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Allogenic Mesenchymal Stem Cell Intraarticular Injection for Knee Osteoarthritis Therapy

Allogenic Mesenchymal Stem Cell Intraarticular Injection for Knee Osteoarthritis Therapy, an RCT Explorative Mode-of-action Study

Status
Recruiting
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05933434
Acronym
STEMJOINT
Enrollment
80
Registered
2023-07-06
Start date
2024-03-07
Completion date
2030-10-31
Last updated
2024-06-11

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

Conditions

Knee Osteoarthritis

Keywords

allogenic adipose derived mesenchymal stem cells, adipose derived mesenchymal stem cells, mesenchymal stem cells, stem cells

Brief summary

This phase I and II double blinded randomized clinical controlled trial investigates the safety and efficacy of intraarticular knee injection with allogenic adipose derived mesenchymal stem cells (AD-MSC), in patients suffering from mild-moderate knee osteoarthritis compared to placebo injection with saline.

Interventions

BIOLOGICALAllogenic adipose derived mesenchymal stem cells (AD-MSC)

Laboratory isolated, cultivated and cryopreserved allogenic adipose derived mesenchymal stem cells (AD-MSC) from health donors undergoing cometic plastic surgery will be thawed on the injection day and formulated in 10 mL saline. The AD-MSCs will then be intraarticular injected using ultrasonic guidance.

OTHERSaline

10 mL saline will be intraarticular injected using ultrasonic guidance.

Sponsors

Aarhus University Hospital
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)

Masking description

Double-blinded (participant and investigator)

Intervention model description

Interventional group * Single intraarticular knee injection with allogenic adipose derived mesenchymal stem cells Placebo group * Single intraarticular knee injection with saline

Eligibility

Sex/Gender
ALL
Age
40 Years to 75 Years
Healthy volunteers
No

Inclusion criteria

* Chronic knee pain (defined for at least 6 months with NRS 4 or above when pain worst) * Patients with Grade II-III osteoarthritis according to the Kellgren Lawrence Classification and a joint width space of 1-3 mm. * Axial hip, knee, ankle x-ray with no more than 5 degrees valgus/varus deformity * Medial, lateral or dual compartment OA as determined above * BMI \<35 * Danish speaker * Patients must be legally competent and must be able to sign the written consent

Exclusion criteria

* Severe Osteoarthritis (Grade IV according to Kellgren Lavrence Classification) * Intraarticular tumor, infection or fracture * Pregnancy and breast feeding * Cognitive impairment * Treatment with cytostatic drugs * Previous intraarticular knee injection in the past 3 mo. * Unable to perform MRI scan (non-compatible implants, claustrophobia and severe obesity(\>BMI 35) * Previous ligament reconstruction * Meniscal operation with resection with more than 50% or multiple meniscal operations (more than one resection) * Diabetes mellitus type 1 and 2 * Knee instability on physical examination * History of allergy to antibiotics * Concomitant severe infection, malignant tumor, coagulation diseases or uncontrolled or unmanaged systemic disease * Presence of other types of inflammatory arthritis

Design outcomes

Primary

MeasureTime frameDescription
Observation (change) of adverse eventsBaseline, 3 months, 12 months, 24 months, 3 years, 4 years, 5 yearsPain Diary first 30 days after treatment, any reported adverse events after treatment
Change in Knee symptoms (questionnaire Knee injury and Osteoarthritis Outcome Score (KOOS) (symptoms)) from baselineBaseline, 3 months, 12 months, 24 months, 3 years, 4 years, 5 years(questionnaire Knee injury and Osteoarthritis Outcome Score (KOOS) (symptoms))

Secondary

MeasureTime frameDescription
Observation (change) of quantitative cartilage regeneration compared to baselineBaseline, 3 months, 12 months, 24 monthsQuantitative MRI (unit: stress and strain and volumen cartilage)
Improvement (change) during clinical examination with range of motion compared to baselineBaseline, 3 months, 12 months, 24 monthsRange of motion (unit: degrees)
Change in pain from baselineBaseline, 3 months, 12 months, 24 months, 3 years, 4 years, 5 yearsNumeric Rating Scale (NRS)
Improvement (change) during clinical examination with measurement of knee diameter (swelling) compared to baselineBaseline, 3 months, 12 months, 24 monthsMeasure knee diameter (unit: cm)
Improvement (change) during clinical examination with measurement of quadriceps muscle diameter (atrofi) compared to baselineBaseline, 3 months, 12 months, 24 monthsMeasure quadriceps muscle (unit: cm)
Improvement (change) during clinical examination with Effusion tests (swelling) compared to baselineBaseline, 3 months, 12 months, 24 monthsEffusion tests (swelling) (unit: effusion (YES/NO))
Observation (change) of cartilage regeneration compared to baselineBaseline, 3 months, 12 months, 24 monthsMRI Osteoarthritis Knee Score

Countries

Denmark

Contacts

Primary ContactRasmus Aabling, MD
rasaab@clin.au.dk+4528496767
Backup ContactMichael Pedersen, Professor
michael@clin.au.dk

Outcome results

None listed

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