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Intra-articular and extra-articular Platelet Rich Plasma injections for knee osteoarthritis: a pilot single arm feasibility study

Intra-articular and extra-articular Platelet Rich Plasma injections for knee osteoarthritis: a pilot single arm feasibility study

Status
Active, not recruiting
Phases
Phase 2
Study type
Observational
Source
ChiCTR
Registry ID
ChiCTR-OIC-17010625
Enrollment
Unknown
Registered
2017-02-02
Start date
2017-02-16
Completion date
Unknown
Last updated
2017-12-11

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

Conditions

knee osteoarthritis

Interventions

Case series:Intra-articular and extra-articular Platelet Rich Plasma injections 6 ml PRP plus 1 ml of 1% xylocaine (total 7 ml), once, single injection

Sponsors

The Jockey Club School of Public Health and Primary Care, The Chinese University of Hong Kong
Lead Sponsor

Eligibility

Sex/Gender
All
Age
40 Years to 70 Years

Inclusion criteria

Inclusion criteria: 1) Aged 45 to 75 years old; 2) Self-reported symptoms consistent with KOA per American College of Rheumatology guidelines; 3) Have experienced moderate to severe knee pain for at least 3 months, defined as a score of 3 or more (0-6 ordinal response scale) on the question "What is the average level of your left/right knee pain?" 4) Failed 6 months of usual care; 5) Clinical evidence of KOA according to the American College of Rheumatology guidelines; 6) Radiographic evidence of KOA with Kellgren Lawerance (KL).

Exclusion criteria

Exclusion criteria: 1) Pregnancy; 2) On anticoagulation, immunosuppressive or daily opioid therapy; 3) History of collagen tissue or other autoimmune disorders; 4) Hematological diseases; 5) Severe cardiovascular diseases; 6) Prior or planned total knee replacement of the affected knee; 7) Allergy or intolerance to acetaminophen or xylocaine; 8) Body mass index (BMI) = 35 kg/m2; 9) Co-morbidity severe enough to prevent reliable or safe study participation; 10) Subjects who cannot read or write in the Chinese Consent form; 11) Interim knee joint infectious arthritis or trauma; 12) Hemoglobin level < 11g/dL; 13) Platelet concentration < 150,000/mm3; 14) Clinical examination suggesting that the patient is not appropriate due to comorbid knee or other conditions.

Design outcomes

Primary

MeasureTime frame
Feasibility measurements;Safety of the intervention;

Secondary

MeasureTime frame
Objective functional outcomes;Self-reported knee-specific pain, function and stiffness;Health-related quality of life;Treatment satisfaction;Analgesics consumption;Acute and Constant Knee Pain Severity;

Countries

China

Contacts

Public ContactRegina Wing Shan SIT

Division of Family Medicine and Primary Health Care, The Jockey Club School of Public Health and Primary Care, The Chinese University of Hong Kong

reginasit@cuhk.edu.hk+852 2503 9053

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026