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The efficacy and safety of a high- concentration hybrid hyaluronic acid in patients with knee osteoarthritis: an open-label study

An open-label study to evaluate the efficacy and safety of a high-concentration hybrid hyaluronic acid, administered as a single dose and, in a secondary population, with repeated administration, in patients with knee osteoarthritis

Status
Active, not recruiting
Phases
Phase 4
Study type
Interventional
Source
ISRCTN
Registry ID
ISRCTN12974924
Enrollment
32
Registered
2026-01-20
Start date
2021-12-01
Completion date
Unknown
Last updated
2026-02-02

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Kellgren–Lawrence grade 2–3 knee Osteoarthrosis Musculoskeletal Diseases

Interventions

Single-dose (Population A) or repeated-dose (Population B) intra-articular injections of Sinovial® HL 90 (4.5%). Population A: single injection of Sinovial® HL 90. The follow-up period lasted 6 month

Sponsors

IBSA Farmaceutici (Italy)
Lead Sponsor

Eligibility

Sex/Gender
All
Age
40 Years to 80 Years

Inclusion criteria

Inclusion criteria: 1. Diagnosis of knee OA (medial, lateral, patellofemoral, bicompartmental, or tricompartmental) 2. Kellgren and Lawrence grade 2 or 3 on radiographic examination (scale 0–4) 3. Age range of 40–80 years 4. Willingness to participate in the study, demonstrated by signing an informed consent form.

Exclusion criteria

Exclusion criteria: 1. Clinically significant abnormal laboratory values indicating disease 2. Confirmed allergy or suspected hypersensitivity to the investigated medical device and/or its excipients 3. A history of anaphylaxis due to drugs, dietary supplements, or any allergic reactions deemed by the investigator to potentially influence the study outcome 4. A significant medical history of renal, hepatic, gastrointestinal, cardiovascular, respiratory, dermatological, hematological, endocrine, or neurological diseases that could interfere with the study's purposes 5. Use of herbal remedies and dietary supplements within 2 weeks prior to the study initiation 6. Prior treatment with corticosteroids, thyroid hormones, antibiotics, or antiepileptics 7. Any clinical condition deemed incompatible with participation by the investigator 8. Alcohol abuse 9. Women who were pregnant or breastfeeding 10. Patients using other intra-articular HA-based medical devices, non-steroidal anti-inflammatory drugs, or corticosteroid painkillers for their knee

Design outcomes

Primary

MeasureTime frame
Functional limitation and joint stiffness reduction, measured by the IKDC questionnaire, at 6 month

Secondary

MeasureTime frame
1. Functional limitation and joint stiffness are measured using the International Knee Documentation Committee (IKDC) questionnaire at baseline and 6 months in Population B 2. Pain is measured using a visual analog scale (VAS) at baseline, 3 months, and 6 months in both populations 3. Functional limitation is measured using the Knee Injury and Osteoarthritis Outcome Score (KOOS) questionnaire at baseline, 3 months, and 6 months in both populations 4. Quality of life is measured using the 12-item Short Form Health Survey – Physical Component Summary (SF-12 PCS) score at baseline, 3 months, and 6 months in both populations

Countries

Italy

Contacts

Public ContactAndrea Autelitano
andrea.autelitano@ibsa.it+39 3450908561

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Feb 7, 2026