AzTrials
AzTrials

The Focus of the Study is the Quality and Amount of Regenerated Articular Cartilage.CulturedNCT01961973

A Study to Compare Two Techniques for Articular Cartilage Repair: Cultured Chondrocytes Vs. Cultured BMAC

A study testing Cultured Chondrocytes and Cultured BMAC in people with The Focus of the Study is the Quality and Amount of Regenerated Articular Cartilage., run by Shetty-Kim Research Foundation at 1 site in United Kingdom.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
Search all trials

Trial summary

Study Title: A study to compare two articular cartilage repair techniques in the knee joint: The use of Cultured Chondrocytes Vs. Cultured bone marrow aspiration cells. Study hypothesis: We start with the hypothesis that both treatments are equally effective. Read more about this study

Who is it for?
Ages 18 to 65 years
What is being tested?
Cultured Chondrocytes and Cultured BMAC
Could I receive a placebo?
No, everyone receives an active treatment
How many people
100 participants
Where
1 siteUnited Kingdom
Study dates
Jan 2014to Jun 2017
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 65 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Participant is willing and able to give informed consent for participation in the study.
  • Male or Female, aged 18 years to 65 years.
  • Diagnosed with articular cartilage defect in the knee (ICRS/Outerbridge grade III/IV cartilage lesions as assessed on MRI scan).
  • No other significant medical co-morbidities, as assessed by pre-operatively, that could interfere with surgery results of trial eg. Hypertension, COPD etc.
  • Participant has clinically acceptable laboratory and ECG tests at pre-assessment clinic.
  • Able (in the Investigators opinion) and willing to comply with all study requirements.
  • Up to 3 lesions of sizes 2-8 cm2

Who cannot join

  • Generalized and/or inflammatory arthritis
  • Active joint inflammation
  • More than 5 degrees of varus or valgus deformity
  • Age below 18 and over 65 years
  • More than 4 lesions
  • Lesions more than 8 cm2
  • Significant co-morbidities or classified as ASA grade 3/4

Trial locations and contacts

1 site in 1 country.

Asode A Shetty, MD, PhD, MCh, FRCS contact

01634 662813

aashetty@hotmail.com

United Kingdom1 site
  • Kent Knee Unit

    Walderslade, Kent, ME5 9PG

    Vishvas A Shetty, MBBS, MCh, +44 1634 662813, vishvas.shetty@doctors.org.uk

    Vishvas A Shetty, MBBS, MCh

Other trials in United Kingdom

About this study

Official title: Trial to Compare the Efficacy of Two Surgical Techniques for Articular Cartilage Repair in the Knee: The Use of Cultured Chondrocytes Vs. the Use of Cultured Bone Marrow Aspirate Cells.

Study Title: A study to compare two articular cartilage repair techniques in the knee joint: The use of Cultured Chondrocytes Vs. Cultured bone marrow aspiration cells.

Study hypothesis: We start with the hypothesis that both treatments are equally effective.

Read more

Trial Design: The participating patients will be divided into two groups, each group receiving either one of the treatment modalities. This study will not be randomised or blinded. Both procedures will be done at the Spire Alexandra Hospital by Professor A. A Shetty, who is one half of the team that devised both techniques. The post-operative rehabilitation process will be the same for both groups.

Trial Participants: All participants will be from patients attending Professor Shetty's clinic at the Spire Alexandra Hospital.

Planned Sample Size: 50 patients in each group

Follow-up duration: The participating patients will be followed up at 2 weeks, 6 weeks, 3 months, 6 months, 1 year and 2 years following the surgery by visits to the clinic and assessed clinically. The surgical outcomes will be measured by by IKDC, KOOS and Lysholm scores; cartilage growth will be measured by the MOCART score.

Planned Trial Period: Two to three years

Primary Objective: To establish superiority, if any, of either procedure over the other by studying pain relief, cartilage growth and improvement in function.

Primary Endpoint: At the end of the 2 year follow up for all participating patients.

Read the detailed description

BACKGROUND:

Articular cartilage repair in the knee is aimed at young patients with area(s) of cartilage loss and no deformity of the knee. These patients aren't indicated for a knee replacement. Articular cartilage repair leads to improvement of symptoms of pain, locking and function. Traditionally, articular cartilage repair has always involved exposing the entire knee joint with an arthrotomy. This, though effective, would lead to a large scar, longer hospital stay, longer rehabilitation and its associated complications. Also, the use of Bone Marrow Aspirate Cells (BMAC) for the purpose of cartilage repair has long been debated with both sides having valid arguments and good surgical results.

