Skip to content

Patterns of Care and Outcomes in Patients With Metastatic Bone Tumors (METABONE)

Patterns of Care and Outcomes of Patients With METAstatic BONE Tumors in a Real-life Setting

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT03963531
Acronym
METABONE
Enrollment
545
Registered
2019-05-24
Start date
2008-01-05
Completion date
2025-01-31
Last updated
2025-12-10

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Metastatic Bone Tumor

Brief summary

Bone tumors make up about 3-5% of childhood cancers and less than 1% of cancers in adults. Of these, osteosarcoma (OSS) is the most commonly diagnosed primary malignant bone tumor. OSS is a primary mesenchymal malignant tumor of bone characterized by the production of osteoid or immature bone by the malignant cells. Despite its rarity, OSS is the most common primary malignancy of bone in children and adolescents, and the fifth most common malignancy among adolescents and young adults aged 15 to 19 years. Ewing sarcoma (ES) is the second most frequent bone tumors in children and may arise also in soft tissues. This disease encompasses tumors formerly known as Askin's tumor, Peripheral Neuroectodermal Tumor (PNET) and the Ewing Sarcoma Family of Tumors (ESFT). Chondrosarcoma are rare sarcoma reputed chemorefractory in the non-operable setting and for which little is known in terms of palliative management with systemic treatments. Despite adequate loco-regional treatment, up to 40% of patients with sarcoma, soft tissue or bone, will develop metastatic disease. When metastases are detected, the standard of care is based on palliative chemotherapy with a median survival in this setting of only 18 months. A slight improvement has been obtained over years thank to registration of a couple of drugs such as Trabectedin and Pazopanib, the first antiangiogenic registered for soft tissue sarcoma patients. Pazopanib is routinely prescribed worldwide after failure of first line chemotherapy in soft tissue sarcoma. However, bone tumors have not benefited from these small advances yet and treatment still rely on chemotherapy combining doxorubicine cisplatinum and ifosfamide. There is no standard in relapse and palliative settings, and after failure of these agents the survival is very poor. Bone sarcomas are therefore tumors with very little available data and low level of evidence on palliative systemic treatments in clinical trials and in the real life setting. The primary objective of the METABONE study is to conduct a retrospective descriptive analysis of clinic-biological profiles, patterns of care and modalities of treatment for a set of patients with malignant bone tumors in a real-life national setting.

Interventions

chemotherapy, surgery, radiotherapy, interventional radiology.

Sponsors

French Sarcoma Group
CollaboratorOTHER
Institut Bergonié
Lead SponsorOTHER

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
12 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Patients aged \>= 12 years * Informed consent obtained for inclusion in the databases * Histology of Ewing's sarcoma type, osteosarcoma, chondrosarcoma * Diagnostic between 2008 and 2018

Design outcomes

Primary

MeasureTime frameDescription
Time to Next Treatment (TNT)5 yearstime from the systemic treatment onset to the next treatment or death due to any cause, whichever comes first
Overall Survival (OS)5 yearsInterval between the diagnosis of metastatic disease or the first-line systemic therapy onset and the time of death.

Countries

France

Participant flow

Participants by arm

ArmCount
Metastatic Osteosarcoma
Patients aged ≥ 12 years 1/ with a diagnosis of osteosarcoma made by an expert pathologist from one of the French network centers (RESOS), 2/ with an initial diagnosis made from 2008 to 2018, 3/ with a metastatic disease (either synchronous or metachronous), 4/ treated in one of the 11 participating national reference centers designated by the French National Cancer Institute for the management of bone sarcomas Any cancer treatment: chemotherapy, surgery, radiotherapy, interventional radiology.
262
Metastatic Chondrosarcoma
Patients aged ≥12 years (1) with a diagnosis of chondrosarcoma made by an expert pathologist from one of the French network centers, (2) with an initial diagnosis made from 2008 to 2018, (3) with a metastatic disease (either synchronous or metachronous), (4) treated in one of the nine participating national reference centers designated by the French National Cancer Institute for the management of bone sarcomas Any cancer treatment: chemotherapy, surgery, radiotherapy, interventional radiology.
127
Ewing's Sarcoma
Any cancer treatment: chemotherapy, surgery, radiotherapy, interventional radiology.
156
Total545

Baseline characteristics

CharacteristicMetastatic ChondrosarcomaEwing's SarcomaTotalMetastatic Osteosarcoma
Age, Continuous63 years21 years40 years27 years
Race and Ethnicity Not Collected0 Participants
Region of Enrollment
France
127 participants156 participants389 participants262 participants
Sex: Female, Male
Female
43 Participants44 Participants199 Participants112 Participants
Sex: Female, Male
Male
84 Participants112 Participants346 Participants150 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
172 / 26293 / 127115 / 156
other
Total, other adverse events
0 / 00 / 00 / 0
serious
Total, serious adverse events
0 / 00 / 00 / 0

Outcome results

Primary

Overall Survival (OS)

Interval between the diagnosis of metastatic disease or the first-line systemic therapy onset and the time of death.

Time frame: 5 years

ArmMeasureValue (MEDIAN)
Metastatic OsteosarcomaOverall Survival (OS)21.5 months
Metastatic ChondrosarcomaOverall Survival (OS)12.7 months
Ewing's SarcomaOverall Survival (OS)26.6 months
Primary

Time to Next Treatment (TNT)

time from the systemic treatment onset to the next treatment or death due to any cause, whichever comes first

Time frame: 5 years

ArmMeasureValue (MEDIAN)
Metastatic OsteosarcomaTime to Next Treatment (TNT)8.2 months
Metastatic ChondrosarcomaTime to Next Treatment (TNT)4.6 months
Ewing's SarcomaTime to Next Treatment (TNT)12.5 months

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026