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Efficacy and Safety Study of Intra-Articular Injections of Autologous Peripheral Blood Stem Cells Following Subchondral Drilling Surgery for the Treatment of Articular Cartilage Injury in the Knee

Multicenter, Randomized, Open-Label, Standard Treatment-Controlled Parallel Group Phase 2 Study to Evaluate Efficacy and Safety of Intra-Articular Injections of Autologous Peripheral Blood Stem Cells and Hyaluronic Acid Adjuvant Therapy Following Subchondral Drilling Surgery for the Treatment of Articular Cartilage Injury in the Knee With an Optional Open-Label Extension for the Standard Treatment-Controlled Group

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03101163
Enrollment
120
Registered
2017-04-04
Start date
2015-12-31
Completion date
2022-07-31
Last updated
2022-08-16

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

Conditions

Articular Cartilage; Degeneration, Articular Cartilage Disorder of Knee

Brief summary

This is a 24-month, multicenter, randomized, open-label, standard treatment-controlled, parallel-group, Phase 2 study for adults with large or complicated knee articular cartilage lesions and are candidates for knee joint cartilage repair surgery. The safety and efficacy of intra-articular injections of peripheral blood stem cells (PBSCs) together with hyaluronic acid (HA) after subchondral drilling surgery will be evaluated to determine whether PBSC therapy can improve functional outcome and reduce pain of the knee joint better than a standard treatment (HA injections and physiotherapy regimen).

Detailed description

This is a 24-month, multicenter, randomized, open-label, standard treatment-controlled, parallel-group, Phase 2 study for adults with large or complicated knee articular cartilage lesions and are candidates for knee joint cartilage repair surgery. The safety and efficacy of intra-articular injections of peripheral blood stem cells (PBSCs) together with hyaluronic acid (HA) after subchondral drilling surgery will be evaluated to determine whether PBSC therapy can improve functional outcome and reduce pain of the knee joint better than a standard treatment (HA injections and physiotherapy regimen).

Interventions

BIOLOGICALAutologous peripheral blood stem cells and hyaluronic acid

Regimen of intra-articular PBSC and HA injections and postoperative physiotherapy

OTHERHyaluronic acid

Regimen of intra-articular HA injections and postoperative physiotherapy

Sponsors

KLSMC Stem Cells, Inc.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 55 Years
Healthy volunteers
No

Inclusion criteria

* Aged between 18 to 55 years at screening (20 to 57 years for the open-label extension) * Present for evaluation and treatment of knee pain, knee swelling, or knee mechanical symptoms due to cartilage lesions * Provide written informed consent * International Cartilage Repair Society (ICRS) Grade 3 or 4 lesions diagnosis from MRI scans of the target knee * All subjects must also satisfy at least 1 of the following inclusion criteria: * Isolated knee articular cartilage lesion (single lesion) estimated to be ≥3 cm2 as demonstrated on MRI scanning. Multiple knee articular cartilage lesions (multiple lesions) with at least 1 lesion estimated to be ≥3 cm2 as demonstrated on MRI scanning. Bipolar cartilage defects demonstrated on MRI scanning with at least 1 articular surface lesion to be ≥3 cm2. One or more cartilage defects involving the patello-femoral joint as demonstrated on MRI scanning with at least 1 lesion ≥3 cm2. One or more cartilage defects involving the tibio-femoral joint as demonstrated on MRI scanning with at least 1 lesion to be ≥3 cm2. Previously failed cartilage repair procedures (i.e., microfracture, osteochondral autograft transplantation surgery (OATS), ACI)

Exclusion criteria

* Three or more previous surgical interventions on the knee in question. * Preoperative flexion deformity greater than 10 degrees. * Presence of ligamentous injury which would require reconstruction, varus or valgus deformity requiring osteotomy, or cases that require complex surgery prior to cartilage regeneration

Design outcomes

Primary

MeasureTime frameDescription
International Knee Documentation Committee (IKDC) score24 monthsSubjective IKDC core as a measure of joint function
Knee injury and Osteoarthritis Outcome (KOOS) pain subdomain24 monthsKOOS pain subdomain score as a measure of joint pain

Secondary

MeasureTime frameDescription
Numeric Rating Scale (NRS) for pain24 monthsNumeric Rating Scale (NRS) for pain

Other

MeasureTime frame
Incidence of Treatment-Emergent Adverse Events [Safety and Tolerability]up to 24 months

Countries

Malaysia, United States

Outcome results

None listed

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