NCT02544711

Brief Summary

Primitive malignant bone tumor or mixt tumor (compounded of soft tissues and bone) is a rare pathology particularly within the pelvis, the sacrum or the hip (between 25 and 80 new cases in France per year). The reference treatment is a surgical "en bloc" resection associated or not to a medical treatment. This surgery remains highly challenging because of the complex three-dimensional geometry of the pelvic bone and the proximity of important organs and neurovascular structures. The local recurrence rate is significantly increased when the resection does not respect a safe tissues margin (R0 margin). A new technology has been developed and used in different reference sites the Patient Specific Instrument (PSI), manufactured by 3D-Side. The PSI allows for a more secure and reliable surgical gesture, leading to more frequent R0 margins. The main objective of this study is to compare the efficiency of the PSI for bone tumor resections within the pelvis with respect to the reference method.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
88

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Dec 2015

Longer than P75 for not_applicable

Geographic Reach
1 country

8 active sites

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

August 24, 2015

Completed
16 days until next milestone

First Posted

Study publicly available on registry

September 9, 2015

Completed
3 months until next milestone

Study Start

First participant enrolled

December 1, 2015

Completed
5.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 1, 2021

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

May 1, 2021

Completed
Last Updated

July 28, 2021

Status Verified

July 1, 2021

Enrollment Period

5.4 years

First QC Date

August 24, 2015

Last Update Submit

July 27, 2021

Conditions

Keywords

PelvisSurgical resectionPatient specific instrument

Outcome Measures

Primary Outcomes (1)

  • ICER between the innovation treatment group and the reference treatment group.

    Incremental Cost-Effectiveness Ratio (ICER) as assessed from the healthcare system perspective: Cost/Local prevented recurrence at 3 years postoperatively

    3 years

Secondary Outcomes (6)

  • R0, R1 and R2 margin rates

    Within 3 years after surgery

  • Rate and nature of adverse events related to surgery for each treatment group

    Per-operatively and within 3 years after surgery

  • Quality Of Life (QOL) of patients treated by PSI (prospective group)

    0, 6, 12, 18, 24, 30 and 36 months

  • Indirect estimations of means of Quality Adjusted Life Years (QALYs) of patients treated by the reference treatment (retrospective group) extrapolated from QOL of patients treated by PSI (prospective group)

    3 years

  • MSTS score

    12 and 36 months

  • +1 more secondary outcomes

Study Arms (2)

Prospective group :Innovation

EXPERIMENTAL

Surgical treatment using a patient specific instrument (PSI)

Device: Patient specific instrument

Retrospective group: Reference

OTHER

Conventional surgical treatment without PSI, using 2D imaging planification

Procedure: Conventional surgical treatment

Interventions

The proposed innovation consists in using patient specific instrument (PSI) for tumor resection. It is compounded of a preoperative assistance to plan the surgery and an intraoperative assistance to reproduce the preoperative planning.

Also known as: PSI-T, 3D-Side
Prospective group :Innovation

The conventional treatment is planned on two-dimensional images (CT and MRI).

Retrospective group: Reference

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Surgery date within the 6 years before the study activation in the participating center
  • Adult (18 years old or more) at the time of surgery
  • Prospective group (innovation)
  • Primitive malignant pelvic bone tumor or mixt tumor (primary bone sarcoma, soft tissue sarcoma with bone extension, giant cells tumor of bone and any tumor requiring such a resection)
  • Indication for a wide monobloc resection according to clinical guidelines of the pathology ("en bloc" resection of iliac bone including a bone section from periacetabular Enneking zone 2 to the sacrum zone 4, hip extra-articular resection for proximal femur tumors and sacral tumor or ilio-sacral tumors that need a vertical osteotomy or horizontal osteotomy above S2)
  • Ability to fill in Euroqol and TESS questionnaires
  • Adult (18 years old or more)
  • Health insurance holder
  • Retrospective group (reference)
  • Patient fulfilling the matching criteria with one patient of the prospective group, according to the following matching criteria (in order of importance):
  • Tumor location (Enneking zones 1, 2, 1-2, 2-3, 1-2-3, 1-2-4, 1-2-3-4, 1-4, sacrum)
  • Tumor type (chondrosarcoma, osteosarcoma, Ewing, chordoma, other tumor type)
  • Surgery center
  • Tumor size (as close as possible between both patients)
  • Response to chemotherapy (good, bad, not applicable).

You may not qualify if:

  • Prospective group (innovation)
  • Patient suffering from a local recurrence or a metastasis at recruitment time
  • Absence of informed consent
  • Pregnancy or breastfeeding
  • Minors
  • Adults under guardianship or trusteeship
  • Retrospective group (reference)
  • Patient not fulfilling the protocol matching criteria
  • Refusal to participate

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (8)

Lille University Hospital

Lille, France

Location

Lyon Centre Léon Bérard

Lyon, France

Location

Lyon CRCM Les Massues

Lyon, France

Location

Marseille University Hospital

Marseille, France

Location

Nancy Centre Chirurgical Emile Gallé

Nancy, France

Location

Nantes University Hospital

Nantes, 44000, France

Location

Paris Hospital Cochin

Paris, France

Location

Paris Hospital Kremlin-Bicêtre

Paris, France

Location

MeSH Terms

Conditions

SarcomaBone Neoplasms

Condition Hierarchy (Ancestors)

Neoplasms, Connective and Soft TissueNeoplasms by Histologic TypeNeoplasmsNeoplasms by SiteBone DiseasesMusculoskeletal Diseases

Study Officials

  • François Gouin, Professor

    Nantes University Hospital

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NON RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

August 24, 2015

First Posted

September 9, 2015

Study Start

December 1, 2015

Primary Completion

May 1, 2021

Study Completion

May 1, 2021

Last Updated

July 28, 2021

Record last verified: 2021-07

Locations