Clinical Research Directory

Fluorescence-Guided Surgical Resection for Reducing Unexpected Positive Margins in Patients With Sarcoma, SarcoSIGHT Trial

This phase II trial compares standard of care surgical resection to fluorescence-guided surgical resection using indocyanine green and fluorescence imaging for reducing unexpected positive margin rates in patients with sarcoma. Surgical margins are one of the criteria used in assessing the effectiveness of a given surgical procedure. They are the edges or border of the tissue removed in cancer surgery. A negative margin means that the resected tumor is surrounded by normal tissue, which implies there is no disease left in the patient. By contrast, a positive margin means that sarcoma cells are visible at the edge of the tumor. Positive margins may be classified as planned when they are expected pre-operatively due to the preservation of a critical structure, or unexpected when the pathologist reports the presence of tumor at the margin despite the surgeon having intended to remove it in its entirety. Fluorescence-guided surgery is an established surgical method that involves the administration of fluorescent dye (in this case, indocyanine green) into the tumor, which can then be visualized with a special camera during surgery to help surgeons identify tumor versus healthy tissue. Fluorescence-guided surgery may reduce the rate of unexpected positive margins in patients undergoing surgery for sarcoma.

Habitat Escalated Adaptive Therapy (HEAT), With Neoadjuvant Radiation for Soft Tissue Sarcoma

The purpose of the study is to utilize radiomic images to precisely locate areas of tumor that can be treated with dose escalation radiation therapy.

Registry For Children, Adolescents And Adults With Osteosarcoma And Biologically Related Bone Sarcomas

The Registry For Children, Adolescents And Adults With Osteosarcoma And Biologically Related Bone Sarcomas (COSS-Registry) is a non-interventional, multicentric, international, clinical and epidemiologic patient registry. The COSS-Registry collects key data on osteosarcomas or biologically related bone sarcomas. With that data collection we want to gain new scientific insights and results about this tumor disease, prognosis, surveillance and long-term effects. Besides the data collection we would also like to foster the collection of biomaterial (tumor specimen and blood samples) for scientific research. The stored material will be used to perform cell and molecular biological analyses to identify the causes of osteosarcoma, the prognosis and possible new treatment options. As a starting point the donated biomaterial of registered patients will be analyzed firstly for the presence of a tumor predisposition by germline mutations. In case of detected genetic variations that are related to the tumor disease and which may affect the patient's health and follow-up care (because of the potentially increased risk of developing other malignant tumors), affected patients will be informed and referred to genetic counseling. Registry patients will be asked at the time of diagnosis if they wish to be informed about germline variants detected as part of the study procedures.