A Study to Assess Safety and Tolerability of PCRX-201 in Subjects With Painful Osteoarthritis of the Knee
Eligible age
45–80 yrs
Accepts
All genders
Locations
18 states
Healthy volunteers
No
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About this study
The goal of this clinical trial is to learn if a single knee injection of different doses (Dose A and Dose B) of an investigation product PCRX-201, following steroid pretreatment, is safe and tolerable in male of female patients 45 to 80 years old with osteoarthritis of the knee. It will also learn how the body reacts to the PCRX-201 injection and how effective the treatment is. Researchers will compare Dose A and Dose B of PCRX-201 versus placebo from Week 1 through Week 52 to assess adverse events. Researchers will also explore how PCRX-201 may impact knee pain and joint function over time. Participants will be asked to * Visit the clinic for pretreatment and drug administration * Visit the clinic for checkups and tests: 1. Screening through Week 52: intially weekly, bi-weekly, later monthly 2. Week 53 through Week 260 (Year 5): 8 visits throughout the period
Sponsor: Pacira Pharmaceuticals, Inc
You may qualify if…
- ✓ Subjects must be willing and able to comply with the study procedures and visit schedule and able to follow verbal and written instructions.
- ✓ Subjects must be male or female and 45 to 80 years old, inclusive, at Screening.
- ✓ Subjects must exhibit symptoms associated with osteoarthritis of the index knee for ≥12 months before Screening (subject self-reporting is acceptable).
- ✓ Subjects must have index knee pain for \>15 days over the last month before Screening (subject self-reporting is acceptable).
- ✓ Subjects must have received 2 or more failed 2 or more therapies: Restricted physical activity as per Osteoarthritis Research Society International (OARSI) core level recommendation, ie, "structured land-based exercise" (this may include physical therapy), and failure of an additional type of conservative therapy for OA of the index knee, eg, nonselective NSAIDs or COX-2 inhibitors, in the past 12 months.
- ✓ Subjects must have a body mass index (BMI) ≤40 kg/m2 at Screening.
- ✓ Subjects must have an index knee examination indicating the index knee and the intended injection site area are free of any signs of local or joint infection at Baseline.
- ✓ Subjects must have an index knee Average Daily Knee Pain (NRS) between ≥5.0 and ≤9.0 at Screening and Baseline.
You may not qualify if…
- ✕ Subjects have any current or prior diagnosis of autoimmune connective tissue disorders, secondary OA conditions, benign synovial tumors, gout/pseudogout, reactive arthritis, RA, psoriatic arthritis, ankylosing spondylitis, or arthritis associated with inflammatory bowel disease.
- ✕ Subjects have any active systemic or local infection, including infection of the index knee
- ✕ Subjects are unable to undergo MRI with contrast MRI
- ✕ Subjects with X-ray or MRI exclusionary events
- ✕ Subjects have an unstable index knee joint (eg, torn anterior cruciate ligament) within 12 months of Screening
- ✕ Subjects have used any approved or investigational IA drug/biologic in index knee within 6 months of Screening (eg, hyaluronic acid, platelet rich plasma, stem cells, prolotherapy, and amniotic fluid injection)
- ✕ Subjects are receiving or have received any gene therapy treatment (eg, IL-1Ra) in the past 3 years
- ✕ Subjects have used IA steroids ≤3 months before screening
Where it's recruiting
Birmingham
Phoenix
Beverly Hills · Chula Vista · Covina · Huntington Beach …
Daytona Beach · Oldsmar · Plantation · Sarasota …
Atlanta
Chicago
Lake Charles · New Orleans
Baltimore
Rochester Hills
Lincoln
Las Vegas
Brooklyn · New York
Source: ClinicalTrials.gov · NCT06884865 · last updated 2026-08-07