ZILRETTA in Subjects With Shoulder Osteoarthritis
A Study to Evaluate the Efficacy and Safety of ZILRETTA in Subjects With Glenohumeral Osteoarthritis
1 other identifier
interventional
150
1 country
32
Brief Summary
Primary Objective: To assess the efficacy of ZILRETTA on pain following an intra-articular (IA) injection in subjects with glenohumeral osteoarthritis (OA) relative to normal saline placebo Secondary Objective:
- To assess the efficacy of ZILRETTA on pain following an IA injection in subjects with glenohumeral OA relative to triamcinolone acetonide injectable suspension, and normal saline placebo
- To assess the safety of ZILRETTA in subjects with glenohumeral OA relative to normal saline placebo
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for phase_3
Started Feb 2024
32 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
February 5, 2024
CompletedFirst Submitted
Initial submission to the registry
February 13, 2024
CompletedFirst Posted
Study publicly available on registry
February 21, 2024
CompletedPrimary Completion
Last participant's last visit for primary outcome
August 1, 2026
ExpectedStudy Completion
Last participant's last visit for all outcomes
August 1, 2026
November 3, 2025
October 1, 2025
2.5 years
February 13, 2024
October 30, 2025
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Change from Baseline on the Worst Daily Pain (24-hr) mean score (0-10 Numeric Rating Scale (NRS); 0 = no pain, 10 = worst possible pain) at Week 12 for ZILRETTA relative to placebo
Week 12
Secondary Outcomes (7)
Change from Baseline on the Worst Daily Pain (24-hr) mean score (0-10 Numeric Rating Scale (NRS); 0 = no pain, 10 = worst possible pain) at Week 12 for ZILRETTA relative to TCA-IR
Week 12
Change from Baseline on the Worst Daily Pain (24-hr) mean score (0-10 Numeric Rating Scale (NRS); 0 = no pain, 10 = worst possible pain) at Week 18 for ZILRETTA relative to TCA-IR
Week 18
Change from Baseline on the Worst Daily Pain (24-hr) mean score (0-10 Numeric Rating Scale (NRS); 0 = no pain, 10 = worst possible pain) at Week 2 for ZILRETTA relative to placebo
Week 2
Change from Baseline on the Worst Daily Pain (24-hr) mean score (0-10 Numeric Rating Scale (NRS); 0 = no pain, 10 = worst possible pain) at Week 4 for ZILRETTA relative to placebo
Week 4
Change from Baseline on the Worst Daily Pain (24-hr) mean score (0-10 Numeric Rating Scale (NRS); 0 = no pain, 10 = worst possible pain) at Week 8 for ZILRETTA relative to placebo
Week 8
- +2 more secondary outcomes
Study Arms (2)
ZILRETTA
EXPERIMENTAL100 subjects will receive 32 mg ZILRETTA
Placebo
PLACEBO COMPARATOR50 subjects will receive normal saline placebo
Interventions
Eligibility Criteria
You may qualify if:
- To be included in the trial, participants must fulfill the following criteria:
- Written informed consent has been obtained prior to initiating any study-specific procedures.
- Willingness and ability to comply with the study procedures and visit schedules and ability to follow verbal and written instructions, including eDiary questionnaire completion requirements.
- Participants 50 to 80 years of age, inclusive, on the day of consent.
- Body mass index (BMI) does not prohibit proper identification of bony landmarks and/or otherwise prohibit the ability to properly inject into the shoulder joint per Principal Investigator's (PI's) judgment.
- Participants with shoulder pain and glenohumeral arthritis with or without rotator cuff pathology (eg, rotator cuff inflammation, partial rotator cuff tear \[non-to-mild superior subluxation of the humeral head on X-ray\] may be included). Participants with positive Neer and Hawkins-Kennedy tests on index shoulder exam should be excluded. Participants who have complete or irreparable rotator cuff tear should not be included.
