PRIMARY OBJECTIVE:
I. To determine if open surgical resection is superior to thoracoscopic resection for
thoracic event-free survival (tEFS) in patients with resectable oligometastatic pulmonary
osteosarcoma.
SECONDARY OBJECTIVES:
I. To determine if open surgical resection is superior to thoracoscopy for event free
survival (EFS) in patients with resectable oligometastatic pulmonary osteosarcoma.
II. To determine if open surgical resection is superior to thoracoscopy for overall
survival (OS) in patients with resectable oligometastatic pulmonary osteosarcoma.
III. To determine if thoracoscopy is superior to open surgical resection for
post-operative pain interference in patients with resectable oligometastatic pulmonary
osteosarcoma.
EXPLORATORY OBJECTIVES:
I. To compare 30-day rates of perioperative surgical complications for both open surgical
resection and thoracoscopy.
II. To compare patterns of recurrence (ipsilateral and/or contralateral) in patients who
undergo open or thoracoscopic resection for unilateral or bilateral pulmonary metastases.
III. To describe the use of localization techniques and its relationship with both
surgical approach and pathologic findings.
IV. To assess the prognostic significance of a decision to change the post-operative
treatment plan.
V. To describe the relationship between the preoperative chest computed tomography (CT)
imaging, intraoperative surgical findings, and pathologic results, comparing radiological
features to the presence of viable tumor.
VI. To prospectively compare between treatment arms the relationship between surgical
approach and patient-reported outcomes (PROs), specifically patient functional impairment
of the upper extremities, pain intensity, and health-related quality of life (HRQoL).
VII. To generate well-characterized, clinically-annotated, distributable models of
metastatic osteosarcoma.
VIII. To collect and bank pulmonary metastatic lesions (including frozen tissues and
paired metastatic lesions coming from the same patient) to facilitate study of metastatic
disease and serial blood samples for future tumor profiling, germline and circulating
tumor deoxyribonucleic acid (DNA) studies.
OUTLINE: Patients are randomized into 1 of 2 arms.
ARM A: Patients undergo open thoracic surgery (thoracotomy).
ARM B: Patients undergo thoracoscopy (video-assisted thoracoscopic surgery or VATS).
All patients undergo computed tomography (CT) throughout the trial. Patients may also
undergo collection of tissue on study and blood throughout the trial.
After completion of study treatment, patients are followed up at 7-14 days, 4-6 weeks,
and 3 months post-surgery and then every 3 months for up to 2 years.