RATIONALE:

In our study, one method (Cultured Chondrocytes) requires an arthroscopy and an arthrotomy, takes 6 weeks to complete and is followed by 6 weeks of partial weight bearing on the operated leg. The other method (Cultured BMAC) is done arthroscopically, followed by 4 injections into the affected knee and takes 6 weeks to complete which includes 6 weeks of partial weight bearing on the operated leg.

Both procedures have shown encouraging results in terms of pain relief, cartilage growth and improved function. The use of cultured chondrocytes requires two surgeries and takes a total of 12 weeks till the patient can walk without support while the use of cultured BMAC involves only one surgery and can have the patient walking unsupported in 6 weeks. This study aims to ascertain if either technique is superior to the other.

If the cultured BMAC technique is shown to be superior, it could mean lesser surgery and faster recovery for the patient.

STUDY DESIGN: This study aims to compare two techniques of articular cartilage repair in the knee, namely the use of cultured chondrocytes and the use of cultured bone marrow aspirate cells (BMAC). The principal objective of is to ascertain and assess the superiority, if any, of either surgical technique over the other. The superiority will be assessed with by the certain scoring systems (IKDC, KOOS, Lysholm and MOCART) measured pre- and post-operatively.

Depending on which procedure the patient chooses to have, they will be allotted to either the cultured chondrocytes group or the cultured BMAC group. The patient is followed up in the clinic at the Spire Alexandra Hospital at 2 weeks, 6 weeks, 3 months, 6 months, 1 year and 2 years following the surgery and their progress is documented by questionnaires and clinical examination. MRI scans are done at one and two years to assess the extent of cartilage growth.

SURGICAL TECHNIQUES

Cultured chondrocytes:

This method has two stages. In the first stage, a knee arthroscopy is done to harvest viable cartilage cells which are then sent to a lab to be cultured for 6 weeks. The entry ports are then closed and the knee is covered with a sterile dressing. The patient is transferred to the surgical recovery ward and, when medically stable, then transferred to their room on the ward. After discharge from the hospital, the patient is advised partial weight bearing on the operated leg for six weeks after the surgery. They also undergo five sessions of physiotherapy. Surgical clips and sutures are removed at 2 weeks following the surgery.

In the second stage, an arthrotomy is performed. The area of cartilage deficiency is prepared and the cultured cells are transplanted onto it. The incision is then closed and the knee is covered with a sterile dressing. The patient is transferred to the surgical recovery ward and, when medically stable, then transferred to their room on the ward. After discharge from the hospital, the patient is advised partial weight bearing on the operated leg for 6 weeks after the surgery. They also undergo 5 sessions of physiotherapy. Surgical clips and sutures are removed at 2 weeks following the surgery.

Cultured BMAC:

This method also has two major stages. The first stage involves harvesting BMAC from the patient's iliac crest (hip bone), which are then sent to the laboratory for culture for 3 weeks. Simultaneously, an arthroscopy is performed on the affected knee and the area of cartilage deficiency is debrided and microfractured. The entry ports are then closed and the knee is covered with a sterile dressing. The patient is transferred to the surgical recovery ward and, when medically stable, then transferred to their room on the ward. After discharge from the hospital, the patient is advised partial weight bearing on the operated leg for six weeks after the surgery. They also undergo five sessions of physiotherapy. Surgical clips and sutures are removed at 2 weeks following the surgery.

In the second stage, the cultured BMAC are injected into the affected knee and cells attach themselves to the microfractured area. The patient is then recalled at 4, 5 and 6 weeks from the first stage for an injection of Hyaluronic Acid into the operated knee.

Follow up: Patients in both arms will be followed up at 2,6,12,26,52 and 104 weeks following the end of the second stage of the procedure. Parameters noted will be pain relief, improvement in function and cartilage growth as assessed by MRI scans at one and two years.

