~30 spots leftby Jan 2026

Liquid Biopsy for Bone Cancer

Recruiting in Palo Alto (17 mi)
+14 other locations
DS
Overseen byDavid S Shulman, MD
Age: < 65
Sex: Any
Travel: May Be Covered
Time Reimbursement: Varies
Trial Phase: Academic
Recruiting
Sponsor: Dana-Farber Cancer Institute
Must be taking: Chemotherapy
Disqualifiers: Metastatic disease, Ewing-like sarcoma, others
No Placebo Group
Approved in 2 Jurisdictions

Trial Summary

What is the purpose of this trial?

This trial is testing a blood test that looks for small pieces of tumor DNA in patients with Ewing sarcoma or osteosarcoma. The goal is to see if this test can help predict if the cancer will return after treatment. A group of patients will participate to help researchers understand how useful this test can be.

Will I have to stop taking my current medications?

The trial information does not specify whether you need to stop taking your current medications. It mainly focuses on patients who have not yet started chemotherapy or radiation therapy, or those who have a pre-treatment sample available.

What data supports the effectiveness of the treatment FoundationOne Liquid CDx for bone cancer?

Research shows that FoundationOne Liquid CDx can identify targetable mutations in high-risk cancers, including bone sarcoma, which can guide treatment decisions. Liquid biopsies, like FoundationOne Liquid CDx, are effective in other cancers for monitoring therapy and identifying treatment targets, suggesting potential benefits for bone cancer as well.12345

How is the liquid biopsy treatment for bone cancer different from other treatments?

Liquid biopsy is unique because it uses a simple blood or urine test to detect cancer-related molecules, making it less invasive and painful than traditional tissue biopsies. This approach can help monitor the cancer in real-time and guide treatment decisions without the need for surgical procedures.23567

Research Team

DS

David S Shulman, MD

Principal Investigator

Dana-Farber Cancer Institute

Eligibility Criteria

The LEOPARD trial is for individuals aged 12 months to 50 years with a new diagnosis of Ewing sarcoma or high-grade osteosarcoma, who have not started or just begun treatment. It's not for those with distant metastatic disease, other types of sarcomas, complete tumor resection before joining the study, pelvic primary tumors in osteosarcoma patients, or if pregnant.

Inclusion Criteria

I have received previous treatments for my condition.
I am scheduled to receive chemotherapy.
I am between 1 year and 50 years old.
See 12 more

Exclusion Criteria

For Part B, subjects must not meet any of the following exclusion criteria.
Resides outside of the United States
Pregnancy
See 13 more

Trial Timeline

Screening

Participants are screened for eligibility to participate in the trial

2-4 weeks

Part A: ctDNA Evaluation

Participants provide blood samples at pre-defined times to evaluate ctDNA for genetic alterations in Ewing sarcoma or osteosarcoma.

6 months
Multiple visits for blood sample collection

Part B: ctDNA Return of Results

Participants provide blood samples for ctDNA testing, with results returned to providers and patients.

6 months
Multiple visits for blood sample collection

Follow-up

Participants are monitored for event-free survival and other outcomes after the main study phases.

2 years

Treatment Details

Interventions

  • FoundationOne Liquid CDx (Cancer Biomarker Test)
Trial OverviewThis trial tests the use of FoundationOne Liquid CDx liquid biopsy to see how well it predicts outcomes and monitors response to therapy in patients with Ewing sarcoma or osteosarcoma. Participants will be monitored over time to assess changes in ctDNA levels.
Participant Groups
2Treatment groups
Experimental Treatment
Active Control
Group I: EWING ctDNA RETURN OF RESULTSExperimental Treatment1 Intervention
This study involves collection of blood samples at pre-specified time points as well as collection of information about this disease. For each timepoint, submit two tubes of blood (17 mL total or a little more than 3 teaspoons) to a commercial testing laboratory called Foundation Medicine and one tube of blood (10 mL or 2 teaspoons) to standard ctDNA workflow
Group II: REG EWING or OSTEO: ctDNA EVALUATIONActive Control1 Intervention
This study involves collection of blood samples at pre-specified time points as well as collection of information about this disease. For each timepoint, submit two tubes of blood (17 mL total or a little more than 3 teaspoons) per standard ctDNA workflow

Find a Clinic Near You

Research Locations NearbySelect from list below to view details:
Seattle Children's HospitalSeattle, WA
Childrens Hospital Los AngelesLos Angeles, CA
Children's Healthcare of AtlantaAtlanta, GA
Massachusetts General Hospital Cancer CenterBoston, MA
More Trial Locations
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Who Is Running the Clinical Trial?

Dana-Farber Cancer Institute

Lead Sponsor

Trials
1128
Patients Recruited
382,000+

Conquer Cancer Foundation

Collaborator

Trials
22
Patients Recruited
4,000+

Alex's Lemonade Stand Foundation

Industry Sponsor

Trials
9
Patients Recruited
1,500+

Harvard University

Collaborator

Trials
237
Patients Recruited
588,000+

Sam Day Foundation

Collaborator

Trials
1
Patients Recruited
340+

Findings from Research

Blood-Derived Liquid Biopsies Using Foundation One&#174; Liquid CDx for Children and Adolescents with High-Risk Malignancies: A Monocentric Experience.Cahn, F., Revon-Riviere, G., Min, V., et al.[2022]
Liquid biopsies in primary and secondary bone cancers.Ucci, A., Rucci, N., Ponzetti, M.[2022]
Clinical Perspective and Translational Oncology of Liquid Biopsy.Fernández-Lázaro, D., Hernández, JLG., García, AC., et al.[2020]
Liquid Biopsy in Colorectal Cancer: Quo Vadis? Implementation of Liquid Biopsies in Routine Clinical Patient Care in Two German Comprehensive Cancer Centers.Fischer, LE., Stintzing, S., Heinemann, V., et al.[2022]
Liquid Biopsy in Solid Malignancy.Scarlotta, M., Simsek, C., Kim, AK.[2023]
Liquid biopsies in pediatric oncology: opportunities and obstacles.Sundby, RT., Pan, A., Shern, JF.[2023]
Recommendations for a practical implementation of circulating tumor DNA mutation testing in metastatic non-small-cell lung cancer.Heitzer, E., van den Broek, D., Denis, MG., et al.[2022]

References

Blood-Derived Liquid Biopsies Using Foundation One&#174; Liquid CDx for Children and Adolescents with High-Risk Malignancies: A Monocentric Experience. [2022]
Liquid biopsies in primary and secondary bone cancers. [2022]
Clinical Perspective and Translational Oncology of Liquid Biopsy. [2020]
Liquid Biopsy in Colorectal Cancer: Quo Vadis? Implementation of Liquid Biopsies in Routine Clinical Patient Care in Two German Comprehensive Cancer Centers. [2022]
Liquid Biopsy in Solid Malignancy. [2023]
Liquid biopsies in pediatric oncology: opportunities and obstacles. [2023]
Recommendations for a practical implementation of circulating tumor DNA mutation testing in metastatic non-small-cell lung cancer. [2022]