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Evaluation of the Single Injection of BMAC vs HA in the Treatment of the Ankle Osteoarthritis

BMAC vs HA in Infiltrative Therapy for Osteoarthritis of the Ankle: Randomized Controlled Clinical Trial

Status
Terminated
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04883892
Enrollment
18
Registered
2021-05-12
Start date
2021-12-15
Completion date
2025-08-11
Last updated
2025-08-17

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

Conditions

Ankle Osteoarthritis

Keywords

bone marrow aspirate concentrate, hyaluronic acid, BMAC, HA, ankle, ankle injection, ankle OA

Brief summary

The aim of the study is to compare the efficacy of the infiltrative therapy of BMAC vs HA up to 24 months in the treatment of the ankle osteoarthritis. The efficacy will be assessed through clinical, objective and subjective evaluations. After 12 months patients in the control group can decide to cross-over in the treatment group.

Detailed description

All the patients who meet the inclusion criteria and giving written informed consent will be randomized. We planned to enrol 120 patients. Following the randomization, every patient will be treated with a single injection of Bone Marrow Aspirate Concentrate (BMAC) or two injections of Hyaluronic Acid (HA) in the affected ankle. After the treatment patients will be followed up to 24 months whit clinical and radiological assessment. After 12 months patients in the control group can decide to cross-over in the treatment group with BMAC. These patients will be followed up further 12 months.

Interventions

PROCEDUREBMAC

patients will be injected with BMAC into the ankle joint, after treatment patients will be followed up to 24 months. In particular patients will be assessed after treatment at 1, 3, 6, 12 and 24 months. During the injection, samples of BMAC will be collected for the characterization of the phenotype markers and clonogenic capability

PROCEDUREHA

patients will be treated with two injection of HA, one every 15 days, into the ankle joint. After treatment these patients will be followed up to 24 months. At 12 months patients can decide to cross.over in the BMAC arm treatment. After cross-over patients will be assessed for further 12 months.

Sponsors

Istituto Ortopedico Rizzoli
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
TREATMENT
Masking
SINGLE (Outcomes Assessor)

Intervention model description

RCT, single-blind, allocation 1:1. After 12 months patients in the control group are allowed to cross-over in the treatment group

Eligibility

Sex/Gender
ALL
Age
18 Years to 70 Years
Healthy volunteers
No

Inclusion criteria

1. Patients with degenerative ankle cartilage disease; 2. Unilateral involvement on the ankle; 3. Signs and symptoms of degenerative pathology of the ankle cartilage; 4. Radiographic or MRI signs of degenerative pathology of the ankle cartilage (OA Van Dijk grade 1-3); 5. No clinically significant electrocardiographic changes (recently performed ECG). 6. Ability and consent of patients to actively participate in clinical follow-up;

Exclusion criteria

1. Patients unable to give consent; 2. Patients who have undergone intra-articular infiltration of another substance in the preceding 6 months; 3. Patients who have undergone ankle surgery in the preceding 12 months; 4. Patients with malignant neoplasms; 5. Patients with rheumatic diseases; 6. Patients with uncompensated diabetes; 9\. Patients with uncompensated thyroid metabolic disorders; 10. Patients who abuse alcoholic beverages, drugs or medications; 11. Body Mass Index \> 35;

Design outcomes

Primary

MeasureTime frameDescription
AOS (Ankle Osteoarthritis Scale)Baseline, 1, 3, 6, 12, 24 monthsEvaluation of the change from baseline of the OAS score, assessing the trend of pain and function up to 24 months from the treatment

Secondary

MeasureTime frameDescription
AOFAS (The American Orthopedic Foot and Ankle Score)Baseline, 1, 3, 6, 12, 24 monthsScore 0-100 made by 3 categories: Pain (0-40), Function (0-50) and Alignment (0-10). The best clinical and function condition is represented by a score of 100. 0 is the worst possible condition.

Other

MeasureTime frameDescription
EuroQol Visual Analogue Scale (EQ-VAS)Baseline, 1, 3, 6, 12, 24 months0 - 100 scale where 100 is the best possible healthand 0 is the worst possible health
EQ-5D (EuroQoL) Current Health AssessmentBaseline, 1, 3, 6, 12, 24 monthsScore for the assessment of the quality of life of the patient.
VAS function (Visual Analog Score - function)Baseline, 1, 3, 6, 12, 24 monthsthe scale is to expect the patient to select the number that best describes their functional disability status, in a range of length from 0 to 10 cm. The higher the value indicated the higher the degree of disability.
Evaluation of the osteoarthrosis progression of the ankle joint after treatment through radiological exams12, 24 monthsRX and MRI will be performed at 12 and 24 month after treatment
Patient Acceptable Symptom State (PASS)Baseline, 1, 3, 6, 12, 24 monthstool for assessing patient satisfaction in consideration of their current degree of pain, function and daily activity. The patient will evaluate his degree of satisfaction by answering a dichotomous closed question (yes / no).
VAS pain (Visual Analog Score - pain)Baseline, 1, 3, 6, 12, 24 monthsthe scale is to expect the patient to select the number that best describes their pain status, in a range of length from 0 to 10 cm. The higher the value indicated the higher the degree of disability.

Countries

Italy

Outcome results

None listed

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