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Clinical Trial Summary

Use exosome microfluidic chips to establish a combination of exosome subgroup level (exosome barcode) markers for the early diagnosis of osteosarcoma lung recurrence, and establish the basis of microfluidic chip based exosome biomarker for monitoring the early therapeutic response of the second-line therapy for recurrent osteosarcoma.


Clinical Trial Description

Osteosarcoma is the most common primary malignant bone tumor in adolescents, and lung metastasis is the main cause of its poor prognosis. Our previous data on the basis of second-line chemotherapy combined with VEGFRi targeted therapy for patients with lung metastases from osteosarcoma showed that some patients with early diagnosis of lung metastases may achieved long-term tumor-free survival upon prompt treatment. However, plasma biomarker for the early detection of recurrent osteosarcoma is still lacking to date. Our preliminary studies indicate that exosome is a potential source of liquid biomarker for the early diagnosis of osteosarcoma lung metastasis. We, therefore, have developed a microfluidic biochip based on nano-zinc oxide microcolumns. This chip can quickly and efficiently screen and capture exosomes and achieve quantitative and qualitative detection of exosome and its subgroups. This technology may be able to achieve early sensitive exosome quantification for lung metastasis of osteosarcoma. But the clinical efficacy and utility of the microfluidic chip based exosome detection for the early diagnosis osteosarcoma recurrence remains to be validated. This research plan uses our newly developed microfluidic chip technology to capture and efficiently capture exosomes for quantitative and qualitative and marker screening, and establish a combination of exosome subgroups level as a biomarker for the early diagnosis of osteosarcoma lung metastasis. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT05101655
Study type Observational
Source Ruijin Hospital
Contact
Status Completed
Phase
Start date October 1, 2020
Completion date September 30, 2022

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