Comparing three management methods for knee osteoarthritis
| ISRCTN | ISRCTN72048925 |
|---|---|
| DOI | https://doi.org/10.1186/ISRCTN72048925 |
| ClinicalTrials.gov (NCT) | Nil known |
| Clinical Trials Information System (CTIS) | Nil known |
| Protocol serial number | DSREC-12/2015-2016 |
| Sponsor | Dubai Health Authority |
| Funder | Investigator initiated and funded |
- Submission date
- 08/04/2019
- Registration date
- 22/04/2019
- Last edited
- 10/12/2019
- Recruitment status
- No longer recruiting
- Overall study status
- Completed
- Condition category
- Musculoskeletal Diseases
Plain English summary of protocol
Background and study aims
Osteoarthritis (OA) is the commonest joint disorder that can cause pain, disability and affects the quality of life. There is conflicting evidence regarding the best management method for OA. The aim of this study is to assess the effect of PRP and hyaluronic acid intra articular knee injections on pain, function and quality of life, and to compare between them and a conventional physiotherapy program.
Who can participate?
Patients with chronic (at least 4 months) knee pain and x-ray evidence of OA
What does the study involve?
Participants are randomly allocated to one of the three groups. Detailed physical examinations are performed and an evaluation form is completed. Demographic features including age, occupation and level of education are recorded for each participant. Routine lab tests and blood tests are performed. Group I receive two PRP knee injections with a one-month interval. Group II receive four weekly knee injections of sodium hyaluronate. Group III receive 12 one-hour sessions (three per week) of a specialized exercise program supervised by a physiotherapist. All participants receive a home rehabilitation program and educational leaflet. All participants are evaluated initially, then after 2 and 6 months after treatment completion.
What are the possible benefits and risks of participating?
Participation may benefit future patients by showing the effectiveness of these treatments. Participation in this study is not expected to cause any risks greater than those encountered in everyday life, as these treatments are already currently used in daily practice for treating OA.
Where is the study run from?
Dubai and Rashid Hospitals (United Arab Emirates)
When is the study starting and how long is it expected to run for?
February 2016 to December 2018
Who is funding the study?
Investigator initiated and funded
Who is the main contact?
1. Dr Sahar Khalil
sskhalil@dha.gov.ae
2. Dr Mohamed Abdulla
mmabdulla@dha.gov.ae
Contact information
Scientific
Dubai Hospital- Diera- Al-Baraha area
Dubai
7272
United Arab Emirates
 ORCID ID |
0000-0002-6615-3400 |
|---|---|
| Phone | +971 (0)557557453 |
| sskhalil@dha.gov.ae |
Scientific
Dubai Hospital- Diera- Al-Baraha area
Dubai
7272
United Arab Emirates
| Phone | +971 (0)506584352 |
|---|---|
| mmabdulla@dha.gov.ae |
Study information
| Primary study design | Interventional |
|---|---|
| Study design | Interventional single-blinded computer-generated random allocation multi-center study |
| Secondary study design | Randomised parallel trial |
| Study type | Participant information sheet |
| Scientific title | Platelet rich plasma versus hyaluronic acid injections and conventional physical therapy in management of knee osteoarthritis |
| Study objectives | Platelet rich plasma and hyaluronic acid injections are more effective than conventional physical therapy in management of knee osteoarthritis |
| Ethics approval(s) | Approved 02/03/2016, Dubai scientific research ethical committee (DSREC) (Rashid Medical Library, Medical Education & Research Department, Dubai, UAE, P.O. 4545; Tel: +971 (0)4 219 1961; Email: DSREC@dha.gov.ae), ref: DSREC-12/2015-2016 |
| Health condition(s) or problem(s) studied | Chronic knee pain associated with imaging findings of mild to moderate degenerative changes in the knee joint |