- Grade 1, 2, or 3 OA in the index glenohumeral joint based on the Samilson-Prieto classification system as confirmed by X-ray (axillary view and true anterior-posterior view) taken at, or within 6 months of, the Screening Visit and read by the central reader.
- Average daily mean pain score ≥4.0 and ≤9.0 in index shoulder (0-10 numeric rating scale \[NRS\]) using the average daily ratings for at least 4 out of the 7 days prior to Baseline/Day 1.
- Average Shoulder Pain and Disability Index (SPADI) pain score ≥4.0 and ≤9.0 in index shoulder during the Screening and Pretreatment Phase (average score) as calculated and reported in the electronic Clinical Outcomes Assessment (eCOA).
- Willingness to abstain from use of protocol-specified restricted medications and therapies during the study.
- Sexually active males or females of childbearing potential must agree to use a highly effective method of contraception throughout the duration of the study. Females of childbearing potential are defined as females who are not surgically sterile or postmenopausal (defined as 12 consecutive months with no menses without an alternative medical cause) as documented in medical history. Highly effective methods of contraception include abstinence; oral, injected, or implanted hormonal methods of contraception; intrauterine device or intrauterine system; condom or occlusive cap (diaphragm or cervical/vault caps) with spermicidal foam/gel/film/cream/suppository; or monogamous intercourse with a partner who is surgically sterile (post-vasectomy, -hysterectomy, or -tubal ligation).
You may not qualify if:
- Participants fulfilling at least 1 of the following criteria may not be included in the study:
- Disease-Related Criteria
- Participants who cannot washout prohibited medications (eg, opioids, other analgesics, and tetrahydrocannabinol (THC)- and cannabidiol (CBD)-containing products) or restricted medications.
- Has symptomatic arthritis in other joints of the index shoulder (eg, acromioclavicular joint, sternoclavicular joint, or pain in the scapulothoracic region), which is the primary source of pain in the opinion of the Investigator.
- Has clinical symptomatic chronic bilateral shoulder pain (any condition causing pain in the non-index shoulder).
- Has a subchondral bone insufficiency fracture or humeral head necrosis/collapse (including bone infarct) in the index shoulder based on X-ray used for study qualification.
- Has a prior ipsilateral proximal humerus fracture or scapula fracture to the index shoulder within 2 years of Screening Visit.
- Has current diagnosis of adhesive capsulitis ("frozen shoulder") in the index shoulder or previous diagnosis within 1 year of the Screening Visit and is still not resolved.
- Has a previous substantial shoulder injury or trauma (eg, glenohumeral dislocation or clavicle fracture) in the index shoulder which resulted in functional limitation within 3 months prior to the Screening Visit.
- Has had prior surgery on the index shoulder (less than 3 years), either open or arthroscopic. Should not have any retained hardware.
- Has an index shoulder with major dysplasia or congenital abnormality, osteochondritis dissecans, acromegaly, ochronosis, hemochromatosis, Wilson's disease, primary osteochondromatosis, chondrolysis from a pain pump, or a history of avascular necrosis with secondary OA or any other anatomic variation or disease that, in the opinion of the Investigator, could interfere with either the injection procedure or the study outcome.
- Has current or history of infection (eg, osteomyelitis) in the index shoulder or current skin infection at injection site.
- Has any concurrent chronic joint, muscle, or nerve pain condition within 1 month prior to the Screening Visit (participant self-report acceptable), including but not limited to, cervical spine pain or conditions causing radicular pain or peripheral nerve injury/entrapment (eg, brachial plexus injury or suprascapular nerve entrapment); diabetic neuropathy of upper extremities; post-herpetic neuralgia; post-stroke pain; or fibromyalgia that may affect sensation of the index shoulder.
- painDETECT Questionnaire (PD-Q) score \>18 during Screening Visit.
- History or current evidence of reactive arthritis, rheumatoid arthritis, psoriatic arthritis, ankylosing spondylitis, or arthritis associated with inflammatory bowel disease, systemic lupus erythematosus, or calcium pyrophosphate dihydrate crystal deposition (CPPD), gout, or other autoimmune diseases.
