ClinicalTrials.gg
CompletedNCT04352075MICROPREPUpdated Apr 20, 2020

Intra Articular Injection of Microfat and PRP in Knee Osteoarthritis

A Phase 1/2 interventional study of Autologous biologic drug of innovative therapy /cell therapy drug in Knee Osteoarthritis, sponsored by Clinique Juge. Completed at 1 site in France. Open to participants aged 18 Years to 65 Years. Per ClinicalTrials.gov, last updated 2020-04-20.

Sponsored by Clinique Juge · Phase 1/2, Interventional, and Treatment

From the registry’s dates

  • Registered 1 year 5 months after the study started (first participant enrolled Nov 2018, registered Apr 2020).
Phase
Phase 1/2
Study type
Interventional
Enrollment
30
Allocation
Randomized
Ages
18 Years to 65 Years
Sex
All
01

Study summary

The hypothesis of this project is that the injection of an innovative treatment (microfat and dose of autologous PRP) allows to delay knee arthroplasty in patients with knee OA resistant to medical treatment.

Read the detailed description

Osteoarthritis is the most common joint disease in the world and one of the most common causes of pain and functional disability. The incidence of cartilage pathology has grown due to the ageing population, and the increase in sports participation and its associated trauma. The treatment of these cartilage damage is limited and remains a major public health issue.

The aim of the medical treatment and intra articular injections consists in reducing pain and improving the knee function in order to limit the sport, professional and social negative impact in the youngest patients. Nevertheless their efficacy remain non predictable in patients.

The arthroplasty will be proposed in the final intention. Insofar arthroplasty is a surgical procedure 1 / which presents a potential infectious risk associated with its invasive nature, 2 / it requires iterative revision surgery, especially in young patients given the limited lifetime of the implants and 3 / whose complete postoperative recovery take several months, it seems justified to continue studies to validate effective alternative treatments to delay the use of joint replacements.

Recently, the emergence of biotherapy in orthopedics has developed the use of intra-articular injections of platelet-rich plasma (PRP). Their use has increased substantially and is based on the demonstration that platelet-rich plasma concentrate growth factors, can stimulate cartilage regeneration in vitro and in vivo preclinical models. In humans, recent data from the literature show that these autologous products are very well tolerated. Their scientific evaluation remains difficult in that 1 / indications and surgical procedures are not harmonized 2 / manufacturing processes PRP are not standardized 3 / quantitative and qualitative composition of PRP is rarely documented.

PRP administration procedures can be optimized: indeed in that, it is a liquid preparation (platelet suspension), its administration in a interface tissue allows to limit its spread and potentiate its trophic effect on the injured cartilage site. Adipose tissue is the most relevant interface tissue given, because it's a tissue rich in stem cells with full therapeutic potential and is easily accessible by subcutaneous minimally invasive procedure. Thus, autologous microfat (fat removed under local anesthesia by manual liposuction using fine cannulas specific) administered in the synovial capsule, could play the matrix to receive the injection of PRP.

The hypothesis of this project is that the standardized injection of an innovative treatment (microfat and dose of autologous PRP) allows to delay knee arthroplasty in patients with knee OA resistant to medical treatment. This treatment, minimally invasive and with economically reasonable cost, would provide a new treatment for second intention. In terms medicoeconomic if this treatment is effective over a period of several years, even in cases where it is necessary to do it one or two times, it would significantly reduce the financial and societal impact of joint replacements.

02

Conditions studied

  • Knee Osteoarthritis

Keywords

  • knee
  • osteoarthritis
  • microfat
  • platelet rich plasma
03

In context

Osteoarthritis, Knee

3,391 studies on the registry are indexed under Osteoarthritis, Knee; 628 are open to participants now.

This study's enrollment of 30 is below the median of 69 across 2,808 interventional studies indexed under Osteoarthritis, Knee.

Browse Osteoarthritis, Knee studies →

Lead sponsor

This is the only study on the registry with Clinique Juge as lead sponsor.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 65 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Males and females between 20 to 65 years of age
  • Symptomatic knee osteoarthritis , ICRS grade 2, 3 ou 4 with VAS > 4 and failure of medical treatment for at least one year
  • BMI between 20 to 30
  • Written informed consent, signed by patient or legal representative
  • HB > 10g/dl
  • Negative pregnancy test
  • Social security affiliated

Exclusion criteria

Exclusion Criteria:

