- Injection or infusion, Medical device
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 12 participants
- Where
- 1 siteUnited States
- Study dates
- Aug 2013to Jan 2017
- Phase
- Phase 4
- Are there results?
- Yes, posted in the registrySummary in the doctors' view
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 80 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- 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
Who cannot join
- 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
Show all 11Show fewer
- 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
Trial locations and contacts
1 site in 1 country.
United States1 site
UCSF - China Basin Imaging Center
San Francisco, California, 94107
About this study
Official title: 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.
- Conditions
- Knee Osteoarthritis
- Being tested
- Euflexxa, Magnetic Resonance Imaging (MRI)
- Keywords
- knee osteoarthritis (OA), hyaluronic acid injection
- Medical subject headings
- Osteoarthritis, Knee
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
EuflexxaDrug
Also called hyaluronic acid injection
Euflexxa will be injected weekly for 3 consecutive weeks on the knee joint.
Magnetic Resonance Imaging (MRI)Device
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).
| Study group | Role | What they receive |
|---|---|---|
| Euflexxa | Other | 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. Receives: Drug: Euflexxa; Device: Magnetic Resonance Imaging (MRI) |
What is being measured
The primary outcome is the main question the study is designed to answer.
To Identify Imaging Markers for Characterizing the Biochemical Profiles in Synovial Fluid and Cartilage in Knee OA After HA Injection
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.
Measured: 3 months
Secondary outcomes (1)
To Quantify Synovial Fluid Biochemical Changes Using High Field HRMAS NMR Spectroscopy
Measured: 3 months
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted11 Jul 2013 (estimated)
- Study startAug 2013
- Primary completionNov 2016
- Study completionJan 2017
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Posted resultsParticipant flow, outcome measures and adverse events reported by the sponsor.
- Other trials for Knee OsteoarthritisStudies of the same condition, open and under way.
- More trials run by University of California, San FranciscoThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 4
- Primary purpose
- Basic science
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Enrolment
- 12 participants (actual)
Sponsor and investigators
- Lead sponsor
- University of California, San Francisco
- Sponsor type
- University, hospital or other
- Collaborators
- Ferring Pharmaceuticals
- Responsible party
- Sponsor
- Investigators
- Xiaojuan Li, PhD, Principal investigator, University of California, San Francisco
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT01895959
- Sponsor's protocol ID
- Ferring-Euflexxa
- Status last verified
- Oct 2020
- First submitted
- 5 Jul 2013
- Last updated
- 18 Nov 2020
- Results posted
- Yes, on ClinicalTrials.gov
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- Yes
Study at a glance
From the registry record, last updated by the sponsor on 18 Nov 2020. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- 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
- ClinicalTrials.gov ID
- NCT01895959
- Acronym / sponsor ID
- Ferring-Euflexxa
- Conditions
- Knee Osteoarthritis
- Keywords
- knee osteoarthritis (OA), hyaluronic acid injection
- Phase
- Phase 4
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 12 participants (actual)
- Lead sponsor
- University of California, San FranciscoUniversity, hospital or other
- Collaborators
- Ferring Pharmaceuticals
- Study start
- Aug 2013
- Primary completion
- Nov 2016 (actual)
- Study completion
- Jan 2017 (actual)
- First posted
- 11 Jul 2013 (estimated)
- Results
- Posted 18 Nov 2020
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
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 design
- Primary purpose
- Basic science
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| Euflexxa | Other | Drug: Euflexxa, Device: Magnetic Resonance Imaging (MRI)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. |
Who may qualify
- Ages
- 18 to 80 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (7 listed)
- 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
Key exclusion criteria (11 listed)
- 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
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| EuflexxaAlso: hyaluronic acid injectionEuflexxa will be injected weekly for 3 consecutive weeks on the knee joint. | Drug | Euflexxa |
| Magnetic Resonance Imaging (MRI)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). | Device | Euflexxa |
Primary outcome
To Identify Imaging Markers for Characterizing the Biochemical Profiles in Synovial Fluid and Cartilage in Knee OA After HA Injection
Time frame: 3 months
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.
1 secondary outcome
To Quantify Synovial Fluid Biochemical Changes Using High Field HRMAS NMR Spectroscopy
Time frame: 3 months
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 18 Nov 2020.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Xiaojuan Li, PhD principal investigator
University of California, San Francisco
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 4 study testing Euflexxa and Magnetic Resonance Imaging (MRI) in people with Knee Osteoarthritis, run by University of California, San Francisco at 1 site in United States.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 7 inclusion and 11 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 18 Nov 2020. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
Yes. Results are posted in the registry (first posted 18 Nov 2020). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
To Identify Imaging Markers for Characterizing the Biochemical Profiles in Synovial Fluid and Cartilage in Knee OA After HA Injection (time frame: 3 months). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 18 Nov 2020; AzTrials last refreshed its copy on 8 Nov 2026.