| Intervention | Randomization was performed using a computer-generated program. The enrolled patients were randomly distributed into three groups: Group I included 20 patients who received two PRP intraarticular knee injections under ultrasound guidance. PRP was prepared using (Dr. PRP Kit [Rmedica, Seoul, Republic of Korea]) by the following method: 18 millilitres of the patient’s blood was collected and mixed with 2 mL ethylene di-amine tetra-acetic acid disodium anticoagulant (EDTA; Wako Pure Chemical Industries, Ltd.). Then, it was placed in a centrifuge first spin at a force of 3,000 RPM for 3 minutes to separate erythrocytes from the plasma. After that, the obtained plasma was centrifuged again for a second spin at a force of 3,200 RPM for another 6 minutes to separate the platelet poor plasma (PPP) from the platelet-rich plasma (PRP). PRP injections were given with a one-month interval. Group II included 20 patients who received four weekly intraarticular knee injections of sodium hyaluronate 20 mg/2 mL (Hyalgan®, Fidia S.p.A, Abano Terme, Italy) under ultrasound guidance. Hyalgan is a viscous solution consisting of a high molecular weight (500,000–730,000 Da) fraction of purified natural sodium hyaluronate in buffered physiological sodium chloride, having a PH of 6.8–7.5. The sodium hyaluronate is extracted from rooster combs. Group III included 20 patients who received 12 sessions (three per week), each last for one hour of a specialized exercise program supervised by the physiotherapist. They were asked to do their daily knee resistance and flexibility exercises in three sets of 10 repetitions and one set of five repetitions, respectively. N.B: all patients of the three groups will receive a home rehabilitation program and educational leaflet All patients were evaluated initially, then after 2 and 6 months after therapy completion. An independent physician who was blinded to patients’ group allocation throughout the study performed all evaluations. The subjects filled a questionnaire about their demographic data and medical history. They were evaluated by detailed physical examination, imaging techniques, grey-scale musculoskeletal ultrasound (MSUS) knee examination, and laboratory tests including complete blood count (CBC) to screen for inclusion and exclusion criteria. The total duration of the trial is 7 months for each patient (1 month for therapeutic intervention and 6 months follow-up). |
| Intervention type | Mixed |
| Primary outcome measure(s) |
Pain severity measured using Visual Analogue Scale (VAS) of shoulder pain initially, then after 2 and 6 months of therapy. Patients point to their amount of pain on a scale of zero (no pain) to 100 (agonizing severe pain), according to their subjective feelings on a 100-millimeter scale drawn on paper. In this scale, a higher score indicates much pain. |
| Key secondary outcome measure(s) |
Measured initially, then after 2 and 6 months of therapy: |
| Completion date | 30/12/2018 |
Eligibility
| Participant type(s) | Patient |
|---|---|
| Age group | Adult |
| Sex | All |
| Target sample size at registration | 60 |
| Key inclusion criteria | 1. History of chronic (at least 4 months) pain or swelling of the knee 2. Imaging findings (radiography) of mild to moderate degenerative changes in the knee joint on Kellgren–Lawrence scale from I–III |
| Key exclusion criteria | 1. Age >80 years 2. Rheumatic pathologies (rheumatoid, psoriatic and reactive arthritis, and seronegative spondyloarthritis) 3. Hematological diseases (coagulopathies) 4. Severe systemic diseases (renal, hepatic, cardiac, infections, endocrinopathies, malignancies) 5. Patients on therapy with anticoagulants–anti-aggregants 6. Use of NSAIDs within 5 days before blood procedure 7. Grade IV gonarthrosis 8. History of knee operarion, or recent knee trauma 9. Previous intra-articular injection with steroids, HA and/or PRP 10. Hb values<11 g/dl, and/or platelet values<150.000/mm3 |
| Date of first enrolment | 20/03/2016 |
| Date of final enrolment | 19/03/2017 |
Locations
Countries of recruitment
- United Arab Emirates
Study participating centre
Dubai
7272
United Arab Emirates
Results and Publications
| Individual participant data (IPD) Intention to share | Yes |
|---|---|
| IPD sharing plan summary | Stored in repository |
| IPD sharing plan | The datasets generated during and/or analysed during the current study will be stored in a repository. |
Study outputs
| Output type | Details | Date created | Date added | Peer reviewed? | Patient-facing? |
|---|---|---|---|---|---|
| Participant information sheet | Participant information sheet | 11/11/2025 | 11/11/2025 | No | Yes |
Editorial Notes
10/12/2019: The intention to publish date has been changed from 01/05/2019 to 31/01/2020.
17/04/2019: Trial's existence confirmed by Dubai scientific research ethical committee (DSREC).
