Minimal invasive treatment of cartilage forming bone cancer

ISRCTN ISRCTN13210000
DOI https://doi.org/10.1186/ISRCTN13210000
Secondary identifying numbers M09.077334
Submission date
06/01/2017
Registration date
15/01/2017
Last edited
18/07/2017
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Cancer
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data

Plain English summary of protocol

Background and study aims
Atypical cartilaginous tumours (ACT) are cartilage-producing tumours that arise from the bone. They have an intermediate malignant potential, which means that the tumours do not spread (metastasise) and patients do not usually die. However, they are treated often since they have a unknown potential to transform to more malignant tumours and spread, or they have local negative effects such as weakening of the bone. Treatment is still a topic of debate, since up to two decades ago whole segments of bone were removed (en bloc resection) and nowadays some physicians suggest to only monitor these tumours. Nevertheless, research in the last decade has shown that only removal of the tumour itself and not the surrounding bone (intralesional surgery) is successful in terms of tumour eradication and patient survival. However, this treatment can still lead to burdens such as hospital admission, long rehabilitation and complications. Therefore, the aim of this study is to investigate the effect of minimal invasive treatment of these tumours by radiofrequency ablation (RFA). In RFA, a needle is used that heats the tumour leading to cell death of the tumour (ablation).

Who can participate?
Patients aged 18 and over with an ACT in the long bones that needs surgery

What does the study involve?
Participants first undergo a biopsy (to take a sample of the tumour) and RFA in the same procedure under local or general anaesthetic. Three months later, a MRI scan is taken of the bone to assess the effect of the tumour ablation. Shortly after the MRI scan, patients receive the standard care of intralesional surgery. The material retrieved during surgery is sent to the pathologist to see if the tumour has been killed sufficiently by the previous RFA procedure.

What are the possible benefits and risks of participating?
The potential benefits of RFA are that it can be done through a small incision (cut) in the skin, and after the procedure full weight-bearing on the affected leg is often possible. The number of complications is lower compared to more invasive surgery, although burning wounds and fractures have been reported occasionally.

Where is the study run from?
The Departments of Orthopaedic Surgery, Radiology and Pathology of the University Medical Center Groningen, University of Groningen (Netherlands)

When is the study starting and how long is it expected to run for?
January 2009 to December 2013

Who is funding the study?
University Medical Center Groningen (Netherlands)

Who is the main contact?
Edwin F. Dierselhuis
e.f.dierselhuis@umcg.nl

Contact information

Mr Edwin Dierselhuis
Public

University Medical Center Groningen
Hanzeplein 1
Groningen
9700 RB
Netherlands

ORCiD logoORCID ID 0000-0002-7340-225X
Phone +31 (0)503 612 802
Email e.f.dierselhuis@umcg.nl

Study information

Study designA prospectively kept dataset of patients treated with RFA for ACT in the long bones is analysed. A CT-guided biopsy followed by RFA in the same session is conducted. Three months later, gadolinium-enhanced magnetic resonance imaging (Gd-MRI) will be performed to assess tumour ablation, followed within four weeks by curettage and adjuvant phenolization.
Primary study designInterventional
Secondary study designNon randomised study
Study setting(s)Hospital
Study typeTreatment
Participant information sheet Not available in web format, please use contact details to request a participant information sheet
Scientific titleRadiofrequency ablation: an alternative to curettage in the treatment of atypical cartilaginous tumours in the long bones
Study objectivesThe aim of this study is to report on progressing experience with radiofrequency ablation (RFA) as a treatment for atypical cartilaginous tumours (ACT) in the long bones.
Ethics approval(s)Medical Ethics Committee - University Medical Center Groningen - University of Groningen, 18/09/2009,
ref: M09.077334
Health condition(s) or problem(s) studiedAtypical cartilaginous tumors (ACT) in the long bones
InterventionPatients are first percutaneously treated by radiofrequency ablation (RFA) (intervention), and subsequently treated by standard care (curettage) (control). As a result, they serve as their own control.

Patients undergo a CT-guided biopsy followed by RFA under locoregional or general anaesthesia in the same session. Three months later, gadolinium-enhanced magnetic resonance imaging (Gd-MRI) is performed to assess tumour ablation, followed within 4 weeks by curettage and adjuvant phenolization. The material retrieved during this procedure is sent to the pathologist to see if the tumour has been killed sufficiently by the previous RFA procedure.
Intervention typeProcedure/Surgery
Primary outcome measure1. Percentage of patients who had a complete tumour ablation on a histological level
2. Percentage of tissue necrosis on a histological level
Both measured by analysing removed tissue in the Pathology department at a single timepoint directly after surgery
Secondary outcome measures1. Signs of residual tumour, measured using Gd-MRI at 3 months after RFA
2. Occurrence of complications, which were not recorded on specific timepoints
3. Disease-free survival after curettage, measured using at Gd-MRI at 6 months, 12 months and 24 months.
4. Functional outcome, assessed by musculoskeletal tumour society (MSTS) scores at 6 and 12 weeks after RFA and 6 and 12 weeks and 1 year after standard care
Overall study start date01/01/2009
Completion date31/12/2013

Eligibility

Participant type(s)Patient
Age groupAdult
Lower age limit18 Years
SexBoth
Target number of participants40
Key inclusion criteria1. Age 18 years and above
2. Clinical suspicion of ACT in the long bones that needs surgical intervention
Key exclusion criteria1. Tumour size > 50 mm
2. Tumour localised in the hand, foot, pelvis or axial skeleton
3. Presence of cognitive impairments
4. Previous treatment of the same lesion
Date of first enrolment18/09/2009
Date of final enrolment31/12/2013

Locations

Countries of recruitment

  • Netherlands

Study participating centre

University Medical Center Groningen - University of Groningen
9700 RB
Netherlands

Sponsor information

Universitair Medisch Centrum Groningen
Hospital/treatment centre

Hanzeplein 1
Groningen
9700 RB
Netherlands

ROR logo "ROR" https://ror.org/03cv38k47

Funders

Funder type

Hospital/treatment centre

Universitair Medisch Centrum Groningen
Government organisation / Local government
Alternative name(s)
University Medical Center Groningen, UMCG
Location
Netherlands

Results and Publications

Intention to publish date01/11/2014
Individual participant data (IPD) Intention to shareYes
IPD sharing plan summaryAvailable on request
Publication and dissemination planThe first results have been published (see Publication Summary field). Future plans are to publish the remaining results and follow-up in high-impact peer-reviewed journals.
IPD sharing planThe datasets generated during and/or analysed during the current study are/will be available upon request from Mr Edwin Dierselhuis (e.f.dierselhuis@umcg.nl).

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Results article results 01/11/2014 Yes No

Editorial Notes

18/07/2017: Internal edit.