Being tested
Cultured Chondrocytes, Cultured BMAC
Keywords
Articular cartilage, Chondrocytes, BMAC

What participants receive

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

  • Cultured ChondrocytesProcedure or surgery

    This method has two stages. In the first stage, a knee arthroscopy is done to harvest viable cartilage cells which are then sent to a lab to be cultured for 6 weeks. In the second stage, an arthrotomy is performed. The area of cartilage deficiency is prepared and the cultured cells are transplanted onto it. After discharge from the hospital, the patient is advised partial weight bearing on the operated leg for 6 weeks after the surgery.

  • Cultured BMACProcedure or surgery

    This method also has two major stages. The first stage involves harvesting BMAC from the patient's iliac crest (hip bone), which are then sent to the laboratory for culture for 3 weeks. Simultaneously, an arthroscopy is performed on the affected knee and the area of cartilage deficiency is debrided and microfractured. In the second stage, the cultured BMAC are injected into the affected knee and cells attach themselves to the microfractured area. The patient is then recalled at 4, 5 and 6 weeks from the first stage for an injection of Hyaluronic Acid into the operated knee.

Study groups in NCT01961973
Study groupRoleWhat they receive
Cultured chondrocytesActive comparatorCultured chondrocytes: This method has two stages. In the first stage, a knee arthroscopy is done to harvest viable cartilage cells which are then sent to a lab to be cultured for 6 weeks. In the second stage, an arthrotomy is performed. The area of cartilage deficiency is prepared and the cultured cells are transplanted onto it. After discharge from the hospital, the patient is advised partial weight bearing on the operated leg for 6 weeks after the surgery.
Receives: Procedure: Cultured Chondrocytes
Cultured BMACActive comparatorThis method also has two major stages. The first stage involves harvesting BMAC from the patient's iliac crest (hip bone), which are then sent to the laboratory for culture for 3 weeks. Simultaneously, an arthroscopy is performed on the affected knee and the area of cartilage deficiency is debrided and microfractured. In the second stage, the cultured BMAC are injected into the affected knee and cells attach themselves to the microfractured area. The patient is then recalled at 4, 5 and 6 weeks from the first stage for an injection of Hyaluronic Acid into the operated knee.
Receives: Procedure: Cultured BMAC

What is being measured

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

  1. Clinical outcome

    This study aims to compare two techniques of articular cartilage repair in the knee, namely the use of cultured chondrocytes and the use of cultured bone marrow aspirate cells (BMAC). The principal objective of is to ascertain and assess the superiority, if any, of either surgical technique over the other. The superiority will be assessed with by the IKDC, KOOS, Lysholm scores measured pre- and post-operatively.

    Measured: 2 years

  2. Radiological outcome

    This study aims to compare two techniques of articular cartilage repair in the knee, namely the use of cultured chondrocytes and the use of cultured bone marrow aspirate cells (BMAC). The principal objective of is to ascertain and assess the superiority, if any, of either surgical technique over the other. The radiological superiority will be assessed with by MOCART scores measured pre- and post-operatively.

    Measured: 2 years

Timeline

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

  1. First posted14 Oct 2013 (estimated)
  2. Study startJan 2014
  3. Primary completionDec 2016 (estimated)
  4. Study completionJun 2017 (estimated)

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
Non-randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
100 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01961973
Sponsor's protocol ID
ShettyKimRF 001
Acronym
Cultured
Status last verified
Oct 2013
First submitted
10 Oct 2013
Last updated
14 Oct 2013
Results posted
No
Data monitoring committee
Yes

Questions about this trial

What is this clinical trial studying?

A study testing Cultured Chondrocytes and Cultured BMAC in people with The Focus of the Study is the Quality and Amount of Regenerated Articular Cartilage., run by Shetty-Kim Research Foundation at 1 site in United Kingdom.

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 7 inclusion and 7 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: status not confirmed, as of the sponsor's last update on 14 Oct 2013. 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 United Kingdom. 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?

Results are not available in the source record.

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

Contact Asode A Shetty, MD, PhD, MCh, FRCS (01634 662813, aashetty@hotmail.com), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Clinical outcome (time frame: 2 years). The study lists 2 primary outcomes in all. 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 14 Oct 2013.

Free account

Log in to keep searching

You’ve used your 3 free searches. AzTrials is free: log in or create a free account to keep searching clinical trials and save the ones you want to follow.

Create a free accountLog in