Comparing Treatment of Knee Osteoarthritis With Triamcinolone Injections Using 40mg With Landmark Guidance and 20mg With Ultrasound Guidance
PRECISION-Knee
Non-Inferiority Study Comparing Treatment of Primary Knee Osteoarthritis With Intra-Articular Triamcinolone Injections Using 40mg With Landmark Guidance and 20mg With Ultrasound Guidance: The PRECISION-Knee Trial (PRospective Evaluation of the Clinical Impact of Steroid Injection Options iN Knee Osteoarthritis)
1 other identifier
interventional
140
1 country
4
Brief Summary
The purpose of this study is to determine whether a lower dose of corticosteroid injection with ultrasound-guidance for the treatment of knee osteoarthritis can be as effective as a higher dose that is landmark-guided. With landmark-guided dosing, it may be reasonable to use a higher amount of corticosteroid in order to ensure a sufficient amount of the medication is administered, however these injections carry the risk of side effects. Alternatively, with the use of ultrasound, it may be reasonable to use less corticosteroid, possibly decreasing the risk of side effects and increasing patient satisfaction.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for phase_4
Started Dec 2025
Shorter than P25 for phase_4
4 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
December 12, 2025
CompletedFirst Submitted
Initial submission to the registry
April 9, 2026
CompletedFirst Posted
Study publicly available on registry
April 22, 2026
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 8, 2026
ExpectedStudy Completion
Last participant's last visit for all outcomes
December 8, 2026
April 22, 2026
April 1, 2026
12 months
April 9, 2026
April 15, 2026
Conditions
Outcome Measures
Primary Outcomes (2)
Western Ontario and McMaster Universities Index
Scores are on a scale of 0 through 96, with a higher score indicating a worse function level.
From enrollment to 3 months
Pain Visual Analog Scale
scale of 0 through 10, with 10 being the highest pain level.
From enrollment to 3 months
Secondary Outcomes (1)
Immediate change in pVAS (Pain Visual Analog Scale)
From enrollment to immediately after intervention
Other Outcomes (2)
relationship of Kellgren-Lawrence (KL) score to primary and secondary outcomes
From enrollment to 3 months
Patients' ratings of the physician's confidence obtained through a multiple choice question.
From enrollment to immediately after the intervention
Study Arms (2)
40mg landmark-guided triamcinolone knee joint injection
ACTIVE COMPARATOR20mg ultrasound-guided triamcinolone knee injection
EXPERIMENTALInterventions
3mL lidocaine (without epinephrine) 1% solution combined with 1mL triamcinolone acetonide injectable solution, USP (40mg per mL)
3mL lidocaine (without epinephrine) 1% solution combined with 0.5mL triamcinolone acetonide injectable solution, USP (40mg per mL)
Eligibility Criteria
You may qualify if:
- Subjects who have already been evaluated within at least one of the 4 study clinics with any of the 3 providers who will be administering the treatment
- Males or females age 50 and older
- Already had completion of imaging of the affected knee(s) via radiography and/or MRI
- Imaging demonstrates osteoarthritis of any severity
- Diagnosis of primary osteoarthritis of one or both knees
- One or more symptoms associated with the osteoarthritis of at least one knee
- Patients able to provide informed consent in English and/or Spanish
You may not qualify if:
- Skin infection at or near area of injection site
- Recent fracture of the same knee joint within past 6 months
- Uncontrolled bleeding disorder
- Intra-articular corticosteroid injection within past 3 months
- Intra-articular HA injection within the past 3 months
- Intra-articular PRP injection within the past 3 months
- Presence of prosthetic knee joint in symptomatic knee
- Inability to report symptoms due to cognitive impairment
- Complete inability to ambulate, even with assistive device
- Any person who is pregnant or less than 1 year post-menopause
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Sosi Dzhugarianlead
Study Sites (4)
Community Memorial Health Center - North Brent Street, 168 North Brent Street, Suite 302, Orthopedic Surgery Clinic, Ventura, California 93003
Ventura, California, 93003, United States
Community Memorial Health Center - North Brent Street, 168 North Brent Street, Suite 302, Sports Medicine Clinic, Ventura, California 93003
Ventura, California, 93003, United States
Community Memorial Health Center - Pirie Road, 117 Pirie Road, Orthopedic Surgery Clinic, Ojai, California 93023
Ventura, California, 93003, United States
Community Memorial Health Center, 1320 Maricopa Highway, Ojai, California 93023
Ventura, California, 93003, United States
Study Officials
- PRINCIPAL INVESTIGATOR
Griffin Elbert, DO
Community Memorial Healthcare
Study Design
- Study Type
- interventional
- Phase
- phase 4
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR INVESTIGATOR
- PI Title
- Internal Medicine Physician
Study Record Dates
First Submitted
April 9, 2026
First Posted
April 22, 2026
Study Start
December 12, 2025
Primary Completion (Estimated)
December 8, 2026
Study Completion (Estimated)
December 8, 2026
Last Updated
April 22, 2026
Record last verified: 2026-04