A Study to Determine the Safety and Efficacy of TG-C in Subjects With Symptomatic Early Hip Osteoarthritis

Official title

A Randomized, Double-Blind, Placebo-Controlled, Phase 2 Study to Determine the Efficacy, Safety, and Dosing of TG-C in Adult Subjects With Symptomatic Early Hip Osteoarthritis

Overview

A Randomized, Double-Blind, Placebo-Controlled, Phase 2 Study to Determine the Efficacy, Safety, and Dosing of TG-C in Adult Subjects with Symptomatic Early Hip Osteoarthritis. TG-C will be administered to the target hip by a single ultrasound (or fluoroscopy)-guided, intra-articular injection with image capture showing correct injection of study drug into the femoroacetabular joint. Patients will be followed for 12 months for safety and efficacy.

Detailed description

This protocol is designed to assess the safety and efficacy of TG-C in treating symptoms of osteoarthritis of the hip and determining disease modifying effects of TG-C. TG-C will be compared to normal saline as a control. Safety will be evaluated by observation of the injection site for irritation or other effects, the incidence and severity of adverse events, and changes in physical examination findings, radiographic criteria, and laboratory tests. Patients will be followed for 12 months for both safety and efficacy.

Interventions

• Biological TG-C
  2 mL injection of non-transduced human chondrocytes and irradiated transduced human GP2-293 cells expressing TGF-B1.
• Biological Placebo Control
  2 mL normal saline injection

Primary outcome measures

• Change in Hip Pain as Assessed by VAS [Time frame: Baseline to Month 12]

Secondary outcome measures (5)

• Hip Disability and Osteoarthritis Outcome Score (HOOS) [Time frame: Baseline to Month 12]
• Timed Up and Go Test (TUG) [Time frame: Baseline to Months 1, 3, 6, 9, and 12]
• UCLA Activity Score [Time frame: Baseline to Months 1, 3, 6, 9, and 12]
• Joint Space Width (JSW) on standing X-ray [Time frame: Baseline to Month 12]
• WOMAC® (Western Ontario and McMaster Universities Osteoarthritis Index) total score [Time frame: Baseline to Month 12]

Eligibility criteria

Inclusion criteria

• Aged 18 to 80 years old
• The subject has a diagnosis of Grade ≤2 primary OA of the target hip
• Pain ≥ 40 on VAS scale
• The subject has groin pain that is elicited by hip rotation on physical examination
• No history of significant organ system disorders.
• Body mass index (BMI) <40 kg/m2
• Systolic blood pressure of 100 to 160 mmHg and diastolic blood pressure of 60 to 90 mmHg.
• Using birth control
• Written informed consent

Exclusion criteria

• The subject exhibits severe symptoms in the target hip that result in difficulty or an inability to walk.
• The subject has severe hip OA ipsilateral to the target hip.
• Previous cartilage transplantation procedure to the injured cartilage surface.
• Major injury to the target hip within 12 months of screening.
• Active dermal ulcer or infection in the proximity of the target hip within 1 month before screening.
• The subject has had surgery on the target hip within the last 6 months.
• Total hip replacement surgery or other surgery on the target hip in the next 12 months.
• MRI indicates bone marrow infiltration, fracture, osteonecrosis/bone infarct, osteochondritis dissecans, tumor, moderate to severe dysplasia, avascular necrosis, post-traumatic arthritis, transient osteoporosis, slipped-cap femoral epiphysis, juvenile idiopathic arthritis, or axial juvenile spondyloarthritis.
• Hip conditions including but not limited to any autoimmune or infectious cause for arthritis; metabolic joint disease; neuropathic disorders, groin pain from non-orthopedic sources, or tumors, congestive heart failure, or chronic kidney disease.
• Uncontrolled diabetes based on a hemoglobin A1c (HbA1c) value >8% at the screening Visit.
• Increased risk for post-procedure bleeding or post-procedure infection.
• Ongoing infectious disease, including, but not limited to, HIV, hepatitis C, or current or prior hepatitis B.
• Cognitive impairment that would limit his/her ability to provide informed consent or to complete assessments and questionnaires.
• 1 year history of drug or alcohol abuse.
• Contraindication to or cannot undergo MRI.
• Active malignancy within the last 5 years.
• Pregnant or is lactating.
• Taken steroidal or NSAIDs within 14 days before the Baseline Visit
• Using topical analgesics on the target hip
• Receiving chronic narcotic treatment at screening.
• Received any injection to the target hip within the 3 months before the Baseline Visit.
• Taking antiplatelet or anticoagulants.
• Participated in an investigational study within 13 weeks before the Screening Visit or in the next 25 months.
• Unable to comply with the requisite study follow-up and all of the follow-up office visits.

Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.

Healthy volunteers: No

Study design

Allocation

Randomized

Model

Parallel assignment

Masking

Quadruple blind

Primary purpose

Treatment

Study locations

Center list to be confirmed — check the primary protocol.

Identifiers

NCT: NCT05276011 · TGC-OAH-201

Primary sources (government registries)

• ClinicalTrials.gov (US NIH)

View this study on ClinicalTrials.gov ↗