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Patellar TendinitisNCT04753853

Stromal Vascular Fraction (SVF) Injection in the Treatment of Patellar Tendinopathy

A study testing Stromal Vascular Fraction injection in people with Patellar Tendinitis and Tendinopathy, run by Istituto Ortopedico Rizzoli at 1 site in Italy.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The aim of the study is the evaluation of clinical and radiological results after the treatment of patellar tendinopathy through the injection of autologous ultrasound-guided, intra- and peri-tendon stromal vascular fraction. Read more about this study

Who is it for?
Ages 18 to 60 years
What is being tested?
Stromal Vascular Fraction injection
Could I receive a placebo?
No, everyone receives an active treatment
How many people
30 participants
Where
1 siteItaly
Study dates
1 Jul 2021to 5 May 2025
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 60 years
  • All sexes
  • No healthy volunteers
  • Adult

Who may be able to join

  • Ultrasound or MRI signs of patellar tendon pathology

Who cannot join

  • BMI > 30
  • Patients suffering from: rheumatic diseases, diabetes, infectious processes, epilepsy, severe osteoporosis
  • Patients undergoing intra-tendon infiltration of another substance within the previous 6 months;
  • Patients who had patellar tendon surgery within the previous 12 months;
  • Immunodepression
  • On going systemic inflammatory diseases (stabilized outcomes of such diseases are not considered absolute contraindications).

Trial locations and contacts

1 site in 1 country.

Italy1 site
  • Istituto Ortopedico Rizzoli

    Bologna, 40124

Other trials in Italy

About this study

Official title: Effect of Infiltrative Treatment of Stromal Vascular Fraction in Patellar Tendinopathy

The aim of the study is the evaluation of clinical and radiological results after the treatment of patellar tendinopathy through the injection of autologous ultrasound-guided, intra- and peri-tendon stromal vascular fraction.

Read the detailed description

After being informed about the study and potential risks, all patients giving written informed consent will be treated according to the study protocol.

Every patients will undergo to a single peri- and intra- tendon injection with Autologous Stromal Vascula Fraction (SVF).

At baseline and at every follow-ups patients will be evaluated clinically and radiologically.

In particular, clinical evaluation and questionnaires will be performed at baseline, 1, 3, 6, 12 and 24 months visits, Ultrasound will be performed at baseline, 6 and 12 months visits. MRI will be performed at baseline and 6 months visits.

Being tested
Stromal Vascular Fraction injection
Keywords
stromal vascular fraction, patellar tendinopathy, injection
Medical subject headings
Tendinopathy

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Stromal Vascular Fraction injectionProcedure or surgery

    intra- and peri-tendon ultrasound-guided injection of Stromal Vascular Fraction

Study groups in NCT04753853
Study groupRoleWhat they receive
Stromal Vascular Fraction injectionExperimentalintra- and peri-tendon ultrasound-guided injection of Stromal Vascular Fraction
Receives: Procedure: Stromal Vascular Fraction injection

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Victorian Institute of Sport Assessment-Patella (VISA-P) questionnaire

    VISA-P score is a questionnaire that assesses symptoms, simple tests of function, and the ability to play sports. It contains 8 questions about patellar tendinosis, max score for asymptomatic individual is 100; theoretical minimum is 0

    Measured: 6 months

Secondary outcomes (7)
  1. Victorian Institute of Sport Assessment-Patella (VISA-P) questionnaire

    VISA-P score is a questionnaire that assesses symptoms, simple tests of function, and the ability to play sports. It contains 8 questions about patellar tendinosis, max score for asymptomatic individual is 100; theoretical minimum is 0

    Measured: Baseline, 1, 3, 6, and 12 months (at 24 month the questionnaire will be performed by telephone)

  2. EuroQol Visual Analogue Scale (EQ-VAS)

    EQ-VAS, which asks patients to indicate their overall health on a vertical visual analogue scale, ranging from "worst possible" to "best possible" health.

    Measured: Baseline, 1, 3, 6, and 12 months (at 24 month the questionnaire will be performed by telephone)

  3. EQ-5D(EuroQol)

    the EQ-5D profile, asks patients to classify their health based on self-assessed levels of problems ("no", "some", "extreme") on five dimensions.

    Measured: Baseline, 1, 3, 6, and 12 months (at 24 month the questionnaire will be performed by telephone)

  4. Visual Analog Scale - VAS

    Analogue scale represented by a line of 10 cm length, ranging from "absence of pain" to "the worst imaginable pain "

    Measured: Baseline, 1, 3, 6, and 12 months (at 24 month the questionnaire will be performed by telephone)

  5. Tegner score

    Tegner's activity scale classifies the activity according to work and sports activities on a scale from 0 to 10. Zero represents disability because of knee problems and 10 represents soccer a national or international level.

    Measured: Baseline, 1, 3, 6, and 12 months (at 24 month the questionnaire will be performed by telephone)

  6. MRI evaluation

    MRI performing and evaluation

    Measured: baseline and 6 month

  7. ultrasound

    ultrasound performing and thickness evaluation of the tendon

    Measured: baseline, 6 and 12 months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted15 Feb 2021
  2. Study start1 Jul 2021
  3. Primary completion10 Feb 2022
  4. Study completion5 May 2025

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Model description
Interventional Pilot study
Masking
None (open label)
Enrolment
30 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04753853
Sponsor's protocol ID
Lipo-Tend
Status last verified
Sep 2025
First submitted
12 Feb 2021
Last updated
12 Sep 2025
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A study testing Stromal Vascular Fraction injection in people with Patellar Tendinitis and Tendinopathy, run by Istituto Ortopedico Rizzoli at 1 site in Italy.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 1 inclusion and 6 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 12 Sep 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Italy. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Victorian Institute of Sport Assessment-Patella (VISA-P) questionnaire (time frame: 6 months). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 12 Sep 2025.

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