The purpose of this study is to demonstrate the efficacy of implementing the enhanced recovery after surgery (ERAS) pathway in a prospective manner to patients undergoing surgical treatment for extremity sarcoma.

The purpose of this expanded access protocol (EAP) is to provide controlled access to Afamitresgene autoleucel, suspension for intravenous infusion that does not meet the commercial release specification (NC afami-cel). This EAP will be conducted at authorized treatment centers where TECELRA is being administered and where the EAP is approved to be conducted. Patients who are prescribed TECELRA , sign the informed consent form, and meet all entry criteria will be eligible to participate in this protocol.

This phase III trial compares the effect of open thoracic surgery (thoracotomy) to thoracoscopic surgery (video-assisted thoracoscopic surgery or VATS) in treating patients with osteosarcoma that has spread to the lung (pulmonary metastases). Open thoracic surgery is a type of surgery done through a single larger incision (like a large cut) that goes between the ribs, opens up the chest, and removes the cancer. Thoracoscopy is a type of chest surgery where the doctor makes several small incisions and uses a small camera to help with removing the cancer. This trial is being done evaluate the two different surgery methods for patients with osteosarcoma that has spread to the lung to find out which is better.