  • IRM contre-indications: ocular loose bodies, pace maker, neurostimulateur, cochlear implant, vascular clips, mettalic cardiac valve
  • BMI \< 20
  • Thrombocytopenia \< 150 G/L
  • Thrombocytosis > 450 G/L
  • Thrombopathy
  • TP \< 70%
  • TCA patient / witness rapport > 1,20
  • Anaemia: HB \< 10g/dl
  • Positive serology VIH1 and 2, Agp24, Ac HCV, Ag HbS, AcHbc, Ac HTLV I and II, TPHA
  • Treatment by platelet inhibiting agent, aspirin, anti vitamin K completed more than 2 weeks before inclusion
  • Chronic treatment by corticosteroid per os or treatment completed more than 2 weeks before inclusion
  • Intra articular knee injection of corticosteroid more than 8 weeks before inclusion
  • Intra articular knee injection of hyaluronic acid more than 8 weeks before inclusion
  • NSAI treatment completed more than 2 weeks before inclusion
  • Fever or recent disease
  • Auto immune disease
  • Inflammatory Arthritis
  • Immune deficit
  • Infectious disease
  • Malignant tumor being treated or history of malignant tumor
05

Study design

Phase
Phase 1 / Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
30 participants (actual)

Study arms

  • Experimental
    Microfat + PRP 3M platelets

    microfat (5 ml) associated with PRP with a dose of 3 billions of platelets (5 ml)

    Drug: Autologous biologic drug of innovative therapy /cell therapy drug

  • Experimental
    Microfat + PRP 1M platelets

    microfat (5 ml) associated with PRP with a dose of 1 billion of platelets (5 ml)

    Drug: Autologous biologic drug of innovative therapy /cell therapy drug

  • Experimental
    Microfat

    microfat (5 ml) and saline solution (5 ml)

    Drug: Autologous biologic drug of innovative therapy /cell therapy drug

Interventions

  • DrugAutologous biologic drug of innovative therapy /cell therapy drug

    Articular knee injection of microfat associated with a dose of 3 billions of platelets or associated with a dose of 1 billion of platelets or with saline solution

06

What researchers measure

Primary outcomes

  1. Cartilage relaxation time on MRI T2-mapping at 3 months

    The primary objective of this study is to demonstrate the efficacy of intra-articular injection of autologous microfat associated with a standardized preparation of autologous PRP, by changes in the cartilage relaxation time on MRI T2-mapping at 3 months.

    Time frame: Baseline and 3 months post injection

Secondary outcomes

  1. Improved of chondral lesion on MRI

    Improved chondral lesions at 3 months and 6 months on specific MRI cartilage sequences (DP FATSAT Axial, Axial T1, T2 mapping): quantitative morphological sequences resolution and qualitative structural sequences.

    Time frame: Baseline and 3 and 6 months post injection

  2. Pain

    The evolution of pain with the visual analogic scale compared to the initial state (scores at baseline) and the evolution of pain (VAS score) at 1, 3 and 6 months post-injection. Scale from 0 (no pain) to 10 (maximal pain)

    Time frame: Baseline and 1 and 3 and 6 months post injection

  3. Responding patients

    The proportion of patients not responding to treatment.

    Time frame: Baseline and 3 and 6 months post injection

  4. Biologic parameters / clinical efficacity

    The correlation between clinical efficacy and dose of PRP administered and dose of growth factors administered.

    Time frame: Baseline and 3 and 6 months post injection

  5. WOMAC

    The evolution of the functional impact of knee osteoarthritis with the Western Ontario and McMaster University Osteoarthritis score at 1, 3 and 6 months post-injection. Score from 0 to 96 (the worst)

    Time frame: Baseline and 1 and 3 and 6 months post injection

07

Study locations

1 site
  • Louis
    Marseille, 13008, France
08

References and documents

Publications

  • Louis ML, Dumonceau RG, Jouve E, Cohen M, Djouri R, Richardet N, Jourdan E, Giraudo L, Dumoulin C, Grimaud F, George FD, Veran J, Sabatier F, Magalon J. Intra-Articular Injection of Autologous Microfat and Platelet-Rich Plasma in the Treatment of Knee Osteoarthritis: A Double-Blind Randomized Comparative Study. Arthroscopy. 2021 Oct;37(10):3125-3137.e3. doi: 10.1016/j.arthro.2021.03.074. Epub 2021 Apr 20. PubMed 33887408 ↗

Individual participant data

Plan to share: No — Publication

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from Nov 2018 to primary completion in Aug 2019, 8 months.

Of 34 phase 1/2 interventional studies under Osteoarthritis, Knee, half reached primary completion within 25 months of starting (the median), counting those still running; a quarter within 12 and three quarters within 47. This study's 8 months is below that.

How these figures are worked out, and which studies are left out of them.

Registered
Apr 15, 2020
First posted
Apr 17, 2020
StartActual
Nov 15, 2018
Primary completionActual
Aug 1, 2019
CompletionActual
Mar 1, 2020
Last update
Apr 20, 2020
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Apr 20, 2020, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04352075
Lead sponsor
Clinique Juge
Responsible party
Marie-Laure LOUIS (Principal investigator, Clinique Juge) — Principal investigator
First posted
Apr 17, 2020
Start date
Nov 15, 2018
Primary completion
Aug 1, 2019
Completion
Mar 1, 2020
Last update
Apr 20, 2020

Study contacts

Marie Laure Louis, MD
principal investigator · ICOS Corporation

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Apr 2020. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion