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Very Small Embryonic-like Stem Cells for Knee Osteoarthritis

Autologous Very Small Embryonic-like Stem Cells(VSELs) for Knee Osteoarthritis

Status
Withdrawn
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03975101
Enrollment
0
Registered
2019-06-05
Start date
2019-07-05
Completion date
2020-06-15
Last updated
2020-10-19

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

Conditions

Knee Osteoarthritis, Stem Cell Transplant Complications

Brief summary

The aim of this study is the safety and efficacy of autologous very small embryonic-like stem cells(VSELs) to knee osteoarthritis.

Detailed description

VSELs come from the patient's peripheral blood, and will be injected in the most painful knee, or the worse knee on physical examination. Then follow-up the knee pain and imaging changes at 6 months and 1 year after treatment.

Interventions

Mononuclear cells were collected from peripheral blood of each patient using a machine, VSELs were isolated, and each group was injected according to different numbers after activation

Sponsors

Guangzhou Four-Leaf Clover HealthTech Co., Ltd.
CollaboratorINDUSTRY
Fuda Cancer Hospital, Guangzhou
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Investigator)

Masking description

The investigators screen patients with similar knee condition to ensure a small difference, and they randomized different numbers of VSELs to the patients.

Intervention model description

Three experimental groups were injected with different doses of VSEL, and the control group was injected with platelet-containing serum that dissolved VSEL.

Eligibility

Sex/Gender
ALL
Age
50 Years to 60 Years
Healthy volunteers
No

Inclusion criteria

* Patients had moderate to severe osteoarthritis of both knees. * Those had mechanical pain of knee joints, which was aggravated by walking or stair climbing. * Those complained of gelling pain of knee joint. * Those have crepitus and limitation of the joint range of motion with joint bony hypertrophy on physical examination, X-rays showed narrowing of joint space and osteophyte formation

Exclusion criteria

* Diabetic foot and patients with obvious edema in the legs caused by various causes * Blood disease patients, thrombocytopenia or dysfunction, hypofibrinemia or anticoagulant therapy, long-term use of aspirin

Design outcomes

Primary

MeasureTime frameDescription
Change of knee pain score2-4 weeks after injectionPain assessment by visual analogue score (VAS). 0 point: no pain; 1-3 points: there is a slight pain that can be tolerated; 4-6 points: the patient has pain and affects sleep, and can still bear it; 7-10 points: the patient has progressively strong pain, pain is unbearable, affecting appetite and sleep

Secondary

MeasureTime frameDescription
Change of knee pain score6 months after injectionPain assessment by visual analogue score (VAS). 0 point: no pain; 1-3 points: there is a slight pain that can be tolerated; 4-6 points: the patient has pain and affects sleep, and can still bear it; 7-10 points: the patient has progressively strong pain, pain is unbearable, affecting appetite and sleep
Imaging changes in the knee joint6 months after injectionMagnetic resonance image (MRI) examination of the smoothness of the knee joint surface, ligament, soft tissue and meniscus damage

Countries

China

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026