- +27 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (32)
Alabama Orthopaedic Center- Research
Vestavia Hills, Alabama, 35243, United States
Onyx Clinical Research
Surprise, Arizona, 85374, United States
Tucson Orthopaedic Institute (TOI) - East Office
Tucson, Arizona, 85712, United States
Horizon Clinical Research
La Mesa, California, 91942, United States
Napa Pain Institute
Napa, California, 94558, United States
Stanford University - Sports Medicine Clinic
Redwood City, California, 94063, United States
International Spine, Pain & Performance Center
Washington D.C., District of Columbia, 20006, United States
Orthopedic Center of Palm Beach City
Atlantis, Florida, 33462, United States
Baptist Health Orthopedic Care - Miami Gardens
Maimi, Florida, 33056, United States
Infinite Clinical Research
Miami, Florida, 33133, United States
Gulfcoast Research Institute
Sarasota, Florida, 34232-6028, United States
Clinical Research of West Florida
Tampa, Florida, 33606, United States
Hospital for Special Services
West Palm Beach, Florida, 33401, United States
Injury Care Research
Boise, Idaho, 83713, United States
Kansas City Bone & Joint Clinic - Overland Park
Overland Park, Kansas, 66211, United States
Ochsner Sports Medicine Institute
New Orleans, Louisiana, 70121, United States
New England Baptist Hospital
Boston, Massachusetts, 02120-2847, United States
Oakland Medical Center
Troy, Michigan, 48085-5524, United States
Sundance Clinical Research
St Louis, Missouri, 63141, United States
New York-Presbyterian Queens
Flushing, New York, 11355-5045, United States
West Clinical Research
Morehead City, North Carolina, 28557, United States
University of Cincinnati
Cincinnati, Ohio, 45267-0212, United States
Ohio State University
Columbus, Ohio, 43210, United States
University Orthopedics Center
Altoona, Pennsylvania, 16602, United States
Altoona Arthritis & Osteoporosis Center - Altoona Center for Clinical Research
Duncansville, Pennsylvania, 16653, United States
University Orthopedics Center (UOC) - State College
State College, Pennsylvania, 16801, United States
Medical University Health - West Ashley Medical Pavilion
Charleston, South Carolina, 29407, United States
Texas Orthopedic Specialists, PLLC
Bedford, Texas, 76021, United States
First Surgical Hospital
Bellaire, Texas, 77401, United States
El Paso Clinical Trials, LLC
El Paso, Texas, 79935-3013, United States
Physicians Research Options
Draper, Utah, 84020, United States
Spectrum Medical
Danville, Virginia, 24541, United States
MeSH Terms
Interventions
Intervention Hierarchy (Ancestors)
Study Officials
- STUDY DIRECTOR
Nino Joy, MD
Pacira Pharmaceuticals, Inc
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- phase 3
- Allocation
- RANDOMIZED
- Masking
- SINGLE
- Who Masked
- INVESTIGATOR
- Masking Details
- Only unblinded team (pharmacist, unblinded coordinator, drug administrator) will know the treatment assignment. A site-specific blinding plan will be developed to ensure blinding. Unblinded team will only interact with the subject at treatment and will not have any blinded roles on the study (only exception- informed consent). The subject and the assessor responsible for assessments/safety monitoring will be blinded. Site and Sponsor personnel/representatives will be blinded, with the following Sponsor/representative exceptions: unblinded monitors for performing drug accountability, unblinded clinical manager for reviewing unblinded monitoring visit reports and escalation of site unblinded issues, inventory manager for addressing product-related issues, and regulatory personnel for safety reporting. Information regarding treatment assignments will be kept securely at Sponsor.
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
February 13, 2024
First Posted
February 21, 2024
Study Start
February 5, 2024
Primary Completion (Estimated)
August 1, 2026
Study Completion (Estimated)
August 1, 2026
Last Updated
November 3, 2025
Record last verified: 2025-10