Liquid Biopsy for Bone Cancer
What You Need to Know Before You Apply
What is the purpose of this trial?
This trial examines how a liquid biopsy (a blood test) can predict outcomes in individuals with Ewing sarcoma or osteosarcoma, both types of bone cancer. Researchers collect blood samples at various times to identify specific markers that might provide doctors with more information about the cancer. The trial uses FoundationOne Liquid CDx, a specific liquid biopsy, to analyze these markers. It is suitable for individuals newly diagnosed with Ewing sarcoma or high-grade osteosarcoma that has not spread to distant parts of the body and who have not yet started chemotherapy or radiation. Participants will provide blood samples, and doctors will collect data about their disease. As an unphased trial, this study offers a unique opportunity to contribute to groundbreaking research that could improve future cancer care.
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 prior data suggests that this liquid biopsy method is safe for patients with bone cancer?
Research has shown that FoundationOne Liquid CDx is safe for people. The FDA has already approved this test for certain conditions, indicating it has passed safety checks for those uses. Studies have demonstrated its effectiveness as a companion diagnostic, helping doctors choose treatments by analyzing genes from a blood sample.
Previous studies tested it in people with high-risk solid tumors and found it feasible, meaning patients tolerated it well. These studies reported no serious safety issues. Overall, the available data suggest that FoundationOne Liquid CDx is a safe option for analyzing specific cancer markers in the blood.12345Why are researchers excited about this trial?
Researchers are excited about this trial because it explores using a liquid biopsy technique to detect and monitor bone cancer through ctDNA, which is circulating tumor DNA found in the blood. Unlike traditional methods that rely on invasive tissue biopsies, this approach uses a simple blood draw to gather information about the cancer. This could lead to quicker, less painful, and more frequent monitoring of the disease, potentially allowing for more personalized and timely treatment adjustments. By using FoundationOne Liquid CDx, researchers aim to better understand the genetic landscape of the cancer, which could open doors to targeted therapy options and improve patient outcomes.
What evidence suggests that this trial's method of using FoundationOne Liquid CDx for detecting ctDNA is effective for bone cancer?
Research has shown that FoundationOne Liquid CDx effectively identifies cancer-related genetic changes in the blood. This test examines 324 cancer-linked genes, enabling doctors to understand the tumor's genetic details without a tissue sample. Studies have demonstrated its success in detecting genetic markers across various solid tumors. The test aids in selecting treatments, particularly when obtaining tissue samples is challenging. It has proven useful in identifying specific gene changes that may respond well to certain cancer treatments. Although the test does not treat cancer, it provides crucial information for disease management. In this trial, participants will have their blood samples collected and analyzed using FoundationOne Liquid CDx to evaluate circulating tumor DNA (ctDNA) as part of the study's investigation into bone cancer.13456
Who Is on the Research Team?
David S Shulman, MD
Principal Investigator
Dana-Farber Cancer Institute
Are You a Good Fit for This Trial?
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
Exclusion Criteria
Timeline for a Trial Participant
Screening
Participants are screened for eligibility to participate in the trial
Part A: ctDNA Evaluation
Participants provide blood samples at pre-defined times to evaluate ctDNA for genetic alterations in Ewing sarcoma or osteosarcoma.
Part B: ctDNA Return of Results
Participants provide blood samples for ctDNA testing, with results returned to providers and patients.
Follow-up
Participants are monitored for event-free survival and other outcomes after the main study phases.
What Are the Treatments Tested in This Trial?
Interventions
- FoundationOne Liquid CDx
Find a Clinic Near You
Who Is Running the Clinical Trial?
Dana-Farber Cancer Institute
Lead Sponsor
Conquer Cancer Foundation
Collaborator
Alex's Lemonade Stand Foundation
Industry Sponsor
Harvard University
Collaborator
Sam Day Foundation
Collaborator