A Phase 2 interventional study of Biospecimen Collection and Computed Tomography in Metastatic Leiomyosarcoma, Unresectable Leiomyosarcoma and Bone Sarcoma, sponsored by Northwestern University. Recruiting at 1 site in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-06-18.
Sponsored by Northwestern University · Phase 2, Interventional, and Treatment
This phase II trial tests how well zanzalintinib (XL092) works in treating patients with leiomyosarcoma that has spread from where it first started to other places in the body (metastatic) or that cannot be removed by surgery (unresectable). Leiomyosarcomas are a type sarcoma that can occur in any location in the body, such as the uterus or in the abdomen. Current standard treatment for leiomyosarcoma only shows a progression-free survival of 4-6 months. XL092, a tyrosine kinase inhibitor, interferes with cell communication and growth and may prevent tumor growth. Giving XL092 may kill more tumor cells in patients with metastatic or unresectable leiomyosarcoma. The trial has now been expanded to treat additional sarcoma types that are sensitive to tyrosine kinase inhibitors (TKIs) such as translocation-associated soft tissue sarcoma (such as synovial sarcoma), and bone sarcoma (including osteosarcoma and Ewing sarcoma).
PRIMARY OBJECTIVE:
I. Evaluate 6-month progression-free survival (PFS) of patients with advanced leiomyosarcoma (LMS), bone sarcoma, or translocation-associated soft tissue sarcoma (TAS) who have been treated with zanzalintinib (XL092) monotherapy.
SECONDARY OBJECTIVES:
I. Evaluate median progression-free survival (PFS) in patients with advanced leiomyosarcoma (LMS), bone sarcoma, or translocation-associated soft tissue sarcoma (TAS) who have been treated with XL092 monotherapy.
II. Determine overall survival (OS) in patients with advanced leiomyosarcoma (LMS), bone sarcoma, or translocation-associated soft tissue sarcoma (TAS) who have been treated with XL092 monotherapy.
III. Determine overall response rate (ORR) in patients with advanced leiomyosarcoma (LMS), bone sarcoma, or translocation-associated soft tissue sarcoma (TAS) who have been treated with XL092 monotherapy.
IV. Assess duration of response (DOR) in patients with advanced leiomyosarcoma (LMS), bone sarcoma, or translocation-associated soft tissue sarcoma (TAS) who have been treated with XL092 monotherapy.
V. Assess toxicity of XL092 in patients with advanced leiomyosarcoma (LMS), bone sarcoma, or translocation-associated soft tissue sarcoma (TAS) who have been treated with such as monotherapy.
OUTLINE:
Patients receive XL092 orally (PO) once daily (QD) on days 1-14 of each cycle. Cycles repeat every 14 days in the absence of disease progression or unacceptable toxicity. Patients also undergo echocardiography (ECHO) or multigated acquisition scan (MUGA) at screening and then as clinically indicated, and blood sample collection on study and computed tomography (CT) throughout the study.
After completion of study treatment, patients complete a 30 day follow-up visit and will then follow up every 12 weeks for 2 years and then every 6 months for up to 5 years from start of study treatment.
Inclusion Criteria For Cohort 1 - Leiomyosarcoma:
Inclusion Criteria For Cohort 2 - Bone Sarcoma:
Inclusion Criteria For Cohort 3 - Translocation-associated Soft Tissue Sarcoma:
Inclusion Criteria for All Cohorts/Sarcoma Types
Exclusion Criteria:
Patients with a known prior or concurrent malignancy that is progressing or requires active treatment within 2 years of first dose of study treatment. Note: The following exceptions may be made:
The patient has uncontrolled, significant intercurrent or recent illness including, but not limited to, the following conditions:
Cardiovascular disorders:
Gastrointestinal (GI) disorders including those associated with a high risk of perforation or fistula formation:
Note: Patients with intravascular tumor extension (e.g., tumor thrombus in renal vein or inferior vena cava) may be eligible following PI approval
Other clinically significant disorders that would preclude safe study participation, including, but not limited to:
Recent surgery within the following parameters:
Patients with any unresolved toxicity National Cancer Institute (NCI) Common Terminology Criteria for Adverse Event (CTCAE) grade > 1 at baseline from a previous anticancer therapy, with the following exceptions:
Patients receive XL092 PO QD on days 1-14 of each cycle. Cycles repeat every 14 days in the absence of disease progression or unacceptable toxicity. Patients also undergo ECHO or MUGA at screening and then as clinically indicated, and blood sample collection on study and CT throughout the study.
Procedure: Biospecimen Collection · Procedure: Computed Tomography · Procedure: Echocardiography · Procedure: Multigated Acquisition Scan · Drug: Zanzalintinib
Undergo blood sample collection
Also known as: Biological Sample Collection, Biospecimen Collected, Specimen Collection
Undergo CT
Also known as: CAT, CAT Scan, Computed Axial Tomography, Computerized Axial Tomography, Computerized axial tomography (procedure), Computerized Tomography, Computerized Tomography (CT) scan, CT, CT Scan, tomography
Undergo ECHO
Also known as: EC
Undergo MUGA
Also known as: Blood Pool Scan, Equilibrium Radionuclide Angiography, Gated Blood Pool Imaging, Gated Heart Pool Scan, MUGA, MUGA Scan, Multi-Gated Acquisition Scan, Radionuclide Ventriculogram Scan, Radionuclide Ventriculography, RNVG, SYMA Scanning, Synchronized Multigated Acquisition Scanning
Given PO
Also known as: Multi-kinase Inhibitor XL092, XL 092, XL-092, XL092
Progression-free survival (PFS)
PFS will be defined as progressive disease per Response Evaluation Criteria in Solid Tumors (RECIST) version (v)1.1.other documented clinical or radiographic progression per physician judgment, or death due to disease.
Time frame: Up to 6 months
Median PFS
Median PFS will be calculated as the overall PFS time as the time that elapses between initiation of trial therapy and first documented disease progression or death from any cause, whichever come first.
Time frame: Up to 5 years
Overall survival (OS)
OS will be calculated as the time that elapses between the day of patient registration and death from any cause.
Time frame: Up to 5 years
Overall response rate (ORR)
ORR will be defined as the proportion of treated patients who experience an objective response (confirmed complete response or confirmed partial response per RECIST v 1.1.).
Time frame: Up to 5 years
Duration of response (DOR)
DOR will be calculated as the time that elapses between the day of first documented response to trial therapy (confirmed CR or confirmed PR, whichever is first recorded) and subsequent disease progression. DOR will be estimated as median and interquartile range or mean and a confidence interval depending on the distribution.
Time frame: Up to 5 years
Incidence of adverse events (AEs)
Frequency of AES will be reported by type, severity (grade), timing, and attribution according to the National Cancer Institute Common Terminology Criteria for Adverse Events version 5.0. AEs will be reported using descriptive statistics.
Time frame: Up to 30 days after last dose of study drug
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