Study on the Use of a Concentrated Growth Factor Preparation Kit for the Treatment of Knee Osteoarthritis

Not Applicable

• Conditions: Knee Osteoarthritis

• Registration Number: NCT06869200
• Lead Sponsor: Guangdong Hongzhi Biotechnology Co.

Brief Summary

The goal of this clinical trial is to evaluate the effectiveness and safety of an autologous platelet-rich concentrated growth factor (CGF) preparation kit for the treatment of knee osteoarthritis in patients diagnosed with this condition. The main question it aims to answer is:

Can the CGF preparation kit effectively improve symptoms and reduce pain in patients with knee osteoarthritis compared to a control intervention? Researchers will compare the CGF treatment group to a control group using platelet-rich plasma (PRP) to see if the CGF intervention results in greater improvements in knee function and pain relief.

Participants will:

Undergo three intra-articular injections of CGF or PRP into the knee joint at weekly intervals.

Complete assessments including the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) and Visual Analog Scale (VAS) for pain at specified intervals.

Be monitored for safety and potential adverse events throughout the study period.

Detailed Description

Not available

Study Timeline

• Status Verified: 2025-03
• Study Start: 2025-03
• Study First Submitted: 2025-03-05
• Study First Submitted QC: 2025-03-05
• Study First Posted: 2025-03-11
• Last Update Submitted: 2025-03-13
• Last Update Posted: 2025-03-19
• Primary Completion: 2025-12-31
• Study Completion: 2026-02

Recruitment & Eligibility

• Status: ENROLLING_BY_INVITATION
• Sex: All
• Target Recruitment: 104

Inclusion Criteria

• Age ≥ 18 years, with no gender restrictions;
• Patients diagnosed with knee osteoarthritis according to the "Chinese Guidelines for the Diagnosis and Treatment of Osteoarthritis (2024 Edition)" by the Chinese Osteoarthritis Diagnosis and Treatment Guidelines Expert Group;
• Radiographic evidence of knee osteoarthritis with Kellgren-Lawrence grading of II to IV;
• Visual Analog Scale (VAS) pain score ≥ 4 (moderate or higher pain) and WOMAC score ≥ 24;
• For participants with eligible bilateral knee osteoarthritis, the more severely affected knee will be treated, while the other knee will not be intervened during the study period. If the severity is equal on both sides, the left knee will be selected for intervention;
• The patient or their legal guardian is able to understand the purpose of the study and provide informed consent.

Exclusion Criteria

• Patients with a confirmed diagnosis of other inflammatory diseases of the knee joint, such as rheumatoid arthritis, psoriatic arthritis, or gouty arthritis; Patients with a confirmed diagnosis of bleeding disorders (e.g., allergic purpura, hemophilia, idiopathic thrombocytopenic purpura), hematologic malignancies (e.g., leukemia), or those with unconfirmed bleeding disorders but coagulation dysfunction (coagulation parameters PT, APTT, INR > 1.5 times the upper limit of normal);
• Patients who have undergone or are planned to undergo knee osteoarthritis surgery within the past 6 months or during the trial period;
• Patients with local infections at the injection site (e.g., septic arthritis, tuberculous arthritis, or local soft tissue infections) or severe systemic infections (e.g., sepsis);
• Patients with untreated malignant diseases such as malignancies, which may interfere with the safety and efficacy assessments of the study and affect the patient's participation in the study;
• Patients with severe hepatic or renal dysfunction [hepatic function indicators alanine aminotransferase (ALT), aspartate aminotransferase (AST) > 2 times the upper limit of normal; renal function indicators serum creatinine (Cr), blood urea nitrogen (BUN) > 2 times the upper limit of normal];
• Patients with hemoglobin < 10 g/dL or platelet count < 125 × 10^9/L;
• Patients who have used any Chinese or Western medications or therapies for the treatment of knee osteoarthritis within 1 week prior to randomization;
• Patients who have received intra-articular injections or related drug therapies within the past 3 months;
• Women who are planning a pregnancy, breastfeeding, or pregnant during the entire clinical study period;
• Patients who have participated in other interventional drug or medical device clinical trials within 1 month prior to enrollment;
• Other situations where the investigator deems the patient unsuitable for participation in this study.

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Primary Outcome Measures

Name	Time	Method
The Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC)	One month after the first injection	The Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) is used to assess pain, stiffness, and physical function in patients with hip and knee osteoarthritis. The score ranges from 0 to 96 (using a 5-point Likert scale) or 0 to 240 (using a visual analog scale \[VAS\]), with lower scores indicating better outcomes.

Secondary Outcome Measures

Name	Time	Method
The Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC)	2 and 3 month after the first injection	The Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) is used to assess pain, stiffness, and physical function in patients with hip and knee osteoarthritis. The score ranges from 0 to 96 (using a 5-point Likert scale) or 0 to 240 (using a visual analog scale \[VAS\]), with lower scores indicating better outcomes.
The Visual Analog Scale (VAS)	1，2，and 3 month after the first injection	The Visual Analog Scale (VAS) is used to measure the intensity of pain experienced by patients. The VAS score ranges from 0 to 10, with lower scores indicating better outcomes (i.e., less pain).

Trial Locations

Locations (3)

Nanfang Hospital,; 🇨🇳 Guangzhou, Guangdong, China

Shantou Central Hospital; 🇨🇳 Shantou, Guangdong, China

The Third Affiliated Hospital,Sun Yat-Sen University.; 🇨🇳 Guangdong, Guangzhou, China